TY - JOUR T1 - Using the paleo-record to constrain future Arctic climate change from global climate models AN - 1861092119; 763019-35 JF - Abstract Volume (Geological Association of Canada) AU - Tremblay, Bruno AU - Huard, David B AU - Schmidt, Gavin A AU - de Vernal, Anne AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 SP - Abstract PP32A EP - 07 PB - Geological Association of Canada, Waterloo, ON VL - 38 SN - 1716-6098, 1716-6098 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861092119?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstract+Volume+%28Geological+Association+of+Canada%29&rft.atitle=Using+the+paleo-record+to+constrain+future+Arctic+climate+change+from+global+climate+models&rft.au=Tremblay%2C+Bruno%3BHuard%2C+David+B%3BSchmidt%2C+Gavin+A%3Bde+Vernal%2C+Anne%3BAnonymous&rft.aulast=Tremblay&rft.aufirst=Bruno&rft.date=2015-01-01&rft.volume=38&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstract+Volume+%28Geological+Association+of+Canada%29&rft.issn=17166098&rft_id=info:doi/ L2 - http://www.gac.ca/activities/ LA - English DB - GeoRef N1 - Conference title - Joint assembly of the American Geophysical Union, Geological Association of Canada, Mineralogical Association of Canada, and Canadian Geophysical Union N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - ON N1 - Last updated - 2017-01-24 ER - TY - JOUR T1 - Volcanoes and water vapor feedback in the past and implications for the future AN - 1861092110; 763019-34 JF - Abstract Volume (Geological Association of Canada) AU - LeGrande, Allegra N AU - Tsigaridis, Kostas AU - Bauer, Susanne AU - Schmidt, Gavin A AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 SP - Abstract PP32A EP - 06 PB - Geological Association of Canada, Waterloo, ON VL - 38 SN - 1716-6098, 1716-6098 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861092110?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstract+Volume+%28Geological+Association+of+Canada%29&rft.atitle=Volcanoes+and+water+vapor+feedback+in+the+past+and+implications+for+the+future&rft.au=LeGrande%2C+Allegra+N%3BTsigaridis%2C+Kostas%3BBauer%2C+Susanne%3BSchmidt%2C+Gavin+A%3BAnonymous&rft.aulast=LeGrande&rft.aufirst=Allegra&rft.date=2015-01-01&rft.volume=38&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstract+Volume+%28Geological+Association+of+Canada%29&rft.issn=17166098&rft_id=info:doi/ L2 - http://www.gac.ca/activities/ LA - English DB - GeoRef N1 - Conference title - Joint assembly of the American Geophysical Union, Geological Association of Canada, Mineralogical Association of Canada, and Canadian Geophysical Union N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - ON N1 - Last updated - 2017-01-24 ER - TY - JOUR T1 - Opportunities and progress in constraining future projections AN - 1861088751; 763019-29 JF - Abstract Volume (Geological Association of Canada) AU - Schmidt, Gavin A AU - LeGrande, Allegra N AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 SP - Abstract PP32A EP - 01 PB - Geological Association of Canada, Waterloo, ON VL - 38 SN - 1716-6098, 1716-6098 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861088751?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstract+Volume+%28Geological+Association+of+Canada%29&rft.atitle=Opportunities+and+progress+in+constraining+future+projections&rft.au=Schmidt%2C+Gavin+A%3BLeGrande%2C+Allegra+N%3BAnonymous&rft.aulast=Schmidt&rft.aufirst=Gavin&rft.date=2015-01-01&rft.volume=38&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstract+Volume+%28Geological+Association+of+Canada%29&rft.issn=17166098&rft_id=info:doi/ L2 - http://www.gac.ca/activities/ LA - English DB - GeoRef N1 - Conference title - Joint assembly of the American Geophysical Union, Geological Association of Canada, Mineralogical Association of Canada, and Canadian Geophysical Union N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - ON N1 - Last updated - 2017-01-24 ER - TY - JOUR T1 - Millimeter and submillimeter observations of comet 67P/C-G with the MIRO instrument AN - 1861084330; 763017-15 JF - Abstract Volume (Geological Association of Canada) AU - Von Allmen, Paul AU - Hofstadter, Mark D AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 SP - Abstract no36610 File3A EP - 04 PB - Geological Association of Canada, Waterloo, ON VL - 38 SN - 1716-6098, 1716-6098 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861084330?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstract+Volume+%28Geological+Association+of+Canada%29&rft.atitle=Millimeter+and+submillimeter+observations+of+comet+67P%2FC-G+with+the+MIRO+instrument&rft.au=Von+Allmen%2C+Paul%3BHofstadter%2C+Mark+D%3BAnonymous&rft.aulast=Von+Allmen&rft.aufirst=Paul&rft.date=2015-01-01&rft.volume=38&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstract+Volume+%28Geological+Association+of+Canada%29&rft.issn=17166098&rft_id=info:doi/ L2 - http://www.gac.ca/activities/ LA - English DB - GeoRef N1 - Conference title - Joint Assembly of the American Geophysical Union, Geological Association of Canada, Mineralogical Association of Canada, and Canadian Geophysical Union N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - ON N1 - Last updated - 2017-01-24 ER - TY - JOUR T1 - Update on line-of-sight extinction seen within Gale Crater, Mars AN - 1861084303; 763017-43 JF - Abstract Volume (Geological Association of Canada) AU - Moore, Casey A AU - Lemmon, Mark T AU - burton, John R AU - Rafkin, scot C R AU - Kahanpaa, Henrik AU - Pla-Garcia, Jorge AU - Bean, Keri M AU - Haberle, Robert Michael AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 SP - Abstract no34348 File4A EP - 0254 PB - Geological Association of Canada, Waterloo, ON VL - 38 SN - 1716-6098, 1716-6098 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861084303?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstract+Volume+%28Geological+Association+of+Canada%29&rft.atitle=Update+on+line-of-sight+extinction+seen+within+Gale+Crater%2C+Mars&rft.au=Moore%2C+Casey+A%3BLemmon%2C+Mark+T%3Bburton%2C+John+R%3BRafkin%2C+scot+C+R%3BKahanpaa%2C+Henrik%3BPla-Garcia%2C+Jorge%3BBean%2C+Keri+M%3BHaberle%2C+Robert+Michael%3BAnonymous&rft.aulast=Moore&rft.aufirst=Casey&rft.date=2015-01-01&rft.volume=38&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstract+Volume+%28Geological+Association+of+Canada%29&rft.issn=17166098&rft_id=info:doi/ L2 - http://www.gac.ca/activities/ LA - English DB - GeoRef N1 - Conference title - Joint Assembly of the American Geophysical Union, Geological Association of Canada, Mineralogical Association of Canada, and Canadian Geophysical Union N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - ON N1 - Last updated - 2017-01-24 ER - TY - JOUR T1 - Self-tuned tidal resonance and the heating of oceans onicy satellites in he Solary System (and Universe) AN - 1861083174; 763017-51 JF - Abstract Volume (Geological Association of Canada) AU - Tyler, Robert AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 SP - Abstract no35687 File4A EP - 0263 PB - Geological Association of Canada, Waterloo, ON VL - 38 SN - 1716-6098, 1716-6098 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861083174?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstract+Volume+%28Geological+Association+of+Canada%29&rft.atitle=Self-tuned+tidal+resonance+and+the+heating+of+oceans+onicy+satellites+in+he+Solary+System+%28and+Universe%29&rft.au=Tyler%2C+Robert%3BAnonymous&rft.aulast=Tyler&rft.aufirst=Robert&rft.date=2015-01-01&rft.volume=38&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstract+Volume+%28Geological+Association+of+Canada%29&rft.issn=17166098&rft_id=info:doi/ L2 - http://www.gac.ca/activities/ LA - English DB - GeoRef N1 - Conference title - Joint Assembly of the American Geophysical Union, Geological Association of Canada, Mineralogical Association of Canada, and Canadian Geophysical Union N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - ON N1 - Last updated - 2017-01-24 ER - TY - JOUR T1 - The plasma environment of 67P/Churyumov-Gerasimenko probed with the rosetta orbiter; Current observation AN - 1861083131; 763017-14 JF - Abstract Volume (Geological Association of Canada) AU - Samara, Marilla AU - Burch, James L AU - Broiles, Thomas W AU - Clark, George B AU - Cravens, Thomas AU - Goldstein, Raymond AU - Mandt, Kathleen AU - Mokashi, Prachet AU - Pollock, Craig J AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 SP - Abstract no35906 File3A EP - 03 PB - Geological Association of Canada, Waterloo, ON VL - 38 SN - 1716-6098, 1716-6098 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861083131?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstract+Volume+%28Geological+Association+of+Canada%29&rft.atitle=The+plasma+environment+of+67P%2FChuryumov-Gerasimenko+probed+with+the+rosetta+orbiter%3B+Current+observation&rft.au=Samara%2C+Marilla%3BBurch%2C+James+L%3BBroiles%2C+Thomas+W%3BClark%2C+George+B%3BCravens%2C+Thomas%3BGoldstein%2C+Raymond%3BMandt%2C+Kathleen%3BMokashi%2C+Prachet%3BPollock%2C+Craig+J%3BAnonymous&rft.aulast=Samara&rft.aufirst=Marilla&rft.date=2015-01-01&rft.volume=38&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstract+Volume+%28Geological+Association+of+Canada%29&rft.issn=17166098&rft_id=info:doi/ L2 - http://www.gac.ca/activities/ LA - English DB - GeoRef N1 - Conference title - Joint Assembly of the American Geophysical Union, Geological Association of Canada, Mineralogical Association of Canada, and Canadian Geophysical Union N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - ON N1 - Last updated - 2017-01-24 ER - TY - JOUR T1 - Chemistry of sedimentary rocks at Gale crater, Mars; alpha particle x-ray spectrometer (APXS) constraints AN - 1861082966; 763017-56 JF - Abstract Volume (Geological Association of Canada) AU - Thompson, Lucy M AU - Gellert, Raf AU - Schmidt, Mariek E AU - Berger, Jeff A AU - Boyd, Nick AU - Elliott, Beverley AU - Pavri, Betina AU - Perrett, Glynis M AU - Spray, John G AU - Van Bommel, Scott AU - Yen, Albert AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 SP - Abstract no34422 File1A EP - 02 PB - Geological Association of Canada, Waterloo, ON VL - 38 SN - 1716-6098, 1716-6098 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861082966?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstract+Volume+%28Geological+Association+of+Canada%29&rft.atitle=Chemistry+of+sedimentary+rocks+at+Gale+crater%2C+Mars%3B+alpha+particle+x-ray+spectrometer+%28APXS%29+constraints&rft.au=Thompson%2C+Lucy+M%3BGellert%2C+Raf%3BSchmidt%2C+Mariek+E%3BBerger%2C+Jeff+A%3BBoyd%2C+Nick%3BElliott%2C+Beverley%3BPavri%2C+Betina%3BPerrett%2C+Glynis+M%3BSpray%2C+John+G%3BVan+Bommel%2C+Scott%3BYen%2C+Albert%3BAnonymous&rft.aulast=Thompson&rft.aufirst=Lucy&rft.date=2015-01-01&rft.volume=38&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstract+Volume+%28Geological+Association+of+Canada%29&rft.issn=17166098&rft_id=info:doi/ L2 - http://www.gac.ca/activities/ LA - English DB - GeoRef N1 - Conference title - Joint Assembly of the American Geophysical Union, Geological Association of Canada, Mineralogical Association of Canada, and Canadian Geophysical Union N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - ON N1 - Last updated - 2017-01-24 ER - TY - JOUR T1 - A full martian year of atmospheric monitoring movies from Gale Crater AN - 1861082325; 763017-42 JF - Abstract Volume (Geological Association of Canada) AU - Kloos, Jacob Lawrence AU - Moores, John AU - Francis, Raymond AU - Lemmon, Mark T AU - De La Torre Juarez, Manuel AU - Kass, David M AU - Haberle, Robert Michael AU - Martin-torres, Javier AU - Zorzano, Maria-Paz AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 SP - Abstract no34387 File4A EP - 0253 PB - Geological Association of Canada, Waterloo, ON VL - 38 SN - 1716-6098, 1716-6098 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861082325?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstract+Volume+%28Geological+Association+of+Canada%29&rft.atitle=A+full+martian+year+of+atmospheric+monitoring+movies+from+Gale+Crater&rft.au=Kloos%2C+Jacob+Lawrence%3BMoores%2C+John%3BFrancis%2C+Raymond%3BLemmon%2C+Mark+T%3BDe+La+Torre+Juarez%2C+Manuel%3BKass%2C+David+M%3BHaberle%2C+Robert+Michael%3BMartin-torres%2C+Javier%3BZorzano%2C+Maria-Paz%3BAnonymous&rft.aulast=Kloos&rft.aufirst=Jacob&rft.date=2015-01-01&rft.volume=38&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstract+Volume+%28Geological+Association+of+Canada%29&rft.issn=17166098&rft_id=info:doi/ L2 - http://www.gac.ca/activities/ LA - English DB - GeoRef N1 - Conference title - Joint Assembly of the American Geophysical Union, Geological Association of Canada, Mineralogical Association of Canada, and Canadian Geophysical Union N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - ON N1 - Last updated - 2017-01-24 ER - TY - JOUR T1 - Seasonal valatile transport and plumes on Pluto AN - 1861082320; 763017-53 JF - Abstract Volume (Geological Association of Canada) AU - Buratti, Bonnie J AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 SP - Abstract no34558 File4A EP - 0265 PB - Geological Association of Canada, Waterloo, ON VL - 38 SN - 1716-6098, 1716-6098 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861082320?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstract+Volume+%28Geological+Association+of+Canada%29&rft.atitle=Seasonal+valatile+transport+and+plumes+on+Pluto&rft.au=Buratti%2C+Bonnie+J%3BAnonymous&rft.aulast=Buratti&rft.aufirst=Bonnie&rft.date=2015-01-01&rft.volume=38&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstract+Volume+%28Geological+Association+of+Canada%29&rft.issn=17166098&rft_id=info:doi/ L2 - http://www.gac.ca/activities/ LA - English DB - GeoRef N1 - Conference title - Joint Assembly of the American Geophysical Union, Geological Association of Canada, Mineralogical Association of Canada, and Canadian Geophysical Union N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - ON N1 - Last updated - 2017-01-24 ER - TY - JOUR T1 - Emplacement of volcanic domes on Venus AN - 1861082286; 763017-67 JF - Abstract Volume (Geological Association of Canada) AU - Quick, Lynnae C AU - Glaze, Lori Sherea AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 SP - Abstract no36124 File2A EP - 06 PB - Geological Association of Canada, Waterloo, ON VL - 38 SN - 1716-6098, 1716-6098 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861082286?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstract+Volume+%28Geological+Association+of+Canada%29&rft.atitle=Emplacement+of+volcanic+domes+on+Venus&rft.au=Quick%2C+Lynnae+C%3BGlaze%2C+Lori+Sherea%3BAnonymous&rft.aulast=Quick&rft.aufirst=Lynnae&rft.date=2015-01-01&rft.volume=38&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstract+Volume+%28Geological+Association+of+Canada%29&rft.issn=17166098&rft_id=info:doi/ L2 - http://www.gac.ca/activities/ LA - English DB - GeoRef N1 - Conference title - Joint Assembly of the American Geophysical Union, Geological Association of Canada, Mineralogical Association of Canada, and Canadian Geophysical Union N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - ON N1 - Last updated - 2017-01-24 ER - TY - JOUR T1 - Early evolution of Earth-like planets AN - 1861081562; 763022-25 JF - Abstract Volume (Geological Association of Canada) AU - O'Neill, Craig AU - Zhang, Siqi AU - Marchi, Simone AU - Wasiliev, Jonathon AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 SP - Abstract no34049 File1A EP - 01 PB - Geological Association of Canada, Waterloo, ON VL - 38 SN - 1716-6098, 1716-6098 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861081562?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstract+Volume+%28Geological+Association+of+Canada%29&rft.atitle=Early+evolution+of+Earth-like+planets&rft.au=O%27Neill%2C+Craig%3BZhang%2C+Siqi%3BMarchi%2C+Simone%3BWasiliev%2C+Jonathon%3BAnonymous&rft.aulast=O%27Neill&rft.aufirst=Craig&rft.date=2015-01-01&rft.volume=38&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstract+Volume+%28Geological+Association+of+Canada%29&rft.issn=17166098&rft_id=info:doi/ L2 - http://www.gac.ca/activities/ LA - English DB - GeoRef N1 - Conference title - Joint assembly of the American Geophysical Union, Geological Association of Canada, Mineralogical Association of Canada, and Canadian Geophysical Union N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - ON N1 - Last updated - 2017-01-24 ER - TY - JOUR T1 - Fresh shallow valleys in Northern Arabia terra, Mars; implications for the post-noachian climate AN - 1861081516; 763017-59 JF - Abstract Volume (Geological Association of Canada) AU - Wilson, Sharon A AU - Howard, Alan D AU - Moore, Jeffrey M AU - Grant, John A AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 SP - Abstract no34304 File1A EP - 05 PB - Geological Association of Canada, Waterloo, ON VL - 38 SN - 1716-6098, 1716-6098 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861081516?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstract+Volume+%28Geological+Association+of+Canada%29&rft.atitle=Fresh+shallow+valleys+in+Northern+Arabia+terra%2C+Mars%3B+implications+for+the+post-noachian+climate&rft.au=Wilson%2C+Sharon+A%3BHoward%2C+Alan+D%3BMoore%2C+Jeffrey+M%3BGrant%2C+John+A%3BAnonymous&rft.aulast=Wilson&rft.aufirst=Sharon&rft.date=2015-01-01&rft.volume=38&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstract+Volume+%28Geological+Association+of+Canada%29&rft.issn=17166098&rft_id=info:doi/ L2 - http://www.gac.ca/activities/ LA - English DB - GeoRef N1 - Conference title - Joint Assembly of the American Geophysical Union, Geological Association of Canada, Mineralogical Association of Canada, and Canadian Geophysical Union N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - ON N1 - Last updated - 2017-01-24 ER - TY - JOUR T1 - MAVEN observations of magnetic reconnection on the dayside Martian magnetosphere AN - 1859789365; 2017-005191 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - DiBraccio, Gina A AU - Espley, J R AU - Connerney, J E AU - Brain, David A AU - Halekas, J S AU - Mitchell, D L AU - Harada, Y AU - Hara, T AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 2125 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - ionosphere KW - MAVEN Mission KW - solar wind KW - magnetosphere KW - magnetization KW - atmosphere KW - Mars KW - interplanetary magnetic field KW - magnetometers KW - magnetic field KW - terrestrial planets KW - planets KW - induced magnetization KW - atmospheric escape KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1859789365?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=MAVEN+observations+of+magnetic+reconnection+on+the+dayside+Martian+magnetosphere&rft.au=DiBraccio%2C+Gina+A%3BEspley%2C+J+R%3BConnerney%2C+J+E%3BBrain%2C+David+A%3BHalekas%2C+J+S%3BMitchell%2C+D+L%3BHarada%2C+Y%3BHara%2C+T%3BAnonymous&rft.aulast=DiBraccio&rft.aufirst=Gina&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/2125.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. N1 - Date revised - 2017-01-01 N1 - Number of references - 14 N1 - PubXState - TX N1 - SuppNotes - Accessed on Aug. 3, 2016 N1 - Last updated - 2017-01-19 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - atmosphere; atmospheric escape; induced magnetization; interplanetary magnetic field; ionosphere; magnetic field; magnetization; magnetometers; magnetosphere; Mars; MAVEN Mission; planets; solar wind; terrestrial planets ER - TY - JOUR T1 - MAVEN observations of the aftermath of Comet Siding Spring's meteor shower AN - 1859789233; 2017-005189 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Schneider, Nick M AU - Stewart, A I F AU - McClintock, W E AU - Mahaffy, Paul R AU - Benna, M AU - Deighan, J AU - Jain, S K AU - Elrod, M AU - Chaffin, Michael H AU - Crismani, Matteo AU - Plane, J AU - Sanchez, J D C AU - Yelle, R V AU - Lo, D AU - Evans, J S AU - Stevens, M H AU - Combi, M AU - Clarke, J T AU - Holsclaw, G M AU - Montmessin, F AU - Jakosky, B M AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 2804 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - Siding Spring Comet KW - Oort Cloud KW - ionosphere KW - alkaline earth metals KW - MAVEN Mission KW - magnesium KW - atmosphere KW - Mars KW - ions KW - iron KW - comae KW - emission spectra KW - terrestrial planets KW - planets KW - comets KW - metals KW - meteor showers KW - ultraviolet spectra KW - spectra KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1859789233?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=MAVEN+observations+of+the+aftermath+of+Comet+Siding+Spring%27s+meteor+shower&rft.au=Schneider%2C+Nick+M%3BStewart%2C+A+I+F%3BMcClintock%2C+W+E%3BMahaffy%2C+Paul+R%3BBenna%2C+M%3BDeighan%2C+J%3BJain%2C+S+K%3BElrod%2C+M%3BChaffin%2C+Michael+H%3BCrismani%2C+Matteo%3BPlane%2C+J%3BSanchez%2C+J+D+C%3BYelle%2C+R+V%3BLo%2C+D%3BEvans%2C+J+S%3BStevens%2C+M+H%3BCombi%2C+M%3BClarke%2C+J+T%3BHolsclaw%2C+G+M%3BMontmessin%2C+F%3BJakosky%2C+B+M%3BAnonymous&rft.aulast=Schneider&rft.aufirst=Nick&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/2804.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. N1 - Date revised - 2017-01-01 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Aug. 2, 2016 N1 - Last updated - 2017-01-19 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - alkaline earth metals; atmosphere; comae; comets; emission spectra; ionosphere; ions; iron; magnesium; Mars; MAVEN Mission; metals; meteor showers; Oort Cloud; planets; Siding Spring Comet; spectra; terrestrial planets; ultraviolet spectra ER - TY - JOUR T1 - Structure of the Martian ionosphere and atmospheric loss; MAVEN STATIC first results AN - 1859789121; 2017-005138 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - McFadden, J P AU - Livi, R AU - Luhmann, J G AU - Connerney, Jack E P AU - Mitchell, D L (super AU - Mazelle, C AU - Andersson, Laila AU - Jakosky, B M AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 2899 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - ionosphere KW - MAVEN Mission KW - density KW - altitude KW - solar wind KW - atmosphere KW - Mars KW - ions KW - temperature KW - terrestrial planets KW - pickup ions KW - planets KW - hydrogen KW - composition KW - Suprathermal and Thermal Ion Composition instrument KW - STATIC instrument KW - atmospheric escape KW - instruments KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1859789121?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Structure+of+the+Martian+ionosphere+and+atmospheric+loss%3B+MAVEN+STATIC+first+results&rft.au=McFadden%2C+J+P%3BLivi%2C+R%3BLuhmann%2C+J+G%3BConnerney%2C+Jack+E+P%3BMitchell%2C+D+L+%28super%3BMazelle%2C+C%3BAndersson%2C+Laila%3BJakosky%2C+B+M%3BAnonymous&rft.aulast=McFadden&rft.aufirst=J&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/2899.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. N1 - Date revised - 2017-01-01 N1 - Number of references - 2 N1 - PubXState - TX N1 - SuppNotes - Accessed on June 29, 2016 N1 - Last updated - 2017-01-19 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - altitude; atmosphere; atmospheric escape; composition; density; hydrogen; instruments; ionosphere; ions; Mars; MAVEN Mission; pickup ions; planets; solar wind; STATIC instrument; Suprathermal and Thermal Ion Composition instrument; temperature; terrestrial planets ER - TY - JOUR T1 - Early MAVEN results on the Mars upper atmosphere and atmospheric loss to space AN - 1859788611; 2017-005128 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Jakosky, B M AU - Lin, R P AU - Grebowsky, J M AU - Luhmann, J G AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 1370 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - Siding Spring Comet KW - ionosphere KW - MAVEN Mission KW - solar wind KW - atmosphere KW - Mars KW - carbon dioxide KW - terrestrial planets KW - planets KW - objectives KW - comets KW - spacecraft KW - Mars Atmosphere and Volatile Evolution Mission KW - orbital observations KW - instruments KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1859788611?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Early+MAVEN+results+on+the+Mars+upper+atmosphere+and+atmospheric+loss+to+space&rft.au=Jakosky%2C+B+M%3BLin%2C+R+P%3BGrebowsky%2C+J+M%3BLuhmann%2C+J+G%3BAnonymous&rft.aulast=Jakosky&rft.aufirst=B&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/1370.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. N1 - Date revised - 2017-01-01 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on June 27, 2016 N1 - Last updated - 2017-01-19 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - atmosphere; carbon dioxide; comets; instruments; ionosphere; Mars; Mars Atmosphere and Volatile Evolution Mission; MAVEN Mission; objectives; orbital observations; planets; Siding Spring Comet; solar wind; spacecraft; terrestrial planets ER - TY - JOUR T1 - Characterization of the Martian thermosphere using MAVEN accelerometer and reaction wheel datasets; early mission results AN - 1859788606; 2017-005135 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Zurek, R W AU - Tolson, R H AU - Bougher, S W AU - Baird, D AU - Kass, D AU - Smith, M AU - Cantor, B AU - Demcak, S AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 2039 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - terrestrial planets KW - planets KW - ionosphere KW - thermosphere KW - MAVEN Mission KW - spacecraft KW - accelerometers KW - atmosphere KW - Mars KW - instruments KW - exosphere KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1859788606?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Characterization+of+the+Martian+thermosphere+using+MAVEN+accelerometer+and+reaction+wheel+datasets%3B+early+mission+results&rft.au=Zurek%2C+R+W%3BTolson%2C+R+H%3BBougher%2C+S+W%3BBaird%2C+D%3BKass%2C+D%3BSmith%2C+M%3BCantor%2C+B%3BDemcak%2C+S%3BAnonymous&rft.aulast=Zurek&rft.aufirst=R&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/2039.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. N1 - Date revised - 2017-01-01 N1 - Number of references - 4 N1 - PubXState - TX N1 - SuppNotes - Accessed on June 29, 2016 N1 - Last updated - 2017-01-19 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - accelerometers; atmosphere; exosphere; instruments; ionosphere; Mars; MAVEN Mission; planets; spacecraft; terrestrial planets; thermosphere ER - TY - JOUR T1 - Na, K-rich rim around a chondrule in unequilibrated ordinary chondrite LEW 86018 (L3.1) AN - 1855321352; 2017-002427 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Mishra, R K AU - Simon, J I AU - Ross, D K AU - Needham, A W AU - Messenger, S AU - Keller, L P AU - Han, J AU - Marhas, K K AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 2994 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - ordinary chondrites KW - stony meteorites KW - unequilibrated ordinary chondrites KW - Lewis Cliff Meteorites KW - alkali metals KW - sodium KW - metasomatism KW - metamorphism KW - aqueous alteration KW - meteorites KW - mineral composition KW - metals KW - chondrules KW - potassium KW - petrography KW - chondrites KW - LEW 86018 KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1855321352?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Na%2C+K-rich+rim+around+a+chondrule+in+unequilibrated+ordinary+chondrite+LEW+86018+%28L3.1%29&rft.au=Mishra%2C+R+K%3BSimon%2C+J+I%3BRoss%2C+D+K%3BNeedham%2C+A+W%3BMessenger%2C+S%3BKeller%2C+L+P%3BHan%2C+J%3BMarhas%2C+K+K%3BAnonymous&rft.aulast=Mishra&rft.aufirst=R&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.hou.usra.edu/meetings/lpsc2015/pdf/2994.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. N1 - Date revised - 2017-01-01 N1 - Number of references - 7 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Mar. 22, 2016 N1 - Last updated - 2017-01-05 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - alkali metals; aqueous alteration; chondrites; chondrules; LEW 86018; Lewis Cliff Meteorites; metals; metamorphism; metasomatism; meteorites; mineral composition; ordinary chondrites; petrography; potassium; sodium; stony meteorites; unequilibrated ordinary chondrites ER - TY - JOUR T1 - Complete TEM-tomography; 3D structure of GEMS cluster AN - 1855320289; 2017-002450 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Matsuno, J AU - Miyake, A AU - Tsuchiyama, A AU - Messenger, S AU - Nakamura-Messenger, Keiko AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 2177 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - transmission electron microscopy KW - tomography KW - methods KW - aggregate KW - electron microscopy data KW - interplanetary dust KW - TEM data KW - iron KW - focused ion beam KW - cosmic dust KW - computed tomography KW - iron sulfides KW - glass with embedded metal and sulfide grains KW - metals KW - inclusions KW - computed tomography data KW - sulfides KW - GEMS grains KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1855320289?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Complete+TEM-tomography%3B+3D+structure+of+GEMS+cluster&rft.au=Matsuno%2C+J%3BMiyake%2C+A%3BTsuchiyama%2C+A%3BMessenger%2C+S%3BNakamura-Messenger%2C+Keiko%3BAnonymous&rft.aulast=Matsuno&rft.aufirst=J&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.hou.usra.edu/meetings/lpsc2015/pdf/2177.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. N1 - Date revised - 2017-01-01 N1 - Number of references - 10 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Mar. 29, 2016 N1 - Last updated - 2017-01-05 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - aggregate; computed tomography; computed tomography data; cosmic dust; electron microscopy data; focused ion beam; GEMS grains; glass with embedded metal and sulfide grains; inclusions; interplanetary dust; iron; iron sulfides; metals; methods; sulfides; TEM data; tomography; transmission electron microscopy ER - TY - JOUR T1 - Resolving the spatial and depth dependent hydrogen distribution within lunar permanently shaded regions using the Lunar Polar Low-Altitude Neutron Experiment AN - 1840621494; 2016-095437 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Lawrence, David J AU - Elphic, Richard C AU - Miller, Richard S AU - Peplowski, Patrick N AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 2235 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - Lunar PLANE mission concept KW - polar regions KW - Lunar Polar Low-Altitude Neutron Experiment KW - Moon KW - Lunar Reconnaissance Orbiter KW - altitude KW - Lunar Prospector Program KW - Lunar Exploration Neutron Detector KW - distribution KW - temperature KW - volatiles KW - neutrons KW - neutron probe KW - hydrogen KW - permanently shadowed regions KW - low temperature KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1840621494?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Resolving+the+spatial+and+depth+dependent+hydrogen+distribution+within+lunar+permanently+shaded+regions+using+the+Lunar+Polar+Low-Altitude+Neutron+Experiment&rft.au=Lawrence%2C+David+J%3BElphic%2C+Richard+C%3BMiller%2C+Richard+S%3BPeplowski%2C+Patrick+N%3BAnonymous&rft.aulast=Lawrence&rft.aufirst=David&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/2235.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 21 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on June 7, 2016 N1 - Last updated - 2016-11-17 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - altitude; distribution; hydrogen; low temperature; Lunar Exploration Neutron Detector; Lunar PLANE mission concept; Lunar Polar Low-Altitude Neutron Experiment; Lunar Prospector Program; Lunar Reconnaissance Orbiter; Moon; neutron probe; neutrons; permanently shadowed regions; polar regions; temperature; volatiles ER - TY - JOUR T1 - Use of the Mars Odyssey high purity germanium (HPGe) gamma ray detector design for orbital asteroid measurements AN - 1840621224; 2016-095433 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Parsons, Ann M AU - Boynton, William V AU - Evans, Larry G AU - Hamara, D AU - Harshman, K AU - Lim, Lucy F AU - Starr, Richard D AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 2655 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - asteroids KW - gamma rays KW - gamma-ray spectroscopy KW - orbital observations KW - spectroscopy KW - Mars Odyssey KW - instruments KW - design KW - remote sensing KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1840621224?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Use+of+the+Mars+Odyssey+high+purity+germanium+%28HPGe%29+gamma+ray+detector+design+for+orbital+asteroid+measurements&rft.au=Parsons%2C+Ann+M%3BBoynton%2C+William+V%3BEvans%2C+Larry+G%3BHamara%2C+D%3BHarshman%2C+K%3BLim%2C+Lucy+F%3BStarr%2C+Richard+D%3BAnonymous&rft.aulast=Parsons&rft.aufirst=Ann&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/2655.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 3 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on June 6, 2016 N1 - Last updated - 2016-11-17 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - asteroids; design; gamma rays; gamma-ray spectroscopy; instruments; Mars Odyssey; orbital observations; remote sensing; spectroscopy ER - TY - JOUR T1 - OSIRIS-REx is a pathfinder for contamination control for cost controlled missions in the 21st century AN - 1840620748; 2016-095391 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Dworkin, J P AU - Adelman, L AU - Ajluni, T M AU - Andronikov, A V AU - Bartels, A E AU - Ballou, D M AU - Beshore, E AU - Bierhaus, E B AU - Boynton, William V AU - Brucato, J R AU - Burton, A S AU - Callahan, M P AU - Clark, B C AU - Connolly, H C, Jr AU - Elsila, J E AU - Enos, H L AU - Everett, D F AU - Franchi, I A AU - Fust, J S AU - Hendershot, J E AU - Glavin, D P AU - Harris, J W AU - Hildebrand, A R AU - Jayne, G AU - Jenkens, R W AU - Kuhns, R M AU - Lauretta, Dante S AU - Ladewig, J V AU - Lorentson, C C AU - Marshall, J R AU - Matthias, L L AU - Messenger, S R AU - Mink, R G AU - Moore, J AU - Nakamura-Messenger, K AU - Nuth, J A, III AU - Reigle, C A AU - Righter, K E AU - Rizk, B AU - Roher, W D AU - Russell, J F AU - Sandford, S A AU - Sovinski, M F AU - Vellinga, J M AU - Walker, M S AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 1147 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - B-type asteroids KW - near-Earth objects KW - asteroids KW - near-Earth asteroids KW - sample return KW - OSIRIS-REx Mission KW - Bennu Asteroid KW - simulation KW - cost KW - evaluation KW - meteorites KW - organic compounds KW - organic acids KW - objectives KW - planning KW - amino acids KW - natural analogs KW - contamination control KW - regolith KW - Origins, Spectral Interpretation, Resource Identification, and Security Regolith Explorer KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1840620748?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=OSIRIS-REx+is+a+pathfinder+for+contamination+control+for+cost+controlled+missions+in+the+21st+century&rft.au=Dworkin%2C+J+P%3BAdelman%2C+L%3BAjluni%2C+T+M%3BAndronikov%2C+A+V%3BBartels%2C+A+E%3BBallou%2C+D+M%3BBeshore%2C+E%3BBierhaus%2C+E+B%3BBoynton%2C+William+V%3BBrucato%2C+J+R%3BBurton%2C+A+S%3BCallahan%2C+M+P%3BClark%2C+B+C%3BConnolly%2C+H+C%2C+Jr%3BElsila%2C+J+E%3BEnos%2C+H+L%3BEverett%2C+D+F%3BFranchi%2C+I+A%3BFust%2C+J+S%3BHendershot%2C+J+E%3BGlavin%2C+D+P%3BHarris%2C+J+W%3BHildebrand%2C+A+R%3BJayne%2C+G%3BJenkens%2C+R+W%3BKuhns%2C+R+M%3BLauretta%2C+Dante+S%3BLadewig%2C+J+V%3BLorentson%2C+C+C%3BMarshall%2C+J+R%3BMatthias%2C+L+L%3BMessenger%2C+S+R%3BMink%2C+R+G%3BMoore%2C+J%3BNakamura-Messenger%2C+K%3BNuth%2C+J+A%2C+III%3BReigle%2C+C+A%3BRighter%2C+K+E%3BRizk%2C+B%3BRoher%2C+W+D%3BRussell%2C+J+F%3BSandford%2C+S+A%3BSovinski%2C+M+F%3BVellinga%2C+J+M%3BWalker%2C+M+S%3BAnonymous&rft.aulast=Dworkin&rft.aufirst=J&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/10.1111%2Fmaps.12206 L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/1147.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 7 N1 - PubXState - TX N1 - Document feature - 2 tables N1 - SuppNotes - Accessed on May 17, 2016 N1 - Last updated - 2016-11-17 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - amino acids; asteroids; B-type asteroids; Bennu Asteroid; contamination control; cost; evaluation; meteorites; natural analogs; near-Earth asteroids; near-Earth objects; objectives; organic acids; organic compounds; Origins, Spectral Interpretation, Resource Identification, and Security Regolith Explorer; OSIRIS-REx Mission; planning; regolith; sample return; simulation ER - TY - JOUR T1 - High sensitivity subsurface elemental composition measurements with PING AN - 1840620550; 2016-095434 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Parsons, Ann M AU - Evans, Larry G AU - Karunatillake, S AU - McClanahan, T P AU - Moersch, J E AU - Nowicki, S F AU - Schweitzer, J S AU - Starr, Richard D AU - Squyres, S AU - Taylor, G J AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 2365 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - chemical analysis KW - PING instrument KW - gamma-ray spectroscopy KW - Mars KW - simulation KW - terrestrial planets KW - planets KW - major elements KW - neutron probe KW - metals KW - Mars 2020 Mission KW - Probing In situ with Neutrons and Gamma rays instrument KW - thorium KW - uranium KW - spectroscopy KW - actinides KW - instruments KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1840620550?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=High+sensitivity+subsurface+elemental+composition+measurements+with+PING&rft.au=Parsons%2C+Ann+M%3BEvans%2C+Larry+G%3BKarunatillake%2C+S%3BMcClanahan%2C+T+P%3BMoersch%2C+J+E%3BNowicki%2C+S+F%3BSchweitzer%2C+J+S%3BStarr%2C+Richard+D%3BSquyres%2C+S%3BTaylor%2C+G+J%3BAnonymous&rft.aulast=Parsons&rft.aufirst=Ann&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/2365.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 8 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on June 7, 2016 N1 - Last updated - 2016-11-17 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - actinides; chemical analysis; gamma-ray spectroscopy; instruments; major elements; Mars; Mars 2020 Mission; metals; neutron probe; PING instrument; planets; Probing In situ with Neutrons and Gamma rays instrument; simulation; spectroscopy; terrestrial planets; thorium; uranium ER - TY - JOUR T1 - The Shortwave ImageR and Spectrometer for Europa (SIRSE) AN - 1840619935; 2016-095410 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Simon, A A AU - Reuter, D AU - Olkin, C B AU - Stern, S A AU - Emery, J AU - Grundy, W AU - Hudson, R AU - Rathbun, J AU - Schenk, P AU - Vervack, R AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 1013 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - surface properties KW - icy satellites KW - Europa Satellite KW - Shortwave Imager and Spectrometer for Europa KW - mapping KW - landforms KW - landing sites KW - Galilean satellites KW - topography KW - objectives KW - composition KW - satellites KW - instruments KW - ice shells KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1840619935?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=The+Shortwave+ImageR+and+Spectrometer+for+Europa+%28SIRSE%29&rft.au=Simon%2C+A+A%3BReuter%2C+D%3BOlkin%2C+C+B%3BStern%2C+S+A%3BEmery%2C+J%3BGrundy%2C+W%3BHudson%2C+R%3BRathbun%2C+J%3BSchenk%2C+P%3BVervack%2C+R%3BAnonymous&rft.aulast=Simon&rft.aufirst=A&rft.date=2015-01-01&rft.volume=49&rft.issue=9&rft.spage=1562&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fmaps.12220 L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/1013.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on May 26, 2016 N1 - Last updated - 2016-11-17 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - composition; Europa Satellite; Galilean satellites; ice shells; icy satellites; instruments; landforms; landing sites; mapping; objectives; satellites; Shortwave Imager and Spectrometer for Europa; surface properties; topography ER - TY - JOUR T1 - Using dust from asteroids as regolith microsamples AN - 1840619773; 2016-095396 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Cohen, B A AU - Chabot, N L AU - Klima, R L AU - Ernst, C M AU - Rivkin, A S AU - Postberg, F AU - Sternovsky, Z AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 1991 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - silicates KW - alkaline earth metals KW - magnesium KW - Itokawa Asteroid KW - asteroids KW - Stardust Mission KW - clastic sediments KW - parent bodies KW - Monte Carlo analysis KW - statistical analysis KW - simulation KW - iron KW - meteorites KW - mineral composition KW - comets KW - metals KW - Hayabusa Mission KW - dust KW - classification KW - sediments KW - Wild 2 Comet KW - S-type asteroids KW - regolith KW - 05B:Petrology of meteorites and tektites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1840619773?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Using+dust+from+asteroids+as+regolith+microsamples&rft.au=Cohen%2C+B+A%3BChabot%2C+N+L%3BKlima%2C+R+L%3BErnst%2C+C+M%3BRivkin%2C+A+S%3BPostberg%2C+F%3BSternovsky%2C+Z%3BAnonymous&rft.aulast=Cohen&rft.aufirst=B&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/1991.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 15 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on May 19, 2016 N1 - Last updated - 2016-11-17 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - alkaline earth metals; asteroids; classification; clastic sediments; comets; dust; Hayabusa Mission; iron; Itokawa Asteroid; magnesium; metals; meteorites; mineral composition; Monte Carlo analysis; parent bodies; regolith; S-type asteroids; sediments; silicates; simulation; Stardust Mission; statistical analysis; Wild 2 Comet ER - TY - JOUR T1 - Towards building an automated rock classifier for planetary rover missions AN - 1840619453; 2016-095390 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Valenzuela, L A AU - Freeman, P M AU - Gulick, Virginia C AU - Ishikawa, S T AU - Bass, S M AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 3009 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - silicates KW - plagioclase KW - K-feldspar KW - principal components analysis KW - igneous rocks KW - statistical analysis KW - data processing KW - non-destructive methods KW - automated analysis KW - Raman spectroscopy KW - fast Fourier transforms KW - artificial intelligence KW - mineral composition KW - alkali feldspar KW - identification KW - Fourier analysis KW - classification KW - framework silicates KW - neural networks KW - spectroscopy KW - feldspar group KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1840619453?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Towards+building+an+automated+rock+classifier+for+planetary+rover+missions&rft.au=Valenzuela%2C+L+A%3BFreeman%2C+P+M%3BGulick%2C+Virginia+C%3BIshikawa%2C+S+T%3BBass%2C+S+M%3BAnonymous&rft.aulast=Valenzuela&rft.aufirst=L&rft.date=2015-01-01&rft.volume=49&rft.issue=9&rft.spage=1548&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fmaps.12125 L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/3009.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 3 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on May 17, 2016 N1 - Last updated - 2016-11-17 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - alkali feldspar; artificial intelligence; automated analysis; classification; data processing; fast Fourier transforms; feldspar group; Fourier analysis; framework silicates; identification; igneous rocks; K-feldspar; mineral composition; neural networks; non-destructive methods; plagioclase; principal components analysis; Raman spectroscopy; silicates; spectroscopy; statistical analysis ER - TY - JOUR T1 - Developing a relationship between LIBS ablation and pit volume for in situ dating of geologic samples AN - 1840618613; 2016-095427 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Devimes, Damien AU - Cohen, B A AU - Gillot, P Y AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 1406 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - methods KW - experimental studies KW - laser-induced breakdown spectroscopy KW - laser methods KW - in situ KW - pits KW - statistical analysis KW - standard deviation KW - laser ablation KW - Mars KW - emission spectroscopy KW - terrestrial planets KW - planets KW - laboratory studies KW - K/Ar KW - volume KW - absolute age KW - heterogeneity KW - spectroscopy KW - 03:Geochronology KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1840618613?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Developing+a+relationship+between+LIBS+ablation+and+pit+volume+for+in+situ+dating+of+geologic+samples&rft.au=Devimes%2C+Damien%3BCohen%2C+B+A%3BGillot%2C+P+Y%3BAnonymous&rft.aulast=Devimes&rft.aufirst=Damien&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/1406.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 9 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on June 1, 2016 N1 - Last updated - 2016-11-17 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - absolute age; emission spectroscopy; experimental studies; heterogeneity; in situ; K/Ar; laboratory studies; laser ablation; laser methods; laser-induced breakdown spectroscopy; Mars; methods; pits; planets; spectroscopy; standard deviation; statistical analysis; terrestrial planets; volume ER - TY - JOUR T1 - Mars Organic Molecule Analyzer (MOMA) mass spectrometer status and science operations on the ExoMars rover AN - 1840618538; 2016-095438 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Brinckerhoff, William B AU - Danell, Ryan M AU - van Ameron, H W AU - Pinnick, Veronica T AU - Arevalo, Ricardo D, Jr AU - Hovmand, Lars AU - Li, Xiang AU - Chu, Zhiping AU - Grubisic, Andrej AU - Mahaffy, Paul R AU - Goesmann, Fred AU - Steininger, Harald AU - Goetz, Walter AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 2579 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - Mars Organic Molecule Analyzer KW - ExoMars Mission KW - chromatography KW - chemical analysis KW - astrobiology KW - mass spectroscopy KW - Mars KW - calibration KW - terrestrial planets KW - planets KW - gas chromatography KW - organic compounds KW - pyrolysis KW - planning KW - spectroscopy KW - instruments KW - design KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1840618538?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Mars+Organic+Molecule+Analyzer+%28MOMA%29+mass+spectrometer+status+and+science+operations+on+the+ExoMars+rover&rft.au=Brinckerhoff%2C+William+B%3BDanell%2C+Ryan+M%3Bvan+Ameron%2C+H+W%3BPinnick%2C+Veronica+T%3BArevalo%2C+Ricardo+D%2C+Jr%3BHovmand%2C+Lars%3BLi%2C+Xiang%3BChu%2C+Zhiping%3BGrubisic%2C+Andrej%3BMahaffy%2C+Paul+R%3BGoesmann%2C+Fred%3BSteininger%2C+Harald%3BGoetz%2C+Walter%3BAnonymous&rft.aulast=Brinckerhoff&rft.aufirst=William&rft.date=2015-01-01&rft.volume=71&rft.issue=9&rft.spage=3484&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+Atmospheric+Sciences&rft.issn=00224928&rft_id=info:doi/10.1175%2FJAS-D-13-0336.1 L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/2579.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 5 N1 - PubXState - TX N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Accessed on June 7, 2016 N1 - Last updated - 2016-11-17 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - astrobiology; calibration; chemical analysis; chromatography; design; ExoMars Mission; gas chromatography; instruments; Mars; Mars Organic Molecule Analyzer; mass spectroscopy; organic compounds; planets; planning; pyrolysis; spectroscopy; terrestrial planets ER - TY - JOUR T1 - Lunar and planetary surface water distribution systematics via deep space CubeSat orbiter with compact broadband IR instrument AN - 1840618196; 2016-095442 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Clark, P E AU - Petro, N AU - Reuter, D AU - MacDowall, R AU - Mandell, A AU - Patel, D AU - Banks, S AU - Farrell, W AU - Malphrus, B AU - Cox, R AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 1108 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - water KW - solar system KW - Broadband InfraRed Compact, High-resolution Exploration Spectrometer KW - technology KW - Moon KW - CubeSat KW - surface water KW - satellite methods KW - concepts KW - hydroxyl ion KW - volatiles KW - organic compounds KW - infrared spectroscopy KW - orbital observations KW - spectroscopy KW - instruments KW - design KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1840618196?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Lunar+and+planetary+surface+water+distribution+systematics+via+deep+space+CubeSat+orbiter+with+compact+broadband+IR+instrument&rft.au=Clark%2C+P+E%3BPetro%2C+N%3BReuter%2C+D%3BMacDowall%2C+R%3BMandell%2C+A%3BPatel%2C+D%3BBanks%2C+S%3BFarrell%2C+W%3BMalphrus%2C+B%3BCox%2C+R%3BAnonymous&rft.aulast=Clark&rft.aufirst=P&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/1108.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 4 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on June 8, 2016 N1 - Last updated - 2016-11-17 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Broadband InfraRed Compact, High-resolution Exploration Spectrometer; concepts; CubeSat; design; hydroxyl ion; infrared spectroscopy; instruments; Moon; orbital observations; organic compounds; satellite methods; solar system; spectroscopy; surface water; technology; volatiles; water ER - TY - JOUR T1 - A sample sifter for the proposed Icebreaker Mars mission AN - 1840617968; 2016-095387 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Willson, David AU - Lemke, L G AU - Stoker, C R AU - Dave, A AU - McKay, C P AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 2503 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - soils KW - grain size KW - Mars KW - cuttings KW - depth KW - terrestrial planets KW - planets KW - sampling KW - ice KW - testing KW - Icebreaker Mission KW - regolith KW - instruments KW - filters KW - design KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1840617968?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Selection+of+DNA+aptamers+against+uropathogenic+Escherichia+coli+NSM59+by+quantitative+PCR+controlled+Cell-SELEX&rft.au=Savory%2C+Nasa%3BNzakizwanayo%2C+Jonathan%3BAbe%2C+Koichi%3BYoshida%2C+Wataru%3BFerri%2C+Stefano%3BDedi%2C+Cinzia%3BJones%2C+Brian+V%3BIkebukuro%2C+Kazunori&rft.aulast=Savory&rft.aufirst=Nasa&rft.date=2014-09-01&rft.volume=104&rft.issue=&rft.spage=94&rft.isbn=&rft.btitle=&rft.title=Journal+of+Microbiological+Methods&rft.issn=01677012&rft_id=info:doi/10.1016%2Fj.mimet.2014.06.016 L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/2503.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 7 N1 - PubXState - TX N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Accessed on May 16, 2016 N1 - Last updated - 2016-11-17 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - cuttings; depth; design; filters; grain size; ice; Icebreaker Mission; instruments; Mars; planets; regolith; sampling; soils; terrestrial planets; testing ER - TY - JOUR T1 - Mapping X-ray Fluorescence Spectrometer (Map-X) AN - 1840617588; 2016-095428 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Blake, David F AU - Sarrazin, P AU - Bristow, T AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 2274 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - methods KW - chemical analysis KW - development KW - X-ray fluorescence KW - optimization KW - Mapping X-ray Fluorescence Spectrometer KW - Map-X instrument KW - X-ray mapping KW - geometry KW - planets KW - X-rays KW - fluorescence KW - X-ray analysis KW - instruments KW - 04:Extraterrestrial geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1840617588?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Mapping+X-ray+Fluorescence+Spectrometer+%28Map-X%29&rft.au=Blake%2C+David+F%3BSarrazin%2C+P%3BBristow%2C+T%3BAnonymous&rft.aulast=Blake&rft.aufirst=David&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/2274.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 5 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on June 1, 2016 N1 - Last updated - 2016-11-17 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - chemical analysis; development; fluorescence; geometry; instruments; Map-X instrument; Mapping X-ray Fluorescence Spectrometer; methods; optimization; planets; X-ray analysis; X-ray fluorescence; X-ray mapping; X-rays ER - TY - JOUR T1 - PADME (Phobos and Deimos & Mars Environment); a proposed NASA Discovery Mission to investigate the two Moons of Mars AN - 1840616363; 2016-093450 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Lee, Pascal AU - Benna, Mehdi AU - Britt, Daniel AU - Colaprete, Anthony AU - Davis, Warren AU - Delory, Greg AU - Elphic, Richard C AU - Fulsang, Ejner AU - Genova, Anthony AU - Glavin, Daniel P AU - Grundy, William AU - Harris, William AU - Hermalyn, Brendan AU - Hine, Butler AU - Horanyi, Mihaly AU - Hamilton, Douglas AU - Johnson, Robert AU - Jones, Thomas AU - Kempf, Sasha AU - Lewis, Brian AU - Lim, Lucy AU - Mahaffy, Paul R AU - Marshall, John AU - Michel, Patrick AU - Mittlefehldt, David AU - Montez, Sam AU - Nguyen, Yung AU - Owens, Brandon AU - Pajola, Maurizio AU - Park, Ryan AU - Phillips, Cynthia AU - Plice, Laura AU - Poppe, Andrew R AU - Riedel, Joseph AU - Rivoldini, Attilo AU - Rosenblatt, Pascal AU - Schaible, Micah AU - Showalter, Mark AU - Smith, Heather AU - Sternovsky, Zoltan AU - Thomas, Peter AU - Yano, Hajime AU - Zolensky, Michael AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 2856 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - Phobos Satellite KW - surface properties KW - PADME KW - government agencies KW - Phobos and Deimos & Mars Environment mission concept KW - mass spectroscopy KW - Mars KW - concepts KW - terrestrial planets KW - planets KW - objectives KW - neutron probe KW - NASA KW - spacecraft KW - planetary interiors KW - composition KW - satellites KW - Deimos Satellite KW - spectroscopy KW - instruments KW - cameras KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1840616363?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=PADME+%28Phobos+and+Deimos+%26amp%3B+Mars+Environment%29%3B+a+proposed+NASA+Discovery+Mission+to+investigate+the+two+Moons+of+Mars&rft.au=Lee%2C+Pascal%3BBenna%2C+Mehdi%3BBritt%2C+Daniel%3BColaprete%2C+Anthony%3BDavis%2C+Warren%3BDelory%2C+Greg%3BElphic%2C+Richard+C%3BFulsang%2C+Ejner%3BGenova%2C+Anthony%3BGlavin%2C+Daniel+P%3BGrundy%2C+William%3BHarris%2C+William%3BHermalyn%2C+Brendan%3BHine%2C+Butler%3BHoranyi%2C+Mihaly%3BHamilton%2C+Douglas%3BJohnson%2C+Robert%3BJones%2C+Thomas%3BKempf%2C+Sasha%3BLewis%2C+Brian%3BLim%2C+Lucy%3BMahaffy%2C+Paul+R%3BMarshall%2C+John%3BMichel%2C+Patrick%3BMittlefehldt%2C+David%3BMontez%2C+Sam%3BNguyen%2C+Yung%3BOwens%2C+Brandon%3BPajola%2C+Maurizio%3BPark%2C+Ryan%3BPhillips%2C+Cynthia%3BPlice%2C+Laura%3BPoppe%2C+Andrew+R%3BRiedel%2C+Joseph%3BRivoldini%2C+Attilo%3BRosenblatt%2C+Pascal%3BSchaible%2C+Micah%3BShowalter%2C+Mark%3BSmith%2C+Heather%3BSternovsky%2C+Zoltan%3BThomas%2C+Peter%3BYano%2C+Hajime%3BZolensky%2C+Michael%3BAnonymous&rft.aulast=Lee&rft.aufirst=Pascal&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.hou.usra.edu/meetings/lpsc2015/pdf/2856.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 1 N1 - PubXState - TX N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Accessed on Sept. 8, 2016 N1 - Last updated - 2016-11-17 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - cameras; composition; concepts; Deimos Satellite; government agencies; instruments; Mars; mass spectroscopy; NASA; neutron probe; objectives; PADME; Phobos and Deimos & Mars Environment mission concept; Phobos Satellite; planetary interiors; planets; satellites; spacecraft; spectroscopy; surface properties; terrestrial planets ER - TY - JOUR T1 - NanoSWARM; a CubeSat Discovery Mission to study space weathering, lunar magnetism, lunar water, and small-scale magnetospheres AN - 1840615926; 2016-093422 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Garrick-Bethell, I AU - Pieters, C M AU - Russell, C T AU - Weiss, B P AU - Halekas, J AU - Larson, D AU - Poppe, Andrew R AU - Lawrence, D J AU - Elphic, Richard C AU - Hayne, Paul O AU - Blakely, R J AU - Kim, K H AU - Choi, Y J AU - Jin, H AU - Hemingway, D AU - Nayak, M AU - Puig-Suari, J AU - Jaroux, B AU - Warwick, S AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 3000 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - water KW - lunar swirls KW - Reiner Gamma KW - polar regions KW - NanoSWARM mission concept KW - Moon KW - CubeSat KW - magnetic anomalies KW - concepts KW - weathering KW - magnetic field KW - volatiles KW - space weathering KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1840615926?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=NanoSWARM%3B+a+CubeSat+Discovery+Mission+to+study+space+weathering%2C+lunar+magnetism%2C+lunar+water%2C+and+small-scale+magnetospheres&rft.au=Garrick-Bethell%2C+I%3BPieters%2C+C+M%3BRussell%2C+C+T%3BWeiss%2C+B+P%3BHalekas%2C+J%3BLarson%2C+D%3BPoppe%2C+Andrew+R%3BLawrence%2C+D+J%3BElphic%2C+Richard+C%3BHayne%2C+Paul+O%3BBlakely%2C+R+J%3BKim%2C+K+H%3BChoi%2C+Y+J%3BJin%2C+H%3BHemingway%2C+D%3BNayak%2C+M%3BPuig-Suari%2C+J%3BJaroux%2C+B%3BWarwick%2C+S%3BAnonymous&rft.aulast=Garrick-Bethell&rft.aufirst=I&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.hou.usra.edu/meetings/lpsc2015/pdf/3000.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 12 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Aug. 31, 2016 N1 - Last updated - 2016-11-17 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - concepts; CubeSat; lunar swirls; magnetic anomalies; magnetic field; Moon; NanoSWARM mission concept; polar regions; Reiner Gamma; space weathering; volatiles; water; weathering ER - TY - JOUR T1 - Lipid detection in Fe(III)-dominated samples to prepare for the tetramethyl-ammonium hydroxide (TMAH) wet chemistry experiment on the SAM instrument suite AN - 1840615585; 2016-093380 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Williams, Amy J AU - Eigenbrode, J AU - Floyd, M AU - McAdam, A AU - Freissinet, C AU - Glavin, Daniel P AU - Mahaffy, Paul R AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 1814 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - methylation KW - experimental studies KW - fatty acids KW - lipids KW - gas chromatograms KW - hydrolysis KW - Mars KW - biomarkers KW - iron KW - Gale Crater KW - terrestrial planets KW - tetramethyl-ammonium hydroxide method KW - planets KW - ferric iron KW - Sample Analysis at Mars KW - organic compounds KW - organic acids KW - detection KW - metals KW - chromatograms KW - Mars Science Laboratory KW - carboxylic acids KW - wet methods KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1840615585?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Lipid+detection+in+Fe%28III%29-dominated+samples+to+prepare+for+the+tetramethyl-ammonium+hydroxide+%28TMAH%29+wet+chemistry+experiment+on+the+SAM+instrument+suite&rft.au=Williams%2C+Amy+J%3BEigenbrode%2C+J%3BFloyd%2C+M%3BMcAdam%2C+A%3BFreissinet%2C+C%3BGlavin%2C+Daniel+P%3BMahaffy%2C+Paul+R%3BAnonymous&rft.aulast=Williams&rft.aufirst=Amy&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.hou.usra.edu/meetings/lpsc2015/pdf/1814.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 15 N1 - PubXState - TX N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Accessed on Aug. 16, 2016 N1 - Last updated - 2016-11-17 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - biomarkers; carboxylic acids; chromatograms; detection; experimental studies; fatty acids; ferric iron; Gale Crater; gas chromatograms; hydrolysis; iron; lipids; Mars; Mars Science Laboratory; metals; methylation; organic acids; organic compounds; planets; Sample Analysis at Mars; terrestrial planets; tetramethyl-ammonium hydroxide method; wet methods ER - TY - JOUR T1 - Interior structure and habitability of super-Europas and super-Ganymedes AN - 1840615485; 2016-093372 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Vance, S AU - Barnes, R AU - Brown, J M AU - Bollengier, O AU - Sotin, C AU - Choukroun, M AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 2717 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - icy satellites KW - Europa Satellite KW - subsurface ocean KW - Ganymede Satellite KW - mantle KW - Galilean satellites KW - aqueous solutions KW - mass KW - mineral composition KW - phase equilibria KW - equations of state KW - thermodynamic properties KW - satellites KW - P-T conditions KW - water KW - upper mantle KW - Earth KW - extrasolar planets KW - convection KW - depth KW - size KW - terrestrial planets KW - planets KW - habitability KW - planetary interiors KW - ice shells KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1840615485?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Interior+structure+and+habitability+of+super-Europas+and+super-Ganymedes&rft.au=Vance%2C+S%3BBarnes%2C+R%3BBrown%2C+J+M%3BBollengier%2C+O%3BSotin%2C+C%3BChoukroun%2C+M%3BAnonymous&rft.aulast=Vance&rft.aufirst=S&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.hou.usra.edu/meetings/lpsc2015/pdf/2717.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 25 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Aug. 15, 2016 N1 - Last updated - 2016-11-17 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - aqueous solutions; convection; depth; Earth; equations of state; Europa Satellite; extrasolar planets; Galilean satellites; Ganymede Satellite; habitability; ice shells; icy satellites; mantle; mass; mineral composition; P-T conditions; phase equilibria; planetary interiors; planets; satellites; size; subsurface ocean; terrestrial planets; thermodynamic properties; upper mantle; water ER - TY - JOUR T1 - Comprehensive non-destructive conservation documentation of lunar samples using high-resolution image-based 3D reconstructions and X-ray CT data AN - 1840615409; 2016-093419 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Blumenfeld, Ericka H AU - Evans, Cynthia A AU - Oshel, E R AU - Liddle, D A AU - Beaulieu, K AU - Zeigler, R A AU - Hanna, Romy D AU - Ketcham, R A AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 2740 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - high-resolution methods KW - imagery KW - three-dimensional models KW - Moon KW - textures KW - Apollo Program KW - non-destructive methods KW - photography KW - visualization KW - laboratory studies KW - curation KW - lunar samples KW - Sample 60639 KW - composition KW - X-ray analysis KW - reconstruction KW - computed tomography data KW - preservation KW - image analysis KW - collections KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1840615409?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Comprehensive+non-destructive+conservation+documentation+of+lunar+samples+using+high-resolution+image-based+3D+reconstructions+and+X-ray+CT+data&rft.au=Blumenfeld%2C+Ericka+H%3BEvans%2C+Cynthia+A%3BOshel%2C+E+R%3BLiddle%2C+D+A%3BBeaulieu%2C+K%3BZeigler%2C+R+A%3BHanna%2C+Romy+D%3BKetcham%2C+R+A%3BAnonymous&rft.aulast=Blumenfeld&rft.aufirst=Ericka&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.hou.usra.edu/meetings/lpsc2015/pdf/2740.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 5 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Aug. 30, 2016 N1 - Last updated - 2016-11-17 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Apollo Program; collections; composition; computed tomography data; curation; high-resolution methods; image analysis; imagery; laboratory studies; lunar samples; Moon; non-destructive methods; photography; preservation; reconstruction; Sample 60639; textures; three-dimensional models; visualization; X-ray analysis ER - TY - JOUR T1 - Effect of high electron radiation doses on the preservation of antigenic structures of biomolecules; implications for life detection on Mars AN - 1840614867; 2016-093387 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Parro, V AU - Blanco, Y AU - de Diego-Castilla, G AU - Davila, A F AU - Moreno-Paz, M AU - Gallardo-Carreno, I AU - Stoker, C AU - McKay, C P AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 1223 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - irradiation KW - astrobiology KW - Mars KW - fluorescence KW - immunoassays KW - Bacillus KW - electrons KW - soils KW - experimental studies KW - Bacillus subtilis KW - radiation damage KW - damage KW - biomarkers KW - perchlorate KW - terrestrial planets KW - spores KW - planets KW - organic compounds KW - detection KW - Antarctica KW - natural analogs KW - bacteria KW - McMurdo dry valleys KW - Victoria Land KW - peptides KW - proteins KW - Icebreaker Mission KW - preservation KW - instruments KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1840614867?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Effect+of+high+electron+radiation+doses+on+the+preservation+of+antigenic+structures+of+biomolecules%3B+implications+for+life+detection+on+Mars&rft.au=Parro%2C+V%3BBlanco%2C+Y%3Bde+Diego-Castilla%2C+G%3BDavila%2C+A+F%3BMoreno-Paz%2C+M%3BGallardo-Carreno%2C+I%3BStoker%2C+C%3BMcKay%2C+C+P%3BAnonymous&rft.aulast=Parro&rft.aufirst=V&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.hou.usra.edu/meetings/lpsc2015/pdf/1223.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 5 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Aug. 18, 2016 N1 - Last updated - 2016-11-17 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Antarctica; astrobiology; Bacillus; Bacillus subtilis; bacteria; biomarkers; damage; detection; electrons; experimental studies; fluorescence; Icebreaker Mission; immunoassays; instruments; irradiation; Mars; McMurdo dry valleys; natural analogs; organic compounds; peptides; perchlorate; planets; preservation; proteins; radiation damage; soils; spores; terrestrial planets; Victoria Land ER - TY - JOUR T1 - The potential for current tidal-tectonic activity on Charon from obliquity tides AN - 1840614793; 2016-093416 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Rhoden, Alyssa R AU - Henning, Wade AU - Hurford, Terry A AU - Bills, Bruce G AU - Hamilton, Douglas AU - Walker, Matthew E AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 2456 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - icy satellites KW - obliquity of the ecliptic KW - Europa Satellite KW - orbits KW - stress KW - Galilean satellites KW - simulation KW - tides KW - fractures KW - viscosity KW - planetary interiors KW - Charon KW - tectonics KW - satellites KW - ice shells KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1840614793?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=The+potential+for+current+tidal-tectonic+activity+on+Charon+from+obliquity+tides&rft.au=Rhoden%2C+Alyssa+R%3BHenning%2C+Wade%3BHurford%2C+Terry+A%3BBills%2C+Bruce+G%3BHamilton%2C+Douglas%3BWalker%2C+Matthew+E%3BAnonymous&rft.aulast=Rhoden&rft.aufirst=Alyssa&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.hou.usra.edu/meetings/lpsc2015/pdf/2456.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 11 N1 - PubXState - TX N1 - Document feature - 1 table N1 - SuppNotes - Accessed on Aug. 29, 2016 N1 - Last updated - 2016-11-17 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Charon; Europa Satellite; fractures; Galilean satellites; ice shells; icy satellites; obliquity of the ecliptic; orbits; planetary interiors; satellites; simulation; stress; tectonics; tides; viscosity ER - TY - JOUR T1 - Icebreaker drill cuttings size analysis from Mars analog icy-soils AN - 1840614745; 2016-093447 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Bergman, Dean AU - Zacny, K AU - Dave, A AU - Paulsen, G AU - Glass, B J AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 1228 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - soils KW - experimental studies KW - permafrost KW - penetration KW - grain size KW - Mars KW - freezing KW - cuttings KW - Icebreaker drill system KW - concepts KW - size KW - polar caps KW - terrestrial planets KW - planets KW - ice KW - natural analogs KW - water content KW - testing KW - ground ice KW - drilling KW - instruments KW - design KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1840614745?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Icebreaker+drill+cuttings+size+analysis+from+Mars+analog+icy-soils&rft.au=Bergman%2C+Dean%3BZacny%2C+K%3BDave%2C+A%3BPaulsen%2C+G%3BGlass%2C+B+J%3BAnonymous&rft.aulast=Bergman&rft.aufirst=Dean&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.hou.usra.edu/meetings/lpsc2015/pdf/1228.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 5 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Sept. 8, 2016 N1 - Last updated - 2016-11-17 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - concepts; cuttings; design; drilling; experimental studies; freezing; grain size; ground ice; ice; Icebreaker drill system; instruments; Mars; natural analogs; penetration; permafrost; planets; polar caps; size; soils; terrestrial planets; testing; water content ER - TY - JOUR T1 - Microstructural evidence for the condensation origin of hibonite-spinel inclusions from ALHA 77307 (CO3.0) AN - 1832726032; 2016-091259 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Han, Jangmi AU - Keller, Lindsay P AU - Brearley, Adrian J AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 2214 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - sorosilicates KW - silicates KW - stony meteorites KW - calcium-aluminum inclusions KW - microstructure KW - temperature KW - CO chondrites KW - meteorites KW - melilite group KW - melilite KW - inclusions KW - orthosilicates KW - ALHA 77307 KW - oxides KW - chondrites KW - condensation KW - spinel KW - electron microscopy data KW - hibonite KW - carbonaceous chondrites KW - epitaxy KW - intergrowths KW - TEM data KW - solar nebula KW - focused ion beam KW - Allan Hills Meteorites KW - nucleation KW - high temperature KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832726032?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Microstructural+evidence+for+the+condensation+origin+of+hibonite-spinel+inclusions+from+ALHA+77307+%28CO3.0%29&rft.au=Han%2C+Jangmi%3BKeller%2C+Lindsay+P%3BBrearley%2C+Adrian+J%3BAnonymous&rft.aulast=Han&rft.aufirst=Jangmi&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.hou.usra.edu/meetings/lpsc2015/pdf/2214.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 11 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on May 4, 2016 N1 - Last updated - 2016-10-27 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - ALHA 77307; Allan Hills Meteorites; calcium-aluminum inclusions; carbonaceous chondrites; chondrites; CO chondrites; condensation; electron microscopy data; epitaxy; focused ion beam; hibonite; high temperature; inclusions; intergrowths; melilite; melilite group; meteorites; microstructure; nucleation; orthosilicates; oxides; silicates; solar nebula; sorosilicates; spinel; stony meteorites; TEM data; temperature ER - TY - JOUR T1 - Lithologies making up CM carbonaceous chondrites and their link to space exposure ages AN - 1832725160; 2016-091253 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Gregory, Timothy AU - Zolensky, Michael E AU - Trieman, Alan AU - Berger, Eve L AU - Le, Loan AU - Fagan, Amy L AU - Takenouchi, Atsushi AU - Velbel, Michael A AU - Nishiizumi, Kunihiko AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 1227 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - silicates KW - alteration KW - magnesium KW - stony meteorites KW - exposure age KW - electron probe data KW - meteorites KW - LON 94101 KW - chondrites KW - alkaline earth metals KW - breccia KW - accretion KW - parent bodies KW - matrix KW - electron microscopy data KW - clasts KW - carbonaceous chondrites KW - impacts KW - ejecta KW - aqueous alteration KW - Lonewolf Nunataks Meteorites KW - metals KW - chondrules KW - petrography KW - sheet silicates KW - CM chondrites KW - SEM data KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832725160?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Lithologies+making+up+CM+carbonaceous+chondrites+and+their+link+to+space+exposure+ages&rft.au=Gregory%2C+Timothy%3BZolensky%2C+Michael+E%3BTrieman%2C+Alan%3BBerger%2C+Eve+L%3BLe%2C+Loan%3BFagan%2C+Amy+L%3BTakenouchi%2C+Atsushi%3BVelbel%2C+Michael+A%3BNishiizumi%2C+Kunihiko%3BAnonymous&rft.aulast=Gregory&rft.aufirst=Timothy&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.hou.usra.edu/meetings/lpsc2015/pdf/1227.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 2 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on May 3, 2016 N1 - Last updated - 2016-10-27 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - accretion; alkaline earth metals; alteration; aqueous alteration; breccia; carbonaceous chondrites; chondrites; chondrules; clasts; CM chondrites; ejecta; electron microscopy data; electron probe data; exposure age; impacts; LON 94101; Lonewolf Nunataks Meteorites; magnesium; matrix; metals; meteorites; parent bodies; petrography; SEM data; sheet silicates; silicates; stony meteorites ER - TY - JOUR T1 - Fine-grained rims and matrix in unequilibrated ordinary chondrites; a comparative study of Northwest Africa 5717 (ung 3.05) and Semarkona (LL3.00) AN - 1832724990; 2016-091270 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Bigolski, J N AU - Zolensky, M E AU - Christoffersen, R AU - Weisberg, M K AU - Rahman, Z AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 2126 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - silicates KW - Northwest Africa Meteorites KW - alteration KW - ordinary chondrites KW - stony meteorites KW - olivine group KW - Semarkona Meteorite KW - meteorites KW - pyroxene group KW - mineral composition KW - olivine KW - orthosilicates KW - spectra KW - chondrites KW - chain silicates KW - amorphous materials KW - unequilibrated ordinary chondrites KW - parent bodies KW - matrix KW - LL chondrites KW - electron microscopy data KW - fine-grained rims KW - NWA 5717 KW - X-ray spectra KW - TEM data KW - EDS spectra KW - nesosilicates KW - focused ion beam KW - chondrules KW - sheet silicates KW - SEM data KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832724990?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Fine-grained+rims+and+matrix+in+unequilibrated+ordinary+chondrites%3B+a+comparative+study+of+Northwest+Africa+5717+%28ung+3.05%29+and+Semarkona+%28LL3.00%29&rft.au=Bigolski%2C+J+N%3BZolensky%2C+M+E%3BChristoffersen%2C+R%3BWeisberg%2C+M+K%3BRahman%2C+Z%3BAnonymous&rft.aulast=Bigolski&rft.aufirst=J&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.hou.usra.edu/meetings/lpsc2015/pdf/2126.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 9 N1 - PubXState - TX N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Accessed on May 6, 2016 N1 - Last updated - 2016-10-27 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - alteration; amorphous materials; chain silicates; chondrites; chondrules; EDS spectra; electron microscopy data; fine-grained rims; focused ion beam; LL chondrites; matrix; meteorites; mineral composition; nesosilicates; Northwest Africa Meteorites; NWA 5717; olivine; olivine group; ordinary chondrites; orthosilicates; parent bodies; pyroxene group; SEM data; Semarkona Meteorite; sheet silicates; silicates; spectra; stony meteorites; TEM data; unequilibrated ordinary chondrites; X-ray spectra ER - TY - JOUR T1 - Petrology and cosmochemistry of a suite of R chondrites AN - 1832724926; 2016-091251 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Torrano, Z A AU - Mittlefehldt, D W AU - Peng, Z X AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 1229 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - silicates KW - stony meteorites KW - LAP 03639 KW - LaPaz Icefield Meteorites KW - mass spectra KW - olivine group KW - LAP 04840 KW - electron probe data KW - meteorites KW - pyroxene group KW - mineral composition KW - whole rock KW - mica group KW - olivine KW - orthosilicates KW - LAP 031156 KW - spectra KW - chondrites KW - chemical composition KW - chain silicates KW - Miller Range Meteorites KW - closed systems KW - MIL 11207 KW - amphibole group KW - metamorphism KW - nesosilicates KW - ICP mass spectra KW - Antarctica KW - rumurutiites KW - petrography KW - sheet silicates KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832724926?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Petrology+and+cosmochemistry+of+a+suite+of+R+chondrites&rft.au=Torrano%2C+Z+A%3BMittlefehldt%2C+D+W%3BPeng%2C+Z+X%3BAnonymous&rft.aulast=Torrano&rft.aufirst=Z&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.hou.usra.edu/meetings/lpsc2015/pdf/1229.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 9 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on May 2, 2016 N1 - Last updated - 2016-10-27 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - amphibole group; Antarctica; chain silicates; chemical composition; chondrites; closed systems; electron probe data; ICP mass spectra; LAP 031156; LAP 03639; LAP 04840; LaPaz Icefield Meteorites; mass spectra; metamorphism; meteorites; mica group; MIL 11207; Miller Range Meteorites; mineral composition; nesosilicates; olivine; olivine group; orthosilicates; petrography; pyroxene group; rumurutiites; sheet silicates; silicates; spectra; stony meteorites; whole rock ER - TY - JOUR T1 - Early size distributions of chondrule subgroups overprinted by the final accumulation process of particle components in Allende AN - 1832724738; 2016-091279 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - McCain, K A AU - Simon, Justin I AU - Cuzzi, Jeffrey N AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 2896 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - stony meteorites KW - textures KW - calcium-aluminum inclusions KW - electron microscopy data KW - carbonaceous chondrites KW - CV chondrites KW - chondrule rims KW - early solar system KW - Allende Meteorite KW - meteorites KW - size distribution KW - chondrules KW - inclusions KW - classification KW - amoeboid olivine aggregates KW - sorting KW - components KW - chondrites KW - SEM data KW - image analysis KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832724738?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Early+size+distributions+of+chondrule+subgroups+overprinted+by+the+final+accumulation+process+of+particle+components+in+Allende&rft.au=McCain%2C+K+A%3BSimon%2C+Justin+I%3BCuzzi%2C+Jeffrey+N%3BAnonymous&rft.aulast=McCain&rft.aufirst=K&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.hou.usra.edu/meetings/lpsc2015/pdf/2896.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 13 N1 - PubXState - TX N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Accessed May 10, 2016 N1 - Last updated - 2016-10-27 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Allende Meteorite; amoeboid olivine aggregates; calcium-aluminum inclusions; carbonaceous chondrites; chondrites; chondrule rims; chondrules; classification; components; CV chondrites; early solar system; electron microscopy data; image analysis; inclusions; meteorites; SEM data; size distribution; sorting; stony meteorites; textures ER - TY - JOUR T1 - Geologic mapping of the Adiri region of Titan AN - 1832723026; 2016-091383 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Williams, David A AU - Malaska, Michael J AU - Lopes, Rosaly M C AU - Radebaugh, J AU - Barnes, J W AU - Turtle, E P AU - Kirk, R AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 1127 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - eolian features KW - icy satellites KW - cryovolcanism KW - ArcGIS KW - radar methods KW - Adiri Quadrangle KW - mapping KW - dielectric constant KW - clathrates KW - organic compounds KW - Cassini-Huygens Mission KW - geographic information systems KW - SAR KW - ice KW - hydrocarbons KW - fluvial features KW - Titan Satellite KW - information systems KW - tectonics KW - satellites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832723026?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Geologic+mapping+of+the+Adiri+region+of+Titan&rft.au=Williams%2C+David+A%3BMalaska%2C+Michael+J%3BLopes%2C+Rosaly+M+C%3BRadebaugh%2C+J%3BBarnes%2C+J+W%3BTurtle%2C+E+P%3BKirk%2C+R%3BAnonymous&rft.aulast=Williams&rft.aufirst=David&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/1127.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 20 N1 - PubXState - TX N1 - Document feature - sketch map N1 - SuppNotes - Accessed on June 16, 2016 N1 - Last updated - 2016-10-27 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Adiri Quadrangle; ArcGIS; Cassini-Huygens Mission; clathrates; cryovolcanism; dielectric constant; eolian features; fluvial features; geographic information systems; hydrocarbons; ice; icy satellites; information systems; mapping; organic compounds; radar methods; SAR; satellites; tectonics; Titan Satellite ER - TY - JOUR T1 - Hubble's long-term OPAL (Outer Planet Atmospheres Legacy) Program observed cloud activity on Uranus AN - 1832722976; 2016-091353 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Wong, Michael H AU - Simon, Any A AU - Orton, Glenn S AU - de Pater, Imke AU - Sayanagi, Kunio M AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 2606 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - clouds KW - plumes KW - Outer Planet Atmospheres Legacy Program KW - Jupiter KW - atmosphere KW - convection KW - giant planets KW - brightness KW - Saturn KW - planets KW - Uranus KW - Hubble Space Telescope KW - storms KW - outer planets KW - winds KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832722976?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Hubble%27s+long-term+OPAL+%28Outer+Planet+Atmospheres+Legacy%29+Program+observed+cloud+activity+on+Uranus&rft.au=Wong%2C+Michael+H%3BSimon%2C+Any+A%3BOrton%2C+Glenn+S%3Bde+Pater%2C+Imke%3BSayanagi%2C+Kunio+M%3BAnonymous&rft.aulast=Wong&rft.aufirst=Michael&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/2606.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 9 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on June 3, 2016 N1 - Last updated - 2016-10-27 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - atmosphere; brightness; clouds; convection; giant planets; Hubble Space Telescope; Jupiter; Outer Planet Atmospheres Legacy Program; outer planets; planets; plumes; Saturn; storms; Uranus; winds ER - TY - JOUR T1 - Impact history on Vesta; petrographic, compositional and future chronological studies of melt clasts in howardites AN - 1832722863; 2016-091323 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Cartwright, Julia A AU - Mittlefehldt, D W AU - Hodges, K V AU - Wadhwa, M AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 1452 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - silicates KW - stony meteorites KW - asteroids KW - Elephant Moraine Meteorites KW - melts KW - meteorites KW - Late Heavy Bombardment KW - impact melts KW - pyroxene group KW - howardite KW - composition KW - relict materials KW - Kapoeta Meteorite KW - chain silicates KW - Vesta Asteroid KW - EET 87532 KW - clasts KW - impacts KW - QUE 94200 KW - achondrites KW - paired meteorites KW - QUE 87001 KW - Queen Alexandra Range Meteorites KW - petrography KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832722863?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Impact+history+on+Vesta%3B+petrographic%2C+compositional+and+future+chronological+studies+of+melt+clasts+in+howardites&rft.au=Cartwright%2C+Julia+A%3BMittlefehldt%2C+D+W%3BHodges%2C+K+V%3BWadhwa%2C+M%3BAnonymous&rft.aulast=Cartwright&rft.aufirst=Julia&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.hou.usra.edu/meetings/lpsc2015/pdf/1452.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 12 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on May 25, 2016 N1 - Last updated - 2016-10-27 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - achondrites; asteroids; chain silicates; clasts; composition; EET 87532; Elephant Moraine Meteorites; howardite; impact melts; impacts; Kapoeta Meteorite; Late Heavy Bombardment; melts; meteorites; paired meteorites; petrography; pyroxene group; QUE 87001; QUE 94200; Queen Alexandra Range Meteorites; relict materials; silicates; stony meteorites; Vesta Asteroid ER - TY - JOUR T1 - Agglutinates in howardite NWA 1769; space weathering on Vesta AN - 1832722775; 2016-091322 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Liu, Yang AU - Keller, Lindsay P AU - Fraeman, A A AU - Christoffersen, R AU - Rahman, Z AU - Ehlmann, B L AU - Noble, S K AU - Barrat, J A AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 1706 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - Northwest Africa Meteorites KW - asteroids KW - Dawn Mission KW - melts KW - iron KW - meteorites KW - impact melts KW - devitrification KW - spherules KW - agglutinates KW - vesicular texture KW - NWA 1769 KW - Vesta Asteroid KW - textures KW - parent bodies KW - electron microscopy data KW - weathering KW - space weathering KW - iron sulfides KW - metals KW - petrography KW - nanophase iron KW - sulfides KW - reflectance KW - SEM data KW - annealing KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832722775?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Agglutinates+in+howardite+NWA+1769%3B+space+weathering+on+Vesta&rft.au=Liu%2C+Yang%3BKeller%2C+Lindsay+P%3BFraeman%2C+A+A%3BChristoffersen%2C+R%3BRahman%2C+Z%3BEhlmann%2C+B+L%3BNoble%2C+S+K%3BBarrat%2C+J+A%3BAnonymous&rft.aulast=Liu&rft.aufirst=Yang&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.hou.usra.edu/meetings/lpsc2015/pdf/1706.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 13 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on May 25, 2016 N1 - Last updated - 2016-10-27 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - agglutinates; annealing; asteroids; Dawn Mission; devitrification; electron microscopy data; impact melts; iron; iron sulfides; melts; metals; meteorites; nanophase iron; Northwest Africa Meteorites; NWA 1769; parent bodies; petrography; reflectance; SEM data; space weathering; spherules; sulfides; textures; vesicular texture; Vesta Asteroid; weathering ER - TY - JOUR T1 - Solar flare track exposure ages in regolith particles; a calibration for transmission electron microscope measurements AN - 1832722738; 2016-091403 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Berger, Eve L AU - Keller, Lindsay P AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 1543 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - silicates KW - Sample 64455 KW - plagioclase KW - particle tracks KW - asteroids KW - Moon KW - solar energetic particles KW - olivine group KW - electron microscopy data KW - calibration KW - exposure age KW - TEM data KW - anorthite KW - nesosilicates KW - focused ion beam KW - lunar samples KW - olivine KW - particle-track dating KW - orthosilicates KW - framework silicates KW - feldspar group KW - regolith KW - solar activity KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832722738?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Solar+flare+track+exposure+ages+in+regolith+particles%3B+a+calibration+for+transmission+electron+microscope+measurements&rft.au=Berger%2C+Eve+L%3BKeller%2C+Lindsay+P%3BAnonymous&rft.aulast=Berger&rft.aufirst=Eve&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/1543.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 10 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on June 24, 2016 N1 - Last updated - 2016-10-27 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - anorthite; asteroids; calibration; electron microscopy data; exposure age; feldspar group; focused ion beam; framework silicates; lunar samples; Moon; nesosilicates; olivine; olivine group; orthosilicates; particle tracks; particle-track dating; plagioclase; regolith; Sample 64455; silicates; solar activity; solar energetic particles; TEM data ER - TY - JOUR T1 - Martian chlorobenzene identified by Curiosity in Yellowknife Bay; evidence for the preservation of organics in a mudstone on Mars AN - 1832672293; 726459-66 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Glavin, Daniel AU - Freissinet, C AU - Mahaffy, P AU - Miller, K AU - Eigenbrode, J AU - Summons, R AU - Martin, M AU - Franz, H AU - Steele, A AU - Archer, D AU - Atreya, S AU - Brinckerhoff, W AU - Brunner, A AU - Buch, A AU - Cabane, M AU - Coll, P AU - Conrad, P AU - Des Marais, D AU - Dworkin, J AU - Fairen, A AU - Francois, P AU - Grotzinger, J AU - Kashyap, S AU - Malespin, C AU - McAdam, A AU - Ming, D AU - Navarro-Gonzalez, R AU - Pavlov, A AU - Squyres, S AU - Stern, J AU - Sumner, D AU - Sutter, B AU - Szopa, C AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 1178 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - Yellowknife Bay KW - chlorinated hydrocarbons KW - chlorobenzene KW - mudstone KW - gas chromatograms KW - mass spectra KW - Mars KW - perchlorate KW - terrestrial planets KW - planets KW - organic compounds KW - sedimentary rocks KW - detection KW - pyrolysis KW - evolved gas analysis KW - Sample Analysis at Mars instrument KW - chromatograms KW - Curiosity Rover KW - Mars Science Laboratory KW - halogenated hydrocarbons KW - spectra KW - clastic rocks KW - preservation KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832672293?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Climate+Dynamics&rft.atitle=Evaluation+of+CMIP5+dynamic+sea+surface+height+multi-model+simulations+against+satellite+observations&rft.au=Landerer%2C+Felix+W%3BGleckler%2C+Peter+J%3BLee%2C+Tong&rft.aulast=Landerer&rft.aufirst=Felix&rft.date=2014-09-01&rft.volume=43&rft.issue=5-6&rft.spage=1271&rft.isbn=&rft.btitle=&rft.title=Climate+Dynamics&rft.issn=09307575&rft_id=info:doi/10.1007%2Fs00382-013-1939-x L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/1178.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - Number of references - 8 N1 - PubXState - TX N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Accessed on May 6, 2016 N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - chlorinated hydrocarbons; chlorobenzene; chromatograms; clastic rocks; Curiosity Rover; detection; evolved gas analysis; gas chromatograms; halogenated hydrocarbons; Mars; Mars Science Laboratory; mass spectra; mudstone; organic compounds; perchlorate; planets; preservation; pyrolysis; Sample Analysis at Mars instrument; sedimentary rocks; spectra; terrestrial planets; Yellowknife Bay ER - TY - JOUR T1 - Indigenous carbonaceous matter and boron associated with halite crystals in Nakhla AN - 1832671266; 726459-64 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Thomas-Keprta, K L AU - Clemett, S J AU - McKay, D S AU - Gibson, E K AU - Wentworth, S J AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 2770 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - halides KW - nakhlite KW - stony meteorites KW - Martian meteorites KW - astrobiology KW - Mars KW - Nakhla Meteorite KW - SNC Meteorites KW - meteorites KW - sedimentary rocks KW - Amazonian KW - chlorides KW - spectra KW - carbonaceous composition KW - chemically precipitated rocks KW - secondary minerals KW - electron microscopy data KW - evaporites KW - achondrites KW - X-ray spectra KW - halite KW - EDS spectra KW - terrestrial planets KW - aqueous alteration KW - planets KW - nucleation KW - terrestrial comparison KW - boron KW - SEM data KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832671266?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Indigenous+carbonaceous+matter+and+boron+associated+with+halite+crystals+in+Nakhla&rft.au=Thomas-Keprta%2C+K+L%3BClemett%2C+S+J%3BMcKay%2C+D+S%3BGibson%2C+E+K%3BWentworth%2C+S+J%3BAnonymous&rft.aulast=Thomas-Keprta&rft.aufirst=K&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/2770.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - Number of references - 6 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on May 6, 2016 N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - achondrites; Amazonian; aqueous alteration; astrobiology; boron; carbonaceous composition; chemically precipitated rocks; chlorides; EDS spectra; electron microscopy data; evaporites; halides; halite; Mars; Martian meteorites; meteorites; Nakhla Meteorite; nakhlite; nucleation; planets; secondary minerals; sedimentary rocks; SEM data; SNC Meteorites; spectra; stony meteorites; terrestrial comparison; terrestrial planets; X-ray spectra ER - TY - JOUR T1 - Origin of volatiles in Earth; indigenous versus exogenous sources based on highly siderophile, volatile siderophile, and light volatile elements AN - 1832670945; 726459-47 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Righter, K AU - Danielson, L AU - Pando, K M AU - Marin, N AU - Nickodem, K AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 2650 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - bismuth KW - silicon KW - iron KW - temperature KW - nitrogen KW - indium KW - volatile elements KW - carbon KW - highly siderophile elements KW - alloys KW - light elements KW - water KW - experimental studies KW - antimony KW - Earth KW - accretion KW - differentiation KW - siderophile elements KW - volatiles KW - metals KW - hydrogen KW - germanium KW - sulfur KW - anvil cells KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832670945?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Origin+of+volatiles+in+Earth%3B+indigenous+versus+exogenous+sources+based+on+highly+siderophile%2C+volatile+siderophile%2C+and+light+volatile+elements&rft.au=Righter%2C+K%3BDanielson%2C+L%3BPando%2C+K+M%3BMarin%2C+N%3BNickodem%2C+K%3BAnonymous&rft.aulast=Righter&rft.aufirst=K&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/2650.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - Number of references - 26 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on May 3, 2016 N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - accretion; alloys; antimony; anvil cells; bismuth; carbon; differentiation; Earth; experimental studies; germanium; highly siderophile elements; hydrogen; indium; iron; light elements; metals; nitrogen; siderophile elements; silicon; sulfur; temperature; volatile elements; volatiles; water ER - TY - JOUR T1 - Halite as a methane sequestration host; a possible explanation for periodic methane release on Mars, and a surface-accessible source ancient Martian carbon AN - 1832668439; 726459-65 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Fries, Marc D AU - Steele, Andrew AU - Hynek, B M AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 3017 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - halides KW - ordinary chondrites KW - stony meteorites KW - erosion KW - aliphatic hydrocarbons KW - Mars KW - meteorites KW - inclusions KW - chlorides KW - chondrites KW - chloromethane KW - methane KW - wind erosion KW - H chondrites KW - alkanes KW - impacts KW - halite KW - terrestrial planets KW - aqueous alteration KW - planets KW - organic compounds KW - Monahans Meteorite KW - natural analogs KW - hydrocarbons KW - heating KW - fluid inclusions KW - 05B:Petrology of meteorites and tektites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832668439?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Halite+as+a+methane+sequestration+host%3B+a+possible+explanation+for+periodic+methane+release+on+Mars%2C+and+a+surface-accessible+source+ancient+Martian+carbon&rft.au=Fries%2C+Marc+D%3BSteele%2C+Andrew%3BHynek%2C+B+M%3BAnonymous&rft.aulast=Fries&rft.aufirst=Marc&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/3017.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - Number of references - 10 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on May 6, 2016 N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; aqueous alteration; chlorides; chloromethane; chondrites; erosion; fluid inclusions; H chondrites; halides; halite; heating; hydrocarbons; impacts; inclusions; Mars; meteorites; methane; Monahans Meteorite; natural analogs; ordinary chondrites; organic compounds; planets; stony meteorites; terrestrial planets; wind erosion ER - TY - JOUR T1 - Turbulent concentration of mm-size particles in the protoplanetary nebula; scale-dependent cascades AN - 1832667283; 726459-44 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Cuzzi, J N AU - Hartlep, T AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 1691 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - numerical models KW - statistical analysis KW - turbulence KW - planetesimals KW - simulation KW - protoplanetary disk KW - size KW - solar nebula KW - models KW - scale models KW - eddies KW - Reynolds number KW - probability distribution function KW - particles KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832667283?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Turbulent+concentration+of+mm-size+particles+in+the+protoplanetary+nebula%3B+scale-dependent+cascades&rft.au=Cuzzi%2C+J+N%3BHartlep%2C+T%3BAnonymous&rft.aulast=Cuzzi&rft.aufirst=J&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/1691.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - Number of references - 20 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on May 2, 2016 N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - eddies; models; numerical models; particles; planetesimals; probability distribution function; protoplanetary disk; Reynolds number; scale models; simulation; size; solar nebula; statistical analysis; turbulence ER - TY - JOUR T1 - Xenon fractionation and Archean hydrogen escape AN - 1832666133; 726459-27 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Zahnle, K J AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 1549 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - isotope fractionation KW - Precambrian KW - atmosphere KW - xenon KW - krypton KW - ions KW - magnetic field KW - ionization KW - ultraviolet radiation KW - hydrodynamic escape KW - electromagnetic radiation KW - noble gases KW - hydrogen KW - solar radiation KW - Archean KW - atmospheric escape KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832666133?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Xenon+fractionation+and+Archean+hydrogen+escape&rft.au=Zahnle%2C+K+J%3BAnonymous&rft.aulast=Zahnle&rft.aufirst=K&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/1549.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - Number of references - 6 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Apr. 26, 2016 N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Archean; atmosphere; atmospheric escape; electromagnetic radiation; hydrodynamic escape; hydrogen; ionization; ions; isotope fractionation; krypton; magnetic field; noble gases; Precambrian; solar radiation; ultraviolet radiation; xenon ER - TY - JOUR T1 - Dawn Framing Camera clear filter imaging on Ceres approach AN - 1832646213; 724350-48 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Nathues, A AU - Sykes, M V AU - Buettner, I AU - Buczkowski, D L AU - Carsenty, U AU - Castillo-Rogez, J AU - Christensen, U AU - Gutierrez-Marques, P AU - Hall, I AU - Hoffmann, M AU - Jaumann, R AU - Joy, S AU - Keller, H U AU - Kersten, E AU - Krohn, K AU - Li, J Y AU - Marchi, S AU - Matz, K D AU - McCord, T B AU - McFadden, L A AU - Mengel, K AU - Mertens, V AU - Mottola, S AU - Neumann, W AU - Mastrodemos, N AU - O'Brien, D P AU - Otto, K AU - Pieters, C AU - Pieth, S AU - Polanskey, C AU - Preusker, F AU - Rayman, M D AU - Raymond, C AU - Reddy, V AU - Ripken, J AU - Roatsch, T AU - Russell, C T AU - Schaefer, M AU - Schaefer, T AU - Schenk, P AU - Schmedemann, N AU - Scholten, F AU - Schroeder, S E AU - Schulzeck, F AU - Sierks, H AU - Smith, D AU - Stephan, K AU - Thangjam, G AU - Weiland, M AU - Williams, D AU - Zuber, M AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 2069 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - imagery KW - Dawn Framing Camera KW - impact features KW - Ceres KW - asteroids KW - cartography KW - altitude KW - resurfacing KW - water vapor KW - relaxation KW - Dawn Mission KW - dwarf planets KW - ice KW - surface features KW - impact craters KW - ground ice KW - orbital observations KW - latitude KW - satellites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832646213?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Dawn+Framing+Camera+clear+filter+imaging+on+Ceres+approach&rft.au=Nathues%2C+A%3BSykes%2C+M+V%3BBuettner%2C+I%3BBuczkowski%2C+D+L%3BCarsenty%2C+U%3BCastillo-Rogez%2C+J%3BChristensen%2C+U%3BGutierrez-Marques%2C+P%3BHall%2C+I%3BHoffmann%2C+M%3BJaumann%2C+R%3BJoy%2C+S%3BKeller%2C+H+U%3BKersten%2C+E%3BKrohn%2C+K%3BLi%2C+J+Y%3BMarchi%2C+S%3BMatz%2C+K+D%3BMcCord%2C+T+B%3BMcFadden%2C+L+A%3BMengel%2C+K%3BMertens%2C+V%3BMottola%2C+S%3BNeumann%2C+W%3BMastrodemos%2C+N%3BO%27Brien%2C+D+P%3BOtto%2C+K%3BPieters%2C+C%3BPieth%2C+S%3BPolanskey%2C+C%3BPreusker%2C+F%3BRayman%2C+M+D%3BRaymond%2C+C%3BReddy%2C+V%3BRipken%2C+J%3BRoatsch%2C+T%3BRussell%2C+C+T%3BSchaefer%2C+M%3BSchaefer%2C+T%3BSchenk%2C+P%3BSchmedemann%2C+N%3BScholten%2C+F%3BSchroeder%2C+S+E%3BSchulzeck%2C+F%3BSierks%2C+H%3BSmith%2C+D%3BStephan%2C+K%3BThangjam%2C+G%3BWeiland%2C+M%3BWilliams%2C+D%3BZuber%2C+M%3BAnonymous&rft.aulast=Nathues&rft.aufirst=A&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/2069.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - Number of references - 18 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - altitude; asteroids; cartography; Ceres; Dawn Framing Camera; Dawn Mission; dwarf planets; ground ice; ice; imagery; impact craters; impact features; latitude; orbital observations; relaxation; resurfacing; satellites; surface features; water vapor ER - TY - JOUR T1 - First in situ wet chemistry experiment on Mars using the SAM instrument; MTBSTFA derivatization on a Martian mudstone AN - 1832645757; 724348-6 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Freissinet, Caroline AU - Glavin, D P AU - Buch, A AU - Szopa, C AU - Kashyap, S AU - Franz, H B AU - Eigenbrode, J L AU - Brinckerhoff, W B AU - Navarro-Gonzalez, R AU - Teinturier, S AU - Malespin, C A AU - Prats, B D AU - Mahaffy, P R AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract 2934.pdf PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832645757?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=First+in+situ+wet+chemistry+experiment+on+Mars+using+the+SAM+instrument%3B+MTBSTFA+derivatization+on+a+Martian+mudstone&rft.au=Freissinet%2C+Caroline%3BGlavin%2C+D+P%3BBuch%2C+A%3BSzopa%2C+C%3BKashyap%2C+S%3BFranz%2C+H+B%3BEigenbrode%2C+J+L%3BBrinckerhoff%2C+W+B%3BNavarro-Gonzalez%2C+R%3BTeinturier%2C+S%3BMalespin%2C+C+A%3BPrats%2C+B+D%3BMahaffy%2C+P+R%3BAnonymous&rft.aulast=Freissinet&rft.aufirst=Caroline&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - Number of references - 5 N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Complex nitrogen heterocycles in aqueous cyanide and formaldehyde reactions; implications for meteoritic and prebiotic chemistry AN - 1832641105; 724348-4 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Callahan, Michael P AU - Cleaves, H J, II AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - abstract 1444.pdf PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832641105?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Complex+nitrogen+heterocycles+in+aqueous+cyanide+and+formaldehyde+reactions%3B+implications+for+meteoritic+and+prebiotic+chemistry&rft.au=Callahan%2C+Michael+P%3BCleaves%2C+H+J%2C+II%3BAnonymous&rft.aulast=Callahan&rft.aufirst=Michael&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - Number of references - 8 N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - The taxonomic distribution of mission-accessible small near-Earth asteroids AN - 1832639934; 726463-50 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Hinkle, M L AU - Moskovitz, N A AU - Trilling, D E AU - Binzel, R P AU - Thomas, C A AU - Polishook, D AU - DeMeo, F E AU - Willman, M AU - Christensen, E AU - Person, M AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 1029 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - near-infrared spectra KW - ordinary chondrites KW - near-Earth objects KW - stony meteorites KW - asteroids KW - near-Earth asteroids KW - parent bodies KW - optical spectra KW - distribution KW - size KW - meteorites KW - physical properties KW - surveys KW - S-type asteroids KW - taxonomy KW - spectra KW - chondrites KW - reflectance KW - Mission Assessible Near-Earth Object Survey KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832639934?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=The+taxonomic+distribution+of+mission-accessible+small+near-Earth+asteroids&rft.au=Hinkle%2C+M+L%3BMoskovitz%2C+N+A%3BTrilling%2C+D+E%3BBinzel%2C+R+P%3BThomas%2C+C+A%3BPolishook%2C+D%3BDeMeo%2C+F+E%3BWillman%2C+M%3BChristensen%2C+E%3BPerson%2C+M%3BAnonymous&rft.aulast=Hinkle&rft.aufirst=M&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/1029.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - Number of references - 1 N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - asteroids; chondrites; distribution; meteorites; Mission Assessible Near-Earth Object Survey; near-Earth asteroids; near-Earth objects; near-infrared spectra; optical spectra; ordinary chondrites; parent bodies; physical properties; reflectance; S-type asteroids; size; spectra; stony meteorites; surveys; taxonomy ER - TY - JOUR T1 - A study of the King's Bowl phreatic explosion crater as a planetary analog AN - 1832637496; 726463-34 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Sears, D W G AU - Hughes, S S AU - Kobs-Nawotniak, S AU - Borg, C AU - Kim, K J AU - Sears, H AU - Skok, J R AU - Lim, S S AU - Heldmann, J L AU - Haberle, C AU - Downs, M AU - Tornabene, L L AU - Osinski, G R AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 1601 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - United States KW - impact features KW - asteroids KW - Mars KW - King's Bowl Crater KW - Europe KW - Craters of the Moon National Monument and Preserve KW - national monuments KW - volcanism KW - Central Europe KW - satellites KW - Deimos Satellite KW - Phobos Satellite KW - Idaho KW - Earth KW - Vesta Asteroid KW - Moon KW - explosions KW - Bavaria Germany KW - pits KW - public lands KW - ejecta KW - terrestrial planets KW - morphology KW - planets KW - volatiles KW - natural analogs KW - Ries Crater KW - impact craters KW - phreatic eruptions KW - Germany KW - fluidization KW - 23:Geomorphology KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832637496?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=A+study+of+the+King%27s+Bowl+phreatic+explosion+crater+as+a+planetary+analog&rft.au=Sears%2C+D+W+G%3BHughes%2C+S+S%3BKobs-Nawotniak%2C+S%3BBorg%2C+C%3BKim%2C+K+J%3BSears%2C+H%3BSkok%2C+J+R%3BLim%2C+S+S%3BHeldmann%2C+J+L%3BHaberle%2C+C%3BDowns%2C+M%3BTornabene%2C+L+L%3BOsinski%2C+G+R%3BAnonymous&rft.aulast=Sears&rft.aufirst=D+W&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/1601.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - Number of references - 19 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - asteroids; Bavaria Germany; Central Europe; Craters of the Moon National Monument and Preserve; Deimos Satellite; Earth; ejecta; Europe; explosions; fluidization; Germany; Idaho; impact craters; impact features; King's Bowl Crater; Mars; Moon; morphology; national monuments; natural analogs; Phobos Satellite; phreatic eruptions; pits; planets; public lands; Ries Crater; satellites; terrestrial planets; United States; Vesta Asteroid; volatiles; volcanism ER - TY - JOUR T1 - Physical characterization of Chelyabinsk-sized ( approximately 20 meter) near-Earth asteroids; implications for impact hazard, meteorite source bodies, and human exploration AN - 1832636643; 726463-48 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Reddy, V AU - Landis, R R AU - Sanchez, J A AU - Hardersen, P S AU - Burt, B AU - DeMeo, F E AU - Gaffey, M J AU - Le Corre, L AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 1289 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - albedo KW - near-infrared spectra KW - near-Earth objects KW - asteroids KW - telescope methods KW - near-Earth asteroids KW - parent bodies KW - characterization KW - bolides KW - impacts KW - size KW - meteors KW - meteorites KW - physical properties KW - mineral composition KW - rotation KW - Chelyabinsk event KW - natural hazards KW - composition KW - surveys KW - spectra KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832636643?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Physical+characterization+of+Chelyabinsk-sized+%28+approximately+20+meter%29+near-Earth+asteroids%3B+implications+for+impact+hazard%2C+meteorite+source+bodies%2C+and+human+exploration&rft.au=Reddy%2C+V%3BLandis%2C+R+R%3BSanchez%2C+J+A%3BHardersen%2C+P+S%3BBurt%2C+B%3BDeMeo%2C+F+E%3BGaffey%2C+M+J%3BLe+Corre%2C+L%3BAnonymous&rft.aulast=Reddy&rft.aufirst=V&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/1289.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - Number of references - 11 N1 - PubXState - TX N1 - Document feature - illus. incl. sketch map N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - albedo; asteroids; bolides; characterization; Chelyabinsk event; composition; impacts; meteorites; meteors; mineral composition; natural hazards; near-Earth asteroids; near-Earth objects; near-infrared spectra; parent bodies; physical properties; rotation; size; spectra; surveys; telescope methods ER - TY - JOUR T1 - Smectite formation from basaltic glass under acidic conditions on Mars AN - 1832626682; 725459-50 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Peretyazhko, T S AU - Sutter, B AU - Morris, R V AU - Agresti, D G AU - Le, L AU - Ming, D W AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 2404 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - silicates KW - mineral interlayer KW - alteration KW - experimental studies KW - X-ray diffraction data KW - saponite KW - smectite KW - Mars KW - electron microscopy data KW - iron KW - clay minerals KW - terrestrial planets KW - planets KW - metals KW - acidic composition KW - sheet silicates KW - spectra KW - chemical composition KW - basaltic composition KW - SEM data KW - pH KW - Eh KW - Mossbauer spectra KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832626682?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Smectite+formation+from+basaltic+glass+under+acidic+conditions+on+Mars&rft.au=Peretyazhko%2C+T+S%3BSutter%2C+B%3BMorris%2C+R+V%3BAgresti%2C+D+G%3BLe%2C+L%3BMing%2C+D+W%3BAnonymous&rft.aulast=Peretyazhko&rft.aufirst=T&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/2404.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - Number of references - 3 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on July 29, 2016 N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - acidic composition; alteration; basaltic composition; chemical composition; clay minerals; Eh; electron microscopy data; experimental studies; iron; Mars; metals; mineral interlayer; Mossbauer spectra; pH; planets; saponite; SEM data; sheet silicates; silicates; smectite; spectra; terrestrial planets; X-ray diffraction data ER - TY - JOUR T1 - First results from the MAVEN magnetic field investigation AN - 1832626543; 725459-9 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Connerney, Jack E P AU - Espley, J AU - Oliversen, R AU - Sheppard, D AU - Dibraccio, G AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 1080 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - terrestrial planets KW - Siding Spring Comet KW - planets KW - MAVEN Mission KW - comets KW - spacecraft KW - Mars KW - orbital observations KW - magnetometers KW - magnetic field KW - instruments KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832626543?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=First+results+from+the+MAVEN+magnetic+field+investigation&rft.au=Connerney%2C+Jack+E+P%3BEspley%2C+J%3BOliversen%2C+R%3BSheppard%2C+D%3BDibraccio%2C+G%3BAnonymous&rft.aulast=Connerney&rft.aufirst=Jack+E&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/1080.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - Number of references - 1 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on June 29, 2016 N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - comets; instruments; magnetic field; magnetometers; Mars; MAVEN Mission; orbital observations; planets; Siding Spring Comet; spacecraft; terrestrial planets ER - TY - JOUR T1 - Updated onset times of solar particle events observed by MSL/RAD; constraints on particle transport AN - 1832619833; 726459-8 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Wimmer-Schweingruber, R F AU - Hassler, Donalld M AU - Boettcher, Stephan AU - Martin, Cesar AU - Zeitlin, Cary AU - Brinza, David E AU - Posner, Arik AU - Reitz, Guenther AU - Burmeister, Soenke AU - Boehm, Eckart AU - Mueller-Mellin, Reinhold AU - Koehler, Jan AU - Ehresmann, Beng AU - Guo, Jingnan AU - Appel, Jan Kristoffer AU - Kharytonov, Alexander AU - Lohf, Henning AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 1311 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - Radiation Assessment Detector KW - transport KW - Sun KW - solar radiation KW - Mars Science Laboratory KW - RAD instrument KW - ions KW - solar particle events KW - particles KW - solar activity KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832619833?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Updated+onset+times+of+solar+particle+events+observed+by+MSL%2FRAD%3B+constraints+on+particle+transport&rft.au=Wimmer-Schweingruber%2C+R+F%3BHassler%2C+Donalld+M%3BBoettcher%2C+Stephan%3BMartin%2C+Cesar%3BZeitlin%2C+Cary%3BBrinza%2C+David+E%3BPosner%2C+Arik%3BReitz%2C+Guenther%3BBurmeister%2C+Soenke%3BBoehm%2C+Eckart%3BMueller-Mellin%2C+Reinhold%3BKoehler%2C+Jan%3BEhresmann%2C+Beng%3BGuo%2C+Jingnan%3BAppel%2C+Jan+Kristoffer%3BKharytonov%2C+Alexander%3BLohf%2C+Henning%3BAnonymous&rft.aulast=Wimmer-Schweingruber&rft.aufirst=R&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/1311.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - Number of references - 5 N1 - PubXState - TX N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Accessed on Apr. 19, 2016 N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - ions; Mars Science Laboratory; particles; RAD instrument; Radiation Assessment Detector; solar activity; solar particle events; solar radiation; Sun; transport ER - TY - JOUR T1 - King's Bowl, Idaho; a volcanic analog for fissure eruptions, pit craters and dike injection along Rima Hyginus, Moon, and Cyane Fossae, Mars AN - 1832619224; 726463-6 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Hughes, Scott S AU - Kobs Nawotniak, Shannon E AU - Sears, Derek W G AU - Garry, W Brent AU - Haberle, Christopher W AU - Bleacher, Jacob E AU - Lim, Darlene S S AU - Heldmann, Jennifer L AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 2846 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - United States KW - volcanic rocks KW - igneous rocks KW - Mars KW - Rima Hyginus KW - shallow depth KW - volcanic features KW - Cyane Fossae KW - King's Bowl KW - Idaho KW - rilles KW - Moon KW - pits KW - fissures KW - ejecta KW - pit craters KW - grabens KW - terrestrial planets KW - morphology KW - pyroclastics KW - planets KW - volatiles KW - intrusions KW - dikes KW - eruptions KW - natural analogs KW - phreatic eruptions KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832619224?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=King%27s+Bowl%2C+Idaho%3B+a+volcanic+analog+for+fissure+eruptions%2C+pit+craters+and+dike+injection+along+Rima+Hyginus%2C+Moon%2C+and+Cyane+Fossae%2C+Mars&rft.au=Hughes%2C+Scott+S%3BKobs+Nawotniak%2C+Shannon+E%3BSears%2C+Derek+W+G%3BGarry%2C+W+Brent%3BHaberle%2C+Christopher+W%3BBleacher%2C+Jacob+E%3BLim%2C+Darlene+S+S%3BHeldmann%2C+Jennifer+L%3BAnonymous&rft.aulast=Hughes&rft.aufirst=Scott&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/2846.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - Number of references - 18 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Cyane Fossae; dikes; ejecta; eruptions; fissures; grabens; Idaho; igneous rocks; intrusions; King's Bowl; Mars; Moon; morphology; natural analogs; phreatic eruptions; pit craters; pits; planets; pyroclastics; rilles; Rima Hyginus; shallow depth; terrestrial planets; United States; volatiles; volcanic features; volcanic rocks ER - TY - JOUR T1 - MAVEN data-model comparisons of planetary ions AN - 1832613493; 725459-60 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Curry, S M AU - Luhmann, J G AU - Dong, C F AU - Leblanc, F AU - Modolo, R AU - Ma, Y AU - Halekas, J AU - McFadden, J AU - Mitchell, D AU - Larson, D AU - Connerney, J AU - Espley, J AU - Lillis, R AU - Brain, D AU - Fang, X AU - Livi, R AU - Hara, T AU - Harada, Y AU - Jakoskyk, B M AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 2389 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - water KW - MAVEN Mission KW - magnetohydrodynamics KW - dissociation KW - oxygen KW - atmosphere KW - Mars KW - simulation KW - ions KW - magnetic field KW - terrestrial planets KW - models KW - planets KW - hydrogen KW - pick-up ions KW - photodissociation KW - orbital observations KW - atmospheric escape KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832613493?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=MAVEN+data-model+comparisons+of+planetary+ions&rft.au=Curry%2C+S+M%3BLuhmann%2C+J+G%3BDong%2C+C+F%3BLeblanc%2C+F%3BModolo%2C+R%3BMa%2C+Y%3BHalekas%2C+J%3BMcFadden%2C+J%3BMitchell%2C+D%3BLarson%2C+D%3BConnerney%2C+J%3BEspley%2C+J%3BLillis%2C+R%3BBrain%2C+D%3BFang%2C+X%3BLivi%2C+R%3BHara%2C+T%3BHarada%2C+Y%3BJakoskyk%2C+B+M%3BAnonymous&rft.aulast=Curry&rft.aufirst=S&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/2389.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - Number of references - 10 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Aug. 2, 2016 N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - atmosphere; atmospheric escape; dissociation; hydrogen; ions; magnetic field; magnetohydrodynamics; Mars; MAVEN Mission; models; orbital observations; oxygen; photodissociation; pick-up ions; planets; simulation; terrestrial planets; water ER - TY - JOUR T1 - Trends in Mars thermospheric density and temperature structure obtained from MAVEN ACC/RW and NGIMS datasets; interpretation using global models AN - 1832613016; 725459-57 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Bougher, S W AU - Tolson, R H AU - Mahaffy, Paul R AU - Johnston, T E AU - Olsen, K AU - Bell, J M AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 2062 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - NGIMS instrument KW - ionosphere KW - MAVEN Mission KW - density KW - global KW - atmosphere KW - Mars KW - simulation KW - ions KW - temperature KW - terrestrial planets KW - models KW - planets KW - thermosphere KW - atmospheric escape KW - winds KW - Neutral Gas and Ion Mass Spectrometer KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832613016?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Trends+in+Mars+thermospheric+density+and+temperature+structure+obtained+from+MAVEN+ACC%2FRW+and+NGIMS+datasets%3B+interpretation+using+global+models&rft.au=Bougher%2C+S+W%3BTolson%2C+R+H%3BMahaffy%2C+Paul+R%3BJohnston%2C+T+E%3BOlsen%2C+K%3BBell%2C+J+M%3BAnonymous&rft.aulast=Bougher&rft.aufirst=S&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/2062.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - Number of references - 7 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Aug. 1, 2016 N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - atmosphere; atmospheric escape; density; global; ionosphere; ions; Mars; MAVEN Mission; models; Neutral Gas and Ion Mass Spectrometer; NGIMS instrument; planets; simulation; temperature; terrestrial planets; thermosphere; winds ER - TY - JOUR T1 - Long awaited fundamental measurement of the Martian upper atmosphere from the Langmuir Probe and Waves instrument on the MAVEN Mission AN - 1832611311; 725459-10 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Andersson, L AU - Ergun, R E AU - Delory, G T AU - Morooka, M W AU - Fowler, C M AU - McEnulty, T AU - Weber, T AU - Eriksson, A I AU - Andrews, D AU - Malaspina, D AU - Crary, F AU - Mitchell, D L AU - McFadden, J P AU - Halekas, J S AU - Larson, D AU - Connerney, J E P AU - Espley, J AU - Eparvier, F AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 2337 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - Langmuire Probe and Waves instrument KW - MAVEN Mission KW - density KW - electrical field KW - atmosphere KW - Mars KW - temperature KW - terrestrial planets KW - planets KW - oscillations KW - dynamics KW - electrons KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832611311?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Long+awaited+fundamental+measurement+of+the+Martian+upper+atmosphere+from+the+Langmuir+Probe+and+Waves+instrument+on+the+MAVEN+Mission&rft.au=Andersson%2C+L%3BErgun%2C+R+E%3BDelory%2C+G+T%3BMorooka%2C+M+W%3BFowler%2C+C+M%3BMcEnulty%2C+T%3BWeber%2C+T%3BEriksson%2C+A+I%3BAndrews%2C+D%3BMalaspina%2C+D%3BCrary%2C+F%3BMitchell%2C+D+L%3BMcFadden%2C+J+P%3BHalekas%2C+J+S%3BLarson%2C+D%3BConnerney%2C+J+E+P%3BEspley%2C+J%3BEparvier%2C+F%3BAnonymous&rft.aulast=Andersson&rft.aufirst=L&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/2337.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - Number of references - 3 N1 - PubXState - TX N1 - SuppNotes - Accessed on June 29, 2016 N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - atmosphere; density; dynamics; electrical field; electrons; Langmuire Probe and Waves instrument; Mars; MAVEN Mission; oscillations; planets; temperature; terrestrial planets ER - TY - BOOK T1 - Urban inversion of CO (sub 2) emissions at high resolution over Indianapolis AN - 1832605428; 776940-2 JF - 43rd global monitoring annual conference AU - Lauvaux, T AU - Deng, A J AU - Miles, N AU - Davis, K J AU - Richardson, S AU - Cambaliza, M O AU - Gaudet, B AU - Gurney, K R AU - Huang, J AU - Karion, A AU - Oda, T AU - Patarasuk, R AU - Razlivanov, I AU - Sarmiento, D AU - Shepson, P B AU - Sweeney, C AU - Turnbull, J C AU - Whetstone, J AU - Wu, K Y1 - 2015 PY - 2015 DA - 2015 PB - NOAA Earth System Research Laboratory, Global Monitoring Division, Boulder, CO KW - United States KW - organic compounds KW - monitoring KW - methane KW - hydrocarbons KW - aliphatic hydrocarbons KW - greenhouse gases KW - alkanes KW - emissivity KW - carbon dioxide KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832605428?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef+In+Process&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Lauvaux%2C+T%3BDeng%2C+A+J%3BMiles%2C+N%3BDavis%2C+K+J%3BRichardson%2C+S%3BCambaliza%2C+M+O%3BGaudet%2C+B%3BGurney%2C+K+R%3BHuang%2C+J%3BKarion%2C+A%3BOda%2C+T%3BPatarasuk%2C+R%3BRazlivanov%2C+I%3BSarmiento%2C+D%3BShepson%2C+P+B%3BSweeney%2C+C%3BTurnbull%2C+J+C%3BWhetstone%2C+J%3BWu%2C+K&rft.aulast=Lauvaux&rft.aufirst=T&rft.date=2015-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Urban+inversion+of+CO+%28sub+2%29+emissions+at+high+resolution+over+Indianapolis&rft.title=Urban+inversion+of+CO+%28sub+2%29+emissions+at+high+resolution+over+Indianapolis&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 43rd global monitoring annual conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by Institute of Geological and Nuclear Sciences Limited (GNS Science), Lower Hutt, New Zealand N1 - PubXState - CO N1 - Last updated - 2017-01-24 ER - TY - JOUR T1 - Results of a Hubble Space Telescope search for natural satellites of dwarf planet 1 Ceres AN - 1828846805; 2016-085708 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - DeMario, B E AU - Schmidt, B E AU - Mutchler, M AU - Li, J Y AU - McFadden, L A AU - McLean, B AU - Russell, C T AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 1622 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - brightness KW - imagery KW - Ceres KW - asteroids KW - telescope methods KW - Hubble Space Telescope KW - satellites KW - dwarf planets KW - size KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1828846805?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Results+of+a+Hubble+Space+Telescope+search+for+natural+satellites+of+dwarf+planet+1+Ceres&rft.au=DeMario%2C+B+E%3BSchmidt%2C+B+E%3BMutchler%2C+M%3BLi%2C+J+Y%3BMcFadden%2C+L+A%3BMcLean%2C+B%3BRussell%2C+C+T%3BAnonymous&rft.aulast=DeMario&rft.aufirst=B&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/1622.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 5 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on March 3, 2016 N1 - Last updated - 2016-10-25 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - asteroids; brightness; Ceres; dwarf planets; Hubble Space Telescope; imagery; satellites; size; telescope methods ER - TY - JOUR T1 - Dawn at Vesta; composition of the northern regions AN - 1828845661; 2016-085697 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Combe, J Philippe AU - McCord, T B AU - McFadden, L A AU - Ieva, S AU - Tosi, Federico AU - Longobardo, Andrea AU - De Sanctis, M C AU - Ammannito, E AU - Frigeri, Alessandro AU - Raymond, C A AU - Russell, C T AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 2098 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - silicates KW - hydrates KW - pigeonite KW - Arruntia Crater KW - stony meteorites KW - impact features KW - asteroids KW - Rheasilvia Basin KW - optical spectra KW - olivine group KW - Dawn Mission KW - infrared spectra KW - meteorites KW - pyroxene group KW - hypersthene KW - clinopyroxene KW - olivine KW - orthosilicates KW - composition KW - spectra KW - diopside KW - chain silicates KW - Vesta Asteroid KW - Veneneia Basin KW - differentiation KW - diogenite KW - Mamilia Crater KW - ejecta KW - achondrites KW - nesosilicates KW - Bellicia Crater KW - Pomponia Crater KW - planetary interiors KW - eucrite KW - impact craters KW - orthopyroxene KW - crust KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1828845661?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Dawn+at+Vesta%3B+composition+of+the+northern+regions&rft.au=Combe%2C+J+Philippe%3BMcCord%2C+T+B%3BMcFadden%2C+L+A%3BIeva%2C+S%3BTosi%2C+Federico%3BLongobardo%2C+Andrea%3BDe+Sanctis%2C+M+C%3BAmmannito%2C+E%3BFrigeri%2C+Alessandro%3BRaymond%2C+C+A%3BRussell%2C+C+T%3BAnonymous&rft.aulast=Combe&rft.aufirst=J&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/2098.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 13 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on March 1, 2016 N1 - Last updated - 2016-10-25 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - achondrites; Arruntia Crater; asteroids; Bellicia Crater; chain silicates; clinopyroxene; composition; crust; Dawn Mission; differentiation; diogenite; diopside; ejecta; eucrite; hydrates; hypersthene; impact craters; impact features; infrared spectra; Mamilia Crater; meteorites; nesosilicates; olivine; olivine group; optical spectra; orthopyroxene; orthosilicates; pigeonite; planetary interiors; Pomponia Crater; pyroxene group; Rheasilvia Basin; silicates; spectra; stony meteorites; Veneneia Basin; Vesta Asteroid ER - TY - JOUR T1 - Experimentally shocked and altered basalt; laboratory analogs for calibration of Mars remote sensing and in situ data AN - 1824216375; 2016-084322 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Bell, M S AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 2475 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - silicates KW - alteration KW - volcanic rocks KW - X-ray diffraction data KW - igneous rocks KW - Mars KW - calibration KW - Mars Exploration Rover KW - laboratory studies KW - aluminosilicates KW - CheMin instrument KW - basalts KW - spectra KW - Mossbauer spectra KW - experimental studies KW - in situ KW - CRISM KW - Opportunity Rover KW - phosphates KW - metamorphism KW - terrestrial planets KW - planets KW - chlorapatite KW - natural analogs KW - shock metamorphism KW - remote sensing KW - maskelynite KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1824216375?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Experimentally+shocked+and+altered+basalt%3B+laboratory+analogs+for+calibration+of+Mars+remote+sensing+and+in+situ+data&rft.au=Bell%2C+M+S%3BAnonymous&rft.aulast=Bell&rft.aufirst=M&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/2475.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 6 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on April 1, 2016 N1 - Last updated - 2016-09-29 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - alteration; aluminosilicates; basalts; calibration; CheMin instrument; chlorapatite; CRISM; experimental studies; igneous rocks; in situ; laboratory studies; Mars; Mars Exploration Rover; maskelynite; metamorphism; Mossbauer spectra; natural analogs; Opportunity Rover; phosphates; planets; remote sensing; shock metamorphism; silicates; spectra; terrestrial planets; volcanic rocks; X-ray diffraction data ER - TY - JOUR T1 - (super 26) Al and (super 10) Be activities in Chelyabinsk (LL5); implications for cosmic-ray exposure history AN - 1824216122; 2016-084336 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Park, J AU - Herzog, G F AU - Nyquist, L E AU - Shih, C Y AU - Haba, M K AU - Nagao, K AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 1453 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - ordinary chondrites KW - irradiation KW - stony meteorites KW - isotopes KW - mass spectra KW - He-3 KW - meteoroids KW - exposure age KW - stable isotopes KW - Chelyabinsk Meteorite KW - accelerator mass spectra KW - meteorites KW - Al-26 KW - radioactive isotopes KW - noble gases KW - aluminum KW - helium KW - spectra KW - chondrites KW - activity KW - alkaline earth metals KW - Be-10 KW - LL chondrites KW - size KW - metals KW - beryllium KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1824216122?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=%28super+26%29+Al+and+%28super+10%29+Be+activities+in+Chelyabinsk+%28LL5%29%3B+implications+for+cosmic-ray+exposure+history&rft.au=Park%2C+J%3BHerzog%2C+G+F%3BNyquist%2C+L+E%3BShih%2C+C+Y%3BHaba%2C+M+K%3BNagao%2C+K%3BAnonymous&rft.aulast=Park&rft.aufirst=J&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/1453.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 12 N1 - PubXState - TX N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Accessed on April 7, 2016 N1 - Last updated - 2016-09-29 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - accelerator mass spectra; activity; Al-26; alkaline earth metals; aluminum; Be-10; beryllium; Chelyabinsk Meteorite; chondrites; exposure age; He-3; helium; irradiation; isotopes; LL chondrites; mass spectra; metals; meteorites; meteoroids; noble gases; ordinary chondrites; radioactive isotopes; size; spectra; stable isotopes; stony meteorites ER - TY - JOUR T1 - Solar ion processing of Itokawa grains; constraints on surface exposure times AN - 1824215285; 2016-084349 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Christoffersen, Roy AU - Keller, L P AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 2084 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - silicates KW - Itokawa Asteroid KW - irradiation KW - asteroids KW - solar wind KW - olivine group KW - ions KW - exposure age KW - weathering KW - nesosilicates KW - models KW - space weathering KW - grains KW - noble gases KW - hydrogen KW - olivine KW - orthosilicates KW - S-type asteroids KW - helium KW - amorphization KW - regolith KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1824215285?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Solar+ion+processing+of+Itokawa+grains%3B+constraints+on+surface+exposure+times&rft.au=Christoffersen%2C+Roy%3BKeller%2C+L+P%3BAnonymous&rft.aulast=Christoffersen&rft.aufirst=Roy&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/2084.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 12 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on April 11, 2016 N1 - Last updated - 2016-09-29 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - amorphization; asteroids; exposure age; grains; helium; hydrogen; ions; irradiation; Itokawa Asteroid; models; nesosilicates; noble gases; olivine; olivine group; orthosilicates; regolith; S-type asteroids; silicates; solar wind; space weathering; weathering ER - TY - JOUR T1 - Stratigraphy and physical properties of southeastern Amazonis Planitia and the eastern Medusae Fossae Formation AN - 1824215205; 2016-084283 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Carter, Lynn M AU - Orosei, Roberto AU - Watters, Thomas R AU - Campbell, Bruce A AU - Plaut, Jeffrey J AU - Morgan, Gareth A AU - Nolan, Michael C AU - Phillips, Roger J AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 2035 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - volcanic rocks KW - lava flows KW - igneous rocks KW - Amazonis Mensa KW - SHARAD KW - radar methods KW - channels KW - Mars KW - Amazonis Planitia KW - Hesperian KW - terrestrial planets KW - pyroclastics KW - planets KW - physical properties KW - Medusae Fossae Formation KW - Amazonian KW - Gordii Dorsum KW - stratigraphic units KW - MARSIS KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1824215205?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Stratigraphy+and+physical+properties+of+southeastern+Amazonis+Planitia+and+the+eastern+Medusae+Fossae+Formation&rft.au=Carter%2C+Lynn+M%3BOrosei%2C+Roberto%3BWatters%2C+Thomas+R%3BCampbell%2C+Bruce+A%3BPlaut%2C+Jeffrey+J%3BMorgan%2C+Gareth+A%3BNolan%2C+Michael+C%3BPhillips%2C+Roger+J%3BAnonymous&rft.aulast=Carter&rft.aufirst=Lynn&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/2035.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 11 N1 - PubXState - TX N1 - Document feature - illus. incl. sketch map N1 - SuppNotes - Accessed on March 22, 2016 N1 - Last updated - 2016-09-29 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Amazonian; Amazonis Mensa; Amazonis Planitia; channels; Gordii Dorsum; Hesperian; igneous rocks; lava flows; Mars; MARSIS; Medusae Fossae Formation; physical properties; planets; pyroclastics; radar methods; SHARAD; stratigraphic units; terrestrial planets; volcanic rocks ER - TY - JOUR T1 - Pahrump soils and comparison with previous aeolian deposits AN - 1824215153; 2016-084266 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Cousin, Agnes AU - Schroeder, S AU - Meslin, P Y AU - Gasnault, O AU - Forni, O AU - Clark, B AU - Rapin, W AU - Lasue, Jeremie AU - Fressinet, C AU - Bridges, N AU - Clegg, S M AU - Fraeman, A A AU - Blank, J G AU - Maurice, Sylvestre AU - Wiens, Roger C AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 2767 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - eolian features KW - calcium KW - enrichment KW - halogens KW - Mars KW - emission spectra KW - Hidden Valley KW - Curiosity Rover KW - LIBS spectra KW - spectra KW - chemical composition KW - chromium KW - soils KW - chlorine KW - ChemCam instrument KW - alkaline earth metals KW - Dingo Gap KW - grain size KW - Rocknest KW - Pahrump Hills KW - terrestrial planets KW - planets KW - metals KW - hydrogen KW - fine-grained materials KW - Mars Science Laboratory KW - strontium KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1824215153?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Pahrump+soils+and+comparison+with+previous+aeolian+deposits&rft.au=Cousin%2C+Agnes%3BSchroeder%2C+S%3BMeslin%2C+P+Y%3BGasnault%2C+O%3BForni%2C+O%3BClark%2C+B%3BRapin%2C+W%3BLasue%2C+Jeremie%3BFressinet%2C+C%3BBridges%2C+N%3BClegg%2C+S+M%3BFraeman%2C+A+A%3BBlank%2C+J+G%3BMaurice%2C+Sylvestre%3BWiens%2C+Roger+C%3BAnonymous&rft.aulast=Cousin&rft.aufirst=Agnes&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/2767.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 11 N1 - PubXState - TX N1 - Document feature - illus. incl. 1 table, sketch map N1 - SuppNotes - Accessed on March 17, 2016 N1 - Last updated - 2016-09-29 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - alkaline earth metals; calcium; ChemCam instrument; chemical composition; chlorine; chromium; Curiosity Rover; Dingo Gap; emission spectra; enrichment; eolian features; fine-grained materials; grain size; halogens; Hidden Valley; hydrogen; LIBS spectra; Mars; Mars Science Laboratory; metals; Pahrump Hills; planets; Rocknest; soils; spectra; strontium; terrestrial planets ER - TY - JOUR T1 - The size and fragmentation of the nucleus of Comet C/2012 S1 (ISON) AN - 1824215101; 2016-084329 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Steckloff, J K AU - Keane, J AU - Knight, M M AU - Kleyna, J AU - Milam, S N AU - Coulson, I AU - Meech, K J AU - Jacobson, S A AU - Melosh, H Jay AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 2723 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - sublimation KW - volatiles KW - fragmentation KW - comets KW - Comet ISON KW - cometary nuclei KW - Churyumov-Gerasimenko Comet KW - size KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1824215101?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research%3A+Planets&rft.atitle=Surface+energy+budget+and+thermal+inertia+at+Gale+Crater%3B+calculations+from+ground-based+measurements&rft.au=Martinez%2C+G+M%3BRenno%2C+N%3BFischer%2C+E%3BBorlina%2C+C+S%3BHallet%2C+B%3BTorre+Juarez%2C+M%3BVasavada%2C+A+R%3BRamos%2C+M%3BHamilton%2C+V%3BGomez-Elvira%2C+J%3BHaberle%2C+R+M&rft.aulast=Martinez&rft.aufirst=G&rft.date=2014-08-01&rft.volume=119&rft.issue=8&rft.spage=1822&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Planets&rft.issn=21699097&rft_id=info:doi/10.1002%2F2014JE004618 L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/2723.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 10 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on April 4, 2016 N1 - Last updated - 2016-09-29 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Churyumov-Gerasimenko Comet; Comet ISON; cometary nuclei; comets; fragmentation; size; sublimation; volatiles ER - TY - JOUR T1 - MAVEN observations of Marsward ion flux in the near Mars magnetotail AN - 1824214698; 2016-081966 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Harada, Y AU - Halekas, J S AU - Mitchell, D L AU - McFadden, J P AU - Connerney, J E P AU - Espley, J R AU - DiBraccio, G A AU - Ergun, R E AU - Andersson, L AU - Hara, T AU - Curry, S M AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 1586 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - ionosphere KW - MAVEN Mission KW - magnetotail KW - altitude KW - solar wind KW - magnetosphere KW - Mars KW - ions KW - magnetic field KW - terrestrial planets KW - planets KW - atmospheric escape KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1824214698?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=MAVEN+observations+of+Marsward+ion+flux+in+the+near+Mars+magnetotail&rft.au=Harada%2C+Y%3BHalekas%2C+J+S%3BMitchell%2C+D+L%3BMcFadden%2C+J+P%3BConnerney%2C+J+E+P%3BEspley%2C+J+R%3BDiBraccio%2C+G+A%3BErgun%2C+R+E%3BAndersson%2C+L%3BHara%2C+T%3BCurry%2C+S+M%3BAnonymous&rft.aulast=Harada&rft.aufirst=Y&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/1586.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 5 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Jan. 29, 2016 N1 - Last updated - 2016-09-29 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - altitude; atmospheric escape; ionosphere; ions; magnetic field; magnetosphere; magnetotail; Mars; MAVEN Mission; planets; solar wind; terrestrial planets ER - TY - JOUR T1 - Insights for chemistry at Mars; integrating atmospheric measurements from MAVEN NGIMS and IUVS into a 1-D photochemical model AN - 1824214419; 2016-081990 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Matta, M AU - Mahaffy, Paul R AU - Evans, J S AU - Schneider, N M AU - McClintock, B AU - Stewart, I AU - Holsclaw, G M AU - Clarke, J T AU - Deighan, Justin AU - Jakosky, Bruce M AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 2384 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - NGIMS instrument KW - MAVEN Mission KW - one-dimensional models KW - altitude KW - photochemistry KW - atmosphere KW - Mars KW - ions KW - carbon dioxide KW - terrestrial planets KW - planets KW - Imaging and Ultraviolet Spectrograph KW - IUVS instrument KW - Mars Atmosphere and Volcatile Evolution Mission KW - Neutral Gas and Ion Mass Spectrometer KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1824214419?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Insights+for+chemistry+at+Mars%3B+integrating+atmospheric+measurements+from+MAVEN+NGIMS+and+IUVS+into+a+1-D+photochemical+model&rft.au=Matta%2C+M%3BMahaffy%2C+Paul+R%3BEvans%2C+J+S%3BSchneider%2C+N+M%3BMcClintock%2C+B%3BStewart%2C+I%3BHolsclaw%2C+G+M%3BClarke%2C+J+T%3BDeighan%2C+Justin%3BJakosky%2C+Bruce+M%3BAnonymous&rft.aulast=Matta&rft.aufirst=M&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/2384.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 2 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Feb. 8, 2016 N1 - Last updated - 2016-09-29 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - altitude; atmosphere; carbon dioxide; Imaging and Ultraviolet Spectrograph; ions; IUVS instrument; Mars; Mars Atmosphere and Volcatile Evolution Mission; MAVEN Mission; Neutral Gas and Ion Mass Spectrometer; NGIMS instrument; one-dimensional models; photochemistry; planets; terrestrial planets ER - TY - JOUR T1 - MAVEN observations of the effects of Comet Siding Spring on the Mars atmosphere AN - 1824213812; 2016-081959 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Yelle, Roger V AU - Benna, M AU - Mahaffy, Paul R AU - Elrod, Meredith AU - Epsley, J AU - Rahmati, A AU - Cravens, T E AU - Larson, D AU - Jakosky, Bruce M AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 2534 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - Siding Spring Comet KW - MAVEN Mission KW - solar wind KW - magnetic anomalies KW - atmosphere KW - Mars KW - ions KW - magnetic field KW - comae KW - temperature KW - terrestrial planets KW - planets KW - comets KW - Mars Atmosphere and Volatile Evolution Mission KW - velocity KW - orbital observations KW - energy KW - electrons KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1824213812?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=MAVEN+observations+of+the+effects+of+Comet+Siding+Spring+on+the+Mars+atmosphere&rft.au=Yelle%2C+Roger+V%3BBenna%2C+M%3BMahaffy%2C+Paul+R%3BElrod%2C+Meredith%3BEpsley%2C+J%3BRahmati%2C+A%3BCravens%2C+T+E%3BLarson%2C+D%3BJakosky%2C+Bruce+M%3BAnonymous&rft.aulast=Yelle&rft.aufirst=Roger&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/2534.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - PubXState - TX N1 - SuppNotes - Accessed on Jan. 28, 2016 N1 - Last updated - 2016-09-29 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - atmosphere; comae; comets; electrons; energy; ions; magnetic anomalies; magnetic field; Mars; Mars Atmosphere and Volatile Evolution Mission; MAVEN Mission; orbital observations; planets; Siding Spring Comet; solar wind; temperature; terrestrial planets; velocity ER - TY - JOUR T1 - Density structures within the Martian ionosphere from the Langmuir Probe and Waves instrument on the MAVEN Mission AN - 1824213507; 2016-081970 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - McEnulty, T AU - Andrews, D AU - Andersson, L AU - Ergun, R E AU - Delory, G T AU - Fowler, C M AU - Mooroka, M W AU - Weber, T AU - Eriksson, A I AU - Mitchell, D L AU - McFadden, J P AU - Halekas, J S AU - Larson, D AU - Connerney, J E P AU - Espley, J R AU - Eparvier, F G AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 1578 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - ionosphere KW - MAVEN Mission KW - density KW - atmosphere KW - Mars KW - temperature KW - terrestrial planets KW - planets KW - Langmuir Probe and Waves instrument KW - electron density KW - orbital observations KW - electrons KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1824213507?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Density+structures+within+the+Martian+ionosphere+from+the+Langmuir+Probe+and+Waves+instrument+on+the+MAVEN+Mission&rft.au=McEnulty%2C+T%3BAndrews%2C+D%3BAndersson%2C+L%3BErgun%2C+R+E%3BDelory%2C+G+T%3BFowler%2C+C+M%3BMooroka%2C+M+W%3BWeber%2C+T%3BEriksson%2C+A+I%3BMitchell%2C+D+L%3BMcFadden%2C+J+P%3BHalekas%2C+J+S%3BLarson%2C+D%3BConnerney%2C+J+E+P%3BEspley%2C+J+R%3BEparvier%2C+F+G%3BAnonymous&rft.aulast=McEnulty&rft.aufirst=T&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/1578.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 3 N1 - PubXState - TX N1 - SuppNotes - Accessed on Jan. 29, 2016 N1 - Last updated - 2016-09-29 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - atmosphere; density; electron density; electrons; ionosphere; Langmuir Probe and Waves instrument; Mars; MAVEN Mission; orbital observations; planets; temperature; terrestrial planets ER - TY - JOUR T1 - Dust observations using common mode measurements from the Langmuir Probe and Waves instrument on the MAVEN Mission AN - 1824213418; 2016-081962 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Weber, T AU - Andersson, L AU - Malaspina, D AU - Crary, Frank J AU - Ergun, R E AU - Delory, G T AU - Mooroka, M W AU - Fowler, C M AU - McEnulty, T AU - Eriksson, A I AU - Andrews, D AU - Mitchell, D L AU - McFadden, J P AU - Halekas, J S AU - Larson, D AU - Connerney, J E P AU - Espley, J R AU - Eparvier, F G AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 2431 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - Phobos Satellite KW - MAVEN Mission KW - electrical field KW - atmosphere KW - Mars KW - interplanetary dust KW - terrestrial planets KW - planets KW - planetary rings KW - cosmic dust KW - Langmuir Probe and Waves instrument KW - orbital observations KW - satellites KW - Deimos Satellite KW - nanoparticles KW - atmospheric escape KW - electrons KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1824213418?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Dust+observations+using+common+mode+measurements+from+the+Langmuir+Probe+and+Waves+instrument+on+the+MAVEN+Mission&rft.au=Weber%2C+T%3BAndersson%2C+L%3BMalaspina%2C+D%3BCrary%2C+Frank+J%3BErgun%2C+R+E%3BDelory%2C+G+T%3BMooroka%2C+M+W%3BFowler%2C+C+M%3BMcEnulty%2C+T%3BEriksson%2C+A+I%3BAndrews%2C+D%3BMitchell%2C+D+L%3BMcFadden%2C+J+P%3BHalekas%2C+J+S%3BLarson%2C+D%3BConnerney%2C+J+E+P%3BEspley%2C+J+R%3BEparvier%2C+F+G%3BAnonymous&rft.aulast=Weber&rft.aufirst=T&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/2431.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 6 N1 - PubXState - TX N1 - SuppNotes - Accessed on Jan. 28, 2016 N1 - Last updated - 2016-09-29 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - atmosphere; atmospheric escape; cosmic dust; Deimos Satellite; electrical field; electrons; interplanetary dust; Langmuir Probe and Waves instrument; Mars; MAVEN Mission; nanoparticles; orbital observations; Phobos Satellite; planetary rings; planets; satellites; terrestrial planets ER - TY - JOUR T1 - O/CO (sub 2) ratio in the thermosphere and implications for the ionosphere of Mars; first results from MAVEN AN - 1824212692; 2016-081988 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Fox, Jane L AU - Mahaffy, Paul R AU - Jakosky, Bruce M AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 2668 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - ionosphere KW - MAVEN Mission KW - oxygen KW - altitude KW - photochemistry KW - mass spectra KW - Mars KW - ions KW - gases KW - carbon dioxide KW - terrestrial planets KW - planets KW - thermosphere KW - mixing KW - spectra KW - Neutral Gas and Ion Mass Spectrometer KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1824212692?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=O%2FCO+%28sub+2%29+ratio+in+the+thermosphere+and+implications+for+the+ionosphere+of+Mars%3B+first+results+from+MAVEN&rft.au=Fox%2C+Jane+L%3BMahaffy%2C+Paul+R%3BJakosky%2C+Bruce+M%3BAnonymous&rft.aulast=Fox&rft.aufirst=Jane&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/2668.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 2 N1 - PubXState - TX N1 - SuppNotes - Accessed on Feb. 3, 2016 N1 - Last updated - 2016-09-29 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - altitude; carbon dioxide; gases; ionosphere; ions; Mars; mass spectra; MAVEN Mission; mixing; Neutral Gas and Ion Mass Spectrometer; oxygen; photochemistry; planets; spectra; terrestrial planets; thermosphere ER - TY - JOUR T1 - Noachian impact ejecta on Murray Ridge and pre-impact rocks on Wdowiak Ridge, Endeavour Crater, Mars; Opportunity observations AN - 1824212681; 2016-082026 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Mittlefehldt, David W AU - Gellert, R AU - Ming, D W AU - Morris, R V AU - Schroeder, Christian AU - Yen, A S AU - Farrand, W H AU - Arvidson, R E AU - Franklin, B J AU - Grant, J A AU - Herkenhoff, K E AU - Jolliff, B L AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 2705 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - silicates KW - alteration KW - Shoemaker Formation KW - Noachian KW - Murray Ridge KW - Mars KW - manganese KW - iron KW - Mars Exploration Rover KW - Alpha Particle X-Ray Spectrometer KW - metamorphic rocks KW - Wdowiak Ridge KW - PanCam KW - breccia KW - impactites KW - CRISM KW - Opportunity Rover KW - smectite KW - impact breccia KW - impacts KW - ejecta KW - Cape Tribulation KW - clay minerals KW - Cape York KW - terrestrial planets KW - planets KW - metals KW - sheet silicates KW - Matijevic Formation KW - Endeavour Crater KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1824212681?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Noachian+impact+ejecta+on+Murray+Ridge+and+pre-impact+rocks+on+Wdowiak+Ridge%2C+Endeavour+Crater%2C+Mars%3B+Opportunity+observations&rft.au=Mittlefehldt%2C+David+W%3BGellert%2C+R%3BMing%2C+D+W%3BMorris%2C+R+V%3BSchroeder%2C+Christian%3BYen%2C+A+S%3BFarrand%2C+W+H%3BArvidson%2C+R+E%3BFranklin%2C+B+J%3BGrant%2C+J+A%3BHerkenhoff%2C+K+E%3BJolliff%2C+B+L%3BAnonymous&rft.aulast=Mittlefehldt&rft.aufirst=David&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/2705.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 8 N1 - PubXState - TX N1 - Document feature - illus. incl. sketch map N1 - SuppNotes - Accessed on Feb. 23, 2016 N1 - Last updated - 2016-09-29 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Alpha Particle X-Ray Spectrometer; alteration; breccia; Cape Tribulation; Cape York; clay minerals; CRISM; ejecta; Endeavour Crater; impact breccia; impactites; impacts; iron; manganese; Mars; Mars Exploration Rover; Matijevic Formation; metals; metamorphic rocks; Murray Ridge; Noachian; Opportunity Rover; PanCam; planets; sheet silicates; Shoemaker Formation; silicates; smectite; terrestrial planets; Wdowiak Ridge ER - TY - JOUR T1 - Comparing measured and modeled Ti isotope fractionation in CAI SJ101 and implications for the origin of CAIs AN - 1819893835; 2016-077738 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Jordan, M K AU - Kohl, I E AU - Young, E D AU - Simon, J I AU - Jacobsen, S B AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 2472 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - calcium KW - isotope fractionation KW - magnesium KW - stony meteorites KW - isotopes KW - calcium-aluminum inclusions KW - mass spectra KW - Ti-49/Ti-47 KW - CV chondrites KW - silicon KW - stable isotopes KW - Allende Meteorite KW - meteorites KW - Mg-25/Mg-24 KW - inclusions KW - spectra KW - chondrites KW - alkaline earth metals KW - condensation KW - Si-29/Si-28 KW - isotope ratios KW - carbonaceous chondrites KW - solar nebula KW - models KW - ICP mass spectra KW - Ca-44/Ca-40 KW - titanium KW - metals KW - 05B:Petrology of meteorites and tektites KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1819893835?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Comparing+measured+and+modeled+Ti+isotope+fractionation+in+CAI+SJ101+and+implications+for+the+origin+of+CAIs&rft.au=Jordan%2C+M+K%3BKohl%2C+I+E%3BYoung%2C+E+D%3BSimon%2C+J+I%3BJacobsen%2C+S+B%3BAnonymous&rft.aulast=Jordan&rft.aufirst=M&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/2472.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 9 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Jan. 20, 2016 N1 - Last updated - 2016-09-16 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - alkaline earth metals; Allende Meteorite; Ca-44/Ca-40; calcium; calcium-aluminum inclusions; carbonaceous chondrites; chondrites; condensation; CV chondrites; ICP mass spectra; inclusions; isotope fractionation; isotope ratios; isotopes; magnesium; mass spectra; metals; meteorites; Mg-25/Mg-24; models; Si-29/Si-28; silicon; solar nebula; spectra; stable isotopes; stony meteorites; Ti-49/Ti-47; titanium ER - TY - JOUR T1 - Scaling of basin-sized impacts and implications for the Moon and early Earth AN - 1819893808; 2016-077754 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Potter, Ross W K AU - Kring, David A AU - Collins, Gareth S AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 1952 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - scale factor KW - cratering KW - impact features KW - igneous rocks KW - melts KW - temperature KW - scale models KW - plutonic rocks KW - basins KW - dunite KW - Hadean KW - Earth KW - Precambrian KW - numerical models KW - Moon KW - impacts KW - depth KW - anorthosite KW - ultramafics KW - size KW - hydrothermal conditions KW - transient phenomena KW - lunar crust KW - volume KW - peridotites KW - lunar mantle KW - impact craters KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1819893808?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Scaling+of+basin-sized+impacts+and+implications+for+the+Moon+and+early+Earth&rft.au=Potter%2C+Ross+W+K%3BKring%2C+David+A%3BCollins%2C+Gareth+S%3BAnonymous&rft.aulast=Potter&rft.aufirst=Ross+W&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/1952.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 26 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Jan. 22, 2016 N1 - Last updated - 2016-09-16 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - anorthosite; basins; cratering; depth; dunite; Earth; Hadean; hydrothermal conditions; igneous rocks; impact craters; impact features; impacts; lunar crust; lunar mantle; melts; Moon; numerical models; peridotites; plutonic rocks; Precambrian; scale factor; scale models; size; temperature; transient phenomena; ultramafics; volume ER - TY - JOUR T1 - An examination of LADEE UVS spatial variability associated with the Geminid meteor shower AN - 1807507740; 2016-065837 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Colaprete, A AU - Wooden, D H AU - Cook, A M AU - Shirley, M AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 2364 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - Ultraviolet-Visible Spectrometer KW - oxygen KW - optical spectra KW - alkali metals KW - atmosphere KW - LADEE KW - sodium KW - interplanetary dust KW - iron KW - exosphere KW - spatial variations KW - Lunar Atmosphere and Dust Environment Explorer KW - cosmic dust KW - titanium KW - metals KW - meteor showers KW - spectra KW - Geminids meteor shower KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1807507740?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=An+examination+of+LADEE+UVS+spatial+variability+associated+with+the+Geminid+meteor+shower&rft.au=Colaprete%2C+A%3BWooden%2C+D+H%3BCook%2C+A+M%3BShirley%2C+M%3BAnonymous&rft.aulast=Colaprete&rft.aufirst=A&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/2364.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 1 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Mar. 1, 2016 N1 - Last updated - 2016-11-17 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - alkali metals; atmosphere; cosmic dust; exosphere; Geminids meteor shower; interplanetary dust; iron; LADEE; Lunar Atmosphere and Dust Environment Explorer; metals; meteor showers; optical spectra; oxygen; sodium; spatial variations; spectra; titanium; Ultraviolet-Visible Spectrometer ER - TY - JOUR T1 - Resolving the surfaces of Mercury's low-reflectance polar deposits with images from MESSENGER's low-altitude campaign AN - 1807507738; 2016-065880 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Chabot, Nancy L AU - Ernst, Carolyn M AU - Mazarico, Erwan AU - Neumann, Gregory A AU - Denevi, Brett W AU - Nair, Hari AU - Blewett, David T AU - Murchie, Scott L AU - Head, James W, III AU - Solomon, Sean C AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 1274 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - water KW - surface properties KW - polar regions KW - imagery KW - Mercury Dual Imaging System KW - altitude KW - terrestrial planets KW - brightness KW - planets KW - volatiles KW - craters KW - ice KW - permanently shadowed regions KW - Mercury Planet KW - orbital observations KW - MESSENGER Mission KW - reflectance KW - Ensor Crater KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1807507738?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Resolving+the+surfaces+of+Mercury%27s+low-reflectance+polar+deposits+with+images+from+MESSENGER%27s+low-altitude+campaign&rft.au=Chabot%2C+Nancy+L%3BErnst%2C+Carolyn+M%3BMazarico%2C+Erwan%3BNeumann%2C+Gregory+A%3BDenevi%2C+Brett+W%3BNair%2C+Hari%3BBlewett%2C+David+T%3BMurchie%2C+Scott+L%3BHead%2C+James+W%2C+III%3BSolomon%2C+Sean+C%3BAnonymous&rft.aulast=Chabot&rft.aufirst=Nancy&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/1274.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 11 N1 - PubXState - TX N1 - Document feature - illus. incl. sketch map N1 - SuppNotes - Accessed on Mar. 16, 2016 N1 - Last updated - 2016-07-29 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - altitude; brightness; craters; Ensor Crater; ice; imagery; Mercury Dual Imaging System; Mercury Planet; MESSENGER Mission; orbital observations; permanently shadowed regions; planets; polar regions; reflectance; surface properties; terrestrial planets; volatiles; water ER - TY - JOUR T1 - First results at 67P/Churyumov-Gerasimenko with the Rosetta Plasma Consortium AN - 1807507654; 2016-065873 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Mandt, K E AU - Burch, J L AU - Carr, C AU - Eriksson, A I AU - Glassmeier, K H AU - Lebreton, J P AU - Nilsson, H AU - Beghin, C AU - Broiles, T W AU - Clark, G AU - Cupido, E AU - Edberg, N AU - Galand, M AU - Goldstein, R AU - Henri, P AU - Koenders, C AU - Mokashi, P AU - Nemeth, Z AU - Pollock, Caleb AU - Richter, I AU - Samara, M AU - Szego, K AU - Vallat, C AU - Vallieres, X AU - Volwerk, M AU - Wieser, G S AU - Winterhalter, D AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 2312 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - water KW - plasma KW - density KW - solar wind KW - ions KW - comae KW - Rosetta Plasma Consortium KW - pickup ions KW - spatial variations KW - cosmic dust KW - Rosetta Mission KW - comets KW - hydrogen KW - electrical charging KW - Churyumov-Gerasimenko Comet KW - cometary dust KW - electrons KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1807507654?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=First+results+at+67P%2FChuryumov-Gerasimenko+with+the+Rosetta+Plasma+Consortium&rft.au=Mandt%2C+K+E%3BBurch%2C+J+L%3BCarr%2C+C%3BEriksson%2C+A+I%3BGlassmeier%2C+K+H%3BLebreton%2C+J+P%3BNilsson%2C+H%3BBeghin%2C+C%3BBroiles%2C+T+W%3BClark%2C+G%3BCupido%2C+E%3BEdberg%2C+N%3BGaland%2C+M%3BGoldstein%2C+R%3BHenri%2C+P%3BKoenders%2C+C%3BMokashi%2C+P%3BNemeth%2C+Z%3BPollock%2C+Caleb%3BRichter%2C+I%3BSamara%2C+M%3BSzego%2C+K%3BVallat%2C+C%3BVallieres%2C+X%3BVolwerk%2C+M%3BWieser%2C+G+S%3BWinterhalter%2C+D%3BAnonymous&rft.aulast=Mandt&rft.aufirst=K&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/2312.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 8 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Mar. 15, 2016 N1 - Last updated - 2016-07-29 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Churyumov-Gerasimenko Comet; comae; cometary dust; comets; cosmic dust; density; electrical charging; electrons; hydrogen; ions; pickup ions; plasma; Rosetta Mission; Rosetta Plasma Consortium; solar wind; spatial variations; water ER - TY - JOUR T1 - Investigating CO (sub 2) reservoirs at Gale Crater and evidence for a dense early atmosphere AN - 1807507597; 2016-065859 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Niles, Paul B AU - Archer, P D, Jr AU - Heil, E AU - Eigenbrode, J AU - McAdam, Amy C AU - Sutter, B AU - Franz, Heather B AU - Navarro-Gonzalez, R AU - Ming, D AU - Mahaffy, P R AU - Martin-Torres, F J AU - Zorzano, M AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 2840 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - soils KW - oxygen KW - Noachian KW - paleoatmosphere KW - photochemistry KW - Mars KW - oxalates KW - Hesperian KW - temperature KW - Gale Crater KW - carbon dioxide KW - terrestrial planets KW - planets KW - Sample Analysis at Mars KW - pyrolysis KW - carbon KW - sediments KW - Mars Science Laboratory KW - organic carbon KW - chemical composition KW - carbonates KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1807507597?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Investigating+CO+%28sub+2%29+reservoirs+at+Gale+Crater+and+evidence+for+a+dense+early+atmosphere&rft.au=Niles%2C+Paul+B%3BArcher%2C+P+D%2C+Jr%3BHeil%2C+E%3BEigenbrode%2C+J%3BMcAdam%2C+Amy+C%3BSutter%2C+B%3BFranz%2C+Heather+B%3BNavarro-Gonzalez%2C+R%3BMing%2C+D%3BMahaffy%2C+P+R%3BMartin-Torres%2C+F+J%3BZorzano%2C+M%3BAnonymous&rft.aulast=Niles&rft.aufirst=Paul&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/10.1017%2FS0954102013000710 L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/2840.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 13 N1 - PubXState - TX N1 - SuppNotes - Accessed on Mar. 10, 2016 N1 - Last updated - 2016-11-17 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - carbon; carbon dioxide; carbonates; chemical composition; Gale Crater; Hesperian; Mars; Mars Science Laboratory; Noachian; organic carbon; oxalates; oxygen; paleoatmosphere; photochemistry; planets; pyrolysis; Sample Analysis at Mars; sediments; soils; temperature; terrestrial planets ER - TY - JOUR T1 - Diagenetic crystal clusters and dendrites, lower Mount Sharp, Gale Crater AN - 1807506792; 2016-065855 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Kah, Linda C AU - Kronyak, R AU - Van Beek, J AU - Nachon, M AU - Mangold, N AU - Thompson, L AU - Wiens, R AU - Grotzinger, J AU - Farmer, J AU - Minitti, M E AU - Shieber, J AU - Oehler, D AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 1901 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - zinc KW - dendrites KW - Mars KW - crystal growth KW - Gale Crater KW - emission spectra KW - fractures KW - sedimentary rocks KW - Curiosity Rover KW - LIBS spectra KW - spectra KW - sedimentary structures KW - mudstone KW - magnesium sulfates KW - laminations KW - MAHLI KW - Pahrump Hills KW - Mars Hand Lens Imager KW - terrestrial planets KW - crystals KW - planets KW - planar bedding structures KW - metals KW - diagenesis KW - nickel KW - Mars Science Laboratory KW - Mount Sharp KW - clastic rocks KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1807506792?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Diagenetic+crystal+clusters+and+dendrites%2C+lower+Mount+Sharp%2C+Gale+Crater&rft.au=Kah%2C+Linda+C%3BKronyak%2C+R%3BVan+Beek%2C+J%3BNachon%2C+M%3BMangold%2C+N%3BThompson%2C+L%3BWiens%2C+R%3BGrotzinger%2C+J%3BFarmer%2C+J%3BMinitti%2C+M+E%3BShieber%2C+J%3BOehler%2C+D%3BAnonymous&rft.aulast=Kah&rft.aufirst=Linda&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/1901.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Mar. 8, 2016 N1 - Last updated - 2016-07-29 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - clastic rocks; crystal growth; crystals; Curiosity Rover; dendrites; diagenesis; emission spectra; fractures; Gale Crater; laminations; LIBS spectra; magnesium sulfates; MAHLI; Mars; Mars Hand Lens Imager; Mars Science Laboratory; metals; Mount Sharp; mudstone; nickel; Pahrump Hills; planar bedding structures; planets; sedimentary rocks; sedimentary structures; spectra; terrestrial planets; zinc ER - TY - JOUR T1 - The gravity field of Mercury after MESSENGER low-altitude campaign AN - 1807506592; 2016-065876 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Mazarico, Erwan M AU - Genova, Antonio AU - Goossens, Sander J AU - Lemoine, Frank G AU - Smith, David E AU - Zuber, Maria T AU - Neumann, Gregory A AU - Solomon, Sean C AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 1385 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - terrestrial planets KW - planets KW - gravity anomalies KW - gravity field KW - topography KW - Doppler effect KW - altitude KW - Mercury Planet KW - mapping KW - orbital observations KW - MESSENGER Mission KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1807506592?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=The+gravity+field+of+Mercury+after+MESSENGER+low-altitude+campaign&rft.au=Mazarico%2C+Erwan+M%3BGenova%2C+Antonio%3BGoossens%2C+Sander+J%3BLemoine%2C+Frank+G%3BSmith%2C+David+E%3BZuber%2C+Maria+T%3BNeumann%2C+Gregory+A%3BSolomon%2C+Sean+C%3BAnonymous&rft.aulast=Mazarico&rft.aufirst=Erwan&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/1385.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 5 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Mar. 15, 2016 N1 - Last updated - 2016-07-29 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - altitude; Doppler effect; gravity anomalies; gravity field; mapping; Mercury Planet; MESSENGER Mission; orbital observations; planets; terrestrial planets; topography ER - TY - JOUR T1 - First detection of dust in the lunar tail; LADEE UVS measurements AN - 1807505840; 2016-065834 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Cook, A M AU - Wooden, D H AU - Colaprete, A AU - Glenar, D A AU - Stubbs, Timothy J AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 2147 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - Moon KW - optical spectra KW - alkali metals KW - trajectories KW - electrical field KW - LADEE KW - electrostatic properties KW - sodium KW - meteoroids KW - impacts KW - interplanetary dust KW - ejecta KW - magnetic field KW - exosphere KW - Lunar Atmosphere and Dust Environment Explorer KW - cosmic dust KW - triboelectrification KW - detection KW - metals KW - ultraviolet spectra KW - lunar tail KW - spectra KW - nanoparticles KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1807505840?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=First+detection+of+dust+in+the+lunar+tail%3B+LADEE+UVS+measurements&rft.au=Cook%2C+A+M%3BWooden%2C+D+H%3BColaprete%2C+A%3BGlenar%2C+D+A%3BStubbs%2C+Timothy+J%3BAnonymous&rft.aulast=Cook&rft.aufirst=A&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/2147.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 5 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Feb. 29, 2016 N1 - Last updated - 2016-07-29 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - alkali metals; cosmic dust; detection; ejecta; electrical field; electrostatic properties; exosphere; impacts; interplanetary dust; LADEE; Lunar Atmosphere and Dust Environment Explorer; lunar tail; magnetic field; metals; meteoroids; Moon; nanoparticles; optical spectra; sodium; spectra; trajectories; triboelectrification; ultraviolet spectra ER - TY - JOUR T1 - High-resolution measurements of Mercury's surface composition with the MESSENGER X-ray spectrometer AN - 1807505828; 2016-065879 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Frank, Elizabeth A AU - Nittler, Larry R AU - Vorburger, Audrey H AU - Weider, Shoshana Z AU - Starr, Richard D AU - Solomon, Sean C AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 1949 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - calcium KW - surface properties KW - high-resolution methods KW - alkaline earth metals KW - magnesium KW - mapping KW - X-ray spectra KW - iron KW - measurement KW - terrestrial planets KW - planets KW - topography KW - metals KW - aluminum KW - Mercury Planet KW - composition KW - thickness KW - sulfur KW - spectra KW - MESSENGER Mission KW - crust KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1807505828?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=High-resolution+measurements+of+Mercury%27s+surface+composition+with+the+MESSENGER+X-ray+spectrometer&rft.au=Frank%2C+Elizabeth+A%3BNittler%2C+Larry+R%3BVorburger%2C+Audrey+H%3BWeider%2C+Shoshana+Z%3BStarr%2C+Richard+D%3BSolomon%2C+Sean+C%3BAnonymous&rft.aulast=Frank&rft.aufirst=Elizabeth&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/1949.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 11 N1 - PubXState - TX N1 - Document feature - sketch maps N1 - SuppNotes - Accessed on Mar. 16, 2016 N1 - Last updated - 2016-07-29 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - alkaline earth metals; aluminum; calcium; composition; crust; high-resolution methods; iron; magnesium; mapping; measurement; Mercury Planet; MESSENGER Mission; metals; planets; spectra; sulfur; surface properties; terrestrial planets; thickness; topography; X-ray spectra ER - TY - JOUR T1 - Gravity field of the Orientale Basin from the Gravity Recovery and Interior Laboratory (GRAIL) mission AN - 1807505698; 2016-065842 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Zuber, Maria T AU - Smith, David E AU - Goossens, Sander J AU - Andrews-Hanna, Jeffrey C AU - Head, James W, III AU - Kiefer, Walter S AU - Asmar, Sami W AU - Konopliv, Alexander S AU - Lemoine, Frank G AU - Matsuyama, Isamu AU - McGovern, Patrick J AU - Melosh, H J AU - Neumann, Gregory A AU - Nimmo, Francis AU - Phillips, Roger J AU - Solomon, Sean C AU - Taylor, G Jeffrey AU - Watkins, Michael M AU - Wieczorek, Mark A AU - Johnson, Brandon C AU - Keane, James AU - Miljkovic, Katarina AU - Park, Ryan S AU - Soderblom, Jason M AU - Blair, David M AU - Mazarico, Erwan AU - Yuan, Dah-Ning AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 1447 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - crust-mantle boundary KW - bulk density KW - density KW - Moon KW - Mare Orientale KW - GRAIL Mission KW - ring structures KW - melts KW - impact melts KW - gravity anomalies KW - Gravity Recovery and Interior Laboratory Mission KW - gravity field KW - melting KW - lunar crust KW - lunar mantle KW - interfaces KW - thickness KW - LOLA KW - Bouguer anomalies KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1807505698?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Gravity+field+of+the+Orientale+Basin+from+the+Gravity+Recovery+and+Interior+Laboratory+%28GRAIL%29+mission&rft.au=Zuber%2C+Maria+T%3BSmith%2C+David+E%3BGoossens%2C+Sander+J%3BAndrews-Hanna%2C+Jeffrey+C%3BHead%2C+James+W%2C+III%3BKiefer%2C+Walter+S%3BAsmar%2C+Sami+W%3BKonopliv%2C+Alexander+S%3BLemoine%2C+Frank+G%3BMatsuyama%2C+Isamu%3BMcGovern%2C+Patrick+J%3BMelosh%2C+H+J%3BNeumann%2C+Gregory+A%3BNimmo%2C+Francis%3BPhillips%2C+Roger+J%3BSolomon%2C+Sean+C%3BTaylor%2C+G+Jeffrey%3BWatkins%2C+Michael+M%3BWieczorek%2C+Mark+A%3BJohnson%2C+Brandon+C%3BKeane%2C+James%3BMiljkovic%2C+Katarina%3BPark%2C+Ryan+S%3BSoderblom%2C+Jason+M%3BBlair%2C+David+M%3BMazarico%2C+Erwan%3BYuan%2C+Dah-Ning%3BAnonymous&rft.aulast=Zuber&rft.aufirst=Maria&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/1447.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 30 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Mar. 2, 2016 N1 - Last updated - 2016-11-17 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Bouguer anomalies; bulk density; crust-mantle boundary; density; GRAIL Mission; gravity anomalies; gravity field; Gravity Recovery and Interior Laboratory Mission; impact melts; interfaces; LOLA; lunar crust; lunar mantle; Mare Orientale; melting; melts; Moon; ring structures; thickness ER - TY - JOUR T1 - Are the clast lithologies contained in lunar breccia 64435 mixtures of anorthositic magmas? AN - 1789755516; 2016-039583 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Simon, J I AU - Mittlefehldt, D W AU - Peng, Z X AU - Nyquist, L E AU - Shih, C Y AU - Yamaguchi, A AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 1630 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - silicates KW - igneous rocks KW - lunar breccia KW - electron probe data KW - anorthite KW - plutonic rocks KW - mineral composition KW - metamorphic rocks KW - framework silicates KW - rare earths KW - europium KW - trace elements KW - plagioclase KW - Mg number KW - breccia KW - impactites KW - Moon KW - impact breccia KW - clasts KW - anorthosite KW - Sample 64435 KW - lunar samples KW - metals KW - magmas KW - feldspar group KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1789755516?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Are+the+clast+lithologies+contained+in+lunar+breccia+64435+mixtures+of+anorthositic+magmas%3F&rft.au=Simon%2C+J+I%3BMittlefehldt%2C+D+W%3BPeng%2C+Z+X%3BNyquist%2C+L+E%3BShih%2C+C+Y%3BYamaguchi%2C+A%3BAnonymous&rft.aulast=Simon&rft.aufirst=J&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.hou.usra.edu/meetings/lpsc2015/pdf/1630.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 15 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Aug. 24, 2015 N1 - Last updated - 2016-05-19 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - anorthite; anorthosite; breccia; clasts; electron probe data; europium; feldspar group; framework silicates; igneous rocks; impact breccia; impactites; lunar breccia; lunar samples; magmas; metals; metamorphic rocks; Mg number; mineral composition; Moon; plagioclase; plutonic rocks; rare earths; Sample 64435; silicates; trace elements ER - TY - JOUR T1 - Lunar surface charging and possible dielectric breakdown in the regolith during two strong SEP events AN - 1789754683; 2016-039552 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Winslow, Reka M AU - Jordan, Andrew P AU - Halekas, Jasper S AU - Stubbs, Timothy J AU - Schwadron, Nathan A AU - Wilson, Jody K AU - Spence, Harlan E AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 1261 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - surface properties KW - CRaTER instrument KW - Moon KW - Lunar Reconnaissance Orbiter KW - solar energetic particle events KW - ARTEMIS Mission KW - Acceleration, Reconnection, Turbulence, and Electrodynamics of the Moon's Interaction with the Sun KW - electrical field KW - weathering KW - Cosmic Ray Telescope for the Effects of Radiation KW - space weathering KW - dielectric properties KW - regolith KW - electrons KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1789754683?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Lunar+surface+charging+and+possible+dielectric+breakdown+in+the+regolith+during+two+strong+SEP+events&rft.au=Winslow%2C+Reka+M%3BJordan%2C+Andrew+P%3BHalekas%2C+Jasper+S%3BStubbs%2C+Timothy+J%3BSchwadron%2C+Nathan+A%3BWilson%2C+Jody+K%3BSpence%2C+Harlan+E%3BAnonymous&rft.aulast=Winslow&rft.aufirst=Reka&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.hou.usra.edu/meetings/lpsc2015/pdf/1261.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 10 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Aug. 7, 2015 N1 - Last updated - 2016-08-18 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Acceleration, Reconnection, Turbulence, and Electrodynamics of the Moon's Interaction with the Sun; ARTEMIS Mission; Cosmic Ray Telescope for the Effects of Radiation; CRaTER instrument; dielectric properties; electrical field; electrons; Lunar Reconnaissance Orbiter; Moon; regolith; solar energetic particle events; space weathering; surface properties; weathering ER - TY - JOUR T1 - Lunar proton albedo anomalies; soil, surveyors, and statistics AN - 1789754574; 2016-039548 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Wilson, J K AU - Schwadron, N AU - Spence, H E AU - Case, A W AU - Jordan, A P AU - Looper, M D AU - Petro, N E AU - Robinson, M S AU - Stubbs, T J AU - Zeitlin, C AU - Blake, J B AU - Kasper, J AU - Mazur, J E AU - Smith, S S AU - Townsend, L W AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 2229 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - albedo KW - galactic cosmic rays KW - CRaTER instrument KW - Moon KW - Lunar Reconnaissance Orbiter KW - statistical analysis KW - mapping KW - anomalies KW - protons KW - lunar highlands KW - maria KW - Cosmic Ray Telescope for the Effects of Radiation KW - neutrons KW - gamma rays KW - surveys KW - cosmic rays KW - spallation KW - regolith KW - lunar soils KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1789754574?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Lunar+proton+albedo+anomalies%3B+soil%2C+surveyors%2C+and+statistics&rft.au=Wilson%2C+J+K%3BSchwadron%2C+N%3BSpence%2C+H+E%3BCase%2C+A+W%3BJordan%2C+A+P%3BLooper%2C+M+D%3BPetro%2C+N+E%3BRobinson%2C+M+S%3BStubbs%2C+T+J%3BZeitlin%2C+C%3BBlake%2C+J+B%3BKasper%2C+J%3BMazur%2C+J+E%3BSmith%2C+S+S%3BTownsend%2C+L+W%3BAnonymous&rft.aulast=Wilson&rft.aufirst=J&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.hou.usra.edu/meetings/lpsc2015/pdf/2229.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 7 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Aug. 5, 2015 N1 - Last updated - 2016-05-19 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - albedo; anomalies; Cosmic Ray Telescope for the Effects of Radiation; cosmic rays; CRaTER instrument; galactic cosmic rays; gamma rays; lunar highlands; Lunar Reconnaissance Orbiter; lunar soils; mapping; maria; Moon; neutrons; protons; regolith; spallation; statistical analysis; surveys ER - TY - JOUR T1 - Microstructural and compositional relations of granitoid clasts in lunar breccias at the micrometer to sub-micrometer scale AN - 1789754485; 2016-039588 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Christoffersen, R AU - Simon, J I AU - Mills, R D AU - Ross, D K AU - Tappa, M AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 2604 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - silicates KW - K-feldspar KW - igneous rocks KW - granites KW - microstructure KW - Sample 15405 KW - lunar breccia KW - melts KW - electron probe data KW - Sample 12013 KW - plutonic rocks KW - barium KW - alkali feldspar KW - metamorphic rocks KW - granophyre KW - framework silicates KW - chemical composition KW - alkaline earth metals KW - plagioclase KW - breccia KW - impactites KW - Moon KW - alkali metals KW - electron microscopy data KW - impact breccia KW - clasts KW - metamorphism KW - intergrowths KW - TEM data KW - Sample 14303 KW - lunar samples KW - metals KW - crystallization KW - feldspar group KW - shock metamorphism KW - SEM data KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1789754485?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Microstructural+and+compositional+relations+of+granitoid+clasts+in+lunar+breccias+at+the+micrometer+to+sub-micrometer+scale&rft.au=Christoffersen%2C+R%3BSimon%2C+J+I%3BMills%2C+R+D%3BRoss%2C+D+K%3BTappa%2C+M%3BAnonymous&rft.aulast=Christoffersen&rft.aufirst=R&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.hou.usra.edu/meetings/lpsc2015/pdf/2604.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 9 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Aug. 25, 2015 N1 - Last updated - 2016-05-19 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - alkali feldspar; alkali metals; alkaline earth metals; barium; breccia; chemical composition; clasts; crystallization; electron microscopy data; electron probe data; feldspar group; framework silicates; granites; granophyre; igneous rocks; impact breccia; impactites; intergrowths; K-feldspar; lunar breccia; lunar samples; melts; metals; metamorphic rocks; metamorphism; microstructure; Moon; plagioclase; plutonic rocks; Sample 12013; Sample 14303; Sample 15405; SEM data; shock metamorphism; silicates; TEM data ER - TY - JOUR T1 - Particle radiation environments and their effects at planetary surfaces; lessons learned at the Moon by LRO/CRaTER and extension to other planetary objects AN - 1789753937; 2016-039547 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Spence, H E AU - Schwadron, N A AU - Wilson, J K AU - Jordan, A P AU - Winslow, R AU - Joyce, C AU - Looper, M D AU - Case, W AU - Petro, N E AU - Robinson, M S AU - Stubbs, T J AU - Zeitlin, C AU - Blake, J B AU - Kasper, J AU - Mazur, J E AU - Smith, S S AU - Townsend, L W AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 2862 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - CRaTER instrument KW - Moon KW - Lunar Reconnaissance Orbiter KW - solar energetic particles KW - protons KW - interplanetary space KW - magnetic field KW - coronal mass ejections KW - planets KW - Cosmic Ray Telescope for the Effects of Radiation KW - background radiation KW - Sun KW - solar cycles KW - cosmic rays KW - satellites KW - particles KW - energetic charged particles KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1789753937?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Particle+radiation+environments+and+their+effects+at+planetary+surfaces%3B+lessons+learned+at+the+Moon+by+LRO%2FCRaTER+and+extension+to+other+planetary+objects&rft.au=Spence%2C+H+E%3BSchwadron%2C+N+A%3BWilson%2C+J+K%3BJordan%2C+A+P%3BWinslow%2C+R%3BJoyce%2C+C%3BLooper%2C+M+D%3BCase%2C+W%3BPetro%2C+N+E%3BRobinson%2C+M+S%3BStubbs%2C+T+J%3BZeitlin%2C+C%3BBlake%2C+J+B%3BKasper%2C+J%3BMazur%2C+J+E%3BSmith%2C+S+S%3BTownsend%2C+L+W%3BAnonymous&rft.aulast=Spence&rft.aufirst=H&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.hou.usra.edu/meetings/lpsc2015/pdf/2862.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 9 N1 - PubXState - TX N1 - SuppNotes - Accessed on Aug. 5, 2015 N1 - Last updated - 2016-05-19 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - background radiation; coronal mass ejections; Cosmic Ray Telescope for the Effects of Radiation; cosmic rays; CRaTER instrument; energetic charged particles; interplanetary space; Lunar Reconnaissance Orbiter; magnetic field; Moon; particles; planets; protons; satellites; solar cycles; solar energetic particles; Sun ER - TY - JOUR T1 - The case for a heat-pipe phase of planet evolution on the Moon AN - 1789753799; 2016-039584 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Simon, J I AU - Moore, W B AU - Webb, A A G AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 1184 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - silicates KW - density KW - igneous rocks KW - mafic composition KW - thermal history KW - buoyancy KW - plutonic rocks KW - melting KW - cumulates KW - heat flow KW - cooling KW - framework silicates KW - plagioclase KW - magma oceans KW - numerical models KW - Moon KW - lithosphere KW - magmatism KW - pipes KW - anorthosite KW - models KW - intrusions KW - flotation KW - dikes KW - lunar crust KW - feldspar group KW - hydrostatic pressure KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1789753799?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=The+case+for+a+heat-pipe+phase+of+planet+evolution+on+the+Moon&rft.au=Simon%2C+J+I%3BMoore%2C+W+B%3BWebb%2C+A+A+G%3BAnonymous&rft.aulast=Simon&rft.aufirst=J&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.hou.usra.edu/meetings/lpsc2015/pdf/1184.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 15 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Aug. 24, 2015 N1 - Last updated - 2016-05-19 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - anorthosite; buoyancy; cooling; cumulates; density; dikes; feldspar group; flotation; framework silicates; heat flow; hydrostatic pressure; igneous rocks; intrusions; lithosphere; lunar crust; mafic composition; magma oceans; magmatism; melting; models; Moon; numerical models; pipes; plagioclase; plutonic rocks; silicates; thermal history ER - TY - JOUR T1 - Rover wheel charging on the Moon and the effects of adhering dust AN - 1789753315; 2016-039553 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Jackson, T L AU - Farrell, W M AU - Zimmerman, M I AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 2733 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - polar regions KW - plasma KW - Moon KW - clastic sediments KW - rovers KW - electrostatic properties KW - tribocharging KW - lunar craters KW - dust KW - sediments KW - natural hazards KW - regolith KW - electrical currents KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1789753315?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Rover+wheel+charging+on+the+Moon+and+the+effects+of+adhering+dust&rft.au=Jackson%2C+T+L%3BFarrell%2C+W+M%3BZimmerman%2C+M+I%3BAnonymous&rft.aulast=Jackson&rft.aufirst=T&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.hou.usra.edu/meetings/lpsc2015/pdf/2733.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 2 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Aug. 7, 2015 N1 - Last updated - 2016-05-19 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - clastic sediments; dust; electrical currents; electrostatic properties; lunar craters; Moon; natural hazards; plasma; polar regions; regolith; rovers; sediments; tribocharging ER - TY - JOUR T1 - LRO-NAC mass DTM pipeline AN - 1784738164; 2016-035586 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - McMichael, S AU - Moratto, Z M AU - Beyer, R A AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 2491 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - imagery KW - Moon KW - Lunar Reconnaissance Orbiter KW - Lunar Reconnaissance Orbiter Camera KW - data processing KW - mapping KW - calibration KW - digital terrain models KW - computer programs KW - Narrow Angle Camera KW - accuracy KW - stereo imagery KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1784738164?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=LRO-NAC+mass+DTM+pipeline&rft.au=McMichael%2C+S%3BMoratto%2C+Z+M%3BBeyer%2C+R+A%3BAnonymous&rft.aulast=McMichael&rft.aufirst=S&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.hou.usra.edu/meetings/lpsc2015/pdf/2491.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 7 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Sept. 25, 2015 N1 - Last updated - 2016-04-28 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - accuracy; calibration; computer programs; data processing; digital terrain models; imagery; Lunar Reconnaissance Orbiter; Lunar Reconnaissance Orbiter Camera; mapping; Moon; Narrow Angle Camera; stereo imagery ER - TY - JOUR T1 - 2014 revision of the MEPAG goals document AN - 1784738135; 2016-035572 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Hamilton, V E AU - Eigenbrode, J AU - Hoehler, T AU - Rafkin, S AU - Withers, P AU - Ruff, S AU - Yingst, R A AU - Lim, D S S AU - Whitley, R AU - Beaty, D W AU - Diniega, S AU - Hays, L AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 2543 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - Opportunity Rover KW - government agencies KW - MEPAG KW - Mars Reconnaissance Orbiter KW - Mars KW - Mars Exploration Program Analysis Group KW - Mars Odyssey KW - exploration KW - terrestrial planets KW - Mars Exploration Rover KW - planets KW - objectives KW - robotic exploration KW - planning KW - NASA KW - future KW - Mars Science Laboratory KW - Mars Express KW - human exploration KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1784738135?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=2014+revision+of+the+MEPAG+goals+document&rft.au=Hamilton%2C+V+E%3BEigenbrode%2C+J%3BHoehler%2C+T%3BRafkin%2C+S%3BWithers%2C+P%3BRuff%2C+S%3BYingst%2C+R+A%3BLim%2C+D+S+S%3BWhitley%2C+R%3BBeaty%2C+D+W%3BDiniega%2C+S%3BHays%2C+L%3BAnonymous&rft.aulast=Hamilton&rft.aufirst=V&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.hou.usra.edu/meetings/lpsc2015/pdf/2543.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 2 N1 - PubXState - TX N1 - SuppNotes - Accessed on Sept. 11, 2015 N1 - Last updated - 2016-04-28 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - exploration; future; government agencies; human exploration; Mars; Mars Exploration Program Analysis Group; Mars Exploration Rover; Mars Express; Mars Odyssey; Mars Reconnaissance Orbiter; Mars Science Laboratory; MEPAG; NASA; objectives; Opportunity Rover; planets; planning; robotic exploration; terrestrial planets ER - TY - JOUR T1 - Status of geodetically controlled high-resolution LROC polar mosaics AN - 1784737172; 2016-035594 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Archinal, Brent A AU - Lee, Ella AU - Weller, Lynn AU - Richie, Janet AU - Edmundson, Kenneth L AU - Robinson, Mark S AU - Speyerer, Emerson J AU - Boyd, Aaron AU - Bowman-Cisneros, Ernest AU - Wagner, Robert AU - Nefian, Ara AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 1571 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - networks KW - high-resolution methods KW - polar regions KW - imagery KW - Lunar Mapping and Modeling Project KW - Moon KW - Lunar Reconnaissance Orbiter KW - cartography KW - Lunar Reconnaissance Orbiter Camera KW - data processing KW - geodesy KW - planets KW - mosaics KW - solar illumination KW - LOLA KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1784737172?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Status+of+geodetically+controlled+high-resolution+LROC+polar+mosaics&rft.au=Archinal%2C+Brent+A%3BLee%2C+Ella%3BWeller%2C+Lynn%3BRichie%2C+Janet%3BEdmundson%2C+Kenneth+L%3BRobinson%2C+Mark+S%3BSpeyerer%2C+Emerson+J%3BBoyd%2C+Aaron%3BBowman-Cisneros%2C+Ernest%3BWagner%2C+Robert%3BNefian%2C+Ara%3BAnonymous&rft.aulast=Archinal&rft.aufirst=Brent&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.hou.usra.edu/meetings/lpsc2015/pdf/1571.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 15 N1 - PubXState - TX N1 - Document feature - illus. incl. 2 tables N1 - SuppNotes - Accessed on Sept. 29, 2015 N1 - Last updated - 2016-04-28 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - cartography; data processing; geodesy; high-resolution methods; imagery; LOLA; Lunar Mapping and Modeling Project; Lunar Reconnaissance Orbiter; Lunar Reconnaissance Orbiter Camera; Moon; mosaics; networks; planets; polar regions; solar illumination ER - TY - JOUR T1 - Scaffold of asymmetric organic compounds; magnetite plaquettes AN - 1784737139; 2016-035563 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Chan, Q H S AU - Zolensky, M E AU - Martinez, J AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 1150 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - stony meteorites KW - electron diffraction data KW - electron microscopy data KW - chirality KW - carbonaceous chondrites KW - morphology KW - molecular structure KW - meteorites KW - organic compounds KW - organic acids KW - amino acids KW - oxides KW - symmetry KW - chondrites KW - SEM data KW - magnetite plaquettes KW - magnetite KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1784737139?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Scaffold+of+asymmetric+organic+compounds%3B+magnetite+plaquettes&rft.au=Chan%2C+Q+H+S%3BZolensky%2C+M+E%3BMartinez%2C+J%3BAnonymous&rft.aulast=Chan&rft.aufirst=Q+H&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.hou.usra.edu/meetings/lpsc2015/pdf/1150.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 12 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Sept. 8, 2015 N1 - Last updated - 2016-04-28 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - amino acids; carbonaceous chondrites; chirality; chondrites; electron diffraction data; electron microscopy data; magnetite; magnetite plaquettes; meteorites; molecular structure; morphology; organic acids; organic compounds; oxides; SEM data; stony meteorites; symmetry ER - TY - JOUR T1 - Petrology of anomalous eucrites AN - 1784737097; 2016-035556 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Mittlefehldt, D W AU - Peng, Z X AU - Ross, D K AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 1933 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - silicates KW - magnesium KW - stony meteorites KW - igneous rocks KW - EET 87520 KW - Elephant Moraine Meteorites KW - EET 87542 KW - manganese KW - iron KW - meteorites KW - pyroxene group KW - plutonic rocks KW - mineral composition KW - cumulates KW - aluminum KW - chain silicates KW - alkaline earth metals KW - high-calcium pyroxene KW - low-calcium pyroxene KW - Asuka Meteorites KW - HED meteorites KW - anomalies KW - Asuka 881394 KW - achondrites KW - Antarctica KW - titanium KW - metals KW - petrography KW - eucrite KW - gabbros KW - exsolution KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1784737097?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Petrology+of+anomalous+eucrites&rft.au=Mittlefehldt%2C+D+W%3BPeng%2C+Z+X%3BRoss%2C+D+K%3BAnonymous&rft.aulast=Mittlefehldt&rft.aufirst=D&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.hou.usra.edu/meetings/lpsc2015/pdf/1933.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 19 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Acessed on Sept. 4, 2015 N1 - Last updated - 2016-08-18 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Asuka 881394; achondrites; alkaline earth metals; aluminum; anomalies; Antarctica; Asuka Meteorites; chain silicates; cumulates; EET 87520; EET 87542; Elephant Moraine Meteorites; eucrite; exsolution; gabbros; HED meteorites; high-calcium pyroxene; igneous rocks; iron; low-calcium pyroxene; magnesium; manganese; metals; meteorites; mineral composition; petrography; plutonic rocks; pyroxene group; silicates; stony meteorites; titanium ER - TY - JOUR T1 - Lunar surface properties from new Diviner eclipse observations AN - 1784734890; 2016-035607 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Paige, D A AU - Hayne, P O AU - Greenhagen, B T AU - Bandfield, J L AU - Siegler, M A AU - Lucey, P G AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 2953 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - surface properties KW - impact features KW - Moon KW - Lunar Reconnaissance Orbiter KW - thermal properties KW - Kepler Crater KW - ejecta KW - lunar eclipses KW - temperature KW - brightness KW - size distribution KW - physical properties KW - cooling KW - impact craters KW - orbital observations KW - diurnal variations KW - Diviner Lunar Radiometer Experiment KW - rocks KW - regolith KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1784734890?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Lunar+surface+properties+from+new+Diviner+eclipse+observations&rft.au=Paige%2C+D+A%3BHayne%2C+P+O%3BGreenhagen%2C+B+T%3BBandfield%2C+J+L%3BSiegler%2C+M+A%3BLucey%2C+P+G%3BAnonymous&rft.aulast=Paige&rft.aufirst=D&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.hou.usra.edu/meetings/lpsc2015/pdf/2953.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 11 N1 - PubXState - TX N1 - SuppNotes - Accessed on Oct. 5, 2015 N1 - Last updated - 2016-08-18 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - brightness; cooling; diurnal variations; Diviner Lunar Radiometer Experiment; ejecta; impact craters; impact features; Kepler Crater; lunar eclipses; Lunar Reconnaissance Orbiter; Moon; orbital observations; physical properties; regolith; rocks; size distribution; surface properties; temperature; thermal properties ER - TY - JOUR T1 - Planetary impacts and atmospheric escape AN - 1780803826; 2016-033800 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Korycansky, D G AU - Catling, D C AU - Zahnle, K J AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 1145 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - cratering KW - Earth KW - extrasolar planets KW - erosion KW - atmosphere KW - Mars KW - impacts KW - simulation KW - carbon dioxide KW - terrestrial planets KW - super-Earths KW - planets KW - yield strength KW - hydrodynamics KW - atmospheric pressure KW - atmospheric escape KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1780803826?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Planetary+impacts+and+atmospheric+escape&rft.au=Korycansky%2C+D+G%3BCatling%2C+D+C%3BZahnle%2C+K+J%3BAnonymous&rft.aulast=Korycansky&rft.aufirst=D&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/1145.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 5 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Oct. 14, 2015 N1 - Last updated - 2016-04-14 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - atmosphere; atmospheric escape; atmospheric pressure; carbon dioxide; cratering; Earth; erosion; extrasolar planets; hydrodynamics; impacts; Mars; planets; simulation; super-Earths; terrestrial planets; yield strength ER - TY - JOUR T1 - Modeling the geologic history of Mt. Sharp AN - 1780803732; 2016-033843 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Pascuzzo, A AU - Allen, Carlton C AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no 1449 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - imagery KW - Nicholson Crater KW - Noachian KW - impact features KW - Mars KW - Hesperian KW - digital terrain models KW - Context Camera KW - Gale Crater KW - topography KW - Medusae Fossae Formation KW - HiRISE KW - orbital observations KW - THEMIS KW - peak rings KW - mounds KW - terrestrial planets KW - morphology KW - models KW - planets KW - natural analogs KW - MOLA KW - impact craters KW - Mount Sharp KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1780803732?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Modeling+the+geologic+history+of+Mt.+Sharp&rft.au=Pascuzzo%2C+A%3BAllen%2C+Carlton+C%3BAnonymous&rft.aulast=Pascuzzo&rft.aufirst=A&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/1449.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 10 N1 - PubXState - TX N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Accessed on Nov. 2, 2015 N1 - Last updated - 2016-04-14 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Context Camera; digital terrain models; Gale Crater; Hesperian; HiRISE; imagery; impact craters; impact features; Mars; Medusae Fossae Formation; models; MOLA; morphology; mounds; Mount Sharp; natural analogs; Nicholson Crater; Noachian; orbital observations; peak rings; planets; terrestrial planets; THEMIS; topography ER - TY - JOUR T1 - Atmospheric condensation in the Mars Phoenix TECP and MET data AN - 1780803651; 2016-033811 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Zent, Aaron P AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 2861 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - clouds KW - Mars Phoenix Lander KW - laser methods KW - condensation KW - atmosphere KW - water vapor KW - Mars KW - calibration KW - temperature KW - terrestrial planets KW - planets KW - lidar methods KW - ice KW - Thermal and Electrical Conductivity Probe KW - meteorology KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1780803651?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Atmospheric+condensation+in+the+Mars+Phoenix+TECP+and+MET+data&rft.au=Zent%2C+Aaron+P%3BAnonymous&rft.aulast=Zent&rft.aufirst=Aaron&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/2861.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 7 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Oct. 19, 2015 N1 - Last updated - 2016-04-14 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - atmosphere; calibration; clouds; condensation; ice; laser methods; lidar methods; Mars; Mars Phoenix Lander; meteorology; planets; temperature; terrestrial planets; Thermal and Electrical Conductivity Probe; water vapor ER - TY - JOUR T1 - Degradation of Endeavour Crater, Mars AN - 1780803616; 2016-033852 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Grant, J A AU - Crumpler, L S AU - Parker, T J AU - Golombek, M P AU - Wilson, S A AU - Mittlefehldt, D W AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 2017 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - Meridiani Planum KW - Shoemaker Formation KW - degradation KW - Noachian KW - impact features KW - tilt KW - Opportunity Rover KW - erosion KW - wind erosion KW - Mars KW - ejecta KW - relief KW - terrestrial planets KW - morphology KW - Mars Exploration Rover KW - planets KW - mass movements KW - plains KW - impact craters KW - Matijevic Formation KW - Endeavour Crater KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1780803616?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Degradation+of+Endeavour+Crater%2C+Mars&rft.au=Grant%2C+J+A%3BCrumpler%2C+L+S%3BParker%2C+T+J%3BGolombek%2C+M+P%3BWilson%2C+S+A%3BMittlefehldt%2C+D+W%3BAnonymous&rft.aulast=Grant&rft.aufirst=J&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/2017.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 17 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Nov. 3, 2015 N1 - Last updated - 2016-04-14 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - degradation; ejecta; Endeavour Crater; erosion; impact craters; impact features; Mars; Mars Exploration Rover; mass movements; Matijevic Formation; Meridiani Planum; morphology; Noachian; Opportunity Rover; plains; planets; relief; Shoemaker Formation; terrestrial planets; tilt; wind erosion ER - TY - JOUR T1 - NASA Space Science Day Events; engaging students in science AN - 1773798920; 2016-022701 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Foxworth, Suzanne AU - Mosie, A AU - Allen, J AU - Kent, J AU - Green, A AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 2809 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - science, technology, engineering and mathematics KW - public awareness KW - Moon KW - government agencies KW - education KW - teacher education KW - meteorites KW - lunar samples KW - K-12 education KW - NASA KW - STEM KW - academic institutions KW - Space Science Day Events KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1773798920?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=NASA+Space+Science+Day+Events%3B+engaging+students+in+science&rft.au=Foxworth%2C+Suzanne%3BMosie%2C+A%3BAllen%2C+J%3BKent%2C+J%3BGreen%2C+A%3BAnonymous&rft.aulast=Foxworth&rft.aufirst=Suzanne&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/2809.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - PubXState - TX N1 - SuppNotes - Accessed on Nov. 18, 2015 N1 - Last updated - 2016-03-17 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - academic institutions; education; government agencies; K-12 education; lunar samples; meteorites; Moon; NASA; public awareness; science, technology, engineering and mathematics; Space Science Day Events; STEM; teacher education ER - TY - JOUR T1 - Lead isotope compositions of acid residues from olivine-phyric shergottite Tissint; implications for heterogeneous shergottite source reservoirs AN - 1773798435; 2016-024547 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Moriwaki, R AU - Usui, T AU - Yokoyama, T AU - Simon, J I AU - Jones, J H AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 1921 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - silicates KW - stony meteorites KW - isotopes KW - Martian meteorites KW - thermal ionization mass spectra KW - mass spectra KW - lead KW - olivine group KW - stable isotopes KW - SNC Meteorites KW - meteorites KW - radioactive isotopes KW - whole rock KW - insoluble residues KW - olivine KW - orthosilicates KW - leachate KW - spectra KW - rare earths KW - Pb-207/Pb-204 KW - Pb-206/Pb-204 KW - isotope ratios KW - achondrites KW - nesosilicates KW - ICP mass spectra KW - Tissint Meteorite KW - shergottite KW - heterogeneous materials KW - metals KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1773798435?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Lead+isotope+compositions+of+acid+residues+from+olivine-phyric+shergottite+Tissint%3B+implications+for+heterogeneous+shergottite+source+reservoirs&rft.au=Moriwaki%2C+R%3BUsui%2C+T%3BYokoyama%2C+T%3BSimon%2C+J+I%3BJones%2C+J+H%3BAnonymous&rft.aulast=Moriwaki&rft.aufirst=R&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/1921.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 14 N1 - PubXState - TX N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Accessed on Dec. 22, 2015 N1 - Last updated - 2016-03-17 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - achondrites; heterogeneous materials; ICP mass spectra; insoluble residues; isotope ratios; isotopes; leachate; lead; Martian meteorites; mass spectra; metals; meteorites; nesosilicates; olivine; olivine group; orthosilicates; Pb-206/Pb-204; Pb-207/Pb-204; radioactive isotopes; rare earths; shergottite; silicates; SNC Meteorites; spectra; stable isotopes; stony meteorites; thermal ionization mass spectra; Tissint Meteorite; whole rock ER - TY - JOUR T1 - Curvilinear furrows on Mars; hints for iceberg rafting? AN - 1773798227; 2016-024516 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Uceda, Esther R AU - Fairen, Alberto G AU - Woodworth-Lynas, Christopher M T AU - Rodriguez, J Alexis P AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 1349 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - scour KW - imagery KW - erosion KW - furrows KW - curvilinear furrows KW - Mars KW - glacial features KW - ice rafting KW - dust devils KW - terrestrial planets KW - planets KW - fractures KW - lava tubes KW - volcanic features KW - topography KW - natural analogs KW - surface features KW - terrestrial comparison KW - HiRISE KW - faults KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1773798227?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Curvilinear+furrows+on+Mars%3B+hints+for+iceberg+rafting%3F&rft.au=Uceda%2C+Esther+R%3BFairen%2C+Alberto+G%3BWoodworth-Lynas%2C+Christopher+M+T%3BRodriguez%2C+J+Alexis+P%3BAnonymous&rft.aulast=Uceda&rft.aufirst=Esther&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/1349.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 21 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Dec. 10, 2015 N1 - Last updated - 2016-03-17 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - curvilinear furrows; dust devils; erosion; faults; fractures; furrows; glacial features; HiRISE; ice rafting; imagery; lava tubes; Mars; natural analogs; planets; scour; surface features; terrestrial comparison; terrestrial planets; topography; volcanic features ER - TY - JOUR T1 - Amorphous analogs of Martian global soil; pair distribution function analyses and implications for scattering models of CheMin X-ray diffraction data AN - 1773798193; 2016-024571 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Achilles, C N AU - Bish, D L AU - Rampe, E B AU - Morris, R V AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 2871 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - silicates KW - volcanic rocks KW - glasses KW - X-ray diffraction data KW - igneous rocks KW - Mars KW - crystallinity KW - Mars Exploration Rover KW - laboratory studies KW - silica KW - CheMin KW - glass materials KW - soils KW - amorphous materials KW - global KW - pair distribution function analysis KW - palagonite KW - clay minerals KW - terrestrial planets KW - models KW - planets KW - allophane KW - natural analogs KW - Mars Science Laboratory KW - sheet silicates KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1773798193?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Amorphous+analogs+of+Martian+global+soil%3B+pair+distribution+function+analyses+and+implications+for+scattering+models+of+CheMin+X-ray+diffraction+data&rft.au=Achilles%2C+C+N%3BBish%2C+D+L%3BRampe%2C+E+B%3BMorris%2C+R+V%3BAnonymous&rft.aulast=Achilles&rft.aufirst=C&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/2871.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 5 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Jan. 5, 2016 N1 - Last updated - 2016-03-17 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - allophane; amorphous materials; CheMin; clay minerals; crystallinity; glass materials; glasses; global; igneous rocks; laboratory studies; Mars; Mars Exploration Rover; Mars Science Laboratory; models; natural analogs; pair distribution function analysis; palagonite; planets; sheet silicates; silica; silicates; soils; terrestrial planets; volcanic rocks; X-ray diffraction data ER - TY - JOUR T1 - Gusev-Meridiani-type soil component dissolved in some shock glasses in shergottites AN - 1773798049; 2016-024560 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Ross, Daniel K AU - Rao, M N AU - Nyquist, L E AU - Shih, C Y AU - Sutton, S AU - Garrison, D H AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 2032 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - magnesium KW - Shergotty Meteorite KW - stony meteorites KW - Martian meteorites KW - enrichment KW - Mars KW - Elephant Moraine Meteorites KW - melts KW - iron KW - SNC Meteorites KW - meteorites KW - impact melts KW - EETA 79001 KW - mixing KW - mass balance KW - glass materials KW - Gusev Crater KW - soils KW - Meridiani Planum KW - alkaline earth metals KW - metamorphism KW - achondrites KW - terrestrial planets KW - models KW - planets KW - Tissint Meteorite KW - Antarctica KW - shergottite KW - metals KW - sulfur KW - components KW - shock metamorphism KW - 05B:Petrology of meteorites and tektites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1773798049?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Gusev-Meridiani-type+soil+component+dissolved+in+some+shock+glasses+in+shergottites&rft.au=Ross%2C+Daniel+K%3BRao%2C+M+N%3BNyquist%2C+L+E%3BShih%2C+C+Y%3BSutton%2C+S%3BGarrison%2C+D+H%3BAnonymous&rft.aulast=Ross&rft.aufirst=Daniel&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/2032.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 11 N1 - PubXState - TX N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Accessed on Dec. 29, 2015 N1 - Last updated - 2016-03-17 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - achondrites; alkaline earth metals; Antarctica; components; EETA 79001; Elephant Moraine Meteorites; enrichment; glass materials; Gusev Crater; impact melts; iron; magnesium; Mars; Martian meteorites; mass balance; melts; Meridiani Planum; metals; metamorphism; meteorites; mixing; models; planets; shergottite; Shergotty Meteorite; shock metamorphism; SNC Meteorites; soils; stony meteorites; sulfur; terrestrial planets; Tissint Meteorite ER - TY - JOUR T1 - Titan submarine; vehicle design and operations concept for the exploration of the hydrocarbon seas of Saturn's giant Moon AN - 1773797708; 2016-022691 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Lorenz, Ralph D AU - Oleson, Steve AU - Woytach, Jeff AU - Jones, Robert AU - Colozza, Anthony AU - Schmitz, Paul AU - Landis, Geoffrey AU - Paul, Michael AU - Walsh, Justin AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 1259 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - submersibles KW - icy satellites KW - methane KW - aliphatic hydrocarbons KW - ethane KW - alkanes KW - concepts KW - giant planets KW - exploration KW - Saturn KW - planets KW - Kraken Mare KW - organic compounds KW - hydrocarbons KW - Titan Satellite KW - outer planets KW - satellites KW - design KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1773797708?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Titan+submarine%3B+vehicle+design+and+operations+concept+for+the+exploration+of+the+hydrocarbon+seas+of+Saturn%27s+giant+Moon&rft.au=Lorenz%2C+Ralph+D%3BOleson%2C+Steve%3BWoytach%2C+Jeff%3BJones%2C+Robert%3BColozza%2C+Anthony%3BSchmitz%2C+Paul%3BLandis%2C+Geoffrey%3BPaul%2C+Michael%3BWalsh%2C+Justin%3BAnonymous&rft.aulast=Lorenz&rft.aufirst=Ralph&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/1259.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Nov. 16, 2015 N1 - Last updated - 2016-03-17 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; concepts; design; ethane; exploration; giant planets; hydrocarbons; icy satellites; Kraken Mare; methane; organic compounds; outer planets; planets; satellites; Saturn; submersibles; Titan Satellite ER - TY - JOUR T1 - Tools for scientist engagement to E/PO; NASA SMD online community workspace AN - 1773797590; 2016-022725 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Dalton, H A AU - Shipp, S S AU - Bartolone, Lindsay AU - Schwerin, Theresa AU - Peticolas, Laura AU - Meinke, Bonnie AU - Buxner, Sanlyn AU - Grier, Jennifer AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 2965 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - educational resources KW - public awareness KW - extraterrestrial geology KW - NASA KW - government agencies KW - NASA Science Mission Directorate KW - education KW - computer networks KW - online workspace KW - Internet KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1773797590?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Tools+for+scientist+engagement+to+E%2FPO%3B+NASA+SMD+online+community+workspace&rft.au=Dalton%2C+H+A%3BShipp%2C+S+S%3BBartolone%2C+Lindsay%3BSchwerin%2C+Theresa%3BPeticolas%2C+Laura%3BMeinke%2C+Bonnie%3BBuxner%2C+Sanlyn%3BGrier%2C+Jennifer%3BAnonymous&rft.aulast=Dalton&rft.aufirst=H&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/2965.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - PubXState - TX N1 - SuppNotes - Accessed on Nov. 30, 2015 N1 - Last updated - 2016-03-17 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - computer networks; education; educational resources; extraterrestrial geology; government agencies; Internet; NASA; NASA Science Mission Directorate; online workspace; public awareness ER - TY - JOUR T1 - Transmission X-ray diffraction (XRD) patterns relevant to the MSL CheMin amorphous component; sulfates and silicates AN - 1773797109; 2016-024570 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Morris, Richard V AU - Rampe, E B AU - Graff, T G AU - Archer, P D, Jr AU - Le, L AU - Ming, D W AU - Sutter, B AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 2434 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - silicates KW - experimental studies KW - chemically precipitated rocks KW - X-ray diffraction data KW - sulfates KW - solutions KW - amorphous materials KW - Mars KW - terrestrial planets KW - planets KW - laboratory studies KW - sedimentary rocks KW - precipitation KW - Mars Science Laboratory KW - cations KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1773797109?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Transmission+X-ray+diffraction+%28XRD%29+patterns+relevant+to+the+MSL+CheMin+amorphous+component%3B+sulfates+and+silicates&rft.au=Morris%2C+Richard+V%3BRampe%2C+E+B%3BGraff%2C+T+G%3BArcher%2C+P+D%2C+Jr%3BLe%2C+L%3BMing%2C+D+W%3BSutter%2C+B%3BAnonymous&rft.aulast=Morris&rft.aufirst=Richard&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/2434.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 11 N1 - PubXState - TX N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Accessed on Jan. 5, 2016 N1 - Last updated - 2016-03-17 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - amorphous materials; cations; chemically precipitated rocks; experimental studies; laboratory studies; Mars; Mars Science Laboratory; planets; precipitation; sedimentary rocks; silicates; solutions; sulfates; terrestrial planets; X-ray diffraction data ER - TY - JOUR T1 - Oxychlorine species on Mars; the Gale Crater story AN - 1769966633; 2016-020683 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Archer, P Doug, Jr AU - Ming, D W AU - Sutter, B AU - Morris, R V AU - Clark, B C AU - Mahaffy, P AU - Wray, J J AU - Fairen, A G AU - Gellert, R AU - Yen, A S AU - Blake, D F AU - Vaniman, D T AU - Glavin, D P AU - Eigenbrode, J L AU - Trainer, M G AU - Navarro-Gonzalez, R AU - McKay, C P AU - Freissinet, C AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 2971 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - oxygen KW - Alpha Particle X-ray Spectrometer KW - halogens KW - Windjana KW - Mars KW - Gale Crater KW - sedimentary rocks KW - pyrolysis KW - John Klein Outcrop KW - spectra KW - chlorine KW - mudstone KW - Confidence Hills KW - oxychlorine KW - X-ray spectra KW - Sheepbed Mudstone KW - Rocknest KW - perchlorate KW - terrestrial planets KW - planets KW - evolved gas analysis KW - Sample Analysis at Mars Instrument KW - Mars Science Laboratory KW - clastic rocks KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1769966633?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Oxychlorine+species+on+Mars%3B+the+Gale+Crater+story&rft.au=Archer%2C+P+Doug%2C+Jr%3BMing%2C+D+W%3BSutter%2C+B%3BMorris%2C+R+V%3BClark%2C+B+C%3BMahaffy%2C+P%3BWray%2C+J+J%3BFairen%2C+A+G%3BGellert%2C+R%3BYen%2C+A+S%3BBlake%2C+D+F%3BVaniman%2C+D+T%3BGlavin%2C+D+P%3BEigenbrode%2C+J+L%3BTrainer%2C+M+G%3BNavarro-Gonzalez%2C+R%3BMcKay%2C+C+P%3BFreissinet%2C+C%3BAnonymous&rft.aulast=Archer&rft.aufirst=P&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/2971.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 15 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Oct. 28, 2015 N1 - Last updated - 2016-05-19 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Alpha Particle X-ray Spectrometer; chlorine; clastic rocks; Confidence Hills; evolved gas analysis; Gale Crater; halogens; John Klein Outcrop; Mars; Mars Science Laboratory; mudstone; oxychlorine; oxygen; perchlorate; planets; pyrolysis; Rocknest; Sample Analysis at Mars Instrument; sedimentary rocks; Sheepbed Mudstone; spectra; terrestrial planets; Windjana; X-ray spectra ER - TY - JOUR T1 - Germanium enrichments in sedimentary rocks in Gale Crater, Mars; constraining the timing of alteration and character of the protolith AN - 1769966622; 2016-020680 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Berger, Jeff AU - Schmidt, M E AU - Gellert, R AU - Campbell, J L AU - Boyd, N I AU - Elliott, B E AU - Fisk, M R AU - King, P L AU - Ming, D W AU - Perrett, G M AU - Thompson, L M AU - VanBommel, S J AU - Yen, A AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 1564 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - alteration KW - Alpha Particle X-ray Spectrometer KW - enrichment KW - Mars KW - silicon KW - Gale Crater KW - Aeolis Mons KW - sedimentary rocks KW - Pahrump KW - Curiosity Rover KW - tracers KW - spectra KW - heterogeneity KW - Peace Vallis KW - protoliths KW - X-ray spectra KW - weathering KW - terrestrial planets KW - aqueous alteration KW - planets KW - metals KW - diagenesis KW - germanium KW - Mars Science Laboratory KW - mobilization KW - chemical fractionation KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1769966622?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Germanium+enrichments+in+sedimentary+rocks+in+Gale+Crater%2C+Mars%3B+constraining+the+timing+of+alteration+and+character+of+the+protolith&rft.au=Berger%2C+Jeff%3BSchmidt%2C+M+E%3BGellert%2C+R%3BCampbell%2C+J+L%3BBoyd%2C+N+I%3BElliott%2C+B+E%3BFisk%2C+M+R%3BKing%2C+P+L%3BMing%2C+D+W%3BPerrett%2C+G+M%3BThompson%2C+L+M%3BVanBommel%2C+S+J%3BYen%2C+A%3BAnonymous&rft.aulast=Berger&rft.aufirst=Jeff&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/1564.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 14 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Oct. 28, 2015 N1 - Last updated - 2016-05-19 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Aeolis Mons; Alpha Particle X-ray Spectrometer; alteration; aqueous alteration; chemical fractionation; Curiosity Rover; diagenesis; enrichment; Gale Crater; germanium; heterogeneity; Mars; Mars Science Laboratory; metals; mobilization; Pahrump; Peace Vallis; planets; protoliths; sedimentary rocks; silicon; spectra; terrestrial planets; tracers; weathering; X-ray spectra ER - TY - JOUR T1 - Mg-rich clays and silica-bearing deposits in Eridania Basin; possible evidence for ancient sea deposits on Mars AN - 1769966546; 2016-020674 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Michalski, J R AU - Noe Dobrea, E Z AU - Weitz, C M AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 2754 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - silicates KW - silica minerals KW - olivine group KW - Mars KW - Context Camera KW - chaotic terrains KW - infrared spectra KW - talc KW - olivine KW - orthosilicates KW - exhumation KW - HiRISE KW - framework silicates KW - spectra KW - Eridania Basin KW - CRISM KW - saponite KW - opal KW - clay minerals KW - terrestrial planets KW - nesosilicates KW - aqueous alteration KW - planets KW - marine environment KW - sheet silicates KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1769966546?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Mg-rich+clays+and+silica-bearing+deposits+in+Eridania+Basin%3B+possible+evidence+for+ancient+sea+deposits+on+Mars&rft.au=Michalski%2C+J+R%3BNoe+Dobrea%2C+E+Z%3BWeitz%2C+C+M%3BAnonymous&rft.aulast=Michalski&rft.aufirst=J&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/2754.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 7 N1 - PubXState - TX N1 - Document feature - illus. incl. sketch map N1 - SuppNotes - Accessed Oct. 27, 2015 N1 - Last updated - 2016-03-03 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - aqueous alteration; chaotic terrains; clay minerals; Context Camera; CRISM; Eridania Basin; exhumation; framework silicates; HiRISE; infrared spectra; marine environment; Mars; nesosilicates; olivine; olivine group; opal; orthosilicates; planets; saponite; sheet silicates; silica minerals; silicates; spectra; talc; terrestrial planets ER - TY - JOUR T1 - Science priorities for lunar exploration missions and value of continued LRO operations for future lunar geoscience AN - 1769966493; 2016-020657 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Jolliff, Brad AU - Lawrence, Sam AU - Petro, Noah AU - Clegg, Ryan AU - Stadermann, Amanda AU - Zanetti, Michael AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 2616 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - polar regions KW - imagery KW - volcanic rocks KW - impact features KW - Moon KW - Lunar Reconnaissance Orbiter KW - igneous rocks KW - Lunar Reconnaissance Orbiter Camera KW - impacts KW - exploration KW - South Pole-Aitken Basin KW - chronology KW - volcanism KW - future KW - basalts KW - Aristarchus KW - Narrow Angle Camera KW - Compton-Belkovich volcanic complex KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1769966493?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Science+priorities+for+lunar+exploration+missions+and+value+of+continued+LRO+operations+for+future+lunar+geoscience&rft.au=Jolliff%2C+Brad%3BLawrence%2C+Sam%3BPetro%2C+Noah%3BClegg%2C+Ryan%3BStadermann%2C+Amanda%3BZanetti%2C+Michael%3BAnonymous&rft.aulast=Jolliff&rft.aufirst=Brad&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/2616.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 29 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Oct. 20, 2015 N1 - Last updated - 2016-03-03 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Aristarchus; basalts; chronology; Compton-Belkovich volcanic complex; exploration; future; igneous rocks; imagery; impact features; impacts; Lunar Reconnaissance Orbiter; Lunar Reconnaissance Orbiter Camera; Moon; Narrow Angle Camera; polar regions; South Pole-Aitken Basin; volcanic rocks; volcanism ER - TY - JOUR T1 - Mineralogical comparison of olivine in shergottites and a shocked L chondrite; implications for shock histories of brown olivine AN - 1769966209; 2016-020701 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Takenouchi, A AU - Mikouchi, T AU - Yamaguchi, A AU - Zolensky, M E AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 1650 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - silicates KW - Northwest Africa Meteorites KW - ordinary chondrites KW - stony meteorites KW - Martian meteorites KW - Lewis Cliff Meteorites KW - RBT 04261 KW - olivine group KW - L chondrites KW - iron KW - Roberts Massif Meteorites KW - SNC Meteorites KW - meteorites KW - olivine KW - orthosilicates KW - Larkman Nunatak Meteorites KW - chondrites KW - Yamato Meteorites KW - NWA 1950 KW - LEW 88516 KW - LAR 12095 KW - NWA 1068 KW - metamorphism KW - achondrites KW - nesosilicates KW - Tissint Meteorite KW - shergottite KW - NWA 4719 KW - LAR 06319 KW - color KW - metals KW - Y 984028 KW - nanoparticles KW - shock metamorphism KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1769966209?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Mineralogical+comparison+of+olivine+in+shergottites+and+a+shocked+L+chondrite%3B+implications+for+shock+histories+of+brown+olivine&rft.au=Takenouchi%2C+A%3BMikouchi%2C+T%3BYamaguchi%2C+A%3BZolensky%2C+M+E%3BAnonymous&rft.aulast=Takenouchi&rft.aufirst=A&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/10.1111%2Fmaps.12208 L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/1650.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 7 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Nov. 9, 2015 N1 - Last updated - 2016-03-03 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - achondrites; chondrites; color; iron; L chondrites; LAR 06319; LAR 12095; Larkman Nunatak Meteorites; LEW 88516; Lewis Cliff Meteorites; Martian meteorites; metals; metamorphism; meteorites; nanoparticles; nesosilicates; Northwest Africa Meteorites; NWA 1068; NWA 1950; NWA 4719; olivine; olivine group; ordinary chondrites; orthosilicates; RBT 04261; Roberts Massif Meteorites; shergottite; shock metamorphism; silicates; SNC Meteorites; stony meteorites; Tissint Meteorite; Y 984028; Yamato Meteorites ER - TY - JOUR T1 - Ion irradiation experiments on the Murchison CM2 carbonaceous chondrite; simulating space weathering of primitive asteroids AN - 1769964470; 2016-020654 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Keller, Lindsay P AU - Christoffersen, R AU - Dukes, C A AU - Baragiola, R A AU - Rahman, Z AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 1913 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - silicates KW - irradiation KW - stony meteorites KW - asteroids KW - microstructure KW - simulation KW - iron KW - Murchison Meteorite KW - infrared spectra KW - meteorites KW - FTIR spectra KW - spectra KW - chondrites KW - experimental studies KW - amorphous materials KW - textures KW - matrix KW - carbonaceous chondrites KW - weathering KW - focused ion beam KW - space weathering KW - metals KW - sheet silicates KW - CM chondrites KW - nanophase iron KW - amorphization KW - regolith KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1769964470?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Ion+irradiation+experiments+on+the+Murchison+CM2+carbonaceous+chondrite%3B+simulating+space+weathering+of+primitive+asteroids&rft.au=Keller%2C+Lindsay+P%3BChristoffersen%2C+R%3BDukes%2C+C+A%3BBaragiola%2C+R+A%3BRahman%2C+Z%3BAnonymous&rft.aulast=Keller&rft.aufirst=Lindsay&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/1913.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 5 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Oct. 20, 2015 N1 - Last updated - 2016-03-03 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - amorphization; amorphous materials; asteroids; carbonaceous chondrites; chondrites; CM chondrites; experimental studies; focused ion beam; FTIR spectra; infrared spectra; iron; irradiation; matrix; metals; meteorites; microstructure; Murchison Meteorite; nanophase iron; regolith; sheet silicates; silicates; simulation; space weathering; spectra; stony meteorites; textures; weathering ER - TY - JOUR T1 - Modeling heat and salt transfer at Europa's ice-ocean interface AN - 1769964273; 2016-020643 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Elsenousy, A AU - Vance, S AU - Bills, B G AU - Goodman, J AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 1676 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - icy satellites KW - sea water KW - heat flux KW - Europa Satellite KW - subsurface ocean KW - sea ice KW - Galilean satellites KW - salinity KW - freezing KW - convection KW - ice shell KW - models KW - melting KW - ice KW - thickness KW - heat transfer KW - satellites KW - boundary layer KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1769964273?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Modeling+heat+and+salt+transfer+at+Europa%27s+ice-ocean+interface&rft.au=Elsenousy%2C+A%3BVance%2C+S%3BBills%2C+B+G%3BGoodman%2C+J%3BAnonymous&rft.aulast=Elsenousy&rft.aufirst=A&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.hou.usra.edu/meetings/lpsc2015/pdf/1676.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 5 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Oct. 9, 2015 N1 - Last updated - 2016-03-03 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - boundary layer; convection; Europa Satellite; freezing; Galilean satellites; heat flux; heat transfer; ice; ice shell; icy satellites; melting; models; salinity; satellites; sea ice; sea water; subsurface ocean; thickness ER - TY - JOUR T1 - Lunar crater ejecta; physical properties revealed by radar and thermal infrared observations AN - 1752579486; 2016-003398 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Ghent, R R AU - Carter, L M AU - Bandfield, J L AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 1979 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - Earth-based observations KW - impact features KW - telescope methods KW - Moon KW - Lunar Reconnaissance Orbiter KW - haloes KW - thermal infrared spectra KW - circular polarization ratio KW - radar methods KW - Miniature Radio Frequency instrument KW - ejecta KW - lunar craters KW - depth KW - burial KW - infrared spectra KW - physical properties KW - Mini-RF instrument KW - thickness KW - impact craters KW - spectra KW - orbital observations KW - Diviner Lunar Radiometer Experiment KW - regolith KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1752579486?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Lunar+crater+ejecta%3B+physical+properties+revealed+by+radar+and+thermal+infrared+observations&rft.au=Ghent%2C+R+R%3BCarter%2C+L+M%3BBandfield%2C+J+L%3BAnonymous&rft.aulast=Ghent&rft.aufirst=R&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.hou.usra.edu/meetings/lpsc2015/pdf/1979.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 8 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Sept. 29, 2015 N1 - Last updated - 2015-12-31 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - burial; circular polarization ratio; depth; Diviner Lunar Radiometer Experiment; Earth-based observations; ejecta; haloes; impact craters; impact features; infrared spectra; lunar craters; Lunar Reconnaissance Orbiter; Mini-RF instrument; Miniature Radio Frequency instrument; Moon; orbital observations; physical properties; radar methods; regolith; spectra; telescope methods; thermal infrared spectra; thickness ER - TY - JOUR T1 - Constraints, questions, and future directions on volatiles in the Martian interior; a summary of the workshop AN - 1752579392; 2016-003407 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Filiberto, J AU - Baratoux, D AU - Beaty, D AU - Breuer, D AU - Farcy, B J AU - Grott, M AU - Jones, John H AU - Kiefer, W S AU - Mane, P AU - McCubbin, F M AU - Schwenzer, S P AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 2064 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - volcanic rocks KW - stony meteorites KW - isotopes KW - Martian meteorites KW - igneous rocks KW - halogens KW - mantle KW - Mars KW - meteorites KW - melting KW - volatile elements KW - noble gases KW - carbon KW - basalts KW - degassing KW - water KW - chlorine KW - atmosphere KW - achondrites KW - terrestrial planets KW - planets KW - volatiles KW - magmas KW - planetary interiors KW - sulfur KW - crust KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1752579392?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Constraints%2C+questions%2C+and+future+directions+on+volatiles+in+the+Martian+interior%3B+a+summary+of+the+workshop&rft.au=Filiberto%2C+J%3BBaratoux%2C+D%3BBeaty%2C+D%3BBreuer%2C+D%3BFarcy%2C+B+J%3BGrott%2C+M%3BJones%2C+John+H%3BKiefer%2C+W+S%3BMane%2C+P%3BMcCubbin%2C+F+M%3BSchwenzer%2C+S+P%3BAnonymous&rft.aulast=Filiberto&rft.aufirst=J&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.hou.usra.edu/meetings/lpsc2015/pdf/2064.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 31 N1 - PubXState - TX N1 - SuppNotes - Accessed on Oct. 2, 2015 N1 - Last updated - 2015-12-31 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - achondrites; atmosphere; basalts; carbon; chlorine; crust; degassing; halogens; igneous rocks; isotopes; magmas; mantle; Mars; Martian meteorites; melting; meteorites; noble gases; planetary interiors; planets; stony meteorites; sulfur; terrestrial planets; volatile elements; volatiles; volcanic rocks; water ER - TY - JOUR T1 - A topographic model of Mercury's northern hemisphere form combined MESSENGER stereo photogrammetry and laser altimetry AN - 1752579388; 2016-003006 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Oberst, Juergen AU - Stark, Alexander AU - Preusker, Frank AU - Phillips, Roger J AU - Robinson, Mark S AU - Becker, Kris J AU - Perry, Mark E AU - Neumann, Gregory A AU - Zuber, Maria T AU - Smith, David E AU - Solomon, Sean C AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract No. 1955 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - terrestrial planets KW - planets KW - topography KW - technology KW - laser methods KW - stereographic projection KW - Mercury Planet KW - altimetry KW - instruments KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1752579388?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=A+topographic+model+of+Mercury%27s+northern+hemisphere+form+combined+MESSENGER+stereo+photogrammetry+and+laser+altimetry&rft.au=Oberst%2C+Juergen%3BStark%2C+Alexander%3BPreusker%2C+Frank%3BPhillips%2C+Roger+J%3BRobinson%2C+Mark+S%3BBecker%2C+Kris+J%3BPerry%2C+Mark+E%3BNeumann%2C+Gregory+A%3BZuber%2C+Maria+T%3BSmith%2C+David+E%3BSolomon%2C+Sean+C%3BAnonymous&rft.aulast=Oberst&rft.aufirst=Juergen&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.hou.usra.edu/meetings/lpsc2015/pdf/1955.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 10 N1 - PubXState - TX N1 - Last updated - 2015-12-31 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - altimetry; instruments; laser methods; Mercury Planet; planets; stereographic projection; technology; terrestrial planets; topography ER - TY - JOUR T1 - LRO/CRaTER discoveries of the lunar radiation environment and lunar regolith alteration by radiation AN - 1752579312; 2016-003389 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Schwadron, N A AU - Spence, H E AU - Wilson, J K AU - Jordan, A P AU - Winslow, R AU - Joyce, C AU - Looper, M D AU - Case, A W AU - Petro, N E AU - Robinson, Mark S AU - Stubbs, T J AU - Zeitlin, C AU - Blake, J B AU - Kasper, J AU - Mazur, J E AU - Smith, S S AU - Townsend, L W AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 2395 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - galactic cosmic rays KW - CRaTER instrument KW - Moon KW - Lunar Reconnaissance Orbiter KW - solar energetic particle events KW - solar wind KW - protons KW - Cosmic Ray Telescope for the Effects of Radiation KW - albedo protons KW - oscillations KW - dielectric properties KW - background radiation KW - cosmic rays KW - regolith KW - particles KW - anisotropy KW - solar activity KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1752579312?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=LRO%2FCRaTER+discoveries+of+the+lunar+radiation+environment+and+lunar+regolith+alteration+by+radiation&rft.au=Schwadron%2C+N+A%3BSpence%2C+H+E%3BWilson%2C+J+K%3BJordan%2C+A+P%3BWinslow%2C+R%3BJoyce%2C+C%3BLooper%2C+M+D%3BCase%2C+A+W%3BPetro%2C+N+E%3BRobinson%2C+Mark+S%3BStubbs%2C+T+J%3BZeitlin%2C+C%3BBlake%2C+J+B%3BKasper%2C+J%3BMazur%2C+J+E%3BSmith%2C+S+S%3BTownsend%2C+L+W%3BAnonymous&rft.aulast=Schwadron&rft.aufirst=N&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.hou.usra.edu/meetings/lpsc2015/pdf/2395.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 15 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Sept. 25, 2015 N1 - Last updated - 2015-12-31 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - albedo protons; anisotropy; background radiation; Cosmic Ray Telescope for the Effects of Radiation; cosmic rays; CRaTER instrument; dielectric properties; galactic cosmic rays; Lunar Reconnaissance Orbiter; Moon; oscillations; particles; protons; regolith; solar activity; solar energetic particle events; solar wind ER - TY - JOUR T1 - Lunar impact ejecta strewn fields; distal regions of oriented rocky deposits AN - 1752579160; 2016-003400 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Bandfield, J L AU - Cahill, J T S AU - Carter, L M AU - Neish, C D AU - Patterson, G W AU - Paige, D A AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 1563 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - strewn fields KW - orientation KW - impact features KW - Moon KW - Lunar Reconnaissance Orbiter KW - secondary craters KW - impacts KW - highlands KW - ejecta KW - melts KW - impact melts KW - farside KW - impact craters KW - antipode KW - Tycho Crater KW - Diviner Lunar Radiometer Experiment KW - rocks KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1752579160?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Lunar+impact+ejecta+strewn+fields%3B+distal+regions+of+oriented+rocky+deposits&rft.au=Bandfield%2C+J+L%3BCahill%2C+J+T+S%3BCarter%2C+L+M%3BNeish%2C+C+D%3BPatterson%2C+G+W%3BPaige%2C+D+A%3BAnonymous&rft.aulast=Bandfield&rft.aufirst=J&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.hou.usra.edu/meetings/lpsc2015/pdf/1563.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 10 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Sept. 29, 2015 N1 - Last updated - 2015-12-31 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - antipode; Diviner Lunar Radiometer Experiment; ejecta; farside; highlands; impact craters; impact features; impact melts; impacts; Lunar Reconnaissance Orbiter; melts; Moon; orientation; rocks; secondary craters; strewn fields; Tycho Crater ER - TY - JOUR T1 - Systematic oxygen isotope variations within a single Vigarano CAI surrounded by a uniformly (super 16) O-rich Wark-Lovering rim AN - 1752579051; 2016-003378 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Needham, Andrew W AU - Messenger, Scott AU - Keller, Lindsay P AU - Simon, Justin I AU - Han, Jangmi AU - Mishra, R K AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 2865 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - sorosilicates KW - silicates KW - alteration KW - stony meteorites KW - oxygen KW - ion probe data KW - isotopes KW - calcium-aluminum inclusions KW - mass spectra KW - CV chondrites KW - stable isotopes KW - meteorites KW - melilite group KW - pyroxene group KW - clinopyroxene KW - Wark-Lovering rims KW - inclusions KW - orthosilicates KW - oxides KW - spectra KW - fassaite KW - chondrites KW - zoning KW - O-17/O-16 KW - chain silicates KW - isotope ratios KW - spinel KW - Vigarano Meteorite KW - NanoSIMS spectra KW - carbonaceous chondrites KW - gehlenite KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1752579051?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Systematic+oxygen+isotope+variations+within+a+single+Vigarano+CAI+surrounded+by+a+uniformly+%28super+16%29+O-rich+Wark-Lovering+rim&rft.au=Needham%2C+Andrew+W%3BMessenger%2C+Scott%3BKeller%2C+Lindsay+P%3BSimon%2C+Justin+I%3BHan%2C+Jangmi%3BMishra%2C+R+K%3BAnonymous&rft.aulast=Needham&rft.aufirst=Andrew&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.hou.usra.edu/meetings/lpsc2015/pdf/2865.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 6 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Sept. 21, 2015 N1 - Last updated - 2015-12-31 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - alteration; calcium-aluminum inclusions; carbonaceous chondrites; chain silicates; chondrites; clinopyroxene; CV chondrites; fassaite; gehlenite; inclusions; ion probe data; isotope ratios; isotopes; mass spectra; melilite group; meteorites; NanoSIMS spectra; O-17/O-16; orthosilicates; oxides; oxygen; pyroxene group; silicates; sorosilicates; spectra; spinel; stable isotopes; stony meteorites; Vigarano Meteorite; Wark-Lovering rims; zoning ER - TY - JOUR T1 - "Fill and spill" lava emplacement associated with the December 1974 flow on Kilauea Volcano, Hawai'i, USA AN - 1752578644; 2016-003363 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Hamilton, C W AU - Scheidt, S P AU - Bleacher, Jacob E AU - Irwin, R P, III AU - Garry, W B AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 1072 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - United States KW - Hawaii Island KW - lava lakes KW - effusion KW - pahoehoe KW - satellites KW - Kilauea KW - discharge KW - lava flows KW - Hawaii County Hawaii KW - Hawaii KW - rates KW - East Pacific Ocean Islands KW - spillways KW - emplacement KW - terrestrial planets KW - planets KW - lava KW - eruptions KW - natural analogs KW - Oceania KW - volcanoes KW - terrestrial comparison KW - Polynesia KW - aa lava KW - 04:Extraterrestrial geology KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1752578644?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=%22Fill+and+spill%22+lava+emplacement+associated+with+the+December+1974+flow+on+Kilauea+Volcano%2C+Hawai%27i%2C+USA&rft.au=Hamilton%2C+C+W%3BScheidt%2C+S+P%3BBleacher%2C+Jacob+E%3BIrwin%2C+R+P%2C+III%3BGarry%2C+W+B%3BAnonymous&rft.aulast=Hamilton&rft.aufirst=C&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.hou.usra.edu/meetings/lpsc2015/pdf/1072.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 12 N1 - PubXState - TX N1 - Document feature - illus. incl. sketch map N1 - SuppNotes - Accessed on Sept. 8, 2015 N1 - Last updated - 2015-12-31 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - aa lava; discharge; East Pacific Ocean Islands; effusion; emplacement; eruptions; Hawaii; Hawaii County Hawaii; Hawaii Island; Kilauea; lava; lava flows; lava lakes; natural analogs; Oceania; pahoehoe; planets; Polynesia; rates; satellites; spillways; terrestrial comparison; terrestrial planets; United States; volcanoes ER - TY - JOUR T1 - Exploring subsurface lunar voids using surface gravimetry AN - 1752578643; 2016-003047 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Carroll, Kieran A AU - Hatch, David AU - Ghent, R R AU - Stanley, Sabine AU - Urbancic, N AU - Williamson, Marie-Claude AU - Garry, W B AU - Talwani, Manik AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract No. 1746 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - technology KW - Lacus Mortis KW - Moon KW - geophysical methods KW - melts KW - exploration KW - gravity methods KW - lava tubes KW - volcanic features KW - craters KW - lunar interior KW - instruments KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1752578643?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Microbiological+Methods&rft.atitle=Selection+of+DNA+aptamers+against+uropathogenic+Escherichia+coli+NSM59+by+quantitative+PCR+controlled+Cell-SELEX&rft.au=Savory%2C+Nasa%3BNzakizwanayo%2C+Jonathan%3BAbe%2C+Koichi%3BYoshida%2C+Wataru%3BFerri%2C+Stefano%3BDedi%2C+Cinzia%3BJones%2C+Brian+V%3BIkebukuro%2C+Kazunori&rft.aulast=Savory&rft.aufirst=Nasa&rft.date=2014-09-01&rft.volume=104&rft.issue=&rft.spage=94&rft.isbn=&rft.btitle=&rft.title=Journal+of+Microbiological+Methods&rft.issn=01677012&rft_id=info:doi/10.1016%2Fj.mimet.2014.06.016 L2 - http://www.hou.usra.edu/meetings/lpsc2015/pdf/1746.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 7 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2015-12-31 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - craters; exploration; geophysical methods; gravity methods; instruments; Lacus Mortis; lava tubes; lunar interior; melts; Moon; technology; volcanic features ER - TY - JOUR T1 - Hydrogen isotopes record the history of the Martian hydrosphere and atmosphere AN - 1752577936; 2016-003404 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Usui, Tomohiro AU - Simon, Justin I AU - Jones, John H AU - Kurokawa, H AU - Sato, M AU - Alexander, C M O'D AU - Wang, J AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 1593 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - water KW - isotopes KW - paleohydrology KW - isotope ratios KW - paleoatmosphere KW - mantle KW - Mars KW - stable isotopes KW - terrestrial planets KW - planets KW - D/H KW - ice KW - hydrogen KW - ground ice KW - deuterium KW - crust KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1752577936?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Hydrogen+isotopes+record+the+history+of+the+Martian+hydrosphere+and+atmosphere&rft.au=Usui%2C+Tomohiro%3BSimon%2C+Justin+I%3BJones%2C+John+H%3BKurokawa%2C+H%3BSato%2C+M%3BAlexander%2C+C+M+O%27D%3BWang%2C+J%3BAnonymous&rft.aulast=Usui&rft.aufirst=Tomohiro&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.hou.usra.edu/meetings/lpsc2015/pdf/1593.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 7 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Sept. 30, 2015 N1 - Last updated - 2015-12-31 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - crust; D/H; deuterium; ground ice; hydrogen; ice; isotope ratios; isotopes; mantle; Mars; paleoatmosphere; paleohydrology; planets; stable isotopes; terrestrial planets; water ER - TY - JOUR T1 - Oxidation of manganese at Kimberley, Gale Crater; more free oxygen in Mars' past? AN - 1752577708; 2016-003361 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Lanza, N L AU - Wiens, R C AU - Arvidson, R E AU - Clark, B C AU - Fischer, W W AU - Gellert, R AU - Grotzinger, J P AU - Hurowitz, Joel A AU - McLennan, S M AU - Morris, R V AU - Rice, M S AU - Bell, J F, III AU - Berger, J A AU - Blaney, Diana L AU - Blank, J G AU - Bridges, N T AU - Calef, F J, III AU - Campbell, J L AU - Clegg, S M AU - Cousin, Agnes AU - Edgett, K S AU - Fabre, C AU - Fisk, M R AU - Forni, O AU - Frydenvang, J AU - Hardy, K R AU - Hardgrove, C AU - Johnson, J R AU - Kah, L C AU - Lasue, J AU - Le Mouelic, S AU - Malin, M C AU - Mangold, N AU - Martin-Torres, J AU - Maurice, S AU - McBride, M J AU - Ming, D W AU - Newsom, H E AU - Schroeder, S AU - Thompson, L M AU - Treiman, A H AU - VanBommel, S AU - Vaniman, D T AU - Zorzano, M P AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 2893 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - calcium KW - oxygen KW - Kimberley KW - enrichment KW - Mars KW - silicon KW - manganese KW - ground water KW - Gale Crater KW - manganese oxides KW - oxides KW - valency KW - Eh KW - ChemCam instrument KW - alkaline earth metals KW - oxidation KW - atmosphere KW - solubility KW - veins KW - terrestrial planets KW - planets KW - paleoenvironment KW - alpha particle X-ray spectra KW - precipitation KW - metals KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1752577708?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Oxidation+of+manganese+at+Kimberley%2C+Gale+Crater%3B+more+free+oxygen+in+Mars%27+past%3F&rft.au=Lanza%2C+N+L%3BWiens%2C+R+C%3BArvidson%2C+R+E%3BClark%2C+B+C%3BFischer%2C+W+W%3BGellert%2C+R%3BGrotzinger%2C+J+P%3BHurowitz%2C+Joel+A%3BMcLennan%2C+S+M%3BMorris%2C+R+V%3BRice%2C+M+S%3BBell%2C+J+F%2C+III%3BBerger%2C+J+A%3BBlaney%2C+Diana+L%3BBlank%2C+J+G%3BBridges%2C+N+T%3BCalef%2C+F+J%2C+III%3BCampbell%2C+J+L%3BClegg%2C+S+M%3BCousin%2C+Agnes%3BEdgett%2C+K+S%3BFabre%2C+C%3BFisk%2C+M+R%3BForni%2C+O%3BFrydenvang%2C+J%3BHardy%2C+K+R%3BHardgrove%2C+C%3BJohnson%2C+J+R%3BKah%2C+L+C%3BLasue%2C+J%3BLe+Mouelic%2C+S%3BMalin%2C+M+C%3BMangold%2C+N%3BMartin-Torres%2C+J%3BMaurice%2C+S%3BMcBride%2C+M+J%3BMing%2C+D+W%3BNewsom%2C+H+E%3BSchroeder%2C+S%3BThompson%2C+L+M%3BTreiman%2C+A+H%3BVanBommel%2C+S%3BVaniman%2C+D+T%3BZorzano%2C+M+P%3BAnonymous&rft.aulast=Lanza&rft.aufirst=N&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.hou.usra.edu/meetings/lpsc2015/pdf/2893.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 18 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Sept. 8, 2015 N1 - Last updated - 2015-12-31 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - alkaline earth metals; alpha particle X-ray spectra; atmosphere; calcium; ChemCam instrument; Eh; enrichment; Gale Crater; ground water; Kimberley; manganese; manganese oxides; Mars; metals; oxidation; oxides; oxygen; paleoenvironment; planets; precipitation; silicon; solubility; terrestrial planets; valency; veins ER - TY - JOUR T1 - Correlations between surficial sulfur and a REE crustal assimilation signature in Martian shergottites AN - 1752577318; 2016-003353 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Jones, John H AU - Franz, Heather B AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 2859 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - stony meteorites KW - isotopes KW - Martian meteorites KW - mantle KW - Mars KW - stable isotopes KW - physical models KW - SNC Meteorites KW - assimilation KW - meteorites KW - lanthanum KW - geochemical anomalies KW - samarium KW - reduction KW - rare earths KW - alkaline earth metals KW - sulfates KW - isotope ratios KW - achondrites KW - terrestrial planets KW - planets KW - shergottite KW - metals KW - magmas KW - sulfur KW - S-33/S-32 KW - neodymium KW - sulfides KW - strontium KW - crust KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1752577318?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Mars+Science+Laboratory+relative+humidity+observations%3B+initial+results&rft.au=Harri%2C+Ari-Matti%3BGenzer%2C+M%3BKemppinen%2C+O%3BGomez-Elvira%2C+J%3BHaberle%2C+R%3BPolkko%2C+J%3BSavijarvi%2C+H%3BRenno%2C+N%3BRodriguez-Manfredi%2C+J+A%3BSchmidt%2C+W%3BRichardson%2C+M%3BSiili%2C+T%3BPaton%2C+M%3Bde+la+Torre-Juarez%2C+M%3BMakinen%2C+T%3BNewman%2C+C%3BRafkin%2C+S%3BMischna%2C+M%3BMerikallio%2C+S%3BHaukka%2C+H%3BMartin-Torres%2C+J%3BKomu%2C+M%3BZorzano%2C+M+P%3BPeinado%2C+V%3BVazquez%2C+L%3BUrqui%2C+R&rft.aulast=Harri&rft.aufirst=Ari-Matti&rft.date=2014-09-01&rft.volume=119&rft.issue=9&rft.spage=2132&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Planets&rft.issn=21699097&rft_id=info:doi/10.1002%2F2013JE004514 L2 - http://www.hou.usra.edu/meetings/lpsc2015/pdf/2859.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 6 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Sept. 2, 2015 N1 - Last updated - 2015-12-31 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - achondrites; alkaline earth metals; assimilation; crust; geochemical anomalies; isotope ratios; isotopes; lanthanum; magmas; mantle; Mars; Martian meteorites; metals; meteorites; neodymium; physical models; planets; rare earths; reduction; S-33/S-32; samarium; shergottite; SNC Meteorites; stable isotopes; stony meteorites; strontium; sulfates; sulfides; sulfur; terrestrial planets ER - TY - JOUR T1 - Mercury's rotation rate form three years of observations by the Mercury laser altimeter AN - 1752577210; 2016-003005 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Stark, Alexander AU - Oberst, Juergen AU - Neumann, Gregory A AU - Margot, Jean-Luc AU - Smith, David E AU - Zuber, Maria T AU - Solomon, Sean C AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract No. 1893 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - terrestrial planets KW - planets KW - technology KW - laser methods KW - rotation KW - Mercury Planet KW - altimetry KW - algorithms KW - instruments KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1752577210?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Mercury%27s+rotation+rate+form+three+years+of+observations+by+the+Mercury+laser+altimeter&rft.au=Stark%2C+Alexander%3BOberst%2C+Juergen%3BNeumann%2C+Gregory+A%3BMargot%2C+Jean-Luc%3BSmith%2C+David+E%3BZuber%2C+Maria+T%3BSolomon%2C+Sean+C%3BAnonymous&rft.aulast=Stark&rft.aufirst=Alexander&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.hou.usra.edu/meetings/lpsc2015/pdf/1893.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - PubXState - TX N1 - Last updated - 2015-12-31 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - algorithms; altimetry; instruments; laser methods; Mercury Planet; planets; rotation; technology; terrestrial planets ER - TY - JOUR T1 - No erosion needed; development of streamlined islands during lava channel construction AN - 1752576919; 2016-003365 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Bleacher, Jacob E AU - Hamilton, C W AU - Scheidt, S P AU - Garry, W B AU - de Wet, A AU - Whelley, P AU - Williams, D A AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 2182 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - United States KW - Hawaii Island KW - erosion KW - Mars KW - lava tubes KW - volcanic features KW - topography KW - pahoehoe KW - basalt flows KW - Kilauea KW - basaltic composition KW - lava flows KW - Hawaii County Hawaii KW - lava channels KW - Hawaii KW - channels KW - East Pacific Ocean Islands KW - terrestrial planets KW - planets KW - viscosity KW - lava KW - Ascraeus Mons KW - eruptions KW - Oceania KW - islands KW - terrestrial comparison KW - Polynesia KW - sinuosity KW - 23:Geomorphology KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1752576919?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=No+erosion+needed%3B+development+of+streamlined+islands+during+lava+channel+construction&rft.au=Bleacher%2C+Jacob+E%3BHamilton%2C+C+W%3BScheidt%2C+S+P%3BGarry%2C+W+B%3Bde+Wet%2C+A%3BWhelley%2C+P%3BWilliams%2C+D+A%3BAnonymous&rft.aulast=Bleacher&rft.aufirst=Jacob&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.hou.usra.edu/meetings/lpsc2015/pdf/2182.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 10 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Sept. 8, 2015 N1 - Last updated - 2015-12-31 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Ascraeus Mons; basalt flows; basaltic composition; channels; East Pacific Ocean Islands; erosion; eruptions; Hawaii; Hawaii County Hawaii; Hawaii Island; islands; Kilauea; lava; lava channels; lava flows; lava tubes; Mars; Oceania; pahoehoe; planets; Polynesia; sinuosity; terrestrial comparison; terrestrial planets; topography; United States; viscosity; volcanic features ER - TY - JOUR T1 - Going with the (debris) flow; young mass wasting on the Moon AN - 1752576637; 2016-003395 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Ostrach, Lillian R AU - Petro, N E AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 1180 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - imagery KW - moonquakes KW - degradation KW - impact features KW - Moon KW - erosion KW - Lunar Reconnaissance Orbiter Camera KW - landform evolution KW - surface textures KW - erosion features KW - debris flows KW - lunar craters KW - morphology KW - granular materials KW - mass movements KW - age KW - impact craters KW - gullies KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1752576637?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Going+with+the+%28debris%29+flow%3B+young+mass+wasting+on+the+Moon&rft.au=Ostrach%2C+Lillian+R%3BPetro%2C+N+E%3BAnonymous&rft.aulast=Ostrach&rft.aufirst=Lillian&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.hou.usra.edu/meetings/lpsc2015/pdf/1180.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 9 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Sept. 28, 2015 N1 - Last updated - 2016-06-17 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - age; debris flows; degradation; erosion; erosion features; granular materials; gullies; imagery; impact craters; impact features; landform evolution; lunar craters; Lunar Reconnaissance Orbiter Camera; mass movements; Moon; moonquakes; morphology; surface textures ER - TY - JOUR T1 - Early Mars climate modeling and the faint young Sun paradox AN - 1752576126; 2016-003419 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Haberle, Robert M AU - Anonymous Y1 - 2015 PY - 2015 DA - 2015 EP - Abstract no. 2111 PB - Lunar and Planetary Science Conference, Houston, TX VL - 46 KW - water KW - general circulation models KW - Noachian KW - rainfall KW - paleohydrology KW - atmosphere KW - Mars KW - paleoclimatology KW - ice sheets KW - early solar system KW - carbon dioxide KW - terrestrial planets KW - models KW - planets KW - hydrologic cycle KW - faint young Sun paradox KW - Sun KW - snow KW - runoff KW - fluvial features KW - greenhouse gases KW - greenhouse effect KW - meltwater KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1752576126?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Early+Mars+climate+modeling+and+the+faint+young+Sun+paradox&rft.au=Haberle%2C+Robert+M%3BAnonymous&rft.aulast=Haberle&rft.aufirst=Robert&rft.date=2015-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.hou.usra.edu/meetings/lpsc2015/pdf/2111.pdf LA - English DB - GeoRef N1 - Conference title - 46th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 12 N1 - PubXState - TX N1 - SuppNotes - Accessed on Oct. 7, 2015 N1 - Last updated - 2015-12-31 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - atmosphere; carbon dioxide; early solar system; faint young Sun paradox; fluvial features; general circulation models; greenhouse effect; greenhouse gases; hydrologic cycle; ice sheets; Mars; meltwater; models; Noachian; paleoclimatology; paleohydrology; planets; rainfall; runoff; snow; Sun; terrestrial planets; water ER - TY - JOUR T1 - Global albedo change and radiative cooling from anthropogenic land cover change, 1700 to 2005 based on MODIS, land use harmonization, radiative kernels, and reanalysis AN - 1696877360; 2015-069286 AB - Widespread anthropogenic land cover change over the last five centuries has influenced the global climate system through both biogeochemical and biophysical processes. Models indicate that warming from carbon emissions associated with land cover conversion has been partially offset by cooling from elevated albedo, but considerable uncertainty remains partly because of uncertainty in model treatments of albedo. This study incorporates a new spatially and temporally explicit, land cover specific albedo product derived from Moderate Resolution Imaging Spectroradiometer with a historical land use data set (Land Use Harmonization product) to provide more precise, observationally derived estimates of albedo impacts from anthropogenic land cover change with a complete range of data set specific uncertainty. The mean annual global albedo increase due to land cover change during 1700-2005 was estimated as 0.00106 + or - 0.00008 (mean + or - standard deviation), mainly driven by snow exposure due to land cover transitions from natural vegetation to agriculture. This translates to a top-of-atmosphere radiative cooling of -0.15 + or - 0.1 W m (super -2) (mean + or - standard deviation). Our estimate was in the middle of the Intergovernmental Panel on Climate Change Fifth Assessment Report range of -0.05 to -0.25 W m (super -2) and incorporates variability in albedo within land cover classes. Abstract Copyright (2014), American Geophysical Union. All Rights Reserved. JF - Geophysical Research Letters AU - Ghimire, Bardan AU - Williams, Christopher A AU - Masek, Jeffrey AU - Gao, Feng AU - Wang, Zhuosen AU - Schaaf, Crystal AU - He, Tao Y1 - 2014/12/28/ PY - 2014 DA - 2014 Dec 28 SP - 9087 EP - 9096 PB - American Geophysical Union, Washington, DC VL - 41 IS - 24 SN - 0094-8276, 0094-8276 KW - albedo KW - land cover KW - Quaternary KW - human activity KW - global change KW - satellite methods KW - Holocene KW - climate change KW - Cenozoic KW - upper Holocene KW - land use KW - remote sensing KW - MODIS KW - global warming KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1696877360?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Icarus&rft.atitle=An+estimate+of+the+dust+pickup+current+at+Enceladus&rft.au=Farrell%2C+William+M%3BWahlund%2C+J+E%3BMorooka%2C+M%3BGurnett%2C+D+A%3BKurth%2C+R+J%3BMacDowall%2C+R+J&rft.aulast=Farrell&rft.aufirst=William&rft.date=2014-09-01&rft.volume=239&rft.issue=&rft.spage=217&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2014.05.034 L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%291944-8007/issues LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2015-01-01 N1 - Number of references - 36 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2015-07-17 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - albedo; Cenozoic; climate change; global change; global warming; Holocene; human activity; land cover; land use; MODIS; Quaternary; remote sensing; satellite methods; upper Holocene DO - http://dx.doi.org/10.1002/2014GL061671 ER - TY - JOUR T1 - Aerosol transport over the western Mediterranean basin; evidence of the contribution of fine particles to desert dust plumes over Alboran Island AN - 1680752992; 2015-041560 AB - Eight months (June 2011 to January 2012) of aerosol property data were obtained at the remote site of Alboran Island (35.95 degrees N, 3.03 degrees W) in the western Mediterranean basin. The aim of this work is to assess the aerosol properties according to air mass origin and transport over this remote station with a special focus on air mass transport from North Africa. For air masses coming from North Africa, different aerosol properties showed strong contributions from mineral dust lifted from desert areas. Nevertheless, during these desert dust intrusions, some atmospheric aerosol properties are clearly different from pure mineral dust particles. Thus, Angstrom exponent alpha (440-870) presents larger values than those reported for pure desert dust measured close to dust source regions. These results combine with alpha (440, 670) - alpha (670, 870) > or = 0.1 and low single scattering albedo (omega (lambda )) values, especially at the largest wavelengths. Most of the desert dust intrusions over Alboran can be described as a mixture of dust and anthropogenic particles. The analyses support that our results apply to North Africa desert dust air masses transported from different source areas. Therefore, our results indicate a significant contribution of fine absorbing particles during desert dust intrusions over Alboran arriving from different source regions. The aerosol optical depth data retrieved from Sun photometer measurements have been used to check Moderate Resolution Imaging Spectroradiometer retrievals, and they show reasonable agreement, especially for North African air masses. Abstract Copyright (2014), American Geophysical Union. All Rights Reserved. JF - Journal of Geophysical Research: Atmospheres AU - Valenzuela, A AU - Olmo, F J AU - Lyamani, H AU - Granados-Munoz, M J AU - Anton, M AU - Guerrero-Rascado, J L AU - Quirantes, A AU - Toledano, C AU - Perez-Ramirez, D AU - Alados-Arboledas, L Y1 - 2014/12/27/ PY - 2014 DA - 2014 Dec 27 SP - 14028 EP - 14044 PB - Blackwell Wiley for American Geophysical Union, Washington, DC VL - 119 IS - 24 SN - 2169-897X, 2169-897X KW - sediment transport KW - North Africa KW - clastic sediments KW - El Alboran Island KW - provenance KW - transport KW - atmospheric transport KW - dust KW - sediments KW - Africa KW - aerosols KW - Mediterranean Sea KW - West Mediterranean KW - Mediterranean region KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1680752992?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research%3A+Atmospheres&rft.atitle=Aerosol+transport+over+the+western+Mediterranean+basin%3B+evidence+of+the+contribution+of+fine+particles+to+desert+dust+plumes+over+Alboran+Island&rft.au=Valenzuela%2C+A%3BOlmo%2C+F+J%3BLyamani%2C+H%3BGranados-Munoz%2C+M+J%3BAnton%2C+M%3BGuerrero-Rascado%2C+J+L%3BQuirantes%2C+A%3BToledano%2C+C%3BPerez-Ramirez%2C+D%3BAlados-Arboledas%2C+L&rft.aulast=Valenzuela&rft.aufirst=A&rft.date=2014-12-27&rft.volume=119&rft.issue=24&rft.spage=14028&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Atmospheres&rft.issn=2169897X&rft_id=info:doi/10.1002%2F2014JD022044 L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%292169-8996 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2015-01-01 N1 - Number of references - 40 N1 - PubXState - DC N1 - Document feature - illus. incl. 4 tables, sketch map N1 - Last updated - 2016-10-25 N1 - SubjectsTermNotLitGenreText - aerosols; Africa; atmospheric transport; clastic sediments; dust; El Alboran Island; Mediterranean region; Mediterranean Sea; North Africa; provenance; sediment transport; sediments; transport; West Mediterranean DO - http://dx.doi.org/10.1002/2014JD022044 ER - TY - NEWS T1 - NASA Super Guppy Plane Delivers Large Composite Structure for Testing AN - 1637257245 JF - UPI Space Daily AU - Kathy Barnstorff for Langley Research Center Y1 - 2014/12/17/ PY - 2014 DA - 2014 Dec 17 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1637257245?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apqrl&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=UPI+Space+Daily&rft.atitle=NASA+Super+Guppy+Plane+Delivers+Large+Composite+Structure+for+Testing&rft.au=Kathy+Barnstorff+for+Langley+Research+Center&rft.aulast=Kathy+Barnstorff+for+Langley+Research+Center&rft.aufirst=&rft.date=2014-12-17&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=UPI+Space+Daily&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Central N1 - Copyright - Copyright (c) by United Press International. All Rights Reserved. N1 - Last updated - 2014-12-17 ER - TY - JOUR T1 - Inventory of H (sub 2) O in the ancient Martian regolith from Northwest Africa 7034; the important role of Fe oxides AN - 1707521153; 2015-083859 AB - Water-rich Martian regolith breccia Northwest Africa (NWA) 7034 was analyzed by Fourier transform infrared spectroscopy and transmission electron microscopy to determine the inventory and phase distribution of H (sub 2) O (used herein to refer to both molecular H (sub 2) O and OH (super -) structural components in hydrous minerals). Hydrous Fe oxide phases (hydromaghemite and an unidentified nanocrystalline Fe-bearing oxide phase observed with hydromaghemite) and phyllosilicates (saponite) were identified as the primary mineralogic hosts for H (sub 2) O with a minor contribution from Cl-rich apatite. Based on mass balance calculations and modal abundances of minerals constrained by powder X-ray diffraction and petrography, we can account for the entire 6000 ppm H (sub 2) O measured in bulk rock analyses of NWA 7034. This H (sub 2) O is distributed evenly between hydrous Fe-rich oxides and phyllosilicates, indicating that Fe oxides could be as important as phyllosilicates for H (sub 2) O storage in Martian surface material. Abstract Copyright (2014), American Geophysical Union. All Rights Reserved. JF - Geophysical Research Letters AU - Muttik, Nele AU - McCubbin, Francis M AU - Keller, Lindsay P AU - Santos, Alison R AU - McCutcheon, Whitney A AU - Provencio, Paula P AU - Rahman, Zia AU - Shearer, Charles K AU - Boyce, Jeremy W AU - Agee, Carl B Y1 - 2014/12/16/ PY - 2014 DA - 2014 Dec 16 SP - 8235 EP - 8244 PB - American Geophysical Union, Washington, DC VL - 41 IS - 23 SN - 0094-8276, 0094-8276 KW - water KW - silicates KW - Northwest Africa Meteorites KW - iron oxides KW - saponite KW - clay minerals KW - meteorites KW - NWA 7034 KW - oxides KW - sheet silicates KW - chemical composition KW - regolith KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1707521153?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=Inventory+of+H+%28sub+2%29+O+in+the+ancient+Martian+regolith+from+Northwest+Africa+7034%3B+the+important+role+of+Fe+oxides&rft.au=Muttik%2C+Nele%3BMcCubbin%2C+Francis+M%3BKeller%2C+Lindsay+P%3BSantos%2C+Alison+R%3BMcCutcheon%2C+Whitney+A%3BProvencio%2C+Paula+P%3BRahman%2C+Zia%3BShearer%2C+Charles+K%3BBoyce%2C+Jeremy+W%3BAgee%2C+Carl+B&rft.aulast=Muttik&rft.aufirst=Nele&rft.date=2014-12-16&rft.volume=41&rft.issue=23&rft.spage=8235&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1002%2F2014GL062533 L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%291944-8007/issues LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2015-01-01 N1 - Number of references - 23 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2015-08-27 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - chemical composition; clay minerals; iron oxides; meteorites; Northwest Africa Meteorites; NWA 7034; oxides; regolith; saponite; sheet silicates; silicates; water DO - http://dx.doi.org/10.1002/2014GL062533 ER - TY - JOUR T1 - Kilometer-scale topographic roughness of Mercury; correlation with geologic features and units AN - 1707521144; 2015-083860 AB - We present maps of the topographic roughness of the northern circumpolar area of 30 Mercury at kilometer scales. The maps are derived from range profiles obtained by the 31 Mercury Laser Altimeter (MLA) instrument onboard the MErcury Surface, Space 32 ENvironment, Geochemistry, and Ranging (MESSENGER) mission. As measures of 33 roughness, we used the interquartile range of profile curvature at three baselines: 0.7 km, 34 2.8 km, and 11 km. The maps provide a synoptic overview of variations of typical 35 topographic textures. They show a dichotomy between the smooth northern plains and 36 rougher, more heavily cratered terrains. Analysis of the scale dependence of roughness 37 indicates that the regolith on Mercury is thicker than on the Moon by approximately a 38 factor of three. Roughness contrasts within northern volcanic plains of Mercury indicate a 39 younger unit inside Goethe basin and inside another unnamed stealth basin. These new 40 data permit interplanetary comparisons of topographic roughness. Abstract Copyright (2014), American Geophysical Union. All Rights Reserved. JF - Geophysical Research Letters AU - Kreslavsky, Mikhail A AU - Head, James W AU - Neumann, Gregory A AU - Zuber, Maria T AU - Smith, David E Y1 - 2014/12/16/ PY - 2014 DA - 2014 Dec 16 SP - 8245 EP - 8251 PB - American Geophysical Union, Washington, DC VL - 41 IS - 23 SN - 0094-8276, 0094-8276 KW - terrestrial planets KW - planets KW - topography KW - laser methods KW - Mercury Planet KW - surface features KW - roughness KW - altimetry KW - Goethe Basin KW - regolith KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1707521144?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=Kilometer-scale+topographic+roughness+of+Mercury%3B+correlation+with+geologic+features+and+units&rft.au=Kreslavsky%2C+Mikhail+A%3BHead%2C+James+W%3BNeumann%2C+Gregory+A%3BZuber%2C+Maria+T%3BSmith%2C+David+E&rft.aulast=Kreslavsky&rft.aufirst=Mikhail&rft.date=2014-12-16&rft.volume=41&rft.issue=23&rft.spage=8245&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1002%2F2014GL062162 L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%291944-8007/issues LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2015-01-01 N1 - Number of references - 35 N1 - PubXState - DC N1 - Document feature - illus. incl. sketch map N1 - Last updated - 2015-08-27 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - altimetry; Goethe Basin; laser methods; Mercury Planet; planets; regolith; roughness; surface features; terrestrial planets; topography DO - http://dx.doi.org/10.1002/2014GL062162 ER - TY - CPAPER T1 - The Future of the Stratosphere and the Ozone Layer T2 - 47th American Geophysical Union Fall Meeting AN - 1651745510; 6333138 JF - 47th American Geophysical Union Fall Meeting AU - Newman, Paul AU - Oman, Luke AU - Pawson, Steven AU - Fleming, Eric AU - Li, Feng AU - Jackman, Charles Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Stratosphere KW - Ozone layer UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651745510?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=The+Future+of+the+Stratosphere+and+the+Ozone+Layer&rft.au=Newman%2C+Paul%3BOman%2C+Luke%3BPawson%2C+Steven%3BFleming%2C+Eric%3BLi%2C+Feng%3BJackman%2C+Charles&rft.aulast=Newman&rft.aufirst=Paul&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Assessing the Fate of Terrigenous Dissolved Organic Carbon in River-influenced Ocean Margins T2 - 47th American Geophysical Union Fall Meeting AN - 1651745428; 6332734 JF - 47th American Geophysical Union Fall Meeting AU - Fichot, Cedric AU - Benner, Ronald Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Oceans KW - Dissolved organic carbon UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651745428?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Assessing+the+Fate+of+Terrigenous+Dissolved+Organic+Carbon+in+River-influenced+Ocean+Margins&rft.au=Fichot%2C+Cedric%3BBenner%2C+Ronald&rft.aulast=Fichot&rft.aufirst=Cedric&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Implementing Citizen Science in NASA Missions T2 - 47th American Geophysical Union Fall Meeting AN - 1651745423; 6332626 JF - 47th American Geophysical Union Fall Meeting AU - Day, Brian Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Geophysics KW - Earth sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651745423?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Implementing+Citizen+Science+in+NASA+Missions&rft.au=Day%2C+Brian&rft.aulast=Day&rft.aufirst=Brian&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Hydrological Exchanges and Organic Matter Dynamics in Highly Vulnerable Tidal Wetland Ecosystems at the Land-Ocean Interface T2 - 47th American Geophysical Union Fall Meeting AN - 1651745385; 6332741 JF - 47th American Geophysical Union Fall Meeting AU - Tzortziou, Maria AU - Neale, Patrick AU - Megonigal, Patrick AU - Loughner, Christopher Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Ecosystems KW - Organic matter KW - Wetlands KW - Vulnerability UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651745385?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Hydrological+Exchanges+and+Organic+Matter+Dynamics+in+Highly+Vulnerable+Tidal+Wetland+Ecosystems+at+the+Land-Ocean+Interface&rft.au=Tzortziou%2C+Maria%3BNeale%2C+Patrick%3BMegonigal%2C+Patrick%3BLoughner%2C+Christopher&rft.aulast=Tzortziou&rft.aufirst=Maria&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Open NASA Earth Exchange (OpenNEX): A Public-Private Partnership for Climate Change Research T2 - 47th American Geophysical Union Fall Meeting AN - 1651745347; 6332397 JF - 47th American Geophysical Union Fall Meeting AU - Nemani, Ramakrishna AU - Lee, Tsengdar AU - Michaelis, Andrew AU - Ganguly, Sangram AU - Votava, Petr Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Climatic changes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651745347?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Open+NASA+Earth+Exchange+%28OpenNEX%29%3A+A+Public-Private+Partnership+for+Climate+Change+Research&rft.au=Nemani%2C+Ramakrishna%3BLee%2C+Tsengdar%3BMichaelis%2C+Andrew%3BGanguly%2C+Sangram%3BVotava%2C+Petr&rft.aulast=Nemani&rft.aufirst=Ramakrishna&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Seeking Ancient Microbial Biosignatures With PIXL on Mars 2020 T2 - 47th American Geophysical Union Fall Meeting AN - 1651745275; 6332292 JF - 47th American Geophysical Union Fall Meeting AU - Allwood, Abigail AU - Hurowitz, Joel AU - Wade, Lawrence AU - Hodyss, Robert AU - Flannery, David Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Geophysics KW - Earth sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651745275?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Seeking+Ancient+Microbial+Biosignatures+With+PIXL+on+Mars+2020&rft.au=Allwood%2C+Abigail%3BHurowitz%2C+Joel%3BWade%2C+Lawrence%3BHodyss%2C+Robert%3BFlannery%2C+David&rft.aulast=Allwood&rft.aufirst=Abigail&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Efforts to Find, Recover and Restore "A National Treasure", The Apollo Lunar Surface Experiments Package (ALSEP) Data Set T2 - 47th American Geophysical Union Fall Meeting AN - 1651745273; 6332981 JF - 47th American Geophysical Union Fall Meeting AU - Lewis, Lynn AU - Nakamura, Yosio AU - Nagihara, Seiichi AU - Neal, Clive AU - Chi, Peter AU - Williams, David AU - Schmidt, Gregory AU - Currie, Douglas AU - Taylor, Patrick AU - Hills, H AU - Horanyi, Mihaly AU - Gruen, Eberhard AU - Dyal, Palmer AU - Freeman, John AU - Reiff, Patricia AU - Bates, James AU - Hager, Mary AU - Kiefer, Walter AU - Perkins, Derek Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Data processing KW - Packaging UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651745273?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Efforts+to+Find%2C+Recover+and+Restore+%22A+National+Treasure%22%2C+The+Apollo+Lunar+Surface+Experiments+Package+%28ALSEP%29+Data+Set&rft.au=Lewis%2C+Lynn%3BNakamura%2C+Yosio%3BNagihara%2C+Seiichi%3BNeal%2C+Clive%3BChi%2C+Peter%3BWilliams%2C+David%3BSchmidt%2C+Gregory%3BCurrie%2C+Douglas%3BTaylor%2C+Patrick%3BHills%2C+H%3BHoranyi%2C+Mihaly%3BGruen%2C+Eberhard%3BDyal%2C+Palmer%3BFreeman%2C+John%3BReiff%2C+Patricia%3BBates%2C+James%3BHager%2C+Mary%3BKiefer%2C+Walter%3BPerkins%2C+Derek&rft.aulast=Lewis&rft.aufirst=Lynn&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - The Great "Non-Event" of 7 January 2014: Challenges in CME Arrival Time and Geomagnetic Storm Strength Prediction T2 - 47th American Geophysical Union Fall Meeting AN - 1651745261; 6332996 JF - 47th American Geophysical Union Fall Meeting AU - Mays, M AU - Thompson, Barbara AU - Jian, Lan AU - Evans, Rebekah AU - Savani, Neel AU - Odstrcil, Dusan AU - Nieves-Chinchilla, Teresa AU - Richardson, Ian Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Prediction KW - Storms UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651745261?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=The+Great+%22Non-Event%22+of+7+January+2014%3A+Challenges+in+CME+Arrival+Time+and+Geomagnetic+Storm+Strength+Prediction&rft.au=Mays%2C+M%3BThompson%2C+Barbara%3BJian%2C+Lan%3BEvans%2C+Rebekah%3BSavani%2C+Neel%3BOdstrcil%2C+Dusan%3BNieves-Chinchilla%2C+Teresa%3BRichardson%2C+Ian&rft.aulast=Mays&rft.aufirst=M&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Interpreting Recent Global-Mean Temperature Changes in the Lower Stratosphere Simulated by Climate Models T2 - 47th American Geophysical Union Fall Meeting AN - 1651745259; 6333137 JF - 47th American Geophysical Union Fall Meeting AU - Zhou, Tiehan AU - Geller, Marvin AU - Martin, William AU - Song, Hua AU - Wang, Shuguang AU - Nazarenko, Larissa AU - Lo, Kwok-Wai Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Temperature effects KW - Climatic changes KW - Stratosphere KW - Models UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651745259?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Interpreting+Recent+Global-Mean+Temperature+Changes+in+the+Lower+Stratosphere+Simulated+by+Climate+Models&rft.au=Zhou%2C+Tiehan%3BGeller%2C+Marvin%3BMartin%2C+William%3BSong%2C+Hua%3BWang%2C+Shuguang%3BNazarenko%2C+Larissa%3BLo%2C+Kwok-Wai&rft.aulast=Zhou&rft.aufirst=Tiehan&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=112&rft.isbn=&rft.btitle=&rft.title=Biosensors+and+Bioelectronics&rft.issn=09565663&rft_id=info:doi/10.1016%2Fj.bios.2014.03.027 L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Linking Remote Sensing Data and Energy Balance Models for a Scalable Agriculture Insurance System for sub-Saharan Africa T2 - 47th American Geophysical Union Fall Meeting AN - 1651745253; 6333350 JF - 47th American Geophysical Union Fall Meeting AU - Brown, Molly AU - Osgood, Daniel AU - McCarty, Jessica AU - Husak, Gregory AU - Hain, Christopher AU - Neigh, Christopher Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Agriculture KW - Data processing KW - Energy balance KW - Energy KW - Remote sensing KW - Africa KW - Insurance UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651745253?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Linking+Remote+Sensing+Data+and+Energy+Balance+Models+for+a+Scalable+Agriculture+Insurance+System+for+sub-Saharan+Africa&rft.au=Brown%2C+Molly%3BOsgood%2C+Daniel%3BMcCarty%2C+Jessica%3BHusak%2C+Gregory%3BHain%2C+Christopher%3BNeigh%2C+Christopher&rft.aulast=Brown&rft.aufirst=Molly&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Performance of and Uncertainties in the Global Precipitation Measurement (GPM) Microwave Imager Retrieval Algorithm for Falling Snow Estimates T2 - 47th American Geophysical Union Fall Meeting AN - 1651745248; 6332763 JF - 47th American Geophysical Union Fall Meeting AU - Skofronick Jackson, Gail AU - Munchak, Stephen AU - Johnson, Benjamin Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Microwave radiation KW - Mathematical models KW - Snow KW - Algorithms KW - Precipitation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651745248?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Performance+of+and+Uncertainties+in+the+Global+Precipitation+Measurement+%28GPM%29+Microwave+Imager+Retrieval+Algorithm+for+Falling+Snow+Estimates&rft.au=Skofronick+Jackson%2C+Gail%3BMunchak%2C+Stephen%3BJohnson%2C+Benjamin&rft.aulast=Skofronick+Jackson&rft.aufirst=Gail&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - NASA and GLOBE Connect K-12 Students to NGSS with Big Data Applications T2 - 47th American Geophysical Union Fall Meeting AN - 1651745211; 6332811 JF - 47th American Geophysical Union Fall Meeting AU - Oostra, Daniel AU - Hunt, Thomas AU - Chambers, Lin AU - Lewis, Preston Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Data processing UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651745211?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=NASA+and+GLOBE+Connect+K-12+Students+to+NGSS+with+Big+Data+Applications&rft.au=Oostra%2C+Daniel%3BHunt%2C+Thomas%3BChambers%2C+Lin%3BLewis%2C+Preston&rft.aulast=Oostra&rft.aufirst=Daniel&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Broad-scale gravity changes following the 2011 Tohoku-Oki thrust and 2012 Indian Ocean strike-slip earthquakes and implications for coseismic dilatation and viscoelastic relaxation T2 - 47th American Geophysical Union Fall Meeting AN - 1651745174; 6332683 JF - 47th American Geophysical Union Fall Meeting AU - Han, Shin-Chan AU - Sauber, Jeanne AU - Pollitz, Frederick AU - Riva, Riccardo AU - Okal, Emile Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Earthquakes KW - Indian Ocean KW - Gravity KW - Oceans KW - Seismic activity KW - viscoelasticity UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651745174?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Broad-scale+gravity+changes+following+the+2011+Tohoku-Oki+thrust+and+2012+Indian+Ocean+strike-slip+earthquakes+and+implications+for+coseismic+dilatation+and+viscoelastic+relaxation&rft.au=Han%2C+Shin-Chan%3BSauber%2C+Jeanne%3BPollitz%2C+Frederick%3BRiva%2C+Riccardo%3BOkal%2C+Emile&rft.aulast=Han&rft.aufirst=Shin-Chan&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - The GPM Ground Validation Program: Pre to Post-Launch T2 - 47th American Geophysical Union Fall Meeting AN - 1651745120; 6332762 JF - 47th American Geophysical Union Fall Meeting AU - Petersen, Walter Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Geophysics KW - Earth sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651745120?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=The+GPM+Ground+Validation+Program%3A+Pre+to+Post-Launch&rft.au=Petersen%2C+Walter&rft.aulast=Petersen&rft.aufirst=Walter&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Quantifying the Resilience of Vegetation and Soil Moisture During Dry Spells Using Satellite Remote Sensing T2 - 47th American Geophysical Union Fall Meeting AN - 1651745103; 6333349 JF - 47th American Geophysical Union Fall Meeting AU - Stampoulis, Dimitrios AU - Andreadis, Konstantinos AU - Granger, Stephanie AU - Fisher, Joshua AU - Behrangi, Ali AU - Das, Narendra AU - Turk, Joseph Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Remote sensing KW - Vegetation KW - Soil moisture KW - Satellites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651745103?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Quantifying+the+Resilience+of+Vegetation+and+Soil+Moisture+During+Dry+Spells+Using+Satellite+Remote+Sensing&rft.au=Stampoulis%2C+Dimitrios%3BAndreadis%2C+Konstantinos%3BGranger%2C+Stephanie%3BFisher%2C+Joshua%3BBehrangi%2C+Ali%3BDas%2C+Narendra%3BTurk%2C+Joseph&rft.aulast=Stampoulis&rft.aufirst=Dimitrios&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Exploration for Evidence of Habitable Environments and Life on Mars Can Benefit from Research in Analog Environments T2 - 47th American Geophysical Union Fall Meeting AN - 1651745091; 6332287 JF - 47th American Geophysical Union Fall Meeting AU - Des Marais, David Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Analogs KW - Exploration UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651745091?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Exploration+for+Evidence+of+Habitable+Environments+and+Life+on+Mars+Can+Benefit+from+Research+in+Analog+Environments&rft.au=Des+Marais%2C+David&rft.aulast=Des+Marais&rft.aufirst=David&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Prognostic land surface albedo from a dynamic global vegetation model clumped canopy radiative transfer scheme and satellite-derived geographic forest heights T2 - 47th American Geophysical Union Fall Meeting AN - 1651745085; 6332715 JF - 47th American Geophysical Union Fall Meeting AU - Kiang, Nancy AU - Yang, Wenze AU - Ni-Meister, Wenge AU - Aleinov, Igor AU - Jonas, Jeffrey Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Albedo KW - Vegetation KW - Forests KW - Canopies KW - Radiative transfer KW - Models UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651745085?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Prognostic+land+surface+albedo+from+a+dynamic+global+vegetation+model+clumped+canopy+radiative+transfer+scheme+and+satellite-derived+geographic+forest+heights&rft.au=Kiang%2C+Nancy%3BYang%2C+Wenze%3BNi-Meister%2C+Wenge%3BAleinov%2C+Igor%3BJonas%2C+Jeffrey&rft.aulast=Kiang&rft.aufirst=Nancy&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Establishing the Geomagnetic Disturbance Benchmark Event for Evaluation of the Space Weather Hazard on Power Grids T2 - 47th American Geophysical Union Fall Meeting AN - 1651745067; 6332317 JF - 47th American Geophysical Union Fall Meeting AU - Pulkkinen, Antti AU - Bernabeu, Emanuel AU - Eichner, Jan Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Weather KW - Weather hazards KW - Disturbance KW - Benchmarks UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651745067?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Establishing+the+Geomagnetic+Disturbance+Benchmark+Event+for+Evaluation+of+the+Space+Weather+Hazard+on+Power+Grids&rft.au=Pulkkinen%2C+Antti%3BBernabeu%2C+Emanuel%3BEichner%2C+Jan&rft.aulast=Pulkkinen&rft.aufirst=Antti&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Radiation Dosimetry Experiment (RaD-X): High-Altitude Balloon Flight Mission for Improving the Nairas Aviation Radiation Model T2 - 47th American Geophysical Union Fall Meeting AN - 1651745050; 6332305 JF - 47th American Geophysical Union Fall Meeting AU - Mertens, Christopher Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Flight KW - Radiation KW - Dosimetry KW - Radiation dosimetry KW - Models KW - Balloons UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651745050?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Radiation+Dosimetry+Experiment+%28RaD-X%29%3A+High-Altitude+Balloon+Flight+Mission+for+Improving+the+Nairas+Aviation+Radiation+Model&rft.au=Mertens%2C+Christopher&rft.aulast=Mertens&rft.aufirst=Christopher&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Assessment of Global Warming and Aerosol Impacts on the Asian Monsoon T2 - 47th American Geophysical Union Fall Meeting AN - 1651745037; 6332499 JF - 47th American Geophysical Union Fall Meeting AU - Lau, William AU - Kim, Kyu Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Aerosols KW - Climatic changes KW - Global warming KW - Greenhouse gases KW - Monsoons UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651745037?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Assessment+of+Global+Warming+and+Aerosol+Impacts+on+the+Asian+Monsoon&rft.au=Lau%2C+William%3BKim%2C+Kyu&rft.aulast=Lau&rft.aufirst=William&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - The Mars 2020 Mission: The Next Step Forward in Mars Exploration T2 - 47th American Geophysical Union Fall Meeting AN - 1651745002; 6332286 JF - 47th American Geophysical Union Fall Meeting AU - Meyer, Michael AU - Schulte, Mitchell Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Exploration UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651745002?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=The+Mars+2020+Mission%3A+The+Next+Step+Forward+in+Mars+Exploration&rft.au=Meyer%2C+Michael%3BSchulte%2C+Mitchell&rft.aulast=Meyer&rft.aufirst=Michael&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Online Comparison of Precipitation Products during the GPM Era T2 - 47th American Geophysical Union Fall Meeting AN - 1651744965; 6332765 JF - 47th American Geophysical Union Fall Meeting AU - Liu, Zhong Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Precipitation KW - Internet UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651744965?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Online+Comparison+of+Precipitation+Products+during+the+GPM+Era&rft.au=Liu%2C+Zhong&rft.aulast=Liu&rft.aufirst=Zhong&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - CALIPSO Measurements of Saharan Dust Properties near Source and Transport Regions T2 - 47th American Geophysical Union Fall Meeting AN - 1651744864; 6332571 JF - 47th American Geophysical Union Fall Meeting AU - Omar, Ali AU - Liu, Zhaoyan AU - Tackett, Jason AU - Vaughan, Mark AU - Trepte, Charles AU - Winker, David Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Africa, Sahara Desert KW - Dust UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651744864?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=CALIPSO+Measurements+of+Saharan+Dust+Properties+near+Source+and+Transport+Regions&rft.au=Omar%2C+Ali%3BLiu%2C+Zhaoyan%3BTackett%2C+Jason%3BVaughan%2C+Mark%3BTrepte%2C+Charles%3BWinker%2C+David&rft.aulast=Omar&rft.aufirst=Ali&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Model analysis of the tropospheric ozone trend over Reunion Island from 1992 to 2011 T2 - 47th American Geophysical Union Fall Meeting AN - 1651744806; 6332573 JF - 47th American Geophysical Union Fall Meeting AU - Liu, Junhua AU - Rodriguez, Jose AU - Thompson, Anne AU - Douglass, Anne AU - Olsen, Mark AU - Steenrod, Stephen AU - Logan, Jennifer Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Islands KW - Troposphere KW - Models KW - Ozone UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651744806?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Model+analysis+of+the+tropospheric+ozone+trend+over+Reunion+Island+from+1992+to+2011&rft.au=Liu%2C+Junhua%3BRodriguez%2C+Jose%3BThompson%2C+Anne%3BDouglass%2C+Anne%3BOlsen%2C+Mark%3BSteenrod%2C+Stephen%3BLogan%2C+Jennifer&rft.aulast=Liu&rft.aufirst=Junhua&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Air Mass Origin in the Arctic and its Response to Future Warming T2 - 47th American Geophysical Union Fall Meeting AN - 1651744739; 6333221 JF - 47th American Geophysical Union Fall Meeting AU - Orbe, Clara AU - Newman, Paul AU - Waugh, Darryn AU - Holzer, Mark AU - Oman, Luke AU - Polvani, Lorenzo AU - Li, Feng Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Air masses KW - Polar environments KW - Arctic UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651744739?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Air+Mass+Origin+in+the+Arctic+and+its+Response+to+Future+Warming&rft.au=Orbe%2C+Clara%3BNewman%2C+Paul%3BWaugh%2C+Darryn%3BHolzer%2C+Mark%3BOman%2C+Luke%3BPolvani%2C+Lorenzo%3BLi%2C+Feng&rft.aulast=Orbe&rft.aufirst=Clara&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Radar Detections of Buried Supraglacial Lakes Across the Greenland Ice Sheet T2 - 47th American Geophysical Union Fall Meeting AN - 1651744711; 6332619 JF - 47th American Geophysical Union Fall Meeting AU - Koenig, Lora Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Ice KW - Lakes KW - Greenland, Greenland Ice Sheet KW - Radar KW - Glaciation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651744711?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Radar+Detections+of+Buried+Supraglacial+Lakes+Across+the+Greenland+Ice+Sheet&rft.au=Koenig%2C+Lora&rft.aulast=Koenig&rft.aufirst=Lora&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Soft X-ray and ENA imaging of the Earth's dayside magnetosphere : OpenGGCM modeling results T2 - 47th American Geophysical Union Fall Meeting AN - 1651744679; 6333029 JF - 47th American Geophysical Union Fall Meeting AU - Connor, Hyunju AU - Sibeck, David AU - Collier, Michael AU - Kuntz, Kip AU - Raeder, Joachim Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Ionizing radiation KW - Imaging techniques UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651744679?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Soft+X-ray+and+ENA+imaging+of+the+Earth%27s+dayside+magnetosphere+%3A+OpenGGCM+modeling+results&rft.au=Connor%2C+Hyunju%3BSibeck%2C+David%3BCollier%2C+Michael%3BKuntz%2C+Kip%3BRaeder%2C+Joachim&rft.aulast=Connor&rft.aufirst=Hyunju&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Radiative Forcing and Perturbations To Climate By Anthropogenic Sources of Soil Dust Aerosols T2 - 47th American Geophysical Union Fall Meeting AN - 1651744629; 6332504 JF - 47th American Geophysical Union Fall Meeting AU - Miller, Ron AU - Perez Garcia-Pando, Carlos AU - Perlwitz, Jan AU - Ginoux, Paul Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Soil KW - Atmospheric particulates KW - Aerosols KW - Climate KW - Anthropogenic factors KW - Eolian dust KW - Dust UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651744629?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Radiative+Forcing+and+Perturbations+To+Climate+By+Anthropogenic+Sources+of+Soil+Dust+Aerosols&rft.au=Besserer%2C+Jonathan%3BNimmo%2C+Francis%3BWieczorek%2C+Mark+A%3BWeber%2C+Renee+C%3BKiefer%2C+Walter+S%3BMcGovern%2C+Patrick+J%3BAndrews-Hanna%2C+Jeffrey+C%3BSmith%2C+David+E%3BZuber%2C+Maria+T&rft.aulast=Besserer&rft.aufirst=Jonathan&rft.date=2014-08-28&rft.volume=41&rft.issue=16&rft.spage=5771&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1002%2F2014GL060240 L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Mineralogy of Fluvio-Lacustrine Sediments Investigated by Curiosity during the Prime Mission: Implications for Diagenesis T2 - 47th American Geophysical Union Fall Meeting AN - 1651744619; 6332446 JF - 47th American Geophysical Union Fall Meeting AU - Rampe, Elizabeth AU - Morris, Richard AU - Bish, David AU - Vaniman, David AU - Bristow, Thomas AU - Chipera, Steve AU - Blake, David AU - Ming, Douglas AU - Farmer, Jack AU - Morrison, Shaunna AU - Treiman, Allan AU - Achilles, Cherie AU - Crisp, Joy AU - Des Marais, David AU - Downs, Robert AU - Morookian, John AU - Sarrazin, Philippe AU - Spanovich, Nicole AU - Yen, Albert Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Mineralogy KW - Sediments KW - Diagenesis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651744619?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Mineralogy+of+Fluvio-Lacustrine+Sediments+Investigated+by+Curiosity+during+the+Prime+Mission%3A+Implications+for+Diagenesis&rft.au=Rampe%2C+Elizabeth%3BMorris%2C+Richard%3BBish%2C+David%3BVaniman%2C+David%3BBristow%2C+Thomas%3BChipera%2C+Steve%3BBlake%2C+David%3BMing%2C+Douglas%3BFarmer%2C+Jack%3BMorrison%2C+Shaunna%3BTreiman%2C+Allan%3BAchilles%2C+Cherie%3BCrisp%2C+Joy%3BDes+Marais%2C+David%3BDowns%2C+Robert%3BMorookian%2C+John%3BSarrazin%2C+Philippe%3BSpanovich%2C+Nicole%3BYen%2C+Albert&rft.aulast=Rampe&rft.aufirst=Elizabeth&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Building the Bridge to Help Engage your Audience to your Science and Mission T2 - 47th American Geophysical Union Fall Meeting AN - 1651744613; 6332809 JF - 47th American Geophysical Union Fall Meeting AU - Yuen, Karen Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Geophysics KW - Earth sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651744613?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Building+the+Bridge+to+Help+Engage+your+Audience+to+your+Science+and+Mission&rft.au=Yuen%2C+Karen&rft.aulast=Yuen&rft.aufirst=Karen&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Precursor Environmental Conditions Associated with the Termination of Madden-Julian Oscillation Events T2 - 47th American Geophysical Union Fall Meeting AN - 1651744585; 6333203 JF - 47th American Geophysical Union Fall Meeting AU - Stachnik, Justin AU - Waliser, Duane AU - Majda, Andrew Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Oscillations KW - Environmental conditions UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651744585?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Precursor+Environmental+Conditions+Associated+with+the+Termination+of+Madden-Julian+Oscillation+Events&rft.au=Stachnik%2C+Justin%3BWaliser%2C+Duane%3BMajda%2C+Andrew&rft.aulast=Stachnik&rft.aufirst=Justin&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Building a Science Communication Culture: One Agency's Approach T2 - 47th American Geophysical Union Fall Meeting AN - 1651744582; 6332632 JF - 47th American Geophysical Union Fall Meeting AU - DeWitt, Sarah AU - Tenenbaum, Laura AU - Betz, Laura Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Communication UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651744582?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Building+a+Science+Communication+Culture%3A+One+Agency%27s+Approach&rft.au=DeWitt%2C+Sarah%3BTenenbaum%2C+Laura%3BBetz%2C+Laura&rft.aulast=DeWitt&rft.aufirst=Sarah&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Solar Proton Events during Solar Cycle 24: A Multi-Spacecraft Perspective T2 - 47th American Geophysical Union Fall Meeting AN - 1651744507; 6332453 JF - 47th American Geophysical Union Fall Meeting AU - Richardson, Ian Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Protons KW - solar cycle UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651744507?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Solar+Proton+Events+during+Solar+Cycle+24%3A+A+Multi-Spacecraft+Perspective&rft.au=Richardson%2C+Ian&rft.aulast=Richardson&rft.aufirst=Ian&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Aerosol-Cloud Interactions in Ship Tracks Using Terra MODIS/MISR T2 - 47th American Geophysical Union Fall Meeting AN - 1651744483; 6332694 JF - 47th American Geophysical Union Fall Meeting AU - Chen, YI-Chun AU - Christensen, Matthew AU - Diner, David AU - Garay, Michael AU - Nelson, David Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Ships UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651744483?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Aerosol-Cloud+Interactions+in+Ship+Tracks+Using+Terra+MODIS%2FMISR&rft.au=Chen%2C+YI-Chun%3BChristensen%2C+Matthew%3BDiner%2C+David%3BGaray%2C+Michael%3BNelson%2C+David&rft.aulast=Chen&rft.aufirst=YI-Chun&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - On Variability in Satellite Terrestrial Chlorophyll Fluorescence Measurements: Relationships with Phenology and Ecosystem-Atmosphere Carbon Exchange, Vegetation Structure, Clouds, and Sun-Satellite Geometry T2 - 47th American Geophysical Union Fall Meeting AN - 1651744448; 6332020 JF - 47th American Geophysical Union Fall Meeting AU - Joiner, Joanna AU - Yoshida, Yasuko AU - Guanter, Luis AU - Zhang, Yongguang Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Clouds KW - Chlorophyll KW - Carbon KW - Fluorescence KW - Phenology KW - Remote sensing KW - Vegetation KW - Satellites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651744448?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=On+Variability+in+Satellite+Terrestrial+Chlorophyll+Fluorescence+Measurements%3A+Relationships+with+Phenology+and+Ecosystem-Atmosphere+Carbon+Exchange%2C+Vegetation+Structure%2C+Clouds%2C+and+Sun-Satellite+Geometry&rft.au=Joiner%2C+Joanna%3BYoshida%2C+Yasuko%3BGuanter%2C+Luis%3BZhang%2C+Yongguang&rft.aulast=Joiner&rft.aufirst=Joanna&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - A Disciplined Architectural Approach to Scaling Data Analysis for Massive, Scientific Data T2 - 47th American Geophysical Union Fall Meeting AN - 1651744428; 6332177 JF - 47th American Geophysical Union Fall Meeting AU - Crichton, Daniel AU - Braverman, Amy AU - Cinquini, Luca AU - Turmon, Michael AU - Lee, Huikyo AU - Law, Emily Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Data processing KW - Scaling UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651744428?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=A+Disciplined+Architectural+Approach+to+Scaling+Data+Analysis+for+Massive%2C+Scientific+Data&rft.au=Crichton%2C+Daniel%3BBraverman%2C+Amy%3BCinquini%2C+Luca%3BTurmon%2C+Michael%3BLee%2C+Huikyo%3BLaw%2C+Emily&rft.aulast=Crichton&rft.aufirst=Daniel&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Advancements for Active Remote Sensing of Carbon Dioxide from Space using the ASCENDS CarbonHawk Experiment Simulator: First Results T2 - 47th American Geophysical Union Fall Meeting AN - 1651744391; 6331829 JF - 47th American Geophysical Union Fall Meeting AU - Obland, Michael AU - Nehrir, Amin AU - Lin, Bing AU - Harrison, Fenton AU - Kooi, Susan AU - Choi, Yonghoon AU - Plant, James AU - Yang, Melissa AU - Antill, Charles AU - Campbell, Joel AU - Ismail, Syed AU - Browell, Edward AU - Meadows, Byron AU - Dobler, Jeremy AU - Zaccheo, T AU - Moore, Berrien AU - Crowell, Sean Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Simulators KW - Remote sensing KW - Carbon dioxide UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651744391?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Advancements+for+Active+Remote+Sensing+of+Carbon+Dioxide+from+Space+using+the+ASCENDS+CarbonHawk+Experiment+Simulator%3A+First+Results&rft.au=Obland%2C+Michael%3BNehrir%2C+Amin%3BLin%2C+Bing%3BHarrison%2C+Fenton%3BKooi%2C+Susan%3BChoi%2C+Yonghoon%3BPlant%2C+James%3BYang%2C+Melissa%3BAntill%2C+Charles%3BCampbell%2C+Joel%3BIsmail%2C+Syed%3BBrowell%2C+Edward%3BMeadows%2C+Byron%3BDobler%2C+Jeremy%3BZaccheo%2C+T%3BMoore%2C+Berrien%3BCrowell%2C+Sean&rft.aulast=Obland&rft.aufirst=Michael&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Mars Climate Sounder Retrievals with Two-dimensional Radiative Transfer: Implications for the Temperature Structure in the Winter Polar Region T2 - 47th American Geophysical Union Fall Meeting AN - 1651744364; 6334690 JF - 47th American Geophysical Union Fall Meeting AU - Kleinboehl, Armin AU - Friedson, Andrew AU - Schofield, John Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Temperature effects KW - Climate KW - Radiative transfer KW - Polar environments KW - Winter UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651744364?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Mars+Climate+Sounder+Retrievals+with+Two-dimensional+Radiative+Transfer%3A+Implications+for+the+Temperature+Structure+in+the+Winter+Polar+Region&rft.au=Kleinboehl%2C+Armin%3BFriedson%2C+Andrew%3BSchofield%2C+John&rft.aulast=Kleinboehl&rft.aufirst=Armin&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - An overview of NASA's ASCENDS Mission's Lidar Measurement Requirements T2 - 47th American Geophysical Union Fall Meeting AN - 1651744320; 6331828 JF - 47th American Geophysical Union Fall Meeting AU - Abshire, James AU - Browell, Edward AU - Menzies, Robert AU - Lin, Bing AU - Spiers, Gary AU - Ismail, Syed Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Reviews KW - Lidar UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651744320?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=An+overview+of+NASA%27s+ASCENDS+Mission%27s+Lidar+Measurement+Requirements&rft.au=Abshire%2C+James%3BBrowell%2C+Edward%3BMenzies%2C+Robert%3BLin%2C+Bing%3BSpiers%2C+Gary%3BIsmail%2C+Syed&rft.aulast=Abshire&rft.aufirst=James&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Global Tropospheric Noise Maps for InSAR Observations T2 - 47th American Geophysical Union Fall Meeting AN - 1651744315; 6332119 JF - 47th American Geophysical Union Fall Meeting AU - Yun, Sang-Ho AU - Hensley, Scott AU - Agram, Piyush AU - Chaubell, Mario AU - Fielding, Eric AU - Pan, Lei Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Noise levels KW - Troposphere KW - Maps UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651744315?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Global+Tropospheric+Noise+Maps+for+InSAR+Observations&rft.au=Yun%2C+Sang-Ho%3BHensley%2C+Scott%3BAgram%2C+Piyush%3BChaubell%2C+Mario%3BFielding%2C+Eric%3BPan%2C+Lei&rft.aulast=Yun&rft.aufirst=Sang-Ho&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Airborne Tropical TRopopause EXperiment (ATTREX) 2014 Western Pacific Campaign T2 - 47th American Geophysical Union Fall Meeting AN - 1651744142; 6331848 JF - 47th American Geophysical Union Fall Meeting AU - Jensen, Eric AU - Pfister, Leonhard Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - IW, Pacific KW - Tropopause UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651744142?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Airborne+Tropical+TRopopause+EXperiment+%28ATTREX%29+2014+Western+Pacific+Campaign&rft.au=Jensen%2C+Eric%3BPfister%2C+Leonhard&rft.aulast=Jensen&rft.aufirst=Eric&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - A Possible Influence of Solar System Dynamics on the Circulation of the Mars Atmosphere T2 - 47th American Geophysical Union Fall Meeting AN - 1651744035; 6334689 JF - 47th American Geophysical Union Fall Meeting AU - Shirley, James Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Atmosphere UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651744035?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=A+Possible+Influence+of+Solar+System+Dynamics+on+the+Circulation+of+the+Mars+Atmosphere&rft.au=Shirley%2C+James&rft.aulast=Shirley&rft.aufirst=James&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Solving the carbon tetrachloride (CCl4) budget mystery using surface observations T2 - 47th American Geophysical Union Fall Meeting AN - 1651743688; 6331846 JF - 47th American Geophysical Union Fall Meeting AU - Liang, Qing AU - Newman, Paul AU - Daniel, John AU - Reimann, Stefan AU - Hall, Brad AU - Dutton, Geoffrey AU - Kuijpers, Lambert Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Carbon tetrachloride KW - Budgets UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651743688?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Solving+the+carbon+tetrachloride+%28CCl4%29+budget+mystery+using+surface+observations&rft.au=Liang%2C+Qing%3BNewman%2C+Paul%3BDaniel%2C+John%3BReimann%2C+Stefan%3BHall%2C+Brad%3BDutton%2C+Geoffrey%3BKuijpers%2C+Lambert&rft.aulast=Liang&rft.aufirst=Qing&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Non-LTE Diagnostics of the IR Observations of Planetary Atmospheres T2 - 47th American Geophysical Union Fall Meeting AN - 1651743680; 6331537 JF - 47th American Geophysical Union Fall Meeting AU - Kutepov, Alexander AU - Feofilov, Artem AU - Rezac, Ladislav Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Planetary atmospheres UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651743680?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Non-LTE+Diagnostics+of+the+IR+Observations+of+Planetary+Atmospheres&rft.au=Kutepov%2C+Alexander%3BFeofilov%2C+Artem%3BRezac%2C+Ladislav&rft.aulast=Kutepov&rft.aufirst=Alexander&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Dawn: A Simulation Model for Evaluating Costs and Tradeoffs of Big Data Science Architectures T2 - 47th American Geophysical Union Fall Meeting AN - 1651743300; 6331221 JF - 47th American Geophysical Union Fall Meeting AU - Cinquini, Luca AU - Crichton, Daniel AU - Braverman, Amy AU - Kyo, Lee AU - Fuchs, Thomas AU - Turmon, Michael Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Data processing KW - Simulation KW - Models UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651743300?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Dawn%3A+A+Simulation+Model+for+Evaluating+Costs+and+Tradeoffs+of+Big+Data+Science+Architectures&rft.au=Cinquini%2C+Luca%3BCrichton%2C+Daniel%3BBraverman%2C+Amy%3BKyo%2C+Lee%3BFuchs%2C+Thomas%3BTurmon%2C+Michael&rft.aulast=Cinquini&rft.aufirst=Luca&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Structure and Dynamics of the Sub-corotating Region of Saturn's Magnetosphere: Cassini Magnetic Field Observations T2 - 47th American Geophysical Union Fall Meeting AN - 1651743237; 6331449 JF - 47th American Geophysical Union Fall Meeting AU - Smith, Edward AU - Dougherty, Michele Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Magnetic fields UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651743237?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Hydrology&rft.atitle=A+spatially+coherent+global+soil+moisture+product+with+improved+temporal+resolution&rft.au=de+Jeu%2C+Richard+A+M%3BHolmes%2C+Thomas+R+H%3BParinussa%2C+Robert+M%3BOwe%2C+Manfred&rft.aulast=de+Jeu&rft.aufirst=Richard+A&rft.date=2014-08-04&rft.volume=516&rft.issue=&rft.spage=284&rft.isbn=&rft.btitle=&rft.title=Journal+of+Hydrology&rft.issn=00221694&rft_id=info:doi/10.1016%2Fj.jhydrol.2014.02.015 L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Global Near Real-Time MODIS and Landsat Flood Mapping and Product Delivery T2 - 47th American Geophysical Union Fall Meeting AN - 1651743136; 6331254 JF - 47th American Geophysical Union Fall Meeting AU - Slayback, Daniel AU - Policelli, Frederick AU - Tokay, Maura AU - Brakenridge, G Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Landsat KW - Floods KW - Mapping UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651743136?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Global+Near+Real-Time+MODIS+and+Landsat+Flood+Mapping+and+Product+Delivery&rft.au=Slayback%2C+Daniel%3BPolicelli%2C+Frederick%3BTokay%2C+Maura%3BBrakenridge%2C+G&rft.aulast=Slayback&rft.aufirst=Daniel&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Using Citizen Science and Crowdsourcing via Aurorasaurus as a Near Real Time Data Source for Space Weather Applications T2 - 47th American Geophysical Union Fall Meeting AN - 1651743028; 6332252 JF - 47th American Geophysical Union Fall Meeting AU - MacDonald, Elizabeth AU - Heavner, Matthew AU - Hall, Michelle AU - Tapia, Andrea AU - Lalone, Nicholas AU - Clayon, Jessica AU - Case, Nathan Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Weather KW - Data processing UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651743028?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Using+Citizen+Science+and+Crowdsourcing+via+Aurorasaurus+as+a+Near+Real+Time+Data+Source+for+Space+Weather+Applications&rft.au=MacDonald%2C+Elizabeth%3BHeavner%2C+Matthew%3BHall%2C+Michelle%3BTapia%2C+Andrea%3BLalone%2C+Nicholas%3BClayon%2C+Jessica%3BCase%2C+Nathan&rft.aulast=MacDonald&rft.aufirst=Elizabeth&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - SAM Chlorine Observations at Gale Crater T2 - 47th American Geophysical Union Fall Meeting AN - 1651742967; 6331359 JF - 47th American Geophysical Union Fall Meeting AU - Conrad, Pamela Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Craters KW - Chlorine KW - Storms UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651742967?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=SAM+Chlorine+Observations+at+Gale+Crater&rft.au=Conrad%2C+Pamela&rft.aulast=Conrad&rft.aufirst=Pamela&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Effects of Two Large Solar Energetic Particle Events on Middle Atmosphere Nighttime Odd Hydrogen and Ozone Content T2 - 47th American Geophysical Union Fall Meeting AN - 1651742958; 6331535 JF - 47th American Geophysical Union Fall Meeting AU - Verkhoglyadova, Olga AU - Butala, Mark AU - Wang, Shuhui AU - Mlynczak, Martin AU - Hunt, Linda AU - Zank, Gary Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Nighttime KW - Hydrogen KW - Particulates KW - Atmosphere KW - Ozone UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651742958?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Effects+of+Two+Large+Solar+Energetic+Particle+Events+on+Middle+Atmosphere+Nighttime+Odd+Hydrogen+and+Ozone+Content&rft.au=Verkhoglyadova%2C+Olga%3BButala%2C+Mark%3BWang%2C+Shuhui%3BMlynczak%2C+Martin%3BHunt%2C+Linda%3BZank%2C+Gary&rft.aulast=Verkhoglyadova&rft.aufirst=Olga&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Towards a South Asia Land Data Assimilation System: first results for transboundary basins T2 - 47th American Geophysical Union Fall Meeting AN - 1651742888; 6331997 JF - 47th American Geophysical Union Fall Meeting AU - Peters-Lidard, Christa Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Data collection KW - Data processing KW - Basins KW - Asia UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651742888?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Towards+a+South+Asia+Land+Data+Assimilation+System%3A+first+results+for+transboundary+basins&rft.au=Peters-Lidard%2C+Christa&rft.aulast=Peters-Lidard&rft.aufirst=Christa&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - NASA's "Eyes On The Solar System:" A Real-time, 3D-Interactive Tool to Teach the Wonder of Planetary Science T2 - 47th American Geophysical Union Fall Meeting AN - 1651742827; 6331761 JF - 47th American Geophysical Union Fall Meeting AU - Hussey, Kevin Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Geophysics KW - Earth sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651742827?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=NASA%27s+%22Eyes+On+The+Solar+System%3A%22+A+Real-time%2C+3D-Interactive+Tool+to+Teach+the+Wonder+of+Planetary+Science&rft.au=Hussey%2C+Kevin&rft.aulast=Hussey&rft.aufirst=Kevin&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - The Vegetation Greenness Trend in the Arctic and Subarctic of North America from Landsat Data Record T2 - 47th American Geophysical Union Fall Meeting AN - 1651742793; 6331872 JF - 47th American Geophysical Union Fall Meeting AU - Ju, Junchang AU - Masek, Jeffrey AU - Carroll, Mark Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - North America KW - Landsat KW - Data processing KW - Vegetation KW - Polar environments KW - Arctic UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651742793?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research%3A+Atmospheres&rft.atitle=A+multiparameter+aerosol+classification+method+and+its+application+to+retrievals+from+spaceborne+polarimetry&rft.au=Russell%2C+Philip+B%3BKacenelenbogen%2C+Meloee%3BLivingston%2C+John+M%3BHasekamp%2C+Otto+P%3BBurton%2C+Sharon+P%3BSchuster%2C+Gregory+L%3BJohnson%2C+Matthew+S%3BKnobelspiesse%2C+Kirk+D%3BRedemann%2C+Jens%3BRamachandran%2C+S%3BHolben%2C+Brent&rft.aulast=Russell&rft.aufirst=Philip&rft.date=2014-08-01&rft.volume=119&rft.issue=16&rft.spage=9838&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Atmospheres&rft.issn=2169897X&rft_id=info:doi/10.1002%2F2013JD021411 L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - The D/H Ratio of the Martian Water That Formed the Yellowknife Bay Mudstone Rocks Measured By the MSL-SAM Instrument T2 - 47th American Geophysical Union Fall Meeting AN - 1651742750; 6331355 JF - 47th American Geophysical Union Fall Meeting AU - Mahaffy, Paul Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Mudstone KW - Canada, Northwest Terr., Yellowknife UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651742750?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=The+D%2FH+Ratio+of+the+Martian+Water+That+Formed+the+Yellowknife+Bay+Mudstone+Rocks+Measured+By+the+MSL-SAM+Instrument&rft.au=Mahaffy%2C+Paul&rft.aulast=Mahaffy&rft.aufirst=Paul&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Utilizing NASA Earth Observations to Enhance Flood Impact Products and Mitigation in the Lower Mekong Water Basin T2 - 47th American Geophysical Union Fall Meeting AN - 1651742721; 6331996 JF - 47th American Geophysical Union Fall Meeting AU - Doyle, Colin AU - Gao, Michael AU - Spruce, Joseph AU - Bolten, John AU - Weber, Samuel Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Mitigation KW - Floods KW - Basins UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651742721?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Utilizing+NASA+Earth+Observations+to+Enhance+Flood+Impact+Products+and+Mitigation+in+the+Lower+Mekong+Water+Basin&rft.au=Doyle%2C+Colin%3BGao%2C+Michael%3BSpruce%2C+Joseph%3BBolten%2C+John%3BWeber%2C+Samuel&rft.aulast=Doyle&rft.aufirst=Colin&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Geography of Global Forest Carbon Stocks & Dynamics T2 - 47th American Geophysical Union Fall Meeting AN - 1651742603; 6334259 JF - 47th American Geophysical Union Fall Meeting AU - Saatchi, Sassan Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Carbon KW - Forests KW - Geography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651742603?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Geography+of+Global+Forest+Carbon+Stocks+%26amp%3B+Dynamics&rft.au=Saatchi%2C+Sassan&rft.aulast=Saatchi&rft.aufirst=Sassan&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Mars Atmospheric Composition, Isotope Ratios and Seasonal Variations: Overview and Updates of the SAM Measurements at Gale Crater T2 - 47th American Geophysical Union Fall Meeting AN - 1651742601; 6333854 JF - 47th American Geophysical Union Fall Meeting AU - Webster, Christopher Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Craters KW - Isotopes KW - Reviews KW - Atmospheric chemistry KW - Storms KW - Seasonal variations UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651742601?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Mars+Atmospheric+Composition%2C+Isotope+Ratios+and+Seasonal+Variations%3A+Overview+and+Updates+of+the+SAM+Measurements+at+Gale+Crater&rft.au=Webster%2C+Christopher&rft.aulast=Webster&rft.aufirst=Christopher&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Calibration Performance and Capabilities of the New Compact Ocean Wind Vector Radiometer System T2 - 47th American Geophysical Union Fall Meeting AN - 1651742494; 6334134 JF - 47th American Geophysical Union Fall Meeting AU - Brown, Shannon AU - Focardi, Paolo AU - Kitiyakara, Amarit AU - Maiwald, Frank AU - Montes, Oliver AU - Padmanabhan, Sharmila AU - Redick, Richard AU - Russell, Damon AU - Wincentsen, James Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Radiometers KW - Oceans KW - Wind vectors KW - Wind UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651742494?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Calibration+Performance+and+Capabilities+of+the+New+Compact+Ocean+Wind+Vector+Radiometer+System&rft.au=Brown%2C+Shannon%3BFocardi%2C+Paolo%3BKitiyakara%2C+Amarit%3BMaiwald%2C+Frank%3BMontes%2C+Oliver%3BPadmanabhan%2C+Sharmila%3BRedick%2C+Richard%3BRussell%2C+Damon%3BWincentsen%2C+James&rft.aulast=Brown&rft.aufirst=Shannon&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - The tropospheric moisture and double-ITCZ biases in CMIP5 models T2 - 47th American Geophysical Union Fall Meeting AN - 1651742448; 6333825 JF - 47th American Geophysical Union Fall Meeting AU - Tian, Baijun Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Troposphere KW - Models UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651742448?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=The+tropospheric+moisture+and+double-ITCZ+biases+in+CMIP5+models&rft.au=Tian%2C+Baijun&rft.aulast=Tian&rft.aufirst=Baijun&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Interfacing with in-Situ Data Networks during the Arctic Boreal Vulnerability Experiment (ABoVE) T2 - 47th American Geophysical Union Fall Meeting AN - 1651742430; 6333266 JF - 47th American Geophysical Union Fall Meeting AU - Griffith, Peter AU - Duffy, Daniel AU - Hoy, Elizabeth AU - McInerney, Mark AU - Schnase, John AU - Sinno, Scott AU - Thompson, John Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Data processing KW - Vulnerability KW - Polar environments KW - Arctic UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651742430?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Interfacing+with+in-Situ+Data+Networks+during+the+Arctic+Boreal+Vulnerability+Experiment+%28ABoVE%29&rft.au=Griffith%2C+Peter%3BDuffy%2C+Daniel%3BHoy%2C+Elizabeth%3BMcInerney%2C+Mark%3BSchnase%2C+John%3BSinno%2C+Scott%3BThompson%2C+John&rft.aulast=Griffith&rft.aufirst=Peter&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Changing Aerosol Properties with Distance to Cloud; Is It an Artifact or Reality? T2 - 47th American Geophysical Union Fall Meeting AN - 1651742393; 6330817 JF - 47th American Geophysical Union Fall Meeting AU - Marshak, Alexander AU - Varnai, Tamas AU - Yang, Weidong AU - Wen, Guoyong Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Clouds KW - Aerosols KW - Artifacts UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651742393?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Changing+Aerosol+Properties+with+Distance+to+Cloud%3B+Is+It+an+Artifact+or+Reality%3F&rft.au=Marshak%2C+Alexander%3BVarnai%2C+Tamas%3BYang%2C+Weidong%3BWen%2C+Guoyong&rft.aulast=Marshak&rft.aufirst=Alexander&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Thermodynamics in the Suppressed Phase of the Madden-Julian Oscillation Using a Multiplatform Strategy T2 - 47th American Geophysical Union Fall Meeting AN - 1651742337; 6330895 JF - 47th American Geophysical Union Fall Meeting AU - Roberts, Jason AU - Robertson, Franklin AU - Clayson, Carol AU - Taylor, Patrick Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Oscillations KW - Thermodynamics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651742337?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Thermodynamics+in+the+Suppressed+Phase+of+the+Madden-Julian+Oscillation+Using+a+Multiplatform+Strategy&rft.au=Roberts%2C+Jason%3BRobertson%2C+Franklin%3BClayson%2C+Carol%3BTaylor%2C+Patrick&rft.aulast=Roberts&rft.aufirst=Jason&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - EcoSAR: NASA's P-band fully polarimetric single pass interferometric airborne radar T2 - 47th American Geophysical Union Fall Meeting AN - 1651742334; 6333742 JF - 47th American Geophysical Union Fall Meeting AU - Osmanoglu, Batuhan AU - Rincon, Rafael AU - Fatoyinbo, Temilola AU - Lee, Seung-Kuk AU - Sun, Guoqing AU - Daniyan, Ozaveshe AU - Harcum, Marcus Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Airborne sensing KW - Radar UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651742334?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=EcoSAR%3A+NASA%27s+P-band+fully+polarimetric+single+pass+interferometric+airborne+radar&rft.au=Osmanoglu%2C+Batuhan%3BRincon%2C+Rafael%3BFatoyinbo%2C+Temilola%3BLee%2C+Seung-Kuk%3BSun%2C+Guoqing%3BDaniyan%2C+Ozaveshe%3BHarcum%2C+Marcus&rft.aulast=Osmanoglu&rft.aufirst=Batuhan&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Towards the Implementation of GPS-based Tsunami Early Warning System Using Ionospheric Measurements T2 - 47th American Geophysical Union Fall Meeting AN - 1651742316; 6333370 JF - 47th American Geophysical Union Fall Meeting AU - Yang, Yu-ming AU - Komjathy, Attila AU - Meng, Xing AU - Verkhoglyadova, Olga AU - Mannucci, Anthony Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Tsunamis KW - Warning systems UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651742316?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Towards+the+Implementation+of+GPS-based+Tsunami+Early+Warning+System+Using+Ionospheric+Measurements&rft.au=Yang%2C+Yu-ming%3BKomjathy%2C+Attila%3BMeng%2C+Xing%3BVerkhoglyadova%2C+Olga%3BMannucci%2C+Anthony&rft.aulast=Yang&rft.aufirst=Yu-ming&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Enhancing Floodplain Management in the Lower Mekong River Basin Using Vegetation and Water Cycle Satellite Observations T2 - 47th American Geophysical Union Fall Meeting AN - 1651742237; 6331164 JF - 47th American Geophysical Union Fall Meeting AU - Bolten, John AU - Spruce, Joseph AU - Wilson, Richard AU - Strauch, Kellan AU - Doyle, Thomas AU - Srinivan, Raghavan AU - Lakshmi, Venkataraman AU - Gupta, Manika Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Flood plains KW - Water management KW - Asia, Mekong R. basin KW - Remote sensing KW - Vegetation KW - Hydrologic cycle KW - Satellites KW - River basin management UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651742237?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Enhancing+Floodplain+Management+in+the+Lower+Mekong+River+Basin+Using+Vegetation+and+Water+Cycle+Satellite+Observations&rft.au=Bolten%2C+John%3BSpruce%2C+Joseph%3BWilson%2C+Richard%3BStrauch%2C+Kellan%3BDoyle%2C+Thomas%3BSrinivan%2C+Raghavan%3BLakshmi%2C+Venkataraman%3BGupta%2C+Manika&rft.aulast=Bolten&rft.aufirst=John&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Long-Term Data Records of Biophysical Parameters from Multiple Satellite Systems T2 - 47th American Geophysical Union Fall Meeting AN - 1651742207; 6333633 JF - 47th American Geophysical Union Fall Meeting AU - Ganguly, Sangram AU - Nemani, Ramakrishna AU - Baret, Frederic AU - Myneni, Ranga AU - Zhang, Gong AU - Milesi, Cristina AU - Hashimoto, Hirofumi Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Data processing KW - Remote sensing KW - Satellites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651742207?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Long-Term+Data+Records+of+Biophysical+Parameters+from+Multiple+Satellite+Systems&rft.au=Ganguly%2C+Sangram%3BNemani%2C+Ramakrishna%3BBaret%2C+Frederic%3BMyneni%2C+Ranga%3BZhang%2C+Gong%3BMilesi%2C+Cristina%3BHashimoto%2C+Hirofumi&rft.aulast=Ganguly&rft.aufirst=Sangram&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Impact of Local and Non-local Sources of Pollution on Background US ozone: Potential Role of the Atmospheric Composition Constellation of Geostationary Sounders T2 - 47th American Geophysical Union Fall Meeting AN - 1651742180; 6333579 JF - 47th American Geophysical Union Fall Meeting AU - Bowman, Kevin AU - Lee, Meemong Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Air pollution KW - Atmospheric chemistry KW - Pollution KW - Ozone UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651742180?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Impact+of+Local+and+Non-local+Sources+of+Pollution+on+Background+US+ozone%3A+Potential+Role+of+the+Atmospheric+Composition+Constellation+of+Geostationary+Sounders&rft.au=Bowman%2C+Kevin%3BLee%2C+Meemong&rft.aulast=Bowman&rft.aufirst=Kevin&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Validating Satellite-Retrieved Cloud Properties for Weather and Climate Applications T2 - 47th American Geophysical Union Fall Meeting AN - 1651742033; 6330819 JF - 47th American Geophysical Union Fall Meeting AU - Minnis, Patrick AU - Bedka, Kristopher AU - Smith, William AU - Yost, Christopher AU - Bedka, Sarah AU - Palikonda, Rabindra AU - Spangenberg, Douglas AU - Sun-Mack, Sunny AU - Trepte, Qing AU - Dong, Xiquan AU - Xi, Baike Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Clouds KW - Weather KW - Climate UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651742033?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Validating+Satellite-Retrieved+Cloud+Properties+for+Weather+and+Climate+Applications&rft.au=Minnis%2C+Patrick%3BBedka%2C+Kristopher%3BSmith%2C+William%3BYost%2C+Christopher%3BBedka%2C+Sarah%3BPalikonda%2C+Rabindra%3BSpangenberg%2C+Douglas%3BSun-Mack%2C+Sunny%3BTrepte%2C+Qing%3BDong%2C+Xiquan%3BXi%2C+Baike&rft.aulast=Minnis&rft.aufirst=Patrick&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Effect of Salinity on the Stable Carbon Isotopic Composition of Microbial Mats and Associated Lipid Biomarkers T2 - 47th American Geophysical Union Fall Meeting AN - 1651742004; 6333661 JF - 47th American Geophysical Union Fall Meeting AU - Jahnke, Linda AU - Parenteau, Mary AU - Kubo, Michael AU - Des Marais, David Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Bioindicators KW - Carbon KW - Chemical composition KW - Salinity effects KW - Lipids KW - Biomarkers KW - biomarkers KW - Abiotic factors KW - Microbial mats UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651742004?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Effect+of+Salinity+on+the+Stable+Carbon+Isotopic+Composition+of+Microbial+Mats+and+Associated+Lipid+Biomarkers&rft.au=Jahnke%2C+Linda%3BParenteau%2C+Mary%3BKubo%2C+Michael%3BDes+Marais%2C+David&rft.aulast=Jahnke&rft.aufirst=Linda&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Investigating Warm Marine Boundary Layer Cloud Organization By Thermodynamic and Dynamic States with NASA a-Train and MERRA Reanalysis Data T2 - 47th American Geophysical Union Fall Meeting AN - 1651741996; 6333897 JF - 47th American Geophysical Union Fall Meeting AU - Kahn, Brian AU - Matheou, Georgios AU - Christensen, Matthew AU - Fetzer, Eric AU - Lebsock, Matthew AU - Teixeira, Joao AU - Yue, Qing Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Clouds KW - Data processing KW - Thermodynamics KW - Boundary layers UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651741996?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Investigating+Warm+Marine+Boundary+Layer+Cloud+Organization+By+Thermodynamic+and+Dynamic+States+with+NASA+a-Train+and+MERRA+Reanalysis+Data&rft.au=Kahn%2C+Brian%3BMatheou%2C+Georgios%3BChristensen%2C+Matthew%3BFetzer%2C+Eric%3BLebsock%2C+Matthew%3BTeixeira%2C+Joao%3BYue%2C+Qing&rft.aulast=Kahn&rft.aufirst=Brian&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Climate Model Diagnostic Analyzer Web Service System T2 - 47th American Geophysical Union Fall Meeting AN - 1651741988; 6333792 JF - 47th American Geophysical Union Fall Meeting AU - Lee, Seungwon AU - Pan, Lei AU - Zhai, Chengxing AU - Tang, Benyang AU - Jiang, Jonathan Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Climate KW - Internet UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651741988?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Climate+Model+Diagnostic+Analyzer+Web+Service+System&rft.au=Lee%2C+Seungwon%3BPan%2C+Lei%3BZhai%2C+Chengxing%3BTang%2C+Benyang%3BJiang%2C+Jonathan&rft.aulast=Lee&rft.aufirst=Seungwon&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - ER-2 Airborne Radars Data during Iphex - a New 4-Frequency Look at Precipitation T2 - 47th American Geophysical Union Fall Meeting AN - 1651741940; 6331058 JF - 47th American Geophysical Union Fall Meeting AU - Heymsfield, Gerald AU - Tian, Lin AU - McLinden, Matthew AU - Li, Lihua AU - Cervantes, Jaime AU - Venkatesh, Vijay AU - Coon, Michael Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Data processing KW - Radar KW - Precipitation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651741940?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=ER-2+Airborne+Radars+Data+during+Iphex+-+a+New+4-Frequency+Look+at+Precipitation&rft.au=Heymsfield%2C+Gerald%3BTian%2C+Lin%3BMcLinden%2C+Matthew%3BLi%2C+Lihua%3BCervantes%2C+Jaime%3BVenkatesh%2C+Vijay%3BCoon%2C+Michael&rft.aulast=Heymsfield&rft.aufirst=Gerald&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - The Impacts of Cloud Snow Radiative Effects on Pacific Oceans Surface Heat Fluxes, Surface Wind Stress, and Ocean Temperatures in Coupled GCM Simulations T2 - 47th American Geophysical Union Fall Meeting AN - 1651741936; 6330949 JF - 47th American Geophysical Union Fall Meeting AU - Li, Jui-Lin AU - Lee, Wei-Liang AU - Lee, Tong AU - Fetzer, Eric AU - Yu, Jia-Yuh Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Temperature effects KW - Wind stress KW - Clouds KW - Ocean temperature KW - Heat KW - Snow KW - Oceans KW - Pacific KW - Simulation KW - Stress UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651741936?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=The+Impacts+of+Cloud+Snow+Radiative+Effects+on+Pacific+Oceans+Surface+Heat+Fluxes%2C+Surface+Wind+Stress%2C+and+Ocean+Temperatures+in+Coupled+GCM+Simulations&rft.au=Li%2C+Jui-Lin%3BLee%2C+Wei-Liang%3BLee%2C+Tong%3BFetzer%2C+Eric%3BYu%2C+Jia-Yuh&rft.aulast=Li&rft.aufirst=Jui-Lin&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Quantifying change in North American Arctic lakes between 1990 and present T2 - 47th American Geophysical Union Fall Meeting AN - 1651741897; 6334246 JF - 47th American Geophysical Union Fall Meeting AU - Carroll, Mark AU - Wooten, Margaret AU - DiMiceli, Charlene AU - Sohlberg, Robert AU - Townshend, John Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - North America KW - Lakes KW - Polar environments KW - Arctic UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651741897?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Quantifying+change+in+North+American+Arctic+lakes+between+1990+and+present&rft.au=Carroll%2C+Mark%3BWooten%2C+Margaret%3BDiMiceli%2C+Charlene%3BSohlberg%2C+Robert%3BTownshend%2C+John&rft.aulast=Carroll&rft.aufirst=Mark&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Using Brittle Fragmentation Theory to represent Aerosol Mineral Composition T2 - 47th American Geophysical Union Fall Meeting AN - 1651741876; 6333841 JF - 47th American Geophysical Union Fall Meeting AU - Garcia-Pando, Carlos AU - Miller, Ron AU - Perlwitz, Jan Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Aerosols KW - Mineral composition KW - Minerals UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651741876?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Using+Brittle+Fragmentation+Theory+to+represent+Aerosol+Mineral+Composition&rft.au=Garcia-Pando%2C+Carlos%3BMiller%2C+Ron%3BPerlwitz%2C+Jan&rft.aulast=Garcia-Pando&rft.aufirst=Carlos&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Potential Impacts of Saharan Dust on the African Air Quality T2 - 47th American Geophysical Union Fall Meeting AN - 1651741828; 6329218 JF - 47th American Geophysical Union Fall Meeting AU - Ichoku, Charles AU - Petrenko, Maksym AU - El-Askary, Hesham AU - Wang, Jun AU - Yang, Zhifeng AU - Yue, Yun Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Africa, Sahara Desert KW - Africa KW - Air quality KW - Dust UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651741828?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Potential+Impacts+of+Saharan+Dust+on+the+African+Air+Quality&rft.au=Ichoku%2C+Charles%3BPetrenko%2C+Maksym%3BEl-Askary%2C+Hesham%3BWang%2C+Jun%3BYang%2C+Zhifeng%3BYue%2C+Yun&rft.aulast=Ichoku&rft.aufirst=Charles&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - A Multi-Component Proxy for OH Variability Measured from Space: Evaluation and Evolution T2 - 47th American Geophysical Union Fall Meeting AN - 1651741815; 6329270 JF - 47th American Geophysical Union Fall Meeting AU - Murray, Lee AU - Fiore, Arlene AU - Valin, Lukas Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Evolution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651741815?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=A+Multi-Component+Proxy+for+OH+Variability+Measured+from+Space%3A+Evaluation+and+Evolution&rft.au=Murray%2C+Lee%3BFiore%2C+Arlene%3BValin%2C+Lukas&rft.aulast=Murray&rft.aufirst=Lee&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Federated Giovanni: A Distributed Web Service for Analysis and Visualization of Remote Sensing Data T2 - 47th American Geophysical Union Fall Meeting AN - 1651741781; 6333421 JF - 47th American Geophysical Union Fall Meeting AU - Lynnes, Christopher Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Data processing KW - Remote sensing KW - Internet UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651741781?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Federated+Giovanni%3A+A+Distributed+Web+Service+for+Analysis+and+Visualization+of+Remote+Sensing+Data&rft.au=Lynnes%2C+Christopher&rft.aulast=Lynnes&rft.aufirst=Christopher&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - The spectrum of natural forest disturbances and the Amazon forest carbon balance T2 - 47th American Geophysical Union Fall Meeting AN - 1651741732; 6334184 JF - 47th American Geophysical Union Fall Meeting AU - Espirito-Santo, Fernando Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Carbon KW - South America, Amazon R. KW - Forests UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651741732?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=The+spectrum+of+natural+forest+disturbances+and+the+Amazon+forest+carbon+balance&rft.au=Espirito-Santo%2C+Fernando&rft.aulast=Espirito-Santo&rft.aufirst=Fernando&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Experimental investigations of Si-isotope fractionation associated with Fe-Si co-precipitates in simulated Precambrian seawater T2 - 47th American Geophysical Union Fall Meeting AN - 1651741725; 6333817 JF - 47th American Geophysical Union Fall Meeting AU - Zheng, Xinyuan AU - Beard, Brian AU - Reddy, Thiruchelvi AU - Johnson, Clark Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Precambrian KW - Fractionation KW - Marine environment KW - Seawater UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651741725?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Experimental+investigations+of+Si-isotope+fractionation+associated+with+Fe-Si+co-precipitates+in+simulated+Precambrian+seawater&rft.au=Zheng%2C+Xinyuan%3BBeard%2C+Brian%3BReddy%2C+Thiruchelvi%3BJohnson%2C+Clark&rft.aulast=Zheng&rft.aufirst=Xinyuan&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Enabling Web-Based GIS Tools for Internet and Mobile Devices To Improve and Expand NASA Data Accessibility and Analysis Functionality for the Renewable Energy and Agricultural Applications T2 - 47th American Geophysical Union Fall Meeting AN - 1651741650; 6333422 JF - 47th American Geophysical Union Fall Meeting AU - Ross, Amanda AU - Stackhouse, Paul AU - Tisdale, Brian AU - Tisdale, Matthew AU - Chandler, William AU - Hoell, James AU - Kusterer, John Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Resource management KW - Data processing KW - Renewable energy KW - Conservation KW - Geographic information systems KW - Environment management KW - Internet UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651741650?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Enabling+Web-Based+GIS+Tools+for+Internet+and+Mobile+Devices+To+Improve+and+Expand+NASA+Data+Accessibility+and+Analysis+Functionality+for+the+Renewable+Energy+and+Agricultural+Applications&rft.au=Ross%2C+Amanda%3BStackhouse%2C+Paul%3BTisdale%2C+Brian%3BTisdale%2C+Matthew%3BChandler%2C+William%3BHoell%2C+James%3BKusterer%2C+John&rft.aulast=Guzewich&rft.aufirst=Scott&rft.date=2014-12-01&rft.volume=119&rft.issue=12&rft.spage=2694&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Planets&rft.issn=21699097&rft_id=info:doi/10.1002%2F2014JE004704 L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Three-fluid, 3D MHD solar wind modeling with turbulence transport and eddy viscosity T2 - 47th American Geophysical Union Fall Meeting AN - 1651741646; 6333863 JF - 47th American Geophysical Union Fall Meeting AU - Usmanov, Arcadi AU - Goldstein, Melvyn AU - Matthaeus, William Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Viscosity KW - Eddy viscosity KW - Turbulence KW - Wind UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651741646?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Three-fluid%2C+3D+MHD+solar+wind+modeling+with+turbulence+transport+and+eddy+viscosity&rft.au=Usmanov%2C+Arcadi%3BGoldstein%2C+Melvyn%3BMatthaeus%2C+William&rft.aulast=Usmanov&rft.aufirst=Arcadi&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - On the Specification of Smoke Injection Heights for Aerosol Forecasting T2 - 47th American Geophysical Union Fall Meeting AN - 1651741610; 6333995 JF - 47th American Geophysical Union Fall Meeting AU - da Silva, Arlindo Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Prediction KW - Smoke KW - Aerosols UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651741610?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Antarctic+Science&rft.atitle=Polygonal+ground+in+the+McMurdo+dry+valleys+of+Antarctica+and+its+relationship+to+ice-table+depth+and+the+recent+Antarctic+climate+history&rft.au=Mellon%2C+Michael+T%3BMcKay%2C+Christopher+P%3BHeldmann%2C+Jennifer+L&rft.aulast=Mellon&rft.aufirst=Michael&rft.date=2014-08-01&rft.volume=26&rft.issue=4&rft.spage=413&rft.isbn=&rft.btitle=&rft.title=Antarctic+Science&rft.issn=09541020&rft_id=info:doi/10.1017%2FS0954102013000710 L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Swarm Observations of Field-Aligned Currents: Case Studies T2 - 47th American Geophysical Union Fall Meeting AN - 1651741604; 6334097 JF - 47th American Geophysical Union Fall Meeting AU - Le, Guan AU - Chi, Peter AU - Gjerloev, Jesper AU - Stolle, Claudia AU - Luhr, Hermann AU - Park, Jaeheung AU - Rauberg, Jan Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Case studies KW - Swarms UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651741604?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Swarm+Observations+of+Field-Aligned+Currents%3A+Case+Studies&rft.au=Le%2C+Guan%3BChi%2C+Peter%3BGjerloev%2C+Jesper%3BStolle%2C+Claudia%3BLuhr%2C+Hermann%3BPark%2C+Jaeheung%3BRauberg%2C+Jan&rft.aulast=Le&rft.aufirst=Guan&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - The Magnetospheric Response to Abrupt Variations in the IMF Orientation T2 - 47th American Geophysical Union Fall Meeting AN - 1651741589; 6333025 JF - 47th American Geophysical Union Fall Meeting AU - Sibeck, David Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Orientation behavior UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651741589?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=The+Magnetospheric+Response+to+Abrupt+Variations+in+the+IMF+Orientation&rft.au=Sibeck%2C+David&rft.aulast=Sibeck&rft.aufirst=David&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - The Multi-View Lightweight Virtual File System: Simplifying Collaboration with In-line Data Format Conversion and Big Data Volume Streaming T2 - 47th American Geophysical Union Fall Meeting AN - 1651741577; 6333796 JF - 47th American Geophysical Union Fall Meeting AU - Golpayegani, Navid AU - Halem, Milton AU - Ederer, Gregory AU - Mauoka, Edward Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Streaming KW - Data processing UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651741577?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=The+Multi-View+Lightweight+Virtual+File+System%3A+Simplifying+Collaboration+with+In-line+Data+Format+Conversion+and+Big+Data+Volume+Streaming&rft.au=Golpayegani%2C+Navid%3BHalem%2C+Milton%3BEderer%2C+Gregory%3BMauoka%2C+Edward&rft.aulast=Golpayegani&rft.aufirst=Navid&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Radiolytic Gas-Driven Cryovolcanism at Europa T2 - 47th American Geophysical Union Fall Meeting AN - 1651741539; 6333477 JF - 47th American Geophysical Union Fall Meeting AU - Cooper, John AU - Sarantos, Menelaos AU - Sittler, Edward AU - Killen, Rosemary Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Geophysics KW - Earth sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651741539?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Radiolytic+Gas-Driven+Cryovolcanism+at+Europa&rft.au=Cooper%2C+John%3BSarantos%2C+Menelaos%3BSittler%2C+Edward%3BKillen%2C+Rosemary&rft.aulast=Cooper&rft.aufirst=John&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Earthdata Search: Combining New Services and Technologies for Earth Science Data Discovery, Visualization, and Access T2 - 47th American Geophysical Union Fall Meeting AN - 1651741502; 6333419 JF - 47th American Geophysical Union Fall Meeting AU - Quinn, Patrick AU - Pilone, Daniel Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Data processing KW - Earth sciences KW - Technology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651741502?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Earthdata+Search%3A+Combining+New+Services+and+Technologies+for+Earth+Science+Data+Discovery%2C+Visualization%2C+and+Access&rft.au=Quinn%2C+Patrick%3BPilone%2C+Daniel&rft.aulast=Quinn&rft.aufirst=Patrick&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Application of Spectral Decomposition Techniques in the Assessment and Intercomparison of Models and Observations T2 - 47th American Geophysical Union Fall Meeting AN - 1651741420; 6330800 JF - 47th American Geophysical Union Fall Meeting AU - Carlson, Barbara AU - Li, Jing AU - Lacis, Andrew Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Degradation KW - Decomposition KW - Models UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651741420?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Application+of+Spectral+Decomposition+Techniques+in+the+Assessment+and+Intercomparison+of+Models+and+Observations&rft.au=Carlson%2C+Barbara%3BLi%2C+Jing%3BLacis%2C+Andrew&rft.aulast=Carlson&rft.aufirst=Barbara&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Evidence of Medium Scale (~50 km) Undulations Observed at Sunset in the Equatorial Ionosphere by Electric Field and Plasma Density Probes on the C/NOFS Satellite Below the F-Peak in Conjunction with Larger Scale (~500 km) Depletions T2 - 47th American Geophysical Union Fall Meeting AN - 1651741391; 6330640 JF - 47th American Geophysical Union Fall Meeting AU - Pfaff, Robert AU - Freudenreich, Henry AU - Klenzing, Jeffrey AU - Liebrecht, M Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Electric fields KW - Probes KW - Ionosphere KW - Remote sensing KW - Satellites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651741391?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Evidence+of+Medium+Scale+%28%7E50+km%29+Undulations+Observed+at+Sunset+in+the+Equatorial+Ionosphere+by+Electric+Field+and+Plasma+Density+Probes+on+the+C%2FNOFS+Satellite+Below+the+F-Peak+in+Conjunction+with+Larger+Scale+%28%7E500+km%29+Depletions&rft.au=Pfaff%2C+Robert%3BFreudenreich%2C+Henry%3BKlenzing%2C+Jeffrey%3BLiebrecht%2C+M&rft.aulast=Pfaff&rft.aufirst=Robert&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Titan's Surface at 2.2-Cm Wavelength: Results and Interpretations through the First Ten Years of Observation By Cassini T2 - 47th American Geophysical Union Fall Meeting AN - 1651741329; 6330497 JF - 47th American Geophysical Union Fall Meeting AU - Janssen, Michael AU - Le Gall, Alice AU - Hayes, Alexander AU - Lopes, Rosaly AU - Malaska, Michael Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Wavelength UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651741329?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Titan%27s+Surface+at+2.2-Cm+Wavelength%3A+Results+and+Interpretations+through+the+First+Ten+Years+of+Observation+By+Cassini&rft.au=Janssen%2C+Michael%3BLe+Gall%2C+Alice%3BHayes%2C+Alexander%3BLopes%2C+Rosaly%3BMalaska%2C+Michael&rft.aulast=Janssen&rft.aufirst=Michael&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Tropical Controls on the CO2 Atmospheric Growth Rate 2010-2011 from the NASA Carbon Monitoring System Flux (CMS-Flux) Project T2 - 47th American Geophysical Union Fall Meeting AN - 1651741228; 6333616 JF - 47th American Geophysical Union Fall Meeting AU - Bowman, Kevin Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Growth rate KW - Carbon KW - Carbon dioxide KW - Monitoring systems UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651741228?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2014+Annual+Conference+of+the+American+Society+for+Horticultural+Science+%28ASHS+2014%29&rft.atitle=Large+Plant+Growth+Chambers%3A+Flying+Soon+on+a+Space+Station+Near+You%21&rft.au=Massa%2C+Gioia%3BMorrow%2C+Robert%3BLevine%2C+Howard&rft.aulast=Massa&rft.aufirst=Gioia&rft.date=2014-07-28&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2014+Annual+Conference+of+the+American+Society+for+Horticultural+Science+%28ASHS+2014%29&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Cross-Frequency Coupling of Plasma Waves in the Magnetosphere T2 - 47th American Geophysical Union Fall Meeting AN - 1651741209; 6330671 JF - 47th American Geophysical Union Fall Meeting AU - Khazanov, George Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Waves UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651741209?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Cross-Frequency+Coupling+of+Plasma+Waves+in+the+Magnetosphere&rft.au=Khazanov%2C+George&rft.aulast=Khazanov&rft.aufirst=George&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Mapping Drought Impacts on Agricultural Production in California's Central Valley T2 - 47th American Geophysical Union Fall Meeting AN - 1651741190; 6330572 JF - 47th American Geophysical Union Fall Meeting AU - Melton, Forrest AU - Guzman, Alberto AU - Johnson, Lee AU - Rosevelt, Carolyn AU - Verdin, James AU - Dwyer, John AU - Mueller, Rick AU - Zakzeski, Audra AU - Thenkabail, Prasad AU - Wallace, Cynthia AU - Jones, Jeanine AU - Windell, Sean AU - Urness, John AU - Teaby, Aimee AU - Hamblin, David AU - Post, Kirk AU - Nemani, Ramakrishna Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Agricultural production KW - Mapping KW - USA, California KW - Droughts UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651741190?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Mapping+Drought+Impacts+on+Agricultural+Production+in+California%27s+Central+Valley&rft.au=Melton%2C+Forrest%3BGuzman%2C+Alberto%3BJohnson%2C+Lee%3BRosevelt%2C+Carolyn%3BVerdin%2C+James%3BDwyer%2C+John%3BMueller%2C+Rick%3BZakzeski%2C+Audra%3BThenkabail%2C+Prasad%3BWallace%2C+Cynthia%3BJones%2C+Jeanine%3BWindell%2C+Sean%3BUrness%2C+John%3BTeaby%2C+Aimee%3BHamblin%2C+David%3BPost%2C+Kirk%3BNemani%2C+Ramakrishna&rft.aulast=Melton&rft.aufirst=Forrest&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - The NASA Modern Era Reanalysis for Research and Applications, Version-2 (MERRA-2) T2 - 47th American Geophysical Union Fall Meeting AN - 1651741177; 6330785 JF - 47th American Geophysical Union Fall Meeting AU - Gelaro, Ron AU - McCarty, Will AU - Molod, Andrea AU - Suarez, Max AU - Takacs, Lawrence AU - Todling, Ricardo Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Geophysics KW - Earth sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651741177?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=The+NASA+Modern+Era+Reanalysis+for+Research+and+Applications%2C+Version-2+%28MERRA-2%29&rft.au=Gelaro%2C+Ron%3BMcCarty%2C+Will%3BMolod%2C+Andrea%3BSuarez%2C+Max%3BTakacs%2C+Lawrence%3BTodling%2C+Ricardo&rft.aulast=Gelaro&rft.aufirst=Ron&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - The Stratosphere in MERRA and MERRA-2 T2 - 47th American Geophysical Union Fall Meeting AN - 1651741148; 6330786 JF - 47th American Geophysical Union Fall Meeting AU - Pawson, Steven AU - Coy, Lawrence AU - Wargan, Krzysztof AU - McCarty, Will Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Stratosphere UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651741148?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=The+Stratosphere+in+MERRA+and+MERRA-2&rft.au=Pawson%2C+Steven%3BCoy%2C+Lawrence%3BWargan%2C+Krzysztof%3BMcCarty%2C+Will&rft.aulast=Pawson&rft.aufirst=Steven&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Observation of High Density Plasma in the Vicinity of Europa and its Potential Relationship with Plume Activity T2 - 47th American Geophysical Union Fall Meeting AN - 1651741112; 6333478 JF - 47th American Geophysical Union Fall Meeting AU - Paterson, William AU - Sittler, Edward AU - Cooper, John AU - Hartle, Richard AU - Lipatov, Alexander Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Plumes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651741112?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Observation+of+High+Density+Plasma+in+the+Vicinity+of+Europa+and+its+Potential+Relationship+with+Plume+Activity&rft.au=Paterson%2C+William%3BSittler%2C+Edward%3BCooper%2C+John%3BHartle%2C+Richard%3BLipatov%2C+Alexander&rft.aulast=Paterson&rft.aufirst=William&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - A new paradigm for constraining PM2.5 speciation by combining multiangular and polarimetric remote sensing with chemical transport model information T2 - 47th American Geophysical Union Fall Meeting AN - 1651741053; 6333998 JF - 47th American Geophysical Union Fall Meeting AU - Kalashnikova, Olga AU - Xu, Feng AU - Ge, Cui AU - Wang, Jun AU - Garay, Michael AU - Diner, David Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Particle size KW - Speciation KW - Remote sensing KW - Chemical transport KW - Models UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651741053?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=A+new+paradigm+for+constraining+PM2.5+speciation+by+combining+multiangular+and+polarimetric+remote+sensing+with+chemical+transport+model+information&rft.au=Kalashnikova%2C+Olga%3BXu%2C+Feng%3BGe%2C+Cui%3BWang%2C+Jun%3BGaray%2C+Michael%3BDiner%2C+David&rft.aulast=Kalashnikova&rft.aufirst=Olga&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - GREECE Sounding Rocket Mission Overview T2 - 47th American Geophysical Union Fall Meeting AN - 1651741049; 6330681 JF - 47th American Geophysical Union Fall Meeting AU - Samara, Marilia AU - Michell, Robert AU - Grubbs, Guy AU - Bonnell, John AU - Ogasawara, Keiichi AU - Hampton, Donald AU - Jahn, Joerg-Micha AU - Donovan, Eric AU - Gustavsson, Bjorn AU - Lanchester, Betty AU - McHarg, Matthew AU - Spanswick, Emma AU - Trondsen, Trond AU - Valek, Philip Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Greece KW - Reviews KW - Soundings UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651741049?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=GREECE+Sounding+Rocket+Mission+Overview&rft.au=Samara%2C+Marilia%3BMichell%2C+Robert%3BGrubbs%2C+Guy%3BBonnell%2C+John%3BOgasawara%2C+Keiichi%3BHampton%2C+Donald%3BJahn%2C+Joerg-Micha%3BDonovan%2C+Eric%3BGustavsson%2C+Bjorn%3BLanchester%2C+Betty%3BMcHarg%2C+Matthew%3BSpanswick%2C+Emma%3BTrondsen%2C+Trond%3BValek%2C+Philip&rft.aulast=Samara&rft.aufirst=Marilia&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Evaluation of MODIS and VIIRS Albedo Products Using Ground and Airborne Measurements and Development of Ceos/Wgcv/Lpv Albedo Ecv Protocols T2 - 47th American Geophysical Union Fall Meeting AN - 1651741012; 6330415 JF - 47th American Geophysical Union Fall Meeting AU - Wang, Zhuosen AU - Roman, Miguel AU - Schaaf, Crystal AU - Sun, Qingsong AU - Liu, Yan AU - Saenz, Edward AU - Gatebe, Charles Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Albedo UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651741012?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Evaluation+of+MODIS+and+VIIRS+Albedo+Products+Using+Ground+and+Airborne+Measurements+and+Development+of+Ceos%2FWgcv%2FLpv+Albedo+Ecv+Protocols&rft.au=Wang%2C+Zhuosen%3BRoman%2C+Miguel%3BSchaaf%2C+Crystal%3BSun%2C+Qingsong%3BLiu%2C+Yan%3BSaenz%2C+Edward%3BGatebe%2C+Charles&rft.aulast=Wang&rft.aufirst=Zhuosen&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Ionosphere-Magnetosphere Coupling from Dynamics Explorer to Swarm and Beyond T2 - 47th American Geophysical Union Fall Meeting AN - 1651741000; 6334084 JF - 47th American Geophysical Union Fall Meeting AU - Moore, Thomas AU - Clemmons, James AU - Collinson, Glyn AU - Gershman, Daniel AU - Khazanov, George AU - Kistler, Lynn AU - Knudsen, David AU - Pfaff, Robert AU - Pollock, Craig AU - Rowland, Douglas Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Swarms UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651741000?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Ionosphere-Magnetosphere+Coupling+from+Dynamics+Explorer+to+Swarm+and+Beyond&rft.au=Moore%2C+Thomas%3BClemmons%2C+James%3BCollinson%2C+Glyn%3BGershman%2C+Daniel%3BKhazanov%2C+George%3BKistler%2C+Lynn%3BKnudsen%2C+David%3BPfaff%2C+Robert%3BPollock%2C+Craig%3BRowland%2C+Douglas&rft.aulast=Moore&rft.aufirst=Thomas&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Earth Time Variable Gravity from a Spaceborne Cold Atom Gravity Gradiometer T2 - 47th American Geophysical Union Fall Meeting AN - 1651740987; 6331047 JF - 47th American Geophysical Union Fall Meeting AU - Luthcke, Scott AU - Saif, Babak AU - Black, Adam AU - Rowlands, David Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Gravity UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651740987?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Earth+Time+Variable+Gravity+from+a+Spaceborne+Cold+Atom+Gravity+Gradiometer&rft.au=Luthcke%2C+Scott%3BSaif%2C+Babak%3BBlack%2C+Adam%3BRowlands%2C+David&rft.aulast=Luthcke&rft.aufirst=Scott&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Use of Observation-Based Aerosol Fields for Detailed Cloud-Scale Modeling Studies T2 - 47th American Geophysical Union Fall Meeting AN - 1651740973; 6330816 JF - 47th American Geophysical Union Fall Meeting AU - Fridlind, Ann AU - Vogelmann, Andrew AU - Ackerman, Andrew AU - Endo, Satoshi Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Aerosols UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651740973?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Use+of+Observation-Based+Aerosol+Fields+for+Detailed+Cloud-Scale+Modeling+Studies&rft.au=Fridlind%2C+Ann%3BVogelmann%2C+Andrew%3BAckerman%2C+Andrew%3BEndo%2C+Satoshi&rft.aulast=Fridlind&rft.aufirst=Ann&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Exploring He II 304 Ang Spicules and Macrospicules at the Solar Limb T2 - 47th American Geophysical Union Fall Meeting AN - 1651740822; 6333870 JF - 47th American Geophysical Union Fall Meeting AU - Sterling, Alphonse AU - Snyder, Ian AU - Falconer, David AU - Moore, Ronald Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Limbs KW - Spicules UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651740822?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Exploring+He+II+304+Ang+Spicules+and+Macrospicules+at+the+Solar+Limb&rft.au=Sterling%2C+Alphonse%3BSnyder%2C+Ian%3BFalconer%2C+David%3BMoore%2C+Ronald&rft.aulast=Sterling&rft.aufirst=Alphonse&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - On the role of pre-onset streamers in substorm onset and development T2 - 47th American Geophysical Union Fall Meeting AN - 1651740768; 6330679 JF - 47th American Geophysical Union Fall Meeting AU - Kepko, Larry Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Streamers UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651740768?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=On+the+role+of+pre-onset+streamers+in+substorm+onset+and+development&rft.au=Kepko%2C+Larry&rft.aulast=Kepko&rft.aufirst=Larry&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Mapping Distribution and Forecasting Invasion of Prosopis juliflora in Ethiopia's Afar Region T2 - 47th American Geophysical Union Fall Meeting AN - 1651740642; 6333654 JF - 47th American Geophysical Union Fall Meeting AU - West, Amanda AU - Wakie, Tewodros AU - Luizza, Matt AU - Evangelista, Paul Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Prediction KW - Ethiopia KW - Invasions KW - Mapping KW - Prosopis juliflora UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651740642?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Mapping+Distribution+and+Forecasting+Invasion+of+Prosopis+juliflora+in+Ethiopia%27s+Afar+Region&rft.au=West%2C+Amanda%3BWakie%2C+Tewodros%3BLuizza%2C+Matt%3BEvangelista%2C+Paul&rft.aulast=West&rft.aufirst=Amanda&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - TOTAL Column Ozone from OMI - Continuuing the LONG TERM DATA Record T2 - 47th American Geophysical Union Fall Meeting AN - 1651740619; 6330301 JF - 47th American Geophysical Union Fall Meeting AU - McPeters, Richard AU - Frith, Stacey AU - Labow, Gordon AU - Seftor, Colin Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Data processing KW - Ozone UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651740619?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=TOTAL+Column+Ozone+from+OMI+-+Continuuing+the+LONG+TERM+DATA+Record&rft.au=McPeters%2C+Richard%3BFrith%2C+Stacey%3BLabow%2C+Gordon%3BSeftor%2C+Colin&rft.aulast=McPeters&rft.aufirst=Richard&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Frost monitoring and forecasting using MODIS Land Surface Temperature data and a Numerical Weather Prediction model forecasts for Eastern Africa T2 - 47th American Geophysical Union Fall Meeting AN - 1651740594; 6330574 JF - 47th American Geophysical Union Fall Meeting AU - Limaye, Ashutosh AU - Kabuchanga, Eric AU - Flores, Africa AU - Mungai, John AU - Sakwa, Vincent AU - Shaka, Ayub AU - Malaso, Susan AU - Irwin, Daniel Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Prediction KW - Temperature effects KW - Data processing KW - Mathematical models KW - Frost KW - Prediction models KW - Africa KW - Weather forecasting UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651740594?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Frost+monitoring+and+forecasting+using+MODIS+Land+Surface+Temperature+data+and+a+Numerical+Weather+Prediction+model+forecasts+for+Eastern+Africa&rft.au=Limaye%2C+Ashutosh%3BKabuchanga%2C+Eric%3BFlores%2C+Africa%3BMungai%2C+John%3BSakwa%2C+Vincent%3BShaka%2C+Ayub%3BMalaso%2C+Susan%3BIrwin%2C+Daniel&rft.aulast=Limaye&rft.aufirst=Ashutosh&rft.date=2014-12-15&rft.volume=15&rft.issue=6&rft.spage=2140&rft.isbn=&rft.btitle=&rft.title=Journal+of+Hydrometeorology&rft.issn=1525755X&rft_id=info:doi/10.1175%2FJHM-D-13-0204.1 L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Assessment of Satellite-Derived Essential Climate Variables in the Terrestrial Domain: An Overview of the Ceos Lpv Subgroup T2 - 47th American Geophysical Union Fall Meeting AN - 1651740556; 6330410 JF - 47th American Geophysical Union Fall Meeting AU - Nickeson, Jaime AU - Roman, Miguel AU - Schaepman-Strub, Gabriela Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Reviews KW - Climate UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651740556?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Assessment+of+Satellite-Derived+Essential+Climate+Variables+in+the+Terrestrial+Domain%3A+An+Overview+of+the+Ceos+Lpv+Subgroup&rft.au=Nickeson%2C+Jaime%3BRoman%2C+Miguel%3BSchaepman-Strub%2C+Gabriela&rft.aulast=Nickeson&rft.aufirst=Jaime&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - High-resolution global and local lunar gravity field models using GRAIL mission data T2 - 47th American Geophysical Union Fall Meeting AN - 1651740509; 6330238 JF - 47th American Geophysical Union Fall Meeting AU - Goossens, Sander Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Gravity field KW - Data processing KW - Gravity KW - Models UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651740509?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=High-resolution+global+and+local+lunar+gravity+field+models+using+GRAIL+mission+data&rft.au=Goossens%2C+Sander&rft.aulast=Goossens&rft.aufirst=Sander&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Fingerprints of the Greenland Ice Sheet T2 - 47th American Geophysical Union Fall Meeting AN - 1651740427; 6328307 JF - 47th American Geophysical Union Fall Meeting AU - Nowicki, Sophie Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Ice KW - Greenland, Greenland Ice Sheet KW - Glaciation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651740427?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Fingerprints+of+the+Greenland+Ice+Sheet&rft.au=Nowicki%2C+Sophie&rft.aulast=Nowicki&rft.aufirst=Sophie&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Diurnal and Semi-Diurnal Earth Rotation Derived from 35 years of VLBI measurements T2 - 47th American Geophysical Union Fall Meeting AN - 1651740404; 6328697 JF - 47th American Geophysical Union Fall Meeting AU - Gipson, John Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Diurnal variations KW - Earth rotation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651740404?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Diurnal+and+Semi-Diurnal+Earth+Rotation+Derived+from+35+years+of+VLBI+measurements&rft.au=Gipson%2C+John&rft.aulast=Gipson&rft.aufirst=John&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Magnetospheric Multiscale (MMS) Mission Status T2 - 47th American Geophysical Union Fall Meeting AN - 1651740388; 6328500 JF - 47th American Geophysical Union Fall Meeting AU - Moore, Thomas AU - Black, Ron AU - Burch, James AU - Hesse, Michael AU - Robertson, Brent AU - Spidaliere, Peter AU - Pope, Susan AU - Tooley, Craig AU - Torbert, Roy Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Geophysics KW - Earth sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651740388?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Magnetospheric+Multiscale+%28MMS%29+Mission+Status&rft.au=Moore%2C+Thomas%3BBlack%2C+Ron%3BBurch%2C+James%3BHesse%2C+Michael%3BRobertson%2C+Brent%3BSpidaliere%2C+Peter%3BPope%2C+Susan%3BTooley%2C+Craig%3BTorbert%2C+Roy&rft.aulast=Moore&rft.aufirst=Thomas&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Combined UAVSAR and GPS Estimates of Fault Slip for the M 6.0 South Napa Earthquake T2 - 47th American Geophysical Union Fall Meeting AN - 1651740386; 6330045 JF - 47th American Geophysical Union Fall Meeting AU - Donnellan, Andrea Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Earthquakes KW - Seismic activity UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651740386?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Combined+UAVSAR+and+GPS+Estimates+of+Fault+Slip+for+the+M+6.0+South+Napa+Earthquake&rft.au=Donnellan%2C+Andrea&rft.aulast=Donnellan&rft.aufirst=Andrea&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Advances in Realistic MHD Simulation T2 - 47th American Geophysical Union Fall Meeting AN - 1651740368; 6329989 JF - 47th American Geophysical Union Fall Meeting AU - Kitiashvili, Irina Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Simulation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651740368?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Advances+in+Realistic+MHD+Simulation&rft.au=Kitiashvili%2C+Irina&rft.aulast=Kitiashvili&rft.aufirst=Irina&rft.date=2014-12-15&rft.volume=15&rft.issue=6&rft.spage=2446&rft.isbn=&rft.btitle=&rft.title=Journal+of+Hydrometeorology&rft.issn=1525755X&rft_id=info:doi/10.1175%2FJHM-D-13-0132.1 L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Voyager 1 Observations of the Local Interstellar Magnetic Field T2 - 47th American Geophysical Union Fall Meeting AN - 1651740336; 6329646 JF - 47th American Geophysical Union Fall Meeting AU - Burlaga, Leonard AU - Ness, Norman Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Magnetic fields UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651740336?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Voyager+1+Observations+of+the+Local+Interstellar+Magnetic+Field&rft.au=Burlaga%2C+Leonard%3BNess%2C+Norman&rft.aulast=Burlaga&rft.aufirst=Leonard&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Icecube: Spaceflight Validation of an 874-GHz Submillimeter Wave Radiometer for Ice Cloud Remote Sensing T2 - 47th American Geophysical Union Fall Meeting AN - 1651740319; 6329929 JF - 47th American Geophysical Union Fall Meeting AU - Wu, Dong AU - Esper, Jaime AU - Ehsan, Negar AU - Piepmeier, Jeffrey AU - Racette, Paul Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Radiometers KW - Clouds KW - Ice KW - Space flight KW - Remote sensing KW - Waves UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651740319?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Icecube%3A+Spaceflight+Validation+of+an+874-GHz+Submillimeter+Wave+Radiometer+for+Ice+Cloud+Remote+Sensing&rft.au=Wu%2C+Dong%3BEsper%2C+Jaime%3BEhsan%2C+Negar%3BPiepmeier%2C+Jeffrey%3BRacette%2C+Paul&rft.aulast=Wu&rft.aufirst=Dong&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Recent Changes in Earth's Energy Budget As Observed By CERES T2 - 47th American Geophysical Union Fall Meeting AN - 1651740311; 6334467 JF - 47th American Geophysical Union Fall Meeting AU - Loeb, Norman Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Energy budget UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651740311?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Recent+Changes+in+Earth%27s+Energy+Budget+As+Observed+By+CERES&rft.au=Loeb%2C+Norman&rft.aulast=Loeb&rft.aufirst=Norman&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Localized High-Latitude Ionosphere-Thermosphere Ionization Events during the High Speed Stream Interval of 29 April - 5 May 2011 T2 - 47th American Geophysical Union Fall Meeting AN - 1651740308; 6329514 JF - 47th American Geophysical Union Fall Meeting AU - Verkhoglyadova, Olga AU - Mannucci, Anthony AU - Tsurutani, Bruce AU - Mlynczak, Martin AU - Hunt, Linda AU - Redmon, Robert AU - Green, Janet Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Stream KW - Streams KW - Ionization UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651740308?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Localized+High-Latitude+Ionosphere-Thermosphere+Ionization+Events+during+the+High+Speed+Stream+Interval+of+29+April+-+5+May+2011&rft.au=Verkhoglyadova%2C+Olga%3BMannucci%2C+Anthony%3BTsurutani%2C+Bruce%3BMlynczak%2C+Martin%3BHunt%2C+Linda%3BRedmon%2C+Robert%3BGreen%2C+Janet&rft.aulast=Verkhoglyadova&rft.aufirst=Olga&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - A Robust Multi-Scale Modeling System for the Study of Cloud and Precipitation Processes T2 - 47th American Geophysical Union Fall Meeting AN - 1651740294; 6329958 JF - 47th American Geophysical Union Fall Meeting AU - Tao, Wei-Kuo AU - Wu, Di AU - Lang, Stephen AU - Li, Xiaowen AU - Matsui, Toshihisa AU - Iguchi, Takamichi Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Clouds KW - Precipitation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651740294?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=A+Robust+Multi-Scale+Modeling+System+for+the+Study+of+Cloud+and+Precipitation+Processes&rft.au=Tao%2C+Wei-Kuo%3BWu%2C+Di%3BLang%2C+Stephen%3BLi%2C+Xiaowen%3BMatsui%2C+Toshihisa%3BIguchi%2C+Takamichi&rft.aulast=Tao&rft.aufirst=Wei-Kuo&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Use of External Sources for Calibration and Validation of L-band Missions T2 - 47th American Geophysical Union Fall Meeting AN - 1651740277; 6334132 JF - 47th American Geophysical Union Fall Meeting AU - Misra, Sidharth AU - Brown, Shannon Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Geophysics KW - Earth sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651740277?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Use+of+External+Sources+for+Calibration+and+Validation+of+L-band+Missions&rft.au=Misra%2C+Sidharth%3BBrown%2C+Shannon&rft.aulast=Misra&rft.aufirst=Sidharth&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - SMAP Global Model Calibration Using SMOS Time-Series Observations T2 - 47th American Geophysical Union Fall Meeting AN - 1651740241; 6329698 JF - 47th American Geophysical Union Fall Meeting AU - Chan, Steven AU - Njoku, Eni AU - Bindlish, Rajat AU - O'Neill, Peggy AU - Jackson, Thomas Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Time series analysis KW - Models UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651740241?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=SMAP+Global+Model+Calibration+Using+SMOS+Time-Series+Observations&rft.au=Chan%2C+Steven%3BNjoku%2C+Eni%3BBindlish%2C+Rajat%3BO%27Neill%2C+Peggy%3BJackson%2C+Thomas&rft.aulast=Chan&rft.aufirst=Steven&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=21699275&rft_id=info:doi/10.1002%2F2014JC009970 L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Does the Maritime Continent region affect sea level change of the eastern Indian Ocean? T2 - 47th American Geophysical Union Fall Meeting AN - 1651740228; 6329948 JF - 47th American Geophysical Union Fall Meeting AU - Llovel, William AU - Lee, Tong Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Continents KW - Indian Ocean KW - Oceans KW - Sea level changes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651740228?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Does+the+Maritime+Continent+region+affect+sea+level+change+of+the+eastern+Indian+Ocean%3F&rft.au=Llovel%2C+William%3BLee%2C+Tong&rft.aulast=Llovel&rft.aufirst=William&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Addressing the Challenges of Satellite and in-Situ Oceanographic Dataset Interoperability at the PO.Daac T2 - 47th American Geophysical Union Fall Meeting AN - 1651740218; 6329767 JF - 47th American Geophysical Union Fall Meeting AU - Tsontos, Vardis AU - Huang, Thomas Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Remote sensing KW - Satellites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651740218?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Addressing+the+Challenges+of+Satellite+and+in-Situ+Oceanographic+Dataset+Interoperability+at+the+PO.Daac&rft.au=Tsontos%2C+Vardis%3BHuang%2C+Thomas&rft.aulast=Tsontos&rft.aufirst=Vardis&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Multi-decadal trends of solar radiation reaching the surface: What is the role of aerosols? T2 - 47th American Geophysical Union Fall Meeting AN - 1651740180; 6334575 JF - 47th American Geophysical Union Fall Meeting AU - Chin, Mian AU - Diehl, Thomas AU - Bian, Huisheng AU - Yu, Hongbin AU - Qian, Yun AU - Wild, Martin AU - Streets, David AU - Stackhouse, Paul Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Aerosols KW - Solar radiation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651740180?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Multi-decadal+trends+of+solar+radiation+reaching+the+surface%3A+What+is+the+role+of+aerosols%3F&rft.au=Chin%2C+Mian%3BDiehl%2C+Thomas%3BBian%2C+Huisheng%3BYu%2C+Hongbin%3BQian%2C+Yun%3BWild%2C+Martin%3BStreets%2C+David%3BStackhouse%2C+Paul&rft.aulast=Chin&rft.aufirst=K&rft.date=2014-07-01&rft.volume=119&rft.issue=7&rft.spage=1637&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Planets&rft.issn=21699097&rft_id=info:doi/10.1002%2F2014JE004617 L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - A New Approach to Characterizing Landslide Hazards with Global Crowd Sourcing T2 - 47th American Geophysical Union Fall Meeting AN - 1651740177; 6334181 JF - 47th American Geophysical Union Fall Meeting AU - Bach Kirschbaum, Dalia AU - Cappelaere, Patrice AU - Stanley, Thomas AU - Hall, Benjamin AU - Franchek, Melanie Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Hazards KW - Landslides UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651740177?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=A+New+Approach+to+Characterizing+Landslide+Hazards+with+Global+Crowd+Sourcing&rft.au=Bach+Kirschbaum%2C+Dalia%3BCappelaere%2C+Patrice%3BStanley%2C+Thomas%3BHall%2C+Benjamin%3BFranchek%2C+Melanie&rft.aulast=Bach+Kirschbaum&rft.aufirst=Dalia&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Knowledge of Mercury's Exosphere from MESSENGER Observations T2 - 47th American Geophysical Union Fall Meeting AN - 1651740153; 6329632 JF - 47th American Geophysical Union Fall Meeting AU - Killen, Rosemary AU - Burger, Matthew AU - Cassidy, Timothy AU - Vervack, Ronald AU - Sarantos, Menelaos AU - Merkel, Aimee AU - McClintock, William Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Mercury UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651740153?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research%3A+Planets&rft.atitle=Lunar+interior+properties+from+the+GRAIL+Mission&rft.au=Williams%2C+James+G%3BKonopliv%2C+Alexander+S%3BBoggs%2C+Dale+H%3BPark%2C+Ryan+S%3BYuan%2C+Dah-Ning%3BLemoine%2C+Frank+G%3BGoossens%2C+Sander%3BMazarico%2C+Erwan%3BNimmo%2C+Francis%3BWeber%2C+Renee+C%3BAsmar%2C+Sami+W%3BMelosh%2C+H+Jay%3BNeumann%2C+Gregory+A%3BPhillips%2C+Roger+J%3BSmith%2C+David+E%3BSolomon%2C+Sean+C%3BWatkins%2C+Michael+M%3BWieczorek%2C+Mark+A%3BAndrews-Hanna%2C+Jeffrey+C%3BHead%2C+James+W%3BKiefer%2C+Walter+S%3BMatsuyama%2C+Isamu%3BMcGovern%2C+Patrick+J%3BTaylor%2C+G+Jeffrey%3BZuber%2C+Maria+T&rft.aulast=Williams&rft.aufirst=James&rft.date=2014-07-01&rft.volume=119&rft.issue=7&rft.spage=1546&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Planets&rft.issn=21699097&rft_id=info:doi/10.1002%2F2013JE004559 L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Ten Years Orbiting Saturn: What Have We Learned about Saturn's Atmosphere? T2 - 47th American Geophysical Union Fall Meeting AN - 1651740116; 6329444 JF - 47th American Geophysical Union Fall Meeting AU - Bjoraker, Gordon Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Atmosphere UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651740116?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Ten+Years+Orbiting+Saturn%3A+What+Have+We+Learned+about+Saturn%27s+Atmosphere%3F&rft.au=Bjoraker%2C+Gordon&rft.aulast=Bjoraker&rft.aufirst=Gordon&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - LADEE NMS Observations of Sporadic Water and Carbon Dioxide Signatures in the Lunar Exosphere T2 - 47th American Geophysical Union Fall Meeting AN - 1651740114; 6329487 JF - 47th American Geophysical Union Fall Meeting AU - Benna, Mehdi AU - Mahaffy, Paul AU - Hurley, Dana AU - Stubbs, Timothy AU - Hodges, R AU - Elphic, Richard Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Carbon dioxide UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651740114?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=LADEE+NMS+Observations+of+Sporadic+Water+and+Carbon+Dioxide+Signatures+in+the+Lunar+Exosphere&rft.au=Benna%2C+Mehdi%3BMahaffy%2C+Paul%3BHurley%2C+Dana%3BStubbs%2C+Timothy%3BHodges%2C+R%3BElphic%2C+Richard&rft.aulast=Benna&rft.aufirst=Mehdi&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Airborne Lidar for Ocean-Atmosphere Studies and Assessment of Future Satellite Mission Concepts T2 - 47th American Geophysical Union Fall Meeting AN - 1651740096; 6334373 JF - 47th American Geophysical Union Fall Meeting AU - Hostetler, Chris AU - Hair, Johnathan AU - Hu, Yongxiang AU - Behrenfeld, Michael AU - Cetinic, Ivona AU - Butler, Carolyn AU - Powell, Kathleen AU - Ferrare, Richard AU - Burton, Sharon AU - Cairns, Brian AU - Chowdhary, Jacek AU - Hare, Richard AU - Harper, David AU - Cook, Anthony AU - Berkoff, Timothy AU - Mack, Terry AU - Notari, Anthony AU - Woodell, Glenn Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Ocean-atmosphere system KW - Remote sensing KW - Lidar KW - Satellites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651740096?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Airborne+Lidar+for+Ocean-Atmosphere+Studies+and+Assessment+of+Future+Satellite+Mission+Concepts&rft.au=Hostetler%2C+Chris%3BHair%2C+Johnathan%3BHu%2C+Yongxiang%3BBehrenfeld%2C+Michael%3BCetinic%2C+Ivona%3BButler%2C+Carolyn%3BPowell%2C+Kathleen%3BFerrare%2C+Richard%3BBurton%2C+Sharon%3BCairns%2C+Brian%3BChowdhary%2C+Jacek%3BHare%2C+Richard%3BHarper%2C+David%3BCook%2C+Anthony%3BBerkoff%2C+Timothy%3BMack%2C+Terry%3BNotari%2C+Anthony%3BWoodell%2C+Glenn&rft.aulast=Hostetler&rft.aufirst=Chris&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Comparisons of Airborne HSRL and Modeled Aerosol Profiles T2 - 47th American Geophysical Union Fall Meeting AN - 1651740094; 6329840 JF - 47th American Geophysical Union Fall Meeting AU - Ferrare, Richard Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Aerosols UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651740094?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Comparisons+of+Airborne+HSRL+and+Modeled+Aerosol+Profiles&rft.au=Ferrare%2C+Richard&rft.aulast=Ferrare&rft.aufirst=Richard&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Inter-Comparison of Aquarius and SMOS Calibration and Impact on Sea Surface Salinity Products T2 - 47th American Geophysical Union Fall Meeting AN - 1651740073; 6334130 JF - 47th American Geophysical Union Fall Meeting AU - Dinnat, Emmanuel AU - Boutin, Jacqueline AU - Le Vine, David AU - Yin, Xiaobin Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Salinity effects KW - Surface salinity UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651740073?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Inter-Comparison+of+Aquarius+and+SMOS+Calibration+and+Impact+on+Sea+Surface+Salinity+Products&rft.au=Dinnat%2C+Emmanuel%3BBoutin%2C+Jacqueline%3BLe+Vine%2C+David%3BYin%2C+Xiaobin&rft.aulast=Dinnat&rft.aufirst=Emmanuel&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Space View of the 1991 Gulf War Kuwaiti Oil Fires T2 - 47th American Geophysical Union Fall Meeting AN - 1651740028; 6330126 JF - 47th American Geophysical Union Fall Meeting AU - Torres, Omar AU - Bhartia, Pawan AU - Larko, David Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Oil KW - Fires KW - Gulf War KW - War UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651740028?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Space+View+of+the+1991+Gulf+War+Kuwaiti+Oil+Fires&rft.au=Torres%2C+Omar%3BBhartia%2C+Pawan%3BLarko%2C+David&rft.aulast=Torres&rft.aufirst=Omar&rft.date=2014-12-15&rft.volume=136&rft.issue=&rft.spage=1&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2014.04.001 L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - MODIS Microphysical Regimes for Examining Apparent Aerosol Effects on Clouds and Precipitation T2 - 47th American Geophysical Union Fall Meeting AN - 1651740018; 6329956 JF - 47th American Geophysical Union Fall Meeting AU - Oreopoulos, Lazaros AU - Cho, Nayeong AU - Lee, Dongmin AU - Kato, Seiji AU - Lebsock, Matthew AU - Yuan, Tianle AU - Huffman, George Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Clouds KW - Aerosols KW - Precipitation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651740018?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=MODIS+Microphysical+Regimes+for+Examining+Apparent+Aerosol+Effects+on+Clouds+and+Precipitation&rft.au=Oreopoulos%2C+Lazaros%3BCho%2C+Nayeong%3BLee%2C+Dongmin%3BKato%2C+Seiji%3BLebsock%2C+Matthew%3BYuan%2C+Tianle%3BHuffman%2C+George&rft.aulast=Oreopoulos&rft.aufirst=Lazaros&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - 15 Years of Terra, 14 Years of Application Usage T2 - 47th American Geophysical Union Fall Meeting AN - 1651739973; 6334471 JF - 47th American Geophysical Union Fall Meeting AU - Schmaltz, Jeffrey Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Geophysics KW - Earth sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651739973?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=15+Years+of+Terra%2C+14+Years+of+Application+Usage&rft.au=Schmaltz%2C+Jeffrey&rft.aulast=Schmaltz&rft.aufirst=Jeffrey&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Inland Water Temperature: An Ideal Indicator for the National Climate Assessment T2 - 47th American Geophysical Union Fall Meeting AN - 1651739959; 6334448 JF - 47th American Geophysical Union Fall Meeting AU - Hook, Simon AU - Lenters, John AU - O'Reilly, Catherine AU - Healey, Nathan Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Inland waters KW - Inland water KW - Climate KW - Temperature KW - Water temperature UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651739959?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Inland+Water+Temperature%3A+An+Ideal+Indicator+for+the+National+Climate+Assessment&rft.au=Hook%2C+Simon%3BLenters%2C+John%3BO%27Reilly%2C+Catherine%3BHealey%2C+Nathan&rft.aulast=Hook&rft.aufirst=Simon&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - The Role of Superthermal Electrons in High Latitude Ionospheric Outflows T2 - 47th American Geophysical Union Fall Meeting AN - 1651739924; 6334492 JF - 47th American Geophysical Union Fall Meeting AU - Glocer, Alex AU - Khazanov, George AU - Liemohn, Michael AU - Toth, Gabor AU - Gombosi, Tamas Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Outflow KW - Latitude UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651739924?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=The+Role+of+Superthermal+Electrons+in+High+Latitude+Ionospheric+Outflows&rft.au=Glocer%2C+Alex%3BKhazanov%2C+George%3BLiemohn%2C+Michael%3BToth%2C+Gabor%3BGombosi%2C+Tamas&rft.aulast=Glocer&rft.aufirst=Alex&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Sustained Magnetic Connections from L1: IMAP Science with Planetary Transfers and Hohmann-Parker Resonance Orbits T2 - 47th American Geophysical Union Fall Meeting AN - 1651739923; 6329532 JF - 47th American Geophysical Union Fall Meeting AU - Posner, Arik AU - Droege, Wolfgang AU - Hayes, Jeffrey AU - Heber, Bernd AU - Odstrcil, Dusan AU - Wicks, Robert Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Resonance UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651739923?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Sustained+Magnetic+Connections+from+L1%3A+IMAP+Science+with+Planetary+Transfers+and+Hohmann-Parker+Resonance+Orbits&rft.au=Posner%2C+Arik%3BDroege%2C+Wolfgang%3BHayes%2C+Jeffrey%3BHeber%2C+Bernd%3BOdstrcil%2C+Dusan%3BWicks%2C+Robert&rft.aulast=Posner&rft.aufirst=Arik&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/10.1289%2Fehp.1306640 L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - AgMIP: Next Generation Models and Assessments T2 - 47th American Geophysical Union Fall Meeting AN - 1651739889; 6330198 JF - 47th American Geophysical Union Fall Meeting AU - Rosenzweig, Cynthia Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Models UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651739889?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=AgMIP%3A+Next+Generation+Models+and+Assessments&rft.au=Rosenzweig%2C+Cynthia&rft.aulast=Rosenzweig&rft.aufirst=Cynthia&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - How Much Water is in That Snowpack? Improving Basin-wide Snow Water Equivalent Estimates from the Airborne Snow Observatory T2 - 47th American Geophysical Union Fall Meeting AN - 1651739820; 6329465 JF - 47th American Geophysical Union Fall Meeting AU - Bormann, Kat AU - Painter, Thomas AU - Marks, Danny AU - Kirchner, Peter AU - Winstral, Adam AU - Ramirez, Paul AU - Goodale, Cameron AU - Richardson, Megan AU - Berisford, Daniel Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Snow UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651739820?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=How+Much+Water+is+in+That+Snowpack%3F+Improving+Basin-wide+Snow+Water+Equivalent+Estimates+from+the+Airborne+Snow+Observatory&rft.au=Bormann%2C+Kat%3BPainter%2C+Thomas%3BMarks%2C+Danny%3BKirchner%2C+Peter%3BWinstral%2C+Adam%3BRamirez%2C+Paul%3BGoodale%2C+Cameron%3BRichardson%2C+Megan%3BBerisford%2C+Daniel&rft.aulast=Bormann&rft.aufirst=Kat&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Regional Rates of US Forest Regeneration Measured from Annual Landsat Disturbance History and Ikonos Stereo Imagery T2 - 47th American Geophysical Union Fall Meeting AN - 1651739743; 6330079 JF - 47th American Geophysical Union Fall Meeting AU - Neigh, Christopher AU - Masek, Jeffrey AU - Bourget, Paul AU - Rishmawi, Khaldoun AU - Zhao, Feng AU - Huang, Chengquan AU - Nelson, Ross Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Historical account KW - Landsat KW - Regeneration KW - Forests KW - Disturbance UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651739743?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Regional+Rates+of+US+Forest+Regeneration+Measured+from+Annual+Landsat+Disturbance+History+and+Ikonos+Stereo+Imagery&rft.au=Neigh%2C+Christopher%3BMasek%2C+Jeffrey%3BBourget%2C+Paul%3BRishmawi%2C+Khaldoun%3BZhao%2C+Feng%3BHuang%2C+Chengquan%3BNelson%2C+Ross&rft.aulast=Neigh&rft.aufirst=Christopher&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Impact of Uncertainty of Boundary Conditions on Simulations of the Last Millennium T2 - 47th American Geophysical Union Fall Meeting AN - 1651739732; 6329394 JF - 47th American Geophysical Union Fall Meeting AU - LeGrande, Allegra AU - Tsigaridis, Kostas Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Boundaries KW - Simulation KW - Boundary conditions UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651739732?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Aviation%2C+Space%2C+and+Environmental+Medicine&rft.atitle=Establishment+of+Exposure+Guidelines+for+Lead+in+Spacecraft+Drinking+Water&rft.au=Garcia%2C+Hector+D%3BTsuji%2C+Joyce+S%3BJames%2C+John+T&rft.aulast=Garcia&rft.aufirst=Hector&rft.date=2014-07-01&rft.volume=85&rft.issue=7&rft.spage=715&rft.isbn=&rft.btitle=&rft.title=Aviation%2C+Space%2C+and+Environmental+Medicine&rft.issn=00956562&rft_id=info:doi/10.3357%2FASEM.3853.2014 L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Aggregation Tool to Create Curated Data albums to Support Disaster Recovery and Response T2 - 47th American Geophysical Union Fall Meeting AN - 1651739665; 6330576 JF - 47th American Geophysical Union Fall Meeting AU - Ramachandran, Rahul AU - Kulkarni, Ajinkya AU - Maskey, Manil AU - Li, Xiang AU - Flynn, Shannon Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Data processing KW - Disasters UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651739665?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Aggregation+Tool+to+Create+Curated+Data+albums+to+Support+Disaster+Recovery+and+Response&rft.au=Ramachandran%2C+Rahul%3BKulkarni%2C+Ajinkya%3BMaskey%2C+Manil%3BLi%2C+Xiang%3BFlynn%2C+Shannon&rft.aulast=Ramachandran&rft.aufirst=Rahul&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Modeling the Inner-Magnetosphere Ionosphere with the CIMI Model T2 - 47th American Geophysical Union Fall Meeting AN - 1651739662; 6330660 JF - 47th American Geophysical Union Fall Meeting AU - Fok, Mei-Ching AU - Buzulukova, Natalia AU - Chen, Sheng-Hsien AU - Glocer, Alex AU - Nagai, Tsugunobu AU - Valek, Philip AU - Perez, Joseph Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Ionosphere KW - Models UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651739662?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Modeling+the+Inner-Magnetosphere+Ionosphere+with+the+CIMI+Model&rft.au=Fok%2C+Mei-Ching%3BBuzulukova%2C+Natalia%3BChen%2C+Sheng-Hsien%3BGlocer%2C+Alex%3BNagai%2C+Tsugunobu%3BValek%2C+Philip%3BPerez%2C+Joseph&rft.aulast=Fok&rft.aufirst=Mei-Ching&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Knowledge gaps in organic aerosol global modeling T2 - 47th American Geophysical Union Fall Meeting AN - 1651739648; 6330826 JF - 47th American Geophysical Union Fall Meeting AU - Tsigaridis, Kostas AU - Daskalakis, Nikos AU - Kanakidou, Maria Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Aerosols UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651739648?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Knowledge+gaps+in+organic+aerosol+global+modeling&rft.au=Tsigaridis%2C+Kostas%3BDaskalakis%2C+Nikos%3BKanakidou%2C+Maria&rft.aulast=Tsigaridis&rft.aufirst=Kostas&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Unveiling Titan's Mid-Latitude Surface Regions T2 - 47th American Geophysical Union Fall Meeting AN - 1651739454; 6330493 JF - 47th American Geophysical Union Fall Meeting AU - Solomonidou, Anezina Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Geophysics KW - Earth sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651739454?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Unveiling+Titan%27s+Mid-Latitude+Surface+Regions&rft.au=Solomonidou%2C+Anezina&rft.aulast=Solomonidou&rft.aufirst=Anezina&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - A Multi-Parameter Aerosol Classification Method and its Application to Retrievals from Spaceborne Polarimetry T2 - 47th American Geophysical Union Fall Meeting AN - 1651739343; 6330810 JF - 47th American Geophysical Union Fall Meeting AU - Russell, Philip Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Aerosols KW - Classification UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651739343?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=A+Multi-Parameter+Aerosol+Classification+Method+and+its+Application+to+Retrievals+from+Spaceborne+Polarimetry&rft.au=Russell%2C+Philip&rft.aulast=Russell&rft.aufirst=Philip&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Evaluating ET and Its Components from the CMIP5 Models with New, Global Remote Sensing-Based Estimates T2 - 47th American Geophysical Union Fall Meeting AN - 1651739012; 6330750 JF - 47th American Geophysical Union Fall Meeting AU - Verma, Manish Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Models UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651739012?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Evaluating+ET+and+Its+Components+from+the+CMIP5+Models+with+New%2C+Global+Remote+Sensing-Based+Estimates&rft.au=Verma%2C+Manish&rft.aulast=Verma&rft.aufirst=Manish&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - AeroCOM Biomass Burning Emissions Experiment-Overview T2 - 47th American Geophysical Union Fall Meeting AN - 1651738905; 6330794 JF - 47th American Geophysical Union Fall Meeting AU - Petrenko, Mariya AU - Chin, Mian AU - Kahn, Ralph AU - Val Martin, Maria Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Combustion products KW - Emissions KW - Burning KW - Biomass UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651738905?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=AeroCOM+Biomass+Burning+Emissions+Experiment-Overview&rft.au=Petrenko%2C+Mariya%3BChin%2C+Mian%3BKahn%2C+Ralph%3BVal+Martin%2C+Maria&rft.aulast=Petrenko&rft.aufirst=Mariya&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - A new high spectral resolution lidar technique for direct retrievals of cloud and aerosol extinction T2 - 47th American Geophysical Union Fall Meeting AN - 1651738745; 6328932 JF - 47th American Geophysical Union Fall Meeting AU - Yorks, John AU - McGill, Matthew AU - Hlavka, Dennis Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Clouds KW - Aerosols KW - Extinction KW - Lidar UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651738745?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=A+new+high+spectral+resolution+lidar+technique+for+direct+retrievals+of+cloud+and+aerosol+extinction&rft.au=Yorks%2C+John%3BMcGill%2C+Matthew%3BHlavka%2C+Dennis&rft.aulast=Yorks&rft.aufirst=John&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Accelerated Drying of the Mid-Latitudes from Groundwater Depletion T2 - 47th American Geophysical Union Fall Meeting AN - 1651738742; 6329167 JF - 47th American Geophysical Union Fall Meeting AU - Famiglietti, James Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Ground water KW - Drying UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651738742?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Mineralogist&rft.atitle=XANES+measurements+of+Cr+valence+in+olivine+and+their+applications+to+planetary+basalts&rft.au=Bell%2C+Aaron+S%3BBurger%2C+Paul+V%3BLe%2C+Loan%3BShearer%2C+Charles+K%3BPapike%2C+James+J%3BSutton%2C+Steve+R%3BNewville%2C+Matthew%3BJones%2C+John&rft.aulast=Bell&rft.aufirst=Aaron&rft.date=2014-07-01&rft.volume=99&rft.issue=7&rft.spage=1404&rft.isbn=&rft.btitle=&rft.title=American+Mineralogist&rft.issn=0003004X&rft_id=info:doi/10.2138%2Fam.2014.4646 L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Quantification of Transport Model Error Impacts on CO2 Inversions Using NASA's GEOS-5 GCM T2 - 47th American Geophysical Union Fall Meeting AN - 1651738734; 6328260 JF - 47th American Geophysical Union Fall Meeting AU - Ott, Lesley AU - Pawson, Steven AU - Weir, Brad Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Inversion KW - Carbon dioxide KW - Models UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651738734?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Quantification+of+Transport+Model+Error+Impacts+on+CO2+Inversions+Using+NASA%27s+GEOS-5+GCM&rft.au=Ott%2C+Lesley%3BPawson%2C+Steven%3BWeir%2C+Brad&rft.aulast=Ott&rft.aufirst=Lesley&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Application of Assimilated GRACE Data for Drought Monitoring T2 - 47th American Geophysical Union Fall Meeting AN - 1651738674; 6328586 JF - 47th American Geophysical Union Fall Meeting AU - Rodell, Matthew AU - Li, Bailing AU - Beaudoing, Hiroko AU - Zaitchik, Benjamin AU - Famiglietti, James Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Data processing KW - Droughts UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651738674?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Application+of+Assimilated+GRACE+Data+for+Drought+Monitoring&rft.au=Rodell%2C+Matthew%3BLi%2C+Bailing%3BBeaudoing%2C+Hiroko%3BZaitchik%2C+Benjamin%3BFamiglietti%2C+James&rft.aulast=Rodell&rft.aufirst=Matthew&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Assimilating All-Sky GPM Microwave Imager(GMI) Radiance Data in NASA GEOS-5 System for Global Cloud and Precipitation Analyses T2 - 47th American Geophysical Union Fall Meeting AN - 1651738663; 6328717 JF - 47th American Geophysical Union Fall Meeting AU - Kim, Min-Jeong AU - Jin, Jianjun AU - McCarty, Will AU - Todling, Ricardo AU - Holdaway, Dan AU - Gelaro, Ron Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Clouds KW - Radiance KW - Microwave radiation KW - Data processing KW - Precipitation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651738663?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Assimilating+All-Sky+GPM+Microwave+Imager%28GMI%29+Radiance+Data+in+NASA+GEOS-5+System+for+Global+Cloud+and+Precipitation+Analyses&rft.au=Kim%2C+Min-Jeong%3BJin%2C+Jianjun%3BMcCarty%2C+Will%3BTodling%2C+Ricardo%3BHoldaway%2C+Dan%3BGelaro%2C+Ron&rft.aulast=Kim&rft.aufirst=Min-Jeong&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Aerosol properties derived from airborne sky radiance and direct beam measurements in recent NASA and DoE field campaigns T2 - 47th American Geophysical Union Fall Meeting AN - 1651738602; 6328227 JF - 47th American Geophysical Union Fall Meeting AU - Redemann, Jens AU - Flynn, Connor AU - Shinozuka, Yohei AU - Russell, Philip AU - Kacenelenbogen, Meloe AU - Segal-Rosenhaimer, Michal AU - Livingston, John AU - Schmid, Beat AU - Dunagan, Stephen AU - Johnson, Roy AU - LeBlanc, Samuel AU - Schmidt, Sebastian AU - Pilewskie, Peter AU - Song, Shi Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Radiance KW - Aerosols UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651738602?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Aerosol+properties+derived+from+airborne+sky+radiance+and+direct+beam+measurements+in+recent+NASA+and+DoE+field+campaigns&rft.au=Redemann%2C+Jens%3BFlynn%2C+Connor%3BShinozuka%2C+Yohei%3BRussell%2C+Philip%3BKacenelenbogen%2C+Meloe%3BSegal-Rosenhaimer%2C+Michal%3BLivingston%2C+John%3BSchmid%2C+Beat%3BDunagan%2C+Stephen%3BJohnson%2C+Roy%3BLeBlanc%2C+Samuel%3BSchmidt%2C+Sebastian%3BPilewskie%2C+Peter%3BSong%2C+Shi&rft.aulast=Redemann&rft.aufirst=Jens&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - An Analysis of Far-Infrared Radiances Obtained By the First Instrument at Table Mountain through the Use of Radiative Transfer Calculations T2 - 47th American Geophysical Union Fall Meeting AN - 1651738573; 6328937 JF - 47th American Geophysical Union Fall Meeting AU - Kratz, David AU - Mlynczak, Martin AU - Cageao, Richard AU - Johnson, David AU - Mast, Jeffrey Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Mountains KW - Radiative transfer UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651738573?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=An+Analysis+of+Far-Infrared+Radiances+Obtained+By+the+First+Instrument+at+Table+Mountain+through+the+Use+of+Radiative+Transfer+Calculations&rft.au=Kratz%2C+David%3BMlynczak%2C+Martin%3BCageao%2C+Richard%3BJohnson%2C+David%3BMast%2C+Jeffrey&rft.aulast=Kratz&rft.aufirst=David&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Interactions Between Arctic Sea Ice, Clouds, and the Circulation T2 - 47th American Geophysical Union Fall Meeting AN - 1651738550; 6328676 JF - 47th American Geophysical Union Fall Meeting AU - Taylor, Patrick AU - Kato, Seiji AU - Xu, Kuan-Man AU - Baker, Noel Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Clouds KW - Sea ice KW - Polar environments KW - Arctic UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651738550?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Interactions+Between+Arctic+Sea+Ice%2C+Clouds%2C+and+the+Circulation&rft.au=Taylor%2C+Patrick%3BKato%2C+Seiji%3BXu%2C+Kuan-Man%3BBaker%2C+Noel&rft.aulast=Taylor&rft.aufirst=Patrick&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - AgMIP: New Results from Sub-Saharan Africa and South Asia Regional Integrated Assessments T2 - 47th American Geophysical Union Fall Meeting AN - 1651738532; 6328681 JF - 47th American Geophysical Union Fall Meeting AU - Rosenzweig, Cynthia Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Africa KW - Geophysics KW - Asia KW - Earth sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651738532?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=AgMIP%3A+New+Results+from+Sub-Saharan+Africa+and+South+Asia+Regional+Integrated+Assessments&rft.au=Rosenzweig%2C+Cynthia&rft.aulast=Rosenzweig&rft.aufirst=Cynthia&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Diel Metagenomics and Metatranscriptomics of Elkhorn Slough Hypersaline Microbial Mat T2 - 47th American Geophysical Union Fall Meeting AN - 1651738459; 6329044 JF - 47th American Geophysical Union Fall Meeting AU - Lee, Jackson AU - Detweiler, Angela AU - Everroad, R AU - Bebout, Leslie AU - Weber, Peter AU - Pett-Ridge, Jennifer AU - Bebout, Brad Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - USA, California, Elkhorn Slough KW - Geophysics KW - Earth sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651738459?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Diel+Metagenomics+and+Metatranscriptomics+of+Elkhorn+Slough+Hypersaline+Microbial+Mat&rft.au=Lee%2C+Jackson%3BDetweiler%2C+Angela%3BEverroad%2C+R%3BBebout%2C+Leslie%3BWeber%2C+Peter%3BPett-Ridge%2C+Jennifer%3BBebout%2C+Brad&rft.aulast=Lee&rft.aufirst=Jackson&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - AERONET Version 3 processing T2 - 47th American Geophysical Union Fall Meeting AN - 1651738389; 6328225 JF - 47th American Geophysical Union Fall Meeting AU - Holben, Brent AU - Slutsker, Ilya AU - Giles, David AU - Eck, Thomas AU - Smirnov, Alexander AU - Sinyuk, Alexander AU - Schafer, Joel AU - Rodriguez, Jon Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Geophysics KW - Earth sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651738389?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=AERONET+Version+3+processing&rft.au=Holben%2C+Brent%3BSlutsker%2C+Ilya%3BGiles%2C+David%3BEck%2C+Thomas%3BSmirnov%2C+Alexander%3BSinyuk%2C+Alexander%3BSchafer%2C+Joel%3BRodriguez%2C+Jon&rft.aulast=Holben&rft.aufirst=Brent&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Resource Prospector: A lunar volatiles prospecting and ISRU demonstration mission T2 - 47th American Geophysical Union Fall Meeting AN - 1651738339; 6328468 JF - 47th American Geophysical Union Fall Meeting AU - Colaprete, Anthony AU - Elphic, Richard AU - Andrews, Daniel AU - Trimble, Jay AU - Sanders, Jerry AU - Quinn, Jackie Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Volatiles UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651738339?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Resource+Prospector%3A+A+lunar+volatiles+prospecting+and+ISRU+demonstration+mission&rft.au=Colaprete%2C+Anthony%3BElphic%2C+Richard%3BAndrews%2C+Daniel%3BTrimble%2C+Jay%3BSanders%2C+Jerry%3BQuinn%2C+Jackie&rft.aulast=Colaprete&rft.aufirst=Anthony&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Climate Change Accuracy: Requirements and Economic Value T2 - 47th American Geophysical Union Fall Meeting AN - 1651738298; 6328934 JF - 47th American Geophysical Union Fall Meeting AU - Wielicki, Bruce AU - Cooke, Roger AU - Mlynczak, Martin AU - Lukashin, Costantine AU - Thome, Kurtis AU - Baize, Rosemary Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Climatic changes KW - Economics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651738298?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Climate+Change+Accuracy%3A+Requirements+and+Economic+Value&rft.au=Wielicki%2C+Bruce%3BCooke%2C+Roger%3BMlynczak%2C+Martin%3BLukashin%2C+Costantine%3BThome%2C+Kurtis%3BBaize%2C+Rosemary&rft.aulast=Wielicki&rft.aufirst=Bruce&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - An Overview of Ozone and Precursor Temporal and Spatial Variability in DISCOVER-AQ Study Regions T2 - 47th American Geophysical Union Fall Meeting AN - 1651738275; 6328972 JF - 47th American Geophysical Union Fall Meeting AU - Pickering, Kenneth AU - Follette-Cook, Melanie AU - Loughner, Christopher AU - Flynn, Clare AU - Crawford, James AU - Clark, Richard AU - Fried, Alan AU - Herman, Jay AU - Janz, Scott AU - Lamsal, Lok AU - Silverman, Morgan AU - Zweers, Deborah AU - Szykman, James AU - Weinheimer, Andrew Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Spatial variations KW - Reviews KW - Ozone UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651738275?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=An+Overview+of+Ozone+and+Precursor+Temporal+and+Spatial+Variability+in+DISCOVER-AQ+Study+Regions&rft.au=Pickering%2C+Kenneth%3BFollette-Cook%2C+Melanie%3BLoughner%2C+Christopher%3BFlynn%2C+Clare%3BCrawford%2C+James%3BClark%2C+Richard%3BFried%2C+Alan%3BHerman%2C+Jay%3BJanz%2C+Scott%3BLamsal%2C+Lok%3BSilverman%2C+Morgan%3BZweers%2C+Deborah%3BSzykman%2C+James%3BWeinheimer%2C+Andrew&rft.aulast=Pickering&rft.aufirst=Kenneth&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Hurricane and Severe Storm Sentinel (HS3): Mission Summary and Initial Result T2 - 47th American Geophysical Union Fall Meeting AN - 1651738270; 6328252 JF - 47th American Geophysical Union Fall Meeting AU - Braun, Scott AU - Newman, Paul Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Hurricanes KW - Storms UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651738270?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Hurricane+and+Severe+Storm+Sentinel+%28HS3%29%3A+Mission+Summary+and+Initial+Result&rft.au=Braun%2C+Scott%3BNewman%2C+Paul&rft.aulast=Braun&rft.aufirst=Scott&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Overview of the Progression of NASA's CLARREO Mission T2 - 47th American Geophysical Union Fall Meeting AN - 1651738269; 6328935 JF - 47th American Geophysical Union Fall Meeting AU - Baize, Rosemary AU - Wielicki, Bruce AU - Young, David AU - Lukashin, Costantine Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651738269?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Overview+of+the+Progression+of+NASA%27s+CLARREO+Mission&rft.au=Baize%2C+Rosemary%3BWielicki%2C+Bruce%3BYoung%2C+David%3BLukashin%2C+Costantine&rft.aulast=Baize&rft.aufirst=Rosemary&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - A New Satellite Aerosol Retrieval Using High Spectral Resolution Oxygen A-Band Measurements T2 - 47th American Geophysical Union Fall Meeting AN - 1651738267; 6328222 JF - 47th American Geophysical Union Fall Meeting AU - Winker, David AU - Zhai, Pengwang Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Oxygen KW - Aerosols KW - Remote sensing KW - Satellites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651738267?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=A+New+Satellite+Aerosol+Retrieval+Using+High+Spectral+Resolution+Oxygen+A-Band+Measurements&rft.au=Winker%2C+David%3BZhai%2C+Pengwang&rft.aulast=Winker&rft.aufirst=David&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - A Simplified Approach to Cloud Masking with VIIRS in the S-NPP / JPSS Era T2 - 47th American Geophysical Union Fall Meeting AN - 1651738263; 6328747 JF - 47th American Geophysical Union Fall Meeting AU - Jedlovec, Gary AU - LaFontaine, Frank Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Clouds UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651738263?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=A+Simplified+Approach+to+Cloud+Masking+with+VIIRS+in+the+S-NPP+%2F+JPSS+Era&rft.au=Jedlovec%2C+Gary%3BLaFontaine%2C+Frank&rft.aulast=Jedlovec&rft.aufirst=Gary&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Initial Results from Observations Made by the Research Scanning Polarimeter (RSP) During the Ship-Aircraft Bio-Optical Research (SABOR) Experiment T2 - 47th American Geophysical Union Fall Meeting AN - 1651738240; 6328565 JF - 47th American Geophysical Union Fall Meeting AU - Cairns, Brian AU - Chowdhary, Jacek AU - Hostetler, Chris AU - Hair, Johnathan AU - Hu, Yongxiang AU - Butler, Carolyn AU - Powell, Kathleen AU - Ferrare, Richard AU - Burton, Sharon AU - Gilerson, Alexander AU - Cetinic, Ivona Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Scanning UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651738240?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Initial+Results+from+Observations+Made+by+the+Research+Scanning+Polarimeter+%28RSP%29+During+the+Ship-Aircraft+Bio-Optical+Research+%28SABOR%29+Experiment&rft.au=Cairns%2C+Brian%3BChowdhary%2C+Jacek%3BHostetler%2C+Chris%3BHair%2C+Johnathan%3BHu%2C+Yongxiang%3BButler%2C+Carolyn%3BPowell%2C+Kathleen%3BFerrare%2C+Richard%3BBurton%2C+Sharon%3BGilerson%2C+Alexander%3BCetinic%2C+Ivona&rft.aulast=Cairns&rft.aufirst=Brian&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Evolving Synergy between UV and VIS instruments for Aerosol Remote Sensing- Implications for Suomi NPP and Future Instruments T2 - 47th American Geophysical Union Fall Meeting AN - 1651738147; 6328415 JF - 47th American Geophysical Union Fall Meeting AU - Bhartia, Pawan AU - Torres, Omar Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Aerosols KW - U.V. radiation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651738147?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Evolving+Synergy+between+UV+and+VIS+instruments+for+Aerosol+Remote+Sensing-+Implications+for+Suomi+NPP+and+Future+Instruments&rft.au=Bhartia%2C+Pawan%3BTorres%2C+Omar&rft.aulast=Bhartia&rft.aufirst=Pawan&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=UPI+Space+Daily&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Building Lasting Impact: Ten Years of the Earth to Sky Interagency Partnership T2 - 47th American Geophysical Union Fall Meeting AN - 1651738140; 6328997 JF - 47th American Geophysical Union Fall Meeting AU - Davis, Anita AU - Lacome, Becky AU - Merrick, Bart AU - Morris, John AU - Paglierani, Ruth AU - Spakoff, Sandy Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Geophysics KW - Earth sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651738140?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Building+Lasting+Impact%3A+Ten+Years+of+the+Earth+to+Sky+Interagency+Partnership&rft.au=Davis%2C+Anita%3BLacome%2C+Becky%3BMerrick%2C+Bart%3BMorris%2C+John%3BPaglierani%2C+Ruth%3BSpakoff%2C+Sandy&rft.aulast=Davis&rft.aufirst=Anita&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Improving the Interoperability and Usability of NASA Earth Observation Data T2 - 47th American Geophysical Union Fall Meeting AN - 1651738087; 6329775 JF - 47th American Geophysical Union Fall Meeting AU - Walter, Jeff AU - Berrick, Stephen AU - Murphy, Kevin AU - Mitchell, Andrew AU - Tilmes, Curt Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Data processing UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651738087?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Improving+the+Interoperability+and+Usability+of+NASA+Earth+Observation+Data&rft.au=Walter%2C+Jeff%3BBerrick%2C+Stephen%3BMurphy%2C+Kevin%3BMitchell%2C+Andrew%3BTilmes%2C+Curt&rft.aulast=Walter&rft.aufirst=Jeff&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - NASA and the National Climate Assessment: Promoting awareness of NASA Earth science T2 - 47th American Geophysical Union Fall Meeting AN - 1651738085; 6329745 JF - 47th American Geophysical Union Fall Meeting AU - Leidner, Allison Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Climate KW - Earth sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651738085?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Research&rft.atitle=Debates-the+future+of+hydrological+sciences%3B+a+%28common%29+path+forward%3B+using+models+and+data+to+learn%3B+a+systems+theoretic+perspective+on+the+future+of+hydrological+science&rft.au=Gupta%2C+Hoshin+V%3BNearing%2C+Grey+S&rft.aulast=Gupta&rft.aufirst=Hoshin&rft.date=2014-06-01&rft.volume=50&rft.issue=6&rft.spage=5351&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/10.1002%2F2013WR015096 L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Investigating Extreme Heat and Humidity in the Northeast United States from a Joint Hazard Perspective T2 - 47th American Geophysical Union Fall Meeting AN - 1651738029; 6334365 JF - 47th American Geophysical Union Fall Meeting AU - Horton, Radley AU - Coffel, Ethan AU - Kushnir, Yochanan Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Hazards KW - USA KW - Heat KW - Humidity KW - Joints UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651738029?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Investigating+Extreme+Heat+and+Humidity+in+the+Northeast+United+States+from+a+Joint+Hazard+Perspective&rft.au=Horton%2C+Radley%3BCoffel%2C+Ethan%3BKushnir%2C+Yochanan&rft.aulast=Horton&rft.aufirst=Radley&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - The Sun's Meridional Flow and Its Role in Magnetic Flux Transport and the Sunspot Cycle T2 - 47th American Geophysical Union Fall Meeting AN - 1651737859; 6334479 JF - 47th American Geophysical Union Fall Meeting AU - Hathaway, David AU - Upton, Lisa Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Sun KW - Solar activity UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651737859?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=The+Sun%27s+Meridional+Flow+and+Its+Role+in+Magnetic+Flux+Transport+and+the+Sunspot+Cycle&rft.au=Hathaway%2C+David%3BUpton%2C+Lisa&rft.aulast=Hathaway&rft.aufirst=David&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Maintaining the Accuracy of a Sea Surface Height Climate Data Record from Multi-mission Altimeter Data T2 - 47th American Geophysical Union Fall Meeting AN - 1651737856; 6334931 JF - 47th American Geophysical Union Fall Meeting AU - Beckley, Brian AU - Ray, Richard AU - Lemoine, Frank AU - Zelensky, Nikita AU - Yang, Xu AU - Mitchum, Gary AU - Ricko, Martina AU - Desai, Shailen AU - Brown, Shannon Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Data processing KW - Climate KW - Altimeters UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651737856?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Maintaining+the+Accuracy+of+a+Sea+Surface+Height+Climate+Data+Record+from+Multi-mission+Altimeter+Data&rft.au=Beckley%2C+Brian%3BRay%2C+Richard%3BLemoine%2C+Frank%3BZelensky%2C+Nikita%3BYang%2C+Xu%3BMitchum%2C+Gary%3BRicko%2C+Martina%3BDesai%2C+Shailen%3BBrown%2C+Shannon&rft.aulast=Beckley&rft.aufirst=Brian&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Deep Ocean Contribution to Sea Level and Energy Budget Not Detectable over the Past Decade T2 - 47th American Geophysical Union Fall Meeting AN - 1651737736; 6329585 JF - 47th American Geophysical Union Fall Meeting AU - Llovel, William AU - Willis, Josh AU - Landerer, Felix AU - Fukumori, Ichiro Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Sea level KW - Oceans KW - Energy budget UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651737736?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Deep+Ocean+Contribution+to+Sea+Level+and+Energy+Budget+Not+Detectable+over+the+Past+Decade&rft.au=Llovel%2C+William%3BWillis%2C+Josh%3BLanderer%2C+Felix%3BFukumori%2C+Ichiro&rft.aulast=Llovel&rft.aufirst=William&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Searching for Earth-like planets in this solar system and beyond T2 - 47th American Geophysical Union Fall Meeting AN - 1651737732; 6329807 JF - 47th American Geophysical Union Fall Meeting AU - Stofan, Ellen Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Geophysics KW - Earth sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651737732?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Searching+for+Earth-like+planets+in+this+solar+system+and+beyond&rft.au=Stofan%2C+Ellen&rft.aulast=Stofan&rft.aufirst=Ellen&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Geology Before Pluto: Pre-encounter Considerations T2 - 47th American Geophysical Union Fall Meeting AN - 1651737698; 6329890 JF - 47th American Geophysical Union Fall Meeting AU - Moore, Jeffrey Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Geology KW - Pluto UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651737698?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Geology+Before+Pluto%3A+Pre-encounter+Considerations&rft.au=Moore%2C+Jeffrey&rft.aulast=Moore&rft.aufirst=Jeffrey&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Intercalibration of AMSR2 sea ice concentration estimates using limited AMSR-E information T2 - 47th American Geophysical Union Fall Meeting AN - 1651737676; 6334133 JF - 47th American Geophysical Union Fall Meeting AU - Meier, Walter AU - Cavalieri, Donald AU - Ivanoff, Alvaro Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Sea ice KW - Intercalibration UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651737676?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Research&rft.atitle=What+does+CloudSat+reveal+about+global+land+precipitation+detection+by+other+spaceborne+sensors%3F&rft.au=Behrangi%2C+Ali%3BTian%2C+Yudong%3BLambrigtsen%2C+Bjorn+H%3BStephens%2C+Graeme+L&rft.aulast=Behrangi&rft.aufirst=Ali&rft.date=2014-06-01&rft.volume=50&rft.issue=6&rft.spage=4893&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/10.1002%2F2013WR014566 L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - UAVSAR and TerraSAR-X Based InSAR Detection of Localized Subsidence in the New Orleans Area T2 - 47th American Geophysical Union Fall Meeting AN - 1651737609; 6329600 JF - 47th American Geophysical Union Fall Meeting AU - Blom, Ronald AU - An, Karen AU - Jones, Cathleen AU - Latini, Daniele Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Subsidence KW - USA, Louisiana, New Orleans UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651737609?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=UAVSAR+and+TerraSAR-X+Based+InSAR+Detection+of+Localized+Subsidence+in+the+New+Orleans+Area&rft.au=Blom%2C+Ronald%3BAn%2C+Karen%3BJones%2C+Cathleen%3BLatini%2C+Daniele&rft.aulast=Blom&rft.aufirst=Ronald&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Measures Earth System Data Records (ESDR) of Ice Motion in Antarctica: Status, Impact and Future Products T2 - 47th American Geophysical Union Fall Meeting AN - 1651737594; 6334929 JF - 47th American Geophysical Union Fall Meeting AU - Rignot, Eric AU - Scheuchl, Bernd AU - Mouginot, Jeremie Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Ice KW - Data processing KW - Antarctica UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651737594?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Measures+Earth+System+Data+Records+%28ESDR%29+of+Ice+Motion+in+Antarctica%3A+Status%2C+Impact+and+Future+Products&rft.au=Rignot%2C+Eric%3BScheuchl%2C+Bernd%3BMouginot%2C+Jeremie&rft.aulast=Rignot&rft.aufirst=Eric&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Observations of Radiative Cooling By Nitric Oxide and Carbon Dioxide in the E and F Regions: Implications for Space Weather and Space Climate T2 - 47th American Geophysical Union Fall Meeting AN - 1651737576; 6329506 JF - 47th American Geophysical Union Fall Meeting AU - Mlynczak, Martin AU - Hunt, Linda AU - Russell, James Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Weather KW - Climate KW - Nitric oxide KW - Carbon dioxide UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651737576?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Theoretical+and+Computational+Fluid+Dynamics&rft.atitle=Status+of+turbulence+modeling+for+hypersonic+propulsion+flowpaths&rft.au=Georgiadis%2C+Nicholas+J%3BYoder%2C+Dennis+A%3BVyas%2C+Manan+A%3BEngblom%2C+William+A&rft.aulast=Georgiadis&rft.aufirst=Nicholas&rft.date=2014-06-01&rft.volume=28&rft.issue=3&rft.spage=295&rft.isbn=&rft.btitle=&rft.title=Theoretical+and+Computational+Fluid+Dynamics&rft.issn=09354964&rft_id=info:doi/10.1007%2Fs00162-013-0316-z L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Evaluation of CERES surface irradiance products T2 - 47th American Geophysical Union Fall Meeting AN - 1651737484; 6334568 JF - 47th American Geophysical Union Fall Meeting AU - Kato, Seiji AU - Loeb, Norman AU - Rose, Fred AU - Rutan, David AU - Doelling, David AU - Radkevich, Alexander AU - Ham, Seung-Hee Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Irradiance UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651737484?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Evaluation+of+CERES+surface+irradiance+products&rft.au=Kato%2C+Seiji%3BLoeb%2C+Norman%3BRose%2C+Fred%3BRutan%2C+David%3BDoelling%2C+David%3BRadkevich%2C+Alexander%3BHam%2C+Seung-Hee&rft.aulast=Kato&rft.aufirst=Seiji&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Terra - 15 Years as the Earth Observing System Flagship Observatory T2 - 47th American Geophysical Union Fall Meeting AN - 1651737400; 6334464 JF - 47th American Geophysical Union Fall Meeting AU - Thome, Kurtis Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Geophysics KW - Earth sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651737400?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Terra+-+15+Years+as+the+Earth+Observing+System+Flagship+Observatory&rft.au=Thome%2C+Kurtis&rft.aulast=Thome&rft.aufirst=Kurtis&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - NASA COAST and OCEANIA Airborne Missions Support Ecosystem and Water Quality Research in the Coastal Zone T2 - 47th American Geophysical Union Fall Meeting AN - 1651737359; 6334372 JF - 47th American Geophysical Union Fall Meeting AU - Guild, Liane AU - Kudela, Raphael AU - Hooker, Stanford AU - Morrow, John AU - Russell, Philip AU - Palacios, Sherry AU - Livingston, John AU - Negrey, Kendra AU - Torres-Perez, Juan AU - Broughton, Jennifer Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Coastal zone KW - Oceania KW - Water quality UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651737359?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=NASA+COAST+and+OCEANIA+Airborne+Missions+Support+Ecosystem+and+Water+Quality+Research+in+the+Coastal+Zone&rft.au=Guild%2C+Liane%3BKudela%2C+Raphael%3BHooker%2C+Stanford%3BMorrow%2C+John%3BRussell%2C+Philip%3BPalacios%2C+Sherry%3BLivingston%2C+John%3BNegrey%2C+Kendra%3BTorres-Perez%2C+Juan%3BBroughton%2C+Jennifer&rft.aulast=Guild&rft.aufirst=Liane&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Trace gas constraints on vertical transport in models: a case study of Indonesian biomass burning emissions in 2006 T2 - 47th American Geophysical Union Fall Meeting AN - 1651737338; 6334555 JF - 47th American Geophysical Union Fall Meeting AU - Field, Robert AU - Luo, Ming AU - Worden, John AU - Kim, Daehyun AU - Del Genio, Anthony AU - Voulgarakis, Apostolos Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Case studies KW - Combustion products KW - Emissions KW - Burning KW - Biomass KW - Vertical advection KW - Models UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651737338?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Trace+gas+constraints+on+vertical+transport+in+models%3A+a+case+study+of+Indonesian+biomass+burning+emissions+in+2006&rft.au=Field%2C+Robert%3BLuo%2C+Ming%3BWorden%2C+John%3BKim%2C+Daehyun%3BDel+Genio%2C+Anthony%3BVoulgarakis%2C+Apostolos&rft.aulast=Field&rft.aufirst=Robert&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Spatial Inference for Distributed Remote Sensing Data T2 - 47th American Geophysical Union Fall Meeting AN - 1651737275; 6329351 JF - 47th American Geophysical Union Fall Meeting AU - Braverman, Amy AU - Katzfuss, Matthias AU - Nguyen, Hai Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Data processing KW - Ecological distribution KW - Remote sensing UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651737275?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Spatial+Inference+for+Distributed+Remote+Sensing+Data&rft.au=Braverman%2C+Amy%3BKatzfuss%2C+Matthias%3BNguyen%2C+Hai&rft.aulast=Braverman&rft.aufirst=Amy&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - The Mercury Gravity Field after the MESSENGER Low-Altitude Gravity Campaign T2 - 47th American Geophysical Union Fall Meeting AN - 1651737198; 6329635 JF - 47th American Geophysical Union Fall Meeting AU - Mazarico, Erwan AU - Genova, Antonio AU - Goossens, Sander AU - Lemoine, Frank AU - Neumann, Gregory AU - Smith, David AU - Zuber, Maria AU - Solomon, Sean Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Gravity field KW - Gravity KW - Mercury UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651737198?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=The+Mercury+Gravity+Field+after+the+MESSENGER+Low-Altitude+Gravity+Campaign&rft.au=Mazarico%2C+Erwan%3BGenova%2C+Antonio%3BGoossens%2C+Sander%3BLemoine%2C+Frank%3BNeumann%2C+Gregory%3BSmith%2C+David%3BZuber%2C+Maria%3BSolomon%2C+Sean&rft.aulast=Mazarico&rft.aufirst=Erwan&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Examining spatial and temporal variability in snow water equivalent using a 27 year reanalysis: Kern River watershed, Sierra Nevada T2 - 47th American Geophysical Union Fall Meeting AN - 1651737091; 6334726 JF - 47th American Geophysical Union Fall Meeting AU - Girotto, Manuela AU - Cortes, Gonzalo AU - Margulis, Steven AU - Durand, Michael Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Rivers KW - Spatial distribution KW - Temporal variations KW - Snow KW - Watersheds UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651737091?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Examining+spatial+and+temporal+variability+in+snow+water+equivalent+using+a+27+year+reanalysis%3A+Kern+River+watershed%2C+Sierra+Nevada&rft.au=Girotto%2C+Manuela%3BCortes%2C+Gonzalo%3BMargulis%2C+Steven%3BDurand%2C+Michael&rft.aulast=Girotto&rft.aufirst=Manuela&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Evolving Capabilities and Expectations for the GPCP Precipitation Products T2 - 47th American Geophysical Union Fall Meeting AN - 1651737077; 6334928 JF - 47th American Geophysical Union Fall Meeting AU - Huffman, George AU - Adler, Robert AU - Bolvin, David AU - Nelkin, Eric Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Precipitation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651737077?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Evolving+Capabilities+and+Expectations+for+the+GPCP+Precipitation+Products&rft.au=Huffman%2C+George%3BAdler%2C+Robert%3BBolvin%2C+David%3BNelkin%2C+Eric&rft.aulast=Huffman&rft.aufirst=George&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Remote sensing of water quality and contaminants in the California Bay-Delta T2 - 47th American Geophysical Union Fall Meeting AN - 1651736966; 6334918 JF - 47th American Geophysical Union Fall Meeting AU - Fichot, Cedric AU - Downing, Bryan AU - Windham-Myers, Lisamarie AU - Marvin-DiPasquale, Mark AU - Bergamaschi, Brian AU - Thompson, David AU - Gierach, Michelle Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Remote sensing KW - USA, California KW - Contaminants KW - Water quality UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651736966?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Remote+sensing+of+water+quality+and+contaminants+in+the+California+Bay-Delta&rft.au=Fichot%2C+Cedric%3BDowning%2C+Bryan%3BWindham-Myers%2C+Lisamarie%3BMarvin-DiPasquale%2C+Mark%3BBergamaschi%2C+Brian%3BThompson%2C+David%3BGierach%2C+Michelle&rft.aulast=Fichot&rft.aufirst=Cedric&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Global Assimilation of SMOS Brightness Temperatures to Estimate Soil Moisture and Temperature T2 - 47th American Geophysical Union Fall Meeting AN - 1651736928; 6329315 JF - 47th American Geophysical Union Fall Meeting AU - De Lannoy, Gabrielle AU - Reichle, Rolf Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Brightness KW - Temperature KW - Soil temperature KW - Soil moisture KW - Surface radiation temperature UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651736928?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Global+Assimilation+of+SMOS+Brightness+Temperatures+to+Estimate+Soil+Moisture+and+Temperature&rft.au=De+Lannoy%2C+Gabrielle%3BReichle%2C+Rolf&rft.aulast=De+Lannoy&rft.aufirst=Gabrielle&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - How much complexity is needed in global model organic aerosol simulations? T2 - 47th American Geophysical Union Fall Meeting AN - 1651736861; 6329835 JF - 47th American Geophysical Union Fall Meeting AU - Tsigaridis, Kostas AU - Daskalakis, Nikos AU - Kanakidou, Maria Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Aerosols KW - Simulation KW - Models UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651736861?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=How+much+complexity+is+needed+in+global+model+organic+aerosol+simulations%3F&rft.au=Tsigaridis%2C+Kostas%3BDaskalakis%2C+Nikos%3BKanakidou%2C+Maria&rft.aulast=Tsigaridis&rft.aufirst=Kostas&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Consequences of Kinetic Effects in Nonsymmetric Reconnection Configurations on Large-Scale Dynamical Processes in Magnetosphere and Solar Plasma T2 - 47th American Geophysical Union Fall Meeting AN - 1651736843; 6334498 JF - 47th American Geophysical Union Fall Meeting AU - Kuznetsova, Maria AU - Hesse, Michael AU - Aunai, Nicolas AU - Wendel, Deirdre AU - Rastaetter, Lutz AU - Glocer, Alex AU - Toth, Gabor Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Kinetics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651736843?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Consequences+of+Kinetic+Effects+in+Nonsymmetric+Reconnection+Configurations+on+Large-Scale+Dynamical+Processes+in+Magnetosphere+and+Solar+Plasma&rft.au=Kuznetsova%2C+Maria%3BHesse%2C+Michael%3BAunai%2C+Nicolas%3BWendel%2C+Deirdre%3BRastaetter%2C+Lutz%3BGlocer%2C+Alex%3BToth%2C+Gabor&rft.aulast=Kuznetsova&rft.aufirst=Maria&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - O+ Ionospheric Outflows in Connection with Magnetospheric Processes T2 - 47th American Geophysical Union Fall Meeting AN - 1651736798; 6334790 JF - 47th American Geophysical Union Fall Meeting AU - Khazanov, George Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Outflow UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651736798?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=O%2B+Ionospheric+Outflows+in+Connection+with+Magnetospheric+Processes&rft.au=Khazanov%2C+George&rft.aulast=Khazanov&rft.aufirst=George&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - On the Microphysics Equilibrium of Tropical Convection Derived From Long-Term TRMM Radiance-Based Statistics T2 - 47th American Geophysical Union Fall Meeting AN - 1651736617; 6328968 JF - 47th American Geophysical Union Fall Meeting AU - Matsui, Toshihisa AU - Tao, Wei-Kuo Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Convection KW - Statistics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651736617?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=On+the+Microphysics+Equilibrium+of+Tropical+Convection+Derived+From+Long-Term+TRMM+Radiance-Based+Statistics&rft.au=Matsui%2C+Toshihisa%3BTao%2C+Wei-Kuo&rft.aulast=Matsui&rft.aufirst=Toshihisa&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Effects of absorbing aerosols on intraseasonal variability of the Indian Monsoon T2 - 47th American Geophysical Union Fall Meeting AN - 1651736594; 6328884 JF - 47th American Geophysical Union Fall Meeting AU - Lau, William AU - Kim, Kyu-Myong AU - Tao, Wei-Kuo AU - Shi, Jainn AU - Chin, Mian Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Aerosols KW - Monsoons UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651736594?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Effects+of+absorbing+aerosols+on+intraseasonal+variability+of+the+Indian+Monsoon&rft.au=Lau%2C+William%3BKim%2C+Kyu-Myong%3BTao%2C+Wei-Kuo%3BShi%2C+Jainn%3BChin%2C+Mian&rft.aulast=Lau&rft.aufirst=William&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Climate Feedback Studies Using 4D Distributions of Clouds and Aerosols T2 - 47th American Geophysical Union Fall Meeting AN - 1651736554; 6328938 JF - 47th American Geophysical Union Fall Meeting AU - Hu, Yongxiang Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Clouds KW - Aerosols KW - Climate KW - Feedback UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651736554?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Climate+Feedback+Studies+Using+4D+Distributions+of+Clouds+and+Aerosols&rft.au=Hu%2C+Yongxiang&rft.aulast=Hu&rft.aufirst=Yongxiang&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - First results from the Mojave Volatiles Prospector (MVP) Field Campaign, a Lunar Polar Rover Mission Analog T2 - 47th American Geophysical Union Fall Meeting AN - 1651736496; 6328469 JF - 47th American Geophysical Union Fall Meeting AU - Heldmann, Jennifer AU - Colaprete, Anthony AU - Cook, Amanda AU - Deans, Matthew AU - Elphic, Richard AU - Lim, Darlene AU - Skok, John Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Volatiles KW - Analogs UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651736496?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=First+results+from+the+Mojave+Volatiles+Prospector+%28MVP%29+Field+Campaign%2C+a+Lunar+Polar+Rover+Mission+Analog&rft.au=Heldmann%2C+Jennifer%3BColaprete%2C+Anthony%3BCook%2C+Amanda%3BDeans%2C+Matthew%3BElphic%2C+Richard%3BLim%2C+Darlene%3BSkok%2C+John&rft.aulast=Heldmann&rft.aufirst=Jennifer&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Understanding the absorption Angstrom exponent provided in the AERONET database T2 - 47th American Geophysical Union Fall Meeting AN - 1651736495; 6328226 JF - 47th American Geophysical Union Fall Meeting AU - Schuster, Gregory AU - Dubovik, Oleg AU - Arola, Antti Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Databases KW - Absorption UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651736495?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Understanding+the+absorption+Angstrom+exponent+provided+in+the+AERONET+database&rft.au=Schuster%2C+Gregory%3BDubovik%2C+Oleg%3BArola%2C+Antti&rft.aulast=Schuster&rft.aufirst=Gregory&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - Studying Microbial Mat Functioning Amidst "Unexpected Diversity": Methodological Approaches and Initial Results from Metatranscriptomes of Mats Over Diel cycles, iTags from Long Term Manipulations, and Biogeochemical Cycling in Simplified Microbial Mats Constructed from Cultures T2 - 47th American Geophysical Union Fall Meeting AN - 1651736488; 6329043 JF - 47th American Geophysical Union Fall Meeting AU - Bebout, Brad AU - Bebout, Leslie AU - Detweiler, Angela AU - Everroad, R AU - Lee, Jackson AU - Pett-Ridge, Jennifer AU - Weber, Peter Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Biogeochemistry KW - Species diversity KW - Microbial mats UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651736488?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=Studying+Microbial+Mat+Functioning+Amidst+%22Unexpected+Diversity%22%3A+Methodological+Approaches+and+Initial+Results+from+Metatranscriptomes+of+Mats+Over+Diel+cycles%2C+iTags+from+Long+Term+Manipulations%2C+and+Biogeochemical+Cycling+in+Simplified+Microbial+Mats+Constructed+from+Cultures&rft.au=Bebout%2C+Brad%3BBebout%2C+Leslie%3BDetweiler%2C+Angela%3BEverroad%2C+R%3BLee%2C+Jackson%3BPett-Ridge%2C+Jennifer%3BWeber%2C+Peter&rft.aulast=Bebout&rft.aufirst=Brad&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - CPAPER T1 - JPSS Science Data Services for the Direct Readout Community T2 - 47th American Geophysical Union Fall Meeting AN - 1651736463; 6328420 JF - 47th American Geophysical Union Fall Meeting AU - Chander, Gyanesh AU - Lutz, Robert Y1 - 2014/12/15/ PY - 2014 DA - 2014 Dec 15 KW - Data processing UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1651736463?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=JPSS+Science+Data+Services+for+the+Direct+Readout+Community&rft.au=Chander%2C+Gyanesh%3BLutz%2C+Robert&rft.aulast=Chander&rft.aufirst=Gyanesh&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - https://agu.confex.com/agu/fm14/meetingapp.cgi#ModuleSessionsByDay/0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-31 N1 - Last updated - 2015-02-06 ER - TY - JOUR T1 - Methane, carbon monoxide, and ammonia in brown dwarfs and self-luminous giant planets AN - 1832593598; 720619-41 AB - We address disequilibrium abundances of some simple molecules in the atmospheres of solar composition brown dwarfs and self-luminous extrasolar giant planets using a kinetics-based one-dimensional atmospheric chemistry model. Our approach is to use the full kinetics model to survey the parameter space with effective temperatures between 500 K and 1100 K. In all of these worlds, equilibrium chemistry favors CH (sub 4) over CO in the parts of the atmosphere that can be seen from Earth, but in most disequilibrium favors CO. The small surface gravity of a planet strongly discriminates against CH (sub 4) when compared to an otherwise comparable brown dwarf. If vertical mixing is like Jupiter's, the transition from methane to CO occurs at 500 K in a planet. Sluggish vertical mixing can raise this to 600 K, but clouds or more vigorous vertical mixing could lower this to 400 K. The comparable thresholds in brown dwarfs are 1100 + or - 100 K. Ammonia is also sensitive to gravity, but, unlike CH (sub 4) /CO, the NH (sub 3) /N (sub 2) ratio is insensitive to mixing, which makes NH (sub 3) a potential proxy for gravity. HCN may become interesting in high-gravity brown dwarfs with very strong vertical mixing. Detailed analysis of the CO-CH (sub 4) reaction network reveals that the bottleneck to CO hydrogenation goes through methanol, in partial agreement with previous work. Simple, easy to use quenching relations are derived by fitting to the complete chemistry of the full ensemble of models. These relations are valid for determining CO, CH (sub 4) , NH (sub 3) , HCN, and CO (sub 2) abundances in the range of self-luminous worlds we have studied, but may not apply if atmospheres are strongly heated at high altitudes by processes not considered here (e.g., wave breaking). Copyright Contribution of the National Aeronautics and Space Administration (NASA); not subject to copyright in the United States JF - The Astrophysical Journal AU - Zahnle, Kevin J AU - Marley, Mark S Y1 - 2014/12/10/ PY - 2014 DA - 2014 Dec 10 EP - Paper no. 41 PB - IOP Publishing for American Astronomical Society, Bristol VL - 797 IS - 1 SN - 0004-637X, 0004-637X KW - clouds KW - ammonium KW - methane KW - extrasolar planets KW - one-dimensional models KW - photochemistry KW - aliphatic hydrocarbons KW - atmosphere KW - alkanes KW - quenching KW - temperature KW - giant planets KW - models KW - planets KW - carbon monoxide KW - volatiles KW - organic compounds KW - chemical reactions KW - brown dwarfs KW - hydrocarbons KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832593598?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=The+Value+of+Analog+Research+in+the+Search+for+Life&rft.au=Voytek%2C+Mary&rft.aulast=Voytek&rft.aufirst=Mary&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://iopscience.iop.org/0004-637X LA - English DB - GeoRef N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by IOP Publishing Ltd., London, United Kingdom N1 - Number of references - 60 N1 - Document feature - illus. N1 - Last updated - 2017-01-24 N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; ammonium; atmosphere; brown dwarfs; carbon monoxide; chemical reactions; clouds; extrasolar planets; giant planets; hydrocarbons; methane; models; one-dimensional models; organic compounds; photochemistry; planets; quenching; temperature; volatiles DO - http://dx.doi.org/10.1088/0004-637X/797/1/41 ER - TY - JOUR T1 - Thermo-electrochemical analysis of lithium ion batteries for space applications using Thermal Desktop AN - 1622611804; 20842605 AB - Lithium-ion batteries (LIBs) are replacing the Nickel-Hydrogen batteries used on the International Space Station (1SS). Knowing that LIB efficiency and survivability are greatly influenced by temperature, this study focuses on the thermo-electrochemical analysis of LIBs in space orbit. Current finite element modeling software allows for advanced simulation of the thermo-electrochemical processes; however the heat transfer simulation capabilities of said software suites do not allow for the extreme complexities of orbital-space environments like those experienced by the ISS. In this study, we have coupled the existing thermo-electrochemical models representing heat generation in LIBs during discharge cycles with specialized orbital-thermal software, Thermal Desktop (TD). Our model's parameters were obtained from a previous thermo-electrochemical model of a 185 Amp-Hour (Ah) LIB with 1-3 C (C) discharge cycles for both forced and natural convection environments at 300 K. Our TD model successfully simulates the temperature vs. depth-of-discharge (DOD) profiles and temperature ranges for all discharge and convection variations with minimal deviation through the programming of FORTRAN logic representing each variable as a function of relationship to DOD. Multiple parametrics were considered in a second and third set of cases whose results display vital data in advancing our understanding of accurate thermal modeling of LIBs. JF - Journal of Power Sources AU - Walker, W AU - Ardebili, H AD - Department of Mechanical Engineering, University of Houston, 4800 Calhoun Road, Houston, TX 77004-4006, USA, william.walker@nasa.gov Y1 - 2014/12/10/ PY - 2014 DA - 2014 Dec 10 SP - 486 EP - 497 PB - Elesevier Science B.V., P.O. Box 211 Amsterdam 1000 AE Netherlands VL - 269 SN - 0378-7753, 0378-7753 KW - Environment Abstracts KW - Thermo-electrochemical modeling KW - Lithium-ion batteries KW - Space applications KW - Orbital thermal environments KW - Convection KW - Finite element method KW - Computer programs KW - Batteries KW - Temperature KW - Simulation KW - Lithium KW - Heat transfer KW - ENA 08:International UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1622611804?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvabstractsmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Power+Sources&rft.atitle=Thermo-electrochemical+analysis+of+lithium+ion+batteries+for+space+applications+using+Thermal+Desktop&rft.au=Walker%2C+W%3BArdebili%2C+H&rft.aulast=Walker&rft.aufirst=W&rft.date=2014-12-10&rft.volume=269&rft.issue=&rft.spage=486&rft.isbn=&rft.btitle=&rft.title=Journal+of+Power+Sources&rft.issn=03787753&rft_id=info:doi/10.1016%2Fj.jpowsour.2014.07.020 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-11-01 N1 - Last updated - 2015-04-16 N1 - SubjectsTermNotLitGenreText - Finite element method; Convection; Computer programs; Batteries; Temperature; Simulation; Lithium; Heat transfer DO - http://dx.doi.org/10.1016/j.jpowsour.2014.07.020 ER - TY - CPAPER T1 - Homozygosity for Killer Immunoglobin-like Receptor (KIR) Haplotype a Is Associated to Negative Interim Positron Emission Tomography (PET) and a Favourable Outcome in Hodgkin Lymphoma T2 - 56th Annual Meeting of the American Society of Hematology (ASH 2014) AN - 1647638806; 6327553 JF - 56th Annual Meeting of the American Society of Hematology (ASH 2014) AU - Caocci, Giovanni AU - Littera, Roberto AU - Oppi, Sara AU - Greco, Marianna AU - Celeghini, Ivana AU - Caria, Rossella AU - Lai, Sara AU - Orru, Nicola AU - Martino, Massimo AU - Carcassi, Carlo AU - Gallamini, Andrea AU - La Nasa, Giorgio Y1 - 2014/12/06/ PY - 2014 DA - 2014 Dec 06 KW - Hodgkin's disease KW - Haplotypes KW - Positron emission tomography KW - Emissions KW - Homozygosity KW - Lymphoma UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1647638806?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=56th+Annual+Meeting+of+the+American+Society+of+Hematology+%28ASH+2014%29&rft.atitle=Homozygosity+for+Killer+Immunoglobin-like+Receptor+%28KIR%29+Haplotype+a+Is+Associated+to+Negative+Interim+Positron+Emission+Tomography+%28PET%29+and+a+Favourable+Outcome+in+Hodgkin+Lymphoma&rft.au=Caocci%2C+Giovanni%3BLittera%2C+Roberto%3BOppi%2C+Sara%3BGreco%2C+Marianna%3BCeleghini%2C+Ivana%3BCaria%2C+Rossella%3BLai%2C+Sara%3BOrru%2C+Nicola%3BMartino%2C+Massimo%3BCarcassi%2C+Carlo%3BGallamini%2C+Andrea%3BLa+Nasa%2C+Giorgio&rft.aulast=Caocci&rft.aufirst=Giovanni&rft.date=2014-12-06&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=56th+Annual+Meeting+of+the+American+Society+of+Hematology+%28ASH+2014%29&rft.issn=&rft_id=info:doi/ L2 - https://ash.confex.com/ash/2014/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-12-31 N1 - Last updated - 2015-01-23 ER - TY - NEWS T1 - Crew Module Cabin the Focus for Weekend AN - 1630343328 JF - UPI Space Daily AU - Stephen Fox at https://blogs.nasa.gov/orion/ Orion blog Y1 - 2014/12/04/ PY - 2014 DA - 2014 Dec 04 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1630343328?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apqrl&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=UPI+Space+Daily&rft.atitle=Crew+Module+Cabin+the+Focus+for+Weekend&rft.au=Waliser%2C+Duane%3BMani%2C+Neena%3BWang%2C+Bin%3BJiang%2C+Xianan%3BLee%2C+June-yi%3BLee%2C+sun-Seon&rft.aulast=Waliser&rft.aufirst=Duane&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Central N1 - Copyright - Copyright (c) by United Press International. All Rights Reserved. N1 - Last updated - 2014-12-05 ER - TY - JOUR T1 - Microchemical and structural evidence for space weathering in soils from asteroid Itokawa AN - 1832679076; 696831-57 AB - Here we report microchemical and microstructural features indicative of space weathering in a particle returned from the surface of asteroid Itokawa by the Hayabusa mission. Space weathering features include partially and completely amorphous rims, chemically and structurally heterogeneous multilayer rims, amorphous surface islands, vesiculated rim textures, and nanophase iron particles. Solar-wind irradiation is likely responsible for the amorphization as well as the associated vesiculation of grain rims. The multilayer rims contain a nanocrystalline outer layer that is underlain by an amorphous inner layer, and both have compositions that are distinct from the underlying, crystalline orthopyroxene grain. The multilayer rim features could be derived from either radiation-induced sputter deposition or vapor deposition from micrometeorite impact events. The amorphous islands on grain surfaces have a distinctive morphology and composition suggesting that they represent surface deposits of melt derived from micrometeorite impact events. These observations indicate that both irradiation damage and micrometeorite impacts play a role in surface modification and space weathering on asteroid Itokawa. Copyright 2014 The Author(s) and Thompson et al.; licensee Springer. JF - Earth, Planets and Space AU - Thompson, Michelle S AU - Christoffersen, Roy AU - Zega, Thomas J AU - Keller, Lindsay P Y1 - 2014/12// PY - 2014 DA - December 2014 EP - Paper no. 89 PB - Terra Scientific Publishing Company (TERRAPUB), Tokyo VL - 66 IS - 1 SN - 1343-8832, 1343-8832 KW - silicates KW - irradiation KW - asteroids KW - solar wind KW - microstructure KW - iron KW - meteorites KW - pyroxene group KW - Hayabusa Mission KW - spectra KW - chemical composition KW - chain silicates KW - vesicular texture KW - soils KW - Itokawa Asteroid KW - amorphous materials KW - textures KW - electron microscopy data KW - impacts KW - X-ray spectra KW - weathering KW - TEM data KW - EDS spectra KW - morphology KW - micrometeorites KW - space weathering KW - metals KW - S-type asteroids KW - orthopyroxene KW - nanophase iron KW - nanoparticles KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832679076?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Earth%2C+Planets+and+Space&rft.atitle=Microchemical+and+structural+evidence+for+space+weathering+in+soils+from+asteroid+Itokawa&rft.au=Thompson%2C+Michelle+S%3BChristoffersen%2C+Roy%3BZega%2C+Thomas+J%3BKeller%2C+Lindsay+P&rft.aulast=Thompson&rft.aufirst=Michelle&rft.date=2014-12-01&rft.volume=66&rft.issue=1&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Earth%2C+Planets+and+Space&rft.issn=13438832&rft_id=info:doi/10.1186%2F1880-5981-66-89 L2 - http://www.terrapub.co.jp/journals/EPS/ LA - English DB - GeoRef N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by Springer Verlag, Berlin, Federal Republic of Germany N1 - Number of references - 31 N1 - Document feature - illus. N1 - Last updated - 2017-01-24 N1 - SubjectsTermNotLitGenreText - amorphous materials; asteroids; chain silicates; chemical composition; EDS spectra; electron microscopy data; Hayabusa Mission; impacts; iron; irradiation; Itokawa Asteroid; metals; meteorites; micrometeorites; microstructure; morphology; nanoparticles; nanophase iron; orthopyroxene; pyroxene group; S-type asteroids; silicates; soils; solar wind; space weathering; spectra; TEM data; textures; vesicular texture; weathering; X-ray spectra DO - http://dx.doi.org/10.1186/1880-5981-66-89 ER - TY - JOUR T1 - A transmission electron microscope study of Itokawa regolith grains AN - 1832678986; 696831-39 AB - Analyses of two olivine-rich particles from asteroid 25143 Itokawa returned by the Hayabusa mission (RA-QD02-0125 and RA-QD02-0211) show evidence for space weathering processes that occurred in the Itokawa regolith. Submicrometer impact-derived crystalline and glassy grains are observed adhering to the surfaces of the particles, including albite, orthopyroxene, olivine, augite, pyrrhotite, troilite, melt splashes, and melt spherules. Both particles are surrounded by 50- to 100-nm-thick disordered rims that are nanocrystalline, not amorphous, and compositionally similar to the grain cores. A pyrrhotite grain attached to RA-QD02-0125 also shows a disordered rim that is sulfur-depleted with nanophase Fe metal grains decorating the outermost surface. The structurally disordered rims on the Hayabusa particles likely result from atomic displacement damage from solar wind ions given the similarity of the rim thickness compared to the implantation depth of solar wind ions. The outermost few nanometers of the disordered rims are more Si-rich and Mg- and Fe-depleted relative to the cores of the grains and likely represent a minor accumulation of impact-generated vapors or sputter deposits. Nanophase Fe metal particles are present in the rim on RA-QD02-0211 but were not detected in the rim on RA-QD02-0125. Solar flare particle tracks are observed in RA-QD02-0211 but were not observed in RA-QD02-0125, suggesting short surface exposure times for the particles, on the order of approximately 10 (super 3) to 10 (super 4) years. This result implies that the optical effects of space weathering develop far more rapidly than was previously recognized. Copyright 2014 The Author(s) and Keller and Berger; licensee Springer. JF - Earth, Planets and Space AU - Keller, Lindsay P AU - Berger, Eve L Y1 - 2014/12// PY - 2014 DA - December 2014 EP - Paper no. 71 PB - Terra Scientific Publishing Company (TERRAPUB), Tokyo VL - 66 IS - 1 SN - 1343-8832, 1343-8832 KW - silicates KW - magnesium KW - irradiation KW - asteroids KW - solar wind KW - microstructure KW - olivine group KW - silicon KW - iron KW - meteorites KW - Hayabusa Mission KW - olivine KW - orthosilicates KW - pyrrhotite KW - depletion KW - alkaline earth metals KW - Itokawa Asteroid KW - electron microscopy data KW - impacts KW - weathering KW - TEM data KW - order-disorder KW - nesosilicates KW - micrometeorites KW - space weathering KW - metals KW - sulfur KW - S-type asteroids KW - nanophase iron KW - sulfides KW - regolith KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832678986?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Earth%2C+Planets+and+Space&rft.atitle=A+transmission+electron+microscope+study+of+Itokawa+regolith+grains&rft.au=Keller%2C+Lindsay+P%3BBerger%2C+Eve+L&rft.aulast=Keller&rft.aufirst=Lindsay&rft.date=2014-12-01&rft.volume=66&rft.issue=1&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Earth%2C+Planets+and+Space&rft.issn=13438832&rft_id=info:doi/10.1186%2F1880-5981-66-71 L2 - http://www.terrapub.co.jp/journals/EPS/ LA - English DB - GeoRef N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by Springer Verlag, Berlin, Federal Republic of Germany N1 - Number of references - 20 N1 - Document feature - illus. N1 - Last updated - 2017-01-24 N1 - SubjectsTermNotLitGenreText - alkaline earth metals; asteroids; depletion; electron microscopy data; Hayabusa Mission; impacts; iron; irradiation; Itokawa Asteroid; magnesium; metals; meteorites; micrometeorites; microstructure; nanophase iron; nesosilicates; olivine; olivine group; order-disorder; orthosilicates; pyrrhotite; regolith; S-type asteroids; silicates; silicon; solar wind; space weathering; sulfides; sulfur; TEM data; weathering DO - http://dx.doi.org/10.1186/1880-5981-66-71 ER - TY - JOUR T1 - Mineralogy and crystallography of some Itokawa particles returned by the Hayabusa asteroidal sample return mission AN - 1832648401; 696831-55 AB - We studied seven Itokawa particles provided by the Japan Aerospace Exploration Agency (JAXA) as first International Announcement of Opportunity (AO) study mainly using electron and synchrotron radiation X-ray beam techniques. All the analyzed particles were collected from the first-touchdown site and composed of olivine and plagioclase with traces of Ca phosphate and chromite, and do not contain pyroxenes. Optical microscopy of these particles shows minor undulatory extinction of olivine and plagioclase, suggesting minor shock metamorphism (shock stage: S2). The electron microprobe analysis shows that olivine is Fo (sub 70-73) and plagioclase is An (sub 13-10) Or (sub 5-7) . The synchrotron radiation X-ray diffraction (SR-XRD) analysis of olivine crystals gives cell dimensions of a = 4.708 to 4.779 Aa, b = 10.271 to 10.289 Aa, c = 6.017 to 6.024 Aa, corresponding to the Fo content of Fo (sub nearly equal 70) by Vegard's law. This composition matches the result obtained by the electron microprobe analysis. The olivine compositions of the analyzed particles are consistent with those of LL chondrites. The cell dimensions of two plagioclase crystals (a = 8.180 to 8.194 Aa, b = 12.53 to 12.893 Aa, c = 7.125 to 7.23 Aa, alpha = 92.6 degrees to 93.00 degrees , beta = 116.36 degrees to 116.75 degrees , gamma = 90.03 degrees to 90.17 degrees ) indicate that their equilibration temperatures are 800 degrees C + or - 10 degrees C. This temperature is near the peak metamorphic temperature recorded by equilibrated ordinary chondrites. The size of plagioclase crystals and the homogeneity of olivine compositions indicate that their petrologic type is > or =5. We also analyzed plagioclase by SR iron X-ray absorption near-edge structure (SR-XANES) and found that its Fe (super 3+) /(Fe (super 2+) + Fe (super 3+) ) ratio is approximately 0.5. Such high Fe (super 3+) abundance indicates the formation under a relatively oxidizing environment. Thus, all these analyses have reconfirmed that the Itokawa particles returned by the Hayabusa spacecraft are very weakly shocked equilibrated LL chondrites, which matches the results of the preliminary examination team. Copyright 2014 The Author(s) and Mikouchi et al.; licensee Springer. JF - Earth, Planets and Space AU - Mikouchi, Takashi AU - Komatsu, Mutsumi AU - Hagiya, Kenji AU - Ohsumi, Kazumasa AU - Zolensky, Michael E AU - Hoffmann, Viktor AU - Martinez, James AU - Hochleitner, Rupert AU - Kaliwoda, Melanie AU - Terada, Yasuko AU - Yagi, Naoto AU - Takata, Masaki AU - Satake, Wataru AU - Aoyagi, Yuya AU - Takenouchi, Atsushi AU - Karouji, Yuzuru AU - Uesugi, Masayuki AU - Yada, Toru Y1 - 2014/12// PY - 2014 DA - December 2014 EP - Paper no. 82 PB - Terra Scientific Publishing Company (TERRAPUB), Tokyo VL - 66 IS - 1 SN - 1343-8832, 1343-8832 KW - silicates KW - ordinary chondrites KW - stony meteorites KW - asteroids KW - X-ray diffraction data KW - olivine group KW - thermal history KW - iron KW - electron probe data KW - XANES spectra KW - synchrotron radiation KW - meteorites KW - ferric iron KW - mineral composition KW - Hayabusa Mission KW - olivine KW - orthosilicates KW - oxides KW - framework silicates KW - spectra KW - chondrites KW - cell dimensions KW - plagioclase KW - Itokawa Asteroid KW - LL chondrites KW - chromite KW - phosphates KW - metamorphism KW - X-ray spectra KW - nesosilicates KW - metals KW - S-type asteroids KW - feldspar group KW - shock metamorphism KW - particles KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832648401?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Earth%2C+Planets+and+Space&rft.atitle=Mineralogy+and+crystallography+of+some+Itokawa+particles+returned+by+the+Hayabusa+asteroidal+sample+return+mission&rft.au=Mikouchi%2C+Takashi%3BKomatsu%2C+Mutsumi%3BHagiya%2C+Kenji%3BOhsumi%2C+Kazumasa%3BZolensky%2C+Michael+E%3BHoffmann%2C+Viktor%3BMartinez%2C+James%3BHochleitner%2C+Rupert%3BKaliwoda%2C+Melanie%3BTerada%2C+Yasuko%3BYagi%2C+Naoto%3BTakata%2C+Masaki%3BSatake%2C+Wataru%3BAoyagi%2C+Yuya%3BTakenouchi%2C+Atsushi%3BKarouji%2C+Yuzuru%3BUesugi%2C+Masayuki%3BYada%2C+Toru&rft.aulast=Mikouchi&rft.aufirst=Takashi&rft.date=2014-12-01&rft.volume=66&rft.issue=1&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Earth%2C+Planets+and+Space&rft.issn=13438832&rft_id=info:doi/10.1186%2F1880-5981-66-82 L2 - http://www.terrapub.co.jp/journals/EPS/ LA - English DB - GeoRef N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by Springer Verlag, Berlin, Federal Republic of Germany N1 - Number of references - 31 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2017-01-24 N1 - SubjectsTermNotLitGenreText - asteroids; cell dimensions; chondrites; chromite; electron probe data; feldspar group; ferric iron; framework silicates; Hayabusa Mission; iron; Itokawa Asteroid; LL chondrites; metals; metamorphism; meteorites; mineral composition; nesosilicates; olivine; olivine group; ordinary chondrites; orthosilicates; oxides; particles; phosphates; plagioclase; S-type asteroids; shock metamorphism; silicates; spectra; stony meteorites; synchrotron radiation; thermal history; X-ray diffraction data; X-ray spectra; XANES spectra DO - http://dx.doi.org/10.1186/1880-5981-66-82 ER - TY - JOUR T1 - Molecular crowding and early evolution AN - 1832586407; 743110-12 AB - The environment of protocells might have been crowded with small molecules and functional and non-specific polymers. In addition to altering conformational equilibria, affecting reaction rates and changing the structure and activity of water, crowding might have enhanced the capabilities of protocells for evolutionary innovation through the creation of extended neutral networks in the fitness landscape. Copyright 2015 Springer Science+Business Media Dordrecht JF - Origins of Life and Evolution of the Biosphere AU - Saha, Ranajay AU - Pohorille, Andrew AU - Chen, Irene A Y1 - 2014/12// PY - 2014 DA - December 2014 SP - 319 EP - 324 PB - Springer, Dordrecht VL - 44 IS - 4 SN - 0169-6149, 0169-6149 KW - molecular crowding KW - nucleic acids KW - RNA KW - chemical reactions KW - protocells KW - theoretical models KW - biologic evolution KW - vesicles KW - neural networks KW - polymers KW - life origin KW - 08:General paleontology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832586407?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Origins+of+Life+and+Evolution+of+the+Biosphere&rft.atitle=Molecular+crowding+and+early+evolution&rft.au=Saha%2C+Ranajay%3BPohorille%2C+Andrew%3BChen%2C+Irene+A&rft.aulast=Saha&rft.aufirst=Ranajay&rft.date=2014-12-01&rft.volume=44&rft.issue=4&rft.spage=319&rft.isbn=&rft.btitle=&rft.title=Origins+of+Life+and+Evolution+of+the+Biosphere&rft.issn=01696149&rft_id=info:doi/10.1007%2Fs11084-014-9392-3 L2 - http://link.springer.com/journal/11084 LA - English DB - GeoRef N1 - Conference title - Open questions on the origin of life N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by Springer Verlag, Berlin, Federal Republic of Germany N1 - Number of references - 37 N1 - SuppNotes - Based on Publisher-supplied data N1 - Last updated - 2017-01-24 N1 - SubjectsTermNotLitGenreText - biologic evolution; chemical reactions; life origin; molecular crowding; neural networks; nucleic acids; polymers; protocells; RNA; theoretical models; vesicles DO - http://dx.doi.org/10.1007/s11084-014-9392-3 ER - TY - JOUR T1 - An updated treatment of soil texture and associated hydraulic properties in a global land modeling system AN - 1832582852; 722759-1 AB - The advent of new data sets describing soil texture and associated soil properties offers the promise of improved hydrological simulation. Here we describe the composition of a new soil texture data set and its implementation into a specific land surface modeling system, namely, the Catchment land surface model (LSM) of the NASA Goddard Earth Observing System version 5 (GEOS-5) modeling and assimilation framework. First, global soil texture composites are generated using data from the Harmonized World Soil Database version 1.21 (HWSD1.21) and the State Soil Geographic (STATSGO2) project, with explicit consideration of different levels of organic material. Then, the LSM's soil parameters are upgraded using the new texture data, with hydraulic parameters derived for the more extensive set of texture classes using pedotransfer functions. Other changes to the LSM parameters are included to further support simulations at increasingly fine resolutions. A suite of simulations with the original and new parameter versions shows modest yet significant improvements in the Catchment LSM's simulation of soil moisture and surface hydrological fluxes. The revised LSM parameters will be used for the forthcoming Soil Moisture Active Passive (SMAP) soil moisture assimilation product. Abstract Copyright (2014), The Authors. JF - Journal of Advances in Modeling Earth Systems AU - De Lannoy, Gabrielle J M AU - Koster, Randal D AU - Reichle, Rolf H AU - Mahanama, Sarith P P AU - Liu, Qing Y1 - 2014/12// PY - 2014 DA - December 2014 SP - 957 EP - 979 PB - Wiley for Institute of Global Environment and Society, Calverton, MD VL - 6 IS - 4 KW - clay KW - topsoil KW - hydraulics KW - moisture KW - data processing KW - rhizosphere KW - STATSGO2 KW - GEOS-5 KW - simulation KW - carbon KW - sediments KW - retention KW - drainage basins KW - data bases KW - neural networks KW - horizons KW - organic carbon KW - baseline studies KW - soils KW - hydrology KW - soil mechanics KW - sand KW - bulk density KW - in situ KW - clastic sediments KW - grain size KW - global KW - statistical analysis KW - equations KW - land surface model KW - distribution KW - artificial intelligence KW - pedotransfer functions KW - HWSD1.21 KW - 30:Engineering geology KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832582852?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Advances+in+Modeling+Earth+Systems&rft.atitle=An+updated+treatment+of+soil+texture+and+associated+hydraulic+properties+in+a+global+land+modeling+system&rft.au=De+Lannoy%2C+Gabrielle+J+M%3BKoster%2C+Randal+D%3BReichle%2C+Rolf+H%3BMahanama%2C+Sarith+P+P%3BLiu%2C+Qing&rft.aulast=De+Lannoy&rft.aufirst=Gabrielle+J&rft.date=2014-12-01&rft.volume=6&rft.issue=4&rft.spage=957&rft.isbn=&rft.btitle=&rft.title=Journal+of+Advances+in+Modeling+Earth+Systems&rft.issn=1942-2466&rft_id=info:doi/10.1002%2F2014MS000330 L2 - http://agupubs.onlinelibrary.wiley.com/agu/journal/10.1002/(ISSN)1942-2466/ LA - English DB - GeoRef N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Number of references - 71 N1 - PubXState - MD N1 - Document feature - illus. incl. 5 tables, sketch maps N1 - SuppNotes - Includes appendices N1 - Last updated - 2017-01-24 N1 - SubjectsTermNotLitGenreText - artificial intelligence; baseline studies; bulk density; carbon; clastic sediments; clay; data bases; data processing; distribution; drainage basins; equations; GEOS-5; global; grain size; horizons; HWSD1.21; hydraulics; hydrology; in situ; land surface model; moisture; neural networks; organic carbon; pedotransfer functions; retention; rhizosphere; sand; sediments; simulation; soil mechanics; soils; statistical analysis; STATSGO2; topsoil DO - http://dx.doi.org/10.1002/2014MS000330 ER - TY - JOUR T1 - On the electron diffusion region in planar, asymmetric, systems AN - 1808379580; PQ0002651763 AB - Particle-in-cell simulations and analytical theory are employed to study the electron diffusion region in asymmetric reconnection, which is taking place in planar configurations without a guide field. The analysis presented here focuses on the nature of the local reconnection electric field and on differences from symmetric configurations. Further emphasis is on the complex structure of the electron distribution in the diffusion region, which is generated by the mixing of particles from different sources. We find that the electric field component that is directly responsible for flux transport is provided not by electron pressure-based, "quasi-viscous," terms but by inertial terms. The quasi-viscous component is shown to be critical in that it is necessary to sustain the required overall electric field pattern in the immediate neighborhood of the reconnection X line. Key Points * Magnetic reconnection in asymmetric systems is much more complicated * The reconnection electric field is given by electron inertia * The electron distribution function structure is critical JF - Geophysical Research Letters AU - Hesse, Michael AU - Aunai, Nicolas AU - Sibeck, David AU - Birn, Joachim AD - Heliophysics Science Division, NASA Goddard Space Flight Center, Greenbelt, Maryland, USA. Y1 - 2014/12// PY - 2014 DA - December 2014 SP - 8673 EP - 8680 PB - Blackwell Publishing Ltd., 9600 Garsington Road Oxford OX4 2DQ United States VL - 41 IS - 24 SN - 0094-8276, 0094-8276 KW - Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Simulation Analysis KW - Electric fields KW - Planning KW - Electric Fields KW - Identification KW - Sedimentation KW - Fluctuations KW - Identification keys KW - SW 0810:General KW - Q2 09182:Methods and instruments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1808379580?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=On+the+electron+diffusion+region+in+planar%2C+asymmetric%2C+systems&rft.au=Hesse%2C+Michael%3BAunai%2C+Nicolas%3BSibeck%2C+David%3BBirn%2C+Joachim&rft.aulast=Hesse&rft.aufirst=Michael&rft.date=2014-12-01&rft.volume=41&rft.issue=24&rft.spage=8673&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1002%2F2014GL061586 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-08-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Electric fields; Planning; Sedimentation; Identification; Identification keys; Simulation Analysis; Electric Fields; Fluctuations DO - http://dx.doi.org/10.1002/2014GL061586 ER - TY - JOUR T1 - Simulations of water migration in the lunar exosphere AN - 1769967992; 2016-017851 AB - We perform modeling and analysis of water in the lunar exosphere. There were two controlled experiments of water interactions with the surface of the Moon observed by the Lunar Atmosphere and Dust Environment Explorer (LADEE) Neutral Mass Spectrometer (NMS). The Chang'e 3 landing on the Moon on 14 Dec 2013 putatively sprayed approximately 120 kg of water on the surface on the Moon at a mid-morning local time. Observations by LADEE near the noon meridian on six of the orbits in the 24 hours following the landing constrain the propagation of water vapor. Further, on 4 Apr 2014, LADEE's Orbital Maintenance Manuever (OMM) #21 sprayed the surface of the Moon with an estimated 0.73 kg of water in the pre-dawn sector. Observations of this maneuver and later in the day constrain the adsorption and release at dawn of adsorbed materials. Using the Chang'e 3 exhaust plume and LADEE's OMM-21 as control experiments, we set limits to the adsorption and thermalization of water with lunar regolith. This enables us to predict the efficiency of the migration of water as a delivery mechanism to the lunar poles. Then we simulate the migration of water through the lunar exosphere using the rate of sporadic inputs from meteoritic sources (Benna et al., this session). Simulations predict the amount of water adsorbed to the surface of the Moon and the effective delivery rate to the lunar polar cold traps. JF - American Geophysical Union Fall Meeting AU - Hurley, D AU - Benna, M AU - Mahaffy, P R AU - Elphic, R C AU - Goldstein, D B AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P23C EP - 3996 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1769967992?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Simulations+of+water+migration+in+the+lunar+exosphere&rft.au=Hurley%2C+D%3BBenna%2C+M%3BMahaffy%2C+P+R%3BElphic%2C+R+C%3BGoldstein%2C+D+B%3BAnonymous&rft.aulast=Hurley&rft.aufirst=D&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-03-03 N1 - CODEN - #07548 ER - TY - JOUR T1 - Reexamination of lunar exospheric dust estimates using discrete dipole scattering simulations AN - 1769967977; 2016-017858 AB - Analysis of Apollo regolith samples showed that lunar dust grains consist of a diverse set of shapes. Consequently, the optical scattering properties of these grains will differ from those predicted using the Mie approximation, which strictly applies only for spheres. Because it is analytically convenient and without shape ambiguity, Mie theory has been used routinely to estimate the concentration of dust or its upper limits in the lunar exosphere from brightness measurements acquired during orbital dust searches. Utilizing the Discrete Dipole Approximation (DDA), we have computed a more realistic set of scattering parameters for a collection of sub-micron grain shapes that represents the ultra-fine fraction of lunar soil. Included in this suite are spheroids (oblate and prolate) and irregular geometries resembling isolated grains observed in Apollo samples. A subset of these models includes the addition of nanophase iron, in order to examine the influence of space weathering. Wavelength coverage of the DDA scattering computations extends from far-UV to near-IR. This range is diagnostic of grain size and shape, since scattering efficiency depends on both of these parameters. This collection of grain scattering models is used, together with an observing simulation code, to reexamine some prior estimates of exospheric dust concentration derived from Apollo-era limb brightness measurements (e.g., Apollo 15 coronal photography), as well as the subsequent Clementine star tracker search and a search for lunar horizon glow by LRO Lyman Alpha Mapping Project (LAMP). We compare our revised estimates of exospheric dust abundance with the results of these previous dust searches. JF - American Geophysical Union Fall Meeting AU - Stubbs, T J AU - Glenar, D A AU - Richard, D T AU - Feldman, P D AU - Retherford, K D AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P23C EP - 4007 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1769967977?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Reexamination+of+lunar+exospheric+dust+estimates+using+discrete+dipole+scattering+simulations&rft.au=Stubbs%2C+T+J%3BGlenar%2C+D+A%3BRichard%2C+D+T%3BFeldman%2C+P+D%3BRetherford%2C+K+D%3BAnonymous&rft.aulast=Stubbs&rft.aufirst=T&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-03-03 N1 - CODEN - #07548 ER - TY - JOUR T1 - The RIMFAX ground penetrating radar on the Mars 2020 rover AN - 1769967957; 2016-017800 AB - The Radar Imager for Mars' Subsurface Exploration - RIMFAX is a Ground Penetrating Radar selected for NASA's Mars 2020 rover mission. RIMFAX will add a new dimension to the rover's toolset by providing the capability to image the shallow subsurface beneath the rover. The principal goals of the RIMFAX investigation are to image subsurface layering and structure, and to provide information regarding subsurface composition. Depending on materials, RIMFAX will image the subsurface stratigraphy to maximum depths of 10 to 500 meters, with vertical resolutions of 5 to 20 cm, with a horizontal sampling distance of 2 to 20 cm along the rover track. The resulting radar cross sections will provide important information on the geological context of surface outcrops as well as the geological and environmental history of the field area. The radar uses a Gated FMCW waveform and a single ultra wideband antenna that is used both for transmitting and receiving. The presentation will give an overview of the RIMFAX investigation, the radar system and show experimental results from a prototype radar. JF - American Geophysical Union Fall Meeting AU - Hamran, S E AU - Amundsen, H E F AU - Carter, L M AU - Ghent, R R AU - Kohler, J AU - Mellon, M T AU - Paige, D A AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P11A EP - 3746 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1769967957?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=The+RIMFAX+ground+penetrating+radar+on+the+Mars+2020+rover&rft.au=Hamran%2C+S+E%3BAmundsen%2C+H+E+F%3BCarter%2C+L+M%3BGhent%2C+R+R%3BKohler%2C+J%3BMellon%2C+M+T%3BPaige%2C+D+A%3BAnonymous&rft.aulast=Hamran&rft.aufirst=S&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-03-03 N1 - CODEN - #07548 ER - TY - JOUR T1 - Observation of high density plasma in the vicinity of Europa and its potential relationship with plume activity AN - 1769967955; 2016-018081 AB - During the course of the Galileo Mission at Jupiter, the spacecraft obtained high-resolution observations of plasmas during 8 near encounters with Europa. Most typically, these encounters provided evidence of modest production of plasma within Europa's exosphere, with ion densities comparable to that of the plasma sheet. However, plasma densities significantly greater than those of the surrounding plasma sheet were seen during two encounters. Once, as the spacecraft traversed the moon's near-downstream wake with respect to the prevailing flow of Jupiter's plasma sheet/plasma torus. Densities were several times higher than those of the plasma sheet, and entrainment of Europa's ionosphere accounts for this observation. The other encounter occurred in the upstream region. Densities were an order of magnitude higher than usual, and this has been interpreted as potential evidence of ionization within a water plume. However, the usual signatures of fresh ion production that would be expected in a plume are not found in the ion energy-angle spectra. The observations and possible explanations are presented in this report. JF - American Geophysical Union Fall Meeting AU - Paterson, William R AU - Sittler, E C, Jr AU - Cooper, J F AU - Hartle, R E AU - Lipatov, A S AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P52A EP - 08 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1769967955?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Observation+of+high+density+plasma+in+the+vicinity+of+Europa+and+its+potential+relationship+with+plume+activity&rft.au=Paterson%2C+William+R%3BSittler%2C+E+C%2C+Jr%3BCooper%2C+J+F%3BHartle%2C+R+E%3BLipatov%2C+A+S%3BAnonymous&rft.aulast=Paterson&rft.aufirst=William&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-03-03 N1 - CODEN - #07548 ER - TY - JOUR T1 - The geodesy of the outer solar system bodies from precise spacecraft tracking AN - 1769967944; 2016-017885 AB - Gravity is at the same time the main force acting on spacecraft and an essential tool to investigate the interior structure of planetary bodies. The large infrastructure of NASA's Deep Space Network (DSN), developed to support telecommunications and navigation of deep space probes, became therefore also a crucial instrument in planetary geodesy and geophysics. This dual role of the DSN was especially important in the Cassini mission, where the precise navigation of the spacecraft throughout the many flybys of Titan and the icy satellites of the Saturnian system was unavoidably entangled with the determination of the gravity fields and the ephemerides of those bodies. Thanks to precise range rate measurements enabled by the DSN and the onboard radio system, Cassini has been able to determine the density and the moment of inertia of Titan, and the presence of large tidal deformations indicating the presence of a global, internal, ocean. Gravity-topography correlations have also been used to infer the thickness and the rigidity of the satellite's icy shell. Recently, Doppler data acquired during three Enceladus flybys revealed the presence of a gravity anomaly in the southern polar region that is compatible with a regional sea at a depth of about 40 km. This sea is the likely source of the Enceladus's water plumes. Although current planetary geodesy experiments exploited tracking systems at X band (7.1-8.5 GHz), much improved range rate measurements can be attained with Ka band radio links (32.5-34 GHz), because of their larger immunity to plasma noise. This advanced system, available at the DSS 25 tracking antenna in Goldstone (CA), has been already used in the Cassini cruise phase to carry out an accurate test of general relativity, and will be exploited again by Juno in 2016 to determine the gravity field of Jupiter. Additional uses of the DSN Ka band system have been proposed in several precise geodesy experiments with future planetary missions, both with orbiters and landers. JF - American Geophysical Union Fall Meeting AU - Iess, L AU - Asmar, S AU - Anabtawi, A AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P31A EP - 3969 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1769967944?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=The+geodesy+of+the+outer+solar+system+bodies+from+precise+spacecraft+tracking&rft.au=Iess%2C+L%3BAsmar%2C+S%3BAnabtawi%2C+A%3BAnonymous&rft.aulast=Iess&rft.aufirst=L&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-03-03 N1 - CODEN - #07548 ER - TY - JOUR T1 - The D/H ratio of the Martian water that formed the Yellowknife Bay mudstone rocks measured by the MSL-SAM instrument AN - 1769967886; 2016-017872 AB - Martian atmospheric loss processes change the isotopic composition of H, C, O, N, and Ar. Escape process to space enrich heavier isotopes in the atmosphere over geological time. The SAM instrument on the Curiosity rover has measured these isotopes in H2O, CO2, N2, and Ar multiple times over the course of the mission. In addition to this present record, volatiles extracted from ancient rocks such as the clays sampled in Yellowknife Bay mudstones of Gale crater may be able to reveal the isotopic composition of light elements much earlier in martian history. Small samples of mudstone rocks acquired by the Curiosity drill were analyzed by SAM for their volatile content. The SAM Tunable Laser Spectrometer (TLS) measured the D/H ratio in water and the Quadrupole Mass Spectrometer (QMS) determined the D/H ratio in hydrogen released from these samples by stepwise heating. Clay materials on Earth are known to contain water in several forms. Molecular water bound loosely in pore spaces may be removed by drying under ambient conditions. Water also may be adsorbed on the surface of clay mineral surfaces or reside in interlayer positions or within structural channels in the clays. Finally, clay minerals contain hydroxyl units bound structurally in the minerals that at elevated temperatures (> approximately 450 degrees C) produce water and hydrogen of dehydroxylation; this high-temperature component is most likely to reflect the isotopic composition of water (and atmosphere) present at the time of clay formation. We have designed and implemented a stepped extraction protocol to more precisely measure the D/H ratio in both the low and high temperature water in Martian clays. The D/H in the high temperature water reflects the D/H of the water that formed these clay minerals. We will discuss the implications for water loss over the past 3+Ga and compare our findings with those of related Martian meteorite studies. This research was supported by the National Aeronautics and Space Administration. JF - American Geophysical Union Fall Meeting AU - Mahaffy, P R AU - Webster, C R AU - Brunner, A AU - McAdam, A AU - Flesch, G AU - Stern, J C AU - Eigenbrode, J L AU - Conrad, P G AU - Pavlov, A AU - Malespin, C AU - Atreya, S K AU - Blank, J G AU - Owen, T C AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P23E EP - 03 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1769967886?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=The+D%2FH+ratio+of+the+Martian+water+that+formed+the+Yellowknife+Bay+mudstone+rocks+measured+by+the+MSL-SAM+instrument&rft.au=Stampoulis%2C+Dimitrios%3BAndreadis%2C+Konstantinos%3BGranger%2C+Stephanie%3BFisher%2C+Joshua%3BBehrangi%2C+Ali%3BDas%2C+Narendra%3BTurk%2C+Joseph&rft.aulast=Stampoulis&rft.aufirst=Dimitrios&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-03-03 N1 - CODEN - #07548 ER - TY - JOUR T1 - Exploration for evidence of habitable environments and life on Mars can benefit from research in analog environments AN - 1769967867; 2016-017878 AB - Analog studies help to understand the processes that might sustain any habitable environments on Mars and the attributes of organisms that might have inhabited them. These studies must consider key differences between Mars and Earth, for example, the ways that tectonics, impacts, hydrologic cycles, and aeolian processes have interacted to shape climate, the conditions in the near subsurface, and the processes that can preserve any evidence of any past habitable environments and life. Key questions include the following: How can we characterize Martian geochemical cycles of biogenic elements? What is the minimum chemical water activity of Mars-relevant aqueous solutions that might sustain the propagation by life as we know it? Can life persist inside rocks that have been altered isochemically at relatively low water/rock values? What are the minimum combinations of free energy and power needed to sustain life in Mars-relevant environments? Given the pervasive harsh conditions at the Martian surface, where and how can we seek evidence of any extant life? What kinds of nonbiological features that mimic biosignatures might be produced in potentially habitable Martian environments? Which methods can most effectively resolve Earthly contamination from potential Martian biosignatures in situ? What biosignatures might be produced by subsurface life and how can they be distinguished from abiotic features? How might we recognize evidence of any "life as we DON'T know it?" For future landing site selection, how can remotely sensed features be related more effectively to key attributes of habitable environments such as past availability and persistence of water, potential sources of biochemical energy, and favorable environmental conditions? Which Martian processes and environments are most favorable for preservation of evidence of any past environments and biosignatures? How can deposits that might be favorable for preservation be found and characterized from orbit? How can we assess radiation hazards for the preservation of biosignatures in order to guide sample selection during landed missions? The need to understand such issues in a Martian context should influence the design and implementation of analog studies. JF - American Geophysical Union Fall Meeting AU - Des Marais, David J AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P24A EP - 02 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1769967867?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Exploration+for+evidence+of+habitable+environments+and+life+on+Mars+can+benefit+from+research+in+analog+environments&rft.au=Des+Marais%2C+David+J%3BAnonymous&rft.aulast=Des+Marais&rft.aufirst=David&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-03-03 N1 - CODEN - #07548 ER - TY - JOUR T1 - The effects of surface and subsurface structural anomalies on the detectability of shallow aquifers on Europa by sounding radar AN - 1769967858; 2016-018039 AB - Clutter from surface topography can compromise the sounding radar capability to detect shallow subsurface features in several planetary environments. Herein we investigate the effect of surface and subsurface structural anomalies on the detectability of potential shallow aquifers for the case of Europa ice penetrating radars. We investigate the surface and volume scattering effects arising from the cratering, geothermal and ice tectonic structural elements associated with Europa's geological evolution. Using the Finite Difference Time Domain (FDTD) method we modeled the radar wave propagation through Europa's subsurface in the frequency range from 9 to 30 MHz for two Europa geoelectrical models representing the thermally conductive and convective subsurface models. These geoelectrical models are then meshed to match the subsurface structural models for the most common two types of terrains on Europa, i.e. the Double Ridges and the Chaos Terrain, represented. Our simulations suggest that shallow aquifer detection in the first 3 km of the Europa subsurface can be achieved in most types of terrains for the conductive models and derive the constraints for its detectability in the terrains that are hypothesized to be formed from convective thermal activity. Both the large subsurface fractures and the brittle-ductile interface and their slopes variation are also possible to detect in the simulated radargrams for various surface roughness conditions. Our results suggests that quantifying the surface and volume scattering effects arising respectively from topographic and roughness conditions and subsurface structural anomalies through FDTD simulations is crucial to optimize the future sounding radar orbital data acquisitions. We will also present the added value of using interferometric and passive acquisitions to reduce the ambiguities of the complex clutter and maximize subsurface detectability of aquifers. JF - American Geophysical Union Fall Meeting AU - Heggy, E AU - Scabbia, G AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P51C EP - 3966 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1769967858?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=The+effects+of+surface+and+subsurface+structural+anomalies+on+the+detectability+of+shallow+aquifers+on+Europa+by+sounding+radar&rft.au=Heggy%2C+E%3BScabbia%2C+G%3BAnonymous&rft.aulast=Heggy&rft.aufirst=E&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-03-03 N1 - CODEN - #07548 ER - TY - JOUR T1 - Investigating the habitability and preservation potential of two aqueous settings in Gusev crater, Mars AN - 1769967836; 2016-017922 AB - The Spirit rover was sent to Gusev crater because of evidence that it contained an ancient lake. Lacustrine sediments were not identified, but aqueous activity was. Spirit encountered widespread meter-scale eroded outcrops and regolith composed of opaline silica in a setting associated with small-scale explosive volcanism. This combination was interpreted as evidence for a hydrothermal system, with silica produced by either fumarolic acid-sulfate leaching of host rocks or precipitation from silica-rich hot spring or geyser waters [1]. Evidence for the latter is stronger based on stratigraphic and textural arguments [2]. Our ongoing lab and field studies of terrestrial opaline silica occurrences demonstrate that fumarolic alteration leads to greater mineral diversity and less SiO2 enrichment than observed in the Gusev case, pointing to a hot spring or geyser origin. Terrestrial hot springs support microbial communities and can preserve that evidence over geologic timescales [3], making outcrops of opaline silica ideal targets in a search for biosignatures with instruments on the Mars 2020 rover. Spirit also discovered outcrops with 16-34 wt% Mg-Fe carbonate. Dubbed Comanche, the carbonate was thought to result from dissolution by hydrothermal fluids of pre-existing carbonates elsewhere in Gusev followed by transport and re-precipitation [4]. A reanalysis found evidence that the alteration is consistent with evaporative precipitation of low-temperature, near-surface solutions derived from limited water-rock interaction in rocks equivalent to nearby "Algonquin" outcrops [5]. Water-limited leaching of formerly widespread Algonquin-like tephra deposits by ephemeral waters, followed by transport and evaporative precipitation of the fluids into the Comanche outcrops, can explain their chemical, mineralogical, and textural characteristics. The habitability potential of this setting is unclear, but detrital materials carried by floodwaters and preserved in carbonate cements may be of astrobiological interest. [1] Squyres, S. W., et al. (2008), Science, 320, 1063-1067. [2] Ruff, S. W., et al. (2011), J. Geophys. Res., 116, E00F2. [3] Walter, M. R., et al. (1996), Palaios, 11, 497-518. [4] Morris, R. V., et al. (2010), Science, 329, 421-424. [5] Ruff, S. W., et al. (2014), Geology, 42, 4, 359-362. JF - American Geophysical Union Fall Meeting AU - Ruff, S W AU - Farmer, J D AU - Milliken, R AU - Niles, P B AU - Alfano, F AU - Clarke, A B AU - Kraft, M D AU - Hardgrove, C J AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P32A EP - 08 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1769967836?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Investigating+the+habitability+and+preservation+potential+of+two+aqueous+settings+in+Gusev+crater%2C+Mars&rft.au=Ruff%2C+S+W%3BFarmer%2C+J+D%3BMilliken%2C+R%3BNiles%2C+P+B%3BAlfano%2C+F%3BClarke%2C+A+B%3BKraft%2C+M+D%3BHardgrove%2C+C+J%3BAnonymous&rft.aulast=Ruff&rft.aufirst=S&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-03-03 N1 - CODEN - #07548 ER - TY - JOUR T1 - Comet 67p/Churyumov-Gerasimenko; first science results by Rosetta/Osiris AN - 1769967828; 2016-017925 AB - Abstract ESA's Rosetta mission arrived on August 6, 2014, at target Comet 67P/Churyumov-Gerasimenko after 10 years of cruise. OSIRIS (Optical, Spectroscopic, and Infrared Remote Imaging System) is the scientific imaging system onboard Rosetta. It comprises a Narrow Angle Camera (NAC) for nucleus surface and dust studies and a Wide Angle Camera (WAC) for the wide field coma investigations. We present the first science results achieved by OSIRIS from the arrival at the comet throughout the mapping phase. The overview will cover surface morphology and activity of the nucleus as seen in gas, dust, and local jets. Acknowledgements OSIRIS was built by a consortium led by the Max-Planck-Institut fuer Sonnensystemforschung, Goettingen, Germany, in collaboration with CISAS, University of Padua, Italy, the Laboratoire d'Astrophysique de Marseilles, France, the Instituto de Astrofisica de Andalucia, CSIC, Granada, Spain, the Scientific Support Office of the European Space Agency, Noordwijk, The Netherlands, the Instituto Nacional de Tecnica Aeroespacial, Madrid, Spain, the Universidad Politechnica de Madrid, Spain, the Department of Physics and Astronomy of Uppsala University, Sweden, and the Institut fuer Datentechnik und Kommunikationsnetze der Technischen Universitaet Braunschweig, Germany. The support of the national funding agencies of Germany (DLR), France (CNES), Italy (ASI), Spain (MEC), Sweden (SNSB), and the ESA Technical Directorate is gratefully acknowledged. We thank the Rosetta Science Ground Segment at ESAC, the Rosetta Mission Operations Centre at ESOC and the Rosetta Project at ESTEC for their outstanding work enabling the science return of the Rosetta Mission. JF - American Geophysical Union Fall Meeting AU - Sierks, H AU - Barbieri, Cesare AU - Lamy, P L AU - Rodrigo, R AU - Koschny, D AU - Rickman, H AU - Agarwal, J AU - A'Hearn, M F AU - Angrilli, F AU - Barucci, M A AU - Bertaux, Jean-Loup AU - Bertini, I AU - Besse, S AU - Bodewits, D AU - Capanna, Claire AU - Cremonese, Gabriele AU - Da Deppo, V AU - Davidsson, B AU - Debei, S AU - De Cecco, M AU - Ferri, F AU - Fornasier, Sonia AU - Fulle, M AU - Gaskell, R W AU - Groussin, Olivier AU - Guettler, C AU - Gutierrez, Pedro AU - Hviid, S F AU - Ip, W H AU - Jorda, Laurent AU - Keller, H U AU - Joerg, K AU - Kramm, R AU - Kuhrt, E AU - Kueppers, M AU - La Forgia, F AU - Lara, L AU - Lazzarin, M AU - Leyrat, C AU - Moreno, J F AU - Lowry, S AU - Magrin, S AU - Marchi, S AU - Marzari, Francesco AU - Michalik, H AU - Mottola, S AU - Account, T AU - Oklay, N AU - Pajola, Maurizio AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P32B EP - 02 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1769967828?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Comet+67p%2FChuryumov-Gerasimenko%3B+first+science+results+by+Rosetta%2FOsiris&rft.au=Sierks%2C+H%3BBarbieri%2C+Cesare%3BLamy%2C+P+L%3BRodrigo%2C+R%3BKoschny%2C+D%3BRickman%2C+H%3BAgarwal%2C+J%3BA%27Hearn%2C+M+F%3BAngrilli%2C+F%3BBarucci%2C+M+A%3BBertaux%2C+Jean-Loup%3BBertini%2C+I%3BBesse%2C+S%3BBodewits%2C+D%3BCapanna%2C+Claire%3BCremonese%2C+Gabriele%3BDa+Deppo%2C+V%3BDavidsson%2C+B%3BDebei%2C+S%3BDe+Cecco%2C+M%3BFerri%2C+F%3BFornasier%2C+Sonia%3BFulle%2C+M%3BGaskell%2C+R+W%3BGroussin%2C+Olivier%3BGuettler%2C+C%3BGutierrez%2C+Pedro%3BHviid%2C+S+F%3BIp%2C+W+H%3BJorda%2C+Laurent%3BKeller%2C+H+U%3BJoerg%2C+K%3BKramm%2C+R%3BKuhrt%2C+E%3BKueppers%2C+M%3BLa+Forgia%2C+F%3BLara%2C+L%3BLazzarin%2C+M%3BLeyrat%2C+C%3BMoreno%2C+J+F%3BLowry%2C+S%3BMagrin%2C+S%3BMarchi%2C+S%3BMarzari%2C+Francesco%3BMichalik%2C+H%3BMottola%2C+S%3BAccount%2C+T%3BOklay%2C+N%3BPajola%2C+Maurizio%3BAnonymous&rft.aulast=Sierks&rft.aufirst=H&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-06-17 N1 - CODEN - #07548 ER - TY - JOUR T1 - Global mapping of CO (sub 2) on Enceladus AN - 1769967820; 2016-018088 AB - We present the first global map of CO2 on Enceladus. The purpose is to determine whether CO2 is associated to fractures and eruptions, and if it formed recently. Cassini observed tectonic features and plumes on Enceladus, which could be caused by a warm subsurface ocean containing dissolved gases. CO2 should be one of these gases (Postberg, F. et al., Nature, 2009), and some of it should be erupted and condensed onto the surface (Matson et al., Icarus, 2012). Validation of this hypothesis could be done by determining the amount, location and molecular state of the CO2. Free CO2 ice and complexed CO2 were reported on Enceladus (Brown et al., Science, 2006; Hansen, LPSC, 2010) from analysis of Cassini Visual and Infrared Mapping Spectrometer (VIMS) data, and on other Saturn icy satellites (Cruikshank et al., Icarus, 2010 ; Filacchione et al., Icarus, 2010). Complexed CO2 has also been found from Galileo Near-Infrared Mapping Spectrometer (NIMS) spectra on the icy Galilean satellites (McCord et al., Science, 1997 and JGR, 1998), apparently due to both interior outgassing and radiation processing. CO2 has an asymmetric stretching mode that creates an absorption band, the wavelength position of which is sensitive to the nature of molecular associations between CO2 and their neighbors. Free CO2 ice absorbs at 4.268 mu m for (Sandford and Allamandola, 1990) and CO2 complexed with other molecules absorbs at shorter wavelengths, around 4.25 mu m or shorter (Chaban et al., Icarus, 2007). In VIMS spectra of Enceladus, this stretching mode absorption band is near the instrument detection limit. We utilized all VIMS data sets available that had significant spatial resolution to increase the statistics of the observations for any given location and improve the signal to noise. CO2 has also a smaller absorption at 2.7 mu m, although it occurs in a range of wavelength that has higher signal-to-noise ratio by several magnitudes, because the surface of Enceladus (mostly H2O ice) has higher albedo. We used both absorptions in the range 4.25-4.268 mu m and at 2.7 mu m to identify CO2. Our results confirm free CO2 is concentrated on the southern polar region, which is consistent with release from the eruptions, and is compatible with CO2 present in the interior. We now focus on detecting variations of band position at 4.25-4.268 mu m, in order to map free and complexed CO2. JF - American Geophysical Union Fall Meeting AU - McCord, T B AU - Combe, J P AU - Matson, D AU - Johnson, T V AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P53A EP - 4000 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1769967820?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Global+mapping+of+CO+%28sub+2%29+on+Enceladus&rft.au=McCord%2C+T+B%3BCombe%2C+J+P%3BMatson%2C+D%3BJohnson%2C+T+V%3BAnonymous&rft.aulast=McCord&rft.aufirst=T&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-03-03 N1 - CODEN - #07548 ER - TY - JOUR T1 - An evaluation of the hydrocarbon trap as a potential source of organic compounds detected by the SAM instrument on the Curiosity rover AN - 1769967800; 2016-017909 AB - The Sample Analysis at Mars (SAM) instrument suite aboard the Curiosity rover catalogued a suite of organic compounds using pyrolysis gas chromatography-mass spectrometry (Py-GC-MS) and evolved gas analyses (EGA) of aeolian and subsurface drill fines at Gale crater, Mars. The sources of these organic compounds are also being investigated through laboratory experiments in which Mars analogue mixtures are analyzed by Py-GC-MS and EGA under SAM-like conditions. In this study we examined the hydrocarbon trap, a component of the SAM Py-GC-MS system, as a potential source of some of the compounds detected on Mars. Analogue mixtures consisting of olivine sand and varying amounts of Cl-containing salts and magnetite were analyzed with Py-GC-MS operated under SAM-like conditions (i.e. trap materials and pyrolysis and GC temperature programs were the same as SAM analyses). Carbon dioxide, benzene and toluene were identified in all experiments and chlorobenzenes (CBs) and HCl were identified in the experiments with Cl salts. As the concentration of Cl salts increased the abundance of CBs, HCl and CO2 increased whereas the abundance of benzene and toluene remained stable. In order to confirm that these compounds originate from the trap we analyzed the samples while bypassing the trap. Benzene was detected, although at much lower concentrations, and toluene could not be definitively identified. Traces of CB were also detected when Cl salts were analyzed without the trap, again at lower concentrations. Additionally, traces of phthalic acid were detected in the Cl salt samples; this compound readily forms CBs in the presence of HCl (Miller et al., 2013). From this we can conclude that traces of benzene, toluene, and CBs can be degradation products originating from the hydrocarbon trap. Understanding how these compounds form and their relationship to the concentration of different mineral decomposition products helps us interpret the significance of all the organic compounds identified in SAM GC-MS data. JF - American Geophysical Union Fall Meeting AU - Summons, R E AU - Miller, K AU - Glavin, D P AU - Martin, M AU - Eigenbrode, J L AU - Szopa, C AU - Buch, Arnaud AU - Belmahdi, Imene AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P31D EP - 4016 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1769967800?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=An+evaluation+of+the+hydrocarbon+trap+as+a+potential+source+of+organic+compounds+detected+by+the+SAM+instrument+on+the+Curiosity+rover&rft.au=Summons%2C+R+E%3BMiller%2C+K%3BGlavin%2C+D+P%3BMartin%2C+M%3BEigenbrode%2C+J+L%3BSzopa%2C+C%3BBuch%2C+Arnaud%3BBelmahdi%2C+Imene%3BAnonymous&rft.aulast=Summons&rft.aufirst=R&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-03-03 N1 - CODEN - #07548 ER - TY - JOUR T1 - Geologic framework for Aeolis Palus bedrock, and its relationship to Mt. Sharp, Mars AN - 1769967798; 2016-017999 AB - For the past 30 months the Curiosity rover has encountered stratified bedrock along a drive route extending from Bradbury Landing a Yellowknife Bay a Kimberley a Pahrump, a distance of nearly equal 9 km. Curiosity still has nearly equal 2.5 km to make it to Murray Buttes, taken as the base of Mt. Sharp. All bedrock outcrops expose sedimentary rocks, including mud/silt/sandstones, and conglomerate, all of basaltic composition. These rocks all form part of a fluvio-lacustrine facies association, with small volumes of co-mingled eolian deposits. Most are simply interpreted as distal alluvial fan deposits. Paleocurrent data from the Shaler outcrop (Yellowknife Bay) suggests a dominant component of southwesterly flow, and scattered outcrops within the Kimberley region provide evidence for southward-prograding clinoforms. Thus, most of the volume of sedimentary rock observed during the drive from Yellowknife Bay to the Kimberley is consistent with derivation of sediments from erosion of the northern crater rim. However, some stratigraphic intervals may derive from other source areas simply due to the lack of paleocurrent information. A major compositional change is observed in the Yellowknife Bay formation where lower members (Sheepbed, Gillespie) are slightly more mafic than average martian crust, whereas the overlying Glenelg member are more depleted in MgO+FeO, and more enriched in K2O (and Na2O locally). This signature of elevated K2O has been observed commonly in outcrops extending all the way the Kimberley where the drilled Windjana sandstone revealed significant quantities of potassium feldspar. Conglomerates may differ from sandstones in containing a greater fraction of plagioclase feldspar. This suggests that much of the bedrock that underlies Aeolis Palus between Yellowknife Bay and the Kimberley is derived from alkaline source rocks, likely located along the northern rim. In contrast, the lower part of Yellowknife Bay, including the Sheepbed mudstone - with finer grain size - might record more distant provenance. Recent results reflecting the geology between the Kimberley and Murray Buttes will also be discussed. JF - American Geophysical Union Fall Meeting AU - Grotzinger, J P AU - Blake, David F AU - Crisp, Joy A AU - Edgett, K S AU - Gellert, R AU - Gupta, S AU - Lewis, K W AU - Mahaffy, Paul R AU - Malin, M C AU - Newsom, H E AU - Parker, Timothy J AU - Rice, Melissa AU - Rubin, D M AU - Siebach, K L AU - Stack, K AU - Sumner, D Y AU - Wiens, R C AU - Williams, R M E AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P42C EP - 01 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1769967798?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Geologic+framework+for+Aeolis+Palus+bedrock%2C+and+its+relationship+to+Mt.+Sharp%2C+Mars&rft.au=Grotzinger%2C+J+P%3BBlake%2C+David+F%3BCrisp%2C+Joy+A%3BEdgett%2C+K+S%3BGellert%2C+R%3BGupta%2C+S%3BLewis%2C+K+W%3BMahaffy%2C+Paul+R%3BMalin%2C+M+C%3BNewsom%2C+H+E%3BParker%2C+Timothy+J%3BRice%2C+Melissa%3BRubin%2C+D+M%3BSiebach%2C+K+L%3BStack%2C+K%3BSumner%2C+D+Y%3BWiens%2C+R+C%3BWilliams%2C+R+M+E%3BAnonymous&rft.aulast=Grotzinger&rft.aufirst=J&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-03-03 N1 - CODEN - #07548 ER - TY - JOUR T1 - SAM chlorine observations at Gale Crater AN - 1769967797; 2016-017875 AB - The Sample Analysis at Mars investigation has detected Cl-bearing phases of various oxidation states in its thermally evolved gas measurements of both a wind drift deposit of fines and three different rock samples delivered as sieved drill powders to the instrument suite. In addition to HCl (Leshin et al, 2013; Ming et al., 2013) and chlorinated hydrocarbon detections (Glavin et al., 2013; Freissinet et al., in review), oxygen releases consistent with the decomposition of perchlorate salts are also observed. We have also measured chlorine isotope ratios of the four different solid samples, which yielded variable and more negative delta 37Cl than typically observed in SNC meteorite analyses. We summarize our chlorine observations in the context of other gases observed in the SAM solid sample analyses, including water, sulfur- and nitrogen-bearing compounds, and REMS observations of Relative Humidity and Temperature, and compare with knowledge of Martian chlorine obtained from the SNC meteorites. Finally, we examine the implications of surface/atmosphere Cl interactions and isotopic ratios for the rise and decline of habitable surface environments on Mars. This research was supported by the National Aeronautics and Space Administration (NASA) Mars Science Laboratory mission. JF - American Geophysical Union Fall Meeting AU - Conrad, P G AU - Farley, K A AU - Vasconcelos, P M AU - Malespin, C AU - Franz, H AU - McAdam, A AU - Sutter, B AU - Stern, J C AU - Clark, B C AU - Atreya, S K AU - Mahaffy, P R AU - Martin-Torres, J AU - Zorzano, M P AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P23E EP - 06 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1769967797?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=SAM+chlorine+observations+at+Gale+Crater&rft.au=Conrad%2C+P+G%3BFarley%2C+K+A%3BVasconcelos%2C+P+M%3BMalespin%2C+C%3BFranz%2C+H%3BMcAdam%2C+A%3BSutter%2C+B%3BStern%2C+J+C%3BClark%2C+B+C%3BAtreya%2C+S+K%3BMahaffy%2C+P+R%3BMartin-Torres%2C+J%3BZorzano%2C+M+P%3BAnonymous&rft.aulast=Conrad&rft.aufirst=P&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-03-03 N1 - CODEN - #07548 ER - TY - JOUR T1 - Antarctic analogs for Enceladus AN - 1769967791; 2016-018062 AB - Enceladus is a new world for astrobiology. The Cassini discovery of the icy plume emanating from the South Polar region indicates an active world, where detection of water, organics, sodium, and nano-particle silica in the plume strongly suggests that the source is a subsurface salty ocean reservoir. Recent gravity data from Cassini confirms the presence of a regional sea extending north to 50 degrees S. An ocean habitat under a thick ice cover is perhaps a recurring theme in the Outer Solar System, but what makes Enceladus unique is that the plume jetting out into space is carrying samples of this ocean. Therefore, through the study of Enceladus' plumes we can gain new insights not only of a possible habitable world in the Solar Systems, but also about the formation and evolution of other icy-satellites. Cassini has been able to fly through this plume--effectively sampling the ocean. It is time to plan for future missions that do more detailed analyses, possibly return samples back to Earth and search for evidence of life. To help prepare for such missions, the need for Earth-based analog environments is essential for logistical, methodological (life detection) and theoretical development. We have undertaken studies of two terrestrial environments that are close analogs to Enceladus' ocean: Lake Vida and Lake Untersee--two ice-sealed Antarctic lakes that represent physical, chemical and possibly biological analogs for Enceladus. By studying the diverse biology and physical and chemical constraints to life in these two unique lakes we will begin to understand the potential habitability of Enceladus and other icy moons, including possible sources of nutrients and energy, which together with liquid water are the key ingredients for life. Analog research such as this will also enable us to develop and test new strategies to search for evidence of life on Enceladus. JF - American Geophysical Union Fall Meeting AU - Murray, A E AU - Andersen, D T AU - McKay, C P AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P51F EP - 03 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1769967791?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Antarctic+analogs+for+Enceladus&rft.au=Murray%2C+A+E%3BAndersen%2C+D+T%3BMcKay%2C+C+P%3BAnonymous&rft.aulast=Murray&rft.aufirst=A&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-03-03 N1 - CODEN - #07548 ER - TY - JOUR T1 - Compositional constraints on the best characterized rocky exoplanet, Kepler-36 b AN - 1769965334; 2016-017846 AB - Kepler-36 is an extreme planetary system, consisting of two transiting sub-Neptune-size planets that revolve around a sub-giant star with orbital periods of 13.84 and 16.24 days. Mutual gravitational interactions between the two planets perturb the planets' transit times, allowing the planets' masses to be measured. Despite the similarity of their masses and orbital radii, the planets show a stark contrast in their mean densities; the inner planet (Kepler-36 b) is more than eight times as dense as its outer companion planet (Kepler-36 c). We perform a photo-dynamical analysis of the Kepler-36 system based on more than three years of Kepler photometry. With N-body integrations of initial conditions sampled from the photo-dynamical fits, we further refine the properties of the system by ruling out solutions that show large scale instability within 5 Giga-days. Ultimately, we measure the planets' masses within 4.2% precision, and the planets' radii with 1.8% precision. Kepler-36 b is currently the rocky exoplanet with the most precisely measured mass and radius. Kepler-36 b's mass and radius are consistent with a earth-like composition, and an iron-enhanced Mercury-like composition is ruled out. JF - American Geophysical Union Fall Meeting AU - Rogers, L AU - Deck, K AU - Lissauer, J J AU - Carter, J AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P23B EP - 3989 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1769965334?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Compositional+constraints+on+the+best+characterized+rocky+exoplanet%2C+Kepler-36+b&rft.au=Rogers%2C+L%3BDeck%2C+K%3BLissauer%2C+J+J%3BCarter%2C+J%3BAnonymous&rft.aulast=Rogers&rft.aufirst=L&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-03-03 N1 - CODEN - #07548 ER - TY - JOUR T1 - Geology before Pluto; pre-encounter considerations AN - 1769965321; 2016-017912 AB - Pluto, its large satellite Charon, and its four small known satellites represent the first trans-Neptunian Kuiper Belt objects populating the outer-most solar system beyond the gas giant planets to be studied in detail from a spacecraft (New Horizons). A complete picture of the solar nebula and solar system formation cannot be confidently formulated until representatives of this group of bodies at the edge of solar space have been examined. The Pluto system is composed of unique, lunar- and intermediate-sized objects that can tell us much about how objects with volatile icy compositions evolve. Modeling of the interior suggests that geologic activity may have been significant to some degree, and observations of frost on the surface could imply the need for a geologic reservoir for the replenishment of these phases. However, these putative indicators of Pluto's geologic history are inconclusive and unspecific. Detailed examination of Pluto's geologic record is the only plausible means of bridging the gap between theory and observation. In this talk I will examine the potential importance of these tentative indications of geologic activity and how specific spacecraft observations have been designed and used to constrain the Pluto system's geologic history. The cameras of New Horizons will provide robust data sets that should be immanently amenable to geological analysis of the Pluto system's landscapes. In this talk, we begin with a brief discussion of the planned observations by the New Horizons cameras that will bear most directly on geological interpretability. Then I will broadly review major geological processes that could potentially operate on the surfaces of Pluto and its moons. I will first survey exogenic processes (i.e., those for which energy for surface modification is supplied externally to the planetary surface): impact cratering, sedimentary processes (including volatile migration), and the work of wind. I will conclude with an assessment of the prospects for endogenic activity in the form of tectonics and cryovolcanism. JF - American Geophysical Union Fall Meeting AU - Moore, J M AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P31E EP - 04 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1769965321?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Geology+before+Pluto%3B+pre-encounter+considerations&rft.au=Moore%2C+J+M%3BAnonymous&rft.aulast=Moore&rft.aufirst=J&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-03-03 N1 - CODEN - #07548 ER - TY - JOUR T1 - LADEE NMS observations of sporadic water and carbon dioxide signatures in the lunar exosphere AN - 1769964693; 2016-017829 AB - During its six months in orbit, the Lunar Atmosphere and Dust Environment Explorer (LADEE) has detected signatures of water and carbon dioxide in the exosphere of the Moon. The signature of these two volatile gases has been measured by the Neutral Mass Spectrometer (NMS) as sporadic short-lived signal increases above instrument background. Following the detection of these two species in the exosphere, a systematic measurement campaign with a cadence of few hours over four main lunar local time sectors (sunrise, midnight, sunset, and noon) was put in place and continued to the end of the mission. While this measurement campaign did not reveal any local time dependence for these sporadic signal events, it showed that they are globally correlated with predicted micrometeoroid streams. Moreover, a subset of these NMS observations were acquired at low altitudes when water and carbon dioxide signals were below instrumental background, and used to establish new upper limits of the background abundances of these two gases in the exosphere. JF - American Geophysical Union Fall Meeting AU - Benna, Mehdi AU - Mahaffy, P R AU - Hurley, D AU - Stubbs, T J AU - Hodges, R R, Jr AU - Elphic, R C AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P21F EP - 02 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1769964693?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=LADEE+NMS+observations+of+sporadic+water+and+carbon+dioxide+signatures+in+the+lunar+exosphere&rft.au=Benna%2C+Mehdi%3BMahaffy%2C+P+R%3BHurley%2C+D%3BStubbs%2C+T+J%3BHodges%2C+R+R%2C+Jr%3BElphic%2C+R+C%3BAnonymous&rft.aulast=Benna&rft.aufirst=Mehdi&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-03-03 N1 - CODEN - #07548 ER - TY - JOUR T1 - Experimental investigations of Si-isotope fractionation associated with Fe-Si co-precipitates in simulated Precambrian seawater AN - 1769964352; 2016-020575 AB - The Si cycle was dramatically different in the Precambrian ocean due to the absence of marine Si-secreting organisms. Precambrian Si isotopic compositions were largely controlled by chemical precipitation of Si, input of Si with different isotopic compositions (e.g., continental versus hydrothermal sources) and later alteration and diagenetic processes associated with silicification. In Precambrian banded iron formations (BIFs) and chert deposits there is an over 4 ppm spread of Si isotopes (delta 30Si), which stands in marked contrast to the narrow range (<0.5) measured in igneous rocks, highlighting the potential of using Si isotopes to reconstruct those processes that controlled the Precambrian marine Si cycle. However, unequivocal interpretations of Si isotope compositions measured in Precambrian Fe-Si rich sediments is hampered by a lack of understanding of Si-isotope fractionation factors associated with formation of these sediments and subsequent diagenetic processes. This study experimentally investigates Si isotope fractionation during the formation of Fe-Si co-precipitates, and between aqueous Si and Fe-Si co-precipitates. All experiments are conducted in an artificially prepared medium that mimics Archean seawater (e.g. Si: approximately 60 ppm), rather than in a simple Fe-Si solution, because previous studies have revealed distinct Fe isotope fractionation behaviors in artificial Archean seawater (AAS) compared to simple solutions. One set of experiments investigated oxidation of Fe2+ in the AAS at room temperature, which produced amorphous Fe-Si precipitates. Preliminary results show that delta 30Si values of Fe-Si co-precipitates are approximately 2 ppm lower than the initial AAS (Delta 30Siprecip-AAS = -2.13 + or - 0.18 ppm (2sigma )). A second set of experiments trace Si-isotope exchange between aqueous Si (AAS) and Fe-Si co-precipitates in an anaerobic chamber, using a 29Si spike (i.e. three-isotope method). The results of these experiments will form a basis for reliable interpretations of Si isotopes recorded in Precambrian sediments. JF - American Geophysical Union Fall Meeting AU - Zheng, X AU - Beard, B L AU - Reddy, T R AU - Johnson, C AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract PP53D EP - 04 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1769964352?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Experimental+investigations+of+Si-isotope+fractionation+associated+with+Fe-Si+co-precipitates+in+simulated+Precambrian+seawater&rft.au=Zheng%2C+X%3BBeard%2C+B+L%3BReddy%2C+T+R%3BJohnson%2C+C%3BAnonymous&rft.aulast=Zheng&rft.aufirst=X&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-03-03 N1 - CODEN - #07548 ER - TY - JOUR T1 - The shape of comet 67P/Churyumov-Gerasimenko from Rosetta/Osiris images AN - 1769964045; 2016-017966 AB - The ROSETTA mission has reached the nucleus of comet 67P/Churyumov-Gerasimenko in early August, allowing a detailed mapping of its surface with the onboard OSIRIS imaging system, up to resolutions of 50 cm or even better in some areas. Shape reconstruction techniques have been used since July 2014 to build a very detailed 3D model of the comet surface and to retrieve highly accurate rotational parameters. The attached Figure shows an early 3D shape of the comet. The most striking property of the global shape is the presence of two clearly separated components. We use a combination of images and 3D models to quantitatively characterize their bulk and surface properties: relative position, volume, topography and roughness. The position of the center of mass and the direction of the principal axis of rotation are used to constrain the internal mass distribution. Digital terrain models, slope, gravity, and geo-referenced images of the most interesting features observed at the surface of the comet are presented and consequences for their formation are discussed. If they are detected, topographic changes which could have occurred between August and December 2014 are also presented. Acknowledgements. OSIRIS was built by a consortium led by the Max-Planck-Institut fuer Sonnensystemforschung, Goettingen, Germany, in collaboration with CISAS, University of Padova, Italy, the Laboratoire d'Astrophysique de Marseille, France, the Instituto de Astrofisica de Andalucia, CSIC, Granada, Spain, the Scientific Support Office of the European Space Agency, Noordwijk, The Netherlands, the Instituto Nacional de Tecnica Aeroespacial, Madrid, Spain, the Universidad Politecnica de Madrid, Spain, the Department of Physics and Astronomy of Uppsala JF - American Geophysical Union Fall Meeting AU - Jorda, Laurent AU - Gaskell, R W AU - Hviid, S F AU - Capanna, Claire AU - Groussin, Olivier AU - Gutierrez, Pedro AU - Lamy, Philippe AU - Scholten, Frank AU - Preusker, Frank AU - Keller, H U AU - Knollenberg, Joerg AU - Kuhrt, Ekkehard AU - Mottola, Stefano AU - Sierks, H AU - Snodgrass, C AU - Thomas, Nicolas AU - Vincent, J B AU - Marchi, S AU - Massironi, Matteo AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P41C EP - 3943 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1769964045?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=The+shape+of+comet+67P%2FChuryumov-Gerasimenko+from+Rosetta%2FOsiris+images&rft.au=Jorda%2C+Laurent%3BGaskell%2C+R+W%3BHviid%2C+S+F%3BCapanna%2C+Claire%3BGroussin%2C+Olivier%3BGutierrez%2C+Pedro%3BLamy%2C+Philippe%3BScholten%2C+Frank%3BPreusker%2C+Frank%3BKeller%2C+H+U%3BKnollenberg%2C+Joerg%3BKuhrt%2C+Ekkehard%3BMottola%2C+Stefano%3BSierks%2C+H%3BSnodgrass%2C+C%3BThomas%2C+Nicolas%3BVincent%2C+J+B%3BMarchi%2C+S%3BMassironi%2C+Matteo%3BAnonymous&rft.aulast=Jorda&rft.aufirst=Laurent&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-03-03 N1 - CODEN - #07548 ER - TY - JOUR T1 - Erosion effects of liquid water and volatiles in a former lacustrine environment; from Gale crater to Death Valley AN - 1769963831; 2016-017906 AB - During its first two years of exploration, Curiosity rover provided strong evidence of water activity at Gale crater on Mars. While liquid water is not commonly present on the surface of Mars, large depressions such as Gale crater hold evidence that water was collected in impact craters on Mars in the distant past. Specific features such as alluvial fans, inverted riverbeds, moat areas, and sedimentary formations, demonstrate strong water activity on low elevation regions of Mars. While surface water (gradually) disappeared as the climate and atmosphere of Mars changed, important water deposits formed underground, either as sub-surface ice shelves, or in the form of hydrated minerals, as demonstrated by MER and MSL. Although the presence of water ice under the ancient lake bed at the foothills of Mount Sharp is still to be determined, the area explored so far by Curiosity exhibits erosion features that can help describe the history of water activity along billions of years, e.g., river streams, lacustrine sedimentation, and later cycles of evaporation, frosting and sublimation. This presentation features a comparative study of water erosion processes at Gale crater on Mars and Death Valley (DV) on Earth, from ancient water flows and lacustrine environments, through evaporation, dryness, and cyclic frosting and sublimation. Groundwater deposits in Death Valley offer best opportunities to study the process of minerals hydration, as well as landforms related to underground water percolation and evaporation, similar to those discovered by Curiosity at Yellowknife Bay. Furthermore, sedimentary processes in lacustrine proximal settings similar to those argued for Mount Sharp, or seen at Gale Crater's floor, have been studied in several locations of DV. These include, but are not limited to, younger dry lake beds of former lakes Manly and Panamint, carved badland formations of Furnace Creek Lake (Zabriskie Point) and older Tertiary lacustrine and fanglomeratic deposits exposed in cratered terrains (i.e., Ubehebe volcanic field). All of the above involve depositional and erosional landforms (gullies, alluvial fans, bottom slope debris deposits, layers of hydrated minerals), which can be used as natural research laboratory for sedimentary and erosion processes and as analog models for Gale Crater. JF - American Geophysical Union Fall Meeting AU - Iacob, R H AU - Bonaccorsi, R AU - Iacob, C E AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P31D EP - 4013 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1769963831?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Erosion+effects+of+liquid+water+and+volatiles+in+a+former+lacustrine+environment%3B+from+Gale+crater+to+Death+Valley&rft.au=Iacob%2C+R+H%3BBonaccorsi%2C+R%3BIacob%2C+C+E%3BAnonymous&rft.aulast=Iacob&rft.aufirst=R&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-03-03 N1 - CODEN - #07548 ER - TY - JOUR T1 - Radiolytic gas-driven cryovolcanism at Europa AN - 1769963821; 2016-018080 AB - A large apparent plume of water vapor was detected at the south pole of Europa in December 2012 by the Hubble Space Telescope [Roth et al., 2014] when Europa was near maximum radial distance (apojove) in its orbit around Jupiter. The absence thus far of further detections both at apojove and elsewhere may indicate an episodic source. There was reportedly no evident brightening locally or globally of the Europa oxygen neutral atmosphere coincident with the plume water vapor detection. This could be consistent with an O2-driven cryovolcanism model in which bubbles of trapped gases in the ice crust are released from clathrates on thermal contact with rising oceanic water and expand to force upward fluid flows to the surface. It has long been suggested [Chyba, 2000; Cooper et al., 2001] that the Europa ocean could be oxygenated by radiolytic oxygen from surface irradiation, also implying that the overlying ice crust could be saturated in oxygen clathrates [Hand et al., 2006]. That the moon ocean could be a potentially habitable environment by oxygenation or other processes has been a major motivation for missions to Europa. The radiolytic gas source would be far greater at Europa as compared to much lesser source rates for a similar model at Enceladus [Cooper et al., 2009]. Detected plume emissions could arise from both the directly ejected vapor and from sputtering and/or sublimation of chemically-active plume frost in the polar cap region. Europa's surface gravity is much higher than that of Enceladus, so most of the plume vapor would return to the surface as frost. If sputtering or radiolysis were active contributors to polar cap emissions from the frost, then emissions could also maximize at 6.5-hour intervals as Europa passes through the densest part of the Jovian magnetospheric plasma sheet as well as at 85-hour apojove intervals of the orbital period. For comparison to available polar cap plume and global atmospheric observations we present ballistic simulations of the resultant neutral gas density distributions for different source models. Chyba, C., Nature, 403, 381, 2000. Cooper, J. F., et al., Icarus, 149, 133-159, 2001. Cooper, J. F., et al., Plan. Sp. Sci., 57, 1607-1620, 2009. Hand, K. P., et al., Astrobiology, 6, 463-482, 2006. Roth, L., et al., Science, 343, 171-174, 2014. JF - American Geophysical Union Fall Meeting AU - Killen, Rosemary M AU - Cooper, J F AU - Sarantos, M AU - Sittler, E C, Jr AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P52A EP - 07 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1769963821?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Radiolytic+gas-driven+cryovolcanism+at+Europa&rft.au=Killen%2C+Rosemary+M%3BCooper%2C+J+F%3BSarantos%2C+M%3BSittler%2C+E+C%2C+Jr%3BAnonymous&rft.aulast=Killen&rft.aufirst=Rosemary&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-03-03 N1 - CODEN - #07548 ER - TY - JOUR T1 - The giant planet satellite exospheres AN - 1769963816; 2016-017832 AB - Exospheres are relatively common in the outer solar system among the moons of the gas giant planets. They span the range from very tenuous, surface-bounded exospheres (e.g., Rhea, Dione) to quite robust exospheres with exobase above the surface (e.g., Io, Triton), and include many intermediate cases (e.g., Europa, Ganymede, Enceladus). The exospheres of these moons exhibit an interesting variety of sources, from surface sputtering, to frost sublimation, to active plumes, and also well illustrate another common characteristic of the outer planet satellite exospheres, namely, that the primary species often exists both as a gas in atmosphere, and a condensate (frost or ice) on the surface. As described by Yelle et al. (1995) for Triton, "The interchange of matter between gas and solid phases on these bodies has profound effects on the physical state of the surface and the structure of the atmosphere." A brief overview of the exospheres of the outer planet satellites will be presented, including an inter-comparison of these satellites exospheres with each other, and with the exospheres of the Moon and Mercury. JF - American Geophysical Union Fall Meeting AU - McGrath, M A AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P21F EP - 07 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1769963816?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=The+giant+planet+satellite+exospheres&rft.au=McGrath%2C+M+A%3BAnonymous&rft.aulast=McGrath&rft.aufirst=M&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-03-03 N1 - CODEN - #07548 ER - TY - JOUR T1 - Radiation chemistry of potential Europa plumes AN - 1769963797; 2016-018100 AB - Recent detection of atomic hydrogen and atomic oxygen and their correlation to potential water plumes on Europa [Roth, Saur et al. 2014] invoked significant interest in further understanding of these potential/putative plumes on Europa. Unlike on Enceladus, Europa receives significant amount of electron and particle radiation. If the plumes come from trailing hemisphere and in the high radiation flux regions, then it is expected that the plume molecules be subjected to radiation processing. Our interest is to understand to what extent such radiation alterations occur and how they can be correlated to the plume original composition, whether organic or inorganic in nature. We will present laboratory studies [Henderson and Gudipati 2014] involving pulsed infrared laser ablation of ice that generates plumes similar to those observed on Enceladus [Hansen, Esposito et al. 2006; Hansen, Shemansky et al. 2011] and expected to be similar on Europa as a starting point; demonstrating the applicability of laser ablation to simulate plumes of Europa and Enceladus. We will present results from electron irradiation of these plumes to determine how organic and inorganic composition is altered due to radiation. Acknowledgments: This research was enabled through partial funding from NASA funding through Planetary Atmospheres, and the Europa Clipper Pre-Project. B.L.H. acknowledges funding from the NASA Postdoctoral Program for an NPP fellowship. Hansen, C. J., L. Esposito, et al. (2006). Enceladus' water vapor plume. Science 311(5766): 1422-1425. Hansen, C. J., D. E. Shemansky, et al. (2011). The composition and structure of the Enceladus plume. Geophysical Research Letters 38. Henderson, B. L. and M. S. Gudipati (2014). Plume composition and evolution in multicomponent ices using resonant two-step laser ablation and ionization mass spectrometry. The Journal of Physical Chemistry A 118(29): 5454-5463. Roth, L., J. Saur, et al. (2014). Transient water vapor at Europa's south pole. Science 343(6167): 171-174. JF - American Geophysical Union Fall Meeting AU - Gudipati, M S AU - Henderson, B L AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P53B EP - 4015 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1769963797?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Radiation+chemistry+of+potential+Europa+plumes&rft.au=Gudipati%2C+M+S%3BHenderson%2C+B+L%3BAnonymous&rft.aulast=Gudipati&rft.aufirst=M&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-03-03 N1 - CODEN - #07548 ER - TY - JOUR T1 - Joint analysis of bulk water/chlorine distribution in the Martian subsurface along MSL curiosity traverse from comparison between DAN/MSL and other instruments observations onboard Curiosity rover AN - 1769963775; 2016-018032 AB - Data gathered with the Dynamic Albedo of Neutrons (DAN) instrument onboard Curiosity rover during active neutron spectroscopy observations presents variations of induced subsurface neutron flux due to regional variability of bulk water distribution and elemental composition in martian soil. The duration, shape and amplitude of post pulse neutron emission measured by DAN primarily depend on the subsurface structure and distribution of hydrogen (the most efficient moderation element) but abundance of other elements is also important. In particular, the presence of elements with high thermal neutron absorption cross sections can depress the population of thermal neutrons that leak out of the surface. Several elements such as for example Cl, Fe, Ti, Mn, Gd have large cross-section for thermal neutron absorption. In our analysis we have derived water depth distribution and have also estimated a bulk content of chlorine. It is considered as "chlorine-equivalent" parameter for accounting of all absorbers of thermal neutrons. We have compared our estimations with other instrument observations performed onboard Curiosity in order to test observed variability on different horizontal and vertical scales. First of all, we have tried to correlate our estimations of chlorine-equivalent abundance with elemental composition provided by APXS at several contact science locations along Curiosity path where such a comparison was supported by observable geological context. DAN instrument has a large footprint area with a radius of about 1.5 m under the aft end of the rover. It is significantly larger than the footprint of contact and remote measurements of elemental composition provided by the other science instruments onboard Curiosity. But DAN provides a unique capability to look below the surface as deep as 60 cm and study the depth distribution of water and neutron-absorbing elements. DAN measurements are complementary to other Curiosity observations and could combined with them to provide joint study of subsurface water and chlorine distribution and test compositional heterogeneity in the subsurface. JF - American Geophysical Union Fall Meeting AU - Litvak, M L AU - Mitrofanov, I G AU - Sanin, A B AU - Lisov, D AU - Hardgrove, C J AU - Boynton, W V AU - Jun, I AU - Kuzmin, R AU - Martin-Torres, J AU - Mischna, M A AU - Moersch, J AU - Nikiforov, S AU - Starr, R D AU - Tate, C G AU - Zorzano, M P AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P51C EP - 3958 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1769963775?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Joint+analysis+of+bulk+water%2Fchlorine+distribution+in+the+Martian+subsurface+along+MSL+curiosity+traverse+from+comparison+between+DAN%2FMSL+and+other+instruments+observations+onboard+Curiosity+rover&rft.au=Litvak%2C+M+L%3BMitrofanov%2C+I+G%3BSanin%2C+A+B%3BLisov%2C+D%3BHardgrove%2C+C+J%3BBoynton%2C+W+V%3BJun%2C+I%3BKuzmin%2C+R%3BMartin-Torres%2C+J%3BMischna%2C+M+A%3BMoersch%2C+J%3BNikiforov%2C+S%3BStarr%2C+R+D%3BTate%2C+C+G%3BZorzano%2C+M+P%3BAnonymous&rft.aulast=Litvak&rft.aufirst=M&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-03-03 N1 - CODEN - #07548 ER - TY - JOUR T1 - Simulations of impact features on comet 67P/Churyumov-Gerasimenko, as imaged by OSIRIS/ROSETTA AN - 1769963751; 2016-017967 AB - The images obtained by OSIRIS on board the ESA Rosetta mission during the approaching phase and during the orbit around the nucleus of the comet 67P/Churyumov-Gerasimenko allowed to map the cometary surface with the very high resolution of the Narrow Angle Camera (NAC). Further important products have been realized with the nucleus images as the shape model and the Digital Terrain Model allowing to derive the profile of some features possibly identified as impact craters. Impact craters have been simulated with the iSALE hydrocode, one of the multi-rheology and multi-material extension of the SALE hydrocode (Amsden et al., 1980, Collins et al., 2004; Wuennemann et al., 2006), specifically developed to model impact crater formation. The structure and composition of the projectile was simplified to spherical and homogeneous dunite impacting at an angle of 90 degrees , while we have assumed different target composition from dunite to water ice changing the porosity and the strength. A further important parameter to take into account is the temperature of the region where the crater is formed and we will adopt an updated thermal model of the nucleus in order to better define it. We will show the preliminary results of the impact simulations performed in 2D, including some insights on the nucleus structure. Acknowledgements: We gratefully acknowledge the developers of iSALE-2D, including Gareth Collins, Kai Wuennemann, Dirk Elbeshausen, Boris Ivanov and Jay Melosh (see www.iSALE-code.de). JF - American Geophysical Union Fall Meeting AU - Cremonese, Gabriele AU - Lucchetti, Alice AU - Marchi, S AU - Martellato, Elena AU - Massironi, Matteo AU - Oklay, N AU - Sierks, H AU - Vincent, J B AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P41C EP - 3944 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1769963751?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Simulations+of+impact+features+on+comet+67P%2FChuryumov-Gerasimenko%2C+as+imaged+by+OSIRIS%2FROSETTA&rft.au=Cremonese%2C+Gabriele%3BLucchetti%2C+Alice%3BMarchi%2C+S%3BMartellato%2C+Elena%3BMassironi%2C+Matteo%3BOklay%2C+N%3BSierks%2C+H%3BVincent%2C+J+B%3BAnonymous&rft.aulast=Cremonese&rft.aufirst=Gabriele&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-03-03 N1 - CODEN - #07548 ER - TY - JOUR T1 - Gullies and lobate deposits as geomorphological evidence for impact-induced transient water flow and localized, buried ice-bearing deposits on Vesta AN - 1769963739; 2016-018042 AB - Vesta, the second most massive asteroid, has long been perceived as anhydrous. However, recent studies suggesting the localized presence of hydrated minerals and past sub-surface water have challenged this perception (e.g. Sarafian et al., 2013; De Sanctis et al., 2012; Prettyman et al., 2012; McCord et al. 2012; Reddy et al. 2012; Treiman et al, 2004). Herein we show evidence that transient water flowed on the surface, in a debris-flow-like process, and left distinctive geomorphologic features. Based on analysis of approximately 20 m/pixel images obtained by Dawn, we identify a class of locally occurring, interconnected and curvilinear systems of gullies in the walls of young (< 100s Ma) impact craters, ending in lobate deposits near the crater floors. As curvilinear systems only occur within impact craters, we propose that they formed by a particulate-dominated transient flow of water (< or = 26 minutes) that was released from buried ice-bearing deposits by impact-induced heating. Our interpretation is in accordance with the occurrence of pitted terrain on lobate deposits and crater floors. Pitted terrain is interpreted to result from the degassing of volatiles (Denevi et al., 2012). We also identify linear gully systems, which are morphologically distinct from the curvilinear systems, and are interpreted to form by dry flow of material. Craters containing curvilinear systems are clustered in two regions of Vesta's surface, whereas linear systems are evenly distributed. This indicates that the proposed buried ice-bearing deposits are likely localized in extent. Together with the newly expanded understanding of the distribution and behavior of water in the asteroid belt (e.g. Kueppers et al., 2014; Hsieh & Jewitt, 2006), our results support the new paradigm that there is a continuum of small bodies in the solar system with many intermediate states of hydration. The varied hydrologic processes that occur within this new paradigm suggest the evolution of our solar system is more complex than previously thought. JF - American Geophysical Union Fall Meeting AU - Scully, J E C AU - Russell, C T AU - Yin, A AU - Jaumann, R AU - Carey, E M AU - McSween, H Y, Jr AU - Castillo, Julie C AU - Raymond, C A AU - Reddy, V AU - Le Corre, L AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P51D EP - 3970 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1769963739?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Gullies+and+lobate+deposits+as+geomorphological+evidence+for+impact-induced+transient+water+flow+and+localized%2C+buried+ice-bearing+deposits+on+Vesta&rft.au=Scully%2C+J+E+C%3BRussell%2C+C+T%3BYin%2C+A%3BJaumann%2C+R%3BCarey%2C+E+M%3BMcSween%2C+H+Y%2C+Jr%3BCastillo%2C+Julie+C%3BRaymond%2C+C+A%3BReddy%2C+V%3BLe+Corre%2C+L%3BAnonymous&rft.aulast=Scully&rft.aufirst=J+E&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-03-03 N1 - CODEN - #07548 ER - TY - JOUR T1 - The lunar exosphere as seen from LADEE UVS AN - 1769963709; 2016-017830 AB - The Lunar Atmosphere and Dust Environment Explorer (LADEE) Ultraviolet Visible Spectrometer (UVS) began commissioning activities in orbit around the moon on October 16, 2013. Science observations began October 23, 2013 and continued until minutes prior to the planned disposal of the LADEE spacecraft on April 18, 2014 (UTC). Over the course of the mission the UVS instrument made a series of systematic observations, including lunar limb stares at both terminators and about local noon, targeted activities, including anti-sun sodium tail observations, north/south limb stares, solar extinction measurements, and instrument calibrations. Initial analysis of these observations have resulted in temporal and spatial mapping of key exosphere species, such as sodium and potassium, and the detection of several previously-undetected species. Sodium and potassium show variations in concentration across both a single lunation and longer semi-annual periods. These changes are likely due to a response to micro-meteoroidal and solar wind fluxes as well as spatial variations in surface composition. Tentative detections of Ti, Si, Mg, O, Al and He+ have been made. Observations in search of dust, including limb and occultation activities, have provided high signal-to-noise spectra that show variations in extinction and light scattering possibly due to exospheric dust. This talk will provide an overview of UVS results, with an emphasis on the sodium and potassium observations. JF - American Geophysical Union Fall Meeting AU - Colaprete, A AU - Wooden, D H AU - Cook, A AU - Elphic, R C AU - Sarantos, M AU - Vargo, K AU - Hermalyn, B AU - Stubbs, T J AU - Karcz, J AU - Shirley, M AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P21F EP - 04 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1769963709?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=The+lunar+exosphere+as+seen+from+LADEE+UVS&rft.au=Colaprete%2C+A%3BWooden%2C+D+H%3BCook%2C+A%3BElphic%2C+R+C%3BSarantos%2C+M%3BVargo%2C+K%3BHermalyn%2C+B%3BStubbs%2C+T+J%3BKarcz%2C+J%3BShirley%2C+M%3BAnonymous&rft.aulast=Colaprete&rft.aufirst=A&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-03-03 N1 - CODEN - #07548 ER - TY - JOUR T1 - Capturing evidence for past life in the Martian loess AN - 1769963707; 2016-017879 AB - Vast loess deposits in Europe and the US accumulated after the last glacial maxima (<20 kyrs). In Argentina, however, they gradually accumulated from dried riverbeds that carried sediments from the Andes over the last 12 myrs [1]. These 300m-thick loessoid deposits resemble the accumulations of unconformable deposits found on Mars, some exceeding 3km in thickness. While short-lived as surface materials on the Earth (e.g., <12 myrs in Argentina), they remain exposed for billions of years on Mars (since the late Noachian). Unlithified loessoid deposits represent a special target type affecting both crater excavation and melt generation. Craters as large as 20km in diameter may not reach the underlying "basement" (e.g., cratered highlands). Porous targets also result in greater amounts of impact melt derived from different levels [2, 3]. Moreover, melt breccias can be soft captured, buried, and trapped until re-exposed [4]. In Argentina, some folded vesicular glasses as old as 9.3 myrs contain flash-heated yet well-preserved biomatter (down to < 5 microns) including plant materials [5] and even partially vitrified cartilage fragments [6]. The entrained plant materials also contain organic relicts such as derivatives of chlorophyll. This biomatter becomes trapped as the melt is rolled and folded during excavation or emplacement. Exploratory impact experiments at the NASA Ames Vertical Gun Range simulated this process at a much smaller scale (5km/s at 45 deg impact angle). Fragments of wetted Pampas grass and tardigrades buried near the surface were entrained within small, twisted and folded glasses. Grass positioned uprange of the impact, however, survived intact within a projectile radius of the impact point. Consequently, the low impact speeds available in the experiments could be more than offset by an uprange location for a much higher speed impact. While plant material should not be expected, other primitive forms could be mixed within seams and folds within proximal impact melts. [1] Zarate, M. A. (2003), Quat. Sci. Revs. 22, p. 1987-2006; [2] Schultz, P. H. et al. (2004), EPSL, v. 219, 221-238; [3] Schultz, P. H. et al. (2006), MAPS, v. 41, 749-771; [4] Schultz and Mustard (2004), JGR 109, DOI: 10.1029/2002JE002025; [5] Schultz et al. (2014), Geology, 42, 515-518; [6] Harris and Schultz (2007), LPSC 38, #2306. JF - American Geophysical Union Fall Meeting AU - Schultz, P H AU - Harris, R S AU - Clemett, S J AU - Thomas-Keprta, K L AU - Zarate, M AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P24A EP - 03 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1769963707?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Capturing+evidence+for+past+life+in+the+Martian+loess&rft.au=Schultz%2C+P+H%3BHarris%2C+R+S%3BClemett%2C+S+J%3BThomas-Keprta%2C+K+L%3BZarate%2C+M%3BAnonymous&rft.aulast=Schultz&rft.aufirst=P&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-03-03 N1 - CODEN - #07548 ER - TY - JOUR T1 - Crater morphologies on Pluto and Charon; anticipating new horizons AN - 1769963702; 2016-017944 AB - Impact craters are among the few geologic features we have some confidence will be present in the Pluto/Charon system. Crater morphologies are important as tracers of thermal history (through the mechanism of viscous relaxation), and can be used to probe through icy crusts (in terms of excavating deeper layers as on Ganymede or penetrating through floating ice shells as on Europa). New Horizons will have the opportunity to examine crater morphologies on Pluto to resolutions <100 meters and on Charon to approximately 250 meters over significant areas. Stereo-derived topography maps are anticipated over 20-35% of each body. The first task will be to place the observed craters (assuming they are not deeply eroded) into Solar System context. Crater morphology on icy satellites is controlled primarily by surface gravity. Charon has similar surface gravity to the icy Saturnian satellites and we expect craters on Charon to resemble those seen by Cassini, where the dominant landform will be prominent central peaks. Pluto surface gravity is midway between Ganymede and Rhea. Triton, with similar surface gravity and internal composition to Pluto, is of no help due to the paucity of resolved craters there. This opens the possibility of observing landforms seen on Ganymede, such as central dome craters, palimpsests and perhaps even a multiring basin or two, albeit at larger diameters than we would see on Ganymede. Several issues complicate our rosy picture. A key unresolved concern is that impact velocities in the Pluto system are only a few km/s, in the low end of the hypervelocity range. Numerical models imply possible differences during excavation, producing deeper simple craters than on the icy satellites. Impacts occurring at velocities well below the mean (< 2km/s) might produce shallower craters, complicating the issue further. Whether such differences are real and are significant enough to be detected in our anticipated topographic data sets is unclear. Any viscous relaxation (driven by internal or modest tidal heating) or mass wasting erosion (by volatile redistribution) will also work to reduce crater depths on Pluto in different ways, but cratering onto the likely cold interior of Charon may provide a reference standard by which to evaluate modified craters on Pluto. JF - American Geophysical Union Fall Meeting AU - Schenk, P AU - Bray, V J AU - McKinnon, W B AU - White, O L AU - Moore, J M AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P33B EP - 4032 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1769963702?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Crater+morphologies+on+Pluto+and+Charon%3B+anticipating+new+horizons&rft.au=Schenk%2C+P%3BBray%2C+V+J%3BMcKinnon%2C+W+B%3BWhite%2C+O+L%3BMoore%2C+J+M%3BAnonymous&rft.aulast=Schenk&rft.aufirst=P&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=1532&rft.isbn=&rft.btitle=&rft.title=Geophysical+Journal+International&rft.issn=0956540X&rft_id=info:doi/10.1093%2Fgji%2Fggu123 LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-03-03 N1 - CODEN - #07548 ER - TY - JOUR T1 - The generation of surface-bound exospheres via electron-stimulated desorption (and related phenomena); results from Apollo samples and Hermian regolith simulants AN - 1769963697; 2016-017852 AB - The generation of surface-bound exospheres present around the Moon, Mercury and other airless rocky bodies are produced primarily by the interaction of micrometeoroid impacts and charged particles from the solar wind, and magnetospheres with those surfaces. While the study of the interactions of both micrometeoroids and ion sputtering are well investigated, the contributions arising from energetic electron interactions are typically less-well established. Observations from the Fast Imaging Plasma Spectrometer (FIPS), taken < 400 km from the surface, have shown a plasma cusp with energetic heavy ions (i.e. Na+- and O+-groups) for which the source has not been determined. However, the precipitation of keV electrons onto the surfaces of Mercury has recently been inferred from measurements using the X-Ray Spectrometer (XRS) instrument onboard the MESSENGER spacecraft observations of the night-side of Mercury. A newly developed global kinetic transport model suggests that electron-stimulated desorption (ESD), and possibly light ion stimulated desorption (ISD), can directly yield ions that can be transported and dynamically accelerated to the plasma cusp regions observed by FIPS. In addition, keV electrons and ions from the solar wind and Earth's magnetosphere frequently bombard with the lunar surface. Here, we present some of the most recent results from our ongoing work studying the effects of photon-stimulated desorption (PSD), ion-stimulated desorption (ISD) and implantation, as well as electron-stimulated desorption (ESD). Apollo samples collected from both the lunar highland and Mare regions, as well as simulants of the Mercury Regolith have been investigated. The temperature--(100-600 K) and energy-dependence (threshold--2 keV) of ESD time-of-flight (ToF) results will be presented for these materials along with some preliminary results from our group based on photon-desorption studies of water on lunar material, temperature-programmed desorption (TPD) studies of water covered regolith and dusts, as well as the effects of ion implantation/sputtering using keV H+ ions on ESD-ToF results. The implications of these results in the context of current observations will be discussed. JF - American Geophysical Union Fall Meeting AU - Bennett, C AU - Poston, M AU - McLain, J L AU - Orlando, T M AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P23C EP - 3997 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1769963697?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=The+generation+of+surface-bound+exospheres+via+electron-stimulated+desorption+%28and+related+phenomena%29%3B+results+from+Apollo+samples+and+Hermian+regolith+simulants&rft.au=Bennett%2C+C%3BPoston%2C+M%3BMcLain%2C+J+L%3BOrlando%2C+T+M%3BAnonymous&rft.aulast=Bennett&rft.aufirst=C&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-03-03 N1 - CODEN - #07548 ER - TY - JOUR T1 - Fresh shallow valleys (FSVs) in northern Arabia terra, Mars AN - 1769963692; 2016-017938 AB - Fresh Shallow Valleys (FSVs) on Mars are part of a growing inventory of post-Noachian landforms that may be related to late, widespread aqueous activity that occurred during a period once thought to be less favorable for precipitation and runoff. Constraining the source, magnitude, timing and duration of FSVs will provide insight into the mechanism and extent of fluvial activity on Mars and the geologic and climatic environments in which they formed. Unlike the older Noachian-Hesperian valleys that are characterized by integrated, dissected and degraded networks that cover large spatial extents, FSVs are typically narrow, short or discontinuous valleys with low drainage densities. They are generally incised no more than a few decameters, slightly degraded at multi-meter scales, and cluster in the mid-latitudes (35-50 degrees in both hemispheres). A high concentration of FSVs occurs in northern Arabia Terra ( approximately 33 degrees N, 8 degrees E), a Noachian-aged landscape characterized by broad, irregular depressions. Many of the FSVs in this region are 150+ km long and some appear to cross depressions that were likely filled with ice or water at the time of formation. Examples of broad, flat floored FSVs with incised channels could either indicate a complex history of a single flow event or multiple flow events. The occurrence of "pollywogs," fairly fresh, small (typically 2-10 km in diameter) craters with a single channel extending from the rim outward, implies overflow of the crater, the presence of a deep lake and the involvement of artesian groundwater flow. Roughly 25% of the FSVs in our northern Arabia Terra study region occur on relatively fresh crater ejecta, which may be related to formation age, topography, surface materials and (or) substrate. Ejecta with dense concentrations of FSVs average 25.5 km in diameter, have more degraded crater interiors, and well developed petal-like ejecta. Ejecta with sparse or no FSVs have radial ejecta with less distinct petals and are associated with smaller craters (16 km and 8 km in diameter, respectively) that have less degraded crater interiors. Crater statistics suggest ejecta with high concentrations of FSVs are relatively older than ejecta with sparse or no FSVs. The crater statistics also suggest the valleys formed in the mid-Hesperian to early Amazonian, coeval with the formation of large alluvial fans. JF - American Geophysical Union Fall Meeting AU - Wilson, S A AU - Howard, A D AU - Moore, J M AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P33A EP - 4026 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1769963692?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Fresh+shallow+valleys+%28FSVs%29+in+northern+Arabia+terra%2C+Mars&rft.au=Wilson%2C+S+A%3BHoward%2C+A+D%3BMoore%2C+J+M%3BAnonymous&rft.aulast=Wilson&rft.aufirst=S&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-03-03 N1 - CODEN - #07548 ER - TY - JOUR T1 - Goldstone radar evidence for short-axis mode non-principal axis rotation of near-Earth asteroid (214869) 2007 PA8 AN - 1769963679; 2016-017887 AB - We report Goldstone radar (8560 MHz, 3.5 cm) observations and shape and spin state modeling of near-Earth asteroid (214869) 2007 PA8. We observed 2007 PA8 on 16 days between Oct 16-Nov 13, 2012 when the asteroid was within 0.14 AU of Earth. Closest approach was on Nov 5 at a distance of 0.043 AU (17 lunar distances). Images obtained with Goldstone's new chirp system achieved range resolution as fine as 3.75 m, placing thousands of pixels on the asteroid's surface and revealing that 2007 PA8 is an elongated, asymmetric object. Surface features include angularities, multiple facets, and a concavity approximately several hundred meters in diameter. We used the Shape software [1, 2] to estimate the asteroid's 3D shape and spin state. The initial shape of the asteroid was parameterized as an ovoid with dimensions of 1.85 kmx1.25 kmx1.20 km in principal axis (PA) rotation with rotational rates of 80-100 deg/day to match the progression of features visible in the images. This yielded two candidate spin states: one near the south ecliptic pole and another near ecliptic longitude and latitude of (270, +17) deg. However, PA spin state models predict that images from Oct 31 and Nov 11 should be very similar, but the images on those two days appear dramatically different. As a result, we expanded the spin state search to include non-principal axis (NPA) rotation. The best fit was obtained with NPA rotation in short-axis mode with an average period of precession by the long axis around the angular momentum vector of 4.25 days and an oscillatory period around the long axis of 20.16 days. The amplitude of rolling around the long axis is 42 deg. The angular momentum vector points within 10 deg of ecliptic longitude and latitude of (273, +16) deg. 2007 PA8 is only the second confirmed short-axis mode NPA rotator found in the near-Earth asteroid population, after (99942) Apophis [3]. References: [1] Hudson, S., 1993. Remote Sens. Rev. 8, 195-203. [2] Magri, C. et al., 2007. Icarus 186, 152-177. [3] Pravec et al., 2014. Icarus 233, 48-60. JF - American Geophysical Union Fall Meeting AU - Brozovic, M AU - Benner, L AU - Magri, C AU - Busch, M AU - Scheeres, D J AU - Giorgini, J D AU - Reddy, V AU - Hicks, M D AU - Jao, J S AU - Lee, C G AU - Snedeker, L G AU - Silva, M A AU - Slade, M A AU - Lawrence, K J AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P31A EP - 3971 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1769963679?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Goldstone+radar+evidence+for+short-axis+mode+non-principal+axis+rotation+of+near-Earth+asteroid+%28214869%29+2007+PA8&rft.au=Brozovic%2C+M%3BBenner%2C+L%3BMagri%2C+C%3BBusch%2C+M%3BScheeres%2C+D+J%3BGiorgini%2C+J+D%3BReddy%2C+V%3BHicks%2C+M+D%3BJao%2C+J+S%3BLee%2C+C+G%3BSnedeker%2C+L+G%3BSilva%2C+M+A%3BSlade%2C+M+A%3BLawrence%2C+K+J%3BAnonymous&rft.aulast=Brozovic&rft.aufirst=M&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-03-03 N1 - CODEN - #07548 ER - TY - JOUR T1 - The nitrate/perchlorate ratio on Mars as an indicator for habitability AN - 1769963658; 2016-017908 AB - Discovery of indigenous martian nitrogen in Mars surface materials has important implications for habitability and the potential development of a nitrogen cycle at some point in martian history. The Sample Analysis at Mars (SAM) instrument suite on the Mars Science Laboratory (MSL) Curiosity Rover detected evolved nitric oxide (NO) gas during pyrolysis of scooped aeolian sediments and drilled mudstone acquired in Gale Crater. The detection of NO suggests an indigenous source of fixed nitrogen, and may indicate a mineralogical sink for atmospheric N2 in the form of nitrate. The ratio of nitrate to oxychlorine species (e.g. perchlorate) may provide insight into the extent of development of a nitrogen cycle on Mars. Nitrate and perchlorate on Earth are geochemically related in arid environments such as the Atacama Desert and the Dry Valleys of Antarctica due to their similar mobilities and deposition mechanisms [1,2]. Here, low NO3-/ClO4- molar ratios ( approximately 1000) dominate, in comparison to other places on Earth, where the main nitrate source is biological fixation of N2 to NO3-, and there is no corresponding biological source of perchlorate, resulting in much higher NO3-/ClO4- molar ratios ( approximately 10,000). The NO3-/ClO4- molar ratio is estimated to be approximately 0.05 on Mars based on SAM measurements at Gale Crater [3]. The possibility exists that perchlorate brines could leach and increase nitrate concentrations at depth, increasing the martian NO3-/ClO4- ratio in the subsurface. However, it is unknown whether terrestrial NO3-/ClO4- molar ratios could be achieved by this mechanism. Nevertheless, the low NO3-/ClO4- the ratio detected by SAM suggests that N fixation to nitrate on Mars, whether biologically mediated or abiotic, was extremely limited compared to the potentially ongoing abiotic formation and deposition of oxychlorine species on the martian surface. [1] Kounaves, S. P. et al., Discovery of natural perchlorate in the Antarctic dry valleys and its global implications. ES&T44, No. 7 (2010): 2360-2364. [2] Lybrand, R. A., et al., The geochemical associations of nitrate and naturally formed perchlorate in the Mojave Desert, California, USA. GCA104 (2013): 136-147. [3] Ming, D. W. et al. Volatile and organic compositions of sedimentary rocks in Yellowknife Bay, Gale crater, Mars. Science 343, no. 6169 (2014): 1245267. JF - American Geophysical Union Fall Meeting AU - Stern, Jennifer C AU - Sutter, B AU - McKay, C P AU - Navarro-Gonzalez, R AU - Freissinet, Caroline AU - Conrad, P G AU - Mahaffy, P R AU - Archer, P D, Jr AU - Ming, D W AU - Martin-Torres, J AU - Zorzano, M P AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P31D EP - 4015 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1769963658?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=The+nitrate%2Fperchlorate+ratio+on+Mars+as+an+indicator+for+habitability&rft.au=Stern%2C+Jennifer+C%3BSutter%2C+B%3BMcKay%2C+C+P%3BNavarro-Gonzalez%2C+R%3BFreissinet%2C+Caroline%3BConrad%2C+P+G%3BMahaffy%2C+P+R%3BArcher%2C+P+D%2C+Jr%3BMing%2C+D+W%3BMartin-Torres%2C+J%3BZorzano%2C+M+P%3BAnonymous&rft.aulast=Stern&rft.aufirst=Jennifer&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-03-03 N1 - CODEN - #07548 ER - TY - JOUR T1 - Evolution of Titan's seas and lakes during northern spring AN - 1769963649; 2016-017833 AB - Titan is the only body in the solar system, besides Earth, to have stable liquid seas at its surface [1]. The three main seas, known as Kraken Mare, Ligeia Mare, and Punga Mare are located at the North Pole where they cover a surface area of 500,000-, 126,000-, and 50,000-km2, respectively. In addition, several hundreds of small lakes are present, raising the questions of their relationships with the large seas. These hydrocarbon lakes and seas can be better imaged at optical wavelengths as the season moves towards summer solstice. At the same time, the North Pole area is receiving more solar light, which modifies the atmospheric circulation. Global Circulation Models (GCMs) predict stronger winds, more evaporation, and formation of methane clouds [2]. The Visual and Infrared Mapping Spectrometer (VIMS) has observed the North Pole area during several high inclined flybys. Mosaics in seven infrared atmospheric windows have been constructed. Several units can be distinguished by their surface albedo. The 5-micron bright unit has been interpreted as evaporitic material based on its location relative to the lakes and seas [3]. The spectral characteristics cannot be matched by a simple mixture of water ice and "typical Titan organic material" known as tholins. The composition of these different units is therefore still enigmatic. In addition, some of the spectral characteristics may be related to the texture of the units. The few passes over the North Pole have allowed the VIMS team to image some places several times looking for changes on the surface or/and in the lower atmosphere. Although GCMs predict evaporation of the seas and lakes and the formation of methane clouds [2], neither changes in the shorelines, nor clouds have been identified. Very recent specular reflection observations suggest the formation of waves on Punga [4], and therefore more active winds. In addition, the VIMS recently observed a brightening of the area between Punga, Kraken and Ligeia. Whether this change is related to surface processes or evaporation of the seas is being investigated. This work has been performed at the Jet Propulsion Laboratory, California Institute of Technology, under contract to NASA. [1] Stofan, E. R. et al., Science, 2007 ; [2] Schneider, T. et al., Nature, 2012 ; [3] MacKenzie, S. M. et al., Icarus, in press; [4] Barnes, J. W., Ap. J., 2014. JF - American Geophysical Union Fall Meeting AU - Sotin, Christophe AU - Lawrence, K J AU - Le Mouelic, S AU - MacKenzie, S AU - Barnes, J W AU - Brown, R H AU - Cornet, T AU - Rodriguez, S AU - Baines, K H AU - Buratti, Bonnie J AU - Clark, R N AU - Nicholson, P D AU - Soderblom, J M AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P22A EP - 03 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1769963649?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Evolution+of+Titan%27s+seas+and+lakes+during+northern+spring&rft.au=Sotin%2C+Christophe%3BLawrence%2C+K+J%3BLe+Mouelic%2C+S%3BMacKenzie%2C+S%3BBarnes%2C+J+W%3BBrown%2C+R+H%3BCornet%2C+T%3BRodriguez%2C+S%3BBaines%2C+K+H%3BBuratti%2C+Bonnie+J%3BClark%2C+R+N%3BNicholson%2C+P+D%3BSoderblom%2C+J+M%3BAnonymous&rft.aulast=Lau&rft.aufirst=William&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-03-03 N1 - CODEN - #07548 ER - TY - JOUR T1 - Modeling radar wave propagation through Comet 67p/Churyumov-Gerasimenko AN - 1769963633; 2016-018038 AB - The Comet Nucleus Sounding Experiment by Radiowave Transmission (CONSERT) onboard the Rosetta mission, as well as future cometary mission concepts, are planned to explore the inner structure of comets to complement our knowledge on the evolution of these small bodies that is currently only driven by surficial remote sensing measurements. An essential step in understanding the performance and the science return of current and future sounding experiments is an accurate understanding of the dielectric properties of comets and how they translate to the different physical, chemical and structural hypotheses of these bodies. To help constrain the ambiguities associated with this wide parametric space, we build eight parametric 3D dielectric models of the comet nucleus representing different structural and physical formation hypotheses, and we simulated the propagation of radar waves through each nucleus model using the finite difference time domain (FDTD) method. We extrapolated the shape model from the first Rosetta Navigation Camera images, while the different internal structures of each model are representative of existing theories of comet nuclei structures. The complex dielectric constants used in our models have been generated using mixing laws for a porous mixture of ice and meteoritic dust. Our simulations were performed at a lower frequency with respect to the central frequency of the CONSERT instrument due to computational memory limitations. The lower resolution obtained will still provide a sufficient and close approximation of the final experiment, given that the dielectric properties of the nucleus' materials are non-dispersive. Our results suggest that each model of the comet nucleus' interior structure produces a different radar signature in both the transmitted and reflected signals. In particular we note that scattering from inner-structure complexity compromises the visibility of the comet backside. Our simulation suggests that we can discern the different formation hypotheses with their associated internal structures for Comet 67P using the CONSERT experiment. Our results will support the CONSERT data interpretations to determine whether Comet 67P was generated by the aggregation of icy rubble, whether it presents a layered inner structure, and also whether it is a two-body system. JF - American Geophysical Union Fall Meeting AU - Scabbia, G AU - Heggy, E AU - Lasue, J AU - Kofman, W W AU - Palmer, E M AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P51C EP - 3965 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1769963633?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Modeling+radar+wave+propagation+through+Comet+67p%2FChuryumov-Gerasimenko&rft.au=Scabbia%2C+G%3BHeggy%2C+E%3BLasue%2C+J%3BKofman%2C+W+W%3BPalmer%2C+E+M%3BAnonymous&rft.aulast=Scabbia&rft.aufirst=G&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-03-03 N1 - CODEN - #07548 ER - TY - JOUR T1 - Annual and longer sedimentary rhythms of the organic rock record of Titan's circumpolar seas and lakes AN - 1769963593; 2016-017865 AB - Seasonality and phase equilibrium in Titan's lakes and seas will result in predictable sedimentary processes, deposits, and landforms. Calculated using CRYOCHEM, liquids on Titan should exhibit a counter-intuitive behavior where density increases with temperature but decreases with pressure, unless the temperature falls below 89.6 K. For warmer temperatures, the surface liquid of seas should flow toward the hottest spot; return flow may occur beneath the surface. Methane-rich liquid flowing southward from one interconnected northern sea to another will evaporate methane and concentrate ethane and other heavy hydrocarbons. In the north polar and circumpolar regions, a south-flowing river entering a sea from cold northerly uplands will inject a buoyant plume of low-density methane-rich liquid into the sea, unless the liquid at the inlet is heavily charged with dense solid phases or unless the lake is colder than 89.6 K. Generally north of (colder than) the seasonally shifting 89.6K transition (possible during the winter precisely when river discharges are high), a different behavior exists, whereby cold and methane-rich liquid forms denser liquids and flows across the bottom of the sea-possibly forming sub-sea channels as observed at Ligeia Mare. If the river carries clastic sediment denser than the methane liquid, the solids will undergo Stokes settling of the coarser fractions during periods of high river discharge, leaving the finest clastic fraction to undergo slow pelagic sedimentation throughout the year. From late spring to late summer, methane undergoes net evaporation from the sea, and solid organics that were saturated during the winter are likely to precipitate once warm weather starts. Hence, varves in Titan's seas are apt to consist of annual cycles of (1) winter: coarse clastics, (2) all dry season: fine-grained clastics, and (3) summer: evaporites. As Titan undergoes milankovic type variations in rotational obliquity and Saturn's orbital eccentricity, the circumpolar climate and annual range of the seasonal cycle will change, forcing responses in rainfall rates, erosion rates, and the composition of lakes and seas. Thus, sediment deposit sequences-layered organic rock strata-in the circumpolar regions will record past climate changes due to long-term cycles as well as annual periodicity. JF - American Geophysical Union Fall Meeting AU - Kargel, Jeffrey S AU - Tan, S P AU - Marion, G M AU - Jennings, D E AU - Mastrogiuseppe, Marco AU - Adidharma, H AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P23D EP - 4017 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1769963593?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Annual+and+longer+sedimentary+rhythms+of+the+organic+rock+record+of+Titan%27s+circumpolar+seas+and+lakes&rft.au=Kargel%2C+Jeffrey+S%3BTan%2C+S+P%3BMarion%2C+G+M%3BJennings%2C+D+E%3BMastrogiuseppe%2C+Marco%3BAdidharma%2C+H%3BAnonymous&rft.aulast=Kargel&rft.aufirst=Jeffrey&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-03-03 N1 - CODEN - #07548 ER - TY - JOUR T1 - Possible global distribution of reduced carbon in surface sediments on Mars; evidence from volatiles released from the rocknest eolian drift, Gale Crater AN - 1769963589; 2016-017873 AB - The Rocknest eolian drift sediments were pyrolyzed in the Science Analysis at Mars (SAM) instrument on the Curiosity rover, yielding a small, discrete peak of C1-C3 volatiles, which were detected by direct mass spectrometry. This peak was observed to have a maximum intensity at approximately 820 degrees C in all four evolved gas analysis (EGA) experiments of the scooped and sieved (to < or = 150 mm) Rocknest sediment, though it is strongest in the second and third analyses. It was not observed in any blanks or subsequent samples of drilled rocks. Estimates of the total reduced carbon concentration are 16 + or - 4 ppm carbon by weight in the sample. Evolved gas analysis does not support definitive identification of trace molecules in gas mixtures, however the masses that define the observed peak are consistent with primarily CO2 (oxidized carbon phase; 9 + or - 2 ppmw carbon ) and CO, with 1-2 orders of magnitude less C1-3 hydrocarbons. The observed mass composition and temperature of evolution for the Rocknest-820 degrees C peak are suggestive of reduced carbon in a refractory state within the sample and inconsistent with reaction products that one might expect from terrestrial organic materials that are part of SAM's background. These carbon volatiles are most likely released from inclusions or decrepitating minerals and this entrapment may be responsible for their preservation after significant exposure to ionizing radiation and mechanical weathering. Detection of these volatiles indicates reduced carbon phases are present in some Martian surface sediment. Carbon concentrations for Rocknest are within the range reported for magmatic carbon in Martian meteorites and the composition is comparable to volatiles released from terrestrial basaltic glasses. The Rocknest drift deposit is considered representative of the global dust on Mars. The very-high-temperature volatile release from Rocknest implies a possible global distribution of reduced carbon on the Martian surface. The National Aeronautics and Space Administration (NASA) supported the research described here. JF - American Geophysical Union Fall Meeting AU - Eigenbrode, J L AU - Steele, A AU - Franz, H AU - Sutter, B AU - Mahaffy, P R AU - Conrad, P G AU - McAdam, A AU - Summons, R E AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P23E EP - 04 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1769963589?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=47th+American+Geophysical+Union+Fall+Meeting&rft.atitle=NASA+COAST+and+OCEANIA+Airborne+Missions+Support+Ecosystem+and+Water+Quality+Research+in+the+Coastal+Zone&rft.au=Guild%2C+Liane%3BKudela%2C+Raphael%3BHooker%2C+Stanford%3BMorrow%2C+John%3BRussell%2C+Philip%3BPalacios%2C+Sherry%3BLivingston%2C+John%3BNegrey%2C+Kendra%3BTorres-Perez%2C+Juan%3BBroughton%2C+Jennifer&rft.aulast=Guild&rft.aufirst=Liane&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-03-03 N1 - CODEN - #07548 ER - TY - JOUR T1 - Surface composition and physical mixture state of the regoliths of outer solar system satellites; the role of scattering and absorption by the non-ice components and implications for Rayleigh absorption and Rayleigh scattering AN - 1769963575; 2016-018017 AB - Many outer Solar System satellites have surfaces dominated by water ice and a mysterious material(s) causing strong visible to ultraviolet absorption along with trace other compounds with infrared absorptions, including CO2 and organics. Various mechanisms have been proposed for the UV absorber, including tholins, iron oxides, and nano-sized metallic iron particles (e.g. see Clark et al., 2012, Icarus v218 p831, and references therein). We have constructed extensive laboratory analog measurements and radiative transfer modeling of the materials and scattering conditions that can contribute to the optical properties seen on outer Solar System satellites. We have successfully modeled Rayleigh absorption and Rayleigh scattering to produce spectral shapes typical of those seen in spectra of icy Solar System satellites, including those in the Saturn system observed with the Cassini UVIS and VIMS instruments. While it is easy to create these absorptions with radiative transfer modeling, it has been more difficult to do with laboratory analogs. We are finding that laboratory analogs refine and restricts the possible mixing states of the UV absorber in icy satellite surfaces. We have found that just because a particle is highly absorbing, as in metallic iron, if the particle is not embedded in another matrix, scattering will dominate over absorption and Rayleigh absorption will not be observed. Further, the closer the indices of refraction match between the absorbing particle and the matrix, there will be less scattering and more absorption will occur. But we have also found this to be true with other absorbing material, like Tholins. It is very difficult to obtain the very low reflectances observed in the UV in icy satellite spectra using traditional intimate mixtures, as scattering and first surface reflections contribute significantly to the reflectance. The solution, both from radiative transfer modeling and laboratory analogs point to embedded absorbing materials. For example, nano-phase metallic iron embedded in a less absorbing silicate matrix as meteoritic dust infall onto satellite surfaces is one explanation. An alternative would be tholins embedded in the ice. Spectral features should be able to distinguish between these and other possibilities and will be explored. JF - American Geophysical Union Fall Meeting AU - Clark, R N AU - Perlman, Z S AU - Pearson, Neil AU - Hendrix, A R AU - Cuzzi, Jeffrey AU - Cruikshank, Dale P AU - Bradley, E T AU - Filacchione, Gianrico AU - Nicholson, P D AU - Hedman, M M AU - Brown, R H AU - Buratti, Bonnie J AU - Baines, K H AU - Sotin, Christophe AU - Nelson, R M AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P43B EP - 3988 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1769963575?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Surface+composition+and+physical+mixture+state+of+the+regoliths+of+outer+solar+system+satellites%3B+the+role+of+scattering+and+absorption+by+the+non-ice+components+and+implications+for+Rayleigh+absorption+and+Rayleigh+scattering&rft.au=Clark%2C+R+N%3BPerlman%2C+Z+S%3BPearson%2C+Neil%3BHendrix%2C+A+R%3BCuzzi%2C+Jeffrey%3BCruikshank%2C+Dale+P%3BBradley%2C+E+T%3BFilacchione%2C+Gianrico%3BNicholson%2C+P+D%3BHedman%2C+M+M%3BBrown%2C+R+H%3BBuratti%2C+Bonnie+J%3BBaines%2C+K+H%3BSotin%2C+Christophe%3BNelson%2C+R+M%3BAnonymous&rft.aulast=Clark&rft.aufirst=R&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-03-03 N1 - CODEN - #07548 ER - TY - JOUR T1 - The detectability of heat flow signatures on Europa AN - 1769963560; 2016-018097 AB - Europa is planetary body with a young, tectonically active ice shell and a subsurface liquid water ocean. These characteristics make it one of the most promising places in the solar system to search for extant life beyond Earth. Conventional wisdom dictates that temperatures at the surface of Europa's ice shell are not expected to exceed 130K, which is well below the stability temperature of liquid water or brines. However, the regional or local-scale surface temperatures on Europa could be elevated due to regional or local scale heat flow anomalies as manifested by regional variations in tidal heating, recent cracks in the ice shell, or episodic eruptive plumes. Using a sophisticated ray-tracing thermal model developed for the moon and Mercury, we have explored the potential detectability of a range of heat flow anomalies on Europa from remote sensing measurements of the thermal emission and solar reflection from the Europa's surface. We find that the thermal emission signatures of potential heat flow anomalies can be differentiated from those caused by topography, roughness, exposed ice blocks and Jupiter shine. We further quantify the requirements for accuracy and signal-to-noise, as well as the requirements, for spatial, spectral and diurnal coverage, and conclude that heat flow signatures from sites of recent plume activity should be readily detectable, even if they are not currently active. JF - American Geophysical Union Fall Meeting AU - Paige, D A AU - Hayne, P O AU - Spencer, J R AU - Greenhagen, B T AU - Bennett, K A AU - Mellon, M T AU - Bandfield, J L AU - Aharonson, O AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P53B EP - 4010 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1769963560?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=The+detectability+of+heat+flow+signatures+on+Europa&rft.au=Paige%2C+D+A%3BHayne%2C+P+O%3BSpencer%2C+J+R%3BGreenhagen%2C+B+T%3BBennett%2C+K+A%3BMellon%2C+M+T%3BBandfield%2C+J+L%3BAharonson%2C+O%3BAnonymous&rft.aulast=Paige&rft.aufirst=D&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-03-03 N1 - CODEN - #07548 ER - TY - JOUR T1 - A laser altimeter for a planetary flyby mission AN - 1769963558; 2016-017982 AB - Several planetary missions are contemplated as flybys of planets, asteroids, and natural satellites. In many cases the option to orbit the body is impractical and observations during one or many flybys represent the only reasonable option. A laser altimeter provides measurements of topography and shape, surface roughness, and normal reflectivity at the laser wavelength and has been shown to be very effective at Mars, Mercury and the Moon when in orbit about the body and also when in proximity of an asteroid. But flyby missions are less able to provide the coverage and uniformity of the data being acquired by the instruments on the s/c because of the variation in range of the spacecraft from the body during a flyby. To address this problem, we have modified the design of our single beam Mercury Laser Altimeter (MLA), currently collecting observations on the MESSENGER mission, to provide an operating range of several thousand kilometers by increasing the output from the laser, providing a variable pulse-rate while maintaining constant electrical power, that can provide quasi-contiguous altimeter pixels during the flyby, and by storing the complete output from the detector. This approach will provide accurate topographic and shape data and enable improved orbit determination of the spacecraft by the use of orbital crossovers with minimal interpolation errors between measurements. The mass, power and data rate of the instrument is compatible with typical constraints in planetary missions. JF - American Geophysical Union Fall Meeting AU - Smith, David E AU - Zuber, M T AU - Sun, Xiaoli AU - Cavanaugh, John F AU - Neumann, G A AU - Mazarico, E AU - Genova, Antonio AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P41D EP - 3962 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1769963558?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=A+laser+altimeter+for+a+planetary+flyby+mission&rft.au=Smith%2C+David+E%3BZuber%2C+M+T%3BSun%2C+Xiaoli%3BCavanaugh%2C+John+F%3BNeumann%2C+G+A%3BMazarico%2C+E%3BGenova%2C+Antonio%3BAnonymous&rft.aulast=Smith&rft.aufirst=David&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-03-03 N1 - CODEN - #07548 ER - TY - JOUR T1 - Determining firn compaction rates using repeat-track radar surveys in West Antarctica and Greenland AN - 1769963534; 2016-017695 AB - Measurements of surface elevation change must be properly partitioned between thickness changes from firn versus ice processes to determine the actual mass change because of the density difference between firn and ice. While ice dynamics controls changes in the ice column, fluctuations in both the snow accumulation and firn compaction rates result in variations in the firn column thickness. Several recent studies using both ground-based and airborne radar have greatly improved our understanding of the spatiotemporal variations in the accumulation rate. On the other hand, because of the difficulty in measuring firn compaction rates, the number of measurements remains quite low and the coverage is very sparse. Here, we present measurements of the firn compaction rate using the Center for Remote Sensing of Ice Sheets snow radar data from NASA's Operation IceBridge repeat-track surveys. To measure firn compaction rates from the aerial survey we first measure the depths to various horizons in the firn column. In the subsequent survey, we measure the depths to the same firn horizons but must remove the additional thickness from accumulated snow. To account for the additional accumulation, we measure the thickness to the buried horizon that represents the surface from the first survey. The change in thickness between the initial surface and the radar horizons provides total compaction and when divided by the time interval between surveys, provides the compaction rate. Specifically, we measure the spatiotemporal variations in the firn compaction rate in the Thwaites Glacier catchment area between 2009 and 2011. In addition, we present newly derived compaction rates from the dry-snow zone of Greenland. We also discuss the limitations of the method resulting from (1) the vertical resolution of the radar system, (2) colocation errors, (3) the dependence of radar wave speed on firn density, which varies in both space and time, and (4) measuring to a horizon of constant age rather than depth. JF - American Geophysical Union Fall Meeting AU - Medley, B AU - Ligtenberg, S AU - Kuipers Munneke, P AU - Joughin, Ian R AU - van den Broeke, M R AU - Gogineni, S AU - Nowicki, Sophie AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract NS34A EP - 07 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1769963534?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Determining+firn+compaction+rates+using+repeat-track+radar+surveys+in+West+Antarctica+and+Greenland&rft.au=Medley%2C+B%3BLigtenberg%2C+S%3BKuipers+Munneke%2C+P%3BJoughin%2C+Ian+R%3Bvan+den+Broeke%2C+M+R%3BGogineni%2C+S%3BNowicki%2C+Sophie%3BAnonymous&rft.aulast=Medley&rft.aufirst=B&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-03-03 N1 - CODEN - #07548 ER - TY - JOUR T1 - The Whipple mission; exploring the Kuiper Belt and the Oort Cloud AN - 1769963518; 2016-018047 AB - Whipple will characterize the small body populations of the Kuiper Belt and the Oort Cloud with a blind occultation survey, detecting objects when they briefly ( approximately 1 second) interrupt the light from background stars, allowing the detection of much more distant and/or smaller objects than can be seen in reflected sunlight. Whipple will reach much deeper into the unexplored frontier of the outer solar system than any other mission, current or proposed. Whipple will look back to the dawn of the solar system by discovering its most remote bodies where primordial processes left their imprint. Specifically, Whipple will monitor large numbers of stars at high cadences ( approximately 12,000 stars at 20 Hz to examine Kuiper Belt events; as many as approximately 36,000 stars at 5 Hz to explore deep into the Oort Cloud, where events are less frequent). Analysis of the detected events will allow us to determine the size spectrum of bodies in the Kuiper Belt with radii as small as approximately 1 km. This will allow the testing of models of the growth and later collisional erosion of planetesimals in the early solar system. Whipple will explore the Oort Cloud, detecting objects as far out as approximately 10,000 AU. This will be the first direct exploration of the Oort Cloud since the original hypothesis of 1950. Whipple is a Discovery class mission that will be proposed to NASA in response to the 2014 Announcement of Opportunity. The mission is being developed jointly by the Smithsonian Astrophysical Observatory, Jet Propulsion Laboratories, and Ball Aerospace & Technologies, with telescope optics from L-3 Integrated Optical Systems. JF - American Geophysical Union Fall Meeting AU - Alcock, C AU - Brown, M E AU - Gauron, T AU - Heneghan, C AU - Holman, M J AU - Kenter, A AU - Kraft, R AU - Lee, R AU - Livingston, J AU - McGuire, J J AU - Murray, S S AU - Murray-Clay, R AU - Nulsen, P AU - Payne, M J AU - Schlichting, H AU - Trangsrud, A AU - Vrtilek, J AU - Werner, M AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P51D EP - 3977 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1769963518?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=The+Whipple+mission%3B+exploring+the+Kuiper+Belt+and+the+Oort+Cloud&rft.au=Alcock%2C+C%3BBrown%2C+M+E%3BGauron%2C+T%3BHeneghan%2C+C%3BHolman%2C+M+J%3BKenter%2C+A%3BKraft%2C+R%3BLee%2C+R%3BLivingston%2C+J%3BMcGuire%2C+J+J%3BMurray%2C+S+S%3BMurray-Clay%2C+R%3BNulsen%2C+P%3BPayne%2C+M+J%3BSchlichting%2C+H%3BTrangsrud%2C+A%3BVrtilek%2C+J%3BWerner%2C+M%3BAnonymous&rft.aulast=Alcock&rft.aufirst=C&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-03-03 N1 - CODEN - #07548 ER - TY - JOUR T1 - Crater relaxation and heat flow in the Saturnian system, and anticipation of new horizons observations at the Pluto-Charon system AN - 1769963516; 2016-018018 AB - Evidence for relaxation of impact crater topography has been observed on many icy satellites, including those of Saturn, and the magnitude of relaxation can be related to past heat flow. We have used stereo- and photoclinometry-derived global digital elevation models (DEMs) of the surfaces of eight Saturnian satellites that we have generated from Cassini data to obtain depth and diameter measurements for more than 500 craters. We have previously performed relaxation simulations to determine what heat flow magnitudes and durations are necessary to achieve the current morphologies of certain relaxed and unrelaxed craters on Rhea and Iapetus (White et al., 2013). Combined with age estimates based on crater counting, we found that Iapetus has not experienced heat flows above radiogenic levels since formation of its basins, but that Rhea appears to have undergone a period of global elevated heat flow reaching 20-30 mW m (super -2) that caused the relaxation of its largest impact basins. We have since turned our attention to Dione and Tethys, two satellites that show a more complex history of relaxation across their surfaces than either Rhea or Iapetus, with some areas showing extensive relaxation across a wide range of crater diameters, and other areas showing relatively little relaxation. Such a distribution would indicate a history of strongly differential heat flow across these satellites. New simulations of crater relaxation and associated heat flow on these satellites using crater profiles measured from our DEMs, in conjunction with new crater age estimates for the basins, allow us to map the history of heat flow variation across their surfaces. The results suggest that Tethys and especially Dione have been geologically active in their pasts, and that both may represent geologically less evolved cousins of Enceladus. We also consider these results in the context of the upcoming New Horizons encounter with Pluto and Charon in 2015. These worlds are comparable to the icy satellites of Saturn, Uranus and Neptune with respect to their size, ice-rock ratio and degree of differentiation, but different in that they do not orbit, and therefore are not gravitationally influenced by, a giant planet. These factors must be considered when interpreting the morphologies and thermal histories of impact craters on Pluto and Charon. JF - American Geophysical Union Fall Meeting AU - White, Oliver L AU - Schenk, P AU - Dombard, A J AU - Moore, J M AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P43B EP - 3990 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1769963516?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Crater+relaxation+and+heat+flow+in+the+Saturnian+system%2C+and+anticipation+of+new+horizons+observations+at+the+Pluto-Charon+system&rft.au=White%2C+Oliver+L%3BSchenk%2C+P%3BDombard%2C+A+J%3BMoore%2C+J+M%3BAnonymous&rft.aulast=White&rft.aufirst=Oliver&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-03-03 N1 - CODEN - #07548 ER - TY - JOUR T1 - Slopes from photoclinometry for the Mars InSight landing site selection process AN - 1769963510; 2016-017979 AB - Evaluating meter-scale slopes on the Martian surface continues to be an important activity for ascertaining the safety of potential landing sites and for characterizing terrains and their formation and modification processes. The Mars InSight lander is targeting a landing site in Elysium Planitia and the application of the point photoclinometry algorithm that correctly estimated the slope parameters for MER (Beyer et al., 2003) and for MSL (Beyer and Kirk, 2012) is also being applied to HiRISE imagery within the potential landing ellipses being considered. This allows rapid evaluation of slope parameters and also provides a consistency check with terrain models derived from stereo data. The largest source of error in the photoclinometry estimates of slope is the value of the atmospheric haze to subtract for each image. When a stereo-derived terrain model (either from HiRISE or CTX) is present, the slope statistics from that terrain model are used to help "tune" the photoclinometry-derived slopes for images that overlap that terrain model. In this way better slope data can be extrapolated into nearby regions than the photoclinometry technique alone would be able to accomplish. JF - American Geophysical Union Fall Meeting AU - Beyer, R A AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P41D EP - 3959 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1769963510?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Slopes+from+photoclinometry+for+the+Mars+InSight+landing+site+selection+process&rft.au=Beyer%2C+R+A%3BAnonymous&rft.aulast=Beyer&rft.aufirst=R&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-03-03 N1 - CODEN - #07548 ER - TY - JOUR T1 - Degradation of Endeavour crater, Mars AN - 1769963507; 2016-017939 AB - The Opportunity rover is traversing the western rim segments of the 22 km diameter Endeavour crater in Meridiani Planum, with resultant data enabling evaluation of the craters's degradation state. The crater is Noachian in age, complex in morphology, and largely buried by younger sulfate-rich rocks. Nevertheless, exposed rim segments dubbed Cape York (CY) and Solander Point/Murray Ridge (S/M) approximately 1500 m to the south reveal breccias interpreted as remnants of the ejecta deposit (Shoemaker Formation or SF) that at CY overlie the pre-impact country rocks (Matijevic Formation or MF). At CY, relief is approximately 10 m and consists of 6-7 m of SF over at least several m of MF. By contrast, the MF/SF contact is not visible at S/M despite outcrops some 20 m below and 60 m above the elevation of the contact at CY. This implies some structural offset between the rim segments and suggests up to 70 m section is preserved at S/M. The lack of information about the orientation of the SF at S/M makes the true thickness difficult to establish, though it appears to be 10's of m more than at CY. Comparison to similar sized, fresh, complex craters on Mars and the Moon suggests there was originally 100-200 m of ejecta at Endeavour's rim. Ejecta comprise only 20-25% of the rim relief around lunar craters of similar size, thereby implying an original rim height of up to 500-1000 m at Endeavour. If accurate, then approximately 400-800 m of the rim remains buried; the higher end of this range is close to the 800-900 m section interpreted elsewhere. If 200 m ejecta were present, then CY and S/M experienced approximately 190 m and over 100 m erosional lowering, respectively. If 100 m ejecta were present then rim lowering was approximately 90 m and 10's of m, respectively. Such differences between rim segments likely relate to changing efficiency of responsible processes and/or varying characteristics of the rocks and indicate portions of Endeavour crater experienced significant degradation. A paucity of exposed debris shed from SF and MT around the CY and S/M rim segments relegates most erosion to before the surrounding plains deposits were emplaced. Endeavour ranges between 250-500 m deep. By contrast, recent studies of pristine complex craters on Mars suggest the original depth was probably closer to 2000 m, though it is unclear how much older fill may occur beneath exposed sulfate-rich rocks. JF - American Geophysical Union Fall Meeting AU - Grant, J A, III AU - Crumpler, L S AU - Parker, T J AU - Golombek, M P AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P33A EP - 4027 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1769963507?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Degradation+of+Endeavour+crater%2C+Mars&rft.au=Grant%2C+J+A%2C+III%3BCrumpler%2C+L+S%3BParker%2C+T+J%3BGolombek%2C+M+P%3BAnonymous&rft.aulast=Grant&rft.aufirst=J&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-03-03 N1 - CODEN - #07548 ER - TY - JOUR T1 - Smectite formation in Gale Crater, Mars and in the nakhlite Martian meteorites AN - 1769963490; 2016-017871 AB - Recent, detailed analyses of the nakhlite Martian meteorites have enabled characterization of a ferric saponite and ferric serpentine (Hicks et al. 2014 10.1016/j.gca.2014.04.010). This nakhlite assemblage is part of a rapidly cooled, hydrothermal assemblage, cooled from approximately 150 degrees C, with the clay forming at approximately 50 degrees C (Bridges and Schwenzer 2012 10.1016/j.epsl.2012.09.044). Although there are differences between the overall secondary assemblage in the nakhlites and that identified in the Yellowknife Bay mudstones by CheMin (Vaniman et al. 2014 10.1126/science1243480), the trioctahedral iron-rich saponite is probably the closest analogue known to the smectite found in Gale crater. MSL analyzed mudstones at the Yellowknife Bay, deposited in a fluvio-lacustrine setting followed by diagenesis approximately 50 degrees C (Grotzinger et al. 2014 10.1126/science.1242777). The mineralogical information provides allows us to constrain mineral reactions, W/R, pH, and redox associated using thermochemical modelling, and comparisons to the nakhlites. We use a 2 stage fluid model, with an initial deccan-type brine composition (Minissale et al. 2000 10.1016/S0012-821X(00)00200-4) which reacts with the known rock compositions--using ChemCam and APXS data to produce a pore fluid. CHIM-XPT was used for the modeling. Initial reaction of the early brine with olivine in the mudstone produces relatively Mg-rich phyllosilicate. This early diagenesis may correspond to the formation of Mg-Fe rich ridges (Leveille et al. 10.1002/2014JE004620). Subsequent reaction of the resultant fluid separated at a W/R of 100, produced a fluid that we then reacted with a range of different mineral and amorphous mixtures, T, W/R conditions. A mixture of 70% amorphous, 20% olivine, 10% host rock produced a clay-Fe oxide dominated assemblage, similar to that in Sheepbed. The clay has a similar composition to ferric saponite and gel in the nakhlites (Bridges et al. JGR, subm.). JF - American Geophysical Union Fall Meeting AU - Bridges, J AU - Schwenzer, S P AU - Leveille, R J AU - Westall, F AU - Wiens, R C AU - Mangold, N AU - Bristow, T AU - Edwards, P AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P23E EP - 02 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1769963490?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Aviation%2C+Space%2C+and+Environmental+Medicine&rft.atitle=The+Metabolic+Cost+of+an+Integrated+Exercise+Program+Performed+During+14+Days+of+Bed+Rest&rft.au=Scott%2C+Jessica+M%3BHackney%2C+Kyle%3BDowns%2C+Meghan%3BGuined%2C+Jamie%3BPloutz-Snyder%2C+Robert%3BFiedler%2C+James%3BCunningham%2C+David%3BPloutz-Snyder%2C+Lori&rft.aulast=Scott&rft.aufirst=Jessica&rft.date=2014-06-01&rft.volume=85&rft.issue=6&rft.spage=612&rft.isbn=&rft.btitle=&rft.title=Aviation%2C+Space%2C+and+Environmental+Medicine&rft.issn=00956562&rft_id=info:doi/10.3357%2FASEM.3772.2014 LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-03-03 N1 - CODEN - #07548 ER - TY - JOUR T1 - Bacterial motility as a biosignature; tests at icy moon analogue sites AN - 1769963473; 2016-018092 AB - Extraterrestrial life in our solar system, if present, is almost certain to be microbial. Methods and technologies for unambiguous detection of living or extinct microorganisms are needed for life-detection missions to the Jovian and Saturnian moons, where liquid water is known to exist. Our research focuses specifically on microbial meaningful motion as a biosignature-"waving crowds" at the micron scale. Digital Holographic Microscopy (DHM) is an excellent tool for unambiguous identification of bacterial and protozoal swimming, even in the presence of turbidity, drift, and currents. The design of a holographic instrument with bacteria scale resolution was described in the previous talk. In this presentation, we will illustrate the design challenges for construction of a field instrument for extreme environments and space, and present plans for scientific investigations at analogue sites for the coming season. The challenges of creating a field instrument involve performance trade-offs, the ability to operate at extreme temperatures, and handling large volumes of data. A fully autonomous instrument without external cables or power is also desirable, and this is something that previous holographic instruments have not achieved. The primary issues for space exploration are identification of a laser and drive electronics that are qualified for the expected radiation environments of the moons around gas giant planets. Tests in Earth analog environments will establish performance parameters as well as answer scientific questions that traditional microscopic techniques cannot. Specifically, we will visit a Greenland field site to determine whether or not microorganisms are motile within the brine-filled interior network of sea ice, and if they can be autonomously tracked using the instrument. Motility within the liquid phase of a frozen matrix has been hypothesized to explain how bacteria contribute to the biogeochemical signatures detected in ice, but observational evidence of motility in natural samples at subzero temperatures does not exist. Complementing tests for bacterial motility in ice-brines, we will also test for motility in the subzero waters directly beneath the ice, where motility has long been suspected but also never observed. JF - American Geophysical Union Fall Meeting AU - Nadeau, J L AU - Lindensmith, C AU - Deming, J W AU - Stocker, R AU - Graff, E AU - Serabyn, E AU - Wallace, J K AU - Liewer, K AU - Kuhn, J AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P53A EP - 4005 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1769963473?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Bacterial+motility+as+a+biosignature%3B+tests+at+icy+moon+analogue+sites&rft.au=Nadeau%2C+J+L%3BLindensmith%2C+C%3BDeming%2C+J+W%3BStocker%2C+R%3BGraff%2C+E%3BSerabyn%2C+E%3BWallace%2C+J+K%3BLiewer%2C+K%3BKuhn%2C+J%3BAnonymous&rft.aulast=Nadeau&rft.aufirst=J&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-03-03 N1 - CODEN - #07548 ER - TY - JOUR T1 - Simulating Pluto's atmosphere with a unified multiple modeling framework AN - 1769963472; 2016-017947 AB - We describe a unified modeling framework for simulating Pluto's atmospheric dynamics and surface interactions. The framework is based around the PlutoWRF general circulation model (GCM). The GCM can also be pared back to simpler implementations that share the same infrastructure. Two reduced versions of PlutoWRF are a 2D surface volatile exchange model and a 1D radiative-convective model. These implementations help specify physically self-consistent initial conditions for more computationally intensive 3D GCM runs, and provide insight into the results of those simulations. The 2D surface volatile exchange model provides predictions of surface conditions (surface pressure, ground temperature, ice coverage, etc.) with easy variation of input parameters (thermal inertia, ice albedo, volatile inventory, etc.) and the 1D radiative-convective model provides predictions of global-average air temperature with easy variation of input parameters (atmospheric composition, etc.) We compare our 2D surface volatile exchange model with others' work, and highlight the important role that ice sublimation and deposition play in the atmospheric dynamics. JF - American Geophysical Union Fall Meeting AU - Toigo, Anthony D AU - French, R G AU - Gierasch, P AU - Guzewich, S AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P33B EP - 4035 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1769963472?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Simulating+Pluto%27s+atmosphere+with+a+unified+multiple+modeling+framework&rft.au=Toigo%2C+Anthony+D%3BFrench%2C+R+G%3BGierasch%2C+P%3BGuzewich%2C+S%3BAnonymous&rft.aulast=Toigo&rft.aufirst=Anthony&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-03-03 N1 - CODEN - #07548 ER - TY - JOUR T1 - GIADA on-board Rosetta; early dust grain detections and dust coma characterization of Comet 67P/C-G AN - 1769963438; 2016-017928 AB - GIADA (Grain Impact Analyzer and Dust Accumulator) flying on-board Rosetta is devoted to study the cometary dust environment of 67P/Churiumov-Gerasimenko. GIADA is composed of 3 sub-systems: the GDS (Grain Detection System), based on grain detection through light scattering; an IS (Impact Sensor), giving momentum measurement detecting the impact on a sensed plate connected with 5 piezoelectric sensors; the MBS (MicroBalances System), constituted of 5 Quartz Crystal Microbalances (QCMs), giving cumulative deposited dust mass by measuring the variations of the sensors' frequency. The combination of the measurements performed by these 3 subsystems provides: the number, the mass, the momentum and the velocity distribution of dust grains emitted from the cometary nucleus. No prior in situ dust dynamical measurements at these close distances from the nucleus and starting from such large heliocentric distances are available up to date. We present here the first results obtained from the beginning of the Rosetta scientific phase. We will report dust grains early detection at about 800 km from the nucleus in August 2014 and the following measurements that allowed us characterizing the 67P/C-G dust environment at distances less than 100 km from the nucleus and single grains dynamical properties. Acknowledgements. GIADA was built by a consortium led by the Univ. Napoli Parthenope & INAF-Oss. Astr. Capodimonte, IT, in collaboration with the Inst. de Astrofisica de Andalucia, ES, Selex-ES s.p.a. and SENER. GIADA is presently managed & operated by Ist. di Astrofisica e Planetologia Spaziali-INAF, IT. GIADA was funded and managed by the Agenzia Spaziale Italiana, IT, with a support of the Spanish Ministry of Education and Science MEC, ES. GIADA was developed from a PI proposal supported by the University of Kent; sci. & tech. contribution given by CISAS, IT, Lab. d'Astr. Spat., FR, and Institutions from UK, IT, FR, DE and USA. We thank the RSGS/ESAC, RMOC/ESOC & Rosetta Project/ESTEC for their outstanding work. Science support provided by NASA through the US Rosetta Project managed by JPL/California Institute of Technology. GIADA calibrated data will be available through the ESA's PSA web site (www.rssd.esa.int/index.php?project=PSA&page=index). Thanks Angioletta. JF - American Geophysical Union Fall Meeting AU - Rotundi, A AU - Della Corte, V AU - Accolla, M AU - Ferrari, M AU - Ivanovski, S AU - Lucarelli, F AU - Mazzotta Epifani, E AU - Sordini, R AU - Palumbo, P AU - Colangeli, L AU - Lopez-Moreno, J J AU - Rodriguez, J AU - Fulle, M AU - Bussoletti, E AU - Crifo, J F AU - Esposito, F AU - Green, S AU - Gruen, E AU - Lamy, P L AU - McDonnell, T AU - Mennella, V AU - Molina, A AU - Moreno, F AU - Ortiz, J L AU - Palomba, E AU - Perrin, J M AU - Rodrigo, R AU - Weissman, P R AU - Zakharov, V AU - Zarnecki, J AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P32B EP - 05 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1769963438?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=GIADA+on-board+Rosetta%3B+early+dust+grain+detections+and+dust+coma+characterization+of+Comet+67P%2FC-G&rft.au=Rotundi%2C+A%3BDella+Corte%2C+V%3BAccolla%2C+M%3BFerrari%2C+M%3BIvanovski%2C+S%3BLucarelli%2C+F%3BMazzotta+Epifani%2C+E%3BSordini%2C+R%3BPalumbo%2C+P%3BColangeli%2C+L%3BLopez-Moreno%2C+J+J%3BRodriguez%2C+J%3BFulle%2C+M%3BBussoletti%2C+E%3BCrifo%2C+J+F%3BEsposito%2C+F%3BGreen%2C+S%3BGruen%2C+E%3BLamy%2C+P+L%3BMcDonnell%2C+T%3BMennella%2C+V%3BMolina%2C+A%3BMoreno%2C+F%3BOrtiz%2C+J+L%3BPalomba%2C+E%3BPerrin%2C+J+M%3BRodrigo%2C+R%3BWeissman%2C+P+R%3BZakharov%2C+V%3BZarnecki%2C+J%3BAnonymous&rft.aulast=Rotundi&rft.aufirst=A&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-03-03 N1 - CODEN - #07548 ER - TY - JOUR T1 - Constraining Archean Earth's atmosphere with the geological record AN - 1769963428; 2016-017825 AB - A warm, water-bearing Archean Earth, when the Sun was young and faint, remains a paradox to the scientific world. Abundant geological data suggests that Archean Earth had standing water at the surface, despite the fainter Sun. An explanation of this paradox is vital to the understanding of Earth's history and coevolution with life. If the surface of the planet was not being kept warm by the Sun, which was 25% less luminous than now, it must have been kept warm a different way-by an atmospheric composition high in greenhouse gases. Constraints on these gases come from the geological record, which have provided proxies for the redox state of the atmosphere (limiting H (sub 2) and O (sub 2) ), the total atmospheric pressure, and the partial pressure of certain gases such as carbon dioxide (CO (sub 2) ) and methane (CH (sub 4) ). Previous attempts at solutions to the paradox are consistent with some, but not all, of the geological proxies. The constraints are used as inputs for a 1-D photochemical code, which calculates atmospheric composition and predicts the abundances of atmospheric gases that affect climate, particularly methane (CH (sub 4) ) and gaseous hydrogen (H (sub 2) ). A coupled 1-D radiative-convective climate code is then used to calculate the corresponding surface temperature. Critically, the improved photochemical code maintains strict redox boundary conditions, and is being further updated to ensure that the redox fluxes from volcanoes and mid-ocean ridge vents are consistent with both each other and the redox state of the mantle. These code improvements will lead to changes in both the inputs to the atmosphere from volcanoes and the sink for oxidants at mid-ocean ridges, in turn affecting the abundance of redox-sensitive greenhouse gases such as CH (sub 4) and H (sub 2) . The main purpose of this project is to extend simulations of the Archean surface environment down into the mantle, and to search for a solution to the faint young sun paradox that is consistent with the geological proxies. Beyond having interesting implications on Archean Earth's climatic history, this study effectively uses Archean Earth as an analog environment in which to test a new tool for simulating the effects of mantle geochemistry on (exo)planetary atmospheres and environments. JF - American Geophysical Union Fall Meeting AU - Horan, A M AU - Domagal-Goldman, S D AU - Claire, M AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P11C EP - 3784 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 12:Stratigraphy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1769963428?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Constraining+Archean+Earth%27s+atmosphere+with+the+geological+record&rft.au=Horan%2C+A+M%3BDomagal-Goldman%2C+S+D%3BClaire%2C+M%3BAnonymous&rft.aulast=Horan&rft.aufirst=A&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-03-03 N1 - CODEN - #07548 ER - TY - JOUR T1 - Spectroscopic observations of comet C/2013 A1 (Siding Spring) from Mars using ChemCam, OMEGA and SPICAM AN - 1769963403; 2016-017993 AB - Comet Siding Spring will graze Mars on Oct. 19th 2014. Its closest approach from the centre of the planet will be 135,000 km, and its predicted visual magnitude as low as -5.3 (JPL Horizons web site). The observing conditions will be ideal to attempt spectroscopic measurements of the inner coma from the UV to the IR at an unprecedented spectral resolution from the instruments located on and around Mars. ChemCam is a Laser-Induced Breakdown Spectroscopy instrument operating on-board the Mars Science Laboratory rover to analyse the chemical composition of rocks and can be used for passive spectroscopy. ChemCam is equipped with high resolution spectrometers covering the optical range (240-850 nm) with a pixel resolution of 0.05nm up to 470nm and 0.2nm in the near-IR range. The ChemCam passive spectroscopy field of view is 0.65 mrad wide and covers several 100km projected on the coma. Based on predicted magnitude and inner coma intensity variations, we expect to retrieve spectral signatures around the nucleus. Simultaneously the 7 instruments on board Mars Express will take measurements in nadir and limb modes. We will merge the results obtained with ChemCam with those of the 2 imaging spectrometers SPICAM (110-310 nm resolution of 0.6nm and 1-1.7 mu m resolution of 1.5 nm) and OMEGA (457-910 nm resolution of 1.5 nm and 2.5-5.1 mu m resolution of 15 nm) to obtain the composition and spatial variation of emitting molecules in the different parts of the coma. The instruments will also monitor the atmosphere before and after the encounter to detect any change. We will report on the preparations for the observations and the spectroscopy results, with emphasis on the detection of complex organic molecules and the spatial distribution of H2O and OH in the inner coma. A decision will be made on the adequacy of risk reduction activities for the spacecraft, and planned science operations may need to be cancelled by ESOC. This work is supported by NASA, ESA and CNES. JF - American Geophysical Union Fall Meeting AU - Lasue, J AU - Gondet, Brigette AU - Bertaux, Jean-Loup AU - Barraclough, B L AU - Beck, Pierre AU - Bender, S AU - Bibring, J P AU - Bridges, Nathan T AU - Chaufray, J Y AU - Gasnault, Olivier AU - Herkenhoff, K E AU - Langevin, Y AU - Le Mouelic, Stephane AU - Lemmon, M T AU - Lewin, Eric AU - McConnochie, Timothy H AU - Martin-Torres, Javier AU - Maurice, Sylvestre AU - Meslin, P Y AU - Ming, Douglas W AU - Montmessin, F AU - Owen, T C AU - Rapin, William AU - Rocard, Francis AU - Wiens, R C AU - Zorzano, M P AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P42A EP - 05 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1769963403?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Spectroscopic+observations+of+comet+C%2F2013+A1+%28Siding+Spring%29+from+Mars+using+ChemCam%2C+OMEGA+and+SPICAM&rft.au=Lasue%2C+J%3BGondet%2C+Brigette%3BBertaux%2C+Jean-Loup%3BBarraclough%2C+B+L%3BBeck%2C+Pierre%3BBender%2C+S%3BBibring%2C+J+P%3BBridges%2C+Nathan+T%3BChaufray%2C+J+Y%3BGasnault%2C+Olivier%3BHerkenhoff%2C+K+E%3BLangevin%2C+Y%3BLe+Mouelic%2C+Stephane%3BLemmon%2C+M+T%3BLewin%2C+Eric%3BMcConnochie%2C+Timothy+H%3BMartin-Torres%2C+Javier%3BMaurice%2C+Sylvestre%3BMeslin%2C+P+Y%3BMing%2C+Douglas+W%3BMontmessin%2C+F%3BOwen%2C+T+C%3BRapin%2C+William%3BRocard%2C+Francis%3BWiens%2C+R+C%3BZorzano%2C+M+P%3BAnonymous&rft.aulast=Lasue&rft.aufirst=J&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-03-03 N1 - CODEN - #07548 ER - TY - JOUR T1 - Compressive strength of cometary surfaces derived from radar observations AN - 1769963393; 2016-018037 AB - Landing on a comet nucleus and probing it, mechanically using harpoons, penetrometers and drills, and electromagnetically using low frequency radar waves is a complex task that will be tackled by the Rosetta mission for Comet 67P/Churyumov-Gerasimenko. The mechanical properties (i.e. density, porosity and compressive strength) and the electrical properties (i.e. the real and imaginary parts of the dielectric constant) of the comet nucleus, constrain both the mechanical and electromagnetic probing capabilities of Rosetta, as well as the choice of landing site, the safety of the landing, and subsurface data interpretation. During landing, the sounding radar data that will be collected by Rosetta's CONSERT experiment can be used to probe the comet's upper regolith layer by assessing its dielectric properties, which are then inverted to retrieve the surface mechanical properties. These observations can help characterize the mechanical properties of the landing site, which will optimize the operation of the anchor system. In this effort, we correlate the mechanical and electrical properties of cometary analogs to each other, and derive an empirical model that can be used to retrieve density, porosity and compressive strength from the dielectric properties of the upper regolith inverted from CONSERT observations during the landing phase. In our approach we consider snow as a viable cometary material analog due to its low density and its porous nature. Therefore, we used the compressive strength and dielectric constant measurements conducted on snow at a temperature of 250 K and a density range of 0.4-0.9 g/cm3 in order to investigate the relation between compressive strength and dielectric constant under cometary-relevant density range. Our results suggest that compressive strength increases linearly as function of the dielectric constant over the observed density range mentioned above. The minimum and maximum compressive strength of 0.5 and 4.5 MPa corresponded to a dielectric constant of 2.2 and 3.4 over the density range of 0.4-0.9 g/cm3. This preliminary correlation will be applied to the case of porous and dust contaminated snow under different temperatures to assess the surface mechanical properties for Comet 67P. JF - American Geophysical Union Fall Meeting AU - ElShafie, A AU - Heggy, E AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P51C EP - 3964 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1769963393?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Compressive+strength+of+cometary+surfaces+derived+from+radar+observations&rft.au=ElShafie%2C+A%3BHeggy%2C+E%3BAnonymous&rft.aulast=ElShafie&rft.aufirst=A&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-06-17 N1 - CODEN - #07548 ER - TY - JOUR T1 - Laboratory simulations of permeability pertaining to biosignature development and preservation potential for Martian subsurface habitability AN - 1769963358; 2016-017953 AB - Sedimentological and mineralogical observations indicate that sandstones within the Eagle and Endurance crater sections of the Burns Formation of Meridiani Planum, Mars, were derived from sulfate-bearing altered basalt, possibly from a playa lake, and deposited by eolian and locally subaqueous processes in a eolian dune--sand sheet--interdune setting. Abrasion of rocks within the outcrop outlining Endurance Crater by the MER rover Opportunity revealed void spaces later determined to be secondary pore space created from the dissolution of soluble minerals from multiple groundwater movement (recharge) events. Previous investigations into the secondary porosity and permeability of rocks within the Karatepe section showed that the ability for fluid movement through the vertical sedimentary section was greatest between the Upper and Middle units at the Whatanga contact within Endurance Crater, where secondary porosity was measured to be approximately 40% of the rock. Our investigations into quantifying subsurface habitability involve simulating the paleo-groundwater environments on the micro-to-mesoscale (sub mm-scale to cm-scale) to determine how preservation potential changes with repeated water-rock interaction, varying fluid chemistry (pH, salinity, T, others), and pressure changes under Earth and Mars conditions. In addition to fluids, microbes (extremophiles) will be introduced into our simulation to observe how changing experimental input conditions impact the growth and development of biotic interactions and eventually biosignatures left behind within sedimentary microtextures. Moreover, detection of biosignatures using visual and UV methods will help inform the M2020 rover mission regarding in-situ analysis of abraded rock outcrops. Finally, results of this work will use terrestrial rocks and fluids from a known Mars analogue (the Rio Tinto basin) in order to aid in determining habitability and survivability in acidic and high saline conditions that are similar to Meridiani Planum, Mars. JF - American Geophysical Union Fall Meeting AU - Perl, S M AU - Corsetti, F A AU - Berelson, W AU - Nealson, K H AU - Bhartia, R AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P33C EP - 4043 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1769963358?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Laboratory+simulations+of+permeability+pertaining+to+biosignature+development+and+preservation+potential+for+Martian+subsurface+habitability&rft.au=Perl%2C+S+M%3BCorsetti%2C+F+A%3BBerelson%2C+W%3BNealson%2C+K+H%3BBhartia%2C+R%3BAnonymous&rft.aulast=Perl&rft.aufirst=S&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-03-03 N1 - CODEN - #07548 ER - TY - JOUR T1 - Mineralogy of fluvio-lacustrine sediments investigated by Curiosity during the prime mission; implications for diagenesis AN - 1769963352; 2016-018002 AB - The Mars Science Laboratory rover Curiosity investigated sedimentary rocks that were deposited in a diversity of fluvio-lacustrine settings. The entire science payload was employed to characterize the mineralogy and chemistry of the Sheepbed mudstone at Yellowknife Bay and the Windjana sandstone at the Kimberley. Data from the CheMin instrument, a transmission X-ray diffractometer, were used to determine the quantitative mineralogy of both samples. The Sheepbed mudstone contains detrital basaltic minerals, calcium sulfates, iron oxides or hydroxides, iron sulfides, trioctahedral smectite, and amorphous material. The mineral assemblage and chemical data from APXS suggest that the trioctahedral smectite and magnetite formed authigenically as a result of alteration of olivine. The apparent lack of higher-grade phyllosilicates (e.g., illite and chlorite) and the presence of anhydrite indicate diagenesis at nearly equal 50-80 degrees C. The mineralogy of the Windjana sandstone is different than the Sheepbed mudstone. Windjana contains significant abundances of K-feldspar, low- and high-Ca pyroxenes, magnetite, phyllosilicates, and amorphous material. At least two distinct phyllosilicate phases exist: a 10 Aa phase and a component that is expanded with a peak at nearly equal 11.8 Aa. The identity of the expanded phase is currently unknown, but could be a smectite with interlayer H (sub 2) O, and the 10 Aa phase could be illite or collapsed smectite. Further work is necessary to characterize the phyllosilicates, but the presence of illite could suggest that Windjana experienced burial diagenesis. Candidates for the cementing agents include fine-grained phyllosilicates, Fe-oxides, and/or amorphous material. Interpretations of CheMin data from the Windjana sandstone are ongoing at the time of writing, but we will present an estimate of the composition of the amorphous material from mass balance calculations using the APXS bulk chemistry and quantitative mineralogy from CheMin. JF - American Geophysical Union Fall Meeting AU - Rampe, Elizabeth B AU - Morris, Richard V AU - Bish, D L AU - Vaniman, D T AU - Bristow, Thomas F AU - Chipera, S AU - Blake, David AU - Ming, Douglas W AU - Farmer, Jack AU - Morrison, Shaunna M AU - Treiman, A H AU - Achilles, C AU - Crisp, Joy A AU - Des Marais, David J AU - Downs, R T AU - Morookian, John Michael AU - Sarrazin, P AU - Spanovich, Nicole AU - Yen, Albert S AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P42C EP - 04 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1769963352?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Mineralogy+of+fluvio-lacustrine+sediments+investigated+by+Curiosity+during+the+prime+mission%3B+implications+for+diagenesis&rft.au=Rampe%2C+Elizabeth+B%3BMorris%2C+Richard+V%3BBish%2C+D+L%3BVaniman%2C+D+T%3BBristow%2C+Thomas+F%3BChipera%2C+S%3BBlake%2C+David%3BMing%2C+Douglas+W%3BFarmer%2C+Jack%3BMorrison%2C+Shaunna+M%3BTreiman%2C+A+H%3BAchilles%2C+C%3BCrisp%2C+Joy+A%3BDes+Marais%2C+David+J%3BDowns%2C+R+T%3BMorookian%2C+John+Michael%3BSarrazin%2C+P%3BSpanovich%2C+Nicole%3BYen%2C+Albert+S%3BAnonymous&rft.aulast=Rampe&rft.aufirst=Elizabeth&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-03-03 N1 - CODEN - #07548 ER - TY - JOUR T1 - A detailed geomorphological sketch map of Titan's Afekan crater region AN - 1769963330; 2016-017862 AB - Due to Titan's uniquely thick atmosphere and organic haze layers, the most detailed images (with resolution of 300 meters per pixel) of the Saturnian moon's surface exist as Synthetic Aperture Radar (SAR) images taken by Cassini's RADAR instrument. Using the SAR data, we have been putting together detailed geomorphological sketch maps of various Titan regions in an effort to piece together its geologic history. We initially examined the Afekan region of Titan due to extensive SAR coverage. Features described on Afekan fall under the categories (in order of geologic age, extrapolated from their relative emplacement) of hummocky, labyrinthic, plains, and dunes. During our mapping effort, we also divided each terrain category into several different subclasses on a local level. Our map offers a chance to present and analyze the distribution, relationship, and potential formation hypotheses of the different terrains. In bulk, we find evidence for both Aeolian and fluvial processes. A particularly important unit found in the Afekan region is the unit designated "undifferentiated plains", or the "Blandlands" of Titan, a mid-latitude terrain unit comprising 25% of the moon's surface. Undifferentiated plains are notable for its relative featurelessness in radar and infrared. Our interpretation is that it is a fill unit in and around Afekan crater and other hummocky/mountainous units. The plains suggest that the nature of Titan's geomorphology seems to be tied to ongoing erosional forces and sediment deposition. Other datasets used in characterizing Titan's various geomorphological units include information obtained from radiometry, infrared (ISS), and spectrometry (VIMS). We will present the detailed geomorphological sketch map with all the terrain units assigned and labeled. JF - American Geophysical Union Fall Meeting AU - Schoenfeld, A AU - Malaska, M J AU - Lopes, R M C AU - Le Gall, A A AU - Birch, S P AU - Hayes, A AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P23D EP - 4013 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1769963330?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=A+detailed+geomorphological+sketch+map+of+Titan%27s+Afekan+crater+region&rft.au=Schoenfeld%2C+A%3BMalaska%2C+M+J%3BLopes%2C+R+M+C%3BLe+Gall%2C+A+A%3BBirch%2C+S+P%3BHayes%2C+A%3BAnonymous&rft.aulast=Schoenfeld&rft.aufirst=A&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-03-03 N1 - CODEN - #07548 ER - TY - JOUR T1 - Performances of the Mars Organic Molecule Analyzer (MOMA) GC-MS suite aboard ExoMars mission AN - 1769963289; 2016-017802 AB - The Mars Organic Molecule Analyzer (MOMA) aboard the ExoMars rover (Pasteur) will be a key analytical tool in providing chemical (molecular) information from the solid samples collected by the rover, with a particular focus on the characterization of the organic content. Samples will be extracted as deep as 2 meters below the martian surface to minimize effects of radiation and oxidation on organic materials. The core of the MOMA instrument is a dual source UV laser desorption / ionization (LDI) and pyrolysis gas chromatography (pyr-GC) ion trap mass spectrometer (ITMS) which provides the unique capability to characterize a broad range of compounds, including both of volatile and non-volatile species. Samples which undergo GC-ITMS analysis may be submitted to a derivatization process, consisting of the reaction of the sample components with specific reactants (MTBSTFA [1], DMF-DMA [2] or TMAH [3]) which increase the volatility of complex organic species. With the goal to optimize this instrumentation, and especially the GC-ITMS coupling, a series of tests is currently being carried out with prototypes of MOMA instrumentation and with the ETU models wich is similar to the flight model. The MOMA oven and tapping station are also part of these end-to-end experiments. Qualitative and quantitative tests has been done on gas, liquid and solid samples. The results obtained demonstrate the current status of the end-to-end performance of the gas chromatography-mass spectrometry mode of operation. Both prototypes individually meet the performance requirements, but this work particularly demonstrates the capabilities of the critical GC-MS interface. References: [1] Buch, A. et al. (2009) J chrom. A, 43, 143-151. [2] Freissinet et al. (2011) J Chrom A, 1306, 59-71. [3] Geffroy-Rodier, C. et al. (2009) JAAP, 85, 454-459. Acknowledgements: Funding provided by the Mars Exploration Program (point of contact, George Tahu, NASA/HQ). MOMA is a collaboration between NASA and ESA (PI Goesmann, MPS). MOMA-GC team acknowledges support from the French Space Agency (CNES), French National Programme of Planetology (PNP), National French Council (CNRS), Pierre Simon Laplace Institute. JF - American Geophysical Union Fall Meeting AU - Buch, Arnaud AU - Grand, Noel AU - Pinnick, Veronica T AU - Szopa, Cyril AU - Humeau, Olivier AU - Danell, R AU - van Amerom, F H W AU - Freissinet, Caroline AU - Glavin, Daniel P AU - Belmahdi, Imene AU - Coll, P J AU - Lustrement, Benjamin AU - Brinckerhoff, William B AU - Arevalo, R D, Jr AU - Stalport, Fabien AU - Steininger, H AU - Goesmann, F AU - Raulin, Francois AU - Mahaffy, Paul R AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P11A EP - 3748 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1769963289?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Performances+of+the+Mars+Organic+Molecule+Analyzer+%28MOMA%29+GC-MS+suite+aboard+ExoMars+mission&rft.au=Buch%2C+Arnaud%3BGrand%2C+Noel%3BPinnick%2C+Veronica+T%3BSzopa%2C+Cyril%3BHumeau%2C+Olivier%3BDanell%2C+R%3Bvan+Amerom%2C+F+H+W%3BFreissinet%2C+Caroline%3BGlavin%2C+Daniel+P%3BBelmahdi%2C+Imene%3BColl%2C+P+J%3BLustrement%2C+Benjamin%3BBrinckerhoff%2C+William+B%3BArevalo%2C+R+D%2C+Jr%3BStalport%2C+Fabien%3BSteininger%2C+H%3BGoesmann%2C+F%3BRaulin%2C+Francois%3BMahaffy%2C+Paul+R%3BAnonymous&rft.aulast=Buch&rft.aufirst=Arnaud&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - Number of references - 3 N1 - PubXState - DC N1 - Last updated - 2016-03-03 N1 - CODEN - #07548 ER - TY - JOUR T1 - Evidence for impact vaporization as a source of calcium in Mercury's exosphere AN - 1769963273; 2016-017849 AB - Mercury is surrounded by a surface-bounded exosphere with six known components: H, He, Na, K, Ca, and Mg. Of these components, Ca is of extreme temperature and has been observed in Mercury's exosphere for the past decade, after its discovery by Bida et al. (2000) from observations with the Keck telescope on Mauna Kea. Observations of the Ca exosphere by MESSENGER show a source concentrated on the dawn side. The time variation in that Ca signal repeats every Mercury year (Burger et al., 2014). Figure 1 shows how the Ca source rate varies with true anomaly angle, nu , which is the planet's orbital longitude measured from the direction of periapse. We suspect that these variations are due to impact vaporization resulting from infalling interplanetary dust. Our models of this scenario show that much of the seasonal variation in Ca is due to Mercury's substantial radial motion through the interplanetary dust cloud that results from Mercury's large orbital eccentricity (e=0.2). The seasonal Ca variation is enhanced further by Mercury's large orbital inclination (7 degrees relative to the ecliptic), which causes additional periodic variations in the dust infall rate as Mercury's vertical motion carries it repeatedly across the dust-disk's midplane. Note also the strong Ca enhancement near nu approximately 20 degrees (Fig 1) which requires an additional source of localized dust. The location of that peak is close to (but not precisely coincident with) Mercury's orbital longitude as it crosses the orbital plane of comet 2P/Encke. Bida, T. A. et al., 2000. Nature 404, 154-161. Burger, M. H. et al., 2014, Icarus 238, 51-58. Figure 1. Vaporization rate of Ca at Mercury from interplanetary dust (green line) versus true anomaly angle, plus an assumed cometary source centered at 25 degrees with a Gaussian half width of 15 degrees . The modeled source rates from Burger et al. (2014) are plotted in black. The sum of the disk and cometary sources is plotted in red. JF - American Geophysical Union Fall Meeting AU - Killen, R M AU - Hahn, J M AU - Burger, M H AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P23C EP - 3994 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1769963273?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Evidence+for+impact+vaporization+as+a+source+of+calcium+in+Mercury%27s+exosphere&rft.au=Killen%2C+R+M%3BHahn%2C+J+M%3BBurger%2C+M+H%3BAnonymous&rft.aulast=Killen&rft.aufirst=R&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-03-03 N1 - CODEN - #07548 ER - TY - JOUR T1 - The Mars 2020 mission; the next step forward in Mars exploration AN - 1769963245; 2016-017877 AB - The next rover mission to Mars represents the culmination of almost two decades of strategic missions in the exploration of Mars. Our understanding of the Red Planet has evolved from a global frozen desert to a dynamic world that once was warmer, wetter, and could have supported microbial life, and the series of missions reflect this evolution, moving from global reconnaissance to seeking the signs of life. The 2020 rover will be outfitted with seven sophisticated payload elements to conduct remote sensing and contact science, demonstrate exploration technology, and cache samples for potential return to Earth. The mission's capabilities exceed the threshold mission detailed in the Mars 2020 Science Definition Team 2013 report1 and meets the NRC's 2011 Decadal Survey's requirements for the highest priority mission of NASA's Planetary Science2. The instruments selected July 31, 2014, are able to determine elemental composition and mineralogy and detect organic compounds across spatial scales of meters to 100's of micrometers. The instrument suite includes a combination of a zooming, binocular, multi-spectral camera; a telescopic imager; two Raman spectrometers with different wavelength lasers (UV and Green); a visible/near-infrared spectrometer; a Laser-Induced Breakdown Spectrometer; an X-ray fluorescence spectrometer, a microscopic imager, and ground-penetrating radar. Their purpose is to enable the science team to establish the geological context of the landing site area, to assess whether past or present environments could support microbial life, to search for potential biosignatures, and to use this information to identify samples for caching. To prepare for future human exploration, the payload includes the ability for in situ resource utilization, converting CO2 to O2, the ability to assess physical characteristics of the dust, and environmental monitoring of the temperature, pressure, humidity, wind, and radiation. The Mars 2020 mission will pave a significant portion of the path to Mars for scientific understanding and future human exploration. We will detail the mission's scientific and exploration technology objectives and the payload assembled to accomplish these goals. JF - American Geophysical Union Fall Meeting AU - Meyer, M A AU - Schulte, M D AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P24A EP - 01 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1769963245?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=The+Mars+2020+mission%3B+the+next+step+forward+in+Mars+exploration&rft.au=Meyer%2C+M+A%3BSchulte%2C+M+D%3BAnonymous&rft.aulast=Meyer&rft.aufirst=M&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-03-03 N1 - CODEN - #07548 ER - TY - JOUR T1 - Helene; a plastic model AN - 1769963223; 2016-017995 AB - Helene, the Saturnian L4 Trojan satellite co-orbiting Dionne and sitting within the E-ring, possesses an unusual morphology characteristic of broad km-scale basins and depressions and a generally smooth surface patterned with streaks and grooves which are indicative of non-typical mass transport. Elevation angles do not appear to exceed 10 degrees at most. The nature and origin of the surface materials forming these grooved patterns is unknown. Given the low surface gravity (<5 mm/s (super 2) ), it hard to imagine how such transport features can come about with such low grades and surface gravities. Preliminary examinations of classical linear and nonlinear mass wasting mechanisms do not appear to reproduce these curious features. A suite of hypothesis that we examine is the possibility that the fine grain material on the surface has been either (i) accreted or (ii) generated as refractory detritus resulting from sublimation of the icy bedrock, and that these materials subsequently mass-waste like a non-Newtonian highly non-linear creeping flow. Modifying the landform evolution model MARSSIM to handle two new mass-wasting mechanism, the first due to glacial-like flow via Glen's Law and the second due to plastic-like flow like a Bingham fluid, we setup and test a number of likely scenarios to explain the observations. The numerical results qualitatively indicate that treating the mass-wasting materials as a Bingham material reproduces many of the qualitative features observed. We also find that in those simulations in which accretion is concomitant with Bingham mass-wasting, the long time-evolution of the surface flow shows intermittency in the total surface activity (defined as total surface integral of the absolute magnitude of the mass-flux). Detailed analyses identify the locations where this activity is most pronounced and we will discuss these and its implications in further detail. JF - American Geophysical Union Fall Meeting AU - Umurhan, O M AU - Moore, J M AU - Howard, A D AU - Schenk, P AU - White, Oliver L AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P42B EP - 04 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1769963223?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Helene%3B+a+plastic+model&rft.au=Umurhan%2C+O+M%3BMoore%2C+J+M%3BHoward%2C+A+D%3BSchenk%2C+P%3BWhite%2C+Oliver+L%3BAnonymous&rft.aulast=Umurhan&rft.aufirst=O&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-03-03 N1 - CODEN - #07548 ER - TY - JOUR T1 - The surface composition investigation for Pluto and its moons from the New Horizons mission AN - 1769963204; 2016-017913 AB - One of the main scientific goals of the New Horizons mission is to map the surface composition of Pluto and Charon. The mission will also investigate the composition of Pluto's smaller moons: Nix, Hydra, Kerberos and Styx. These objectives will primarily be accomplished using the Ralph instrument (Reuter et al. 2008) using the MVIC color channels (Red, Blue, Methane and Near-Infrared) and the LEISA infrared spectral imager. The planned compositional observations of Pluto, Charon and the small satellites will be described and compared to the current knowledge from Earth-based observations. Reuter, D. C., et al., 2008. Ralph: A Visible/Infrared Imager for the New Horizons Pluto/Kuiper Belt Mission. Space Science Reviews. 140, 129-154. JF - American Geophysical Union Fall Meeting AU - Olkin, C AU - Grundy, W M AU - Stern, S A AU - Weaver, H A, Jr AU - Young, L A AU - Ennico Smith, K AU - Binzel, R P AU - Cruikshank, Dale P AU - Jennings, D E AU - Parker, J W AU - Reuter, D AU - Spencer, J R AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P31E EP - 05 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1769963204?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=The+surface+composition+investigation+for+Pluto+and+its+moons+from+the+New+Horizons+mission&rft.au=Olkin%2C+C%3BGrundy%2C+W+M%3BStern%2C+S+A%3BWeaver%2C+H+A%2C+Jr%3BYoung%2C+L+A%3BEnnico+Smith%2C+K%3BBinzel%2C+R+P%3BCruikshank%2C+Dale+P%3BJennings%2C+D+E%3BParker%2C+J+W%3BReuter%2C+D%3BSpencer%2C+J+R%3BAnonymous&rft.aulast=Olkin&rft.aufirst=C&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/10.1089%2Fast.2013.1122 LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-03-03 N1 - CODEN - #07548 ER - TY - JOUR T1 - Seeking ancient microbial biosignatures with PIXL on Mars 2020 AN - 1769963149; 2016-017883 AB - Identifying ancient microbial biosignatures in the geologic record requires an assemblage of evidence, and almost never results from a single "smoking gun". When a potential biosignature such as a microfossil, organic deposit or stromatolite is found, sources of evidence for testing the biogenic hypothesis include the inherent properties of the feature itself, the assemblage characteristics of multiple candidate features, the geologic context of the features, and the relationship between changes in the features and changes in the geologic context. Given these diverse sources of evidence, multiple analytical techniques necessarily come into play. Some of the most powerful techniques emerging for ancient biosignature investigations are those that detailed, spatially correlated observations of fine texture, microstructure and composition (mineralogy, chemistry, organics etc). MicroX-ray fluorescence is a significant new method for in situ compositional analysis at sub-millimeter scales. Micro-XRF scans a focused X-ray beam across the surface of a rock to create a map of elemental composition at mm-cm scales, comprising individual spot measurements of 100 microns diameter. A micro-XRF instrument, PIXL (Planetary Instrument for X-ray Lithochemistry) was selected for flight aboard the Mars 2020 rover. We have used PIXL to analyze to diverse geological samples including ancient stromatolites, reduction spots, ooids, altered basalts, concretions and shales, and found that PIXL element maps are not only a highly effective way to quickly ascertain the compositional variability of the sample, but also that unexpected features typically emerge that can be critical for interpreting sedimentary, diagenetic and biological processes. For example, in two different stromatolite cases, elemental distribution revealed sedimentary and diagenetic textures that constrained the processes of stromatolite formation and implied biological influence. These textures were invisible in reflected light and too large to be observed at microscope scales. Fine scale elemental analysis by PIXL will be an effective way of searching for, and characterizing, potential ancient biosignatures on Mars. JF - American Geophysical Union Fall Meeting AU - Allwood, A AU - Hurowitz, J AU - Wade, L W A AU - Hodyss, R P AU - Flannery, D AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P24A EP - 07 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1769963149?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Seeking+ancient+microbial+biosignatures+with+PIXL+on+Mars+2020&rft.au=Allwood%2C+A%3BHurowitz%2C+J%3BWade%2C+L+W+A%3BHodyss%2C+R+P%3BFlannery%2C+D%3BAnonymous&rft.aulast=Allwood&rft.aufirst=A&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-03-03 N1 - CODEN - #07548 ER - TY - JOUR T1 - Observations of high manganese layers by the Curiosity rover at the Kimberley, Gale crater, Mars AN - 1765881582; 2016-013901 AB - The Curiosity rover spent sols 606-630 analyzing an outcrop in a region dubbed the Kimberley. Three rock targets at this location were found to have Mn concentrations strongly elevated above that of martian primary crust: Stephen (sols 611, 619, 630), Neil (sol 619), and Mondooma (sol 625). Stephen and Neil are adjacent to one another and appear as more resistant, fin-like layers subparallel to sedimentary bedding, and are interpreted as bedding-parallel mineralized fractures. Mondooma is located in the same bedrock unit a few meters away and has a similar geological context. After dust cleaning by ChemCam, Stephen and Neil exhibited dark, shiny surfaces. The dust-cleared surface of Mondooma is also dark and exhibits an angular, shallow fracture pattern. ChemCam observations indicate high Mn concentrations nearly equal 20-40 wt% MnO) for all three targets in which Mn abundances are higher in the first shots and decrease systematically with succeeding shots (i.e. increasing depths). The Alpha Particle X-ray Spectrometer (APXS) also analyzed Stephen (sols 627, 629) and observed elevated manganese abundances ( nearly equal 4 wt% MnO) that are the highest detected by that instrument in Gale thus far. APXS data show that Stephen also exhibits relatively high Ni abundances ( nearly equal 1000 ppm) that correlate with Mn. The difference between the two instruments' measurements is likely due to differences in interaction volumes and footprint areas (1.7 cm APXS versus nearly equal 400 mu m ChemCam). In addition to these three high Mn targets, other fin-like features are observed throughout the unit. Based on morphology and chemistry, these thin Mn-rich fins likely represent fracture-filling authigenic minerals emplaced by secondary fluids percolating through the strata. The appearance and correlation between Mn and Ni strongly suggest the presence of Mn-oxide phase(s). Mn-oxides are important because they require extremely strong oxidants and sufficient volumes of liquid water to form. Environments of Mn cycling on Earth are uniformly habitable and Mn-oxides provide for the microbial respiration of a wide variety of reduced compounds. Thus, these results suggest that Mars may have hosted a broader range of habitable environments than previously recognized. JF - American Geophysical Union Fall Meeting AU - Lanza, Nina AU - Wiens, R C AU - Fischer, W W AU - Grotzinger, J P AU - Cousin, A AU - Rice, Melissa S AU - Clark, Ben C AU - Arvidson, R E AU - Hurowitz, Joel AU - Gellert, R AU - McLennan, Scott M AU - Maurice, Sylvestre AU - Mangold, Nicolas AU - Le Mouelic, Stephane AU - Anderson, R B AU - Nachon, Marion AU - Ollila, A AU - Schmidt, M E AU - Berger, J A AU - Blank, J G AU - Clegg, S M AU - Forni, Olivier AU - Hardgrove, C J AU - Hardy, Keian AU - Johnson, Jeffrey R AU - Melikechi, N AU - Newsom, H E AU - Sautter, V AU - Martin-Torres, Javier AU - Zorzano, M P AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P34A EP - 06 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765881582?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Observations+of+high+manganese+layers+by+the+Curiosity+rover+at+the+Kimberley%2C+Gale+crater%2C+Mars&rft.au=Lanza%2C+Nina%3BWiens%2C+R+C%3BFischer%2C+W+W%3BGrotzinger%2C+J+P%3BCousin%2C+A%3BRice%2C+Melissa+S%3BClark%2C+Ben+C%3BArvidson%2C+R+E%3BHurowitz%2C+Joel%3BGellert%2C+R%3BMcLennan%2C+Scott+M%3BMaurice%2C+Sylvestre%3BMangold%2C+Nicolas%3BLe+Mouelic%2C+Stephane%3BAnderson%2C+R+B%3BNachon%2C+Marion%3BOllila%2C+A%3BSchmidt%2C+M+E%3BBerger%2C+J+A%3BBlank%2C+J+G%3BClegg%2C+S+M%3BForni%2C+Olivier%3BHardgrove%2C+C+J%3BHardy%2C+Keian%3BJohnson%2C+Jeffrey+R%3BMelikechi%2C+N%3BNewsom%2C+H+E%3BSautter%2C+V%3BMartin-Torres%2C+Javier%3BZorzano%2C+M+P%3BAnonymous&rft.aulast=Lanza&rft.aufirst=Nina&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-06-17 N1 - CODEN - #07548 ER - TY - JOUR T1 - Investigating the role of small vent volcanism during the development of Tharsis Province, Mars AN - 1765881500; 2016-013941 AB - Clusters of tens to hundreds of small volcanic vents have recently been recognized as a major component of Tharsis Province volcanism. These volcanic fields are formed from distributed-style, possibly monogenetic, volcanism and are composed of low sloped edifices with diameters of tens of kilometers and heights of tens to hundreds of meters. We report a new catalog of these small volcanic vents, now available through the USGS Astrogeology Science Center. This catalog was created with the use of gridded topographic data from the Mars Orbiter Laser Altimeter (MOLA) and images from the Thermal Emission Imaging System (THEMIS) and the High Resolution Stereo Camera (HRSC). We are now investigating isolated clusters of distributed volcanism in Tharsis with this dataset. We hypothesize that these clusters are formed from significant magmatic events that played a large role in the development of Tharsis. Currently, the catalog contains 1075 unique volcanic vents in the Tharsis Province. With the catalog, potentially isolated volcano clusters are identified with vent density estimation. Vent intensity for clusters is found to be 1 vent per 1000 sq km or less. Crater retention rates for one such cluster, Syria Planum, indicates that these distributed volcanic systems might continue as long as 700 Ma, or that monogenetic volcanic systems overprint older systems. Using a modified basal outlining algorithm with MOLA gridded data, shield volumes are found to be between 1-20 cubic km. Current results show distributed-style volcanism occurring in Tharsis orders of magnitude more dispersed than analogous volcano clusters on Earth, while individual edifices are found to be an order of magnitude larger than volcanoes in Earth clusters. Proof of concept results are reported for three identified clusters: Arsia Mons Caldera, Syria Planum, and Southern Pavonis Mons. JF - American Geophysical Union Fall Meeting AU - Richardson, J A AU - Bleacher, Jacob E AU - Connor, C AU - Connor, L AU - Glaze, Lori S AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P41B EP - 3905 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765881500?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Investigating+the+role+of+small+vent+volcanism+during+the+development+of+Tharsis+Province%2C+Mars&rft.au=Richardson%2C+J+A%3BBleacher%2C+Jacob+E%3BConnor%2C+C%3BConnor%2C+L%3BGlaze%2C+Lori+S%3BAnonymous&rft.aulast=Richardson&rft.aufirst=J&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-02-18 N1 - CODEN - #07548 ER - TY - JOUR T1 - Probing planetary bodies for subsurface volatiles; GEANT4 models of gamma ray, fast, epithermal, and thermal neutron response to active neutron illumination AN - 1765881489; 2016-013975 AB - Using an active source of neutrons as an in situ probe of a planetary body has proven to be a powerful tool to extract information about the presence, abundance, and location of subsurface volatiles without the need for drilling. The Dynamic Albedo of Neutrons (DAN) instrument on Curiosity is an example of such an instrument and is designed to detect the location and abundance of hydrogen within the top 50 cm of the Martian surface. DAN works by sending a pulse of neutrons towards the ground beneath the rover and detecting the reflected neutrons. The intensity and time of arrival of the reflection depends on the proportion of water, while the time the pulse takes to reach the detector is a function of the depth at which the water is located. Similar instruments can also be effective probes at the polar-regions of the Moon or on asteroids as a way of detecting sequestered volatiles. We present the results of GEANT4 particle simulation models of gamma ray, fast, epithermal, and thermal neutron responses to active neutron illumination. The results are parameterized by hydrogen abundance, stratification and depth of volatile layers, versus the distribution of neutron and gamma ray energy reflections. Models will be presented to approximate Martian, lunar, and asteroid environments and would be useful tools to assess utility for future NASA exploration missions to these types of planetary bodies. JF - American Geophysical Union Fall Meeting AU - Chin, Gordon AU - Sagdeev, R AU - Su, J J AU - Murray, J AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P43E EP - 03 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765881489?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Probing+planetary+bodies+for+subsurface+volatiles%3B+GEANT4+models+of+gamma+ray%2C+fast%2C+epithermal%2C+and+thermal+neutron+response+to+active+neutron+illumination&rft.au=Chin%2C+Gordon%3BSagdeev%2C+R%3BSu%2C+J+J%3BMurray%2C+J%3BAnonymous&rft.aulast=Chin&rft.aufirst=Gordon&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-02-18 N1 - CODEN - #07548 ER - TY - JOUR T1 - A new mechanism for the formation of regolith on asteroids AN - 1765881461; 2016-013979 AB - The soil of asteroids, like that of the Moon, Mars, and other rocky bodies in the Solar System, is made of a layer of pebbles, sand, and dust called regolith. Previous studies suggested that the regolith of asteroids is made from material ejected from impacts and re-accumulated on the surface and from boulders that are comminuted by micrometeoroid impacts. However, this classical scenario of regolith formation has problems to explain the regolith on km-sized and smaller asteroids: laboratory experiments and impact modelling have shown that the impact fragments can reach escape velocities and breaks free from the gravitational pull of these small asteroids, indicating the impact mechanism is not the dominant process for regolith creation. Other studies also reveal that there is too much regolith on small asteroids' surfaces to have been deposited there solely through impacts over the millions of years of asteroids' evolution. We discovered that another process is capable of gently breaking rocks at the surface of asteroids: thermal fatigue by temperature cycling. As asteroids spin about their rotation axes, their surfaces plunge in and out of shadow resulting in large surface temperature variations. The rapid heating and cooling creates thermal expansion and contraction in the asteroid material, initiating cracking and propagating existing cracks. As the process is repeated over and over, the crack damage increases with time, leading eventually to rock fragmentation (and production of new regolith). To study this process, in the laboratory, we subjected meteorites, used as asteroid material analogs, to 37 days of thermal cycles similar to those occurring on asteroids. We measured cracks widening at an average rate of 0.5 mm/y. Some fragments were also produced, indicating meteorite fragmentation. To scale our results to asteroid lifetime, we incorporated our measurements into a fracture model and we deduced that thermal cycling is more efficient than micrometeorite bombardment at fragmenting rock over millions of years on asteroids (see Delbo et al. 2014. Nature 508, 233-236). We describe also some of the implications of this discovery: for instance, that production of fresh regolith originating in thermal fatigue fragmentation may be an important process for the rejuvenation of the surfaces of near-Earth asteroids. JF - American Geophysical Union Fall Meeting AU - Delbo, M AU - Libourel, G AU - Wilkerson, J AU - Murdoch, Naomi AU - Michel, P AU - Ramesh, K T AU - Ganino, C AU - Verati, Chrystele AU - Marchi, S AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P43F EP - 02 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765881461?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=A+new+mechanism+for+the+formation+of+regolith+on+asteroids&rft.au=Delbo%2C+M%3BLibourel%2C+G%3BWilkerson%2C+J%3BMurdoch%2C+Naomi%3BMichel%2C+P%3BRamesh%2C+K+T%3BGanino%2C+C%3BVerati%2C+Chrystele%3BMarchi%2C+S%3BAnonymous&rft.aulast=Delbo&rft.aufirst=M&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-02-18 N1 - CODEN - #07548 ER - TY - JOUR T1 - Hypotheses on the source of potassium enrichment in some Gale crater rocks AN - 1765879999; 2016-014030 AB - K2O contents of rocks and soils were measured or estimated with three instruments on Curiosity in Gale Crater, Mars: ChemCam (laser induced remote sensing), APXS (alpha -particle X-ray spectroscopy), and CheMin (X-ray diffraction analysis). In some sedimentary rocks the K2O contents are consistent with the rock's mineralogy, but in others K2O is higher than expected for the mineralogy. We have considered five hypotheses for the high abundance of K2O in Gale crater sediments. Hypothesis I; K2O is enriched in plagioclase feldspar due to crystallization at high temperatures and pressures. Hypothesis II, some sedimentary rocks are enriched in K2O-rich feldspars. Hypothesis III; rocks may have been enriched in K2O by secondary mineral formation. Hypothesis IV; dust has been incorporated into the rocks. Hypothesis V, K2O is contained in an amorphous or a nanocrystalline phase. Hypotheses IV and V are easily invalidated because the measured and inferred compositions of dust and amorphous and nanocrystalline material are not sufficiently enriched in K2O to cause the observed K2O in sedimentary rocks. Hypothesis I is possible because high-K2O plagioclase feldspars are sometimes observed in martian meteorites and sediments may have incorporated feldspars of these compositions. Hypothesis II is supported if potassium-rich feldspars, which have been identified by XRD of Gale crater sediments and have been found in some Martian meteorites, are concentrated in Gale sediments by fluvial processes. Hypothesis III is supported if correlations of K2O with other components of alteration minerals or secondary phases are found such as in a K2O-rich phyllosilicate, jarosite, alkali feldspar, or a potassium and fluorine-bearing phase. Hypotheses I and II may explain the elevated K2O in Gale Crater sediments, however, potassium enrichments must be compatible with mineralogy. Hypotheses III is supported if a K2O-rich secondary phase or phases can be identified. The cause of K2O enrichment could reveal much about past igneous, geochemical, and physical processes in Gale crater. JF - American Geophysical Union Fall Meeting AU - Fisk, M R AU - Dyar, M D AU - Bridges, J AU - Anderson, R B AU - Schmidt, M E AU - Gasnault, Olivier AU - Mangold, Nicolas AU - Tokar, R L AU - Wiens, R C AU - Gellert, R AU - Blake, D F AU - Schwenzer, S P AU - Edwards, P AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P54B EP - 08 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765879999?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Hypotheses+on+the+source+of+potassium+enrichment+in+some+Gale+crater+rocks&rft.au=Fisk%2C+M+R%3BDyar%2C+M+D%3BBridges%2C+J%3BAnderson%2C+R+B%3BSchmidt%2C+M+E%3BGasnault%2C+Olivier%3BMangold%2C+Nicolas%3BTokar%2C+R+L%3BWiens%2C+R+C%3BGellert%2C+R%3BBlake%2C+D+F%3BSchwenzer%2C+S+P%3BEdwards%2C+P%3BAnonymous&rft.aulast=Fisk&rft.aufirst=M&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-02-18 N1 - CODEN - #07548 ER - TY - JOUR T1 - Vesta's Pinaria region; a window on Vesta's ancient crust AN - 1765879984; 2016-013982 AB - Asteroid 4 Vesta was the first of the NASA Dawn mission's two asteroid targets. After its 14-month orbit its instruments and science team produced maps from which geology, mineralogy, elemental composition and internal structure of Vesta were characterized. Using data from both the high altitude and low altitude orbits, we examine visible and infrared spectra from the Pinaria region which is located between 21 degrees -66 degrees S lat and 0 degrees -90 degrees E long in the Claudia coordinate system. We present data from the visible and near-infrared spectrometer to derive band parameter maps that are interpreted in terms of mineralogy and petrology. Within the Pinaria quadrangle is Matronalia Rupes, a rim of the nearly equal 505 km south polar basin, Rheasilvia. Spectra from this rim wall have band parameters of low-iron orthopyroxene that are a marker of diogenite meteorites. Studies of diogenites support their origin from the lower crust of the basaltic achondrite parent body, which has been demonstrated via analysis of Dawn's data sets, to be Vesta. Regolith on the smooth plains Northwest of the rim has band parameters indicative of howardites, a mixture of lower crust diogenites and crustal eucrites. The regolith here has more of a diogenitic component than eucritic, suggesting that basin ejecta mixed with the eucritic crust after formation of Rheasilvia. Another aspect of the Pinaria region is that the spectral signature of 2.8 mu m OH absorption is most often absent, making this region anhydrous compared to other regions more northerly and further east of Pinaria. Current analysis suggests that hydrated material is exogenic to Vesta. Examination of the spectra of the Pinaria crater's floor compared to its wall shows a broader 1.9 mu m band of varying absorption depth that indicates a range of pyroxene composition that is expected in a regolith consisting of mixed components from different depths. The lower, anhydrous crust of Vesta is revealed in the Pinaria region. JF - American Geophysical Union Fall Meeting AU - McFadden, L A AU - De Sanctis, Maria Cristina AU - Ammannito, Eleonora AU - Combe, Jean Philippe AU - Pieters, C M AU - Tosi, Federico AU - Nathues, A AU - Stephan, Katrin AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P43F EP - 05 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765879984?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Vesta%27s+Pinaria+region%3B+a+window+on+Vesta%27s+ancient+crust&rft.au=McFadden%2C+L+A%3BDe+Sanctis%2C+Maria+Cristina%3BAmmannito%2C+Eleonora%3BCombe%2C+Jean+Philippe%3BPieters%2C+C+M%3BTosi%2C+Federico%3BNathues%2C+A%3BStephan%2C+Katrin%3BAnonymous&rft.aulast=McFadden&rft.aufirst=L&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-02-18 N1 - CODEN - #07548 ER - TY - JOUR T1 - New statistical methods for the analysis of the cratering on Venus AN - 1765879967; 2016-013846 AB - The sparse crater population ( approximately 1000 craters) on Venus is the most important clue of determining the planet's surface age and aids in understanding its geologic history. What processes (volcanism, tectonism, weathering, etc.) modify the total impact crater population? Are the processes regional or global in occurrence? The heated debate on these questions points to the need for better approaches. We present new statistical methods for the analysis of the crater locations and characteristics. Specifically: 1) We produce a map of crater density and the proportion of no halo craters (inferred to be modified) by using generalized additive models, and smoothing splines with a spherical spline basis set. Based on this map, we are able to predict the probability of a crater has no halo given that there is a crater at that point. We also obtain a continuous representation of the ratio of craters with no halo as a function of crater density. This approach allows us to look for regions that appear to have experienced more or less modification, and are thus potentially older or younger. 2) We examine the randomness or clustering of distributions of craters by type (e.g. dark floored, intermediate). For example, for dark floored craters we consider two hypotheses: i) the dark floored craters are randomly distributed on the surface; ii) the dark floored craters are random given the locations of the crater population. Instead of only using a single measure such as average nearest neighbor distance, we use the probability density function of these distances, and compare it to complete spatial randomness to get the relative probability density function. This function gives us a clearer picture of how and where the nearest neighbor distances differ from complete spatial randomness. We also conduct statistical tests of these hypotheses. Confidence intervals with specified global coverage are constructed. Software to reproduce the methods is available in the open source statistics software R. Both the methods and the code are extensible to similar marked spatial point process applications. JF - American Geophysical Union Fall Meeting AU - Xie, M AU - Smrekar, S E AU - Handcock, M S AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P21B EP - 3915 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765879967?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=New+statistical+methods+for+the+analysis+of+the+cratering+on+Venus&rft.au=Xie%2C+M%3BSmrekar%2C+S+E%3BHandcock%2C+M+S%3BAnonymous&rft.aulast=Xie&rft.aufirst=M&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-02-18 N1 - CODEN - #07548 ER - TY - JOUR T1 - Remotely detectable biosignatures of anoxygenic phototrophs AN - 1765879949; 2016-013879 AB - Many astrobiological/exobiological studies have been directed at searching for evidence of life on planetary bodies within our solar system, but the search for life does not have to be restricted to our stellar neighborhood. The field of exoplanet research has grown rapidly over the last several years. Studies have moved beyond detection to assessing the habitability and biosignatures of these worlds. The biosignatures considered thus far focus on biogenic gases and planetary surface features, such as the light reflected from the surface of plants to generate the "red edge" of vegetation. Much work has focused on detecting biosignatures of higher life forms (vegetation) on exoplanets. However, land plants only appeared on the Earth 450 million years ago, and required a long path of photosynthetic evolution. There is a dearth of studies examining how light might interact with much simpler, more evolutionarily ancient pigmented communities, such as photosynthetic microbes. These anoxygenic phototrophs, which have inhabited Earth for nearly 80% of its history, may dominate exoplanets at a similar stage of evolution as the Archean or Paleoproterozoic Earth. Similar to the remotely detectable "red edge" of chlorophyll a - containing vegetation, we measured the reflectance spectra of pure cultures and environmental samples of purple sulfur, purple non-sulfur, heliobacteria, green sulfur, and green non-sulfur anoxygenic phototrophs. We observed an increase in reflectivity just past the absorption maximum for the bacteriochlorophyll pigments. Since this reflectance feature is shifted into the NIR compared to that of the red edge of vegetation, we're calling this the "NIR edge" of anoxygenic phototrophs. The bacteriochlorophyll pigments are particularly well suited to absorb the far-red and near-infrared radiation emitted by M dwarf stars, the most common type of star in our galaxy. Therefore these phototrophs serve as model organisms for photosynthesis adapted to alternative spectral environments. JF - American Geophysical Union Fall Meeting AU - Parenteau, M N AU - Kiang, N Y AU - Blankenship, R E AU - Sanroma, E AU - Palle Bago, E AU - Hoehler, T M AU - Pierson, B K AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P21D EP - 3964 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 12:Stratigraphy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765879949?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Remotely+detectable+biosignatures+of+anoxygenic+phototrophs&rft.au=Parenteau%2C+M+N%3BKiang%2C+N+Y%3BBlankenship%2C+R+E%3BSanroma%2C+E%3BPalle+Bago%2C+E%3BHoehler%2C+T+M%3BPierson%2C+B+K%3BAnonymous&rft.aulast=Parenteau&rft.aufirst=M&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Astrobiology&rft.issn=15311074&rft_id=info:doi/10.1089%2Fast.2013.1127 LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-06-17 N1 - CODEN - #07548 ER - TY - JOUR T1 - Visible and near-infrared spectra of manganese oxides; detecting high manganese phases in Curiosity Mastcam multispectral images AN - 1765879904; 2016-013902 AB - The Mars Science Laboratory Curiosity rover's Chemcam instrument has identified manganese in relatively high abundance on several rock surfaces. The manganese abundances are several orders of magnitude greater than has been previously identified on Mars, indicating the presence of a manganese-rich phase. Although the specific phase has yet to be identified, these results suggest that the martian surface may have been much more highly oxidizing than has previously been recognized. The presence of a manganese-rich phase could provide an additional indicator of habitable aqueous environments. Given the importance of manganese for understanding past habitability, and the high abundances identified with Chemcam, we investigate the utility of using Mastcam multispectral imaging surveys to identify areas for subsequent detailed analysis with Chemcam. Vempati et al. showed that Mn (super 3+) affect the reflectance spectra of Mn-bearing minerals. Specifically, relatively weak features due to electronic transitions and crystal field effects are observed in Mn-enriched hematites and geothites at 454, 554, 596 and 700 nm. The Mastcam-34 medium angle camera has filter band-passes at 550, 675 and 750 nm, and we will explore the utility of using these bands (or combinations thereof) to determine if there is a contribution of Mn-bearing phases on spectra, specifically those that have been identified as having elevated Mn with Chemcam. The most common Mn-bearing mineral phase in terrestrial varnishes, Birnessite, has charge-transfer features that are similar to Fe-oxides but are centered at slightly longer wavelength band positions. Longer wavelength features are also common for other Mn-oxides, and this could be used to distinguish these phases from other Fe-oxide components. In this study we will present visible to near-infrared (0.4 - 3 mu m) reflectance spectra on a suite of Mn-oxide laboratory standards. The set of standards includes Mn-oxide abundances that vary from less than 1 up to nearly equal 75 wt.%. Spectra will be downsampled to Mastcam bandpasses to determine if the effects of Mn-bearing phases could be identified from Mastcam multispectral observations in Gale Crater. JF - American Geophysical Union Fall Meeting AU - Hardgrove, C J AU - Lanza, Nina AU - Bell, J F, III AU - Wiens, R C AU - Johnson, Jeffrey R AU - Morris, Richard V AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P34A EP - 07 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765879904?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Visible+and+near-infrared+spectra+of+manganese+oxides%3B+detecting+high+manganese+phases+in+Curiosity+Mastcam+multispectral+images&rft.au=Hardgrove%2C+C+J%3BLanza%2C+Nina%3BBell%2C+J+F%2C+III%3BWiens%2C+R+C%3BJohnson%2C+Jeffrey+R%3BMorris%2C+Richard+V%3BAnonymous&rft.aulast=Hardgrove&rft.aufirst=C&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-02-18 N1 - CODEN - #07548 ER - TY - JOUR T1 - Global volcanism on Mercury at about 3.8 Ga AN - 1765879902; 2016-013852 AB - Smooth plains occupy c. 27% of the surface of Mercury. Embayment relations, spectral contrast with surroundings, and morphologic characteristics indicate that the majority of these plains are volcanic. The largest deposits are located in Mercury's northern hemisphere and include the extensive northern plains (NP) and the Caloris interior and exterior plains (with the latter likely including basin material). Both the NP and Caloris deposits are, within statistical error, the same age ( approximately 3.8-3.9 Ga). To test whether this age reflects a period of global volcanism on Mercury, we determined crater size-frequency distributions for four smooth plains units in the planet's southern hemisphere interpreted to be volcanic. Two deposits are situated within the Beethoven and Tolstoj impact basins; two are located close to the Debussy and the Alver and Disney basins, respectively. Each deposit hosts two populations of craters, one that postdates plains emplacement and one that consists of partially to nearly filled craters that predate the plains. This latter population indicates that some time elapsed between formation of the underlying basement and plains volcanism, though we cannot statistically resolve this interval at any of the four sites. Nonetheless, we find that the age given by the superposed crater population in each case is approximately 3.8 Ga, and crater density values are consistent with those for the NP and Caloris plains. This finding supports a global phase of volcanism near the end of the late heavy bombardment of Mercury and may indicate a period of widespread partial melting of Mercury's mantle. Notably, superposition relations between smooth plains, degraded impact structures, and contractional landforms suggest that by this time interior cooling had already placed Mercury's lithosphere in horizontal compression, tending to inhibit voluminous dike-fed volcanism such as that inferred responsible for the NP. Most smooth plains units, including the Caloris plains and our four study sites, are spatially associated with impact structures; even the NP lie in a regional depression that may be impact-related. Because impacts remove overburden, deposit subsurface heat, and relax pre-existing stress, basins and craters may represent preferential sites for volcanic resurfacing on a globally contracting planet. JF - American Geophysical Union Fall Meeting AU - Byrne, P K AU - Ostrach, L R AU - Denevi, B W AU - Head, J W, III AU - Hauck, S A, II AU - Murchie, S L AU - Solomon, S C AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P21C EP - 3932 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765879902?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Global+volcanism+on+Mercury+at+about+3.8+Ga&rft.au=Byrne%2C+P+K%3BOstrach%2C+L+R%3BDenevi%2C+B+W%3BHead%2C+J+W%2C+III%3BHauck%2C+S+A%2C+II%3BMurchie%2C+S+L%3BSolomon%2C+S+C%3BAnonymous&rft.aulast=Byrne&rft.aufirst=P&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-02-18 N1 - CODEN - #07548 ER - TY - JOUR T1 - The water regime of Ceres and its potential habitability AN - 1765879882; 2016-013981 AB - Ceres is the largest object in the main asteroid belt of the Solar System, with a diameter of 940 km and accounting for nearly equal 1/3 of the total mass of the asteroid belt. The recent unequivocal discovery of water vapor associated with localized sources on Ceres by Herschel Space Telescope confirmed its enrichment in volatiles as suggested by its low density and previous observations and theoretical models. Hence water must have played a significant role in the evolution of Ceres and even affected its current state. Spectral reflectance of Ceres surface reveals the pervasive signature of hydrated minerals and carbonates. The albedo and spectral homogeneity suggest that processes involving liquid-phase activity at the global scale may have occurred in the past. The current evolution models of Ceres indicate that liquid water was present following an early differentiation and drove hydrothermal activity for a few tens of My since its formation. Silicate leaching could lead to the concentration of soluble species in an ocean that could play a role in lowering the freezing temperature of that layer. The likely accretion of low-eutectic species such as ammonia hydrates could have promoted the long-term preservation of a deep liquid layer at the base of an icy shell over extended periods of time (possibly until present). The significance of water on Ceres and its active nature as revealed by Herschel observations not only suggest that Ceres is an object that potentially hides important clues about volatile history in the inner solar system, but also indicate a world of potential astrobiological interest. The Dawn spacecraft is scheduled to arrive at Ceres in March 2015 to perform detailed geological, spectroscopic, compositional, and gravity mapping. In the mean time, we have begun an observing campaign using ground- and space-based facilities covering wavelengths from UV to sub-mm, to fully characterize the nature of water and hydration features detected at Ceres, and to facilitate theoretical studies. We expect our knowledge of the history and current status of water on Ceres to be significantly advanced in the coming years. Part of this work was carried out at the Jet Propulsion Laboratory, California Institute of Technology, under contract with NASA. JF - American Geophysical Union Fall Meeting AU - Li, J Y AU - Sykes, M V AU - Castillo, Julie C AU - McFadden, L A AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P43F EP - 04 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765879882?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=The+water+regime+of+Ceres+and+its+potential+habitability&rft.au=Li%2C+J+Y%3BSykes%2C+M+V%3BCastillo%2C+Julie+C%3BMcFadden%2C+L+A%3BAnonymous&rft.aulast=Li&rft.aufirst=J&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-02-18 N1 - CODEN - #07548 ER - TY - JOUR T1 - Analogue sites for Mars missions; a report from two workshops AN - 1765879645; 2016-013881 AB - Fieldwork, at terrestrial sites that are analogous in some way to Mars, has a key role in defining questions addressed by Mars missions. For MSL, the question is whether its landing site was habitable, and for Mars 2020, the question is how do we search for and what are signs of life in ancient habitable environments. Implementing these investigations by means of a rover mission on a distant planetary surface has challenges due to a limited set of tools and period of operations. Using this context of planetary missions is important in shaping how analog research can be used to advance planetary science. Following a successful 2010 AGU fall meeting session entitled Analogue sites for Mars missions, two community workshops were held at The Woodlands, TX March 2011 and the Carnegie Institute of Washington in July 2013. These activities represent an ongoing dialogue with the analog and mission communities. The AGU session solicited presentations of current analog research relevant to MSL, at which time the landing site selection process was still considering four final sites. The 2011 Woodlands workshop solicited details on representative science questions and analogue sites by means of an abstract template. The output from The Woodlands workshop was an initial metric to assess the utility of analog sites against specific science questions, as well as recommendations for future activities. The 2013 Carnegie workshop, followed up on some of the recommendations from 2011. Both on-line interactive dialogue and in person discussions targeted broad topics, including "the advantages and problems of using a great terrestrial analog for field testing", and "knowing what we currently do about Mars, what would be the best place on the planet to collect the first suite of samples to be returned to Earth? What would be appropriate analog sites on Earth?". The results and recommendations from both workshops are summarized to publicize and stimulate this ongoing discussion. JF - American Geophysical Union Fall Meeting AU - Hipkin, V AU - Voytek, M A AU - Glamoclija, M AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P21D EP - 3966 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765879645?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Analogue+sites+for+Mars+missions%3B+a+report+from+two+workshops&rft.au=Hipkin%2C+V%3BVoytek%2C+M+A%3BGlamoclija%2C+M%3BAnonymous&rft.aulast=Hipkin&rft.aufirst=V&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-02-18 N1 - CODEN - #07548 ER - TY - JOUR T1 - Infrared spectral observations while drilling into a frozen lunar simulant AN - 1765879526; 2016-013828 AB - Past and continuing observations indicate an enrichment of volatile materials in lunar polar regions. While these volatiles may be located near the surface, access to them will likely require subsurface sampling, during which it is desirable to monitor the volatile content. In a simulation of such activities, a multilayer lunar simulant was prepared with differing water content, and placed inside a thermal vacuum chamber at Glenn Research Center (GRC). The soil profile was cooled using liquid nitrogen. In addition to the soil, a drill and infrared (IR) spectrometer ( approximately 1600-3400 nm) were also located in the GRC chamber. We report the spectral observations obtained during a sequence where the drill was repeatedly inserted and extracted, to different depths, at the same location. We observe an overall increase in the spectral signature of water ice over the duration of the test. Additionally, we observe variations in the water ice spectral signature as the drill encounters different layers. JF - American Geophysical Union Fall Meeting AU - Roush, T L AU - Colaprete, A AU - Thompson, S AU - Cook, A AU - Kleinhenz, J AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P13D EP - 3863 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765879526?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Infrared+spectral+observations+while+drilling+into+a+frozen+lunar+simulant&rft.au=Roush%2C+T+L%3BColaprete%2C+A%3BThompson%2C+S%3BCook%2C+A%3BKleinhenz%2C+J%3BAnonymous&rft.aulast=Roush&rft.aufirst=T&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-02-18 N1 - CODEN - #07548 ER - TY - JOUR T1 - Don Quixote pond sediments; surface and subsurface chemistry and mineralogy AN - 1765879133; 2016-013930 AB - Don Quixote Pond, like Don Juan Pond in the South Fork of Wright Valley, Antarctica, is a model for calcium and chlorine weathering and distribution on Mars. It is located in the western part of the North Fork about 100 m above Mean Seawater Level; its brine is seasonally frozen [1]. Field observations show zones of discoloration which grow lighter with distance from the pond edges. Four sediment cores, a set of radial surface samples, special surface samples, and samples of local rocks were obtained [2]. We report on chemical and mineral analyses of traverse samples and on two cores. Core DQ20 is a northeastern shoreline core. Its soluble salt concentration exceeds 200 micromoles/g in the top 5 cm, and then falls to less than 70 micromoles/g at the permafrost depth of 15 cm. These concentrations are low when compared to similarly positioned locations at Don Juan Pond and to cores from Prospect Mesa close to Lake Vanda, Wright Valley. Halite, soda niter, tachyhydrite and/bischovite are suggested from the ionic molar relationships Measured halite concentrations of surface samples, collected along a traverse of 35 m from the pond outwards, range from over 5% to trace amounts, decreasing with distance. Gypsum is also present in almost all of these samples ranging from 0.2% to 2.6%, but does not exhibit a trend. However, in core DQ35, located at a distance of 15 m along the traverse, gypsum decreases from 2.5% to 0.6% from the surface to the permafrost depth of 12 cm. While DQ35 and radial samples show high quartz and albite abundance, samples that contained visible encrustations and evaporites are low in these minerals and rich in highly diverse alteration products. Don Juan Basin ponds may have formed by a complex surface water mobilization of weathering products [3] and local groundwater action [4,5]. In contrast, Don Quixote pond mineralogy and chemistry may be consistent with a less complex shallow and deep groundwater system origin [1]. [1] Harris H.J.H. & Cartwright K., 1981, in: Dry Valley Drilling Project, L.D. McGinnis, ed., Antarctic Research Series, 33, 193-214. [2] Gibson E. K. et al., 1983, Journal of Geophysical Research, 88, A912-A928. [3] Dickson J. L. et al., 2013, Sci. Rep. 3: 1166. [4] Englert P. et al., GSA Annual Meeting 2013, abs. T65, 11-4. [5] Harris H.J.H., 1981, Ph.D. Dissertation, Univ. of Illinois. JF - American Geophysical Union Fall Meeting AU - Englert, P A J AU - Bishop, J L AU - Patel, Shital AU - Gibson, Everett K AU - Koeberl, Christian AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P41A EP - 3893 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765879133?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Don+Quixote+pond+sediments%3B+surface+and+subsurface+chemistry+and+mineralogy&rft.au=Englert%2C+P+A+J%3BBishop%2C+J+L%3BPatel%2C+Shital%3BGibson%2C+Everett+K%3BKoeberl%2C+Christian%3BAnonymous&rft.aulast=Englert&rft.aufirst=P+A&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - Number of references - 5 N1 - PubXState - DC N1 - Last updated - 2016-02-18 N1 - CODEN - #07548 ER - TY - JOUR T1 - Analysis and comparison of physical properties and morphology of impact melt flows on Venus and the Moon AN - 1765879114; 2016-013845 AB - The cratering process sometimes produces melt that flows out of and away from the impact crater. These impact melt flows have been studied in the past using remote sensing on both Venus and the Moon. The purpose of this study is use radar to compare the reflectivity, morphology, and roughness of impact melt flows on Venus and the Moon. For the Venus portion of the study, we used reflectivity data from the Magellan mission to examine flow reflectivity and morphology, and circular polarization ratio (CPR) data from the Arecibo Observatory to examine flow roughness. For the Moon portion of the study, we used Mini-RF (on Lunar Reconnaissance Orbiter) data to examine flow reflectivity, morphology, and CPR. Reflectivity values were averaged and morphology was recorded for a sample of 25 Venus craters, and CPR values were averaged for five of these craters that were in range of the Arecibo data and had large enough flows that were resolvable in the ground based polarimetry data. The CPR values of the five crater sample ranged from approximately -0.032 to approximately 0.287 over a range of incidence angles from 17.5 degrees to 61.8 degrees . The Venus impact melt flows are brighter and generally have higher CPR values than their surroundings, have both crisp and diffuse edges, and both reflectivity and CPR often vary along the length of the flow. The impact melt flows have similar CPR values to those measured for volcanic flows on Venus, indicating similar surface roughness. The Venus impact melt flows appear to be smoother than those on the Moon based on a comparison of CPR values at similar incidence angles. The Venus and lunar impact melt flows have different trends in crater diameter versus flow length relative to crater diameter, although smaller (<30 km diameter) craters on both objects have the longest flows relative to crater diameter. We will present a comparison of the results from Venus to those of impact melt flows on the Moon to investigate the effect that the presence of a thick, hot atmosphere has on impact melt emplacement process. JF - American Geophysical Union Fall Meeting AU - Dong, C AU - Carter, L M AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P21B EP - 3914 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765879114?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Analysis+and+comparison+of+physical+properties+and+morphology+of+impact+melt+flows+on+Venus+and+the+Moon&rft.au=Dong%2C+C%3BCarter%2C+L+M%3BAnonymous&rft.aulast=Dong&rft.aufirst=C&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-02-18 N1 - CODEN - #07548 ER - TY - JOUR T1 - A new approach to characterizing landslide hazards with global crowd sourcing AN - 1765878987; 2016-014045 AB - Landslide disasters cause thousands of fatalities each year and cumulatively produce more economic damage than most other natural disasters. However, the number and distribution of landslides remain poorly quantified due to their small size and the absence of local, regional or global observing or reporting mechanisms. As a result, there are very few global databases that describe landslide hazards. Characterizing the socioeconomic impacts of landslide hazards worldwide presents an even more challenging task due to the various reporting biases or information gaps in existing regional and global sources. An online system has been developed to improve reporting of landslide hazards at the global scale that leverages crowd sourcing capabilities. Through this portal, users are able to input landslide information in a series of specified fields, including the date, location, impacts, trigger, and setting of the event. They are also able to link to photos so that other users can improve the characterization of the landslide event based on additional information or expert opinion. This hazard portal and editor provides a foundation to involve citizens in reporting, visualizing and sharing landslide events while improving a global landslide database and introducing them to other geospatial data in the process. A global landslide catalog of over 6,000 events developed at NASA Goddard Space Flight Center currently anchors this system. This research presents this new crowd-based system and outlines the technology used in developing this system. Preliminary findings of societal metrics, limitations on this type of interactive crowd sourcing portal, and lessons learned from the initial launch of this system will also be presented. JF - American Geophysical Union Fall Meeting AU - Bach Kirschbaum, D AU - Cappelaere, P G AU - Stanley, T AU - Hall, B AU - Franchek, M AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract PA33A EP - 07 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765878987?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=A+new+approach+to+characterizing+landslide+hazards+with+global+crowd+sourcing&rft.au=Bach+Kirschbaum%2C+D%3BCappelaere%2C+P+G%3BStanley%2C+T%3BHall%2C+B%3BFranchek%2C+M%3BAnonymous&rft.aulast=Bach+Kirschbaum&rft.aufirst=D&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-02-18 N1 - CODEN - #07548 ER - TY - JOUR T1 - Aqueous alteration of Endeavour crater rim apron rocks AN - 1765878925; 2016-013918 AB - Mars Exploration Rover Opportunity is exploring Noachian age rocks of the rim of 22 km diameter Endeavour crater. Overlying the pre-impact lithologies and rim breccias is a thin apron of fine-grained sediments, the Grasberg fm, forming annuli on the lower slopes of rim segments. Hesperian Burns fm sandstones overly the Grasberg fm. Grasberg rocks have major element compositions that are distinct from Burns fm sandstones, especially when comparing interior compositions exposed by the Rock Abrasion Tool. Grasberg rocks are also different from Endeavour rim breccias, but have general compositional similarities to them. Grasberg sediments are plausibly fine-grained materials derived from the impact breccias. Veins of CaSO (sub 4) transect Grasberg fm rocks demonstrating post-formation aqueous alteration. Minor/trace elements show variations consistent with mobilization by aqueous fluids. Grasberg fm rocks have low Mn and high Fe/Mn ratios compared to the other lithologies. Manganese likely was mobilized and removed from the Grasberg host rock by redox reactions. We posit that Fe (super 2+) from acidic solutions associated with formation of the Burns sulfate-rich sandstones acted as an electron donor to reduce more oxidized Mn to Mn (super 2+) . The Fe contents of Grasberg rocks are slightly higher than in other rocks suggesting precipitation of Fe phases in Grasberg materials. Pancam spectra show that Grasberg rocks have a higher fraction of ferric oxide minerals than other Endeavour rim rocks. Solutions transported Mn (super 2+) into the Endeavour rim materials and oxidized and/or precipitated it in them. Grasberg has higher contents of the mobile elements K, Zn, Cl, and Br compared to the rim materials. Similar enrichments of mobile elements were measured by the Spirit APXS on West Spur and around Home Plate in Gusev crater. Enhancements in these elements are attributed to interactions of hydrothermal acidic fluids with the host rocks. Interactions of fluids with the Grasberg fm postdate the genesis of the Endeavour rim phyllosilicates. The aqueous alteration history of Endeavour rim rocks is complicated by different styles of alteration that have spanned the Noachian and Hesperian. Late stage acidic aqueous alteration of Grasberg fm materials is likely penecontemporaneous with the diagenesis of the sulfate-rich sediments of Meridiani Planum. JF - American Geophysical Union Fall Meeting AU - Ming, Douglas W AU - Mittlefehldt, David W AU - Gellert, R AU - Clark, Ben C AU - Morris, Richard V AU - Yen, Albert S AU - Arvidson, R E AU - Crumpler, Larry S AU - Farrand, William H AU - Grant, J A, III AU - Jolliff, B L AU - Parker, Timothy J AU - Peretyazhko, T AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P41A EP - 3881 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765878925?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Aqueous+alteration+of+Endeavour+crater+rim+apron+rocks&rft.au=Ming%2C+Douglas+W%3BMittlefehldt%2C+David+W%3BGellert%2C+R%3BClark%2C+Ben+C%3BMorris%2C+Richard+V%3BYen%2C+Albert+S%3BArvidson%2C+R+E%3BCrumpler%2C+Larry+S%3BFarrand%2C+William+H%3BGrant%2C+J+A%2C+III%3BJolliff%2C+B+L%3BParker%2C+Timothy+J%3BPeretyazhko%2C+T%3BAnonymous&rft.aulast=Ming&rft.aufirst=Douglas&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-02-18 N1 - CODEN - #07548 ER - TY - JOUR T1 - Composition of Rheasilvia basin on asteroid Vesta AN - 1765878696; 2016-013983 AB - The focus of the present study is the compositional analysis of small-scale surface features within the Rheasilvia basin on asteroid Vesta. We are using data acquired by the Visible and InfraRed mapping Spectrometer (VIR) on the Dawn mission. Nominal spatial resolution of the data set considered in this study is 70m/px. The portion of Rheasilvia basin below 65 degrees S has a howarditic composition, with the higher concentration of diogenitic versus eucritic material in the region between 45 degrees and 225 degrees E-lon. However, there are several locations, such as craters Tarpeia and Severina and Parentatio Rupes, with lithologic characteristics different from the surroundings regions. Tarpeia crater has a eucritic patch in the west side of the crater, the bottom part of the wall and part of the floor. Severina, located in a region of Mg-rich pyroxene, has some diogenitic units on the walls of the crater. Also the Parentatio Rupes has an obvious diogenitic unit. These units extend for 10-20 km, and their location, especially in the case of the two craters, suggests they formed before the cratering events and also before the Rheasilvia impact event. The origin of these units is still unclear; however, their characteristics and locations suggests heterogeneity in the composition of the ancient Vestan crust in this particular location of the surface. Acknowledgements: The authors gratefully acknowledge the contribution of the Dawn Instruments and Operations Teams. This work is supported by NASA through the Dawn project and by an Italian Space Agency grant. The VIR spectrometer is funded by ASI. It was built by Selex-Galileo, Florence, Italy and is now managed by INAF - Istituto di Astrofisica e Planetologia Spaziali, Rome, Italy. JF - American Geophysical Union Fall Meeting AU - Ammannito, Eleonora AU - De Sanctis, Maria Cristina AU - Capaccioni, Fabrizio AU - Capria, Maria Teresa AU - Combe, Jean Philippe AU - Frigeri, Alessandro AU - Jaumann, Ralf AU - Longobardo, Andrea AU - Marchi, S AU - McCord, T B AU - McSween, H Y, Jr AU - Mittlefehldt, David W AU - Stephan, Katrin AU - Tosi, Federico AU - Raymond, Carol A AU - Russell, C T AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P43F EP - 06 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765878696?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Composition+of+Rheasilvia+basin+on+asteroid+Vesta&rft.au=Ammannito%2C+Eleonora%3BDe+Sanctis%2C+Maria+Cristina%3BCapaccioni%2C+Fabrizio%3BCapria%2C+Maria+Teresa%3BCombe%2C+Jean+Philippe%3BFrigeri%2C+Alessandro%3BJaumann%2C+Ralf%3BLongobardo%2C+Andrea%3BMarchi%2C+S%3BMcCord%2C+T+B%3BMcSween%2C+H+Y%2C+Jr%3BMittlefehldt%2C+David+W%3BStephan%2C+Katrin%3BTosi%2C+Federico%3BRaymond%2C+Carol+A%3BRussell%2C+C+T%3BAnonymous&rft.aulast=Ammannito&rft.aufirst=Eleonora&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-02-18 N1 - CODEN - #07548 ER - TY - JOUR T1 - In situ analysis of Mars soil and rocks sample with the SAM GCMS instrumentation onboard Curiosity; interpretation and comparison of measurements done during the first Martian year of Curiosity on Mars AN - 1765878615; 2016-013960 AB - The characterisation of the chemical and mineralogical composition of solid surface samples collected with the Curiosity rover is a primary objective of the SAM experiment. These data should provide essential clues on the past habitability of Gale crater. Amongst the SAM suite of instruments [1], SAM-GC (Gas Chromatograph) is devoted to identify and quantify volatiles evolved from the thermal (heating up to about 900 degrees C)/chemical (derivatization procedure) treatment of any soil sample collected by the Curiosity rover. With the aim to search for potential organic molecules outgassed from the samples, SAM-GC analytical channels composed of thermal-desorption injector, and a MXT-CLP or a MXT-Q chromatographic column was chosen to achieve all the measurements done up today, with the aim to separate of a wide range of volatile inorganic and organic molecules. Four solid samples have been analyzed with GCMS, one sand sample collected at the Rocknest site, two rock samples (John Klein and Cumberland respectively) collected at the Yellowknife Bay site using the Curiosity driller, and one rock sample collected at the Kimberly site. All the measurements were successful and they produced complex chromatograms with both detectors used for SAM GC, i.e. a thermal conductivity detector and the SAM quandrupole mass spectrometer. Their interpretation already revealed the presence of an oxychlorine phase present in the sample which is at the origin of chlorohydrocarbons clearly identified [2] but this represents only a fraction of the GCMS signal recorded [3,4]. This work presents a systematic comparison of the GCMS measurements done for the different samples collected, supported by reference data obtained in laboratory with different spare models of the gas chromatograph, with the aim to bring new elements of interpretation of the SAM measurements. References: [1] Mahaffy, P. et al. (2012) Space Sci Rev, 170, 401-478. [2] Glavin, D. et al. (2013), JGR. [3] Leshin L. et al. (2013), Science, [4] Ming D. et al. (2013), Science, 32, 64-67. Acknowledgements: SAM-GC team acknowledges support from the French Space Agency (CNES), French National Programme of Planetology (PNP), National French Council (CNRS), Pierre Simon Laplace Institute, Institut Universitaire de France (IUF) and ESEP Labex, and the great MSL team. JF - American Geophysical Union Fall Meeting AU - Szopa, Cyril AU - Coll, P J AU - Cabane, Michel AU - Buch, Arnaud AU - Coscia, David AU - Millan, Maeva AU - Francois, Pascaline AU - Belmahdi, Imene AU - Teinturier, Samuel AU - Navarro-Gonzalez, R AU - Glavin, Daniel P AU - Freissinet, Caroline AU - Steele, A AU - Eigenbrode, J L AU - Mahaffy, Paul R AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P43D EP - 4008 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765878615?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=In+situ+analysis+of+Mars+soil+and+rocks+sample+with+the+SAM+GCMS+instrumentation+onboard+Curiosity%3B+interpretation+and+comparison+of+measurements+done+during+the+first+Martian+year+of+Curiosity+on+Mars&rft.au=Szopa%2C+Cyril%3BColl%2C+P+J%3BCabane%2C+Michel%3BBuch%2C+Arnaud%3BCoscia%2C+David%3BMillan%2C+Maeva%3BFrancois%2C+Pascaline%3BBelmahdi%2C+Imene%3BTeinturier%2C+Samuel%3BNavarro-Gonzalez%2C+R%3BGlavin%2C+Daniel+P%3BFreissinet%2C+Caroline%3BSteele%2C+A%3BEigenbrode%2C+J+L%3BMahaffy%2C+Paul+R%3BAnonymous&rft.aulast=Szopa&rft.aufirst=Cyril&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - Number of references - 4 N1 - PubXState - DC N1 - Last updated - 2016-05-19 N1 - CODEN - #07548 ER - TY - JOUR T1 - First laboratory high-temperature emissivity measurements of Venus analog measurements in the near-infrared atmospheric windows AN - 1765878597; 2016-013842 AB - The permanent cloud cover of Venus prohibits observation of the surface with traditional imaging techniques over most of the visible spectral range. Venus' CO2 atmosphere is transparent exclusively in small spectral windows near 1 mu m. The Visible and Infrared Thermal Imaging Spectrometer (VIRTIS) team on the European Space Agency Venus-Express mission have recently used these windows successfully to map the southern hemisphere from orbit. VIRTIS is showing variations in surface brightness, which can be interpreted as variations in surface emissivity. Deriving surface composition from these variations is a challenging task. Comparison with laboratory analogue spectra are complicated by the fact that Venus has an average surface temperature of 730K. Mineral crystal structures and their resultant spectral signatures are notably affected by temperature, therefore any interpretations based on room temperature laboratory spectra database can be misleading. In order to support the interpretation of near-infrared data from Venus we have started an extensive measurement campaign at the Planetary Emissivity Laboratory (PEL, Institute of Planetary Research of the German Aerospace Center, Berlin). The PEL facility, which is unique in the world, allows emission measurements covering the 1 to 2 mu m wavelength range at sample temperatures of up to 770K. Conciliating the expected emissivity variation between felsic and mafic minerals with Venera and VEGA geochemical data we have started with a set of five analog samples. This set includes basalt, gneiss, granodiorite, anorthosite and hematite, thus covering the range of mineralogies. Preliminary results show significant spectral contrast, thus allowing different samples to be distinguished with only 5 spectral points and validating the use of thermal emissivity for investigating composition. This unique new dataset from PEL not only allows interpretation of the Venus Express VIRTIS data but also provide a baseline for considering new instrument designs for future Venus missions. JF - American Geophysical Union Fall Meeting AU - Helbert, J AU - Maturilli, A AU - Ferrari, S AU - Dyar, M D AU - Smrekar, S E AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P21B EP - 3911 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765878597?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=First+laboratory+high-temperature+emissivity+measurements+of+Venus+analog+measurements+in+the+near-infrared+atmospheric+windows&rft.au=Helbert%2C+J%3BMaturilli%2C+A%3BFerrari%2C+S%3BDyar%2C+M+D%3BSmrekar%2C+S+E%3BAnonymous&rft.aulast=Helbert&rft.aufirst=J&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-02-18 N1 - CODEN - #07548 ER - TY - JOUR T1 - The anomalous drift of comet ISON (C/2012 S1) due to sublimating volatiles near perihelion AN - 1765878543; 2016-013957 AB - Prior to perihelion passage on 28 November 2013, the observed right ascension (RA) and declination (Dec) coordinates of comet C/2012 S1 (ISON) significantly lagged the predicted JPL (# 53) ephemeris. We show that this "braking effect" is due to a dynamic pressure exerted by sublimating gases on the sunward side of the nucleus [1]. Comet ISON was observed November 23 through November 28 using the SCUBA-2 sub-millimeter camera on the James Clerk Maxwell Telescope (JCMT). Imaging is achieved simultaneously at wavelengths of 850 mu m and 450 mu m, with RA and Dec determined from the central peak in the coma brightness [2]. When comet ISON was first detected at 850 mu m, the 1-mm-sized dust particles were tightly bound to the comet nucleus until at least November 23. Three days later, the dust was less tightly bound, elongated and diffuse, spread out over as much as 120 arc seconds (80,000 km) in the anti-solar direction, suggesting a fragmentation event. We compute the average braking velocity of the nucleus of comet ISON by first measuring the distance between the central RA position and the predicted JPL ephemeris. We then calculate the change in this distance between subsequent observations, and divide this value by the elapsed time between the two observations to yield an average drift velocity of the nucleus over this time interval. We assume that comet ISON, like a number of Jupiter Family Comets visited by spacecraft [3], has low thermal inertia. Thus, the sublimating gases are emitted predominantly on the sunward side of the nucleus. Additionally, we assume that water ice dominates the sublimating gases [4]. We then calculate the pressure on the surface of the nucleus due to the emitted gases using the procedure described in [1]. We match the average drift velocity of the nucleus due to this sublimation pressure with the observed average drift velocity from the JCMT observations, which is sensitive to the size of the body, allowing us to estimate the size of the nucleus (or its fragments) shortly before perihelion. References: [1] Steckloff et al. (2014) Submitted Nature [2] Keane et al. (2014) Submitted Ap. J. [3] Groussin et al. (2013) Icarus 222, 580-594 [4] Combi et al. (2014) Ap. J. 788:L7 (5pp). JF - American Geophysical Union Fall Meeting AU - Steckloff, J K AU - Keane, J V AU - Milam, Stefanie AU - Coulson, I AU - Knight, M M AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P43C EP - 4005 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765878543?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=The+anomalous+drift+of+comet+ISON+%28C%2F2012+S1%29+due+to+sublimating+volatiles+near+perihelion&rft.au=Steckloff%2C+J+K%3BKeane%2C+J+V%3BMilam%2C+Stefanie%3BCoulson%2C+I%3BKnight%2C+M+M%3BAnonymous&rft.aulast=Steckloff&rft.aufirst=J&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - Number of references - 4 N1 - PubXState - DC N1 - Last updated - 2016-02-18 N1 - CODEN - #07548 ER - TY - JOUR T1 - Manganese in Endeavour crater rim materials, Mars, and implications for habitability AN - 1765878520; 2016-013903 AB - The Opportunity Mars rover wheels overturned two adjacent rocks and exposed underlying fracture-filling deposits while exploring the Murray Ridge rim segment of the Noachian-aged Endeavour Crater. These two small rocks, Pinnacle Island ( nearly equal 4 cm across) and Stuart Island (ranging from nearly equal 3 to 8 cm wide and nearly equal 10 cm long), were subsequently examined in detail to determine the textures, spectral reflectances (0.4 to 1.0 mu m), and compositions of the fracture-filling materials. Relatively bright materials with a composition enriched in Mg, Fe, and S, and spectral features indicative of hydrated sulfates, are overlain with a dark, purple mineral phase or phases with a composition enriched in Mn, Ni, P, and Ca, all relative to underlying bedrock. Reflectance spectra for the dark, purple material are consistent with the presence of one or more Mn-oxide phases. Results indicate two aqueous events, one to deposit the Fe and Mg-rich sulfates, and one to deposit the Mn-rich mineral(s), perhaps with scavenging of Ni from the fluid. Ca and P-rich phases (e.g., Ca-phosphates) co-precipitated with Mn-bearing mineral(s) or were incorporated into one or more of them. Mixing of reducing ground waters with an oxidizing atmosphere or other waters likely produced both the S and Mn-enriched deposits. Oxidation of Mn, in particular, requires a very high potential oxidant relative to what is required for S or Fe oxidation. This suggests oxidation by O (sub 2) or species derived from O (sub 2) . Mn-oxide phases would have provided highly favorable substrates for microbial respiration, making this period of aqueous flow through the fractures a potentially habitable environment. These results add to the evolving story of aqueous alteration of Endeavour's rim rocks, including evidence for nontronite, montmorillonite, Ca-sulfate-rich veins, and hematitic concretions. JF - American Geophysical Union Fall Meeting AU - Arvidson, R E AU - Catalano, J G AU - Clark, Ben C AU - Fischer, W W AU - Grotzinger, J P AU - Gellert, R AU - Guinness, E A AU - Herkenhoff, Kenneth E AU - Johnson, Jeffrey R AU - McLennan, Scott M AU - Ming, Douglas W AU - Morris, Richard V AU - Squyres, S W AU - Yen, Albert S AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P34A EP - 08 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765878520?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Manganese+in+Endeavour+crater+rim+materials%2C+Mars%2C+and+implications+for+habitability&rft.au=Arvidson%2C+R+E%3BCatalano%2C+J+G%3BClark%2C+Ben+C%3BFischer%2C+W+W%3BGrotzinger%2C+J+P%3BGellert%2C+R%3BGuinness%2C+E+A%3BHerkenhoff%2C+Kenneth+E%3BJohnson%2C+Jeffrey+R%3BMcLennan%2C+Scott+M%3BMing%2C+Douglas+W%3BMorris%2C+Richard+V%3BSquyres%2C+S+W%3BYen%2C+Albert+S%3BAnonymous&rft.aulast=Arvidson&rft.aufirst=R&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-02-18 N1 - CODEN - #07548 ER - TY - JOUR T1 - Volcanic ash and SO2 monitoring using Suomi NPP direct broadcast OMPS data AN - 1765878368; 2016-011876 AB - NASA's Suomi NPP Ozone Science Team, in conjunction with Goddard Space Flight Center's (GSFC's) Direct Readout Laboratory, developed the capability of processing, in real-time, direct readout (DR) data from the Ozone Mapping and Profiler Suite (OMPS) to perform SO2 and Aerosol Index (AI) retrievals. The ability to retrieve this information from real-time processing of DR data was originally developed for the Ozone Monitoring Instrument (OMI) onboard the Aura spacecraft and is used by Volcano Observatories and Volcanic Ash Advisory Centers (VAACs) charged with mapping ash clouds from volcanic eruptions and providing predictions/forecasts about where the ash will go. The resulting real-time SO2 and AI products help to mitigate the effects of eruptions such as the ones from Eyjafjallajokull in Iceland and Puyehue-Cordon Caulle in Chile, which cause massive disruptions to airline flight routes for weeks as airlines struggle to avoid ash clouds that could cause engine failure, deeply pitted windshields impossible to see through, and other catastrophic events. We will discuss the implementation of real-time processing of OMPS DR data by both the Geographic Information Network of Alaska (GINA) and the Finnish Meteorological Institute (FMI), which provide real-time coverage over some of the most congested airspace and over many of the most active volcanoes in the world, and show examples of OMPS DR processing results from recent volcanic eruptions. JF - American Geophysical Union Fall Meeting AU - Seftor, C J AU - Krotkov, N A AU - McPeters, R D AU - Li, J Y AU - Brentzel, K W AU - Habib, S AU - Hassinen, S AU - Heinrichs, T A AU - Schneider, D J AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract IN11D EP - 05 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765878368?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Volcanic+ash+and+SO2+monitoring+using+Suomi+NPP+direct+broadcast+OMPS+data&rft.au=Seftor%2C+C+J%3BKrotkov%2C+N+A%3BMcPeters%2C+R+D%3BLi%2C+J+Y%3BBrentzel%2C+K+W%3BHabib%2C+S%3BHassinen%2C+S%3BHeinrichs%2C+T+A%3BSchneider%2C+D+J%3BAnonymous&rft.aulast=Seftor&rft.aufirst=C&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-02-18 N1 - CODEN - #07548 ER - TY - JOUR T1 - NASA's astromaterials curation digital repository; enabling research through increased access to sample data, metadata and imagery AN - 1765878281; 2016-011886 AB - The Astromaterials Acquisition & Curation Office at NASA's Johnson Space Center (JSC) is the designated facility for curating all of NASA's extraterrestrial samples. Today, the suite of collections includes the lunar samples from the Apollo missions, cosmic dust particles falling into the Earth's atmosphere, meteorites collected in Antarctica, comet and interstellar dust particles from the Stardust mission, asteroid particles from Japan's Hayabusa mission, solar wind atoms collected during the Genesis mission, and space-exposed hardware from several missions. To support planetary science research on these samples, JSC's Astromaterials Curation Office hosts NASA's Astromaterials Curation digital repository and data access portal [http://curator.jsc.nasa.gov/], providing descriptions of the missions and collections, and critical information about each individual sample. Our office is designing and implementing several informatics initiatives to better serve the planetary research community. First, we are re-hosting the basic database framework by consolidating legacy databases for individual collections and providing a uniform access point for information (descriptions, imagery, classification) on all of our samples. Second, we continue to upgrade and host digital compendia that summarize and highlight published findings on the samples (e.g., lunar samples, meteorites from Mars). We host high resolution imagery of samples as it becomes available, including newly scanned images of historical prints from the Apollo missions. Finally we are creating plans to collect and provide new data, including 3D imagery, point cloud data, micro CT data, and external links to other data sets on selected samples. Together, these individual efforts will provide unprecedented digital access to NASA's Astromaterials, enabling preservation of the samples through more specific and targeted requests, and supporting new planetary science research and collaborations on the samples. JF - American Geophysical Union Fall Meeting AU - Evans, C A AU - Todd, N S AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract IN23A EP - 3725 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 15:Miscellaneous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765878281?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=NASA%27s+astromaterials+curation+digital+repository%3B+enabling+research+through+increased+access+to+sample+data%2C+metadata+and+imagery&rft.au=Dinnat%2C+Emmanuel%3BBoutin%2C+Jacqueline%3BLe+Vine%2C+David%3BYin%2C+Xiaobin&rft.aulast=Dinnat&rft.aufirst=Emmanuel&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-02-18 N1 - CODEN - #07548 ER - TY - JOUR T1 - Smarter instruments, smarter archives; machine learning for tactical science AN - 1765878267; 2016-011959 AB - There has been a growing interest by Earth and Planetary Sciences in machine learning, visualization and cyberinfrastructure to interpret ever-increasing volumes of instrument data. Such tools are commonly used to analyze archival datasets, but they can also play a valuable real-time role during missions. Here we discuss ways that machine learning can benefit tactical science decisions during Earth and Planetary Exploration. Machine learning's potential begins at the instrument itself. Smart instruments endowed with pattern recognition can immediately recognize science features of interest. This allows robotic explorers to optimize their limited communications bandwidth, triaging science products and prioritizing the most relevant data. Smart instruments can also target their data collection on the fly, using principles of experimental design to reduce redundancy and generally improve sampling efficiency for time-limited operations. Moreover, smart instruments can respond immediately to transient or unexpected phenomena. Examples include detections of cometary plumes, terrestrial floods, or volcanism. We show recent examples of smart instruments from 2014 tests including: aircraft and spacecraft remote sensing instruments that recognize cloud contamination, field tests of a "smart camera" for robotic surface geology, and adaptive data collection by X-Ray fluorescence spectrometers. Machine learning can also assist human operators when tactical decision making is required. Terrestrial scenarios include airborne remote sensing, where the decision to re-fly a transect must be made immediately. Planetary scenarios include deep space encounters or planetary surface exploration, where the number of command cycles is limited and operators make rapid daily decisions about where next to collect measurements. Visualization and modeling can reveal trends, clusters, and outliers in new data. This can help operators recognize instrument artifacts or spot anomalies in real time. We show recent examples from science data pipelines deployed onboard aircraft as well as tactical visualizations for non-image instrument data. JF - American Geophysical Union Fall Meeting AU - Thompson, D R AU - Kiran, R AU - Allwood, A AU - Altinok, A AU - Estlin, T AU - Flannery, D AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract IN51B EP - 3775 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 15:Miscellaneous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765878267?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Smarter+instruments%2C+smarter+archives%3B+machine+learning+for+tactical+science&rft.au=Thompson%2C+D+R%3BKiran%2C+R%3BAllwood%2C+A%3BAltinok%2C+A%3BEstlin%2C+T%3BFlannery%2C+D%3BAnonymous&rft.aulast=Thompson&rft.aufirst=D&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-02-18 N1 - CODEN - #07548 ER - TY - JOUR T1 - Earth system data records of mass transport from time-variable gravity data AN - 1765877779; 2016-011919 AB - Satellite measurements of time variable gravity have revolutionized the study of Earth, by measuring the ice losses of Greenland, Antarctica and land glaciers, changes in groundwater including unsustainable losses due to extraction of groundwater, the mass and currents of the oceans and their redistribution during El Nino events, among other findings. Satellite measurements of gravity have been made primarily by four techniques: satellite tracking from land stations using either lasers or Doppler radio systems, satellite positioning by GNSS/GPS, satellite to satellite tracking over distances of a few hundred km using microwaves, and through a gravity gradiometer (radar altimeters also measure the gravity field, but over the oceans only). We discuss the challenges in the measurement of gravity by different instruments, especially time-variable gravity. A special concern is how to bridge a possible gap in time between the end of life of the current GRACE satellite pair, launched in 2002, and a future GRACE Follow-On pair to be launched in 2017. One challenge in combining data from different measurement systems consists of their different spatial and temporal resolutions and the different ways in which they alias short time scale signals. Typically satellite measurements of gravity are expressed in spherical harmonic coefficients (although expansions in terms of "mascons", the masses of small spherical caps, has certain advantages). Taking advantage of correlations among spherical harmonic coefficients described by empirical orthogonal functions and derived from GRACE data it is possible to localize the otherwise coarse spatial resolution of the laser and Doppler derived gravity models. This presentation discusses the issues facing a climate data record of time variable mass flux using these different data sources, including its validation. JF - American Geophysical Union Fall Meeting AU - Zlotnicki, V AU - Talpe, M AU - Nerem, R S AU - Landerer, F W AU - Watkins, M M AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract IN34A EP - 01 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 15:Miscellaneous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765877779?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Earth+system+data+records+of+mass+transport+from+time-variable+gravity+data&rft.au=Zlotnicki%2C+V%3BTalpe%2C+M%3BNerem%2C+R+S%3BLanderer%2C+F+W%3BWatkins%2C+M+M%3BAnonymous&rft.aulast=Zlotnicki&rft.aufirst=V&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-02-18 N1 - CODEN - #07548 ER - TY - JOUR T1 - PANDORA; exploring the early solar system, by way of the moons of Mars AN - 1765877315; 2016-012100 AB - After 40 years of spacecraft exploration of the Martian system, the origin of Phobos and Deimos remains a vexing mystery. Are they captured asteroids, detritus from Mars' formation, or reaccreted impact ejecta from Mars? Using only orbital measurements, the Phobos ANd Deimos ORigin Assessment (PANDORA) Mission being proposed to the 2014 NASA Discovery AO, plans to measure the elemental make-up of both moons and create high-resolution global maps of composition and surface morphology and structure. In particular, PANDORA would investigate the characteristics and distribution of the "red" and "blue" units prominent on Phobos, with the goal of identifying which units represent original material or which may be exogenic contamination. PANDORA will compare the composition of Phobos and Deimos to determine if they have a common origin. After identifying appropriate material representative of their bulk composition, careful analysis of the mineralogical and elemental composition of this material would allow us to discriminate between the formation hypotheses for each Moon. Determining the provenance of these Moons of Mars will shed light on fundamental Solar System processes. JF - American Geophysical Union Fall Meeting AU - Diniega, Serina AU - Raymond, C A AU - Prettyman, T H AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P13D EP - 3838 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765877315?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=PANDORA%3B+exploring+the+early+solar+system%2C+by+way+of+the+moons+of+Mars&rft.au=Diniega%2C+Serina%3BRaymond%2C+C+A%3BPrettyman%2C+T+H%3BAnonymous&rft.aulast=Diniega&rft.aufirst=Serina&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-02-18 N1 - CODEN - #07548 ER - TY - JOUR T1 - Activation of fault structures South of the La Habra earthquake rupture as evidenced by UAVSAR imaging AN - 1765877242; 2016-012204 AB - The 28 March, 2014 M 5.2 La Habra earthquake occurred on a northeast striking, northwest dipping left-lateral oblique thrust fault at the northeastern margin of the LA Basin, where regional right-lateral shear is accommodated by major northwest trending faults of the Peninsular Ranges, and north-south shortening is accommodated by north-dipping thrust faults and east-west trending folds of the Transverse Ranges. The La Habra mainshock location and focal mechanism is northwest of but sub-parallel to the Puente Hills thrust fault. Relocated seismicity highlights a northeast-trending rupture plane consistent with the magnitude and focal mechanism of the event. NASA's UAVSAR L-Band radar instrument was flown for north and south looking lines before the earthquake on 22 January 2014. The north looking line was reflown three days after the earthquake on 31 March, 2014, and the south looking line was reflown a week later on 4 April 2014. The UAVSAR Repeat Pass Interferogram (RPI) products show deformation consistent with the location of the mainshock beneath the town of La Habra. The results also show considerable aseismic northward horizontal deformation with minor uplift in the West Coyote Hills, south of the relocated seismicity. Inversion of the combined interferograms is consistent with south dipping low-angle (7 degrees ) shallow slip that corresponds to bedding plane attitudes and a mapped unconformity. The entire West Coyote Hills show 37 mm of modeled northward slip with an additional 34 mm of modeled slip concentrated near the Coyote Hills Park northeast of the intersection of Rosecrans Avenue and North Gilbert Street. A narrow band of shortening was also observed with UAVSAR, and confirmed with on-the-ground field observations, at the Trojan Way Kink Band, nearly one fault dimension southwest of the main rupture. JF - American Geophysical Union Fall Meeting AU - Donnellan, Andrea AU - Parker, Jay W AU - Grant Ludwig, L AU - Hauksson, E AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract S21B EP - 4435 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 19:Seismology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765877242?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Activation+of+fault+structures+South+of+the+La+Habra+earthquake+rupture+as+evidenced+by+UAVSAR+imaging&rft.au=Donnellan%2C+Andrea%3BParker%2C+Jay+W%3BGrant+Ludwig%2C+L%3BHauksson%2C+E%3BAnonymous&rft.aulast=Donnellan&rft.aufirst=Andrea&rft.date=2014-12-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-02-18 N1 - CODEN - #07548 ER - TY - JOUR T1 - King's Bowl pit crater, lava field and eruptive fissure, Idaho; a multipurpose volcanic planetary analog AN - 1765877194; 2016-012094 AB - King's Bowl (KB) and its associated eruptive fissure and lava field on the eastern Snake River plain, is being investigated by the NASA SSERVI FINESSE (Field Investigations to Enable Solar System Science and Exploration) team as a planetary analog to similar pits on the Moon, Mars and Vesta. The 2,220 + or - 100 BP basaltic eruption in Craters of the Moon National Monument and Preserve represents early stages of low shield growth, which was aborted when magma supply was cut off. Compared to mature shields, KB is miniscule, with approximately 0.02 km3 of lava over approximately 3 km2, yet the approximately 6 km long series of fissures, cracks and pits are well-preserved for analog studies of volcanic processes. The termination of eruption was likely related to proximity of the 2,270 + or - 50 BP eruption of the much larger Wapi lava field ( approximately 5.5 km3 over 325 km2 area) on the same rift. Our investigation extends early work by R. Greeley and colleagues, focusing on imagery, compositional variations, ejecta distribution, dGPS profiles and LiDAR scans of features related to: (1) fissure eruptions; spatter ramparts, cones, feeder dikes, extension cracks; (2) lava lake formation; surface morphology, squeeze-ups, slab pahoehoe lava mounds, lava drain-back, flow lobe overlaps; and (3) phreatic steam blasts; explosion pits, ejecta blankets of ash and blocks. Preliminary results indicate multiple fissure eruptions and growth of a basin-filled lava lake up to approximately 10 m thick with outflow sheet lava flows. Remnant mounds of original lake crust reveal an early high lava lake level, which subsided as much as 5 m as the molten interior drained back into the fissure system. Rapid loss of magma supply led to the collapse of fissure walls allowing groundwater influx that triggered multiple steam blasts along at least 500 m. Early blasts occurred while lake magma pressure was still high enough to produce squeeze-ups when penetrated by ejecta blocks. The King's Bowl pit crater exemplifies processes of a small, but highly energetic eruption that ejected blocks up to 2 m strewn over 200 m onto the lava lake surface. JF - American Geophysical Union Fall Meeting AU - Hughes, S S AU - Garry, B AU - Kobs-Nawotniak, S E AU - Sears, D W G AU - Borg, C AU - Elphic, R C AU - Haberle, C W AU - Kobayashi, L AU - Lim, D S S AU - Sears, H AU - Skok, J R AU - Heldmann, J L AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P13D EP - 3831 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 23:Geomorphology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765877194?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=King%27s+Bowl+pit+crater%2C+lava+field+and+eruptive+fissure%2C+Idaho%3B+a+multipurpose+volcanic+planetary+analog&rft.au=Hughes%2C+S+S%3BGarry%2C+B%3BKobs-Nawotniak%2C+S+E%3BSears%2C+D+W+G%3BBorg%2C+C%3BElphic%2C+R+C%3BHaberle%2C+C+W%3BKobayashi%2C+L%3BLim%2C+D+S+S%3BSears%2C+H%3BSkok%2C+J+R%3BHeldmann%2C+J+L%3BAnonymous&rft.aulast=Hughes&rft.aufirst=S&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-02-18 N1 - CODEN - #07548 ER - TY - JOUR T1 - Connecting returned Apollo soils and remote sensing; application to the Diviner Lunar Radiometer AN - 1765877145; 2016-012101 AB - The Diviner Lunar Radiometer, onboard NASA's Lunar Reconnaissance Orbiter, has produced the first global, high resolution, thermal infrared observations of an airless body. The Moon, which is the most accessible member of this most abundant class of solar system objects, is also the only body for which we have extraterrestrial samples with known spatial context. Here we present the results of a comprehensive study to reproduce an accurate simulated lunar environment, evaluate the most appropriate sample and measurement conditions, collect thermal infrared spectra of a representative suite of Apollo soils, and correlate them with Diviner observations of the lunar surface. It has been established that thermal infrared spectra measured in a simulated lunar environment (SLE) are significantly altered from spectra measured under terrestrial conditions. The data presented here were collected at the University of Oxford Simulated Lunar Environment Chamber (SLEC). In SLEC, the lunar environment is simulated by: (1) pumping the chamber to vacuum pressures (<10-4 mbar) sufficient to simulate lunar heat transport processes within the sample, (2) cooling the chamber with liquid nitrogen to simulate radiation to the cold space environment, and (3) heating the samples with heaters and lamp to set-up thermal gradients similar to those experienced in the upper hundreds of microns of the lunar surface. A comprehensive suite of experiments were conducted using different sample preparation and heating conditions on Apollo soils 15071 (maria) and 67701 (highland) and compared the results to Diviner noontime data to select the optimal experimental conditions. Additional thermal infrared measurements in optimized SLE were made of 10084 (A11-LM), 12001 (A12-LM), 14259 (A14-LM), 15071 (A15-S1), 15601 (A15-S9a), 61141 (A16-S1), 66031 (A16-S6), 67701 (A16-S11), and 70181 (A17-LM). The Diviner dataset includes all six Apollo sites at approximately 200 m spatial resolution. We find that analyses of Diviner observations of individual sampling stations and SLE measurements of returned Apollo soils show good agreement, while comparisons to thermal infrared reflectance under terrestrial conditions do not agree well, which underscores the need for SLE measurements and validates the Diviner compositional dataset. JF - American Geophysical Union Fall Meeting AU - Greenhagen, B T AU - Donaldson Hanna, K L AU - Thomas, I AU - Bowles, N E AU - Allen, C AU - Pieters, C M AU - Paige, D A AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P13D EP - 3841 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765877145?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Connecting+returned+Apollo+soils+and+remote+sensing%3B+application+to+the+Diviner+Lunar+Radiometer&rft.au=Greenhagen%2C+B+T%3BDonaldson+Hanna%2C+K+L%3BThomas%2C+I%3BBowles%2C+N+E%3BAllen%2C+C%3BPieters%2C+C+M%3BPaige%2C+D+A%3BAnonymous&rft.aulast=Greenhagen&rft.aufirst=B&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-02-18 N1 - CODEN - #07548 ER - TY - JOUR T1 - Tropospheric delay ray tracing applied in VLBI analysis AN - 1765874883; 2016-015612 AB - Tropospheric delay modeling error continues to be one of the largest sources of error in VLBI (very long baseline interferometry) analysis. For standard operational solutions, we use the VMF1 elevation-dependent mapping functions derived from European Centre for Medium-Range Weather Forecasts data. These mapping functions assume that tropospheric delay at a site is azimuthally symmetric. As this assumption is not true, we have instead determined the ray trace delay along the signal path through the troposphere for each VLBI quasar observation. We determined the troposphere refractivity fields from the pressure, temperature, specific humidity, and geopotential height fields of the NASA Goddard Space Flight Center Goddard Earth Observing System version 5 numerical weather model. When applied in VLBI analysis, baseline length repeatabilities were improved compared with using the VMF1 mapping function model for 72% of the baselines and site vertical repeatabilities were better for 11 of 13 sites during the 2 week CONT11 observing period in September 2011. When applied to a larger data set (2011-2013), we see a similar improvement in baseline length and also in site position repeatabilities for about two thirds of the stations in each of the site topocentric components. Abstract Copyright (2014), American Geophysical Union. All Rights Reserved. JF - Journal of Geophysical Research: Solid Earth AU - Eriksson, David AU - MacMillan, D S AU - Gipson, John M Y1 - 2014/12// PY - 2014 DA - December 2014 SP - 9156 EP - 9170 PB - Wiley-Blackwell for American Geophysical Union, Washington, DC VL - 119 IS - 12 SN - 2169-9313, 2169-9313 KW - humidity KW - numerical models KW - prediction KW - atmospheric pressure KW - mathematical models KW - troposphere KW - very long baseline interferometry KW - meteorology KW - interferometry KW - temperature KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765874883?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research%3A+Solid+Earth&rft.atitle=Tropospheric+delay+ray+tracing+applied+in+VLBI+analysis&rft.au=McPeters%2C+Richard%3BFrith%2C+Stacey%3BLabow%2C+Gordon%3BSeftor%2C+Colin&rft.aulast=McPeters&rft.aufirst=Richard&rft.date=2014-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=47th+American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://agupubs.onlinelibrary.wiley.com/agu/jgr/journal/10.1002/(ISSN)2169-9356/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 36 N1 - PubXState - DC N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2016-02-18 N1 - SubjectsTermNotLitGenreText - atmospheric pressure; humidity; interferometry; mathematical models; meteorology; numerical models; prediction; temperature; troposphere; very long baseline interferometry DO - http://dx.doi.org/10.1002/2014JB011552 ER - TY - JOUR T1 - Collaboratively conceived, designed and implemented; matching visualization tools with geoscience data collections and geoscience data collections with visualization tools via the ToolMatch service. AN - 1765873981; 2016-011918 AB - Two problems common to many geoscience domains are the difficulties in finding tools to work with a given dataset collection, and conversely, the difficulties in finding data for a known tool. A collaborative team from the Earth Science Information Partnership (ESIP) has gotten together to design and create a web service, called ToolMatch, to address these problems. The team began their efforts by defining an initial, relatively simple conceptual model that addressed the two uses cases briefly described above. The conceptual model is expressed as an ontology using OWL (Web Ontology Language) and DCterms (Dublin Core Terms), and utilizing standard ontologies such as DOAP (Description of a Project), FOAF (Friend of a Friend), SKOS (Simple Knowledge Organization System) and DCAT (Data Catalog Vocabulary). The ToolMatch service will be taking advantage of various Semantic Web and Web standards, such as OpenSearch, RESTful web services, SWRL (Semantic Web Rule Language) and SPARQL (Simple Protocol and RDF Query Language). The first version of the ToolMatch service was deployed in early fall 2014. While more complete testing is required, a number of communities besides ESIP member organizations have expressed interest in collaborating to create, test and use the service and incorporate it into their own web pages, tools and/or services including the USGS Data Catalog service, DataONE, the Deep Carbon Observatory, Virtual Solar Terrestrial Observatory (VSTO), and the U.S. Global Change Research Program. In this session, presenters will discuss the inception and development of the ToolMatch service, the collaborative process used to design, refine, and test the service, and future plans for the service. JF - American Geophysical Union Fall Meeting AU - Hoebelheinrich, N J AU - Lynnes, C AU - West, P AU - Ferritto, M AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract IN33C EP - 3784 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 15:Miscellaneous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765873981?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Collaboratively+conceived%2C+designed+and+implemented%3B+matching+visualization+tools+with+geoscience+data+collections+and+geoscience+data+collections+with+visualization+tools+via+the+ToolMatch+service.&rft.au=Hoebelheinrich%2C+N+J%3BLynnes%2C+C%3BWest%2C+P%3BFerritto%2C+M%3BAnonymous&rft.aulast=Hoebelheinrich&rft.aufirst=N&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-02-18 N1 - CODEN - #07548 ER - TY - JOUR T1 - Metal-silicate partitioning of uranium at high pressures and temperatures AN - 1765873862; 2016-011983 AB - Uranium, along with the other long-lived radioactive elements Th and K, are important heat sources in the Earth, contributing as much as 50% of the total heat flux at the surface. However, it is unknown whether these elements are also an important heat source in the core. Previous metal-silicate partitioning experiments of U have noted an increase in partition coefficient (D(U)) with decreasing oxygen fugacity and increasing S content. Regardless, they conclude that the partition coefficients are too low, even under the most extreme conditions, for U to be an important heat source in the Earth's core. However, all of those experiments were conducted at relatively low pressures (<29 GPa) and moderate temperatures (<2700 K). We present metal-silicate partitioning experiments conducted in the diamond anvil cell at conditions more relevant to a basal magma ocean, 40-55 GPa in pressure and 3700-4900 K in temperature. Under relatively reducing conditions (Delta IW=-1.5 to -2.5, with 15-30 wt% Si in the metal) and with no sulfur present, we measure partition coefficients for U in the range of 0.01-0.1, significantly higher than has been previously reported. From these results, we are unable to rule out the possibility that U is a significant heat source in the core. JF - American Geophysical Union Fall Meeting AU - Chidester, B AU - Righter, Kevin AU - Rahman, Zia AU - Campbell, A J AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract MR41A EP - 4374 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 17B:Geophysics of minerals and rocks UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765873862?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Metal-silicate+partitioning+of+uranium+at+high+pressures+and+temperatures&rft.au=Chidester%2C+B%3BRighter%2C+Kevin%3BRahman%2C+Zia%3BCampbell%2C+A+J%3BAnonymous&rft.aulast=Chidester&rft.aufirst=B&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-02-18 N1 - CODEN - #07548 ER - TY - JOUR T1 - A user interface for identifying volcanic layers in CALIPSO and CATS lidar observations AN - 1765873780; 2016-011951 AB - The CALIPSO satellite provides profile measurements of aerosols and clouds over the globe and has operated near-continuously since its launch in 2006. The CALIPSO lidar (known as CALIOP) is adept at identifying isolated aerosol layers and provides information on their composition that is available for quasi-real time forecasting applications (routine browse images are available at www-calipso.larc.nasa.gov). This information can be used effectively to identify volcanic (and dust) plumes and forecast of aerosol dispersion when coupled with a trajectory model. On several occasions such as during the eruptions of Eyjafjallajokull in 2010 and Kelud in 2014, the CALIPSO data aided forecasters from aviation Volcanic Ash Advisory Centers with information on the location and height of volcanic plumes that helped with their hazard assessments. This paper presents a prototype GUI that aids data users with identifying volcanic layers from CALIPSO browse imagery. A notable aspect of the tool is the ability to select individual features as a collection of individual profile observations and save them into a database or initiate a forward/backward trajectory model using coordinates obtained from the composite object. Examples will be presented that demonstrate the applicability of the GUI using the HySplit and NASA trajectory models. This tool will also be able to support lidar measurements expected from the new Cloud-Aerosol Transport System (CATS) lidar that will be deployed on the International Space Station in the near future. JF - American Geophysical Union Fall Meeting AU - Trepte, C R AU - Vernier, J P AU - Fairlie, T D AU - Murray, J J AU - McGill, M J AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract IN43C EP - 3699 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765873780?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=A+user+interface+for+identifying+volcanic+layers+in+CALIPSO+and+CATS+lidar+observations&rft.au=Trepte%2C+C+R%3BVernier%2C+J+P%3BFairlie%2C+T+D%3BMurray%2C+J+J%3BMcGill%2C+M+J%3BAnonymous&rft.aulast=Trepte&rft.aufirst=C&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-02-18 N1 - CODEN - #07548 ER - TY - JOUR T1 - Measures Earth System Data Records (ESDR) of ice motion in Antarctica; status, impact and future products AN - 1765873730; 2016-011920 AB - Spaceborne Synthetic Aperture Radar (SAR) data is an extremely useful tool for providing relevant information about the ice sheet ECV: ice vector velocity, grounding line position, and ice front location. Here, we provide an overview of the SAR Earth System Data Records (ESDR) for Antarctica part of MEaSUREs that includes: the first complete map of surface ice vector velocity in Antarctica, a map of grounding line positions around Antarctica, ice velocity time series for selected regions: Ross and Ronne-Filchner Ice Shelves and associated drainage basins, the Amundsen Sea Embayment of West Antarctica which is the largest contributor to sea level rise from Antarctica and the focus of rapid ice sheet retreat, and Larsen-B and -C ice shelves which is the second largest contribution to sea level rise from Antarctica. Other products include a database of ice shelf boundaries and drainage basins based on ice motion mapping and digital elevation models generated independently. Data continuity is a crucial aspect of this work and a fundamental challenge for the continuation of these products due to the lack of a dedicated interferometric mission on the cryosphere until the SAR mission under consideration between NASA and ISRO is approved. Four SAR missions ceased operations since IPY. CSA's RADARSAT-2 has provided important bridging data between these missions in Greenland and Antarctica. In 2014, ESA launched Sentinel-1a and JAXA launched ALOS-2 PALSAR, for which we will have limited data access. The Polar Space Task Group (PSTG) created by WMO has established a mandate to support cryospheric products from scientific research using international SARs which continues to play an active role in securing key data acquisitions over ice sheets. We will provide an overview of current efforts. This work was conducted at UC Irvine, Department of Earth System Science under a contract with NASA's MEaSUREs program. JF - American Geophysical Union Fall Meeting AU - Scheuchl, B AU - Rignot, E J AU - Mouginot, J AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract IN34A EP - 03 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765873730?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Measures+Earth+System+Data+Records+%28ESDR%29+of+ice+motion+in+Antarctica%3B+status%2C+impact+and+future+products&rft.au=Scheuchl%2C+B%3BRignot%2C+E+J%3BMouginot%2C+J%3BAnonymous&rft.aulast=Scheuchl&rft.aufirst=B&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-02-18 N1 - CODEN - #07548 ER - TY - JOUR T1 - InSAR assessment of ground deformations in shoreline urban areas associated to hydraulic head variations AN - 1765873709; 2016-011747 AB - Monitoring ground deformations in highly dense populated shoreline and lowlands areas such as Montreal is crucial for the sustainable development of urban infrastructures. Montreal already undergoes house foundations damages with a density of 8 repairs per square kilometer, especially over clay deposits such as in the Plateau neighborhood with a density of 89 repairs/km2. Using Radarsat-2 C-Band SAR interferometry, we observe a 3-5 mm ground LOS displacement variation temporally out-phased by three months relative to the 2 meter subartesian aquifer hydraulic head and river level variations, over a 60 km2 zone located in the central part of the Montreal Island in eastern Canada, from 2008 to 2010. Using ascending and descending SAR acquisition mode we extract the vertical component of the LOS velocities and observe secular displacements relative to a unconfined aquifer. These displacements are 2 mm/year subsidence on the minor topographic high, associated with evapotranspiration. We also observe ground water recharge and approximately 1 mm/year uplift downhill related to ground water discharge from deep regional aquifer enhanced with a faults system and shallow local aquifer arising from transmissivity. Displacements observed during this two year study are small but they are significant if integrated over the average lifetime of a house. We conclude that hydraulic head is related to the observed ground deformation in most of the areas of Montreal. Moreover, wetter climate conditions forecast for this area will definitely increase the aquifer dynamics; thus, more ground deformations are foreseen and have to be considered in future infrastructure design standards. JF - American Geophysical Union Fall Meeting AU - Normand, Jonathan AU - Heggy, Essam AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract H51B EP - 0596 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765873709?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=InSAR+assessment+of+ground+deformations+in+shoreline+urban+areas+associated+to+hydraulic+head+variations&rft.au=Normand%2C+Jonathan%3BHeggy%2C+Essam%3BAnonymous&rft.aulast=Normand&rft.aufirst=Jonathan&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-02-18 N1 - CODEN - #07548 ER - TY - JOUR T1 - Lunar proton albedo anomalies; soil, surveyors, and statistics AN - 1765873419; 2016-012112 AB - Since the launch of LRO in 2009, the CRaTER instrument has been mapping albedo protons ( approximately 100 MeV) from the Moon. These protons are produced by nuclear spallation, a consequence of galactic cosmic ray (GCR) bombardment of the lunar regolith. Just as spalled neutrons and gamma rays reveal elemental abundances in the lunar regolith, albedo protons may be a complimentary method for mapping compositional variations. We presently find that the lunar maria have an average proton yield 0.9% + or -0.3% higher than the average yield in the highlands; this is consistent with neutron data that is sensitive to the regolith's average atomic weight. We also see cases where two or more adjacent pixels (15 degrees X 15 degrees ) have significantly anomalous yields above or below the mean. These include two high-yielding regions in the maria, and three low-yielding regions in the far-side highlands. Some of the regions could be artifacts of Poisson noise, but for completeness we consider possible effects from compositional anomalies in the lunar regolith, including pyroclastic flows, antipodes of fresh craters, and so-called "red spots". We also consider man-made landers and crash sites that may have brought elements not normally found in the lunar regolith. JF - American Geophysical Union Fall Meeting AU - Wilson, J K AU - Schwadron, N AU - Spence, H E AU - Case, A W AU - Golightly, M J AU - Jordan, A AU - Looper, M D AU - Petro, N E AU - Robinson, M S AU - Stubbs, T J AU - Zeitlin, C J AU - Blake, J B AU - Kasper, J C AU - Mazur, J E AU - Smith, S S AU - Townsend, L W AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P13D EP - 3853 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765873419?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Lunar+proton+albedo+anomalies%3B+soil%2C+surveyors%2C+and+statistics&rft.au=Wilson%2C+J+K%3BSchwadron%2C+N%3BSpence%2C+H+E%3BCase%2C+A+W%3BGolightly%2C+M+J%3BJordan%2C+A%3BLooper%2C+M+D%3BPetro%2C+N+E%3BRobinson%2C+M+S%3BStubbs%2C+T+J%3BZeitlin%2C+C+J%3BBlake%2C+J+B%3BKasper%2C+J+C%3BMazur%2C+J+E%3BSmith%2C+S+S%3BTownsend%2C+L+W%3BAnonymous&rft.aulast=Wilson&rft.aufirst=J&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-02-18 N1 - CODEN - #07548 ER - TY - JOUR T1 - An improved instrument for angular scattering measurements of candidate planetary surface regolith materials at extremely small phase angles; relevance to the outer solar system AN - 1765873404; 2016-012091 AB - The reflection variation and the polarization change with phase angle of radiation scattered from particulate materials has been studied for a century in efforts to understand the nature of clouds, aerosols, planetary ring systems and planetary regolith materials. The increase in reflectance as phase angle decreases, the "Opposition Effect", has been well documented in astronomical observations and laboratory studies. Variations in linear polarization near small phase angles have also been well studied (e.g. Shkuratov et al., 2002, Rosenbush et al. 2015). While the phenomena have been well documented, a generally accepted physical explanation is still lacking despite many excellent theoretical modeling efforts. We have undertaken a reductionist approach in deconstructing the process. We have fabricated a goniometer which permits us to present samples with discrete wavelengths of monochromatic light that is linearly polarized in and perpendicular to the scattering plane. We also can illuminate our samples with both right handed and left handed circular polarization senses. Silicon Avalanche Photodiodes record the reflected radiation from the sample after it has passed through linear and circular polarizing analyzers (Kroner et al.). This reductionist approach permits us to measure the reflectance and polarization phase curves and the change in linear and circular polarization ratio (LPR and CPR) with phase angle between 0.056 and 17 degrees. LPR and CPR are found to be important indicators of the amount of multiple scattering in the medium (Hapke, 1990, Nelson et al., 1998, 2000; Hapke, 2012). This approach provides a way to distinguish between suggested models and to gain greater insight into the process of the scattering of electromagnetic radiation in a variety of media. This work was supported by NASA's Cassini Science Program, Hapke, B. (1990), Icarus, 88, 407-217. Hapke, B. (2012). Theory of reflectance and emittance spectroscopy, Cambridge U. Press, New York. Kroner et al., this meeting. Nelson et al., 1998, Icarus, 131, 223-230. Nelson et al., 2000, Icarus, 147, 535-558. Rosenbush et al., in Polarization of stars and planetary systems (Eds. Kolokolova, Hough, Levasseur-Regourd), Cambridge University Press, 2015 (in press). Shkuratov et al., 2002, Icarus 159, 396-416(2002). JF - American Geophysical Union Fall Meeting AU - Nelson, R M AU - Boryta, M D AU - Hapke, B W AU - Manatt, K AU - Kroner, D O AU - Smythe, W D AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P13C EP - 3825 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765873404?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=An+improved+instrument+for+angular+scattering+measurements+of+candidate+planetary+surface+regolith+materials+at+extremely+small+phase+angles%3B+relevance+to+the+outer+solar+system&rft.au=Nelson%2C+R+M%3BBoryta%2C+M+D%3BHapke%2C+B+W%3BManatt%2C+K%3BKroner%2C+D+O%3BSmythe%2C+W+D%3BAnonymous&rft.aulast=Nelson&rft.aufirst=R&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-02-18 N1 - CODEN - #07548 ER - TY - JOUR T1 - The search for a diurnal effect in lunar hydrogen abundance AN - 1765873299; 2016-012099 AB - Mapping the abundance of hydrogen-bearing materials has led to significant advances in our understanding of the sequestration of volatiles at the poles of the Moon. Neutron spectroscopy, and especially mapping of epithermal neutron fluxes, has been central to this endeavor (e.g., Feldman et al., Science, 1998). In this talk we present a study of the diurnal variation of the Lunar Prospector neutron spectrometer (LPNS) measurements to search for the possible low-latitude mobility of water molecules. This study is prompted by reports of local-time-varying concentrations of H2O/OH, based on near-infrared spectral reflectance data (e.g., Sunshine et al., Science, 2009), as well as reports of a diurnal hydrogen signature in the Lunar Exploration Neutron Detector epithermal neutron fluxes (eg., Livengood et al., ESF, 2014). While the spectral reflectance signatures could be due to small amounts of surficial water or hydroxyl molecules within the instrument view, the neutron result implies the diurnal mobility of volumetrically significant amounts of water and/or hydroxyl. Such an extraordinary finding, if confirmed, could have significant ramifications for our understanding of the H2O/OH distribution and mobility at the lunar surface. In this talk, we will show that Lunar Prospector epithermal neutron data exhibit diurnal variations of the same magnitude (1-2% of the average lunar epithermal neutron flux) as those reported by Livengood et al., 2014, but the LPNS variations do not follow the same diurnal trend. Instead, the LPNS variations are systemically anti-correlated with instrument temperature, and are related to very small changes in instrument gain. These findings suggest that, rather than reflecting diurnal changes in hydrogen, the temporal fluctuations in the count rates are due to small residual systematic effects in the data reduction. JF - American Geophysical Union Fall Meeting AU - Teodoro, L A AU - Lawrence, D J AU - Elphic, R C AU - Eke, V R AU - Feldman, W C AU - Maurice, S AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P13D EP - 3837 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765873299?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=The+search+for+a+diurnal+effect+in+lunar+hydrogen+abundance&rft.au=Teodoro%2C+L+A%3BLawrence%2C+D+J%3BElphic%2C+R+C%3BEke%2C+V+R%3BFeldman%2C+W+C%3BMaurice%2C+S%3BAnonymous&rft.aulast=Teodoro&rft.aufirst=L&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-02-18 N1 - CODEN - #07548 ER - TY - JOUR T1 - Ice target and gas target experiments in the IMPACT dust accelerator AN - 1765871733; 2016-012114 AB - The dust accelerator facility at the SSERVI Institute for Modeling Plasma, Atmospheres, and Cosmic Dust (IMPACT) is presently implementing two major target upgrades: a cryogenic ice target and a high-pressure gas target. The ice target consists of a LN2 cryogenic system connected to both a water-ice deposition system as well as a movable freezer/holder for a pre-mixed liquid cartridge. Planned experiments include the bombardment of a variety of frozen targets and simulated ice/regolith mixtures, and the assessment of all impact products (solid ejecta, gas, plasma) as well as spectroscopy of both the impact-produced light flashes and the reflected spectra (UV, visible, IR). Such measurements are highly relevant to both physical and chemical surface modification of airless bodies due to micrometeoroid impacts. The gas target consists of a differentially pumped chamber kept at moderate background pressures, such that high-velocity ( approximately 10 km/s) micrometeoroids are completely ablated within 10's of cm (i.e. within the measurement chamber). The chamber is configured with segmented electrodes to perform a spatially-resolved measurement of charge production during ablation, and localized light-collection optics enable an assessment of the light production (luminous efficiency). Such studies are critical to the understanding of past and future ground-based measurements of meteor ablation in Earth's atmosphere, which in turn can potentially provide the best estimates of the interplanetary dust particle flux. JF - American Geophysical Union Fall Meeting AU - Munsat, T L AU - Collette, A AU - Dee, R AU - Gruen, E AU - Horanyi, M AU - James, D AU - Janches, D AU - Kempf, S AU - Plane, J M C AU - Shu, A J AU - Simolka, J AU - Sternovsky, Z AU - Thomas, E AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P13D EP - 3856 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765871733?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Ice+target+and+gas+target+experiments+in+the+IMPACT+dust+accelerator&rft.au=Munsat%2C+T+L%3BCollette%2C+A%3BDee%2C+R%3BGruen%2C+E%3BHoranyi%2C+M%3BJames%2C+D%3BJanches%2C+D%3BKempf%2C+S%3BPlane%2C+J+M+C%3BShu%2C+A+J%3BSimolka%2C+J%3BSternovsky%2C+Z%3BThomas%2C+E%3BAnonymous&rft.aulast=Munsat&rft.aufirst=T&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-02-18 N1 - CODEN - #07548 ER - TY - JOUR T1 - Solar wind implantation into lunar regolith; hydrogen retention in a surface with defects AN - 1765871731; 2016-012097 AB - Solar wind protons are implanted directly into the top 100 nanometers of the lunar near-surface region, but can either quickly diffuse out of the surface or be retained, depending upon surface temperature and the activation energy, U, associated with the implantation site. In this work, we explore the distribution of activation energies upon implantation and the associated hydrogen-retention times; this for comparison with recent observation of OH on the lunar surface. We apply a Monte Carlo approach: for simulated solar wind protons at a given local time, we assume a distribution of U values with a central peak, Uc and width, Uw, and derive the fraction retained for long periods in the near-surface. We find that surfaces characterized by a distribution with predominantly large values of U (> 1 eV) like that expected at defect sites will retain implanted Hs (to likely form OH). Surfaces with the distribution predominantly at small values of U (< 0.2 eV) will quickly diffuse away implanted Hs. However, surfaces with a large portion of implantation activation energies between 0.3 eV < U < 0.9 eV will tend to be H-retentive in cool conditions but transform into H-emissive surfaces when warmed (as when the surface rotates into local noon). These mid-range activation energies give rise to a diurnal effect with diffusive loss of H at noontime. JF - American Geophysical Union Fall Meeting AU - Farrell, W M AU - Hurley, D AU - Zimmerman, M I AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P13D EP - 3835 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765871731?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Solar+wind+implantation+into+lunar+regolith%3B+hydrogen+retention+in+a+surface+with+defects&rft.au=Farrell%2C+W+M%3BHurley%2C+D%3BZimmerman%2C+M+I%3BAnonymous&rft.aulast=Farrell&rft.aufirst=W&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-02-18 N1 - CODEN - #07548 ER - TY - JOUR T1 - Integration of 3 consecutive years of aqueous geochemistry monitoring serpentinization at the Coast Range Ophiolite microbial observatory (CROMO), Northern California, USA AN - 1765871675; 2016-012373 AB - In August 2011, a set of 8 groundwater monitoring wells were established in actively serpentinizing ultramafic rocks of the Coast Range Ophiolite near Lower Lake, CA, as a NASA Astrobiology Institute project (Cardace et al., 2013). These wells have enabled repeated sampling and analysis of aqueous geochemistry, which we now present in an integrated model of the progress of serpentinization at this locality. The Coast Range Ophiolite Microbial Observatory (CROMO) plumbs groundwaters percolating through a tectonic melange of Jurassic-aged oceanic crust, with blocks of metabasalt and metagabbro, variably serpentinized ultramafics, Great Valley Sequence sedimentary rocks including the Jurassic Knoxville formation and the Cretaceous Crack Canyon formation, as well as rocks resulting from silica-carbonate alteration of serpentinites (marginal listvenites). All of these rock units are accessible in the McLaughlin Natural Reserve (administered by the University of California-Davis). In this work, we report on persistent geochemical trends in CROMO waters, which are gas-rich, high pH (11+), Ca (super 2+) -OH- type waters, contrast their characteristics with other continental sites of serpentinization and deep sea serpentinizing vent systems, and place the evolution of these waters in a water-rock reaction context based on geochemical modeling. JF - American Geophysical Union Fall Meeting AU - Cardace, D AU - Hoehler, Tori M AU - McCollom, T M AU - Schrenk, M O AU - Kubo, Michael D AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract V53A EP - 4835 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 02B:Hydrochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765871675?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Integration+of+3+consecutive+years+of+aqueous+geochemistry+monitoring+serpentinization+at+the+Coast+Range+Ophiolite+microbial+observatory+%28CROMO%29%2C+Northern+California%2C+USA&rft.au=Cardace%2C+D%3BHoehler%2C+Tori+M%3BMcCollom%2C+T+M%3BSchrenk%2C+M+O%3BKubo%2C+Michael+D%3BAnonymous&rft.aulast=Cardace&rft.aufirst=D&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-02-18 N1 - CODEN - #07548 ER - TY - JOUR T1 - New isotopic constraints on the sources of methane at sites of active continental serpentinization AN - 1765871658; 2016-012361 AB - At continental sites of serpentinization, high concentrations of reduced gases (e.g., H (sub 2) , CH (sub 4) ) are frequently found in association with highly-alkaline groundwater. Identification of the process(es) responsible for the generation of methane-as well as the source(s) of C & H-in these environments has been challenging. The difficulty is due to both the wide range of processes (microbial, thermal, abiotic) that could be involved, and the limited number of parameters that are accessible to currently-available analytical technologies (e.g., delta (super 13) C, delta D). The recent development of a new technique based on tunable infrared laser spectroscopy [1] has enabled the fully-resolved quantification of four isotopologues of methane: (super 12) CH (sub 4) , (super 13) CH (sub 4) , (super 12) CH (sub 3) D, and (super 13) CH (sub 3) D, a doubly-substituted ("clumped") isotopologue. We used this technique to measure (super 13) CH (sub 3) D in gases sampled from continental sites of serpentinization, in order to provide independent constraints on C-H bond-forming processes involved in the generation of the methane found in these systems. Our study sites are hosted in ultramafic units that are presently undergoing serpentinization. These include The Cedars peridotite body (Calif., USA) [2], the Coast Range Ophiolite Microbial Observatory (Calif., USA) [3], and the Chimaera seep (Tekirova Ophiolite, Turkey) [4]. Preliminary measurements indicate that Delta (super 13) CH (sub 3) D (the deviation of the abundance of (super 13) CH (sub 3) D from the stochastic distribution) in methane sampled from these sites spans nearly the entire range of thermodynamically-predicted values, from >+5 ppm ( (super 13) CH (sub 3) D-based apparent equilibrium temperature infinity). The new (super 13) CH (sub 3) D data is complemented by conventional geochemical analyses (e.g., dissolved ions/organics, delta (super 13) C, delta D) on samples collected during the same field campaigns. Our study demonstrates that the measurement of (super 13) CH (sub 3) D provides a new dimension of isotopic constraints for unraveling the complex processes controlling the distribution of methane, and the flow of energy and carbon, in areas of active continental serpentinization. [1] Ono et al. (2014) Anal. Chem. 86, 6487. [2] Morrill et al. (2013) Geochim. Cosmochim. Acta 109, 222. [3] Cardace et al. (2013) Sci. Dril. 16, 45. [4] Etiope et al. (2011) Earth Planet. Sci. Lett. 310, 96. JF - American Geophysical Union Fall Meeting AU - Wang, D T AU - Gruen, D AU - Morrill, P L AU - Rietze, A AU - Nealson, K H AU - Kubo, Michael D AU - Cardace, D AU - Schrenk, M O AU - Hoehler, Tori M AU - McCollom, T M AU - Etiope, Giuseppe AU - Hosgormez, H AU - Schoell, M AU - Ono, S AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract V53A EP - 4823 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765871658?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=New+isotopic+constraints+on+the+sources+of+methane+at+sites+of+active+continental+serpentinization&rft.au=Wang%2C+D+T%3BGruen%2C+D%3BMorrill%2C+P+L%3BRietze%2C+A%3BNealson%2C+K+H%3BKubo%2C+Michael+D%3BCardace%2C+D%3BSchrenk%2C+M+O%3BHoehler%2C+Tori+M%3BMcCollom%2C+T+M%3BEtiope%2C+Giuseppe%3BHosgormez%2C+H%3BSchoell%2C+M%3BOno%2C+S%3BAnonymous&rft.aulast=Wang&rft.aufirst=D&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - Number of references - 4 N1 - PubXState - DC N1 - Last updated - 2016-02-18 N1 - CODEN - #07548 ER - TY - JOUR T1 - Surprises in the Saturn system; 10 years of Cassini discoveries and more excitement to come AN - 1765871629; 2016-012063 AB - Cassini's findings have revolutionized our understanding of Saturn, its complex rings, the amazing assortment of moons and the planet's dynamic magnetic environment. The robotic spacecraft arrived in 2004 after a 7-year flight from Earth, dropped a parachuted probe named Huygens to study the atmosphere and surface of Saturn's big moon Titan, and commenced making astonishing discoveries that continue today. Icy jets shoot from the tiny moon Enceladus; Titan's hydrocarbon lakes and seas are dominated by liquid ethane and methane, and complex pre-biotic chemicals form in the atmosphere and rain to the surface; 3-dimensional structures rise above Saturn's rings, and a giant Saturn storm circled the entire planet. Cassini's findings at Saturn have also fundamentally altered many of our concepts of how planets form around stars. The Solstice Mission continues to provide fundamental new science as Cassini observes seasonal and temporal changes, and addresses new questions that have arisen during the mission thus far. The mission's grand finale occurs in 2017, with 22 inclined orbits between the innermost D ring and the upper portions of Saturn's atmosphere, enabling unique gravity and magnetic field measurements of the planet, unprecedented determination of the ring mass, some of the highest resolution measurements of the rings and Saturn, and in situ observations in a completely new region around the planet. Highlights from 10 years of Cassini's ambitious inquiry at Saturn will be presented along with the remarkable science that will be collected in the next three years. Cassini-Huygens is a cooperative undertaking by NASA, the European Space Agency (ESA), and the Italian Space Agency (Agenzia Spaziale Italiana, ASI). This work was carried out in part at the Jet Propulsion Laboratory, California Institute of Technology, under contract with NASA. Copyright 2014 California Institute of Technology. Government sponsorship is acknowledged. JF - American Geophysical Union Fall Meeting AU - Spilker, L J AU - Altobelli, N AU - Edgington, S G AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P12A EP - 01 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765871629?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Surprises+in+the+Saturn+system%3B+10+years+of+Cassini+discoveries+and+more+excitement+to+come&rft.au=Spilker%2C+L+J%3BAltobelli%2C+N%3BEdgington%2C+S+G%3BAnonymous&rft.aulast=Spilker&rft.aufirst=L&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-02-18 N1 - CODEN - #07548 ER - TY - JOUR T1 - Combined UAVSAR and GPS estimates of fault slip for the M 6.0 south Napa earthquake AN - 1765871627; 2016-012218 AB - The South Napa to Santa Rosa area has been observed with NASA's UAVSAR since late 2009 as part of an experiment to monitor areas identified as having a high probability of an earthquake. The M 6.0 South Napa earthquake occurred on 24 August 2014. The area was flown 29 May 2014 preceeding the earthquake, and again on 29 August 2014, five days after the earthquake. The UAVSAR results show slip on a single fault at the south end of the rupture near the epicenter of the event. The rupture branches out into multiple faults further north near the Napa area. A combined inversion of rapid GPS results and the unwrapped UAVSAR interferogram indicate nearly pure strike slip motion. Using this assumption, the UAVSAR data show horizontal right-lateral slip across the fault of 19 cm at the south end of the rupture and increasing to 70 cm northward over a distance of 6.5 km. The joint inversion indicates slip of approximately 30 cm on a network of sub-parallel faults is concentrated in a zone about 17 km long. The lower depths of the faults are 5-8.5 km. The eastern two sub-parallel faults break the surface, while three faults to the west are buried at depths ranging from 2-6 km with deeper depths to the north and west. The geodetic moment release is equivalent to a M 6.1 event. Additional ruptures are observed in the interferogram, but the inversions suggest that they represent superficial slip that does not contribute to the overall moment release. JF - American Geophysical Union Fall Meeting AU - Donnellan, Andrea AU - Parker, Jay W AU - Hawkins, Brian P AU - Hensley, Scott AU - Jones, Cathleen E AU - Owen, Susan E AU - Moore, Angelyn W AU - Wang, Jun AU - Pierce, Marlon E AU - Rundle, John B AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract S31G EP - 04 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765871627?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Combined+UAVSAR+and+GPS+estimates+of+fault+slip+for+the+M+6.0+south+Napa+earthquake&rft.au=Donnellan%2C+Andrea%3BParker%2C+Jay+W%3BHawkins%2C+Brian+P%3BHensley%2C+Scott%3BJones%2C+Cathleen+E%3BOwen%2C+Susan+E%3BMoore%2C+Angelyn+W%3BWang%2C+Jun%3BPierce%2C+Marlon+E%3BRundle%2C+John+B%3BAnonymous&rft.aulast=Donnellan&rft.aufirst=Andrea&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-02-18 N1 - CODEN - #07548 ER - TY - JOUR T1 - Deep dielectric and surface charging of regolith in the Moon's permanently shadowed regions AN - 1765871601; 2016-012060 AB - Galactic cosmic rays (GCRs) and solar energetic particles (SEPs) can penetrate into the lunar regolith, causing deep dielectric (or subsurface) charging. The regolith discharges with a timescale that depends on temperature. In permanently shadowed regions (PSRs), for example, this timescale is approximately 20 days. To estimate the effects of subsurface charging, Jordan et al. [2014] created a data-driven, deep dielectric charging model. The model used GCR data from the Cosmic Ray Telescope for the Effects of Radiation (CRaTER) on the Lunar Reconnaissance Orbiter (LRO) and SEP data from the Electron, Proton, and Alpha Monitor (EPAM) on the Advanced Composition Explorer (ACE). Data-driven runs of the model indicated that GCRs create, throughout the top tens of centimeters of regolith, a persistent electric field of up to approximately 700 V/m. They also indicated that large SEP events could create episodic subsurface electric fields of > or =106 V/m, possibly inducing dielectric breakdown. Over time, such SEP events may drive "breakdown weathering," preferentially enhancing the fraction of fine and monomineralic grains within PSRs. This model assumed that no other charging processes exist, i.e., that the environment is a vacuum. Solar wind plasma, however, can enter PSRs and charge the regolith's surface, so we revise the model to include this charging. While it cannot simultaneously nullify or decrease all the subsurface electric fields found using the model's previous iteration, adding this process does change the depth profile and maxima of the electric fields. Using the data-driven results of the revised model, we estimate the subsurface electric fields due to the solar wind, GCRs, and SEPs. We also show how including solar wind charging affects the possibility of dielectric breakdown and the importance of breakdown weathering to the regolith in PSRs. Reference: Jordan, A. P., T. J. Stubbs, J. K. Wilson, N. A. Schwadron, H. E. Spence, and C. J. Joyce (2014), Deep dielectric charging of regolith within the Moon's permanently shadowed regions, J. Geophys. Res.-Planet, DOI: 10.1002/2014JE004648. JF - American Geophysical Union Fall Meeting AU - Jordan, A AU - Stubbs, T J AU - Wilson, J K AU - Schwadron, N AU - Spence, H E AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P11D EP - 08 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765871601?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Deep+dielectric+and+surface+charging+of+regolith+in+the+Moon%27s+permanently+shadowed+regions&rft.au=Jordan%2C+A%3BStubbs%2C+T+J%3BWilson%2C+J+K%3BSchwadron%2C+N%3BSpence%2C+H+E%3BAnonymous&rft.aulast=Jordan&rft.aufirst=A&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-02-18 N1 - CODEN - #07548 ER - TY - JOUR T1 - How to snowboard on Mars AN - 1765871577; 2016-012046 AB - Long, narrow grooves found on the slopes of martian sand dunes have been cited as evidence of liquid water via the hypothesis that melt-water initiated debris flows eroded channels and deposited lateral levees. However, this theory has several short-comings for explaining the observed morphology and activity of these linear gullies. We present an alternative hypothesis that is consistent with the observed morphology, location, and current activity: that blocks of carbon dioxide ice break from over-steepened cornices as sublimation processes destabilize the surface in the spring, and these blocks move downslope, carving out leveed grooves of relatively uniform width and forming terminal pits. To test this hypothesis, we describe experiments involving water and carbon dioxide blocks on terrestrial dunes and then compare results with the martian features. We present a theoretical model of the initiation of block motion due to sublimation and use this to quantitatively compare the expected behavior of blocks on the Earth and Mars. The model demonstrates that carbon dioxide blocks can be expected to move via our proposed mechanism on the Earth and Mars, and the experiments show that the motion of these blocks will naturally create the main morphological features of linear gullies seen on Mars. JF - American Geophysical Union Fall Meeting AU - McElwaine, Jim AU - Diniega, Serina AU - Hansen, C J AU - Bourke, M C AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract NG13A EP - 01 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765871577?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=How+to+snowboard+on+Mars&rft.au=McElwaine%2C+Jim%3BDiniega%2C+Serina%3BHansen%2C+C+J%3BBourke%2C+M+C%3BAnonymous&rft.aulast=McElwaine&rft.aufirst=Jim&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-02-18 N1 - CODEN - #07548 ER - TY - JOUR T1 - Icy satellite science today and in Cassini's final three years AN - 1765871574; 2016-012064 AB - The Cassini Mission has turned our view of Saturn's icy moons from scientific sketches to fully realized worlds. Among the major discoveries are: Activity on Enceladus and associated plumes that originate in small hot spots on its south pole and that appear to be modulated by tidal forces; a liquid subsurface water ocean on Enceladus that is a habitable environment; several new moons; debris rings associated with moons; a unique equatorial ridge on Iapetus; the identity of new constituents on the moons including carbon dioxide ice on most of them and polycyclic aromatic hydrocarbons (PAHs)on Iapetus; differentiated or partially differentiated interiors; nano-iron on the surfaces of the moons and in the rings; volatile segregation on Iapetus and Hyperion; and a bewildering array of geologic processes on the small moons. But our new view of these icy worlds has spawned new questions. Among these unanswered questions are: How variable are the plumes? Have any other moons had activity similar to that on Enceladus and did it continue up to the recent past? How much dust do the moons contribute to the region around Saturn? What caused the ridge on Iapetus? What are the interiors of the moons like? How differentiated and compensated are they? Five additional targeted flybys, two of Dione and three of Enceladus, have been designed to answer these questions and will be implemented during the remainder of the Solstice Mission. The Dione flybys both include gravity passes to determine its state of differentiation. One of the flybys is optimized to measure the fields and particle environment around Dione. One of the two remote-sensing flybys of Enceladus will scrutinize the south polar region to further understand the size, temperature, and variability of the emitting areas, while the other will observe the north pole to determine why it is so different from the south. The third Enceladus flyby involves an unprecedented pass less than 50 km above the surface into the midst of the plume. The spacecraft's daring swoop into the inner parts of the Saturnian system during the F-ring and proximal orbits will bring many of the small inner satellites into clearer focus. Funded by NASA. JF - American Geophysical Union Fall Meeting AU - Buratti, B J AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P12A EP - 05 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765871574?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Icy+satellite+science+today+and+in+Cassini%27s+final+three+years&rft.au=Buratti%2C+B+J%3BAnonymous&rft.aulast=Buratti&rft.aufirst=B&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-02-18 N1 - CODEN - #07548 ER - TY - JOUR T1 - A review of Phobos surface features AN - 1765871572; 2016-012075 AB - For this research we review the morphology and distribution of craters on Phobos. We describe crater characteristics and ejecta features of the differentiated layers resulting from low-velocity impacts. We compare spacecraft imagery as a technique to determine changes in surface features on Phobos. JF - American Geophysical Union Fall Meeting AU - Smith, H D AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P12B EP - 08 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765871572?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=A+review+of+Phobos+surface+features&rft.au=Smith%2C+H+D%3BAnonymous&rft.aulast=Smith&rft.aufirst=H&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-02-18 N1 - CODEN - #07548 ER - TY - JOUR T1 - Mapping the vertical structure of the lunar regolith in volcanic regions and at constellation sites AN - 1765871568; 2016-012069 AB - The upper ten meters of the lunar regolith contains stratigraphy that provides geologic insight, and these upper layers are also what future in-situ instruments will interact with. We use a combination of remote sensing data from ground-based radar observations (Arecibo and Green Bank Telescope at wavelengths of 12.6 cm and 70 cm) and the Lunar Reconnaissance Orbiter spacecraft (Diviner, Mini-RF) to determine how the regolith structure varies across volcanic terrains and possible future landing sites. Radar can detect buried units and provide a measure of roughness, while thermal infrared data provides complimentary information on the surface and near-surface rock abundance in the upper centimeters. Radar and infrared wavelengths are also sensitive to different sized rocks, which can be used to determine where there are increased numbers centimeter-sized rocks. A comparison of these data sets reveals significant differences in regolith stratigraphy across targets. For example, small rilles on the Aristarchus Plateau to the northeast of the Constellation Aristarchus 2 site are surrounded by rock-poor deposits and are likely a secondary source of pyroclastic materials. Some rilles, such as Rima Birt, are surrounded by pyroclastics that change in depth and/or embedded rock abundance along the length of the rille. We will present results from our data analysis and subsequent mapping, focusing on rilles, pyroclastic deposits, and Constellation Region of Interest targets including the Apollo sites. JF - American Geophysical Union Fall Meeting AU - Carter, L M AU - Ghent, R R AU - Bandfield, J L AU - Campbell, B A AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P12B EP - 02 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765871568?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Mapping+the+vertical+structure+of+the+lunar+regolith+in+volcanic+regions+and+at+constellation+sites&rft.au=Carter%2C+L+M%3BGhent%2C+R+R%3BBandfield%2C+J+L%3BCampbell%2C+B+A%3BAnonymous&rft.aulast=Carter&rft.aufirst=L&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-02-18 N1 - CODEN - #07548 ER - TY - JOUR T1 - First results from the Mojave Volatiles PROSPECTOR (MVP) field campaign, a lunar polar rover mission analog AN - 1765871561; 2016-012057 AB - The Mojave Volatiles Prospector (MVP) project is a science-driven field program with the goal to produce critical knowledge for conducting robotic exploration of the Moon. MVP will feed science, payload, and operational lessons learned to the development of a real-time, short-duration lunar polar volatiles prospecting mission. MVP achieves these goals through a simulated lunar rover mission to investigate the composition and distribution of surface and subsurface volatiles in a natural and a priori unknown environment within the Mojave Desert, improving our understanding of how to find, characterize, and access volatiles on the Moon. The MVP field site is the Mojave Desert, selected for its low, naturally occurring water abundance. The Mojave typically has on the order of 2-6% water, making it a suitable lunar analog for this field test. MVP uses the Near Infrared and Visible Spectrometer Subsystem (NIRVSS), Neutron Spectrometer Subsystem (NSS), and a downward facing GroundCam camera on the KREX-2 rover to investigate the relationship between the distribution of volatiles and soil crust variation. Through this investigation, we mature robotic in situ instruments and concepts of instrument operations, improve ground software tools for real time science, and carry out publishable research on the water cycle and its connection to geomorphology and mineralogy in desert environments. A lunar polar rover mission is unlike prior space missions and requires a new concept of operations. The rover must navigate 3-5 km of terrain and examine multiple sites in just approximately 6 days. Operational decisions must be made in real time, requiring constant situational awareness, data analysis and rapid turnaround decision support tools. This presentation will focus on the first science results and operational architecture findings from the MVP field deployment relevant to a lunar polar rover mission. JF - American Geophysical Union Fall Meeting AU - Heldmann, J L AU - Colaprete, A AU - Cook, A AU - Deans, M C AU - Elphic, R C AU - Lim, D S S AU - Skok, J R AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P11D EP - 05 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765871561?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=First+results+from+the+Mojave+Volatiles+PROSPECTOR+%28MVP%29+field+campaign%2C+a+lunar+polar+rover+mission+analog&rft.au=Heldmann%2C+J+L%3BColaprete%2C+A%3BCook%2C+A%3BDeans%2C+M+C%3BElphic%2C+R+C%3BLim%2C+D+S+S%3BSkok%2C+J+R%3BAnonymous&rft.aulast=Heldmann&rft.aufirst=J&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-02-18 N1 - CODEN - #07548 ER - TY - JOUR T1 - MSL DAN passive data and interpretations AN - 1765870381; 2016-014014 AB - In its passive mode of operation, The Mars Science Laboratory Dynamic Albedo of Neutrons experiment (DAN) detects low energy neutrons that are produced by two different sources on Mars. Neutrons are produced by the rover's Multi-Mission Radioisotope Thermoelectric Generator (MMRTG) and by interactions of high energy galactic cosmic rays (GCR) within the atmosphere and regolith. As these neutrons propagate through the subsurface, their energies can be moderated by interactions with hydrogen nuclei. More hydrogen leads to greater moderation (thermalization) of the neutron population energies. The presence of high thermal neutron absorbing elements within the regolith also complicates the spectrum of the returning neutron population, as shown by Hardgrove et al. DAN measures the thermal and epithermal neutron populations leaking from the surface to infer the amount of water equivalent hydrogen (WEH) in the shallow regolith. Extensive modeling is performed using a Monte Carlo approach (MCNPX) to analyze DAN passive measurements at fixed locations and along rover traverse segments. DAN passive WEH estimates along Curiosity's traverse will be presented along with an analysis of trends in the data and a description of correlations between these results and the geologic characteristics of the surfaces traversed. JF - American Geophysical Union Fall Meeting AU - Tate, C G AU - Moersch, J AU - Jun, I AU - Ming, Douglas W AU - Mitrofanov, I G AU - Litvak, M L AU - Behar, Alberto AU - Boynton, W V AU - Drake, D AU - Lisov, D AU - Mischna, Michael A AU - Hardgrove, C J AU - Milliken, Ralph E AU - Sanin, A B AU - Starr, Richard D AU - Martin-Torres, J AU - Zorzano, M P AU - Fedosov, F AU - Golovin, D AU - Harshman, K AU - Kozyrev, A AU - Malakhov, A V AU - Mokrousov, M AU - Nikiforov, S AU - Varenikov, A AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P51C EP - 3956 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765870381?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=MSL+DAN+passive+data+and+interpretations&rft.au=Tate%2C+C+G%3BMoersch%2C+J%3BJun%2C+I%3BMing%2C+Douglas+W%3BMitrofanov%2C+I+G%3BLitvak%2C+M+L%3BBehar%2C+Alberto%3BBoynton%2C+W+V%3BDrake%2C+D%3BLisov%2C+D%3BMischna%2C+Michael+A%3BHardgrove%2C+C+J%3BMilliken%2C+Ralph+E%3BSanin%2C+A+B%3BStarr%2C+Richard+D%3BMartin-Torres%2C+J%3BZorzano%2C+M+P%3BFedosov%2C+F%3BGolovin%2C+D%3BHarshman%2C+K%3BKozyrev%2C+A%3BMalakhov%2C+A+V%3BMokrousov%2C+M%3BNikiforov%2C+S%3BVarenikov%2C+A%3BAnonymous&rft.aulast=Tate&rft.aufirst=C&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-02-18 N1 - CODEN - #07548 ER - TY - JOUR T1 - Evaluation of sedimentary and terrain parameters from MARDI camera imaging and stereogrammetry at Gale crater AN - 1765870317; 2016-013968 AB - The Mars Descent Imager (MARDI) provides mm-resolution imaging of an nearly equal 0.92 m by 0.64 cm patch of the Martian surface beneath the rover. Since Sol 310, MARDI has acquired images under twilight illumination to optimize image quality for quantitative sedimentology analysis. This imaging, carried out after each rover drive, permits systematic measurement of clast size distribution, inter-clast spacing distribution, and surface areal coverage. Sedimentological parameters derived from these observations include clast sorting (mean/var of size) and other characteristics related to transport mechanisms or in-place weathering. Measured surface parameters (e.g., clast sorting) can be correlated with surface units qualitatively defined (e.g., smooth, rocky, outcrop) in images obtained by HiRISE, MSL Mastcam and MSL Navcam. In addition, a preliminary longitudinal analysis has been conducted to examine possible source regions for the bulk of the gravels by correlating sedimentary parameters with distance from either Peace Valles or Mt. Sharp, with evidence of trends associated with inter-clast spacing. Sets of stereo MARDI images that allow the creation of high vertical precision (+ or -2 mm) digital elevation models (DEMs) have also been acquired via two techniques. First, MARDI images taken at each step of comprehensive wheel imaging activities yield 5 MARDI images with nearly equal 50% overlap. Second, two MARDI sidewalk video imaging mode (SVIM) experiments yielded a continuous set of images during a rover drive with 75-82% overlap. DEMs created via either technique can be used to quantify terrain properties and measure clast cross-sectional shapes. The microtopographic properties of the Sol 651 surface (e.g., mean/sigma of local elevation and slopes) and its sub-cm texture as measured in the SVIM-derived DEM are consistent with the characterization of the terrain as smooth with few rocks >20 cm. Characterization of the Sol 691 surface as rockier than the Sol 651 surface is supported by a DEM with larger local slopes at cm scales (mean nearly equal 40 degrees ), slope variances over 20 degrees and cm-scale height variance in excess of 2 cm. Ultimately, the analysis of clast sizes, spatial patterns, areal cover, and 3D shapes is expected to result in the identification of sub-populations, potentially tied to depositional events in the region and their sources. JF - American Geophysical Union Fall Meeting AU - Minitti, M E AU - Garvin, James B AU - Yingst, R A AU - Maki, Justin AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P43D EP - 4016 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765870317?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Evaluation+of+sedimentary+and+terrain+parameters+from+MARDI+camera+imaging+and+stereogrammetry+at+Gale+crater&rft.au=Minitti%2C+M+E%3BGarvin%2C+James+B%3BYingst%2C+R+A%3BMaki%2C+Justin%3BAnonymous&rft.aulast=Minitti&rft.aufirst=M&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-02-18 N1 - CODEN - #07548 ER - TY - JOUR T1 - A diurnal study of lunar topography to determine regolith temperature contributions to the inference of hydrogen volatiles using epithermal neutrons from the Lunar Exploration Neutron Detector (LEND) AN - 1765870187; 2016-014013 AB - In this research we investigate lunar volatiles in the Moon's southern latitudes under diurnal conditions using five years of accumulated epithermal neutron observations by the Lunar Reconnaissance Orbiter's Lunar Exploration Neutron Detector. The primary objective of this research is to determine the spatial extent and magnitude of a possible regolith temperature contribution to the Moon's epithermal leakage flux as a function of topography. Ongoing research has suggested that there exists a widespread preferential bias in hydrogen concentrations towards the Moon's poleward-facing slopes as evidenced by a localized 1-2% suppression of the lunar epithermal leakage flux relative to equivalent equator-facing slopes (McClahanan et al., Under Review 2014). Monte Carlo neutron modeling results by (Lawson et al., 2000; Little et al. 2002) found that the epithermal neutron leakage flux may be slightly enhanced nearly equal 1% with regolith temperature in lunar conditions. Contrasting temperature conditions on poleward-facing and equator-facing slopes may at least partially explain the observation of biased concentrations of hydrogen towards poleward-facing slopes. To isolate any temperature contribution, LEND night observations are mapped and correlated with temperature maps from LRO's Diviner radiometer and terrain and illumination models derived from the Lunar Observing Laser Altimeter. Night and day results are contrasted to illustrate both the magnitude and latitude extent of putative temperature effects and spatial hydrogen distributions. JF - American Geophysical Union Fall Meeting AU - McClanahan, T P AU - Mitrofanov, I G AU - Boynton, W V AU - Chin, Gordon AU - Evans, L G AU - Starr, Richard D AU - Livengood, Timothy A AU - Litvak, M L AU - Sanin, A B AU - Murray, J AU - Parsons, Ann M AU - Su, J J AU - Bodnarik, J AU - Harshman, K AU - Sagdeev, R AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P51C EP - 3955 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765870187?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=A+diurnal+study+of+lunar+topography+to+determine+regolith+temperature+contributions+to+the+inference+of+hydrogen+volatiles+using+epithermal+neutrons+from+the+Lunar+Exploration+Neutron+Detector+%28LEND%29&rft.au=McClanahan%2C+T+P%3BMitrofanov%2C+I+G%3BBoynton%2C+W+V%3BChin%2C+Gordon%3BEvans%2C+L+G%3BStarr%2C+Richard+D%3BLivengood%2C+Timothy+A%3BLitvak%2C+M+L%3BSanin%2C+A+B%3BMurray%2C+J%3BParsons%2C+Ann+M%3BSu%2C+J+J%3BBodnarik%2C+J%3BHarshman%2C+K%3BSagdeev%2C+R%3BAnonymous&rft.aulast=McClanahan&rft.aufirst=T&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-02-18 N1 - CODEN - #07548 ER - TY - JOUR T1 - Long-term passive mode data measured by the dynamic albedo of neutrons (DAN) instrument onboard Mars science laboratory (MSL) and comparison to REMS surface pressure and temperature measurements AN - 1765869935; 2016-013963 AB - Since the landing in August 2012, DAN has provided a wealth of scientific data from the successful surface operation in both Active mode and Passive mode. While the main DAN science investigation so far has focused in estimating the contents of water-equivalent-hydrogen (WEH) and chlorine-equivalent-neutron-absorption in the surface, here we will provide/discuss low energy (less than about 1 keV) background neutron environment at the Martian surface as measured by DAN Passive mode operation. Passive mode measurements have been done on almost every sols with durations ranging from 1 hour to approximately 9 hour, covering different times of a day. Neutrons from the onboard power source Multi Mission Radioisotope Thermonuclear Generator (MMRTG) and induced by Galactic Cosmic Ray (GCR)/Solar Energetic Particles (SEP) interactions with the Martian atmosphere and the surface material contribute to the DAN passive data. An approach to separate out the respective contributions from the DAN total count rates was developed previously (Jun et al., 2013) using the data collected at Rocknest (where the rover stayed from sol 60 to sol 100). The main goal of this paper is to extend the same analysis to other locations encountered during the rover traverse especially to understand the long-term (through Sol 800, covering more than 1 Martian year) behavior of the neutron environment at the Martian surface as measured by DAN in response to variation of the free space GCR/SEP environment. Extensive Monte Carlo transport simulations using Monte Carlo N-Particle eXtended (MCNPX) have been performed to support the analysis and to aid interpretation of the DAN passive data. In addition, the DAN passive data are compared to the long-term surface temperature and pressure data (both measured and modeled) from Rover Environmental Monitoring Station (REMS) to investigate possible correlation of the DAN data with ambient environmental conditions. JF - American Geophysical Union Fall Meeting AU - Jun, Insoo AU - Mitrofanov, I G AU - Litvak, M L AU - Sanin, A B AU - Martin-Torres, Javier AU - Zorzano, M P AU - Boynton, W V AU - Fedosov, F AU - Golovin, D AU - Hardgrove, C J AU - Harshman, Karl AU - Kozyrev, A AU - Kuzmin, R AU - Malakhov, A V AU - Mischna, Michael A AU - Moersch, J AU - Mokrousov, Max AU - Nikiforov, S U AU - Tate, C G AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P43D EP - 4011 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765869935?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Long-term+passive+mode+data+measured+by+the+dynamic+albedo+of+neutrons+%28DAN%29+instrument+onboard+Mars+science+laboratory+%28MSL%29+and+comparison+to+REMS+surface+pressure+and+temperature+measurements&rft.au=Jun%2C+Insoo%3BMitrofanov%2C+I+G%3BLitvak%2C+M+L%3BSanin%2C+A+B%3BMartin-Torres%2C+Javier%3BZorzano%2C+M+P%3BBoynton%2C+W+V%3BFedosov%2C+F%3BGolovin%2C+D%3BHardgrove%2C+C+J%3BHarshman%2C+Karl%3BKozyrev%2C+A%3BKuzmin%2C+R%3BMalakhov%2C+A+V%3BMischna%2C+Michael+A%3BMoersch%2C+J%3BMokrousov%2C+Max%3BNikiforov%2C+S+U%3BTate%2C+C+G%3BAnonymous&rft.aulast=Jun&rft.aufirst=Insoo&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-02-18 N1 - CODEN - #07548 ER - TY - JOUR T1 - Mars atmospheric composition, isotope ratios and seasonal variations; overview and updates of the SAM measurements at Gale crater AN - 1765869744; 2016-014019 AB - We will summarize the in situ measurements of atmospheric composition and the isotopic ratios of D/H in water, 13C/12C, 18O/16O, 17O/16O, and 13C18O/12C16O in carbon dioxide, 38Ar/36Ar, xKr/84Kr, and 15N/14N made in the Martian atmosphere at Gale Crater from the Curiosity Rover using the Sample Analysis at Mars (SAM)'s Quadrupole Mass Spectrometer (QMS) and Tunable Laser Spectrometer (TLS). With data over 700 sols since the Curiosity landing, we will discuss evidence and implications for changes on seasonal and other timescales. We will also present results for continued methane and methane enrichment experiments over this time period. Comparison between our measurements in the modern atmosphere and those of Martian meteorites like ALH 84001 implies that the martian reservoirs of CO2 and H2O were largely established approximately 4 billion years ago, but that atmospheric loss or surface interaction may be still ongoing. References: [1] Mahaffy, P. R. et al., Science, 341, 263-266, 2013, DOI:10.1126/science.1237966. [2] Webster, C. R. et al. (2013), Science, 341, 260-263, DOI:10.1126/science.1237961. [3] Wong, M. H. et al. (2013), Geophys. Res. Lett., DOI:10.1002/2013GL057840. [4] Atreya, S. K. et al. (2013), Geophys. Res. Lett., 40, 1-5, DOI:10.1002/2013GL057763. The research described here was supported by the National Aeronautics and Space Administration (NASA). JF - American Geophysical Union Fall Meeting AU - Webster, Chris R AU - Mahaffy, Paul R AU - Atreya, S K AU - Conrad, P G AU - Franz, H AU - Trainer, M G AU - Wong, M H AU - Mischna, Michael A AU - Flesch, G AU - Farley, K A AU - Owen, T C AU - Niles, P B AU - Jones, J H AU - Christensen, L E AU - Martin-Torres, J AU - Zorzano, M P AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P53D EP - 02 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765869744?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Mars+atmospheric+composition%2C+isotope+ratios+and+seasonal+variations%3B+overview+and+updates+of+the+SAM+measurements+at+Gale+crater&rft.au=Webster%2C+Chris+R%3BMahaffy%2C+Paul+R%3BAtreya%2C+S+K%3BConrad%2C+P+G%3BFranz%2C+H%3BTrainer%2C+M+G%3BWong%2C+M+H%3BMischna%2C+Michael+A%3BFlesch%2C+G%3BFarley%2C+K+A%3BOwen%2C+T+C%3BNiles%2C+P+B%3BJones%2C+J+H%3BChristensen%2C+L+E%3BMartin-Torres%2C+J%3BZorzano%2C+M+P%3BAnonymous&rft.aulast=Webster&rft.aufirst=Chris&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-02-18 N1 - CODEN - #07548 ER - TY - JOUR T1 - Determination of the possible source of chlorinated hydrocarbons detected by SAM during MSL mission AN - 1765869724; 2016-013961 AB - The SAM GC-MS instrument on the Curiosity rover allows to analyze volatile compounds from the atmosphere or volatile compounds from the Martian regolith and refractory compounds in the regolith after sample treatment using wet chemistry. One portion of the wet chemistry experiment is composed of MTBSTFA (N-methyl-N-tert-butyldimethylsilyltrifluoroacetamide) / DMF (dimethylformamide). Abundant chlorinated hydrocarbons have been detected with SAM when analyzing samples collected in several sites explored by Curiosity rover. Some of these chlorohydrocarbons are produced during pyrolysis by the reaction of Martian oxychlorine compounds in the samples with terrestrial carbon from a derivatization agent (MTBSTFA) used in SAM (1, 2). Chlorobenzene cannot be formed by the direct reaction of MTBSTFA and DMF when heated in the presence of fused silica and perchlorates under SAM-like conditions (1)) therefore two other reaction pathways for chlorobenzene were proposed : (1) reactions between the volatile thermal degradation products of perchlorates (e.g. O (sub 2) , Cl (sub 2) and HCl) and Tenax(Registered trademark) and (2) the interaction of perchlorates with organic material from the martian regolith such as benzenecarboxylates (3, 4). This study investigates several propositions for chlorinated hydrocarbon formation by looking for: (1) all products coming from the interaction of Tenax(Registered trademark) (which is part of the SAM hydrocarbon trap) and perchlorates, (2) also between some soil sample and perchlorates in the presence or absence of MTBSTFA and (c) sources of chlorinated hydrocarbon precursors. References: 1. D. P. Glavin et al.(2013) JGR 118, 1955-1973. 2. L. a Leshin et al. (2013) Science 341, 1238937. 3. C. Freissinet et al. (2014) LPSC XXXXV Abstract 2796. 4. D. Glavin et al. (2014) LPSC XXXV Abstract #1157. JF - American Geophysical Union Fall Meeting AU - Buch, Arnaud AU - Belmahdi, Imene AU - Szopa, Cyril AU - Freissinet, Caroline AU - Glavin, Daniel P AU - Francois, Pascaline AU - Coll, P J AU - Miller, K AU - Eigenbrode, J L AU - Stern, Jennifer C AU - Navarro-Gonzalez, R AU - McAdam, Amy AU - Teinturier, Samuel AU - Bonnet, Jean-Yves AU - Summons, Roger E AU - Millan, Maeva AU - Dequaire, Tristan AU - Cabane, Michel AU - Mahaffy, Paul R AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract P43D EP - 4009 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765869724?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Determination+of+the+possible+source+of+chlorinated+hydrocarbons+detected+by+SAM+during+MSL+mission&rft.au=Buch%2C+Arnaud%3BBelmahdi%2C+Imene%3BSzopa%2C+Cyril%3BFreissinet%2C+Caroline%3BGlavin%2C+Daniel+P%3BFrancois%2C+Pascaline%3BColl%2C+P+J%3BMiller%2C+K%3BEigenbrode%2C+J+L%3BStern%2C+Jennifer+C%3BNavarro-Gonzalez%2C+R%3BMcAdam%2C+Amy%3BTeinturier%2C+Samuel%3BBonnet%2C+Jean-Yves%3BSummons%2C+Roger+E%3BMillan%2C+Maeva%3BDequaire%2C+Tristan%3BCabane%2C+Michel%3BMahaffy%2C+Paul+R%3BAnonymous&rft.aulast=Buch&rft.aufirst=Arnaud&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - Number of references - 4 N1 - PubXState - DC N1 - Last updated - 2016-05-19 N1 - CODEN - #07548 ER - TY - JOUR T1 - Lumbar Puncture During Spaceflight: Operational Considerations, Constraints, Concerns, and Limitations AN - 1762367245; PQ0002463196 AB - Lumbar puncture (LP) is a commonly performed low-risk procedure terrestrially, used diagnostically for evaluation of cerebrospinal fluid (CSF) pressure as well as for collection of CSF for analysis. NASA is investigating noninvasive means for measurement of intracranial pressure (ICP) to assess the potential contribution of elevated intracranial pressures to recently reported changes in astronauts' visual acuity and eye anatomy, known collectively as the Visual Impairment/lntracranial Pressure risk. Flowever, many of these noninvasive technologies are still under development, have limited clinical validation, are several years away from being ready for in-flight use, or only provide qualitative rather than quantitative ICP values. Therefore, performance of in-flight LPs, as part of crewmember evaluation, has also been considered by NASA. This manuscript summarizes the unique operational considerations, constraints, concerns, and limitations of using traditional LP as an adjunct or as an alternative to noninvasive ICP measurements during spaceflight. JF - Aviation, Space, and Environmental Medicine AU - Barr, Yael R AD - University of Texas Medical Branch, Galveston, TX; 2101 NASA Johnson Space Center, Houston, TX, yael.barr-1@nasa.gov Y1 - 2014/12// PY - 2014 DA - December 2014 SP - 1209 EP - 1213 PB - Aerospace Medical Association, 320 S. Henry St. Alexandria VA 22314-3579 United States VL - 85 IS - 12 SN - 0095-6562, 0095-6562 KW - Health & Safety Science Abstracts KW - astronauts |a MeSH KW - microgravity |a MeSH KW - intracranial pressure |a MeSH KW - Risk assessment KW - Anatomy KW - Technology KW - H 2000:Transportation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1762367245?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ahealthsafetyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Aviation%2C+Space%2C+and+Environmental+Medicine&rft.atitle=Lumbar+Puncture+During+Spaceflight%3A+Operational+Considerations%2C+Constraints%2C+Concerns%2C+and+Limitations&rft.au=Barr%2C+Yael+R&rft.aulast=Barr&rft.aufirst=Yael&rft.date=2014-12-01&rft.volume=85&rft.issue=12&rft.spage=1209&rft.isbn=&rft.btitle=&rft.title=Aviation%2C+Space%2C+and+Environmental+Medicine&rft.issn=00956562&rft_id=info:doi/10.3357%2FASEM.3674.2014 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-02-01 N1 - Number of references - 42 N1 - Last updated - 2016-02-04 N1 - SubjectsTermNotLitGenreText - Risk assessment; Technology; Anatomy DO - http://dx.doi.org/10.3357/ASEM.3674.2014 ER - TY - JOUR T1 - Merging paleoclimatic reconstructions, observations, and models to refine drought risk assessments AN - 1756509883; 2016-006637 AB - Tree-ring reconstructions of the Palmer Drought Severity Index (PDSI) provide an important estimate of hydroclimate variability over the last several millennia that improve our understanding of regional drought risks and provide a baseline for future drought projections. Merging paleoclimatic information with observational and model data, however, involves important technical considerations associated with data and model uncertainties and the employed drought metric. Here we evaluate the interpretation of different PDSI formulations in various paleoclimatic, observational, and modeling contexts. Potential biases in tree-ring reconstructed PDSI are evaluated using Thorthwaite, Penman-Montieth, and Self-Calibrating Penman-Montieth PDSI as reconstruction targets in three diverse regions of the United States and tree-ring chronologies from the North American Drought Atlas (NADA). Minimal differences are found between the three PDSI reconstructions and all compare favorably to independently reconstructed Thornthwaite-based PDSI from the NADA. Reconstructions also compare well with model-derived estimates of PDSI (Thornthwaite and Penman-Montieth formulations), and near-surface and full-column soil moisture over the 20th century in two collections of model simulations from the Coupled Model Intercomparison Project Phase 5 database. Model-derived Thornthwaite and Penman-Monteith PDSI closely track modeled soil moisture (near-surface and full column) during the 20th century, with differences only emerging in 21st-century projections. These differences confirm the tendency of Thorntwaite-based PDSI to overestimate drying when temperatures exceed the range of its normalization interval; the more physical moisture-balance accounting of Penman-Montieth PDSI compares much better with modeled soil moisture in the projection interval. Remaining regional differences in the secular behavior of projected soil moisture and Penman-Montieth-based PDSI are interpreted in terms of underlying physical processes and temporal sampling. Results demonstrate the continued utility of PDSI as a metric of surface moisture balance and provide a framework for refining assessments of drought risks using a collection of paleoclimatic, observational, and model data. JF - American Geophysical Union Fall Meeting AU - Smerdon, J E AU - Cook, B AU - Cook, E R AU - Seager, R AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract H33N EP - 03 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1756509883?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Merging+paleoclimatic+reconstructions%2C+observations%2C+and+models+to+refine+drought+risk+assessments&rft.au=Smerdon%2C+J+E%3BCook%2C+B%3BCook%2C+E+R%3BSeager%2C+R%3BAnonymous&rft.aulast=Smerdon&rft.aufirst=J&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-01-14 N1 - CODEN - #07548 ER - TY - JOUR T1 - Implications of prospective climate change for groundwater recharge in the western United States AN - 1756509520; 2016-006632 AB - Groundwater accounts for 25% of the United States' total water supply. Despite this importance, research efforts related to the impact of climate change on water resources have focused on surface water projections. Here we present results from a United States Geological Survey John Wesley Powell Center Group that synthesized current knowledge on groundwater recharge and the impact of climate change on recharge across the western US (west of 100 degrees longitude). The specific aquifers considered included the High Plains Aquifer, San Pedro basin, Death Valley regional flow system, Wasatch Front aquifers, Central Valley Aquifer, Columbia Plateau Aquifer system, Spokane Valley-Rathdrum Prairie Glacial Aquifer, Williston basin and a regional overview of research on mountain aquifer systems. Combining existing studies on projected climate-change effects on recharge (available for half of the chosen systems) with expert knowledge of the remaining systems, several key patterns emerge across the region. First, our estimates indicate declines in recharge across the southern aquifers of 10-20% on average but with a wide range of uncertainty that surrounds zero change. Second, the northern tier of aquifers will likely see no change to slight increases in recharge. Third, mountain system recharge is expected to decline across the entire region due to changes in winter precipitation leading to decreased snowpack. Several critical knowledge gaps contributed uncertainty to our estimates. First, more studies coupling climate projections to groundwater systems are needed. Second, a generally poor understanding of mountain system processes is a source of significant uncertainty. Third, the response of focused recharge to potential changes in precipitation intensity and frequency is uncertain due to a lack of process understanding and the limited ability of climate projections to forecast changes in precipitation. Finally, feedbacks between climate, irrigation practices, and recharge result in significant uncertainties in several highly developed aquifer systems regarding how they might respond to climate change. JF - American Geophysical Union Fall Meeting AU - Meixner, T AU - Manning, A H AU - Stonestrom, D A AU - Ajami, H AU - Allen, D M AU - Blasch, K W AU - Brookfield, Andrea E AU - Castro, C L AU - Clark, J F AU - Flint, A L AU - Neff, K AU - Niraula, R AU - Rodell, Matthew AU - Scanlon, Bridget R AU - Singha, K AU - Walvoord, M A AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract H33K EP - 03 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1756509520?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Implications+of+prospective+climate+change+for+groundwater+recharge+in+the+western+United+States&rft.au=Meixner%2C+T%3BManning%2C+A+H%3BStonestrom%2C+D+A%3BAjami%2C+H%3BAllen%2C+D+M%3BBlasch%2C+K+W%3BBrookfield%2C+Andrea+E%3BCastro%2C+C+L%3BClark%2C+J+F%3BFlint%2C+A+L%3BNeff%2C+K%3BNiraula%2C+R%3BRodell%2C+Matthew%3BScanlon%2C+Bridget+R%3BSingha%2C+K%3BWalvoord%2C+M+A%3BAnonymous&rft.aulast=Meixner&rft.aufirst=T&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-01-14 N1 - CODEN - #07548 ER - TY - JOUR T1 - Satellite observations of the epic California drought AN - 1756509074; 2016-006651 AB - As California enters its third year of drought, questions of future water sustainability are inevitable. Snowpack, soil moisture, streamflow, reservoir and groundwater levels are at record lows. Mandatory water restrictions are being implemented, statewide fines for wasting water have been authorized, and billions of dollars and tens of thousands of jobs have been lost. Enhanced monitoring and modeling of the state's dwindling water supplies can help manage what remains while looking forward to a post-drought, sustainable water future. Here we demonstrate the role of satellite observations in comprehensive drought characterization and monitoring. In particular we highlight changing water supply, declining groundwater and reservoir levels, agricultural and urban stress. Potential contributions to water management will be discussed. JF - American Geophysical Union Fall Meeting AU - Famiglietti, J S AU - Thomas, B F AU - Reager, John T, II AU - Castle, S L AU - David, Cedric H AU - Thomas, A C AU - Andreadis, Konstantinos AU - Argus, Donald F AU - Behrangi, Ali AU - Farr, Thomas AU - Fisher, Josh B AU - Landerer, F W AU - Lo, M H AU - Molotch, Noah P AU - Painter, Thomas H AU - Rodell, Matthew AU - Schimel, David AU - Swenson, S C AU - Watkins, Michael M AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract H34D EP - 04 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1756509074?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Satellite+observations+of+the+epic+California+drought&rft.au=Famiglietti%2C+J+S%3BThomas%2C+B+F%3BReager%2C+John+T%2C+II%3BCastle%2C+S+L%3BDavid%2C+Cedric+H%3BThomas%2C+A+C%3BAndreadis%2C+Konstantinos%3BArgus%2C+Donald+F%3BBehrangi%2C+Ali%3BFarr%2C+Thomas%3BFisher%2C+Josh+B%3BLanderer%2C+F+W%3BLo%2C+M+H%3BMolotch%2C+Noah+P%3BPainter%2C+Thomas+H%3BRodell%2C+Matthew%3BSchimel%2C+David%3BSwenson%2C+S+C%3BWatkins%2C+Michael+M%3BAnonymous&rft.aulast=Famiglietti&rft.aufirst=J&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-01-14 N1 - CODEN - #07548 ER - TY - JOUR T1 - The GRACE mission status and future activities AN - 1752578851; 2016-001157 AB - The twin satellites of the Gravity Recovery and Climate Experiment (GRACE) were launched on March 17, 2002 and have operated continuously for almost 13 years. During this time, the results from the mission have been used to support a wide range of contemporary studies of Earth System Dynamics. The mission objectives are to sense the spatial and temporal variations of the Earth's mass through its effects on the gravity field at the GRACE satellite altitude. The primary mission objectives of GRACE are to measure: 1) the Earth's time-averaged gravity field over the mission life and 2) the monthly variations in the mean gravity field at wave lengths between 200 and 4000 km. The major cause of the time varying mass is water motion and the GRACE mission has provided a continuous decade long measurement sequences which characterizes the seasonal exchange of mass between the oceans, land, cryosphere and atmosphere; its inter-annual variability; and the climate driven secular, or long period, mass transport signals. Measurements of continental aquifer mass change, polar ice mass change and ocean bottom currents are examples of paradigm shifting remote sensing observations enabled by the GRACE satellite measurements. In 2012, a complete reanalysis of the mission data, referred to as the RL05 data release, was initiated. The monthly solutions from this effort were released in mid-2013 and have been applied in numerous science and application related investigations. The RL05 mean and combined models, involving the GRACE/GOCE data combinations, are still in development. This presentation will describe the current mission status and operations activities, which are focused on extending the mission lifetime, review some of the science improvements from the RL05 data release and describe the status and remaining tasks to complete the solution. JF - American Geophysical Union Fall Meeting AU - Tapley, B D AU - Flechtner, F AU - Bettadpur, S V AU - Watkins, M M AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract G23C EP - 03 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1752578851?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=The+GRACE+mission+status+and+future+activities&rft.au=Tapley%2C+B+D%3BFlechtner%2C+F%3BBettadpur%2C+S+V%3BWatkins%2C+M+M%3BAnonymous&rft.aulast=Tapley&rft.aufirst=B&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2015-12-31 N1 - CODEN - #07548 ER - TY - JOUR T1 - Time-variable gravity solutions from 1993 to 2013 from SLR and DORIS data AN - 1752578422; 2016-001140 AB - The GRACE mission has been highly successful in determining the time-variable gravity field of the Earth, producing monthly or even more frequent solutions (cf. 10-day) solutions using both spherical harmonics and mascons. However the GRACE time series only commences in 2002-2003 and a gap of several years may occur in the series before a GRACE follow-on satellite is launched. Satellites tracked by SLR and DORIS have also been used to study time variations in the Earth's gravitational field. In this paper we discuss the development of a new time series of low degree spherical harmonic fields based on the available SLR, DORIS data. We have developed solutions to 5 X 5 in spherical harmonics based on data from up to 18 satellites tracked with SLR and DORIS data. (i.e. Lageos1, Lageos2, Starlette, Stella, Ajisai, Lares, Blits, Larets, Westpac, TOPEX/Poseidon, Envisat, Cryosat-2, Jason-2, SPOT-2, SPOT-3, SPOT-4 and Etalon1 and Etalon2). The new solutions are consistent with the IERS2010 standards with respect to the mean pole and the definition of C21 and S21. We discuss the quality of these solutions, the contribution of the various satellites. We have applied this time series to the computation of orbits for TOPEX/Poseidon, Jason-1, & Jason-2 and to the reprocessing of DORIS data for the NASA GSFC submission to ITRF2013 (series gscwd25 and gscwd26). We discuss the derivation of these solutions and their evaluation, including their comparison with other solutions, such as those derived from GRACE data. JF - American Geophysical Union Fall Meeting AU - Lemoine, F G AU - Chinn, D S AU - Zelensky, N P AU - Beall, J W AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract G23A EP - 0472 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1752578422?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Time-variable+gravity+solutions+from+1993+to+2013+from+SLR+and+DORIS+data&rft.au=Lemoine%2C+F+G%3BChinn%2C+D+S%3BZelensky%2C+N+P%3BBeall%2C+J+W%3BAnonymous&rft.aulast=Lemoine&rft.aufirst=F&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2015-12-31 N1 - CODEN - #07548 ER - TY - JOUR T1 - Preliminary results of the 2013-2014 Sabancaya, Peru earthquakes from COSMO-skymed satellite constellation InSAR time-series AN - 1752577478; 2016-001176 AB - We examine an earthquake series in southern Peru that features a complex interaction of main- and after-shocks located in an active volcanic zone. The earthquakes started with the 17 July 2013 Mw 5.9 and 24 July 2013 Mw 4.0 earthquakes north-west 20 km NW of active Sabancaya volcano in the Andean Central volcanic Zone of Peru. During this time interval Sabancaya Volcano experienced a strong seismic swarm, fumarole activity and earthquakes possibly related to fracturing of rock and fluid movements.We analyze satellite InSAR data from the Italian Space Agency (ASI) COSMO-SkyMed (CSK) constellation and airborne InSAR data from the NASA UAVSAR. CSK provides a dense InSAR time series that track deformation from 2013 through 2014. Thanks to the short repeat interval of the CSK constellation we are able to discriminate between different earthquakes, aftershocks and post seismic processes leading to a better constraint of the sources. The initial coseismic interferograms from CSK provide a stunningly detailed image of the fault deformation, due in part to the high resolution, short wavelength (3.1 cm) of CSK, and the high coherence, and high elevation of the location. For such a relatively small earthquake there is significant shallow fault complexity and surface breaks evident. We found that post-seismic deformation starts immediately following the 17 July main event and is still ongoing. The post seismic deformation measured by the CSK InSAR time series shows a logarithmic time dependency for the southern part of the fault involved in the July 17 earthquake. Using a non-linear least squares approach we found a characteristic time constant of approximately 0.5 years. We found complex co-seismic and persistent post seismic deformation northeast of Sabancaya Volcano possibly related to the complex fault system. To model the coseismic fault geometry and fault slip distribution we use a Bayesian method to solve for the basic fault geometry. This model forms the basis for a detailed constrained least-squares fault slip model whose geometry is constrained by fault surface breaks. The detailed model forms the starting solution for a Bayesian slip inversion based on the full data and model covariance. Finally, we will assess the occurrence of these events in relation to changes in volcanic activity at nearby Sabancaya Volcano. JF - American Geophysical Union Fall Meeting AU - Milillo, P AU - Lundgren, P AU - Jolivet, R AU - Simons, M AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract G31A EP - 0390 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1752577478?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Preliminary+results+of+the+2013-2014+Sabancaya%2C+Peru+earthquakes+from+COSMO-skymed+satellite+constellation+InSAR+time-series&rft.au=Milillo%2C+P%3BLundgren%2C+P%3BJolivet%2C+R%3BSimons%2C+M%3BAnonymous&rft.aulast=Milillo&rft.aufirst=P&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2015-12-31 N1 - CODEN - #07548 ER - TY - JOUR T1 - Twenty-two years of combined GPS daily coordinate time series and derived parameters; implications for ITRF AN - 1752577190; 2016-001107 AB - The NASA-funded "Solid Earth Science ESDR System (SESES)" MEaSUREs project publishes long-term Earth Science Data Records (ESDRs), the result of a combined solution of independent daily JPL (GIPSY-OASIS software) and SIO (GAMIT software) GPS analyses, using a common source of metadata from the SOPAC database. The project has now produced up to twenty-two years of consistent, calibrated and validated ESDR products for over 3200 GPS stations from Western North America, other plate boundaries, and global networks made available through the GPS Explorer data portal and NASA's CDDIS archive. The combined solution of daily coordinate time series uses SOPAC h-files and JPL STACOV files as input to the st_filter software. The combined time series are then fit with the analyze_tseri software for daily positions/displacements, secular velocities, coseismic and postseismic displacements, as well as annual and semi-annual signatures and non-coseismic offsets due primarily to equipment (antenna) changes. Published uncertainties for the estimated parameters take into account temporal noise in the daily coordinate time series. The resulting residual coordinate time series with typical daily RMS values of 1.5-4.0 mm in the horizontal and 4.0-8.0 mm in the vertical can then can be mined for other signals such as transient deformation associated with earthquake tremor and slip (ETS) and hydrological effects. As part of this process we have catalogued and characterized coseismic displacements due to more than 80 earthquakes affecting over hundreds of regional and global stations, as well as significant postseismic deformation for the larger events. The larger events can affect stations 1000's of km from the earthquake epicenters and thus significantly affect the positions of stations used in defining the reference frame. We discuss the implications and contributions of our ongoing analysis to the long-term maintenance of the international terrestrial reference frame. JF - American Geophysical Union Fall Meeting AU - Bock, Y AU - Kedar, S AU - Moore, A W AU - Fang, P AU - Liu, Z AU - Owen, S E AU - Squibb, M B AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract G21A EP - 0436 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1752577190?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Twenty-two+years+of+combined+GPS+daily+coordinate+time+series+and+derived+parameters%3B+implications+for+ITRF&rft.au=Bock%2C+Y%3BKedar%2C+S%3BMoore%2C+A+W%3BFang%2C+P%3BLiu%2C+Z%3BOwen%2C+S+E%3BSquibb%2C+M+B%3BAnonymous&rft.aulast=Bock&rft.aufirst=Y&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2015-12-31 N1 - CODEN - #07548 ER - TY - JOUR T1 - A new global time-variable gravity mascon solution; signal and error analysis AN - 1752577062; 2016-001138 AB - The latest time-variable global gravity mascon solution product from the NASA Goddard Space Flight Center is described and analyzed. This most recent solution is estimated directly from the reduction of the GRACE L1B RL2 data with an optimized set of arc parameters and the full noise covariance. The mascons are estimated monthly with 1-arc-degree equal-area sampling where anisotropic spatial constraints are applied to maximize the recovery of signal while minimizing noise and signal leakage across the geographic constraint region boundaries. Analysis of the solution signals and errors is presented at global and regional scales and comparisons to the GRACE project solutions and independent models are presented. Time series of cryospheric and hydrologic regions are analyzed with the complete Ensemble Empirical Mode Decomposition (EEMD) with adaptive noise algorithm, which adaptively sifts the signal into intrinsic frequency-ordered modes. Lastly, the impact of different solution components is discussed. JF - American Geophysical Union Fall Meeting AU - Loomis, B AU - Luthcke, S B AU - Sabaka, T J AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract G23A EP - 0470 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 23:Geomorphology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1752577062?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=A+new+global+time-variable+gravity+mascon+solution%3B+signal+and+error+analysis&rft.au=Loomis%2C+B%3BLuthcke%2C+S+B%3BSabaka%2C+T+J%3BAnonymous&rft.aulast=Loomis&rft.aufirst=B&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2015-12-31 N1 - CODEN - #07548 ER - TY - JOUR T1 - Earth time variable gravity from a spaceborne cold atom gravity gradiometer AN - 1752577038; 2016-001161 AB - A gradiometer sensor based on the light-pulse atom (LPA) interferometry provides a technological path forward to significantly improve Earth time variable gravity observations from space. The development of a Cold Atom Gravity Gradiometer (CAGG) instrument for geodesy, based on the LPA measurement approach, was recently selected for funding under NASA's Earth Science Technology Office (ESTO) Instrument Incubator Program (IIP). The CAGG IIP development includes the design, build and testing of a high-performance, single-tensor-component gravity gradiometer applicable to Earth science studies on a satellite platform in low-Earth orbit. The gradiometer has a target gravity gradient noise floor of 7X10-5 E/Hz1/2 when extrapolated to operation in a low-noise microgravity environment. This is an improvement over the noise performance of ESA's Gravity field and steady-state Ocean Circulation Explorer (GOCE) gradiometers, whose short-term noise is approximately 3X10-3 E/Hz1/2. In contrast to NASA's Gravity Recovery and Climate Experiment (GRACE) mission, the instrument will be capable of high-precision geodesy from a single satellite platform. In contrast to previous gradiometers based on atom interferometry, the proposed instrument achieves orders-of-magnitude improvements in sensitivity by exploiting the advantages of the microgravity environment. The sensor incorporates an intrinsic method of compensation for rotation-induced errors in the gravity gradient measurement. We present the current status of the CAGG IIP development. We also present the current measurement performance estimate of the CAGG and the simulated performance of the space-based CAGG instrument in recovering Earth time variable gravity. We explore the accuracy, and spatial and temporal resolution of surface mass change observations from several space-based implementations of the CAGG instrument, including various orbit configurations and multi-satellite/multi-orbit configurations. JF - American Geophysical Union Fall Meeting AU - Luthcke, S B AU - Saif, B AU - Black, A AU - Rowlands, D D AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract G23C EP - 07 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1752577038?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Earth+time+variable+gravity+from+a+spaceborne+cold+atom+gravity+gradiometer&rft.au=Luthcke%2C+S+B%3BSaif%2C+B%3BBlack%2C+A%3BRowlands%2C+D+D%3BAnonymous&rft.aulast=Luthcke&rft.aufirst=S&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2015-12-31 N1 - CODEN - #07548 ER - TY - JOUR T1 - Structure of the Moon's Orientale Basin from gravity recovery and interior laboratory (GRAIL) observations AN - 1752577035; 2016-001124 AB - The Gravity Recovery and Interior Laboratory (GRAIL), a dual-spacecraft, gravity-mapping mission that is a component of NASA's Discovery Program, successfully concluded its Primary and Extended Missions, mapping the lunar gravity field from average altitudes of 55 km and 22.5 km, respectively. The mission is currently in its science analysis phase. During the final weeks (the "endgame") of the mapping mission, the orbital altitudes of the two spacecraft were lowered to an average of 11 km above the lunar surface. The endgame mapping strategy was designed to provide the highest-resolution coverage over the Orientale Basin, to be used to develop a gravity map of a multi-ring impact basin at unprecedented resolution. In order to achieve the highest-resolution gravitational model of Orientale, we performed a short-arc analysis of GRAIL's Ka-band range rate (KBRR) observations by adjusting a priori field GRGM900A while embedding neighbor smoothing. The combination of a spherical harmonic solution and the local analysis resolves the gravitational structure of Orientale and its environs to 3-5 km, suitable for detailed investigations of basin structure and evolution. The map reveals a correspondence of the inner depression with an excavation cavity that reflects removal of approximately 30 km of crust. The crustal thickness beneath the basin cavity may be as little as 6 km, depending on assumptions regarding the global mean thickness of the crust, the densities of the crust and mantle, and the thickness and density of the impact melt and mare fill. An annulus of negative free-air anomalies is strongest between the Inner and Outer Rook Mountains and is likely due in part to an annulus of thickened crust surrounding the excavation cavity, most likely caused by the crustal overturn during excavation (as suggested by hydrocode models). Gravitational signatures of basin rings are well resolved and distinctive, reflecting substantial fracturing or porosity as well as evidence for localized magmatic intrusion. There is no preserved evidence, however, for a transient cavity that correlates with any of the basin rings. A record of the energetics of this and other impacts is preserved in the excavated volume, the fractured crust and ring structures. JF - American Geophysical Union Fall Meeting AU - Zuber, M T AU - Smith, D E AU - Goossens, S J AU - Asmar, S W AU - Konopliv, A S AU - Lemoine, F G AU - Melosh, J, IV AU - Neumann, G A AU - Phillips, R J AU - Solomon, S C AU - Watkins, M M AU - Wieczorek, M A AU - Andrews-Hanna, J C AU - Head, J W, III AU - Kiefer, W S AU - McGovern, P J, Jr AU - Nimmo, F AU - Soderblom, J M AU - Taylor, J AU - Johnson, B C AU - Mazarico, E AU - Miljkovic, K AU - Park, R S AU - Yuan, D N AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract G22A EP - 05 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1752577035?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Structure+of+the+Moon%27s+Orientale+Basin+from+gravity+recovery+and+interior+laboratory+%28GRAIL%29+observations&rft.au=Zuber%2C+M+T%3BSmith%2C+D+E%3BGoossens%2C+S+J%3BAsmar%2C+S+W%3BKonopliv%2C+A+S%3BLemoine%2C+F+G%3BMelosh%2C+J%2C+IV%3BNeumann%2C+G+A%3BPhillips%2C+R+J%3BSolomon%2C+S+C%3BWatkins%2C+M+M%3BWieczorek%2C+M+A%3BAndrews-Hanna%2C+J+C%3BHead%2C+J+W%2C+III%3BKiefer%2C+W+S%3BMcGovern%2C+P+J%2C+Jr%3BNimmo%2C+F%3BSoderblom%2C+J+M%3BTaylor%2C+J%3BJohnson%2C+B+C%3BMazarico%2C+E%3BMiljkovic%2C+K%3BPark%2C+R+S%3BYuan%2C+D+N%3BAnonymous&rft.aulast=Zuber&rft.aufirst=M&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2015-12-31 N1 - CODEN - #07548 ER - TY - JOUR T1 - Hydrogeologic aspects of GRACE modeling; a case study of the upper Mississippi Basin AN - 1752576529; 2016-001433 AB - Gravity Recovery and Climate Experiment (GRACE) modeling is an emerging field in hydrology. Investigation of groundwater change using remote sensing data helps overcome data limitation at a global and regional scale. However, its application to regional or local scale hydrogeologic settings has been limited, especially for the use of the publically available Level 3 data. We conducted a study to estimate the change of groundwater using remotely sensed GRACE and ground truth data for the Upper Mississippi Basin in the US. The modeling conditions that affect the model accuracy are soil moisture models, groundwater fluctuations in the monitoring wells, and the hydrogeologic conditions of the aquifer. We adopted three different land surface models for soil moisture: CLM (Common Land Model), Noah, and Mosaic. The ground truth data from monitoring wells were obtained from the USGS National Water Information System. The results showed that the best-fit soil moisture model is CLM. The correlation coefficient is 86.1%, which signifies strong correlation between remote sensed and ground truth data. As for the effect of aquifer, the best selection of well observations is when the groundwater data is collected from the sand and gravel aquifer. Correlation with well observations in sand and gravel aquifers were 73.4%. The best-fit condition is therefore when the CLM was adopted for soil moisture in the GRACE calculation as well as 11 well observations from the sand and gravel aquifer used for the ground-truth calculation. Under the best-fit conditions, the correlation coefficient between the GRACE and the ground truth is 91.8%. JF - American Geophysical Union Fall Meeting AU - Skaskevych, A AU - Lee, J AU - Policelli, Fritz S AU - Bolten, John D AU - David, John L AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract H41E EP - 0880 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1752576529?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Hydrogeologic+aspects+of+GRACE+modeling%3B+a+case+study+of+the+upper+Mississippi+Basin&rft.au=Skaskevych%2C+A%3BLee%2C+J%3BPolicelli%2C+Fritz+S%3BBolten%2C+John+D%3BDavid%2C+John+L%3BAnonymous&rft.aulast=Skaskevych&rft.aufirst=A&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2015-12-31 N1 - CODEN - #07548 ER - TY - JOUR T1 - Towards a next generation gravity field mission AN - 1752576154; 2016-001162 AB - The last several years have seen different international groups conducting studies of the predicted performance of various mission architectures dedicated to measuring time variable gravity. The broad interest in this topic led to the formation of the Inter-agency Gravity Science Working Group (IGSWG), a joint collaboration between NASA and ESA. In this talk, we will provide status updates for ongoing activities on both sides of the Atlantic within, and external to, the IGSWG. We will discuss the most promising concepts in some detail, and the expected scientific improvements relative to GRACE. Additionally, we will compare the improvements realized with these "next-generation" architectures with what might be gained using a single-pair concept with a set of near-optimal constraints to remove correlated error, such as is implemented in the JPL RL05M GRACE mascon solutions. JF - American Geophysical Union Fall Meeting AU - Wiese, D N AU - Bettadpur, S V AU - Gruber, T AU - Visser, P N AU - Watkins, M M AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract G23C EP - 08 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1752576154?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Towards+a+next+generation+gravity+field+mission&rft.au=Wiese%2C+D+N%3BBettadpur%2C+S+V%3BGruber%2C+T%3BVisser%2C+P+N%3BWatkins%2C+M+M%3BAnonymous&rft.aulast=Wiese&rft.aufirst=D&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2015-12-31 N1 - CODEN - #07548 ER - TY - JOUR T1 - 3-D InSAR phase unwrapping with Extended Kalman Filter; applications to interseismic deformation detection across the North Anatolian and San Andreas fault zones AN - 1752575931; 2016-001178 AB - Interferometric Synthetic Aperture Radar (InSAR) is a method that allows researchers to map elevations, analyze surface deformation and even detect ground water level changes. The InSAR phase measurements are wrapped between 0 and 2pi and therefore have to be unwrapped to reveal the full scale of the observations. Even though there are algorithms for finding discrete irrotational fields among neighboring pixels in two-dimensions, a three dimensional unwrapping approach is important as it can constrain the solution of our data to a more robust and accurate state. We developed a 3-D unwrapping algorithm based on an Extended Kalman Filter (EKF) that is capable of simultaneously filtering, unwrapping and inverting multiple interferograms to obtain a DEM or deformation map. The method is based on a path-following algorithm that unwraps the dataset starting from a reference point and moves to the next-highest quality neighboring point. The EKF algorithm allows us to better resolve unwrapping problems, especially in vegetated areas, which tend to be decorrelated, and hence obtain more accurate results. In this study we apply our 3-D EKF unwrapping algorithm to North Anatolian and San Andreas fault zones in order to detect interseismic crustal movement across these two major fault systems. For the North Anatolian Fault we processed 37 Envisat scenes that covers the Ismetpasa segment of the fault, and generated 237 interferograms. The generated interferograms are used with both EKF and SBAS algorithms to estimate the deformation in the area. Our previous study of this segment based on the SBAS technique revealed that the Ismetpasa segment creeps at a rate of 8 mm/yr. For the San Andreas Fault (SAF) we processed 37 descending Envisat ASAR scenes acquired between November 2005 and October 2010. Our area of interest includes the central SAF near its intersection with the Garlock Fault. Initial results show deformation across the fault but the results have low fit to the data and further work is needed. In this presentation, we will also present the results from the SAF using SBAS and EKF. JF - American Geophysical Union Fall Meeting AU - Havazli, E AU - Wdowinski, S AU - Osmanoglu, B AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract G31A EP - 0392 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 16:Structural geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1752575931?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=3-D+InSAR+phase+unwrapping+with+Extended+Kalman+Filter%3B+applications+to+interseismic+deformation+detection+across+the+North+Anatolian+and+San+Andreas+fault+zones&rft.au=Havazli%2C+E%3BWdowinski%2C+S%3BOsmanoglu%2C+B%3BAnonymous&rft.aulast=Havazli&rft.aufirst=E&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2015-12-31 N1 - CODEN - #07548 ER - TY - JOUR T1 - The NASA applied science program disasters area; disaster applications research and response AN - 1739086905; 2015-114457 AB - The goal of the Natural Disaster Application Area is to use NASA's capabilities in spaceborne, airborne, surface observations, higher-level derived data products, and modeling and data analysis to improve natural disaster forecasting, mitigation, and response. The Natural Disaster Application Area applies its remote sensing observations, modeling and analysis capabilities to provide hazard and disaster information where and when it is needed. Our application research activities specifically contribute to 1) Understanding the natural processes that produce hazards, 2) Developing hazard mitigation technologies, and 3)Recognizing vulnerability of interdependent critical infrastructure. The Natural Disasters Application area selects research projects through a rigorous, impartial peer-review process that address a broad spectrum of disasters which afflict populations within the United States, regionally and globally. Currently there are 19 active projects in the research portfolio which address the detection, characterization, forecasting and response to a broad range of natural disasters including earthquakes, tsunamis, volcanic eruptions and ash dispersion, wildfires, hurricanes, floods, tornado damage assessment, oil spills and disaster data mining. The Disasters team works with federal agencies to aid the government in meeting the challenges associated with natural disaster response and to transfer technologies to agencies as they become operational. Internationally, the Disasters Area also supports the Committee on Earth Observations Working Group on Disasters, and the International Charter on Space and Disasters to increase, strengthen, and coordinate contributions of NASA Earth-observing satellites and applications products to disaster risk management. The CEOS group will lead pilot efforts focused on identifying key systems to support flooding, earthquake, and volcanic events. JF - American Geophysical Union Fall Meeting AU - Murray, J J AU - Lindsay, Francis AU - Stough, Timothy AU - Jones, Cathleen AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract NH11B EP - 3710 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1739086905?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=The+NASA+applied+science+program+disasters+area%3B+disaster+applications+research+and+response&rft.au=Murray%2C+J+J%3BLindsay%2C+Francis%3BStough%2C+Timothy%3BJones%2C+Cathleen%3BAnonymous&rft.aulast=Murray&rft.aufirst=J&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-12-04 N1 - CODEN - #07548 ER - TY - JOUR T1 - Utilizing NASA Earth observations to model volcanic hazard risk levels in areas surrounding the Copahue volcano in the Andes Mountains AN - 1739086726; 2015-114449 AB - Copahue is a stratovolcano located along the rim of the Caviahue Caldera near the Chile-Argentina border in the Andes Mountain Range. There are several small towns located in proximity of the volcano with the two largest being Banos Copahue and Caviahue. During its eruptive history, it has produced numerous lava flows, pyroclastic flows, ash deposits, and lahars. This isolated region has steep topography and little vegetation, rendering it poorly monitored. The need to model volcanic hazard risk has been reinforced by recent volcanic activity that intermittently released several ash plumes from December 2012 through May 2013. Exposure to volcanic ash is currently the main threat for the surrounding populations as the volcano becomes more active. The goal of this project was to study Copahue and determine areas that have the highest potential of being affected in the event of an eruption. Remote sensing techniques were used to examine and identify volcanic activity and areas vulnerable to experiencing volcanic hazards including volcanic ash, SO2 gas, lava flow, pyroclastic density currents and lahars. Landsat 7 Enhanced Thematic Mapper Plus (ETM+), Landsat 8 Operational Land Imager (OLI), EO-1 Advanced Land Imager (ALI), Terra Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER), Shuttle Radar Topography Mission (SRTM), ISS ISERV Pathfinder, and Aura Ozone Monitoring Instrument (OMI) products were used to analyze volcanic hazards. These datasets were used to create a historic lava flow map of the Copahue volcano by identifying historic lava flows, tephra, and lahars both visually and spectrally. Additionally, a volcanic risk and hazard map for the surrounding area was created by modeling the possible extent of ash fallout, lahars, lava flow, and pyroclastic density currents (PDC) for future eruptions. These model results were then used to identify areas that should be prioritized for disaster relief and evacuation orders. JF - American Geophysical Union Fall Meeting AU - Keith, A M AU - Weigel, A M AU - Rivas, J AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract NH11B EP - 3694 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1739086726?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Utilizing+NASA+Earth+observations+to+model+volcanic+hazard+risk+levels+in+areas+surrounding+the+Copahue+volcano+in+the+Andes+Mountains&rft.au=Keith%2C+A+M%3BWeigel%2C+A+M%3BRivas%2C+J%3BAnonymous&rft.aulast=Keith&rft.aufirst=A&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-12-04 N1 - CODEN - #07548 ER - TY - JOUR T1 - UAVSAR and TerraSAR-X based InSAR detection of localized subsidence in the New Orleans area AN - 1739085740; 2015-114411 AB - Vulnerability of the US Gulf coast to inundation has received increased attention since hurricanes Katrina and Rita. Compounding effects of sea level rise, wetland loss, and regional and local subsidence makes flood protection a difficult challenge, and particularly for the New Orleans area. Key to flood protection is precise knowledge of elevations and elevation changes. Analysis of historical and continuing geodetic measurements show surprising complexity, including locations subsiding more rapidly than considered during planning of hurricane protection and coastal restoration projects. Combining traditional, precise geodetic data with interferometric synthetic aperture radar (InSAR) observations can provide geographically dense constraints on surface deformation. The Gulf Coast environment is challenging for InSAR techniques, especially with systems not designed for interferometry. We use two InSAR capable systems, the L-band (24 cm wavelength) airborne JPL/NASA UAVSAR, and the DLR/EADS Astrium spaceborne TerraSAR X-band (3 cm wavelength), and compare results. First, we are applying pair-wise InSAR to the longer wavelength UAVSAR data to detect localized elevation changes potentially impacting flood protection infrastructure from 2009-2014. We focus on areas on and near flood protection infrastructure to identify changes indicative of subsidence, structural deformation, and/or seepage. The Spaceborne TerraSAR X-band SAR system has relatively frequent observations, and dense persistent scatterers in urban areas, enabling measurement of very small displacements. We compare L-band UAVSAR results with permanent scatterer (PS-InSAR) and Short Baseline Subsets (SBAS) interferometric analyses of a stack composed by 28 TerraSAR X-band images acquired over the same period. Thus we can evaluate results from the different radar frequencies and analyses techniques. Preliminary results indicate subsidence features potentially of a variety of causes, including ground water pumping to post recent construction ground compaction. Our overall goal is to enable incorporation of InSAR into the decision making process via identification and delineation of areas of persistent subsidence, and provide input to improve monitoring and planning in flood risk areas. JF - American Geophysical Union Fall Meeting AU - Blom, Ronald G AU - An, Karen AU - Jones, Cathleen E AU - Latini, Daniele AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract H31L EP - 03 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1739085740?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=UAVSAR+and+TerraSAR-X+based+InSAR+detection+of+localized+subsidence+in+the+New+Orleans+area&rft.au=Blom%2C+Ronald+G%3BAn%2C+Karen%3BJones%2C+Cathleen+E%3BLatini%2C+Daniele%3BAnonymous&rft.aulast=Blom&rft.aufirst=Ronald&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-12-04 N1 - CODEN - #07548 ER - TY - JOUR T1 - Energy and heat transport constraints on tropical climates of the Sturtian Snowball Earth AN - 1739085724; 2015-114705 AB - It remains uncertain whether the maximum extent of Neoproterozoic Snowball Earth glaciations involves total sea ice coverage or significant open ocean. Models disagree, and the geologic record is inconclusive, but a resolution to this key question has important ramifications for how climate processes function at extremes, as well as for the distribution of habitable space for nascent multicellular life. Here we report results of new Sturtian (ca 715 Ma) Snowball Earth simulations that explore the response to three primary climate forcings often cited as contributing to Neoproterozoic cold climates: a continent distribution in low to mid-latitudes, a reduction in solar input (-6.19%), and lowered atmospheric CO2 (40 ppm). The simulations use the latest GISS ModelE2-R, with a coupled dynamic ocean using a 2 degrees X2.5 degrees atmosphere and 1 degrees X1.25 degrees ocean resolution. The GCM includes dynamic sea ice, an improved ocean mixing scheme, and continental runoff directed via a river drainage scheme. The GCM responds rapidly to the extreme forcings, and within 300 years the sea ice front reaches the subtropics, but after 1000 years the sea ice extent remains stable near 30 degrees latitude, despite global average surface air temperatures dropping to -12 degrees C. Tropical sea surface temperatures are above 5 degrees C and nearly half the ocean surface area remains ice-free. This result differs from published results using CCSM4, but is consistent with previous NASA GCMs. Examining the tropical energy fluxes and heat transports from both atmosphere and oceans shows that for the GISS model, increases in tropical sea ice would require higher surface albedos, stronger poleward heat transports, or a reduced greenhouse effect. Atmospheric composition and cloud forcing are likely sources of this major difference in response amongst the newest versions of these IPCC models. Tropical cloud forcing must be a major suspect, since it also differs dramatically among IPCC models for future climate. We continue to stress that our "slushball" solution can readily accommodate the geological record of Neoproterozoic glacial activity, as well as the ecological space needed for the development of complex life. JF - American Geophysical Union Fall Meeting AU - Sohl, L E AU - Chandler, M A AU - Jonas, Jeffrey A AU - Rind, D H AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract PP43C EP - 1487 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 12:Stratigraphy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1739085724?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Energy+and+heat+transport+constraints+on+tropical+climates+of+the+Sturtian+Snowball+Earth&rft.au=Sohl%2C+L+E%3BChandler%2C+M+A%3BJonas%2C+Jeffrey+A%3BRind%2C+D+H%3BAnonymous&rft.aulast=Sohl&rft.aufirst=L&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-12-04 N1 - CODEN - #07548 ER - TY - JOUR T1 - Application of remotely sensed data for landslide hazard assessment and forecasting AN - 1739085423; 2015-114495 AB - Over the past five years, rainfall-triggered landslides have caused over 16,000 fatalities in 65 countries and have resulted in higher annual property losses than any other natural disaster. Yet while hurricanes and earthquakes have global monitoring systems in place to alert disaster response agencies, governments and regional humanitarian groups of potential disasters and related impacts, no such real-time monitoring system exists for rainfall-triggered landslides. This work introduces a new regionally-based system to evaluate landslide hazards in near-real-time through the application of remotely sensed and in situ data. Build upon existing modeling efforts, the landslide hazard assessment and nowcasting system couples satellite precipitation data, a modeled and satellite-based soil moisture product and susceptibility information to improve the characterization of areas that may experience landslide activity. The goal of this system is to better inform decision-making and disaster response agencies on landslide hazards at the regional scale. This system outputs a straightforward, easily-interpreted set of landslide hazard assessment products available in near real-time for the Mesoamerica region that can be used to both identify landslide-prone areas and forecast the potential location and timing of landslide initiation in the future. This research presents the prototype regional model tested over Central America and the Caribbean region using satellite-based information including Tropical Rainfall Measurement Mission (TRMM) near real-time rainfall, modeled soil moisture, topography, soils, road networks and distance to fault zones. These variables are integrated within a simple algorithm framework and model outputs provide a probabilistic representation of potential landslide activity over the region. This presentation summarizes the preliminary results of this modeling framework, discusses the utility of these products for landslide hazard characterization, and outlines the path forward for this modeling approach. JF - American Geophysical Union Fall Meeting AU - Bach Kirschbaum, Dalia AU - Stanley, Thomas AU - Simmons, John AU - Cappelaere, Patrice AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract NH13B EP - 01 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1739085423?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Application+of+remotely+sensed+data+for+landslide+hazard+assessment+and+forecasting&rft.au=Bach+Kirschbaum%2C+Dalia%3BStanley%2C+Thomas%3BSimmons%2C+John%3BCappelaere%2C+Patrice%3BAnonymous&rft.aulast=Bach+Kirschbaum&rft.aufirst=Dalia&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-12-04 N1 - CODEN - #07548 ER - TY - JOUR T1 - An information architect's view of Earth observations for disaster risk management AN - 1739085358; 2015-114456 AB - Satellite observations play a significant role in supporting disaster response and risk management, however data complexity is a barrier to broader use especially by the public. In December 2013 the Committee on Earth Observation Satellites Working Group on Information Systems and Services documented a high-level reference model for the use of Earth observation satellites and associated products to support disaster risk management within the Global Earth Observation System of Systems context. The enterprise architecture identified the important role of user access to all key functions supporting situational awareness and decision-making. This paper focuses on the need to develop actionable information products from these Earth observations to simplify the discovery, access and use of tailored products. To this end, our team has developed an Open GeoSocial API proof-of-concept for GEOSS. We envision public access to mobile apps available on smart phones using common browsers where users can set up a profile and specify a region of interest for monitoring events such as floods and landslides. Information about susceptibility and weather forecasts about flood risks can be accessed. Users can generate geo-located information and photos of local events, and these can be shared on social media. The information architecture can address usability challenges to transform sensor data into actionable information, based on the terminology of the emergency management community responsible for informing the public. This paper describes the approach to collecting relevant material from the disasters and risk management community to address the end user needs for information. The resulting information architecture addresses the structural design of the shared information in the disasters and risk management enterprise. Key challenges are organizing and labeling information to support both online user communities and machine-to-machine processing for automated product generation. JF - American Geophysical Union Fall Meeting AU - Moe, Karen AU - Evans, John AU - Cappelaere, P G AU - Frye, Stuart W AU - Mandl, Daniel AU - Dobbs, Kevin AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract NH11B EP - 3708 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1739085358?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=An+information+architect%27s+view+of+Earth+observations+for+disaster+risk+management&rft.au=Moe%2C+Karen%3BEvans%2C+John%3BCappelaere%2C+P+G%3BFrye%2C+Stuart+W%3BMandl%2C+Daniel%3BDobbs%2C+Kevin%3BAnonymous&rft.aulast=Moe&rft.aufirst=Karen&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-12-04 N1 - CODEN - #07548 ER - TY - JOUR T1 - Time-transfer experiments between satellite laser ranging ground stations via one-way laser ranging to the Lunar Reconnaissance Orbiter AN - 1739085260; 2015-116760 AB - Satellite laser ranging (SLR) has long been used to measure the distance from a ground station to an Earth-orbiting satellite in order to determine the spacecraft position in orbit, and to conduct other geodetic measurements such as plate motions. This technique can also be used to transfer time between the station and satellite, and between remote SLR sites, as recently demonstrated by the Time Transfer by Laser Link (T2L2) project by the Centre National d'Etudes Spatiaes (CNES) and Observatoire de la Cote d'Azur (OCA) as well as the Laser Time Transfer (LTT) project by the Shanghai Astronomical Observatory, where two-way and one-way measurements were obtained at the same time. Here we report a new technique to transfer time between distant SLR stations via simultaneous one-way laser ranging (LR) to the Lunar Reconnaissance Orbiter (LRO) spacecraft at lunar distance. The major objectives are to establish accurate ground station times and to improve LRO orbit determination via these measurements. The results of these simultaneous LR measurements are used to compare the SLR station times or transfer time from one to the other using times-of-flight estimated from conventional radio frequency tracking of LRO. The accuracy of the time transfer depends only on the difference of the times-of-flight from each ground station to the spacecraft, and is expected to be at sub-nano second level. The technique has been validated by both a ground-based experiment and an experiment that utilized LRO. Here we present the results to show that sub-nanosecond precision and accuracy are achievable. Both experiments were carried out between the primary LRO-LR station, The Next Generation Satellite Laser Ranging (NGSLR) station, and its nearby station, Mobile Laser System (MOBLAS-7), both at Greenbelt, Maryland. The laser transmit time from both stations were recorded by the same event timer referenced to a Hydrogen maser. The results have been compared to data from a common All-View GPS, and showed < 1 nanosecond precision and accuracy over 6 months. Time transfer experiments between NGSLR and McDonald Observatory SLR station at Fort Davis, Texas have also been conducted and analysis of the data will be presented. JF - American Geophysical Union Fall Meeting AU - Mao, D AU - Sun, X AU - Skillman, D R AU - McGarry, J AU - Hoffman, E AU - Neumann, G A AU - Torrence, M H AU - Smith, D E AU - Zuber, M T AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract G13A EP - 0503 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1739085260?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Time-transfer+experiments+between+satellite+laser+ranging+ground+stations+via+one-way+laser+ranging+to+the+Lunar+Reconnaissance+Orbiter&rft.au=Mao%2C+D%3BSun%2C+X%3BSkillman%2C+D+R%3BMcGarry%2C+J%3BHoffman%2C+E%3BNeumann%2C+G+A%3BTorrence%2C+M+H%3BSmith%2C+D+E%3BZuber%2C+M+T%3BAnonymous&rft.aulast=Mao&rft.aufirst=D&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-12-04 N1 - CODEN - #07548 ER - TY - JOUR T1 - Estimating susceptibility and magnetization within the Earth's continental crust; petrophysical and satellite approaches AN - 1739082728; 2015-116925 AB - Magnetic models (Xchaos) made from Champ and Orsted data are used to place constraints on the average magnetic susceptibility and its variability in the continental crust. Estimates of magnetic crustal thickness are made in a two-step process. The first step uses a recent seismic model (Crust1.0) to estimate the thickness of crystalline crust above the Moho, modified in the Andes and the Himalayas to account for the non-magnetic lower crust there. The second step calculates the magnetic field expected from such a layer of crystalline rock assuming the magnetization is solely induced in the earth's main field by rock of constant magnetic susceptibility, and modifies the starting crustal thickness to bring it into agreement with the Xchaos model. This global model removes spherical harmonic degrees less than 15 to account for the core field mask. We restrict our attention to the continental crust, in particular to Australia, western North America, and Scandinavia. Petrophysical and petrological data from Scandinavian rocks that have been deep in the crust help place limits on susceptibility values. Our simulations use two susceptibilities, 0.02 and 0.04 SI. The mean crystalline crustal thickness from the seismic model is 42 and 37 km in western North America and Australia, respectively, and the modification with the magnetic data makes little change to the mean crustal thickness, irrespective of whether the susceptibility is 0.02 or 0.04 SI. However, the modification with the magnetic data does make a significant difference to the standard deviation of the crustal thickness, increasing it by a factor of two in the case of a susceptibility of 0.04, and by a factor of four in the case of a susceptibility of 0.02. The changes to the standard deviation of the crustal thickness are also evident in the Scandinavian data, but the mean crystalline crustal thickness of 45 km is significantly larger than that found from either magnetic model (33 and 30 km). The differences could be due to magnetic remanence oblique to the present field, or to weaker magnetizations in the crust. We use Swarm data from 10 April (Kp<0+) to place bounds on the minimum apparent magnetization required, irrespective of direction, to explain the observations, in an approach pioneered by Parker. JF - American Geophysical Union Fall Meeting AU - Purucker, Michael E AU - McEnroe, Suzanne A AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract GP43B EP - 06 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1739082728?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Estimating+susceptibility+and+magnetization+within+the+Earth%27s+continental+crust%3B+petrophysical+and+satellite+approaches&rft.au=Purucker%2C+Michael+E%3BMcEnroe%2C+Suzanne+A%3BAnonymous&rft.aulast=Purucker&rft.aufirst=Michael&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-12-04 N1 - CODEN - #07548 ER - TY - JOUR T1 - Magnetic crustal thickness estimations versus models for crustal magnetization AN - 1739082480; 2015-116859 AB - Many studies have attempted to evaluate the magnetic crustal thickness because this can provide an estimate of the depth to Curie temperature isotherm in areas characterized by high heat flow and an estimate of the depth to the Moho in areas of low heat flow if the mantle is considered non magnetic. There are currently two families of methods used to estimate crustal magnetic thickness. Statistical methods are based on the analysis of the power spectrum of magnetic anomalies and assume a random or fractal model for crustal magnetization. Equivalent dipole methods assume that the crust contains only induced magnetization characterized by a constant magnetic susceptibility and that it can be approximated by a surface distribution of dipoles. Although the first family of methods is most often applied to airborne data and the second family of methods is most often applied to satellite data, they can potentially be applied to both types of data. Because these families of methods rely on very different assumptions, they are not expected to provide the same thickness estimates and depending on the study area one method may be more applicable than the other. In this study, we apply both a statistical method and a dipole equivalent method for estimating the magnetic crustal thickness using aeromagnetic compilations available in the Western US, Greenland, and Australia, and also using synthetic datasets. We compare results from both methods and discuss similarities and differences with respect to the geological context and the data quality. JF - American Geophysical Union Fall Meeting AU - Bouligand, Claire AU - Purucker, Michael E AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract GP33A EP - 3697 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1739082480?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Magnetic+crustal+thickness+estimations+versus+models+for+crustal+magnetization&rft.au=Bouligand%2C+Claire%3BPurucker%2C+Michael+E%3BAnonymous&rft.aulast=Bouligand&rft.aufirst=Claire&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-12-04 N1 - CODEN - #07548 ER - TY - JOUR T1 - Sensing the electrical conductivity of the upper mantle and lithosphere using satellite magnetic signal due to ocean tidal flow AN - 1739082418; 2015-116926 AB - A few scientific groups convincingly demonstrated that the magnetic fields induced by the lunar semidiurnal (M2) ocean flow can be identified in magnetic satellite observations. These results support the idea to recover M2 magnetic signals from Swarm data, and to use these data for constraining lithosphere and upper mantle electrical conductivity in oceanic regions. Induction studies using ionospheric and magnetospheric primary sources with periods of about one day are sensitive to mantle conductivity at a few hundred kilometers depth because of the inductive coupling between primary and induced sources. In contrast, using oceanic tides as a signal allows studying shallower regions since the coupling is galvanic. This corresponds to global electric sounding. In this study we perform global 3-D EM numerical simulations in order to investigate the sensitivity of M2 signals to conductivity distributions at different depths. The results of sensitivity analysis are discussed, and comparison of the modelled M2 signals with those recovered by Comprehensive Inversion from one year of Swarm data is presented. JF - American Geophysical Union Fall Meeting AU - Schnepf, N R AU - Kuvshinov, A V AU - Sabaka, Terence J AU - Olsen, N AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract GP43B EP - 07 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1739082418?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Sensing+the+electrical+conductivity+of+the+upper+mantle+and+lithosphere+using+satellite+magnetic+signal+due+to+ocean+tidal+flow&rft.au=Schnepf%2C+N+R%3BKuvshinov%2C+A+V%3BSabaka%2C+Terence+J%3BOlsen%2C+N%3BAnonymous&rft.aulast=Schnepf&rft.aufirst=N&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-12-04 N1 - CODEN - #07548 ER - TY - JOUR T1 - 15 years of Terra, 14 years of application usage AN - 1739082037; 2015-116799 AB - The instruments onboard the Terra spacecraft were designed for long-term Earth science research but not long after launch it became apparent that this data and imagery could be made available in near real-time for applications users. During the year 2000 fire season in the western United States, the US Forest Service approached NASA with a request to expedite MODIS fire detections. The Rapid Response system was created to generate fire detections as well as true color imagery in both swath and geo-referenced formats. This imagery was used by a wide variety of applications, such as NASA's AERONET program, the USDA Foreign Agricultural Service, Antarctic resupply shipping, flood mapping for relief agencies, Deepwater Horizon monitoring, volcanic ash monitoring, as well as print, televised, and Internet media. From 2004, the University of Maryland's Web Fire Mapper helped distribute fire detection information in a variety of formats. However, the applications community expressed the need for near-real time access to the underlying data. This requirement led to the development of the Land Atmosphere Near real-time Capability for EOS (Earth Observing System) (LANCE) in 2009. To achieve the latency requirements, many components of the EOS satellite operations, ground and science processing systems had to be made more efficient. In addition, products that require ancillary data were modified to use alternate inputs. Forty Terra MODIS data products are currently available from LANCE. LANCE also includes data from other instruments including AIRS, AMSR-E, MLS, and OMI. To help near-real time users navigate this large data offering, a new imagery service was begun in 2011--Global Imagery Browse Services (GIBS). This service provides very responsive viewing using the Web Map Tile Service protocol. These programs will continue to support and expand the use of Terra data for near-real time applications well into the future. JF - American Geophysical Union Fall Meeting AU - Schmaltz, Jeffrey E AU - Alarcon, Christian AU - Boller, Ryan A AU - Cechini, Matthew F AU - Davies, D AU - Fu, Gary AU - Gunnoe, Taylor AU - Hall, Jeffrey R AU - Huang, Thomas AU - Ilavajhala, Shriram AU - Jackson, Maki AU - King, Jerome A AU - McGann, Mike AU - Murphy, Kevin J AU - Roberts, Joe T AU - Thompson, Charles K AU - Ye, Gang AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract GC54C EP - 08 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1739082037?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=15+years+of+Terra%2C+14+years+of+application+usage&rft.au=Schmaltz%2C+Jeffrey+E%3BAlarcon%2C+Christian%3BBoller%2C+Ryan+A%3BCechini%2C+Matthew+F%3BDavies%2C+D%3BFu%2C+Gary%3BGunnoe%2C+Taylor%3BHall%2C+Jeffrey+R%3BHuang%2C+Thomas%3BIlavajhala%2C+Shriram%3BJackson%2C+Maki%3BKing%2C+Jerome+A%3BMcGann%2C+Mike%3BMurphy%2C+Kevin+J%3BRoberts%2C+Joe+T%3BThompson%2C+Charles+K%3BYe%2C+Gang%3BAnonymous&rft.aulast=Schmaltz&rft.aufirst=Jeffrey&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-12-04 N1 - CODEN - #07548 ER - TY - JOUR T1 - Can we derive the current density from three point LEO measurements of the magnetic field perturbations? AN - 1739081838; 2015-116934 AB - In this paper, we perform critical test of the well-known curlometer technique. The curlometer technique allows a derivation of the current density using measurements of the magnetic field at spatially separated points. At LEO altitudes this generally three dimensionally problem is simplified to a two dimensions by the fact that the current is almost solely flowing along the magnetic field lines. Strictly speaking the current density is derived from integration around a closed loop but in the curlometer technique this integration is simplified to a summation over just three points. In this paper we present a critical analysis of when and to what extend this approximation is valid. We show some simple theoretical considerations, results from a series of simulations, and finally apply the knowledge to ESA SWARM measurements. JF - American Geophysical Union Fall Meeting AU - Gjerloev, Jesper W AU - Potter, Matthew AU - Muhleisen, M AU - Friel, M M AU - Martin, P AU - Le, Guan AU - Stolle, C AU - Luhr, H AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract GP51A EP - 3710 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1739081838?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Can+we+derive+the+current+density+from+three+point+LEO+measurements+of+the+magnetic+field+perturbations%3F&rft.au=Gjerloev%2C+Jesper+W%3BPotter%2C+Matthew%3BMuhleisen%2C+M%3BFriel%2C+M+M%3BMartin%2C+P%3BLe%2C+Guan%3BStolle%2C+C%3BLuhr%2C+H%3BAnonymous&rft.aulast=Gjerloev&rft.aufirst=Jesper&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-12-04 N1 - CODEN - #07548 ER - TY - JOUR T1 - The Swarm Initial Field Model; a model of the Earth's magnetic field for 2014 determined from one year of swarm satellite constellation data AN - 1739081825; 2015-116927 AB - Almost one year of data from ESA's Swarm constellation mission are used to derive a model of the Earth's magnetic field and its time variation (secular variation). The model describes contributions from the core and lithosphere as well as large-scale contributions from the magnetosphere (and its Earth-induced counterpart). We use data from geomagnetic quiet times (Kp less than 2o, time change of Dst-index less than 2 nT/hr) and dark regions (sun below horizon) and co-estimate the Euler angles describing the rotation between the vector magnetometer instrument frame and the North-East-Center (NEC) frame. In addition to the magnetic field observations provided by each of the three Swarm satellites we include the East-west magnetic gradient information provided by the lower Swarm satellite pair, thereby explicitly taking advantage of the constellation aspect of Swarm. We assess the spatial and temporal model resolution that can be obtained from one year of Swarm satellite data by comparison with other recent models that also include non-Swarm magnetic observations. JF - American Geophysical Union Fall Meeting AU - Olsen, N AU - Hulot, G AU - Lesur, V AU - Finlay, C C AU - Beggan, C AU - Chulliat, Arnaud AU - Sabaka, Terence J AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract GP51A EP - 3702 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1739081825?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=The+Swarm+Initial+Field+Model%3B+a+model+of+the+Earth%27s+magnetic+field+for+2014+determined+from+one+year+of+swarm+satellite+constellation+data&rft.au=Olsen%2C+N%3BHulot%2C+G%3BLesur%2C+V%3BFinlay%2C+C+C%3BBeggan%2C+C%3BChulliat%2C+Arnaud%3BSabaka%2C+Terence+J%3BAnonymous&rft.aulast=Olsen&rft.aufirst=N&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-12-04 N1 - CODEN - #07548 ER - TY - JOUR T1 - Measurement of subsidence across the Sacramento delta; applying InSAR to a coherence-challenged area AN - 1734270011; 2015-108763 AB - InSAR-based measurement of ground subsidence rates are notoriously challenging in agricultural areas because of rapid temporal decorrelation introduced by physical disturbance of the ground and water content changes. This can be mitigated by the use of longer wavelength instruments and time series techniques, but measurement remains a challenge particularly in areas where the deformation rates are low. Here we discuss techniques developed to work with low coherence data in a project to measure sub-island scale subsidence rates across the Sacramento-San Joaquin Delta using SBAS processing of L-band UAVSAR data collected between July 2009 and February 2014. Determination of rates in this area is particularly valuable because of the Delta's critical importance as a water resource for the State of California and as an enormously productive estuarine ecosystem. Subsidence across the region has left most of the man-made islands below mean sea level and the levees maintaining their integrity are subject to a wide range of threats, including failure during earthquakes on the nearby Hayward and San Andreas fault. This research was conducted at the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration. JF - American Geophysical Union Fall Meeting AU - Jones, Cathleen E AU - Sharma, Priyanka AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract G42A EP - 01 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 23:Geomorphology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1734270011?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Measurement+of+subsidence+across+the+Sacramento+delta%3B+applying+InSAR+to+a+coherence-challenged+area&rft.au=Jones%2C+Cathleen+E%3BSharma%2C+Priyanka%3BAnonymous&rft.aulast=Jones&rft.aufirst=Cathleen&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-11-19 N1 - CODEN - #07548 ER - TY - JOUR T1 - A new persistent scatterer InSAR method based on phase decomposition, with application to subsidence in greater Houston area AN - 1734269861; 2015-108778 AB - A Phase-Decomposition-based Persistent Scatterer InSAR (PD-PSInSAR) method is developed in this study to improve the coherence and spatial density of targets. The general idea of conventional PSInSAR is to find and analyze pointwise stable persistent scatterers (PS). In order to improve the PS network density, distributed scatterers (DS) has also been utilized in several advanced PSInSAR techniques. Unlike these techniques which assumes that a DS involves many independent small scatterers sharing the same scatterering mechanism, this study considers additional two general cases: (1) a DS that contains many small scatterers sharing two or more different scatterering mechanisms, (2) two or more dominant scatterers with different scatterering mechanisms that exist within the same resolution pixel. DSs with multiple scatterering mechanisms can occur in rural areas and some urban areas, especially with low spatial resolution. Extracting information from DSs with multiple scatterering mechanisms is difficult for the existing DS algorithms because of the interference between different scatterering mechanisms. The new PD-PSInSAR method is developed to overcome this limit by using Eigen-decomposition to estimate the phases corresponding to the different scatterering mechanisms, and then implement these estimated phases in conventional PSInSAR process. Therefore, the interference between different scattering mechanisms becomes mitigated and the obtained phases are expected to have better coherence. This PD-PSInSAR technique is used to estimate the land deformation over the greater Houston area using 25 ENVISAT ASAR data spanning from July 2004 to June 2010. The deformation map reveals significant subsidence up to approximately 2 cm/year over north and northwestern part of greater Houston. Comparison between the conventional PSInSAR and PD-PSInSAR method verifies that the proposed method can detect more PSs and provide better coherences. JF - American Geophysical Union Fall Meeting AU - Cao, N AU - Lee, H AU - Jung, H C AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract G43A EP - 0498 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 23:Geomorphology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1734269861?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=A+new+persistent+scatterer+InSAR+method+based+on+phase+decomposition%2C+with+application+to+subsidence+in+greater+Houston+area&rft.au=Cao%2C+N%3BLee%2C+H%3BJung%2C+H+C%3BAnonymous&rft.aulast=Cao&rft.aufirst=N&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-11-19 N1 - CODEN - #07548 ER - TY - JOUR T1 - Impact scaling for lunar impact basins; contributions from GRAIL and hydrocode modeling AN - 1734269808; 2015-108719 AB - Impact events forming large craters (or, impact basins) several hundreds of kilometers in diameter have profoundly affected the evolution of the terrestrial planets. Previously acquired gravity and topography data of the Moon have shown evidence of crustal thinning in the central regions of these basins, which is a consequence of the basin formation process. High-resolution crustal thickness maps derived from the Gravity Recovery And Interior Laboratory (GRAIL) and Lunar Orbiter Laser Altimeter (LOLA) data afford an unambiguous measure of the lateral extent of crustal thinning in lunar basins (protobasins, peak-ring and multi-ring basins). This region of crustal thinning can be used as a measure of basin size. In this work, we used the iSALE-2D numerical shock physics hydrocode to model the formation of lunar basins. We tested our simulations against crater structures observed by GRAIL. As a result, a new scaling law for impact basins on the Moon is derived. We show relationships between the transient crater size (including the impactor properties) as calculated by the hydrocode and the final crustal thinning diameter of an impact basin as well as an approximate relationship to the location of the basin rings, as mapped by LOLA and GRAIL. These scaling laws include lateral variations in the target properties, namely between the Procellarum KREEP Terrane on the nearside and the lunar highlands on the farside hemisphere. This work provides additional constraints on the extent of the Late Heavy Bombardment epoch. JF - American Geophysical Union Fall Meeting AU - Miljkovic, Katarina AU - Wieczorek, Mark A AU - Collins, G S AU - Neumann, Gregory A AU - Soderblom, J M AU - Johnson, B C AU - Minton, D A AU - Smith, David E AU - Zuber, M T AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract G33A EP - 0431 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1734269808?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Impact+scaling+for+lunar+impact+basins%3B+contributions+from+GRAIL+and+hydrocode+modeling&rft.au=Miljkovic%2C+Katarina%3BWieczorek%2C+Mark+A%3BCollins%2C+G+S%3BNeumann%2C+Gregory+A%3BSoderblom%2C+J+M%3BJohnson%2C+B+C%3BMinton%2C+D+A%3BSmith%2C+David+E%3BZuber%2C+M+T%3BAnonymous&rft.aulast=Miljkovic&rft.aufirst=Katarina&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-11-19 N1 - CODEN - #07548 ER - TY - JOUR T1 - Monitoring surface moisture of crater-fill sediment in extreme hydroclimatic conditions (Ubehebe volcanic field, Death Valley, California) AN - 1734269660; 2015-111827 AB - The long term monitoring of soil surface moisture is key for constraining surface hydrology processes in extreme weather and climatic settings and their impact on biological and geological components of desert environments. We tested and applied the use of miniature data loggers to acquire novel Temperature (T) and water content (weight percent, wt%) of fine-grained sediments deposited during rain events at Ubehebe Crater (UC), the larger and deeper crater within a volcanic field in Death Valley. The Miniaturized in situ systems are compliant with Death Valley National Park's regulations to conduct scientific research in wilderness and sacred sites. About 130,000 hours of recorded soil moisture and temperature were acquired in relation to the hydroclimatic conditions (2009-current). Total annual rainfall in the area range from approximately 50mm to <250 mm/y in water years (WY) 2004-to date. These values are representative of the climatic context of the Mojave Region as they encompass the wettest (2005, 2011) and driest years (2002, 2007, 2012, 2013, 2014) of the last approximately 120 years (Western Regional Climate Center, www.wrcc.dri.edu). To date, surface (0.5 cm to 2 cm-depth) moisture of intra-crater deposits can vary from dry-very dry (1-3wt % to -10 wt%) to wet-saturated (10-60 wt%). Over saturated conditions occur in ephemeral ponds, which appear to form once a year as a result of winter and summer rainstorms, and may last for one-two weeks (2009-2014 study years). Summer storms can yield ca. 40% to 60% of the total annual precipitation (WY 2011 thru 2014). The intensity and temporal distribution of annual storms together with ground temperature extremes (-16 to +67 degrees C) influence moisture distribution and retention within the crater's floor. JF - American Geophysical Union Fall Meeting AU - Bonaccorsi, R AU - Zent, A AU - McKay, C P AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract EP53A EP - 3632 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 06A:Sedimentary petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1734269660?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Monitoring+surface+moisture+of+crater-fill+sediment+in+extreme+hydroclimatic+conditions+%28Ubehebe+volcanic+field%2C+Death+Valley%2C+California%29&rft.au=Bonaccorsi%2C+R%3BZent%2C+A%3BMcKay%2C+C+P%3BAnonymous&rft.aulast=Bonaccorsi&rft.aufirst=R&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-11-19 N1 - CODEN - #07548 ER - TY - JOUR T1 - Southern Greenland water vapour isotopic composition at the crossroads of Atlantic and Arctic moisture AN - 1734269523; 2015-112106 AB - Since September 2011, a continuous water vapour isotopic composition monitoring instrument has been remotely operated in Ivittuut (61.21 degrees N, 48.17 degrees W), southern Greenland. Meteorological parameters are monitored and precipitation has been sampled and analysed for isotopic composition, suggesting equilibrium between surface vapour and precipitation. The data depict small summer diurnal variations. delta 18O and deuterium excess (d-excess) are generally anti-correlated and show important seasonal variations (with respective amplitudes of 10 and 20 ppm), and large synoptic variations associated to low-pressure systems (typically +5 ppm on delta 18O and -15 ppm on d-excess). The moisture sources, estimated based on Lagrangian back-trajectories, are primarily influenced by the western North Atlantic, and north-eastern American continent. Notable are important seasonal and synoptic shifts of the moisture sources, and sporadic influences of the Arctic or the eastern North Atlantic. Moisture sources variations can be related to changes in water vapour isotopic composition, and the isotopic fingerprints can be attributed to the areas of moisture origins. Isotopic enabled AGCMs nudged to meteorology (LMDZiso, ECHAM5-wiso), despite biases, correctly capture the delta 18O changes, but underestimate the d-excess changes. They allow to identify a high correlation between the southern Greenland d-excess and the simulated relative humidity and d-excess in the moisture source region south of Greenland. An extreme high temperature event in July 2012 affecting all Greenland, similar to ice sheet melt events during the medieval periods and one event in 1889 documented by Greenland ice core records, has been analysed regarding water vapour isotopic composition, using remote sensing (IASI) and in situ observations from Bermuda to northern Greenland (NEEM station). Our southern Greenland observations allow to track the water vapour evolution during this event along the moisture transport path, depicting the northward propagation of an isotopic signal inherited from the meteorological conditions during evaporation. Overall, our observations provide valuable information for interpreting Greenland ice core records as well as for evaluating water vapour isotopic simulations in atmospheric models. JF - American Geophysical Union Fall Meeting AU - Bonne, Jean-Louis AU - Steen-Larsen, Hans C AU - Risi, C M AU - Werner, Martin AU - Sodemann, Harald AU - Lacour, J L AU - Fettweis, Xavier AU - Cesana, Gregory AU - Delmotte, Marc AU - Cattani, O AU - Clerbaux, Cathy AU - Sveinbjornsdottir, Arny E AU - Masson-Delmotte, Valerie AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract PP31D EP - 1185 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1734269523?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Southern+Greenland+water+vapour+isotopic+composition+at+the+crossroads+of+Atlantic+and+Arctic+moisture&rft.au=Bonne%2C+Jean-Louis%3BSteen-Larsen%2C+Hans+C%3BRisi%2C+C+M%3BWerner%2C+Martin%3BSodemann%2C+Harald%3BLacour%2C+J+L%3BFettweis%2C+Xavier%3BCesana%2C+Gregory%3BDelmotte%2C+Marc%3BCattani%2C+O%3BClerbaux%2C+Cathy%3BSveinbjornsdottir%2C+Arny+E%3BMasson-Delmotte%2C+Valerie%3BAnonymous&rft.aulast=Bonne&rft.aufirst=Jean-Louis&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-11-19 N1 - CODEN - #07548 ER - TY - JOUR T1 - Shortening rates in the Nepalese Himalaya derived from quantitative geomorphic analysis AN - 1734269387; 2015-111787 AB - The rates and distribution of active shortening throughout the Himalayan foreland have been the subject of intense study for the past several decades. Despite substantial progress, the distribution of slip on specific faults remains poorly understood. Numerous studies suggest that fluvial systems developed above growing folds exhibit strong correlations with uplift rate. Here, we build on these studies to develop a quantitative, empirical calibration of the scaling between channel steepness index (ksn - a measure of channel gradient normalized for drainage area) and uplift rate; we derive a geometric model of uplift rate using data of Lave and Avouac (2000) and analyze channel profiles using a 30m DEM derived from SRTM data. Our analysis confirms a linear relationship between uplift rate and ksn; we apply this calibration to regions of similar lithology along the Baisahi anticline in western Nepal. Here, channel profiles exhibit smooth profiles with similar concavity, consistent with spatially uniform uplift rates above a planar ramp in the Main Frontal Thrust fault (Mugnier et al., 1999). Channel steepness indices along the western anticline are invariant with position along the anticline, suggesting a uniform uplift rate of 9 mm/yr + or - 2 mm/yr. Along the eastern portion of the anticline, steepness indices increase systematically from west to east, suggesting that uplift rates increase toward the east. However, structural data suggest that this reflects an increase in the dip of the fault at depth (Husson and Mugnier, 2003). Our analysis suggests that the Baisahi anticline absorbs 17.5 mm/yr + or - 4 mm/yr of active shortening. Our results demonstrate how local calibration of channel profile adjustment to uplift rate can be used to place constraints on active deformation in regions where other geomorphic markers are sparse or absent. JF - American Geophysical Union Fall Meeting AU - Meghani, N A AU - Kirby, E AU - Farr, T G AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract EP53A EP - 3592 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 23:Geomorphology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1734269387?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Shortening+rates+in+the+Nepalese+Himalaya+derived+from+quantitative+geomorphic+analysis&rft.au=Meghani%2C+N+A%3BKirby%2C+E%3BFarr%2C+T+G%3BAnonymous&rft.aulast=Meghani&rft.aufirst=N&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-11-19 N1 - CODEN - #07548 ER - TY - JOUR T1 - Toward automated feature detection in UAVSAR images AN - 1734268155; 2015-108888 AB - Edge detection identifies seismic or aseismic fault motion, as demonstrated in repeat-pass inteferograms obtained by the Uninhabited Aerial Vehicle Synthetic Aperture Radar (UAVSAR) program. But this identification is not robust at present: it requires a flattened background image, interpolation into missing data (holes) and outliers, and background noise that is either sufficiently small or roughly white Gaussian. Identification and mitigation of nongaussian background image noise is essential to creating a robust, automated system to search for such features. Clearly a robust method is needed for machine scanning of the thousands of UAVSAR repeat-pass interferograms for evidence of fault slip, landslides, and other local features.Empirical examination of detrended noise based on 20 km east-west profiles through desert terrain with little tectonic deformation for a suite of flight interferograms shows nongaussian characteristics. Statistical measurement of curvature with varying length scale (Allan variance) shows nearly white behavior (Allan variance slope with spatial distance from roughly -1.76 to -2) from 25 to 400 meters, deviations from -2 suggesting short-range differences (such as used in detecting edges) are often freer of noise than longer-range differences. At distances longer than 400 m the Allan variance flattens out without consistency from one interferogram to another. We attribute this additional noise afflicting difference estimates at longer distances to atmospheric water vapor and uncompensated aircraft motion. Paradoxically, California interferograms made with increasing time intervals before and after the El Mayor Cucapah earthquake (2008, M7.2, Mexico) show visually stronger and more interesting edges, but edge detection methods developed for the first year do not produce reliable results over the first two years, because longer time spans suffer reduced coherence in the interferogram. The changes over time are reflecting fault slip and block motion, indicating the continuing slip along minor faults in the post seismic phase of the main rupture. We show current results using computer vision methods that respect the noise and coherence characteristics. JF - American Geophysical Union Fall Meeting AU - Parker, Jay W AU - Donnellan, Andrea AU - Glasscoe, Margaret T AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract NG23A EP - 3798 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1734268155?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Toward+automated+feature+detection+in+UAVSAR+images&rft.au=Parker%2C+Jay+W%3BDonnellan%2C+Andrea%3BGlasscoe%2C+Margaret+T%3BAnonymous&rft.aulast=Parker&rft.aufirst=Jay&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-11-19 N1 - CODEN - #07548 ER - TY - JOUR T1 - CubeSat for natural-hazard estimation with ionospheric sciences (CNEWS); a concept development to aid tsunami early warning systems AN - 1734268043; 2015-108932 AB - The Jet Propulsion Laboratory, the University New Brunswick (Canada) and the University of Hawaii have developed a concept to provide open ocean tsunami wave height estimates using very accurate measurements of absolute total electron content (TEC) perturbations. Ionosphere-derived tsunami wave height estimates from our CubeSat for Natural-Hazard Estimation With Ionospheric Sciences (CNEWS) mission will refine the tsunami source energy calculation and improve the tsunami scale calculation for a localized region. As a secondary science objective, transmitting impulsive HF/VHF (10-40 MHz) transmissions through the ionosphere will provide in-situ geomagnetic disturbance measurements, which allow for discrimination between tsunami-induced signatures and space-weather-related fluctuations. NASA has invested several millions of dollars in the development of a tsunami warning system based on geodetic measurements from ground-based GPS stations. Leveraging this investment by simultaneously using ionospheric measurement from this GPS network for the detection of tsunamis represents a significant step forward. GPS ionospheric imaging is limited, however, by the slowly changing satellite geometry and its weak absolute TEC resolution (about 3 TECU). It has also been shown that GPS ionospheric imaging alone cannot distinguish between space weather fluctuations and those due to natural hazards. The very precise ionospheric measurements generated by CNEWS are expected to provide a quasi-static image of tsunami ionospheric signatures that we will use in an advanced model inversion technique to estimate tsunami wave heights at 10 cm (one sigma) uncertainty. The geomagnetic field strength resolution is also a key constraint for discriminating between natural hazards and space weather effects. HF/VHF impulses can resolve absolute TEC measurements at the 0.02 TECU level and geomagnetic field strength may be measured at 50 nT resolution. JF - American Geophysical Union Fall Meeting AU - Komjathy, Attila AU - Romero-Wolf, Andrew AU - Yang, Y M AU - Langley, R B AU - Foster, J H AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract NH31C EP - 3868 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1734268043?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=CubeSat+for+natural-hazard+estimation+with+ionospheric+sciences+%28CNEWS%29%3B+a+concept+development+to+aid+tsunami+early+warning+systems&rft.au=Komjathy%2C+Attila%3BRomero-Wolf%2C+Andrew%3BYang%2C+Y+M%3BLangley%2C+R+B%3BFoster%2C+J+H%3BAnonymous&rft.aulast=Komjathy&rft.aufirst=Attila&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-11-19 N1 - CODEN - #07548 ER - TY - JOUR T1 - Exploration of the Moon and asteroids by secondary students (ExMASS); an authentic, open-inquiry research experience for high school students AN - 1734267533; 2015-108633 AB - The National Research Council (2012) has expressed a need for participatory science experiences for students. Opportunities are needed for students which 1) allow them to understand how scientific knowledge develops and 2) can heighten their curiosity, capture their interest, and motivate their continued study of science. Studies (e.g., Aydeniz et al., 2011) have also recommend educators provide students with opportunities to do science through extracurricular work with scientists. In addition to being given the opportunity to fully participate in the scientific enterprise, students must also be explicitly guided in their attempts to develop a more appropriate understanding of the nature of the scientific enterprise (McDonald, 2010; Rudge & Howe, 2010; Yacoubian & BouJaoude, 2010). Exploration of the Moon and Asteroids by Secondary Students, or ExMASS, provides such an opportunity for students. The ExMASS program is an education effort managed by the LPI/NASA JSC-led Center for Lunar Science and Exploration (CLSE), one of nine teams comprising NASA's Solar System Exploration Research Virtual Institute (SSERVI). Over the course of one academic year, teams of high school students conduct their own scientific investigations of either Earth's Moon or asteroids, with guidance from a scientist mentor. The program includes two elements: 1) a guided inquiry introductory research activity that builds student knowledge of current lunar/asteroid science and lunar/asteroid data, and 2) an open inquiry research project in which the students apply their knowledge to a self-defined project. Evaluation data collected during the predecessor program to ExMASS revealed many successes, but also room for improvement. In response, an Advisory Group consisting of past teachers and mentors was formed to address the gaps revealed in the evaluation data. The ExMASS program will continue to collect similar evaluation data including assessment of changes in students' lunar/asteroid content knowledge, student attitudes toward science and science careers, and views of the nature of science and scientific inquiry. Exit surveys for teachers, students, and mentors will also be used to gather general feedback about the program and its impact. JF - American Geophysical Union Fall Meeting AU - Shaner, A J AU - Allen, J S AU - Shipp, S S AU - Kramer, G Y AU - Nahm, A AU - Balazs, L AU - Fuller, J AU - Newland, J AU - Snyder, R D AU - Kring, D A AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract ED21B EP - 3446 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1734267533?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Exploration+of+the+Moon+and+asteroids+by+secondary+students+%28ExMASS%29%3B+an+authentic%2C+open-inquiry+research+experience+for+high+school+students&rft.au=Shaner%2C+A+J%3BAllen%2C+J+S%3BShipp%2C+S+S%3BKramer%2C+G+Y%3BNahm%2C+A%3BBalazs%2C+L%3BFuller%2C+J%3BNewland%2C+J%3BSnyder%2C+R+D%3BKring%2C+D+A%3BAnonymous&rft.aulast=Shaner&rft.aufirst=A&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-11-19 N1 - CODEN - #07548 ER - TY - JOUR T1 - GRAIL refinements to lunar seismic structure AN - 1734266419; 2015-108716 AB - Gravity field measurements are perhaps the most numerous of the indirect observations relevant to the Moon's internal structure. Multiple recent missions have mapped the global lunar gravity field, each one improving upon the resolution of the last. The details of the Moon's deepest structure, including the parameters that define the lunar core, however, were still largely unaddressed by pre-GRAIL gravity measurements, which were not high enough resolution to resolve the tidal coefficients at a sufficient degree of accuracy. Current constraints on core size and state arise from other indirect measurements, including lunar laser ranging, magnetic induction studies, and analyses of elemental abundances in depth-derived mare basalts. These inferences vary widely, but when considered together with structure models derived from the seismic data gathered during the Apollo missions, a schematic of the lunar interior containing a partially molten deepest mantle layer overlying molten outer and solid inner core layers was obtained. Seismology provides the most direct constraints on the variables that govern the dynamic properties of the body. However, the GRAIL mission's high-resolution measurements of the lunar gravity field are being used to constrain the interior structure of the Moon using a "crust to core" approach. GRAIL's constraints on crustal thickness, mantle structure, core radius and stratification, and core state (solid vs. molten) therefore complement seismic investigations. This work focuses on expanding our knowledge of the Moon's internal structure using joint gravity and seismic analyses, which will improve constraints on the deep lunar mantle and core. JF - American Geophysical Union Fall Meeting AU - Weber, Renee C AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract G33A EP - 0428 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1734266419?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=GRAIL+refinements+to+lunar+seismic+structure&rft.au=Weber%2C+Renee+C%3BAnonymous&rft.aulast=Weber&rft.aufirst=Renee&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-11-19 N1 - CODEN - #07548 ER - TY - JOUR T1 - Broad-scale gravity changes following the 2011 Tohoku-Oki thrust and 2012 Indian Ocean strike-slip earthquakes and implications for coseismic dilatation and viscoelastic relaxation AN - 1734266294; 2015-108850 AB - We analyzed spatially- and temporally-continuous GRACE gravity observations by decomposing the gravity field changes into five independent moment tensor elements to understand the regional surface and interior deformation in response to post-earthquake stress/strain redistribution. For the 2011 Tohoku-Oki thrust earthquake, the GRACE data revealed postseismic gravity increase by 6 microGal over a 500-km scale within a couple of years, which is nearly 40-50 % of the coseismic gravity change. It originates mostly from changes in the isotropic component corresponding to the Mrr moment tensor element. For the 2012 Indian Ocean strike-slip earthquakes, the postseismic gravity change was similar to the coseismic change (including the Mw 8.6 and Mw 8.2 ruptures) with the magnitude smaller by approximately 80 % in two years. The gravity change corresponding to the Mtp moment tensor element is dominant (and also Mtt-Mpp to a lesser extent). In both earthquakes, the exponential decay with rapid change within a year and gradual change afterwards is a characteristic temporal pattern. We also compared the two earthquakes in terms of their respective seafloor vertical and interior deformation (Bouguer gravity). The processes responsible for the coseismic and postseismic gravity changes at a such spatial scale are, respectively, the density change (dilatation) and the viscoelastic deformation without much perturbation in density. The postseismic gravity variation is best modeled by bi-viscous relaxation with a transient and steady-state viscosity of 10 (super 18) and 10 (super 19) Pa s, respectively, for the asthenosphere. Furthermore, we found viscoelastic relaxation triggered by the partially-ruptured elastic lithosphere is a main driver of the local subsidence above the rupture region reported from the GPS-acoustic seafloor surveying after the 2011 Tohoku-Oki earthquake. JF - American Geophysical Union Fall Meeting AU - Han, S C AU - Sauber, J M AU - Pollitz, F F AU - Riva, R AU - Okal, E A AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract G51C EP - 04 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1734266294?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Broad-scale+gravity+changes+following+the+2011+Tohoku-Oki+thrust+and+2012+Indian+Ocean+strike-slip+earthquakes+and+implications+for+coseismic+dilatation+and+viscoelastic+relaxation&rft.au=Han%2C+S+C%3BSauber%2C+J+M%3BPollitz%2C+F+F%3BRiva%2C+R%3BOkal%2C+E+A%3BAnonymous&rft.aulast=Han&rft.aufirst=S&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-11-19 N1 - CODEN - #07548 ER - TY - JOUR T1 - Ionospheric signatures of North Korean nuclear test on 12 February 2013 AN - 1734264584; 2015-108945 AB - Previous studies on interactions between the atmospheric waves and ionospheric perturbations concluded that the acoustic-gravity waves triggered by solid earth events such as earthquakes, tsunamis and underground nuclear tests may be used in detecting the ionospheric perturbations. Ionospheric perturbations have been observed using sounding radars and GPS remote sensing techniques since 1970s. As primary examples, ionospheric disturbances associated with 2006 and 2009 North Korean underground nuclear tests were observed using GPS measurements. In this work, we processed GNSS stations in South Korea and Japan and analyzed traveling ionospheric disturbances that were coincident with the 2013 North Korean underground test. North Korea conducted the third underground nuclear test at 2:57 UTC on February 12, 2013. The magnitude of earthquake generated by this event was registered to be an Mw 5.1 event. After analyzing GPS measurements from nearby stations, strong ionospheric perturbations were observed 15-30 minutes after the reported event, and the disturbances were shown to have primarily two different wave trains. The maximum VTEC perturbations turned out to be between 0.4 to 0.7 TECU. Five stations located in the northwest-to-southeast direction were also scrutinized for the propagation direction and amplitude variation related to ionospheric wave structures. The results clearly showed that the maximum amplitude of the waves may be higher as the stations are closer to the epicenter indicating that the waveforms may propagate away from the epicenter. In this research, we will analyze the characteristics of the detected ionospheric perturbations associated with the underground nuclear test. These findings are expected to verify our modeling results. We hope to get a better understanding of the influence of man-made hazards on the temporal and spatial variability of the global ionosphere. JF - American Geophysical Union Fall Meeting AU - Yoon, M AU - Kim, D AU - Yang, Y M AU - Lee, Jiyun AU - Komjathy, Attila AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract NH31C EP - 3881 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1734264584?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Ionospheric+signatures+of+North+Korean+nuclear+test+on+12+February+2013&rft.au=Yoon%2C+M%3BKim%2C+D%3BYang%2C+Y+M%3BLee%2C+Jiyun%3BKomjathy%2C+Attila%3BAnonymous&rft.aulast=Yoon&rft.aufirst=M&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-11-19 N1 - CODEN - #07548 ER - TY - JOUR T1 - Single-pass airborne InSAR for wide-swath, high-resolution cryospheric surface topography mapping AN - 1734264343; 2015-108864 AB - In May 2009 a mm-wave single-pass interferometric synthetic aperture radar (InSAR) for the first time demonstrated ice surface topography swath-mapping in Greenland. This was achieved with the airborne Glacier and Ice Surface Topography Interferometer (GLISTIN-A). Ka-band (35.6GHz) was chosen for high-precision topographic mapping from a compact sensor with minimal surface penetration. In recent years, the system was comprehensively upgraded for improved performance, stability and calibration. In April 2013, after completing the upgrades, GLISTIN-A flew a brief campaign to Alaska. The primary purpose was to demonstrate the InSAR's ability to generate high-precision, high resolution maps of ice surface topography with swaths in excess of 10km. Comparison of GLISTIN-A's elevations over glacial ice with lidar verified the precision requirements and established elevation accuracies to within 2 m without tie points. Feature tracking of crevasses on Columbia Glacier using data acquired with a 3-day separation exhibit an impressive velocity mapping capability. Furthermore, GLISTIN-A flew over the Beaufort sea to determine if we could not only map sea ice, but also measure freeboard. Initial analysis has established we can measure sea-ice freeboard using height differences from the top of the sea-ice and the sea surface in open leads. In the future, a campaign with lidar is desired for a quantitative validation. Another proof-of-concept collection mapped snow-basins for hydrology. Snow depth measurements using summer and winter collections in the Sierras were compared with lidar measurements. Unsurprisingly when present, trees complicate the interpretation, but additional filtering and processing is in work. For each application, knowledge of the interferometric penetration is important for scientific interpretation. We present analytical predictions and experimental data to upper bound the elevation bias of the InSAR measurements over snow and snow-covered ice. JF - American Geophysical Union Fall Meeting AU - Moller, D AU - Hensley, S AU - Wu, X AU - Muellerschoen, R AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract G53A EP - 01 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1734264343?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Single-pass+airborne+InSAR+for+wide-swath%2C+high-resolution+cryospheric+surface+topography+mapping&rft.au=Moller%2C+D%3BHensley%2C+S%3BWu%2C+X%3BMuellerschoen%2C+R%3BAnonymous&rft.aulast=Moller&rft.aufirst=D&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-11-19 N1 - CODEN - #07548 ER - TY - JOUR T1 - Constraining the composition of the subcontinental lithospheric mantle beneath the East African Rift; FTIR analysis of water in spinel peridotite mantle xenoliths AN - 1729849697; 2015-103928 AB - The East African Rift System was initiated by the impingement of the Afar mantle plume on the base of the non-cratonic continental lithosphere (assembled during the Pan-African Orogeny), producing over 300,000 km3 [1] of continental flood basalts approximately 30 Ma ago. The contribution of the subcontinental lithospheric mantle (SCLM) to this voluminous period of volcanism is implied based on basaltic geochemical and isotopic data. However, the role of percolating melts on the SCLM composition is less clear. Metasomatism is capable of hybridizing or overprinting the geochemical signature of the SCLM. In addition, models suggest that adding fluids to lithospheric mantle affects its stability [e.g. 2, 3]. We investigated the nature of the SCLM using Fourier transform infrared spectrometry (FTIR) to measure water content in mantle xenoliths entrained in young (1 Ma) basaltic lavas from the Ethiopian volcanic province. The mantle xenoliths consist dominantly of spinel lherzolites and are composed of nominally anhydrous minerals, which can contain trace water as H in mineral defects. Eleven mantle xenoliths come from the Injibara-Gojam region and two from the Mega-Sidamo region. Water abundances of olivines in six samples are 1-5ppm H2O while the rest are below the limit of detection (<0.5 ppm H2O); orthopyroxene and clinopyroxene contain 80-238 and 111-340 ppm wt H2O, respectively. Two xenoliths have higher water contents--a websterite (470 ppm) and dunite (229 ppm), consistent with involvement of ascending melts. The low water content of the upper SCLM beneath Ethiopia is as dry as the oceanic mantle [2] except for small domains represented by percolating melts. Consequently, rifting of the East African lithosphere may not have been facilitated by a hydrated upper mantle. [1] Hoffman et al., 1997 Nature 389, 838-841. [2] Peslier et al., 2010 Nature 467, 78-81. [3] Lee et al., 2011 AREPS 39, 59-90. JF - American Geophysical Union Fall Meeting AU - Erickson, Stephanie G AU - Nelson, W R AU - Peslier, A H AU - Snow, J E AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract DI21A EP - 4262 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1729849697?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Constraining+the+composition+of+the+subcontinental+lithospheric+mantle+beneath+the+East+African+Rift%3B+FTIR+analysis+of+water+in+spinel+peridotite+mantle+xenoliths&rft.au=Erickson%2C+Stephanie+G%3BNelson%2C+W+R%3BPeslier%2C+A+H%3BSnow%2C+J+E%3BAnonymous&rft.aulast=Erickson&rft.aufirst=Stephanie&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-11-05 N1 - CODEN - #07548 ER - TY - JOUR T1 - Water in the cratonic mantle; insights from FTIR data on Lac de Gras xenoliths (Slave Craton, Canada) AN - 1729848439; 2015-103927 AB - The mantle lithosphere beneath the cratonic part of continents is the deepest (> 200 km) and oldest (>2-3 Ga) on Earth, remaining a conundrum as to how these cratonic roots could have resisted delamination by asthenospheric convection over time. Water, or trace H incorporated in mineral defects, could be a key player in the evolution of continental lithosphere because it influences melting and rheology of the mantle [e.g., 1]. Mantle xenoliths from the Lac de Gras kimberlite in the Slave Craton [2] were analyzed by FTIR. The cratonic mantle beneath Lac de Gras is stratified with shallow (<145 km) oxidized ultradepleted peridotites and pyroxenites with evidence for carbonatitic metasomatism, underlain by reduced and less depleted peridotites metasomatized by kimberlite melts [3,4]. Peridotites analyzed so far have H2O contents in ppm weight of 7-100 in their olivines, 58 to 255 in their orthopyroxenes (opx), 11 to 84 in their garnet, and 139 in one clinopyroxene. A pyroxenite contains 58 ppm H2O in opx and 5 ppm H2O in its olivine and garnet. Olivine and garnet from the deep peridotites have a range of water contents extending to higher values than those from the shallow ones. The FTIR spectra of olivines from the shallow samples have more prominent Group II OH bands compared to the olivines from the deep samples, consistent with a more oxidized mantle environment [5]. The range of olivine water content is similar to that observed in Kaapvaal Craton peridotites at the same depths (129-184 km [1]) but does not extend to as high values as those from Udachnaya (Siberian Craton [6]). The Slave, Kaapvaal and Siberian Cratons will be compared in terms of water content distribution, controls and role in cratonic root longevity. [1] Peslier et al. 2010 Nature 467, 78-81. [2] Aulbach et al. 2007 CMP 154, 409-427. [3] Creighton et al. 2009 CMP 157, 491-504. [4] Aulbach et al. 2013 CG 352, 153-169. [5] Bai & Kohlstedt 1993 PCM 19, 460-471. [6] Doucet et al. 2014 GCA 137, 159-187. JF - American Geophysical Union Fall Meeting AU - Peslier, A H AU - Brandon, A D AU - Schaffer, L A AU - O'Reilly, S Y AU - Griffin, W L AU - Morris, R V AU - Graff, T G AU - Agresti, D G AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract DI21A EP - 4261 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1729848439?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Water+in+the+cratonic+mantle%3B+insights+from+FTIR+data+on+Lac+de+Gras+xenoliths+%28Slave+Craton%2C+Canada%29&rft.au=Peslier%2C+A+H%3BBrandon%2C+A+D%3BSchaffer%2C+L+A%3BO%27Reilly%2C+S+Y%3BGriffin%2C+W+L%3BMorris%2C+R+V%3BGraff%2C+T+G%3BAgresti%2C+D+G%3BAnonymous&rft.aulast=Peslier&rft.aufirst=A&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-11-05 N1 - CODEN - #07548 ER - TY - JOUR T1 - Water content in the SW USA mantle lithosphere; FTIR analysis of Dish Hill and Kilbourne Hole pyroxenites AN - 1729848358; 2015-103926 AB - Kilbourne Hole (NM, USA) and Dish Hill (CA, USA) mantle xenoliths sample continental mantle in two different tectonic settings. Kilbourne Hole (KH) is located in the Rio Grande Rift. Dish Hill (DH) is located in the southern Mojave Province, an area potentially affected by subduction of the Farallon Plate beneath North America [1]. FTIR analyses were obtained on well characterized pyroxenite, dunite and wehrlite xenoliths, thought to represent crystallized melts at mantle depths. PUM normalized REE patterns of the KH bulk-rocks are slightly LREE enriched and consistent with those of liquids generated by 6% melting of a spinel peridotite source. Pyroxenite pyroxenes have no detectable water but one DH wehrlite, which bulk-rock is LREE enriched, has 4 ppm H2O in orthopyroxene and 2 Ga [5]. The Farallon subduction appears to have enriched in water the Southwestern United States lithospheric mantle further east than DH, beneath the Colorado plateau [6]. [1] Atwater, 1970 Tectonophysics 31, 145-165. [2] Shaw, 2000 CM 38, 1041-1064. [3] Schaffer et al., 2013 AGU Fall Meeting. [4] Luffi et al, 2009 JGR 114, 1-36. [5] Armytage et al., 2013 GCA 137, 113-133. [6] Li et al., 2008 JGR 113, 1-22. JF - American Geophysical Union Fall Meeting AU - Gibler, R AU - Peslier, A H AU - Schaffer, L A AU - Brandon, A D AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract DI21A EP - 4260 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1729848358?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Water+content+in+the+SW+USA+mantle+lithosphere%3B+FTIR+analysis+of+Dish+Hill+and+Kilbourne+Hole+pyroxenites&rft.au=Gibler%2C+R%3BPeslier%2C+A+H%3BSchaffer%2C+L+A%3BBrandon%2C+A+D%3BAnonymous&rft.aulast=Gibler&rft.aufirst=R&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-11-05 N1 - CODEN - #07548 ER - TY - JOUR T1 - Astronomy and geology vocabulary, i.e. "NASA words" in Native American languages AN - 1729848212; 2015-103963 AB - The US Rosetta Project has developed a program in Native American communities in which contemporary STEM vocabulary is taught alongside the same vocabulary in Navajo. NASA images and science are used and described in the native language, alongside both lay English, and scientific English. Additionally, science curriculum (geology/chemistry/botany/physics) elements drawn from the reservation environment, including geomorphology, geochemistry, soil physics, are included and discussed in the native language as much as possible - with their analogs in other planetary environments (such as Mars). The program began with a student defining 30 Navajo words to describe what he called 'NASA' words, such as: cell phone, astronaut, space suit, computer, and planets not visible to the naked eye. The use of NASA material and imagery have a positive impact on the accessibility of the overall STEM material but community involvement, and buy-in, is critical to the success of the program. The US Rosetta Project modified its goals, and curriculum, to accommodate the programmatic desires of teachers in the district, and the capabilities of the medicine men that agreed to participate. In this presentation we will report on lessons learned, as well as metrics and successes associated with our most recent Summer Science Academy [2014]. JF - American Geophysical Union Fall Meeting AU - Angrum, A AU - Alexander, C J AU - Martin, M AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract ED51A EP - 3415 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 15:Miscellaneous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1729848212?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Astronomy+and+geology+vocabulary%2C+i.e.+%22NASA+words%22+in+Native+American+languages&rft.au=Angrum%2C+A%3BAlexander%2C+C+J%3BMartin%2C+M%3BAnonymous&rft.aulast=Angrum&rft.aufirst=A&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-11-05 N1 - CODEN - #07548 ER - TY - JOUR T1 - What can we learn from the paleo-records about future Arctic climate change? AN - 1729845896; 2015-101373 AB - The Coupled Model Intercomparison Project, Phase 5 (CMIP5), include historical simulations from the 20th century, future climate simulations following different Representative Concentration Pathways (RCPs) for the 21st century and beyond, and, for the first time in CMIP, three sets of paleo-climate simulations of the recent past for which more paleo-proxi-data exist. We use simulations of the Mid-Holocene (MH) climate (6K BP) from General Circulation Models participating in CMIP5 to constrain future projections of Arctic climate change by the same models. During the Mid-Holocene, the Arctic received approximately 50 W/m2 more solar radiation at the top of the atmosphere during summer, a similar increase to what is projected from greenhouse gas forcing for the middle of the 21st century. The constraint in our analysis arise from a measure of the ability of GCMs to hindcast MH climate using a suite of both land paleo-records--which are much more abundant for high latitudes than ocean proxy--and ocean paleo-record. Results show that GCMs with skill at simulating the MH climate and today's climate give more realistic future projections of the sea ice decline in forced climate simulations of the 21st century participating in the IPCC-AR5. JF - American Geophysical Union Fall Meeting AU - Tremblay, Bruno AU - Huard, D B AU - Schmidt, G A AU - de Vernal, Anne AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract PP21G EP - 01 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1729845896?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=What+can+we+learn+from+the+paleo-records+about+future+Arctic+climate+change%3F&rft.au=Tremblay%2C+Bruno%3BHuard%2C+D+B%3BSchmidt%2C+G+A%3Bde+Vernal%2C+Anne%3BAnonymous&rft.aulast=Tremblay&rft.aufirst=Bruno&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-11-05 N1 - CODEN - #07548 ER - TY - JOUR T1 - Influence of interhemispheric asymmetry in volcanic forcing on ITCZ location and oxygen isotope distribution AN - 1729844866; 2015-101384 AB - Volcanic eruptions are a dominant source of natural forced variability during the Common Era. Although transient, eruptions strongly cool the planet through the liberation of sulfur gases that enter the stratosphere (converting to sulfate aerosol) and scatter sunlight. In particular, such events source the largest amplitude radiative forcings that perturb the terrestrial climate during the Last Millennium. Previous studies have highlighted the global climate impact of large volcanic events, including the role of latitude and time-of-year of a given eruption. Here, we focus on the influence of hemispheric asymmetry in Aerosol Optical Depth (AOD) and its projection onto the tropical hydrologic cycle. This is assessed using a suite of simulations from a fully coupled isotope-enabled General Circulation Model (NASA GISS ModelE2-R) run from 850-2005 CE. This study builds upon prior work that demonstrate the role of inter-hemispheric forcing gradients on Intertropical Convergence Zone (ITCZ) location. In addition to unveiling the physical mechanisms that alter tropical hydroclimate, we highlight the anticipated tropical oxygen isotope distribution following large eruptions. Thus, through the vehicle of an isotope-enabled model, we formulate a potentially falsifiable prediction for how volcanic forcing may manifest itself in high-resolution proxies across the tropics. JF - American Geophysical Union Fall Meeting AU - Colose, C AU - LeGrande, A N AU - Vuille, M F AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract PP22A EP - 04 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1729844866?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Influence+of+interhemispheric+asymmetry+in+volcanic+forcing+on+ITCZ+location+and+oxygen+isotope+distribution&rft.au=Colose%2C+C%3BLeGrande%2C+A+N%3BVuille%2C+M+F%3BAnonymous&rft.aulast=Colose&rft.aufirst=C&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-11-05 N1 - CODEN - #07548 ER - TY - JOUR T1 - Upper limits on geomagnetic field model errors using geomagnetic data assimilation AN - 1729844573; 2015-101242 AB - Recent advances in geomagnetic data assimilation have led to improvements in forecasting of the geomagnetic field. Validation of the data assimilation system (DAS) has been done for historical data from the past 400 years by comparing differences between observations and forecasts (O-F) at the CMB. However, this approach is limited by the lack of knowledge about the accuracy of the observations, which come from geomagnetic field models (GFM). But we can also use geomagnetic data assimilation to estimate upper limits on GFM uncertainty by making some simplifying assumptions. We show that large forecast biases, which degrade the optimality of the assimilation, can be easily removed. This leaves just the much smaller random component of the forecast uncertainty and the remaining (O-F) from which it is much easier to the extract a maximum value for the observation uncertainty. JF - American Geophysical Union Fall Meeting AU - Tangborn, A AU - Kuang, W AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract DI31B EP - 4282 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1729844573?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Upper+limits+on+geomagnetic+field+model+errors+using+geomagnetic+data+assimilation&rft.au=Tangborn%2C+A%3BKuang%2C+W%3BAnonymous&rft.aulast=Tangborn&rft.aufirst=A&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-11-05 N1 - CODEN - #07548 ER - TY - JOUR T1 - Model-data comparisons of pan-continental drought over North America during the Common Era AN - 1729844442; 2015-101361 AB - Pan-continental droughts, or droughts that simultaneously affect a large percentage of the geographically and climatically distinct regions of North America, present significant on-the-ground management challenges and, as such, are an important target for scientific research. There are, however, two fundamental reasons why a comprehensive characterization of pan-continental droughts, and their causes, proves challenging: 1) Regional hydroclimate in North America is characterized by distinct atmosphere-ocean dynamics; 2) The relative rarity of pan-continental drought and the short ( approximately 150 year) observational record mean that there are few events by which to diagnose how these relatively distinct regional hydroclimate dynamics can combine to produce pan-continental drought. The paradigm of model-data comparisons on paleoclimatic timescales is used herein to extend the North American drought record and to simulate potential atmosphere-ocean states during pan-continental droughts, which together provide a more comprehensive understanding of pan-continental drought dynamics. Specifically, six forced transient simulations of the last millennium from the CMIP5/PMIP3 archives are analyzed in conjunction with gridded tree-ring reconstructions of hydroclimate variability from the North American Drought Atlas (NADA). Models are found to simulate pan-continental drought with the frequency and spatial patterns exhibited by the NADA. They do not, however, agree on the modes of atmosphere-ocean variability that produce pan-continental droughts. This is because simulated ENSO, PDO and AMO dynamics, and their teleconnections to North America, are different between models and observations. Despite these dynamical differences, models are also able to reproduce large-magnitude centennial-scale variability in the frequency of pan-continental drought occurrence-an important feature of the paleoclimate record. These changes do not appear to be tied to exogenous forcings, suggesting that simulated internal hydroclimate variability on these timescales is large in magnitude. Results both clarify understanding of the dynamics that produce real-world pan-continental droughts, while assessing the ability of models to accurately characterize future drought risks. JF - American Geophysical Union Fall Meeting AU - Coats, S AU - Smerdon, J E AU - Seager, R AU - Cook, B AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract PP21E EP - 07 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1729844442?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Model-data+comparisons+of+pan-continental+drought+over+North+America+during+the+Common+Era&rft.au=Coats%2C+S%3BSmerdon%2C+J+E%3BSeager%2C+R%3BCook%2C+B%3BAnonymous&rft.aulast=Coats&rft.aufirst=S&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-11-05 N1 - CODEN - #07548 ER - TY - JOUR T1 - Assimilation of the observed SV with geodynamo modeling and sensitivities of the core flow beneath the CMB AN - 1729844400; 2015-101241 AB - One challenge in geomagnetic data assimilation is that the observational records are relatively short: they are approximately 6 times to the typical time scales of non-dipole geomagnetic field, and approximately 10 times to that of the dipole field. However, surface geomagnetic observations are made at time scales at least three orders of magnitude shorter than those of the geomagnetic secular variation. Therefore, the field and its secular variation (SV), i.e. the rate of changes in time, are "concurrently" measured, allowing us to assimilate both pieces of information into geodynamo modeling. This can be achieved via construction of a new observation operator for the velocity field beneath the CMB, and modification of the existing observation operator for the magnetic field. Determination of the observation operator for the velocity field is very complex, as the constraints from the observed SV are two orders of magnitude less than the velocity field state variables in dynamo simulation. Therefore, it depends on appropriate understanding of the responses of the core flow to the observed SV. For this purpose, we carried out several assimilation experiments with and without assimilation of SV. In particular, the observed SV is only utilized for correcting the model forecasts in the magnetic field, leaving the velocity field forecast unconstrained. Our experiment shows that, the large-scale axisymmetric toroidal velocity responds the strongest to the observed SV, following by a suite of small-scale velocity components (with the span from spherical harmonic degree 10 to 20). The non-axisymmetric part of the poloidal flow is also very sensitive to the SV constraints. However, such responses are more evenly spread out from large to small-scale flow patterns. These assimilation results will be used for construction of the velocity field observational operator, and can be also applied to core-flow inversion studies in general. JF - American Geophysical Union Fall Meeting AU - Kuang, W AU - Tangborn, A AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract DI31B EP - 4281 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1729844400?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Assimilation+of+the+observed+SV+with+geodynamo+modeling+and+sensitivities+of+the+core+flow+beneath+the+CMB&rft.au=Kuang%2C+W%3BTangborn%2C+A%3BAnonymous&rft.aulast=Kuang&rft.aufirst=W&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-11-05 N1 - CODEN - #07548 ER - TY - JOUR T1 - NASA and Earth Science Week; a model for engaging scientists and engineers in education and outreach AN - 1722155621; 2015-100158 AB - Earth Science Week (ESW)--the 2nd full week in October--is a national and international event to help the public, particularly educators and students, gain a better understanding and appreciation for the Earth sciences. The American Geosciences Institute (AGI) organizes ESW, along with partners including NASA, using annual themes (e.g., the theme for 2014 is Earth's Connected Systems). ESW provides a unique opportunity for NASA scientists and engineers across multiple missions and projects to share NASA STEM, their personal stories and enthusiasm to engage and inspire the next generation of Earth explorers. Over the past five years, NASA's ESW campaign has been planned and implemented by a cross-mission/cross-project group, led by the NASA Earth Science Education and Pubic Outreach Forum, and utilizing a wide range of media and approaches (including both English- and Spanish-language events and content) to deliver NASA STEM to teachers and students. These included webcasts, social media (blogs, twitter chats, Google+ hangouts, Reddit Ask Me Anything), videos, printed and online resources, and local events and visits to classrooms. Dozens of NASA scientists, engineers, and communication and education specialists contribute and participate each year. This presentation will provide more information about this activity and offer suggestions and advice for others engaging scientists and engineers in education and outreach programs and events. JF - American Geophysical Union Fall Meeting AU - Schwerin, Theresa G AU - deCharon, Annette AU - Brown de Colstoun, Eric C AU - Chambers, Lin H AU - Woroner, Morgan AU - Taylor, Jessica E AU - Callery, Susan H AU - Jackson, R AU - Riebeek, Holli AU - Butcher, Ginger J AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract ED41B EP - 07 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 15:Miscellaneous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1722155621?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=NASA+and+Earth+Science+Week%3B+a+model+for+engaging+scientists+and+engineers+in+education+and+outreach&rft.au=Schwerin%2C+Theresa+G%3BdeCharon%2C+Annette%3BBrown+de+Colstoun%2C+Eric+C%3BChambers%2C+Lin+H%3BWoroner%2C+Morgan%3BTaylor%2C+Jessica+E%3BCallery%2C+Susan+H%3BJackson%2C+R%3BRiebeek%2C+Holli%3BButcher%2C+Ginger+J%3BAnonymous&rft.aulast=Schwerin&rft.aufirst=Theresa&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-10-15 N1 - CODEN - #07548 ER - TY - JOUR T1 - Requirements for energy-conserving two-way coupling of a GCM and ice model AN - 1722154963; 2015-097635 AB - Many questions still surround how ice sheets respond to climate forcing and how those changes will affect sea level, regional and global climate. Past studies with one-way coupling have yielded useful insight into the future of present-day ice sheets. More recently, studies have used two-way coupling that conserves mass but not energy, in order to better understand possible future equilibrium states of the ice sheets and climate system. Two-way coupling that preserves mass and energy is seen a prerequisite to effective modeling of ice sheet that probably play a significant role in many events in the paleo record: Dansgaard-Oeschger events, Heinrich events, the Younger Dryas. It may also be used to estimate errors inherent in two-way coupled strategies that do not conserve energy. The need for energy conservation puts constraints on the GCM, the ice model, and the design of the coupler. Details of these requirements are presented as they are being implemented in the coupling of GISS ModelE with the PISM and ISSM ice sheet models, via the Glint2 coupler. JF - American Geophysical Union Fall Meeting AU - Fischer, Robert AU - Nowicki, Sophie AU - Kelley, Maxwell AU - Schmidt, Gavin A AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract C51A EP - 0249 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1722154963?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Requirements+for+energy-conserving+two-way+coupling+of+a+GCM+and+ice+model&rft.au=Fischer%2C+Robert%3BNowicki%2C+Sophie%3BKelley%2C+Maxwell%3BSchmidt%2C+Gavin+A%3BAnonymous&rft.aulast=Fischer&rft.aufirst=Robert&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-10-15 N1 - CODEN - #07548 ER - TY - JOUR T1 - Ice-cover history and paleoceanographic change of the western Arctic Ocean (Mendeleev Ridge) using Be isotopes AN - 1722154386; 2015-097680 AB - A new investigation of paleoclimate and environmental changes using beryllium isotopes in sediment from the Mendeleev Ridge of the western Arctic Ocean was accomplished using a 39 cm-long box core record. The age of core PS72/396-3 appears to date back to MIS 5.d based on the stratigraphy of beryllium isotopes and paleomagnetic data and other isotopic data of this study, AMS 14C ages and oxygen and carbon isotopes of planktonic foraminifera N. pachyderma sin. Both authigenic 10Be and 9Be records show that there are three major cold periods during MIS 5.d and reveals a much longer warm period after the second cold period based on 9Be record. The 10Be stratigraphy also reveals a paleomagnetic excursion at 45 kyr which is comparable to other records. At depths from 22 to 25 cm, the lowest 10Be signal may be due to the highest paleomagnetic intensity, which is indicated as an age of 75 kyr from other records. However, a reduction in cosmogenic 10Be could be due to ice cover, and is correlated with delta 18O evidence of a cold period. Interestingly, 9Be data show that constant input of 9Be to the Mendeleev Ridge is observed for this time period. During this time period, TOC (%) values also show a similar pattern. The record of authigenic 9Be is inversely correlated to that of Ca and proportional to opal production. These observations confirm that 9Be can also be a good proxy as a climatic tracer. This study may be a useful approach for understanding Arctic climate change. JF - American Geophysical Union Fall Meeting AU - Kim, K J AU - Jull, A J T AU - Nam, S I AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract C53A EP - 0298 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1722154386?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Ice-cover+history+and+paleoceanographic+change+of+the+western+Arctic+Ocean+%28Mendeleev+Ridge%29+using+Be+isotopes&rft.au=Kim%2C+K+J%3BJull%2C+A+J+T%3BNam%2C+S+I%3BAnonymous&rft.aulast=Kim&rft.aufirst=K&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-10-15 N1 - CODEN - #07548 ER - TY - JOUR T1 - Radar detections of buried supraglacial lakes across the Greenland ice sheet AN - 1722154133; 2015-097645 AB - Surface melt over the Greenland Ice Sheet (GrIS) is increasing and estimated to account for half or more of the total mass loss. Little, however, is known about the hydrologic pathways that route surface melt within the ice sheet. Radar imaging provides a tool to investigate the englacial water storage and pathways across the GrIS. Here, we present data from the Center for Remote Sensing of Ice Sheets' radars flown by NASA's Operation IceBridge (OIB). OIB flights occur in the spring, before significant GrIS melt. The airborne radar echograms collected in the supraglacial lake regions show a unique attenuation signal attributed to over-winter storage of water, referred to here as buried lakes. The Snow Radar ( approximately 2-8 Ghz), that images the top 10's of meters of the ice sheet at high vertical resolution in the snow/firn ( approximately 4 cm), is used to map the spatial extent and depth of the retained water along OIB flight lines from 2009-2012. The buried lakes are distributed extensively around the margin of the GrIS. The subsurface water can persist through multiple winters and is, on average, approximately 4.2+0.4 m below the surface. Most buried lakes have no visible surface expression at the time of overflight but the few buried lakes that are visible have a unique visible signature associated with a darker blue color where subsurface water is located. The volume of retained water in the buried lakes is small compared to the total mass loss from the GrIS but the water will have important implications locally for the development of the englacial hydrologic network, ice temperature profiles and glacial dynamics. The buried lakes represent a year-round source of meltwater in the GrIS englacial hydrologic system. JF - American Geophysical Union Fall Meeting AU - Koenig, Lora S AU - Lampkin, D J AU - Montgomery, L AU - Hamilton, Sara AU - Joseph, C A AU - Moustafa, Samiah AU - Panzer, B AU - Casey, Kimberly AU - Paden, J D AU - Leuschen, C AU - Gogineni, S AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract C51C EP - 06 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1722154133?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Radar+detections+of+buried+supraglacial+lakes+across+the+Greenland+ice+sheet&rft.au=Koenig%2C+Lora+S%3BLampkin%2C+D+J%3BMontgomery%2C+L%3BHamilton%2C+Sara%3BJoseph%2C+C+A%3BMoustafa%2C+Samiah%3BPanzer%2C+B%3BCasey%2C+Kimberly%3BPaden%2C+J+D%3BLeuschen%2C+C%3BGogineni%2C+S%3BAnonymous&rft.aulast=Koenig&rft.aufirst=Lora&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-10-15 N1 - CODEN - #07548 ER - TY - JOUR T1 - Temporal and spatial variability of the Greenland firn aquifer revealed by ground and airborne radar data AN - 1722153978; 2015-097664 AB - During the last two decades, the Greenland ice sheet has been losing mass, significantly contributing to sea level rise (0.33+ or -0.08 mm yr-1). In the meantime, summer surface melt has been increasing in both duration and extent, and subsequent runoff represents about half of the total mass lost. However, small-scale heterogeneous physical processes and residence times associated with meltwater formation, infiltration in the firn, refreezing and/or runoff remain unconstrained in coarser resolution numerical models, leading to significant error bars while estimating total runoff. In Southeast and South Greenland, widespread aquifers have been observed in relative high accumulation and melt regions, persisting throughout the year, storing a significant mass of water within the firn. The presence of a persistent water table within the firn aquifer is observed using a 400 MHz ground-penetrating radar and the 750 MHz airborne Accumulation Radar over the same location. In both radar echograms, a strong reflection is present, illustrating the important dielectric contrast between dry firn and water-saturated firn. Since 2011, NASA's Operation IceBridge mission allows us to produce an ice-sheet-wide map of the location and depth of the firn aquifer using the Accumulation Radar echograms. Over the last four years, from one spring to the next, repeated flight lines demonstrate a relatively steady short-term behavior of water in the aquifer with constant lateral boundaries (with a few exceptions) and water table surface. An earlier radar survey (1993) implies the aquifer presence by lack of bed return, but the study area was limited to the Helheim Glacier region. Within the aquifer, a relatively slow flow of water is inferred from 2-D hydrological flow modeling, while assuming a constant hydraulic conductivity in the aquifer. On the aquifer low-elevation lateral boundary, connection with crevasses are observed in the airborne radar echograms and documented in this study. More work is required to quantify the water volume potentially draining from the aquifer into the crevasse system. The aquifer presence will need to be taken into consideration during mass balance estimations as it could impact the elevation change to mass change conversion for certain regions of the Greenland ice sheet. JF - American Geophysical Union Fall Meeting AU - Miege, Clement AU - Forster, Rick R AU - Koenig, Lora S AU - Brucker, Ludovic AU - Box, J E AU - Burgess, Evan W AU - Solomon, D Kip AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract C53A EP - 0278 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1722153978?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Temporal+and+spatial+variability+of+the+Greenland+firn+aquifer+revealed+by+ground+and+airborne+radar+data&rft.au=Miege%2C+Clement%3BForster%2C+Rick+R%3BKoenig%2C+Lora+S%3BBrucker%2C+Ludovic%3BBox%2C+J+E%3BBurgess%2C+Evan+W%3BSolomon%2C+D+Kip%3BAnonymous&rft.aulast=Miege&rft.aufirst=Clement&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-10-15 N1 - CODEN - #07548 ER - TY - JOUR T1 - WISSARD at Subglacial Lake Whillans, West Antarctica; scientific operations and initial observations AN - 1722153121; 2015-097654 AB - Subglacial Lake Whillans (SLW) is a shallow subglacial water reservoir covered by 800 m of ice. A custom-built hot-water drill was used to access SLW in a microbiologically clean way in late January 2013. Lake access for sampling and in-situ measurements was maintained for a total of 3 days. We deployed an array of scientific tools through a large diameter borehole: a downhole camera, a conductivity-temperature-depth (CTD) probe, a Niskin water sampler, an in situ filtration unit, three different sediment corers, a geothermal probe and a geophysical sensor string. We confirm the existence of a subglacial water body whose presence was inferred from satellite altimetry and surface geophysics. Subglacial water is about two orders of magnitude less saline than sea water (0.37-0.41 psu vs 35 psu) and two orders of magnitude more saline than pure drill meltwater (<0.002 psu). It reaches a minimum temperature of -0.55 degrees C, consistent with depression of the freezing point by pressure from ca. 800 m of ice. Subglacial remained turbid throughout the observation period. The recovered sediment cores contained a macroscopically structureless diamicton with shear strength between 2 and 6 kPa. Our recommendation for future subglacial access through water-filled boreholes in cold ice is to supply heat to the top of the borehole to keep it from freezing. Development of a centimeters-thick ice layer on top of the borehole water column prevented deployment of some light borehole tools. JF - American Geophysical Union Fall Meeting AU - Tulaczyk, S M AU - Mikucki, J AU - Siegfried, M R AU - Priscu, J C AU - Barcheck, C G AU - Beem, L H AU - Behar, Alberto AU - Burnett, J AU - Christner, B C AU - Fisher, A T AU - Fricker, H A AU - Mankoff, K D AU - Powell, Ross D AU - Rack, F R AU - Sampson, D AU - Scherer, Reed P AU - Schwartz, S Y AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract C52A EP - 07 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1722153121?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=WISSARD+at+Subglacial+Lake+Whillans%2C+West+Antarctica%3B+scientific+operations+and+initial+observations&rft.au=Tulaczyk%2C+S+M%3BMikucki%2C+J%3BSiegfried%2C+M+R%3BPriscu%2C+J+C%3BBarcheck%2C+C+G%3BBeem%2C+L+H%3BBehar%2C+Alberto%3BBurnett%2C+J%3BChristner%2C+B+C%3BFisher%2C+A+T%3BFricker%2C+H+A%3BMankoff%2C+K+D%3BPowell%2C+Ross+D%3BRack%2C+F+R%3BSampson%2C+D%3BScherer%2C+Reed+P%3BSchwartz%2C+S+Y%3BAnonymous&rft.aulast=Tulaczyk&rft.aufirst=S&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-10-15 N1 - CODEN - #07548 ER - TY - JOUR T1 - Assessing mining impacts from dust and black carbon on Arctic snow in Svalbard, Norway AN - 1718054132; 2015-095669 AB - Coal mining in Svalbard has been ongoing since the early 1900's. In this study, spectral reflectance of undisturbed seasonal surface snow near an active coal mine closest to the largest settlement of Longyearbyen (78.2 degrees N) with refractory black carbon (rBC) up to 345 ppb are compared to a non-contaminated pristine site at Woodfjorden (79.5 degrees N) near the northern end of Svalbard with rBC approximately 1 ppb. Dissolved black carbon (DBC) measurements are also assessed as carbon passing through a 0.7 um filter and vary from 1 to 75 ppb. Reflectance spectra decreased dramatically across all wavelengths up to 1400 nm with increasing black carbon and the reflectance spectra did not converge at infrared wavelengths. At the most contaminated site with rBC of 345 ppb and DBC of 75 ppb, absolute reflectance was much lower than previously published results with values between 10 and 20% in blue wavelengths. This indicates the potential impact of BC on natural long-term contaminated snow spectra subject to melt and refreezing and the possibility to serve as a natural end member for global remote sensing studies. These results are also significant because there is increasing pressure being put on Arctic communities to increase mining exploration. Additionally, diminishing sea-ice resulting in increased shipping traffic will also contribute to BC impacts in the Arctic. JF - American Geophysical Union Fall Meeting AU - Khan, Alia Lauren AU - Dierssen, Heidi M AU - Schwarz, Joshua P AU - Ding, Y AU - Jaffe, R AU - Painter, Thomas H AU - McKnight, Diane M AU - Hermanson, Mark H AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract C13A EP - 0419 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1718054132?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Assessing+mining+impacts+from+dust+and+black+carbon+on+Arctic+snow+in+Svalbard%2C+Norway&rft.au=Khan%2C+Alia+Lauren%3BDierssen%2C+Heidi+M%3BSchwarz%2C+Joshua+P%3BDing%2C+Y%3BJaffe%2C+R%3BPainter%2C+Thomas+H%3BMcKnight%2C+Diane+M%3BHermanson%2C+Mark+H%3BAnonymous&rft.aulast=Khan&rft.aufirst=Alia&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-10-01 N1 - CODEN - #07548 ER - TY - JOUR T1 - Isotopic evidence for complex microbial ecosystems in the phosphate-rich interval of the Miocene Monterey Formation AN - 1718054111; 2015-095609 AB - The middle Miocene Monterey Formation has long been debated as a crucial global sink for organic carbon that led to global cooling. We evaluate proxies for the microbial ecosystem to investigate organic carbon burial within the phosphate-rich interval of the Monterey Formation at Naples Beach, California by combining mineralogical evidence with delta 34S analyses of carbonate associated sulfate (CAS). All delta 34S are below Miocene seawater values ( approximately 22 ppm, VCDT) and range from +12.2 ppm to +18.5 ppm. delta 34SCAS10 (super 7) ) of observations involved. The resulting trend estimates are only dependent on length and smoothness properties obtained from numerical models, but are otherwise entirely data-driven. As a consequence, the solutions provide a valuable independent test of the forward models. Here, we present the annually-resolved spatial fields for i) dynamic ice loss, ii) SMB anomaly, iii) firn compaction and iv) (the time invariant) GIA, using a combination of GRACE, ICESat, ENVISat, CryoSat 2 and GPS vertical uplift rates, for 2003-2013. The elastic flexure of the crust is also determined simultaneously. We focus here primarily on the mass trends rather than solid earth effects. We present the spatial pattern of evolving dynamic ice loss in West Antarctica and the Antarctic Peninsula and contrast that with a significant positive SMB anomaly in East Antarctica since 2009 and other parts of the ice sheet. We also compare our SMB anomalies with those from the regional climate model, RACMO-2.3 to test its ability to capture the spatio-temporal structure of inter-annual variability in snowfall. JF - American Geophysical Union Fall Meeting AU - Bamber, J L AU - Martin, Alba AU - Schoen, N AU - Zammit-Mangion, A AU - Luthcke, Scott B AU - Petrie, E J AU - Helm, Veit AU - Remy, F AU - Wouters, Bert AU - King, Matt A AU - Rougier, J C AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract C21A EP - 0311 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1718053990?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Antarctic+ice+sheet+mass+loss%2C+glacio-isostatic+adjustment+and+surface+processes+from+ENVISAT%2C+ICESat%2C+CryoSat-2%2C+GRACE+and+GPS&rft.au=Bamber%2C+J+L%3BMartin%2C+Alba%3BSchoen%2C+N%3BZammit-Mangion%2C+A%3BLuthcke%2C+Scott+B%3BPetrie%2C+E+J%3BHelm%2C+Veit%3BRemy%2C+F%3BWouters%2C+Bert%3BKing%2C+Matt+A%3BRougier%2C+J+C%3BAnonymous&rft.aulast=Bamber&rft.aufirst=J&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-10-01 N1 - CODEN - #07548 ER - TY - JOUR T1 - Bed topography of Store Glacier and Fjord, Greenland from high-resolution gravity data and multi-beam echo sounding AN - 1718053862; 2015-095702 AB - Store Glacier is a major west Greenland outlet tidewater glacier draining an area of 30,000 square km into Uummannaq Fjord, and flowing at a speed of 4.8 km per year at its terminus. The bed topography of the glacier is poorly known and the fjord bathymetry was partially surveyed for the first time in August 2012. In this study, we present a new approach for the inference of the glacier bed topography, ice thickness and sea floor bathymetry using high-resolution airborne gravity data combined with other data. In August 2012, we acquired a 250 m spacing grid of free-air gravity data at a speed of 50 knots with accuracy at sub-milligal level much higher accuracy than NASA Operation IceBridge (OIB) gravity campaign with approximate 5.2 km resolution at 290 knots flying speed. In August 2012 and 2013, we used multi-beam echo sounding to survey the sea floor bathymetry in front of the glacier, extending to the calving face of the glacier. Inland, we combined radar-derived ice thickness with ice motion vectors to reconstruct the bed topography at a high resolution. Using a 3D inversion of the gravity data, we reconstruct seamless bed topography across the ice front boundary that matches interior data and sea floor bathymetry, and provides information about sediment thickness beneath and in front of the glacier. Comparison of the results with prior maps reveals vast differences. IBCAO3 bathymetry suggests an ice front grounded at sea level while the measured ice front is grounded 550 m below sea level. The seamless topography obtained across the grounding line reveals the presence of a previously unknown sill, which explains why the glacier has been so stable in the last 50 years. The results have important impacts on the interpretation of the glacier stability, and sensitivity to thermal forcing from the ocean and surface melt. This work was conducted at UCI under a contract with the Gordon and Betty More Foundation and with NASA. JF - American Geophysical Union Fall Meeting AU - An, L AU - Rignot, E J AU - Muto, A AU - Morlighem, Mathieu AU - Kemp, C AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract C21B EP - 0317 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1718053862?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Bed+topography+of+Store+Glacier+and+Fjord%2C+Greenland+from+high-resolution+gravity+data+and+multi-beam+echo+sounding&rft.au=An%2C+L%3BRignot%2C+E+J%3BMuto%2C+A%3BMorlighem%2C+Mathieu%3BKemp%2C+C%3BAnonymous&rft.aulast=An&rft.aufirst=L&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-10-01 N1 - CODEN - #07548 ER - TY - JOUR T1 - Quantifying the microbial utilization of methanogenesis and methane loss from northern wetlands AN - 1718053571; 2015-092542 AB - The importance of methanogenesis and percent of methane loss from the subsurface porewater in various northern wetland sites was quantified with isotope-mass balance equations. With equimolar amounts of CO2 and CH4 produced from methanogenesis, the amount of dissolved CO2 produced from methanogenesis as compared to other decomposition processes can be calculated and is equivalent to the amount of CH4 before loss due to ebullition, plant-mediated transport, and diffusion. This method was applied to porewater samples collected from various locations within permafrost collapse-scar bogs and northern peatlands. From the peatland sites, bogs produced less CO2-meth than fens (2.9+ or -1.3 mM and 3.7+ or -1.4 mM, respectively). Methanogenesis was a more utilized decomposition process in the bogs than the fens. However, greater amounts of CO2-meth found in fen sites was most likely due to the presence of more labile organic substrates resulting in greater overall production. More CH4 was lost in fens (89+ or -2.8%) than bogs (82+ or -5.3%) from plant-mediated transport as fens are dominated by vascular plants (Carex) while bogs are dominated by Sphagnum mosses. In permafrost sites, mid-bogs produced twice the amount of CO2-meth as bog moats (1.6+ or -0.63 mM and 0.82+ or -0.20 mM, respectively). Less methanogenesis was found in bog moats as recently thawed organic matter is exposed to initial decomposition processes and methane production grows over time. A similar amount of CH4 was lost from bog moats as mid bogs (63+ or -7.0% and 64+ or -9.3%, respectively) likely due to the greater density of vascular plants found within a bog moat. JF - American Geophysical Union Fall Meeting AU - Corbett, J E AU - Tfaily, Malak AU - Burdige, D AU - Glaser, P H AU - Chanton, J AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract B13G EP - 0258 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1718053571?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Quantifying+the+microbial+utilization+of+methanogenesis+and+methane+loss+from+northern+wetlands&rft.au=Corbett%2C+J+E%3BTfaily%2C+Malak%3BBurdige%2C+D%3BGlaser%2C+P+H%3BChanton%2C+J%3BAnonymous&rft.aulast=Corbett&rft.aufirst=J&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-10-01 N1 - CODEN - #07548 ER - TY - JOUR T1 - Subsurface controls on habitability of hydrothermal waters AN - 1718053413; 2015-092508 AB - Liquid water alone does not make an environment habitable. Environmental settings dominated by water-rock reactions such as in hydrothermal vents and springs are natural targets for astrobiological investigation of waterworlds because the rich geochemical diversity at these locales provides abundant energy in solvent to support microbial life. Hydrogen oxidizers are of particular interest because H2-based metabolisms are widespread and deeply rooted throughout the phylogenetic tree of life, implying they may have emerged extremely early in the evolution, and possibly even the origin, of life on Earth and potentially any other rocky bodies bearing liquid water. Dihydrogen (H2) can be lithogenically produced by the hydrolytic oxidation of the ferrous iron component in Fe-bearing minerals as well as by radiolytic cleavage of water by alpha , beta , or gamma radiation produced during the decay of radioactive isotopes. Lithogenic H2 production mechanisms operate across a range of rock types, but the concentration of dissolved H2 available to life is controlled by a number of subsurface factors such as surface geometry, water to rock ratio, production rate, and fluid flux. These factors are often controlled by the larger geologic and structural context of a particular site. We present results of an ongoing project that surveys H2 concentrations from terrestrial hydrothermal waters in diverse chemical and physical settings. Aqueous H2 concentrations and potential subsurface controls are presented for sites across the western U.S. including Yellowstone National Park, Lassen Volcanic National Park, and Iceland. In coordination with field data, we also investigate the habitability of various sites numerically by coupling a geochemical model of water-rock interaction with that of single-cell methanogenesis and compute a habitability index for the given environment. In particular, we investigate the control that temperature, rock composition, water composition, and water to rock ratio (dilution) has on biological potential. JF - American Geophysical Union Fall Meeting AU - Fristad, Kirsten E AU - Som, Sanjoy M AU - Hoehler, Tori M AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract B13A EP - 0157 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1718053413?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Subsurface+controls+on+habitability+of+hydrothermal+waters&rft.au=Fristad%2C+Kirsten+E%3BSom%2C+Sanjoy+M%3BHoehler%2C+Tori+M%3BAnonymous&rft.aulast=Fristad&rft.aufirst=Kirsten&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-10-01 N1 - CODEN - #07548 ER - TY - JOUR T1 - Sensitivity of atmospheric oxidation chemistry to climate inferred from Greenland ice core records of Delta (super 17) O(NO (sub 3) (super -) ) AN - 1718052001; 2015-092429 AB - The oxygen-17 excess of atmospheric nitrate (Delta 17O(NO (sub 3) (super -) )) is indicative of the relative abundances of oxidants (O3/HOx, where HOx = OH+HO2+RO2) in the troposphere at the time of nitrate formation, with larger O3/HOx ratios leading to larger values of Delta 17O(NO (sub 3) (super -) ). The preservation of nitrate in polar ice sheets can thus be used to retrieve information related to past changes in local and/or regional tropospheric oxidation chemistry, contributing to the understanding of atmospheric chemistry and climate interactions. We measured Delta 17O(NO (sub 3) (super -) ) in ice core samples from the Greenland Ice Sheet Project 2 (GISP2), covering the Holocene and the last glacial periods, as well as two Dansgaard-Oeschger (DO) events in the last glacial period. The values of Delta 17O(NO (sub 3) (super -) ) are higher in the glacial period compared to during the Holocene. In addition, Delta 17O(NO (sub 3) (super -) ) changes abruptly by as much as 3 ppm in approximately 100 years during these two DO events, suggesting a high sensitivity of O3/HOx to climate in the mid- to high northern latitudes. The observations suggest a general relationship between tropospheric O3/HOx ratios and climate, with larger O3/HOx ratios in colder climates compared to during warmer climates. High resolution measurements during the two DO events further indicate a second regime that in relatively warm climates, the O3/HOxratios decrease with decreasing temperature. We hypothesize that the switch between the two regimes is due to changes in the relative importance of 1) surface emissions and chemistry, and 2) stratosphere-troposphere exchange (STE) for tropospheric O3/HOx in the mid- to high northern latitudes. Surface emissions and chemistry dominate variability in tropospheric O3/HOx in relatively warm climates. In colder climates, changes in STE become dominant for the observed variability in tropospheric O3/HOx in the mid- to high northern latitudes. Prior calculations from global chemistry-climate models are qualitatively consistent with this hypothesis. JF - American Geophysical Union Fall Meeting AU - Geng, Lei AU - Alexander, Becky AU - Murray, L T AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract A52F EP - 08 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1718052001?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Sensitivity+of+atmospheric+oxidation+chemistry+to+climate+inferred+from+Greenland+ice+core+records+of+Delta+%28super+17%29+O%28NO+%28sub+3%29+%28super+-%29+%29&rft.au=Geng%2C+Lei%3BAlexander%2C+Becky%3BMurray%2C+L+T%3BAnonymous&rft.aulast=Geng&rft.aufirst=Lei&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-10-01 N1 - CODEN - #07548 ER - TY - JOUR T1 - Assessing links between water and carbon storage in Indonesian peatlands using data from the gravity recovery and climate experiment AN - 1718051945; 2015-092713 AB - Deforestation and drainage of tropical peat swamp forests for conversion to other uses results in a loss of carbon storage through the clearing and burning of forest vegetation as well as decomposition of peat soils and increased frequency of fires following drainage. We used Gravity Recovery and Climate Experiment (GRACE) terrestrial water storage observations and a global forest cover change product to investigate trends in terrestrial water storage associated with land use conversion in Indonesian peatlands between 2002 and 2012. Our initial analysis indicated that secular trends in GRACE terrestrial water storage were consistent with the spatial distribution of peatlands drained for the establishment of oil palm plantations. A decreasing trend in GRACE terrestrial water storage measurements over the observation period indicated a substantial decrease in water table heights. Combining this information with measurements of bulk density and carbon content of surface peat layers, we estimated potential emissions from carbon stocks now vulnerable to oxidation. Independent measurements of fire carbon emissions were used to estimate the fraction of committed emission that was combusted. Our research represents the first known application of GRACE data to assess loss of soil carbon storage associated with depletion of soil water. JF - American Geophysical Union Fall Meeting AU - Swails, Erin AU - Reager, J T, II AU - Randerson, J T AU - Famiglietti, J S AU - Lawrence, D AU - Yu, K AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract B33J EP - 08 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1718051945?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Assessing+links+between+water+and+carbon+storage+in+Indonesian+peatlands+using+data+from+the+gravity+recovery+and+climate+experiment&rft.au=Swails%2C+Erin%3BReager%2C+J+T%2C+II%3BRanderson%2C+J+T%3BFamiglietti%2C+J+S%3BLawrence%2C+D%3BYu%2C+K%3BAnonymous&rft.aulast=Swails&rft.aufirst=Erin&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-10-01 N1 - CODEN - #07548 ER - TY - JOUR T1 - Pisolithus tinctorius, fungal extremophile and modern analog to an early Earth environment; an unlikely harbor for deeply diverging and novel chemoautrophic microbes AN - 1718051741; 2015-092576 AB - Endosymbioses have given rise to some of the most important innovations in Earth's history. Indeed, ecological facilitation has been pivotal to the creation of higher order complexity, and in driving evolutionary transitions at every level of organization from cellular organelles to multicellularity. In this study we address a newly discovered endosymbiosis between prokaryotes and a eukaryote growing with no apparent external energy source in soils associated with acid-sulfate hydrothermal springs. Hydrothermal sites are relevant to origin of life because they provide a chemical and energetic environment that may have provided energy for pre-biotic synthesis in the absence of photosynthesis through chemoautotrophy. Pisolithus (genus, picture 1 below) is a terrestrial fungal extremophile that can grow in thermally altered soils of acid-thermal hot springs at extreme low pH and elevated temperature, thriving in conditions that are beyond the threshold of survivability for most other organisms. Fruiting bodies of this fungus accumulate elemental sulfur into the spore producing tissues (gleba) of the fruiting body. The gleba is encased in a thick peridium, or shell. Further, Pisolithus is capable of enzymatic conversion of elemental S to sulfate. The fruiting bodies are rich in hydrocarbons, contain water through much of their development and are also likely to contain CO2 from fungal cellular respiration. Further, our data indicate the presence of anaerobic zones within. Thus, the internal environment of Pisolithus contains many conditions relevant to early Earth environments in which life is thought to have originated. We used 16S rDNA sequences to test the hypothesis that Pisolithus individuals contain novel and/or ancient microbial lineages. Our data reveal lineages comprised of novel relatives of known aerobic and anaerobic chemoautrophic Bacteria (85-90% BLAST search matches), several deeply divergent and novel Bacterial lineages, and a newly discovered lineage that branches at the base of the Archaeal clade indicating the presence of, at the very least, a new Phylum/Division within this group. Thus, the data provide a model for furthering our understanding of the diversification of life, in a novel modern analog to an early Earth environment. JF - American Geophysical Union Fall Meeting AU - Cullings, K C AU - Lauzon, Carol AU - Marinkovich, Niki AU - Truong, Tina AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract B21A EP - 0004 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 12:Stratigraphy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1718051741?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Pisolithus+tinctorius%2C+fungal+extremophile+and+modern+analog+to+an+early+Earth+environment%3B+an+unlikely+harbor+for+deeply+diverging+and+novel+chemoautrophic+microbes&rft.au=Cullings%2C+K+C%3BLauzon%2C+Carol%3BMarinkovich%2C+Niki%3BTruong%2C+Tina%3BAnonymous&rft.aulast=Cullings&rft.aufirst=K&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-10-01 N1 - CODEN - #07548 ER - TY - JOUR T1 - Using brittle fragmentation theory to represent aerosol mineral composition AN - 1718051436; 2015-092422 AB - Improved estimates of dust aerosol effects upon climate require the characterization of dust mineral and chemical composition. Regional variations in soil mineral composition lead to variations in dust aerosol composition. Yet, deriving aerosol mineral content also requires knowledge of the parent soil size distribution along with the fragmentation of soil particles and aggregates during the emission process. These processes modify the size distribution and mineral abundance of the emitted aerosols compared to the parent soil. An additional challenge for modeling is that global atlases of soil texture and composition are based on wet sieving, a technique that breaks the aggregates, particularly phyllosilicates, that are encountered in natural soils, drastically altering the original size distribution of the soil that is subject to wind erosion. We propose both a semi-empirical and theoretical method to constrain the size-resolved mineral composition of emitted dust aerosols based on global atlases of soil texture and composition. Our semi-empirical method re-aggregates clay phyllosilicate minerals into larger soil particle sizes and constrains the size distribution of each emitted mineral based on observed mineral distributions at the source. Our theoretical method extends Kok's brittle fragmentation theory to individual minerals. To this end we reconstruct the undisturbed size distribution for each mineral as a function of soil texture and soil type and calculate the emitted size distribution applying brittle fragmentation and assuming homogeneous fragmentation properties among the mineral aggregates. These approaches were tested within the NASA GISS Earth System ModelE. We discuss the improvements achieved and suggest future developments. JF - American Geophysical Union Fall Meeting AU - Garcia-Pando, Carlos Perez AU - Miller, Ron L AU - Perlwitz, Jan P AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract A44C EP - 02 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1718051436?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Using+brittle+fragmentation+theory+to+represent+aerosol+mineral+composition&rft.au=Garcia-Pando%2C+Carlos+Perez%3BMiller%2C+Ron+L%3BPerlwitz%2C+Jan+P%3BAnonymous&rft.aulast=Garcia-Pando&rft.aufirst=Carlos&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-10-01 N1 - CODEN - #07548 ER - TY - JOUR T1 - Point source detection and validation using GOSAT and OCO-2 data; volcanoes and power plants AN - 1718051379; 2015-092410 AB - Point source emissions from power plants and non-erupting active volcanoes are continuous but variable in source strength and resulting plume direction. Power plant emission variations are driven by regular demand/load cycles, while volcanic CO2 emissions follow less regular oscillations. Two polar orbiting sun-synchronous satellites currently measure atmospheric CO2 with sufficient sensitivity and spatial resolution to detect point sources and their plumes: GOSAT and OCO-2. GOSAT, launched in January 2009 by JAXA, provides 260 km spaced single-sounding grid points at a 3-day repeat cycle with a circular field of view of 10 km diameter, at approximately 0.25/s samples. OCO-2 (leading the A-train on the Calipso ground track, repeat cycle 16 days), launched in July 2014 by NASA continuously collects eight <3 km2 cross-track elements at 24/s samples along a approximately 10 km wide swath either along-track (nadir), or in glint direction. GOSAT has an agile pointing system, permitting a large number of custom targets per orbit, at the expense of spatial context. OCO-2 provides up to 10,000 soundings over a different pre-programmed approximately 100 km2 area each day. Consequently, observation strategies for point sources differ between the two missions. GOSAT can precisely and frequently and repeatedly target at the central emission point, providing a great opportunity for time series observations at its fast repeat cycle. In contrast, OCO-2 is targeting mainly validation sites (maximum 1 per orbit), thus maximizing spatial data continuity. However, close incidental flyby detection of plumes, with some along-swath spatial context, is possible with OCO-2. Synergetic opportunities exist to aid in CO2 plume identification, verification and validation. For OCO-2, other A-Train constellation satellites (e.g., OMI, MODIS, Calipso) provide independent parameters such as SO2 and aerosol information. GOSAT TIR data can be used to retrieve SO2 values, providing plume validation, together with the GOSAT's spatial aerosols data. GOSAT and OCO-2 offer synergies between each other through several near-coincident measurements per day, permitting direct cross-validation, as well as making use of the combination of incidental OCO-2 flybys at point sources and their plumes, and target mode time series from GOSAT. 2013 California Institute of Technology JF - American Geophysical Union Fall Meeting AU - Schwandner, F M AU - Carn, S A AU - Kataoka, Fumie AU - Realmuto, Vincent J AU - Kuze, Akihiko AU - Shiomi, Kei AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract A41H EP - 3160 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1718051379?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Point+source+detection+and+validation+using+GOSAT+and+OCO-2+data%3B+volcanoes+and+power+plants&rft.au=Schwandner%2C+F+M%3BCarn%2C+S+A%3BKataoka%2C+Fumie%3BRealmuto%2C+Vincent+J%3BKuze%2C+Akihiko%3BShiomi%2C+Kei%3BAnonymous&rft.aulast=Schwandner&rft.aufirst=F&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-10-01 N1 - CODEN - #07548 ER - TY - JOUR T1 - The pale orange dot; spectral effects of a hazy early Earth AN - 1718050653; 2015-092892 AB - Increasing evidence suggests Archean Earth had a photochemical hydrocarbon haze similar to Titan's (Zerkle et al. 2012), with important climate implications (Pavlov et al. 2001, Trainer et al. 2006, Haqq-Misra et al. 2008, Domagal-Goldman et al. 2008, Wolf and Toon 2012). Observations also suggest hazy exoplanets are common (Sing et al. 2011, Kreidberg et al 2014), so hazy planet spectra will be relevant to future exoplanet spectral characterization missions. Here, we consider the implications of hydrocarbon aerosols on the spectrum of Archean Earth, examining the effect of a haze layer on the detectability of spectral features from putative biosignatures and the Rayleigh scattering slope. We also examine haze's impact on the spectral energy distribution at the planetary surface, which may be important to the co-evolution of life with its environment. Because the atmospheric pressure and haze particle composition of the Archean Earth are poorly constrained, we test the impact of atmospheric pressure and particle density on haze formation. Our study uses a modified version of the 1-D photochemical code developed originally by Kasting et al. (1979) to generate a fractal haze in the model Archean atmosphere. The 1-D line-by-line fully multiple scattering Spectral Mapping Atmospheric Radiative Transfer Model (SMART) (Meadows and Crisp 1996) is then used to generate synthetic spectra of early Earth with haze. We find (Fig 1) that haze scattering significantly depletes the radiation at short wavelengths, strongly affecting the spectral region of the Rayleigh slope, a broadband change in spectral shape detectable at low spectral resolution. At the surface, the spectral energy distribution is shifted towards longer wavelengths, which may be important to photosynthetic life. Thus, the haze may have significant effects on biology, which in turn produces the methane that leads to haze formation, creating feedback loops between biology and the planet. JF - American Geophysical Union Fall Meeting AU - Arney, Giada N AU - Meadows, V S AU - Domagal-Goldman, Shawn D AU - Claire, M AU - Schwieterman, E AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract PP53A EP - 1202 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 12:Stratigraphy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1718050653?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=The+pale+orange+dot%3B+spectral+effects+of+a+hazy+early+Earth&rft.au=Arney%2C+Giada+N%3BMeadows%2C+V+S%3BDomagal-Goldman%2C+Shawn+D%3BClaire%2C+M%3BSchwieterman%2C+E%3BAnonymous&rft.aulast=Arney&rft.aufirst=Giada&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-10-01 N1 - CODEN - #07548 ER - TY - JOUR T1 - Identifying and interpreting the imprint of the Little Ice Age over the Balkan landscape; a combined palynological and geochemical approach AN - 1718050610; 2015-092748 AB - We examine a multi-centennial Balkan record of vegetation and landscape during the Little Ice Age (LIA) climatic transition that lasted from c. 15th to the 19th century AD. Biological proxies (pollen, spores, and charcoal), geochemical analysis (X-ray Fluorescence (XRF)), and a robust chronology based on AMS 14C dating are used to reconstruct the vegetation response and human-environmental interactions during the LIA. A sediment core extracted from a sinkhole lake located in western Serbia (44 degrees 30'N-19 degrees 30'E; elevation 250 m a.s.l.) was sampled at 10-cm intervals for investigating biological proxies. Palynological data include temperate indigenous trees (e.g. Quercus, Betula), herbaceous taxa (e.g. Poaceae, Chenopodiaceae), and key anthropogenic indicators (e.g. Juglans, cereals) and demonstrate wet and cool conditions as well as seasonal variations during cal. 16th to 19th century AD. The XRF data obtained from the core at 1-cm intervals show changes in the clastic input and surface erosion around the lake probably owing to seasonal variations during the LIA. Moreover, pollen and charcoal data together reveal the changing nature of human interference across the LIA from intense deforestation to reforestation and sustained cultivation with climatic and seasonal variations. Correlating palaeoecological and geochemical data for this region allows us to interpret the long-term dynamics of landscape and humans across one of the important climatic intervals in Europe. The Balkans, as one of Europe's "Biodiversity Hotspots" and a rapidly changing region, provides insights into possible biotic responses to future global climatic change. JF - American Geophysical Union Fall Meeting AU - Kulkarni, C AU - Peteet, D M AU - Boger, R A AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract PP11A EP - 1316 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1718050610?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Identifying+and+interpreting+the+imprint+of+the+Little+Ice+Age+over+the+Balkan+landscape%3B+a+combined+palynological+and+geochemical+approach&rft.au=Kulkarni%2C+C%3BPeteet%2C+D+M%3BBoger%2C+R+A%3BAnonymous&rft.aulast=Kulkarni&rft.aufirst=C&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-10-01 N1 - CODEN - #07548 ER - TY - JOUR T1 - Several firn core records of accumulation over the past two millennia in Dronning Maud Land, East Antarctica AN - 1718050046; 2015-095680 AB - With more than 50 meters sea-level equivalent stored as ice, the East Antarctic Ice Sheet (EAIS) has the potential to substantially contribute to global sea level. Current estimates and future projections of the EAIS contribution to sea-level rise have errors much greater than the magnitude, indicating the sign of its contribution remains under debate. The low magnitude and high interannual variability in the accumulation rate, coupled with relatively short and few accumulation records, generates a large portion of the uncertainty. Here, we present annually resolved accumulation records from two near-coastal and two interior firn cores from Dronning Maud Land. In addition, three multi-decadal records derived from volcanic chronologies provide coarser records from three sites along the western side of the plateau divide. Most of the firn cores were collected along the Norwegian-US IPY traverse in 2007 and 2008, and the records range between 393 and 2,195 years in length, five of which are more than 1,000 years long. Our results provide a valuable dataset to investigate the periods of significant accumulation changes through the past hundreds to thousands of years, and provide a long-term reference period with which to compare the recent accumulation rates. Interestingly, the sign and magnitude of the relative difference in accumulation between the recent and long-term rates varies by location. We combine the records presented with other published firn core records from the region to investigate the spatial pattern of recent changes in the accumulation rate. Finally, the impact of the recent changes in accumulation rates observed in the records on ice-sheet mass balance is discussed both in terms of the input-output evaluation and interpretations of surface elevation change. JF - American Geophysical Union Fall Meeting AU - Medley, B AU - Neumann, Thomas AU - McConnell, J R AU - Sigl, M AU - Kipfstuhl, Sepp AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract C13B EP - 0446 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1718050046?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Several+firn+core+records+of+accumulation+over+the+past+two+millennia+in+Dronning+Maud+Land%2C+East+Antarctica&rft.au=Medley%2C+B%3BNeumann%2C+Thomas%3BMcConnell%2C+J+R%3BSigl%2C+M%3BKipfstuhl%2C+Sepp%3BAnonymous&rft.aulast=Medley&rft.aufirst=B&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-10-01 N1 - CODEN - #07548 ER - TY - JOUR T1 - Using satellite observations to evaluate the AeroCOM volcanic emissions inventory and the dispersal of volcanic SO (sub 2) clouds in MERRA AN - 1707522035; 2015-084162 AB - Simulation of volcanic emissions in climate models requires information that describes the eruption of the emissions into the atmosphere. While the total amount of gases and aerosols released from a volcanic eruption can be readily estimated from satellite observations, information about the source parameters, like injection altitude, eruption time and duration, is often not directly known. The AeroCOM volcanic emissions inventory provides estimates of eruption source parameters and has been used to initialize volcanic emissions in reanalysis projects, like MERRA. The AeroCOM volcanic emission inventory provides an eruption's daily SO2 flux and plume top altitude, yet an eruption can be very short lived, lasting only a few hours, and emit clouds at multiple altitudes. Case studies comparing the satellite observed dispersal of volcanic SO2 clouds to simulations in MERRA have shown mixed results. Some cases show good agreement with observations Okmok (2008), while for other eruptions the observed initial SO2 mass is half of that in the simulations, Sierra Negra (2005). In other cases, the initial SO2 amount agrees with the observations but shows very different dispersal rates, Soufriere Hills (2006). In the aviation hazards community, deriving accurate source terms is crucial for monitoring and short-term forecasting (24-h) of volcanic clouds. Back trajectory methods have been developed which use satellite observations and transport models to estimate the injection altitude, eruption time, and eruption duration of observed volcanic clouds. These methods can provide eruption timing estimates on a 2-hour temporal resolution and estimate the altitude and depth of a volcanic cloud. To better understand the differences between MERRA simulations and volcanic SO2 observations, back trajectory methods are used to estimate the source term parameters for a few volcanic eruptions and compared to their corresponding entry in the AeroCOM volcanic emission inventory. The nature of these mixed results is discussed with respect to the source term estimates. JF - American Geophysical Union Fall Meeting AU - Hughes, E J AU - Krotkov, Nickolay A AU - da Silva, A AU - Colarco, Peter R AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract A31B EP - 3031 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1707522035?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Using+satellite+observations+to+evaluate+the+AeroCOM+volcanic+emissions+inventory+and+the+dispersal+of+volcanic+SO+%28sub+2%29+clouds+in+MERRA&rft.au=Hughes%2C+E+J%3BKrotkov%2C+Nickolay+A%3Bda+Silva%2C+A%3BColarco%2C+Peter+R%3BAnonymous&rft.aulast=Hughes&rft.aufirst=E&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-08-27 N1 - CODEN - #07548 ER - TY - JOUR T1 - Emissions from NaturalGas operations in the Marcellus Shale Formation; in situ and and remote sensing AN - 1707521476; 2015-084129 AB - Substantial increases in natural gas production in the Marcellus Shale formation have led to measurable increases in select trace gas concentrations in the Eastern US. We present surface, aircraft, and satellite observations of trace gases to help quantify those emissions and their impacts on air quality in the Mid Atlantic States. Observations are being compared to models using data assimilation to evaluate emissions estimates. These efforts represent work done under NASA's Air Quality Applied Sciences Team, AQAST and initial steps of Flux of Atmospheric Greenhouse Gases, Maryland FLAGG-MD. JF - American Geophysical Union Fall Meeting AU - Dickerson, Russ R AU - Ren, Xinrong AU - Thompson, Anne M AU - Salawitch, R J AU - Shepson, P B AU - Burrows, J P AU - Sahu, S AU - Kollonige, D E AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract A11L EP - 04 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1707521476?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Emissions+from+NaturalGas+operations+in+the+Marcellus+Shale+Formation%3B+in+situ+and+and+remote+sensing&rft.au=Dickerson%2C+Russ+R%3BRen%2C+Xinrong%3BThompson%2C+Anne+M%3BSalawitch%2C+R+J%3BShepson%2C+P+B%3BBurrows%2C+J+P%3BSahu%2C+S%3BKollonige%2C+D+E%3BAnonymous&rft.aulast=Dickerson&rft.aufirst=Russ&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-08-27 N1 - CODEN - #07548 ER - TY - JOUR T1 - The persistence of volcanic ash in the tropical stratosphere after the Kelud eruption AN - 1707520503; 2015-084163 AB - An increase of volcanic activity over the past decade is thought to have contributed significantly to the global warming "hiatus". Thus, it is important to improve our understanding of the microphysical and optical properties of even small volcanic plumes as well as their associated climate impacts. On February 13th, 2014, the Mt Kelud volcano, located near 4 degrees S on the island of Java (Indonesia), injected volcanic gases and ash into the tropical stratosphere. An overpass of the CALIPSO lidar during the active phase of the eruption showed volcanic materials reaching 26 km with the main volcanic cloud near 18-19 km. This is the highest altitude volcanic injection since Mt Pinatubo in 1991. CALIPSO has tracked the dispersion of the Kelud plume throughout the tropical lower stratosphere ( approximately 20N-20S) since then. Depolarization lidar measurements (0.3-0.4) indicate that the plume was likely composed of irregularly shaped ash particles during the first few days after the eruption, and that sulfate aerosol (spherical droplets) formed thereafter, gradually lowering the mean depolarization to 0.1-0.2. In May, 2014, we mounted a 2-week campaign to Darwin (Australia) to measure several profiles of backscatter in red and blue channels, and one profile of aerosol size distribution using two optical particle counters, one with an inlet heated to 200 degrees C. The purpose was to characterize particle sizes, optical properties, and sulfate fraction from a relatively fresh volcanic plume in the low stratosphere. Preliminary results from the campaign suggest the persistence of ash particles at the bottom of the Kelud plume 3 months after the eruption. This is significant because the climate impact of ash is neglected in most climate models. JF - American Geophysical Union Fall Meeting AU - Vernier, Jean-Paul AU - Fairlie, T D AU - Deshler, T AU - Knepp, Travis N AU - Natarajan, Murali AU - Foster, K AU - Trepte, Charles R AU - Thomason, L W AU - Bedka, Kristopher M AU - Wienhold, Frank AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract A31B EP - 3032 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1707520503?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=The+persistence+of+volcanic+ash+in+the+tropical+stratosphere+after+the+Kelud+eruption&rft.au=Vernier%2C+Jean-Paul%3BFairlie%2C+T+D%3BDeshler%2C+T%3BKnepp%2C+Travis+N%3BNatarajan%2C+Murali%3BFoster%2C+K%3BTrepte%2C+Charles+R%3BThomason%2C+L+W%3BBedka%2C+Kristopher+M%3BWienhold%2C+Frank%3BAnonymous&rft.aulast=Vernier&rft.aufirst=Jean-Paul&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-08-27 N1 - CODEN - #07548 ER - TY - JOUR T1 - Top-down estimates of SO (sub 2) degassing emissions from the turrialba volcano using in situ measurements from unmanned aerial systems and the WRF-stilt model AN - 1707520432; 2015-084165 AB - In recent years, there has been a growing interest in the continuous volcanic degassing emissions as an important natural source of sulfur-rich gases and aerosols. To investigate the impact of volcanic degassing on atmospheric chemistry and climate forcing, chemical transport models rely on emission inventories compiled from various sources. For example, the emission database from the Aerosol Comparisons between Observations and Models (AEROCOM) project derives eruptive SO2 emissions from past literature, Volcanic Explosivity Index (VEI), and limited observations from satellite and in situ instruments. Additionally, for all volcanoes with historic eruptions, AEROCOM simply assigns a constant SO2 degassing rate of 6.2X10-4 kt/day. This rudimentary estimate can lead to large uncertainties in model simulations of the volcanic SO2 lifecycle and its impact on the atmospheric composition. In this study, we propose to apply inverse modeling techniques to estimate top-down SO2 emission rates from the Turrialba Volcano (0.025 degrees N, 83.767 degrees W) using in situ SO2 measurements from unmanned aerial systems (UASs) during March 2013. We predict SO2 mixing ratios along the UASs' flight paths based on the AEROCOM a priori SO2 emission dataset and the atmospheric trajectories and surface influence simulated by the WRF-STILT model. We incorporate a high-resolution ( approximately 30 m) terrain data into the model in order to account for the effects of the complex orography on the wind conditions near the volcano. The predicted SO2 mixing ratios are compared with measurements in a statistical procedure to minimize the model-data difference thereby yielding improved posterior estimates of volcanic SO2 degassing emission rates. A detailed uncertainty analysis will be conducted during this study taking into account all sources of error in the inverse modeling approach, such as the SO2 measurements, meteorological inputs, model configurations (e.g., spatial resolution, model physics parameterizations), and back trajectory calculations. JF - American Geophysical Union Fall Meeting AU - Xi, Xin AU - Johnson, Matthew S AU - Fladeland, Matthew M AU - Pieri, David C AU - Diaz, Jorge Andres AU - Jeong, S AU - Bland, Geoff AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract A33G EP - 3284 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1707520432?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Top-down+estimates+of+SO+%28sub+2%29+degassing+emissions+from+the+turrialba+volcano+using+in+situ+measurements+from+unmanned+aerial+systems+and+the+WRF-stilt+model&rft.au=Xi%2C+Xin%3BJohnson%2C+Matthew+S%3BFladeland%2C+Matthew+M%3BPieri%2C+David+C%3BDiaz%2C+Jorge+Andres%3BJeong%2C+S%3BBland%2C+Geoff%3BAnonymous&rft.aulast=Xi&rft.aufirst=Xin&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-08-27 N1 - CODEN - #07548 ER - TY - JOUR T1 - Volcanic SO (sub 2) ; the disparity between satellite observations and the AeroCOM database AN - 1707520304; 2015-084161 AB - Volcanoes are the largest natural source of SO2 in the world and volcanic SO2 is an important aerosol precursor in many atmospheric composition and climate simulations. The current AeroCOM database for volcanic SO2 has been compiled from both publications and assumptions about volcanic degassing behavior and includes over 36,000 named and unnamed volcanic sources. However, satellite observations compiled from the Ozone Monitoring Instrument (OMI), aboard NASA's Aura satellite, the Ozone Mapping Profiler Suite (OMPS), aboard NOAA/NASA's Suomi NPP satellite, and other satellite based SO2 observing instruments do not support many of the estimates made for volcanic SO2 in the current database. For example, the current database significantly overestimates SO2 from Barren Island in December 2008 and significantly underestimates the SO2 erupted from Ambrym during the same month. Additionally, all of the volcanoes in the database are assumed to be degassing continually to some extent, an assumption that is not supported by satellite observations. We present three CTM GEOS-Chem simulations, run from 2007 to 2008, in order to highlight these issues. The first simulation includes the existing AeroCOM SO2 database and a few select eruptions from this simulation will be compared in detail to satellite observations made over the same period of time. The second simulation will be run with all of the volcanic SO2 removed in order to examine the sensitivity of the global SO2 budget to volcanic contributions. Finally, the third simulation will be run with updated values of volcanic SO2 at specific sources that are based on satellite observations during the corresponding time period. The existing AeroCOM volcanic SO2 database is robust but, in many cases, is also based on outdated degassing estimates and assumptions that do not agree with our increasing body of satellite observations. Improving the database has the potential to improve model chemistry for a wide community of users. JF - American Geophysical Union Fall Meeting AU - Telling, J W AU - Carn, S A AU - Huang, Yaoxian AU - Krotkov, Nickolay A AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract A31B EP - 3030 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1707520304?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Volcanic+SO+%28sub+2%29+%3B+the+disparity+between+satellite+observations+and+the+AeroCOM+database&rft.au=Telling%2C+J+W%3BCarn%2C+S+A%3BHuang%2C+Yaoxian%3BKrotkov%2C+Nickolay+A%3BAnonymous&rft.aulast=Telling&rft.aufirst=J&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-08-27 N1 - CODEN - #07548 ER - TY - JOUR T1 - Effect of mineral dust on ocean color retrievals from space; a radiative transfer simulation study AN - 1707520088; 2015-084183 AB - Mineral aerosols (dust) are one of the major components of all aerosols found in the Earth's atmosphere. They are mainly soil particles that originate from arid and semiarid regions of the world that can be carried by winds for thousands of kilometers. They are a major impediment in the remote sensing of the ocean color (spectral water-leaving reflectance), because they absorb solar radiation in the UV and visible part of the spectrum and their micro-physical and optical properties are highly variable. Further, there are no reliable working algorithms to detect their presence from spaceborne ocean color observations alone, when they are present in small amount (optical thickness <0.2). In this paper we examine effect of mineral dust on ocean color retrieval from space. We use Ahmad-Fraser's vector radiative transfer (RT) code (v3.0) for ocean-atmosphere system to simulate the pseudo observations (top of atmosphere radiance) for models containing different types of aerosols (absorbing and non-absorbing) in the atmosphere. We consider the mineral aerosols as consisting of an external mixture of illite, kaolinite, montmorillonite, quartz, and calcite with a small amount of hematite (as an internal mixture), which provide the spectral dependence of single scattering albedo consistent with the values reported in the literature. We also vary the aerosol layer height in the atmosphere and amount of chlorophyll in the ocean. The simulated pseudo observations were processed through standard NASA algorithms to determine the ocean color (spectral water-leaving reflectance) and derived chlorophyll in the ocean. Results of the RT simulation study for different Sun-satellite viewing geometry, aerosol layer height and chlorophyll amount in the ocean is presented. JF - American Geophysical Union Fall Meeting AU - Ahmad, Ziauddin AU - Franz, Bryan A AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract A41F EP - 3112 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1707520088?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Effect+of+mineral+dust+on+ocean+color+retrievals+from+space%3B+a+radiative+transfer+simulation+study&rft.au=Ahmad%2C+Ziauddin%3BFranz%2C+Bryan+A%3BAnonymous&rft.aulast=Ahmad&rft.aufirst=Ziauddin&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-08-27 N1 - CODEN - #07548 ER - TY - JOUR T1 - Peroxy defects in rock-forming minerals in the Earth's crust and their role in resolving some of the longest-lasting paradoxes across the geosciences AN - 1703691203; 2015-078659 AB - Peroxy defects, first described in the 1980's, can provide explanations for enigmas and paradoxes that limit our understanding of the Earth. Peroxy defects consist of pairs of oxygen anions that changed their valence from 2- to 1- through a redox conversion (RC) of hydroxyl pairs, Si-OH HO-Si = Si-OO-Si + H (sub 2) . RC takes place during cooling when temperatures drop below the range in which thermodynamic equilibrium can be maintained. H (sub 2) molecules are diffusively mobile and hard to detect. Peroxy defects are inconspicuous and even harder to detect. When peroxy defects break, they release highly mobile electronic charge carriers, chemically O (super -) in a matrix of O (super 2-) , defect electrons in the O (super 2-) sublattice. Known as positive holes (p-holes for short) these charge carriers reside in the O 2sp-type energy levels at the upper edge of the valence band. They have the amazing ability to flow out of the rock volumes, in which they are generated. The p-holes propagate fast ( nearly equal 100 m/sec) and far (m's in the lab, km's in the field). The p-hole outflow represents an electric current. When p-holes flow into bodies of water, they oxidize H (sub 2) O to H (sub 2) O (sub 2) . When they arrive at Earth's surface, they cause high electric (E) fields. Air molecules, probably O (sub 2) +, become field-ionized, rising through the atmospheric column, leading to moisture condensation in the troposphere, mesospheric lightning, ionospheric perturbations. Break-up of peroxy defects is achieved by stressing rocks and by heating. Intrusion of magmas into crustal rocks activates p-holes, which flow down temperature gradients, causing electrochemical potentials between the magma bodies and the country rocks. This leads to electrochemically driven diffusion processes that cause highly diffusive ions such as H (super +) and Na (super +) to be added to the magma. Hence, p-holes are important for petrogenesis. Lastly, knowledge about "water" in Earth's upper mantle is based on analyses of hydroxyls in nominally anhydrous minerals, either by IR or SIMS or similar techniques. If the majority of the solute Si-OH in minerals like olivine has undergone RC during cooling from upper mantle to Earth surface temperatures, most Si-OH will have converted to peroxy plus H (sub 2) . Hence, looking for hydroxyls, even looking for H, is the wrong way to find out how much "water" is in the Earth's mantle. JF - American Geophysical Union Fall Meeting AU - Freund, F T AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract S51B EP - 4458 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1703691203?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Peroxy+defects+in+rock-forming+minerals+in+the+Earth%27s+crust+and+their+role+in+resolving+some+of+the+longest-lasting+paradoxes+across+the+geosciences&rft.au=Freund%2C+F+T%3BAnonymous&rft.aulast=Freund&rft.aufirst=F&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-08-13 N1 - CODEN - #07548 ER - TY - JOUR T1 - Corona formation on Venus via extension and lithospheric instability AN - 1700098270; 2015-073642 AB - Given the absence of plate tectonics on Venus, the origin of major rift systems like Parga Chasma is unclear. As Venus and Earth have similar radii and radiogenic abundances, we assume they have a similar internal structure and composition. Venus does not appear to have plate tectonics, and its surface displays a range of volcanic and tectonic features, including those that are both similar and dissimilar to those on Earth. In order to understand how Venus loses its heat, we study coronae at Parga Chasma. There are over 500 quasi-circular volcano-tectonic features called coronae on Venus, 131 of which are associated with Parga Chasma. Are these coronae important in the formation of the rift, or vice versa? How do they contribute to planetary heat loss? Coronae are believed to form via small-scale mantle upwellings, lithospheric instability, or a combination thereof. However, the genetic link between the coronae and rifts has remained unclear. By drawing an analogy to the East African Rift, we propose a mechanism for the formation of off-rift coronae due to the rifting process. We model the interaction of a rising mantle plume associated with a rift with a preexisting layer of dense material at the lithosphere-mantle boundary and show that a rift and its associated off-rift coronae may be genetically linked. We calculate the resulting surface topographies, melt volumes, and Bouguer gravity anomalies and find a correlation to observations. JF - American Geophysical Union Fall Meeting AU - Piskorz, D AU - Elkins-Tanton, L T AU - Smrekar, S E AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract T33B EP - 4657 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1700098270?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Corona+formation+on+Venus+via+extension+and+lithospheric+instability&rft.au=Piskorz%2C+D%3BElkins-Tanton%2C+L+T%3BSmrekar%2C+S+E%3BAnonymous&rft.aulast=Piskorz&rft.aufirst=D&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-07-30 N1 - CODEN - #07548 ER - TY - JOUR T1 - Assessment of radar-derived snow depth over Arctic sea ice AN - 1696877656; 2015-069355 AB - Knowledge of contemporaneous snow depth on Arctic sea ice is important both to constrain the regional climatology and to improve the accuracy of satellite altimeter estimates of sea ice thickness. We assess new data available from the NASA Operation IceBridge snow radar instrument and derive snow depth estimates across the western Arctic ice pack using a novel methodology based on wavelet techniques that define the primary reflecting surfaces within the snow pack. We assign uncertainty to the snow depth estimates based upon both the radar system parameters and sea ice topographic variability. The accuracy of the airborne snow depth estimates are examined via comparison with coincident measurements gathered in situ across a range of ice types in the Beaufort Sea. We discuss the effect of surface morphology on the derivation, and consequently the accuracy, of airborne snow depth estimates. We find that snow depths derived from the airborne snow radar using the wavelet-based technique are accurate to 1 cm over level ice. Over rougher surfaces including multiyear and ridged ice, the radar system is impacted by ice surface morphology. Across basin scales, we find the snow-radar-derived snow depth on first-year ice is at least approximately 60% of the value reported in the snow climatology for the Beaufort Sea, Canada Basin, and parts of the central Arctic, since these regions were previously dominated by multiyear ice during the measurement period of the climatology. Snow on multiyear ice is more consistent with the climatology. Abstract Copyright (2014), The Authors. JF - Journal of Geophysical Research: Oceans AU - Newman, Thomas AU - Farrell, Sinead L AU - Richter-Menge, Jacqueline AU - Connor, Laurence N AU - Kurtz, Nathan T AU - Elder, Bruce C AU - McAdoo, David Y1 - 2014/12// PY - 2014 DA - December 2014 SP - 8578 EP - 8602 PB - Wiley-Blackwell for American Geophysical Union, Washington, DC VL - 119 IS - 12 SN - 2169-9275, 2169-9275 KW - snow cover KW - sea ice KW - radar methods KW - ice cover KW - global change KW - distribution KW - depth KW - climate change KW - ice KW - snow KW - Arctic Ocean KW - global warming KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1696877656?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research%3A+Oceans&rft.atitle=Assessment+of+radar-derived+snow+depth+over+Arctic+sea+ice&rft.au=Newman%2C+Thomas%3BFarrell%2C+Sinead+L%3BRichter-Menge%2C+Jacqueline%3BConnor%2C+Laurence+N%3BKurtz%2C+Nathan+T%3BElder%2C+Bruce+C%3BMcAdoo%2C+David&rft.aulast=Newman&rft.aufirst=Thomas&rft.date=2014-12-01&rft.volume=119&rft.issue=12&rft.spage=8578&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Oceans&rft.issn=21699275&rft_id=info:doi/10.1002%2F2014JC010284 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2015-01-01 N1 - Number of references - 22 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables, sketch map N1 - Last updated - 2015-07-17 N1 - SubjectsTermNotLitGenreText - Arctic Ocean; climate change; depth; distribution; global change; global warming; ice; ice cover; radar methods; sea ice; snow; snow cover DO - http://dx.doi.org/10.1002/2014JC010284 ER - TY - JOUR T1 - Arctic-COLORS (Coastal Land Ocean Interactions in the Arctic); a NASA field campaign scoping study to examine land-ocean interactions in the Arctic AN - 1676588872; 2015-037992 AB - The Arctic region is warming faster than anywhere else on the planet, triggering rapid social and economic changes and impacting both terrestrial and marine ecosystems. Yet our understanding of critical processes and interactions along the Arctic land-ocean interface is limited. Arctic-COLORS is a Field Campaign Scoping Study funded by NASA's Ocean Biology and Biogeochemistry Program that aims to improve understanding and prediction of land-ocean interactions in a rapidly changing Arctic coastal zone, and assess vulnerability, response, feedbacks and resilience of coastal ecosystems, communities and natural resources to current and future pressures. Specific science objectives include: - Quantify lateral fluxes to the arctic inner shelf from (i) rivers and (ii) the outer shelf/basin that affect biology, biodiversity, biogeochemistry (i.e. organic matter, nutrients, suspended sediment), and the processing rates of these constituents in coastal waters. - Evaluate the impact of the thawing of Arctic permafrost within the river basins on coastal biology, biodiversity and biogeochemistry, including various rates of community production and the role these may play in the health of regional economies. - Assess the impact of changing Arctic landfast ice and coastal sea ice dynamics. - Establish a baseline for comparison to future change, and use state-of-the-art models to assess impacts of environmental change on coastal biology, biodiversity and biogeochemistry. A key component of Arctic-COLORS will be the integration of satellite and field observations with coupled physical-biogeochemical models for predicting impacts of future pressures on Arctic, coastal ocean, biological processes and biogeochemical cycles. Through interagency and international collaborations, and through the organization of dedicated workshops, town hall meetings and presentations at international conferences, the scoping study engages the broader scientific community and invites participation of experts from a wide range of disciplines, to refine our science objectives and outline detailed research strategies needed to attain these objectives. The deliverable will be a comprehensive report to NASA outlining the major scientific questions, and developing the initial study design and implementation concept. JF - American Geophysical Union Fall Meeting AU - Hernes, P AU - Tzortziou, Maria A AU - Salisbury, Joe AU - Mannino, Antonio AU - Matrai, P AU - Friedrichs, M A AU - del Castillo, Carlos E AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract B43B EP - 0242 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 23:Geomorphology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1676588872?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Arctic-COLORS+%28Coastal+Land+Ocean+Interactions+in+the+Arctic%29%3B+a+NASA+field+campaign+scoping+study+to+examine+land-ocean+interactions+in+the+Arctic&rft.au=Hernes%2C+P%3BTzortziou%2C+Maria+A%3BSalisbury%2C+Joe%3BMannino%2C+Antonio%3BMatrai%2C+P%3BFriedrichs%2C+M+A%3Bdel+Castillo%2C+Carlos+E%3BAnonymous&rft.aulast=Hernes&rft.aufirst=P&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-04-30 N1 - CODEN - #07548 ER - TY - JOUR T1 - The methane to carbon dioxide ratio produced during peatland decomposition and a simple approach for distinguishing this ratio AN - 1676587762; 2015-038031 AB - Peatland organic matter is cellulose-like with an oxidation state of approximately zero. When this material decomposes by fermentation, stoichiometry dictates that CH4 and CO2 should be produced in a ratio approaching one. While this is generally the case in temperate zones, this production ratio is often departed from in boreal peatlands, where the ratio of belowground CH4/CO2 production varies between 0.1 and 1, indicating CO2 production by a mechanism in addition to fermentation. The in situ CO2/CH4 production ratio may be ascertained by analysis of the 13C isotopic composition of these products, because CO2 production unaccompanied by methane production produces CO2 with an isotopic composition similar to the parent organic matter while methanogenesis produces 13C depleted methane and 13C enriched CO2. The 13C enrichment in the subsurface CO2 pool is directly related to the amount of if formed from methane production and the isotopic composition of the methane itself. Excess CO2 production is associated with more acidic conditions, Sphagnum vegetation, high and low latitudes, methane production dominated by hydrogenotrophic methane production, 13C depleted methane, and generally, more nutrient depleted conditions. Three theories have been offered to explain these observations- 1) inhibition of acetate utilization, acetate build-up and diffusion to the surface and eventual aerobic oxidation, 2) the use of humic acids as electron acceptors, and the 3) utilization of organic oxygen to produce CO2. In support of #3, we find that 13C-NMR, Fourier transform infrared (FT IR) spectroscopy, and Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR-MS) clearly show the evolution of polysaccharides and cellulose towards more decomposed humified alkyl compounds stripped of organic oxygen utilized to form CO2. Such decomposition results in more negative carbon oxidation states varying from -1 to -2. Coincident with this reduction in oxidation state, is the greater production of methane. Changing climatic conditions may alter the balance of the factors which affect the CO2/CH4 ratio by changing the water balance of the peatland, nutrient status, or temperature. JF - American Geophysical Union Fall Meeting AU - Chanton, J AU - Hodgkins, S B AU - Cooper, W T AU - Glaser, P H AU - Corbett, J E AU - Crill, Patrick M AU - Saleska, S R AU - Rich, V I AU - Holmes, B AU - Hines, Mark E AU - Tfaily, Malak AU - Kostka, Joel E AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract B44A EP - 02 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1676587762?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=The+methane+to+carbon+dioxide+ratio+produced+during+peatland+decomposition+and+a+simple+approach+for+distinguishing+this+ratio&rft.au=Chanton%2C+J%3BHodgkins%2C+S+B%3BCooper%2C+W+T%3BGlaser%2C+P+H%3BCorbett%2C+J+E%3BCrill%2C+Patrick+M%3BSaleska%2C+S+R%3BRich%2C+V+I%3BHolmes%2C+B%3BHines%2C+Mark+E%3BTfaily%2C+Malak%3BKostka%2C+Joel+E%3BAnonymous&rft.aulast=Chanton&rft.aufirst=J&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-04-30 N1 - CODEN - #07548 ER - TY - JOUR T1 - Implications of clay mineral-RNA interactions for the origin of life AN - 1676587409; 2015-037917 AB - Due to its ability to both store information and catalyze reactions, RNA is considered by many to have been the dominant biopolymer at the origin of life. We are screening a large, random RNA population for catalytic activity in the presence and absence of prebiotically relevant clay minerals, to investigate the effect of RNA-clay mineral interactions on RNA function. There is an extensive precedent for screening RNA populations for enzymatic functions such as ligation, cleavage and binding in the laboratory. While several environmental parameters have been explored, previous screens have not considered geological interactions. This is surprising as the role of clay minerals has featured prominently in many origin of life theories. Recent empirical evidence demonstrating that clay minerals can adsorb and protect RNA molecules as well as catalyze RNA polymerization has specifically reinvigorated the proposed importance of clay mineral-RNA interactions. Although the identity of the first true biomolecules remains uncertain, interaction between emerging life and its geological environment appears inevitable. We therefore consider understanding the effect of geological-biological interactions to be of crucial importance when considering the earliest biopolymers at the origin of life. Our screens are from a random population of 10 (super 14) unique random RNA sequences and are conducted with and without montmorillonite clay. We are screening for the ability of sequences to self cleave, one of the most basic enzymatic functions considered important to the earliest biopolymers. Our RNA function screens will therefore illuminate the effect of geological interactions at a crucial stage of early evolution. JF - American Geophysical Union Fall Meeting AU - Stephenson, James D AU - Ditzler, Mark A AU - Anonymous Y1 - 2014/12// PY - 2014 DA - December 2014 SP - Abstract B31E EP - 0073 PB - American Geophysical Union, Washington, DC VL - 2014 KW - 01B:Mineralogy of silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1676587409?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Implications+of+clay+mineral-RNA+interactions+for+the+origin+of+life&rft.au=Stephenson%2C+James+D%3BDitzler%2C+Mark+A%3BAnonymous&rft.aulast=Stephenson&rft.aufirst=James&rft.date=2014-12-01&rft.volume=2014&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2014 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-04-30 N1 - CODEN - #07548 ER - TY - JOUR T1 - The gravity field, orientation, and ephemeris of Mercury from MESSENGER observations after three years in orbit AN - 1660630246; 2015-021785 AB - We have analyzed 3 years of radio tracking data from the MESSENGER spacecraft in orbit around Mercury and determined the gravity field, planetary orientation, and ephemeris of the innermost planet. With improvements in spatial coverage, force modeling, and data weighting, we refined an earlier global gravity field both in quality and resolution, and we present here a spherical harmonic solution to degree and order 50. In this field, termed HgM005, uncertainties in low-degree coefficients are reduced by an order of magnitude relative to earlier global fields, and we obtained a preliminary value of the tidal Love number k (sub 2) of 0.451 + or - 0.014. We also estimated Mercury's pole position, and we obtained an obliquity value of 2.06 + or - 0.16 arcmin, in good agreement with analysis of Earth-based radar observations. From our updated rotation period (58.646146 + or - 0.000011 days) and Mercury ephemeris, we verified experimentally the planet's 3:2 spin-orbit resonance to greater accuracy than previously possible. We present a detailed analysis of the HgM005 covariance matrix, and we describe some near-circular frozen orbits around Mercury that could be advantageous for future exploration. Abstract Copyright (2014), . The Authors. JF - Journal of Geophysical Research: Planets AU - Mazarico, Erwan AU - Genova, Antonio AU - Goossens, Sander AU - Lemoine, Frank G AU - Neumann, Gregory A AU - Zuber, Maria T AU - Smith, David E AU - Solomon, Sean C Y1 - 2014/12// PY - 2014 DA - December 2014 SP - 2417 EP - 2436 PB - Wiley-Blackwell for American Geophysical Union, Washington, DC VL - 119 IS - 12 SN - 2169-9097, 2169-9097 KW - terrestrial planets KW - planets KW - gravity anomalies KW - gravity field KW - topography KW - ephemeris KW - spacecraft KW - Mercury Planet KW - MESSENGER KW - orbital observations KW - remote sensing KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1660630246?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research%3A+Planets&rft.atitle=The+gravity+field%2C+orientation%2C+and+ephemeris+of+Mercury+from+MESSENGER+observations+after+three+years+in+orbit&rft.au=Mazarico%2C+Erwan%3BGenova%2C+Antonio%3BGoossens%2C+Sander%3BLemoine%2C+Frank+G%3BNeumann%2C+Gregory+A%3BZuber%2C+Maria+T%3BSmith%2C+David+E%3BSolomon%2C+Sean+C&rft.aulast=Mazarico&rft.aufirst=Erwan&rft.date=2014-12-01&rft.volume=119&rft.issue=12&rft.spage=2417&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Planets&rft.issn=21699097&rft_id=info:doi/10.1002%2F2014JE004675 L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%292169-9100 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2015-01-01 N1 - Number of references - 62 N1 - PubXState - DC N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2015-03-05 N1 - SubjectsTermNotLitGenreText - ephemeris; gravity anomalies; gravity field; Mercury Planet; MESSENGER; orbital observations; planets; remote sensing; spacecraft; terrestrial planets; topography DO - http://dx.doi.org/10.1002/2014JE004675 ER - TY - JOUR T1 - The vertical distribution of Martian aerosol particle size AN - 1660630237; 2015-021797 AB - Using approximately 410 limb-viewing observations from the Compact Reconnaissance Imaging Spectrometer for Mars (CRISM), we retrieve the vertical distribution of Martian dust and water ice aerosol particle sizes. We find that dust particles have an effective radius of 1.0 mu m over much of the atmospheric column below 40 km throughout the Martian year. This includes the detached tropical dust layers detected in previous studies. Little to no variation with height is seen in dust particle size. Water ice clouds within the aphelion cloud belt exhibit a strong sorting of particle size with height, however, and the effective radii range from >3 mu m below 20 km to near 1.0 mu m at 40 km altitude. Conversely, water ice clouds in the seasonal polar hoods show a near-uniform particle size with an effective radius of approximately 1.5 mu m throughout the atmospheric column. Abstract Copyright (2014), . American Geophysical Union. All Rights Reserved. JF - Journal of Geophysical Research: Planets AU - Guzewich, Scott D AU - Smith, Michael D AU - Wolff, Michael J Y1 - 2014/12// PY - 2014 DA - December 2014 SP - 2694 EP - 2708 PB - Wiley-Blackwell for American Geophysical Union, Washington, DC VL - 119 IS - 12 SN - 2169-9097, 2169-9097 KW - water KW - clouds KW - imagery KW - CRISM KW - clastic sediments KW - atmosphere KW - Mars Reconnaissance Orbiter KW - Mars KW - distribution KW - size KW - infrared spectra KW - terrestrial planets KW - planets KW - ice KW - fine-grained materials KW - dust KW - sediments KW - sorting KW - aerosols KW - spectra KW - spectroscopy KW - nanoparticles KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1660630237?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research%3A+Planets&rft.atitle=The+vertical+distribution+of+Martian+aerosol+particle+size&rft.au=Guzewich%2C+Scott+D%3BSmith%2C+Michael+D%3BWolff%2C+Michael+J&rft.aulast=Guzewich&rft.aufirst=Scott&rft.date=2014-12-01&rft.volume=119&rft.issue=12&rft.spage=2694&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Planets&rft.issn=21699097&rft_id=info:doi/10.1002%2F2014JE004704 L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%292169-9100 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2015-01-01 N1 - Number of references - 38 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2015-03-05 N1 - SubjectsTermNotLitGenreText - aerosols; atmosphere; clastic sediments; clouds; CRISM; distribution; dust; fine-grained materials; ice; imagery; infrared spectra; Mars; Mars Reconnaissance Orbiter; nanoparticles; planets; sediments; size; sorting; spectra; spectroscopy; terrestrial planets; water DO - http://dx.doi.org/10.1002/2014JE004704 ER - TY - JOUR T1 - Search for a high-altitude lunar dust exosphere using Clementine navigational star tracker measurements AN - 1660629925; 2015-021790 AB - During the 1994 Clementine lunar mapping mission, portions of 25 orbits were dedicated to a search for lunar horizon glow (LHG) using the spacecraft star tracker navigation cameras. Previous putative detections of LHG were believed to result from forward scattering of sunlight by exospheric dust grains with radii approximately 0.1 mu m, observable above the limb from within the shadow of the Moon near orbital sunrise or sunset. We have examined star tracker image sequences from five Clementine orbits in which the limb occulted the Sun, and was at least partially shadowed from earthshine, minimizing the chance of stray light contamination. No LHG appears in the image data, or in any of the net brightness images, after subtraction of a reference zodiacal light model. However, some of the images display faint excess limb brightness that appears to be solar streamer structure. Therefore, we derive upper limits for the amount of dust in the lunar exosphere that could be hidden by these brightness fluctuations using a dust-scattering simulation code and simple exponential dust profiles defined by surface concentration n (sub 0) and scale height H. Simulations using grains of radius 0.1 mu m show that fluctuations in the observed excess brightness can be matched by a dust exosphere with a vertical column abundance n (sub 0) H of 5-30 cm (super -2) and overlying mass <10 (super -12) g cm (super -2) . These dust upper limit estimates are highly dependent on assumed grain size due to the rapid increase in per-grain brightness with grain radius. Abstract Copyright (2014), . American Geophysical Union. All Rights Reserved. JF - Journal of Geophysical Research: Planets AU - Glenar, David A AU - Stubbs, Timothy J AU - Hahn, Joseph M AU - Wang, Yongli Y1 - 2014/12// PY - 2014 DA - December 2014 SP - 2548 EP - 2567 PB - Wiley-Blackwell for American Geophysical Union, Washington, DC VL - 119 IS - 12 SN - 2169-9097, 2169-9097 KW - Moon KW - clastic sediments KW - altitude KW - grain size KW - fines KW - exosphere KW - brightness KW - spatial distribution KW - dust KW - sediments KW - Clementine Program KW - orbital observations KW - nanoparticles KW - remote sensing KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1660629925?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research%3A+Planets&rft.atitle=Search+for+a+high-altitude+lunar+dust+exosphere+using+Clementine+navigational+star+tracker+measurements&rft.au=Glenar%2C+David+A%3BStubbs%2C+Timothy+J%3BHahn%2C+Joseph+M%3BWang%2C+Yongli&rft.aulast=Glenar&rft.aufirst=David&rft.date=2014-12-01&rft.volume=119&rft.issue=12&rft.spage=2548&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Planets&rft.issn=21699097&rft_id=info:doi/10.1002%2F2014JE004702 L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%292169-9100 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2015-01-01 N1 - Number of references - 50 N1 - PubXState - DC N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2015-03-05 N1 - SubjectsTermNotLitGenreText - altitude; brightness; clastic sediments; Clementine Program; dust; exosphere; fines; grain size; Moon; nanoparticles; orbital observations; remote sensing; sediments; spatial distribution DO - http://dx.doi.org/10.1002/2014JE004702 ER - TY - JOUR T1 - The location of Airy-0, the Mars prime meridian reference, from stereo photogrammetric processing of THEMIS IR imaging and digital elevation data AN - 1660629872; 2015-021788 AB - The small crater Airy-0 was selected from Mariner 9 images to be the reference for the Mars prime meridian. Initial analyses in the year 2000 tied Viking Orbiter and Mars Orbiter Camera images of Airy-0 to the evolving Mars Orbiter Laser Altimeter global digital terrain model to update the location of Airy-0. Based upon this tie and radiometric tracking of landers/rovers from Earth, new expressions for the Mars spin axis direction, spin rate, and prime meridian epoch value were produced to define the orientation of the Martian surface in inertial space over time. Since the Mars Global Surveyor mission and Mars Orbiter Laser Altimeter global digital terrain model were completed some time ago, a more exhaustive study has been performed to determine the accuracy of the Airy-0 location and orientation of Mars at the standard epoch. Thermal Emission Imaging System (THEMIS) IR image cubes of the Airy and Gale crater regions were tied to the global terrain grid using precision stereo photogrammetric image processing techniques. The Airy-0 location was determined to be about 0.001 degrees east of its predicted location using the currently defined International Astronomical Union (IAU) prime meridian location. Information on this new location and how it was derived will be provided to the NASA Mars Exploration Program Geodesy and Cartography Working Group for their assessment. This NASA group will make a recommendation to the IAU Working Group on Cartographic Coordinates and Rotational Elements to update the expression for the Mars spin axis direction, spin rate, and prime meridian location. Abstract Copyright (2014), . American Geophysical Union. All Rights Reserved. JF - Journal of Geophysical Research: Planets AU - Duxbury, T C AU - Christensen, P AU - Smith, D E AU - Neumann, G A AU - Kirk, R L AU - Caplinger, M A AU - Albee, A A AU - Seregina, N V AU - Neukum, G AU - Archinal, B A Y1 - 2014/12// PY - 2014 DA - December 2014 SP - 2471 EP - 2486 PB - Wiley-Blackwell for American Geophysical Union, Washington, DC VL - 119 IS - 12 SN - 2169-9097, 2169-9097 KW - Airy KW - THEMIS KW - elevation KW - government agencies KW - Viking Program KW - Mars KW - mapping KW - photogrammetry KW - digital terrain models KW - infrared spectra KW - terrestrial planets KW - planets KW - NASA KW - Mariner Program KW - Mars Global Surveyor Program KW - MOLA KW - spectra KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1660629872?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research%3A+Planets&rft.atitle=The+location+of+Airy-0%2C+the+Mars+prime+meridian+reference%2C+from+stereo+photogrammetric+processing+of+THEMIS+IR+imaging+and+digital+elevation+data&rft.au=Duxbury%2C+T+C%3BChristensen%2C+P%3BSmith%2C+D+E%3BNeumann%2C+G+A%3BKirk%2C+R+L%3BCaplinger%2C+M+A%3BAlbee%2C+A+A%3BSeregina%2C+N+V%3BNeukum%2C+G%3BArchinal%2C+B+A&rft.aulast=Duxbury&rft.aufirst=T&rft.date=2014-12-01&rft.volume=119&rft.issue=12&rft.spage=2471&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Planets&rft.issn=21699097&rft_id=info:doi/10.1002%2F2014JE004678 L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%292169-9100 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2015-01-01 N1 - Number of references - 23 N1 - PubXState - DC N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2015-04-16 N1 - SubjectsTermNotLitGenreText - Airy; digital terrain models; elevation; government agencies; infrared spectra; mapping; Mariner Program; Mars; Mars Global Surveyor Program; MOLA; NASA; photogrammetry; planets; spectra; terrestrial planets; THEMIS; Viking Program DO - http://dx.doi.org/10.1002/2014JE004678 ER - TY - JOUR T1 - Imprint of the Rheasilvia impact on Vesta; geologic mapping of Quadrangles Gegania and Lucaria AN - 1656038621; 2015-013728 AB - We produced two 1:250,000 scale geologic maps of the adjacent quadrangles Av-6 Gegania and Av-7 Lucaria, located in the equatorial region of (4) Vesta (0-144 degrees E, 22 degrees S to 22 degrees N). The mapping is based on clear and color filter images of the Framing Camera (FC) onboard the Dawn spacecraft, which has captured the entire illuminated surface of Vesta with high spatial resolution (up to approximately 20 m/pixel), and on a digital terrain model derived from FC imagery. Besides the geologic mapping itself, a secondary purpose of this work is to investigate one of the most prominent morphological features on Vesta, namely the aggregation of several giant equatorial troughs termed the Divalia Fossae, most probably formed during the Rheasilvia impact near Vesta's south pole. The up to 465 km long and 22 km wide troughs show height differences of up to 5 km between adjacent troughs and ridges. Another imprint of the Rheasilvia impact is the >350 km long and approximately 250 km wide swath of ejecta crossing quadrangle Av-6 Gegania. This lobe shows a distinct appearance in FC color ratios and a high albedo in FC images, indicating a mineralogical similarity to material typically found within the Rheasilvia basin, in particular composed of diogenite-rich howardites. Almost the entire northern half of the mapping area shows the oldest surface, being dominated by upper crustal basaltic material. To the south, increasingly younger formations related to the Rheasilvia impact occur, either indicated by the troughs formed by Rheasilvia or by the Rheasilvia ejecta itself. Only medium sized impact craters with diameters less than 22 km occur within the two mapped quadrangles. Some of the craters exhibit ejecta blankets and/or distinctly dark or bright ejecta material in ejecta rays outside and exposures within the crater, and mass-wasting deposits down crater slopes, forming the youngest surfaces. JF - Icarus AU - Schaefer, Michael AU - Nathues, Andreas AU - Williams, David A AU - Mittlefehldt, David W AU - Le Corre, Lucille AU - Buczkowski, Debra L AU - Kneissl, Thomas AU - Thangjam, Guneshwar S AU - Hoffmann, Martin AU - Schmedemann, Nico AU - Schaefer, Tanja AU - Scully, Jennifer E C AU - Li, Jian-Yang AU - Reddy, Vishnu AU - Garry, W Brent AU - Krohn, Katrin AU - Yingst, R Aileen AU - Gaskell, Robert W AU - Russell, Christopher T Y1 - 2014/12// PY - 2014 DA - December 2014 SP - 60 EP - 73 PB - Elsevier, New York, NY VL - 244 SN - 0019-1035, 0019-1035 KW - albedo KW - imagery KW - stony meteorites KW - impact features KW - asteroids KW - Aelia Crater KW - Rheasilvia Basin KW - Occia Crater KW - mapping KW - digital terrain models KW - Dawn Mission KW - Rubria Crater KW - meteorites KW - Serena Crater KW - Lucaria Tholus KW - howardite KW - mass movements KW - surface features KW - Divalia Fossae Formation KW - Octavia Crater KW - Vesta Asteroid KW - Rheasilvia Formation KW - Gegania Crater KW - diogenite KW - Gegania Quadrangle KW - impacts KW - Saturnalia Fossae Formation KW - ejecta KW - achondrites KW - troughs KW - Rufillia Crater KW - Framing Camera KW - Divalia Fossae KW - Lucaria Quadrangle KW - eucrite KW - Publicia Crater KW - impact craters KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1656038621?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Icarus&rft.atitle=Imprint+of+the+Rheasilvia+impact+on+Vesta%3B+geologic+mapping+of+Quadrangles+Gegania+and+Lucaria&rft.au=Schaefer%2C+Michael%3BNathues%2C+Andreas%3BWilliams%2C+David+A%3BMittlefehldt%2C+David+W%3BLe+Corre%2C+Lucille%3BBuczkowski%2C+Debra+L%3BKneissl%2C+Thomas%3BThangjam%2C+Guneshwar+S%3BHoffmann%2C+Martin%3BSchmedemann%2C+Nico%3BSchaefer%2C+Tanja%3BScully%2C+Jennifer+E+C%3BLi%2C+Jian-Yang%3BReddy%2C+Vishnu%3BGarry%2C+W+Brent%3BKrohn%2C+Katrin%3BYingst%2C+R+Aileen%3BGaskell%2C+Robert+W%3BRussell%2C+Christopher+T&rft.aulast=Schaefer&rft.aufirst=Michael&rft.date=2014-12-01&rft.volume=244&rft.issue=&rft.spage=60&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2014.06.026 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. N1 - Date revised - 2015-01-01 N1 - Number of references - 30 N1 - PubXState - NY N1 - Document feature - illus. incl. geol. sketch maps N1 - SuppNotes - Includes appendices N1 - Last updated - 2015-04-16 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - achondrites; Aelia Crater; albedo; asteroids; Dawn Mission; digital terrain models; diogenite; Divalia Fossae; Divalia Fossae Formation; ejecta; eucrite; Framing Camera; Gegania Crater; Gegania Quadrangle; howardite; imagery; impact craters; impact features; impacts; Lucaria Quadrangle; Lucaria Tholus; mapping; mass movements; meteorites; Occia Crater; Octavia Crater; Publicia Crater; Rheasilvia Formation; Rheasilvia Basin; Rubria Crater; Rufillia Crater; Saturnalia Fossae Formation; Serena Crater; stony meteorites; surface features; troughs; Vesta Asteroid DO - http://dx.doi.org/10.1016/j.icarus.2014.06.026 ER - TY - JOUR T1 - The chronostratigraphy of protoplanet Vesta AN - 1656038571; 2015-013734 AB - In this paper we present a time-stratigraphic scheme and geologic time scale for the protoplanet Vesta, based on global geologic mapping and other analyses of NASA Dawn spacecraft data, complemented by insights gained from laboratory studies of howardite-eucrite-diogenite (HED) meteorites and geophysical modeling. On the basis of prominent impact structures and their associated deposits, we propose a time scale for Vesta that consists of four geologic time periods: Pre-Veneneian, Veneneian, Rheasilvian, and Marcian. The Pre-Veneneian Period covers the time from the formation of Vesta up to the Veneneia impact event, from 4.6 Ga to >2.1 Ga (using the asteroid flux-derived chronology system) or from 4.6 Ga to 3.7 Ga (under the lunar-derived chronology system). The Veneneian Period covers the time span between the Veneneia and Rheasilvia impact events, from >2.1 to 1 Ga (asteroid flux-derived chronology) or from 3.7 to 3.5 Ga (lunar-derived chronology), respectively. The Rheasilvian Period covers the time span between the Rheasilvia and Marcia impact events, and the Marcian Period covers the time between the Marcia impact event until the present. The age of the Marcia impact is still uncertain, but our current best estimates from crater counts of the ejecta blanket suggest an age between approximately 120 and 390 Ma, depending upon choice of chronology system used. Regardless, the Marcia impact represents the youngest major geologic event on Vesta. Our proposed four-period geologic time scale for Vesta is, to a first order, comparable to those developed for other airless terrestrial bodies JF - Icarus AU - Williams, David A AU - Jaumann, Ralf AU - McSween, H Y, Jr AU - Marchi, Simone AU - Schmedemann, Nico AU - Raymond, Carol A AU - Russell, Christopher T Y1 - 2014/12// PY - 2014 DA - December 2014 SP - 158 EP - 165 PB - Elsevier, New York, NY VL - 244 SN - 0019-1035, 0019-1035 KW - stony meteorites KW - impact features KW - asteroids KW - Vesta Asteroid KW - chronostratigraphy KW - HED meteorites KW - Marcian KW - planetesimals KW - Dawn Mission KW - achondrites KW - weathering KW - time scales KW - models KW - meteorites KW - space weathering KW - Veneneian KW - Pre-Veneneian KW - Rheasilvian KW - impact craters KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1656038571?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Icarus&rft.atitle=The+chronostratigraphy+of+protoplanet+Vesta&rft.au=Williams%2C+David+A%3BJaumann%2C+Ralf%3BMcSween%2C+H+Y%2C+Jr%3BMarchi%2C+Simone%3BSchmedemann%2C+Nico%3BRaymond%2C+Carol+A%3BRussell%2C+Christopher+T&rft.aulast=Williams&rft.aufirst=David&rft.date=2014-12-01&rft.volume=244&rft.issue=&rft.spage=158&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2014.06.027 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. N1 - Date revised - 2015-01-01 N1 - Number of references - 73 N1 - PubXState - NY N1 - Document feature - illus. incl. 3 tables, geol. sketch maps N1 - SuppNotes - Includes appendices N1 - Last updated - 2015-02-19 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - achondrites; asteroids; chronostratigraphy; Dawn Mission; HED meteorites; impact craters; impact features; Marcian; meteorites; models; planetesimals; Pre-Veneneian; Rheasilvian; space weathering; stony meteorites; time scales; Veneneian; Vesta Asteroid; weathering DO - http://dx.doi.org/10.1016/j.icarus.2014.06.027 ER - TY - JOUR T1 - Introduction; the geologic mapping of Vesta AN - 1656038311; 2015-013724 JF - Icarus AU - Williams, David A AU - Yingst, R Aileen AU - Garry, W Brent Y1 - 2014/12// PY - 2014 DA - December 2014 SP - 1 EP - 12 PB - Elsevier, New York, NY VL - 244 SN - 0019-1035, 0019-1035 KW - methods KW - impact features KW - asteroids KW - Vesta Asteroid KW - cartography KW - Rheasilvia Formation KW - global KW - mapping KW - digital terrain models KW - Dawn Mission KW - Framing Camera KW - chronology KW - coordinate systems KW - surface features KW - impact craters KW - Divalia Fossae Formation KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1656038311?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Icarus&rft.atitle=Introduction%3B+the+geologic+mapping+of+Vesta&rft.au=Williams%2C+David+A%3BYingst%2C+R+Aileen%3BGarry%2C+W+Brent&rft.aulast=Williams&rft.aufirst=David&rft.date=2014-12-01&rft.volume=244&rft.issue=&rft.spage=1&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2014.03.001 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. N1 - Date revised - 2015-01-01 N1 - Number of references - 101 N1 - PubXState - NY N1 - Document feature - illus. incl. 3 tables, geol. sketch maps N1 - SuppNotes - Includes appendices N1 - Last updated - 2015-04-16 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - asteroids; cartography; chronology; coordinate systems; Dawn Mission; digital terrain models; Divalia Fossae Formation; Framing Camera; global; impact craters; impact features; mapping; methods; Rheasilvia Formation; surface features; Vesta Asteroid DO - http://dx.doi.org/10.1016/j.icarus.2014.03.001 ER - TY - JOUR T1 - The unique geomorphology and physical properties of the Vestalia Terra Plateau AN - 1656037116; 2015-013730 AB - We produced a geologic map of the Av-9 Numisia quadrangle of asteroid Vesta using Dawn spacecraft data to serve as a tool to understand the geologic relations of surface features in this region. These features include the plateau Vestalia Terra, a hill named Brumalia Tholus, and an unusual "dark ribbon" material crossing the majority of the map area. Stratigraphic relations suggest that Vestalia Terra is one of the oldest features on Vesta, despite a model crater age date similar to that of much of the surface of the asteroid. Cornelia, Numisia and Drusilla craters reveal bright and dark material in their walls, and both Cornelia and Numisia have smooth and pitted terrains on their floors suggestive of the release of volatiles during or shortly after the impacts that formed these craters. Cornelia, Fabia and Teia craters have extensive bright ejecta lobes. While diogenitic material has been identified in association with the bright Teia and Fabia ejecta, hydroxyl has been detected in the dark material within Cornelia, Numisia and Drusilla. Three large pit crater chains appear in the map area, with an orientation similar to the equatorial troughs that cut the majority of Vesta. Analysis of these features has led to several interpretations of the geological history of the region. Vestalia Terra appears to be mechanically stronger than the rest of Vesta. Brumalia Tholus may be the surface representation of a dike-fed laccolith. The dark ribbon feature is proposed to represent a long-runout ejecta flow from Drusilla crater. JF - Icarus AU - Buczkowski, Debra L AU - Wyrick, D Y AU - Toplis, M AU - Yingst, R Aileen AU - Williams, David A AU - Garry, W Brent AU - Mest, Scott C AU - Kneissl, Thomas AU - Scully, Jennifer E C AU - Nathues, Andreas AU - De Sanctis, Maria Cristina AU - Le Corre, Lucille AU - Reddy, Vishnu AU - Hoffmann, Martin AU - Ammannito, Eleonora AU - Frigeri, Alessandro AU - Tosi, Federico AU - Preusker, Frank AU - Roatsch, Thomas AU - Raymond, Carol A AU - Jaumann, Ralf AU - Pieters, Carle M AU - Russell, Christopher T Y1 - 2014/12// PY - 2014 DA - December 2014 SP - 89 EP - 103 PB - Elsevier, New York, NY VL - 244 SN - 0019-1035, 0019-1035 KW - Teia Crater KW - stony meteorites KW - asteroids KW - Brumalia Tholus KW - Drusilla Crater KW - Dawn Mission KW - Numisia Quadrangle KW - meteorites KW - howardite KW - volcanism KW - mass movements KW - surface features KW - Vestalia Terra KW - Numisia Crater KW - pit crater chains KW - orientation KW - laccoliths KW - Vesta Asteroid KW - Fabia Crater KW - Robigalia Catena KW - diogenite KW - Cornelia Crater KW - ejecta KW - achondrites KW - Albalonga Catena KW - volatiles KW - physical properties KW - intrusions KW - geomorphology KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1656037116?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Icarus&rft.atitle=The+unique+geomorphology+and+physical+properties+of+the+Vestalia+Terra+Plateau&rft.au=Buczkowski%2C+Debra+L%3BWyrick%2C+D+Y%3BToplis%2C+M%3BYingst%2C+R+Aileen%3BWilliams%2C+David+A%3BGarry%2C+W+Brent%3BMest%2C+Scott+C%3BKneissl%2C+Thomas%3BScully%2C+Jennifer+E+C%3BNathues%2C+Andreas%3BDe+Sanctis%2C+Maria+Cristina%3BLe+Corre%2C+Lucille%3BReddy%2C+Vishnu%3BHoffmann%2C+Martin%3BAmmannito%2C+Eleonora%3BFrigeri%2C+Alessandro%3BTosi%2C+Federico%3BPreusker%2C+Frank%3BRoatsch%2C+Thomas%3BRaymond%2C+Carol+A%3BJaumann%2C+Ralf%3BPieters%2C+Carle+M%3BRussell%2C+Christopher+T&rft.aulast=Buczkowski&rft.aufirst=Debra&rft.date=2014-12-01&rft.volume=244&rft.issue=&rft.spage=89&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.106%2Fj.icarus.2014.03.035 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. N1 - Date revised - 2015-01-01 N1 - Number of references - 72 N1 - PubXState - NY N1 - Document feature - illus. incl. geol. sketch maps N1 - SuppNotes - Includes appendices N1 - Last updated - 2015-02-19 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - achondrites; Albalonga Catena; asteroids; Brumalia Tholus; Cornelia Crater; Dawn Mission; diogenite; Drusilla Crater; ejecta; Fabia Crater; geomorphology; howardite; intrusions; laccoliths; mass movements; meteorites; Numisia Crater; Numisia Quadrangle; orientation; physical properties; pit crater chains; Robigalia Catena; stony meteorites; surface features; Teia Crater; Vesta Asteroid; Vestalia Terra; volatiles; volcanism DO - http://dx.doi.org/10.106/j.icarus.2014.03.035 ER - TY - JOUR T1 - The geology of the Marcia Quadrangle of asteroid Vesta; assessing the effects of large, young craters AN - 1656036651; 2015-013729 AB - We used Dawn spacecraft data to identify and delineate geological units and landforms in the Marcia quadrangle of Vesta as a means to assess the role of the large, relatively young impact craters Marcia ( approximately 63 km diam.) and Calpurnia ( approximately 53 km diam.) and their surrounding ejecta field on the local geology. We also investigated a local topographic high with a dark-rayed crater named Aricia Tholus, and the impact crater Octavia that is surrounded by a distinctive diffuse mantle. Crater counts and stratigraphic relations suggest that Marcia is the youngest large crater on Vesta, in which a putative impact melt on the crater floor ranges in age between approximately 40 and 60 Ma (depending upon choice of chronology system), and Marcia's ejecta blanket ranges in age between approximately 120 and 390 Ma (depending upon choice of chronology system). We interpret the geologic units in and around Marcia crater to mark a major vestan time-stratigraphic event, and that the Marcia Formation is one of the geologically youngest formations on Vesta. Marcia crater reveals pristine bright and dark material in its walls and smooth and pitted terrains on its floor. The smooth unit we interpret as evidence of flow of impact melts and (for the pitted terrain) release of volatiles during or after the impact process. The distinctive dark ejecta surrounding craters Marcia and Calpurnia is enriched in OH- or H-bearing phases and has a variable morphology, suggestive of a complex mixture of impact ejecta and impact melts including dark materials possibly derived from carbonaceous chondrite-rich material. Aricia Tholus, which was originally interpreted as a putative vestan volcanic edifice based on lower resolution observations, appears to be a fragment of an ancient impact basin rim topped by a dark-rayed impact crater. Octavia crater has a cratering model formation age of approximately 280-990 Ma based on counts of its ejecta field (depending upon choice of chronology system), and its ejecta field is the second oldest unit in this quadrangle. The relatively young craters and their related ejecta materials in this quadrangle are in stark contrast to the surrounding heavily cratered units that are related to the billion years old or older Rheasilvia and Veneneia impact basins and Vesta's ancient crust preserved on Vestalia Terra. JF - Icarus AU - Williams, David A AU - Denevi, Brett W AU - Mittlefehldt, David W AU - Mest, Scott C AU - Schenk, Paul M AU - Yingst, R Aileen AU - Buczkowski, Debra L AU - Scully, Jennifer E C AU - Garry, W Brent AU - McCord, Thomas B AU - Combe, Jean-Philippe AU - Jaumann, Ralf AU - Pieters, Carle M AU - Nathues, Andreas AU - Le Corre, Lucille AU - Hoffmann, Martin AU - Reddy, Vishnu AU - Schaefer, Michael AU - Roatsch, Thomas AU - Preusker, Frank AU - Marchi, Simone AU - Kneissl, Thomas AU - Schmedemann, Nico AU - Neukum, Gerhard AU - Hiesinger, Harald AU - De Sanctis, Maria Cristina AU - Ammannito, Eleonora AU - Frigeri, Alessandro AU - Prettyman, Thomas H AU - Russell, Christopher T Y1 - 2014/12// PY - 2014 DA - December 2014 SP - 74 EP - 88 PB - Elsevier, New York, NY VL - 244 SN - 0019-1035, 0019-1035 KW - cratering KW - relative age KW - stony meteorites KW - impact features KW - asteroids KW - Dawn Mission KW - melts KW - Marcia Formation KW - meteorites KW - impact melts KW - volcanic features KW - chronology KW - ejecta blanket KW - surface features KW - Aricia Tholus KW - chondrites KW - Octavia Crater KW - water KW - Marcia Quadrangle KW - Calpurnia Crater KW - Vesta Asteroid KW - carbonaceous chondrites KW - achondrites KW - volatiles KW - eucrite KW - impact craters KW - crust KW - Marcia Crater KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1656036651?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Icarus&rft.atitle=The+geology+of+the+Marcia+Quadrangle+of+asteroid+Vesta%3B+assessing+the+effects+of+large%2C+young+craters&rft.au=Williams%2C+David+A%3BDenevi%2C+Brett+W%3BMittlefehldt%2C+David+W%3BMest%2C+Scott+C%3BSchenk%2C+Paul+M%3BYingst%2C+R+Aileen%3BBuczkowski%2C+Debra+L%3BScully%2C+Jennifer+E+C%3BGarry%2C+W+Brent%3BMcCord%2C+Thomas+B%3BCombe%2C+Jean-Philippe%3BJaumann%2C+Ralf%3BPieters%2C+Carle+M%3BNathues%2C+Andreas%3BLe+Corre%2C+Lucille%3BHoffmann%2C+Martin%3BReddy%2C+Vishnu%3BSchaefer%2C+Michael%3BRoatsch%2C+Thomas%3BPreusker%2C+Frank%3BMarchi%2C+Simone%3BKneissl%2C+Thomas%3BSchmedemann%2C+Nico%3BNeukum%2C+Gerhard%3BHiesinger%2C+Harald%3BDe+Sanctis%2C+Maria+Cristina%3BAmmannito%2C+Eleonora%3BFrigeri%2C+Alessandro%3BPrettyman%2C+Thomas+H%3BRussell%2C+Christopher+T&rft.aulast=Williams&rft.aufirst=David&rft.date=2014-12-01&rft.volume=244&rft.issue=&rft.spage=74&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2014.01.033 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. N1 - Date revised - 2015-01-01 N1 - Number of references - 37 N1 - PubXState - NY N1 - Document feature - illus. incl. geol. sketch maps N1 - SuppNotes - Includes appendices N1 - Last updated - 2015-04-16 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - achondrites; Aricia Tholus; asteroids; Calpurnia Crater; carbonaceous chondrites; chondrites; chronology; cratering; crust; Dawn Mission; ejecta blanket; eucrite; impact craters; impact features; impact melts; Marcia Crater; Marcia Formation; Marcia Quadrangle; melts; meteorites; Octavia Crater; relative age; stony meteorites; surface features; Vesta Asteroid; volatiles; volcanic features; water DO - http://dx.doi.org/10.1016/j.icarus.2014.01.033 ER - TY - JOUR T1 - Geologic mapping of ejecta deposits in Oppia Quadrangle, Asteroid (4) Vesta AN - 1656035241; 2015-013731 AB - Oppia Quadrangle Av-10 (288-360 degrees E, + or -22 degrees ) is a junction of key geologic features that preserve a rough history of Asteroid (4) Vesta and serves as a case study of using geologic mapping to define a relative geologic timescale. Clear filter images, stereo-derived topography, slope maps, and multispectral color-ratio images from the Framing Camera on NASA's Dawn spacecraft served as basemaps to create a geologic map and investigate the spatial and temporal relationships of the local stratigraphy. Geologic mapping reveals the oldest map unit within Av-10 is the cratered highlands terrain which possibly represents original crustal material on Vesta that was then excavated by one or more impacts to form the basin Feralia Planitia. Saturnalia Fossae and Divalia Fossae ridge and trough terrains intersect the wall of Feralia Planitia indicating that this impact basin is older than both the Veneneia and Rheasilvia impact structures, representing Pre-Veneneian crustal material. Two of the youngest geologic features in Av-10 are Lepida ( approximately 45 km diameter) and Oppia ( approximately 40 km diameter) impact craters that formed on the northern and southern wall of Feralia Planitia and each cross-cuts a trough terrain. The ejecta blanket of Oppia is mapped as 'dark mantle' material because it appears dark orange in the Framing Camera 'Clementine-type' color-ratio image and has a diffuse, gradational contact distributed to the south across the rim of Rheasilvia. Mapping of surface material that appears light orange in color in the Framing Camera 'Clementine-type' color-ratio image as 'light mantle material' supports previous interpretations of an impact ejecta origin. Some light mantle deposits are easily traced to nearby source craters, but other deposits may represent distal ejecta deposits (emplaced >5 crater radii away) in a microgravity environment. JF - Icarus AU - Garry, W Brent AU - Williams, David A AU - Yingst, R Aileen AU - Mest, Scott C AU - Buczkowski, Debra L AU - Tosi, Federico AU - Schaefer, Michael AU - Le Corre, Lucille AU - Reddy, Vishnu AU - Jaumann, Ralf AU - Pieters, Carle M AU - Russell, Christopher T AU - Raymond, Carol A Y1 - 2014/12// PY - 2014 DA - December 2014 SP - 104 EP - 119 PB - Elsevier, New York, NY VL - 244 SN - 0019-1035, 0019-1035 KW - cratering KW - imagery KW - impact features KW - asteroids KW - mapping KW - Dawn Mission KW - multispectral analysis KW - spatial distribution KW - topography KW - Feralia Planitia KW - Oppia Crater KW - Divalia Fossae Formation KW - color imagery KW - Vesta Asteroid KW - Rheasilvia Formation KW - Saturnalia Fossae Formation KW - ejecta KW - Saturnalia Fossae KW - Framing Camera KW - Divalia Fossae KW - Oppia Quadrangle KW - Lepida Crater KW - impact craters KW - temporal distribution KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1656035241?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Icarus&rft.atitle=Geologic+mapping+of+ejecta+deposits+in+Oppia+Quadrangle%2C+Asteroid+%284%29+Vesta&rft.au=Garry%2C+W+Brent%3BWilliams%2C+David+A%3BYingst%2C+R+Aileen%3BMest%2C+Scott+C%3BBuczkowski%2C+Debra+L%3BTosi%2C+Federico%3BSchaefer%2C+Michael%3BLe+Corre%2C+Lucille%3BReddy%2C+Vishnu%3BJaumann%2C+Ralf%3BPieters%2C+Carle+M%3BRussell%2C+Christopher+T%3BRaymond%2C+Carol+A&rft.aulast=Garry&rft.aufirst=W&rft.date=2014-12-01&rft.volume=244&rft.issue=&rft.spage=104&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2014.08.046 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. N1 - Date revised - 2015-01-01 N1 - Number of references - 55 N1 - PubXState - NY N1 - Document feature - illus. incl. geol. sketch maps N1 - SuppNotes - Includes appendices N1 - Last updated - 2015-02-19 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - asteroids; color imagery; cratering; Dawn Mission; Divalia Fossae; Divalia Fossae Formation; ejecta; Feralia Planitia; Framing Camera; imagery; impact craters; impact features; Lepida Crater; mapping; multispectral analysis; Oppia Crater; Oppia Quadrangle; Rheasilvia Formation; Saturnalia Fossae; Saturnalia Fossae Formation; spatial distribution; temporal distribution; topography; Vesta Asteroid DO - http://dx.doi.org/10.1016/j.icarus.2014.08.046 ER - TY - JOUR T1 - Geomorphology and structural geology of Saturnalia Fossae and adjacent structures in the northern hemisphere of Vesta AN - 1656035209; 2015-013726 AB - Vesta is a unique intermediate class of rocky body in the Solar System, between terrestrial planets and small asteroids, because of its size (average radius of approximately 263 km) and differentiation, with a crust, mantle and core. Vesta's low surface gravity (0.25 m/s2) has led to the continual absence of a protective atmosphere and consequently impact cratering and impact-related processes are prevalent. Previous work has shown that the formation of the Rheasilvia impact basin induced the equatorial Divalia Fossae, whereas the formation of the Veneneia impact basin induced the northern Saturnalia Fossae. Expanding upon this earlier work, we conducted photogeologic mapping of the Saturnalia Fossae, adjacent structures and geomorphic units in two of Vesta's northern quadrangles: Caparronia and Domitia. Our work indicates that impact processes created and/or modified all mapped structures and geomorphic units. The mapped units, ordered from oldest to youngest age based mainly on cross-cutting relationships, are: (1) Vestalia Terra unit, (2) cratered highlands unit, (3) Saturnalia Fossae trough unit, (4) Saturnalia Fossae cratered unit, (5) undifferentiated ejecta unit, (6) dark lobate unit, (7) dark crater ray unit and (8) lobate crater unit. The Saturnalia Fossae consist of five separate structures: Saturnalia Fossa A is the largest (maximum width of approximately 43 km) and is interpreted as a graben, whereas Saturnalia Fossa B-E are smaller (maximum width of approximately 15 km) and are interpreted as half grabens formed by synthetic faults. Smaller, second-order structures (maximum width of <1 km) are distinguished from the Saturnalia Fossae, a first-order structure, by the use of the general descriptive term 'adjacent structures', which encompasses minor ridges, grooves and crater chains. For classification purposes, the general descriptive term 'minor ridges' characterizes ridges that are not part of the Saturnalia Fossae and are an order of magnitude smaller (maximum width of <1 km vs. maximum width of approximately 43 km). Shear deformation resulting from the large-scale (diameter of <100 km) Rheasilvia impact is proposed to form minor ridges ( approximately 2 km to approximately 25 km in length), which are interpreted as the surface expression of thrust faults, as well as grooves ( approximately 3 km to approximately 25 km in length) and pit crater chains ( approximately 1 km to approximately 25 km in length), which are interpreted as the surface expression of extension fractures and/or dilational normal faults. Secondary crater material, ejected from small-scale and medium-scale impacts (diameters of <100 km), are interpreted to form ejecta ray systems of grooves and crater chains by bouncing and scouring across the surface. Furthermore, seismic shaking, also resulting from small-scale and medium-scale impacts, is interpreted to form minor ridges because seismic shaking induces flow of regolith, which subsequently accumulates as minor ridges that are roughly parallel to the regional slope. In this work we expand upon the link between impact processes and structural features on Vesta by presenting findings of a photogeologic, structural mapping study which highlights how impact cratering and impact-related processes are expressed on this unique, intermediate Solar System body. JF - Icarus AU - Scully, Jennifer E C AU - Yin, A AU - Russell, Christopher T AU - Buczkowski, Debra L AU - Williams, David A AU - Blewett, David T AU - Ruesch, Ottaviano AU - Hiesinger, Harald AU - Le Corre, Lucille AU - Mercer, C AU - Yingst, R Aileen AU - Garry, W Brent AU - Jaumann, Ralf AU - Roatsch, Thomas AU - Preusker, Frank AU - Gaskell, Robert W AU - Schroeder, S E AU - Ammannito, Eleonora AU - Pieters, Carle M AU - Raymond, Carol A Y1 - 2014/12// PY - 2014 DA - December 2014 SP - 23 EP - 40 PB - Elsevier, New York, NY VL - 244 SN - 0019-1035, 0019-1035 KW - cratering KW - relative age KW - asteroids KW - Rheasilvia Basin KW - mapping KW - normal faults KW - surface features KW - grooved terrains KW - Vestalia Terra KW - faults KW - pit crater chains KW - orientation KW - Vesta Asteroid KW - Veneneia Basin KW - differentiation KW - impacts KW - Saturnalia Fossae Formation KW - half grabens KW - ejecta KW - grabens KW - extension KW - Domitia Quadrangle KW - Saturnalia Fossae KW - terrains KW - Divalia Fossae KW - thrust faults KW - geomorphology KW - dilation KW - Caparronia Quadrangle KW - regolith KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1656035209?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Icarus&rft.atitle=Geomorphology+and+structural+geology+of+Saturnalia+Fossae+and+adjacent+structures+in+the+northern+hemisphere+of+Vesta&rft.au=Scully%2C+Jennifer+E+C%3BYin%2C+A%3BRussell%2C+Christopher+T%3BBuczkowski%2C+Debra+L%3BWilliams%2C+David+A%3BBlewett%2C+David+T%3BRuesch%2C+Ottaviano%3BHiesinger%2C+Harald%3BLe+Corre%2C+Lucille%3BMercer%2C+C%3BYingst%2C+R+Aileen%3BGarry%2C+W+Brent%3BJaumann%2C+Ralf%3BRoatsch%2C+Thomas%3BPreusker%2C+Frank%3BGaskell%2C+Robert+W%3BSchroeder%2C+S+E%3BAmmannito%2C+Eleonora%3BPieters%2C+Carle+M%3BRaymond%2C+Carol+A&rft.aulast=Scully&rft.aufirst=Jennifer+E&rft.date=2014-12-01&rft.volume=244&rft.issue=&rft.spage=23&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2014.01.013 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. N1 - Date revised - 2015-01-01 N1 - Number of references - 53 N1 - PubXState - NY N1 - Document feature - illus. incl. sects., geol. sketch maps N1 - SuppNotes - Includes appendices N1 - Last updated - 2015-04-16 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - asteroids; Caparronia Quadrangle; cratering; differentiation; dilation; Divalia Fossae; Domitia Quadrangle; ejecta; extension; faults; geomorphology; grabens; grooved terrains; half grabens; impacts; mapping; normal faults; orientation; pit crater chains; regolith; relative age; Rheasilvia Basin; Saturnalia Fossae; Saturnalia Fossae Formation; surface features; terrains; thrust faults; Veneneia Basin; Vesta Asteroid; Vestalia Terra DO - http://dx.doi.org/10.1016/j.icarus.2014.01.013 ER - TY - JOUR T1 - MODIS Collection 6 aerosol products: Comparison between Aqua's e-Deep Blue, Dark Target, and "merged" data sets, and usage recommendations AN - 1654682933; PQ0001053252 AB - The Moderate Resolution Imaging Spectroradiometer (MODIS) Atmospheres data product suite includes three algorithms applied to retrieve midvisible aerosol optical depth (AOD): the Enhanced Deep Blue (DB) and Dark Target (DT) algorithms over land, and a DT over-water algorithm. All three have been refined in the recent "Collection 6" (C6) MODIS reprocessing. In particular, DB has been expanded to cover vegetated land surfaces as well as brighter desert/urban areas. Additionally, a new "merged" data set which draws from all three algorithms is included in the C6 products. This study is intended to act as a point of reference for new and experienced MODIS data users with which to understand the global and regional characteristics of the C6 DB, DT, and merged data sets, based on MODIS Aqua data. This includes validation against Aerosol Robotic Network (AERONET) observations at 111 sites, focused toward regional and categorical (surface/aerosol type) analysis. Neither algorithm consistently outperforms the other, although in many cases the retrieved AOD and the level of its agreement with AERONET are very similar. In many regions the DB, DT, and merged data sets are all suitable for quantitative applications, bearing in mind that they cannot be considered independent, while in other cases one algorithm does consistently outperform the other. Usage recommendations and caveats are thus somewhat complicated and regionally dependent. Key Points * New enhanced MODIS Collection 6 aerosol data available * This study compares and validates the two over-land algorithms used * Usage recommendations are provided JF - Journal of Geophysical Research: Atmospheres AU - Sayer, A M AU - Munchak, LA AU - Hsu, N C AU - Levy, R C AU - Bettenhausen, C AU - Jeong, M-J AD - NASA Goddard Space Flight Center, Greenbelt, Maryland, USA. Y1 - 2014/12// PY - 2014 DA - December 2014 SP - 13 EP - 13,989 PB - Blackwell Publishing Ltd., 9600 Garsington Road Oxford OX4 2DQ United States VL - 119 IS - 24 SN - 2169-897X, 2169-897X KW - Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts KW - Aerosol Robotic Network (AERONET) KW - Aerosols KW - Algorithms KW - Imaging techniques KW - Satellite data KW - Deserts KW - Urban Areas KW - MODIS (Moderate Resolution Imaging Spectrometer) KW - Optical depth of aerosols KW - Q2 09243:Structure, mechanics and thermodynamics KW - M2 551.510.42:Air Pollution (551.510.42) KW - SW 0810:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1654682933?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research%3A+Atmospheres&rft.atitle=MODIS+Collection+6+aerosol+products%3A+Comparison+between+Aqua%27s+e-Deep+Blue%2C+Dark+Target%2C+and+%22merged%22+data+sets%2C+and+usage+recommendations&rft.au=Sayer%2C+A+M%3BMunchak%2C+LA%3BHsu%2C+N+C%3BLevy%2C+R+C%3BBettenhausen%2C+C%3BJeong%2C+M-J&rft.aulast=Sayer&rft.aufirst=A&rft.date=2014-12-01&rft.volume=119&rft.issue=24&rft.spage=13&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Atmospheres&rft.issn=2169897X&rft_id=info:doi/10.1002%2F2014JD022453 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-02-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Aerosols; Deserts; Imaging techniques; Aerosol Robotic Network (AERONET); Satellite data; Algorithms; Optical depth of aerosols; MODIS (Moderate Resolution Imaging Spectrometer); Urban Areas DO - http://dx.doi.org/10.1002/2014JD022453 ER - TY - JOUR T1 - Analyzing source apportioned methane in northern California during Discover-AQ-CA using airborne measurements and model simulations AN - 1647014384; 21275723 AB - This study analyzes source apportioned methane (CH sub(4)) emissions and atmospheric mixing ratios in northern California during the Discover-AQ-CA field campaign using airborne measurement data and model simulations. Source apportioned CH sub(4) emissions from the Emissions Database for Global Atmospheric Research (EDGAR) version 4.2 were applied in the 3-D chemical transport model GEOS-Chem and analyzed using airborne measurements taken as part of the Alpha Jet Atmospheric eXperiment over the San Francisco Bay Area (SFBA) and northern San Joaquin Valley (SJV). During the time period of the Discover-AQ-CA field campaign EDGAR inventory CH sub(4) emissions were 5.30 Gg day super(-1) (Gg = 1.0 x 10 super(9) g) (equating to 1.90 x 10 super(3) Gg yr super(-1)) for all of California. According to EDGAR, the SFBA and northern SJV region contributes 30% of total CH sub(4) emissions from California. Source apportionment analysis during this study shows that CH sub(4) mixing ratios over this area of northern California are largely influenced by global emissions from wetlands and local/global emissions from gas and oil production and distribution, waste treatment processes, and livestock management. Model simulations, using EDGAR emissions, suggest that the model under-estimates CH sub(4) mixing ratios in northern California (average normalized mean bias (NMB) = -5.2% and linear regression slope = 0.20). The largest negative biases in the model were calculated on days when large amounts of CH sub(4) were measured over local emission sources and atmospheric CH sub(4) mixing ratios reached values >2.5 parts per million. Sensitivity emission studies conducted during this research suggest that local emissions of CH sub(4) from livestock management processes are likely the primary source of the negative model bias. These results indicate that a variety, and larger quantity, of measurement data needs to be obtained and additional research is necessary to better quantify source apportioned CH sub(4) emissions in California. JF - Atmospheric Environment AU - Johnson, Matthew S AU - Yates, Emma L AU - Iraci, Laura T AU - Loewenstein, Max AU - Tadic, Jovan M AU - Wecht, Kevin J AU - Jeong, Seongeun AU - Fischer, Marc L AD - Earth Sciences Division, NASA Ames Research Center, Moffett Field, CA, USA Y1 - 2014/12// PY - 2014 DA - December 2014 SP - 248 EP - 256 PB - Elsevier B.V., P.O. Box 211 Amsterdam 1000 AE Netherlands VL - 99 SN - 1352-2310, 1352-2310 KW - Pollution Abstracts; Environment Abstracts; Meteorological & Geoastrophysical Abstracts KW - Methane KW - Source apportionment KW - Emission inventory KW - Livestock emissions KW - Sensitivity KW - Atmospheric pollution models KW - USA, California, San Joaquin Valley KW - Chemical transport KW - Statistical analysis KW - Simulation KW - Valleys KW - Livestock KW - Methane in the atmosphere KW - Atmospheric mixing KW - Numerical simulations KW - Emissions KW - Emission measurements KW - INE, USA, California, San Francisco Bay KW - Methane emissions KW - Mixing ratio KW - Wetlands KW - Oil and gas production KW - Atmospheric research KW - P 0000:AIR POLLUTION KW - M2 556.54:Estuaries (556.54) KW - ENA 01:Air Pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1647014384?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Atmospheric+Environment&rft.atitle=Analyzing+source+apportioned+methane+in+northern+California+during+Discover-AQ-CA+using+airborne+measurements+and+model+simulations&rft.au=Johnson%2C+Matthew+S%3BYates%2C+Emma+L%3BIraci%2C+Laura+T%3BLoewenstein%2C+Max%3BTadic%2C+Jovan+M%3BWecht%2C+Kevin+J%3BJeong%2C+Seongeun%3BFischer%2C+Marc+L&rft.aulast=Johnson&rft.aufirst=Matthew&rft.date=2014-12-01&rft.volume=99&rft.issue=&rft.spage=248&rft.isbn=&rft.btitle=&rft.title=Atmospheric+Environment&rft.issn=13522310&rft_id=info:doi/10.1016%2Fj.atmosenv.2014.09.068 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-01 N1 - Last updated - 2016-07-07 N1 - SubjectsTermNotLitGenreText - Methane in the atmosphere; Atmospheric mixing; Atmospheric pollution models; Numerical simulations; Statistical analysis; Wetlands; Mixing ratio; Methane emissions; Atmospheric research; Sensitivity; Methane; Chemical transport; Emission measurements; Emissions; Simulation; Valleys; Oil and gas production; Livestock; USA, California, San Joaquin Valley; INE, USA, California, San Francisco Bay DO - http://dx.doi.org/10.1016/j.atmosenv.2014.09.068 ER - TY - JOUR T1 - Assimilation of Remotely Sensed Soil Moisture and Snow Depth Retrievals for Drought Estimation AN - 1642625326; 21143418 AB - The accurate knowledge of soil moisture and snow conditions is important for the skillful characterization of agricultural and hydrologic droughts, which are defined as deficits of soil moisture and streamflow, respectively. This article examines the influence of remotely sensed soil moisture and snow depth retrievals toward improving estimates of drought through data assimilation. Soil moisture and snow depth retrievals from a variety of sensors (primarily passive microwave based) are assimilated separately into the Noah land surface model for the period of 1979-2011 over the continental United States, in the North American Land Data Assimilation System (NLDAS) configuration. Overall, the assimilation of soil moisture and snow datasets was found to provide marginal improvements over the open-loop configuration. Though the improvements in soil moisture fields through soil moisture data assimilation were barely at the statistically significant levels, these small improvements were found to translate into subsequent small improvements in simulated streamflow. The assimilation of snow depth datasets were found to generally improve the snow fields, but these improvements did not always translate to corresponding improvements in streamflow, including some notable degradations observed in the western United States. A quantitative examination of the percentage drought area from root-zone soil moisture and streamflow percentiles was conducted against the U.S. Drought Monitor data. The results suggest that soil moisture assimilation provides improvements at short time scales, both in the magnitude and representation of the spatial patterns of drought estimates, whereas the impact of snow data assimilation was marginal and often disadvantageous. JF - Journal of Hydrometeorology AU - Kumar, Sujay V AU - Peters-Lidard, Christa D AU - Mocko, David AU - Reichle, Rolf AU - Liu, Yuqiong AU - Arsenault, Kristi R AU - Xia, Youlong AU - Ek, Michael AU - Riggs, George AU - Livneh, Ben AD - Science Applications International Corporation, McLean, Virginia, and Hydrological Sciences Laboratory, NASA Goddard Space Flight Center, Greenbelt, Maryland Y1 - 2014/12// PY - 2014 DA - December 2014 SP - 2446 EP - 2469 PB - American Meteorological Society, 45 Beacon St. Boston MA 02108-3693 United States VL - 15 IS - 6 SN - 1525-755X, 1525-755X KW - Meteorological & Geoastrophysical Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Aqualine Abstracts; Water Resources Abstracts KW - Streamflow KW - Drought KW - Snow KW - Soil moisture KW - Data assimilation KW - Sensors KW - Snow cover depth KW - Remote sensing KW - Statistical analysis KW - Soil Water KW - Drought estimation KW - Hydrologic Models KW - Microwaves KW - Hydrologic Data KW - Droughts KW - Snow Depth KW - Hydrologic drought KW - Stream flow KW - USA KW - Hydrometeorological research KW - Moisture Content KW - AQ 00001:Water Resources and Supplies KW - SW 5040:Data acquisition KW - Q2 09171:Dynamics of lakes and rivers KW - M2 556.16:Runoff (556.16) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1642625326?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Hydrometeorology&rft.atitle=Assimilation+of+Remotely+Sensed+Soil+Moisture+and+Snow+Depth+Retrievals+for+Drought+Estimation&rft.au=Kumar%2C+Sujay+V%3BPeters-Lidard%2C+Christa+D%3BMocko%2C+David%3BReichle%2C+Rolf%3BLiu%2C+Yuqiong%3BArsenault%2C+Kristi+R%3BXia%2C+Youlong%3BEk%2C+Michael%3BRiggs%2C+George%3BLivneh%2C+Ben&rft.aulast=Kumar&rft.aufirst=Sujay&rft.date=2014-12-01&rft.volume=15&rft.issue=6&rft.spage=2446&rft.isbn=&rft.btitle=&rft.title=Journal+of+Hydrometeorology&rft.issn=1525755X&rft_id=info:doi/10.1175%2FJHM-D-13-0132.1 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-01 N1 - Number of references - 113 N1 - Last updated - 2016-09-29 N1 - SubjectsTermNotLitGenreText - Microwaves; Sensors; Snow; Droughts; Stream flow; Hydrometeorological research; Snow cover depth; Statistical analysis; Remote sensing; Drought; Drought estimation; Soil moisture; Data assimilation; Hydrologic drought; Hydrologic Models; Snow Depth; Streamflow; Moisture Content; Soil Water; Hydrologic Data; USA DO - http://dx.doi.org/10.1175/JHM-D-13-0132.1 ER - TY - JOUR T1 - Assessing the Impact of L-Band Observations on Drought and Flood Risk Estimation: A Decision-Theoretic Approach in an OSSE Environment AN - 1642624862; 21143429 AB - Observing system simulation experiments (OSSEs) are often conducted to evaluate the worth of existing data and data yet to be collected from proposed new missions. As missions increasingly require a broader "Earth systems" focus, it is important that the OSSEs capture the potential benefits of the observations on end-use applications. Toward this end, the results from the OSSEs must also be evaluated with a suite of metrics that capture the value, uncertainty, and information content of the observations while factoring in both science and societal impacts. This article presents a soil moisture OSSE that employs simulated L-band measurements and assesses its utility toward improving drought and flood risk estimates using the NASA Land Information System (LIS). A decision-theory-based analysis is conducted to assess the economic utility of the observations toward improving these applications. The results suggest that the improvements in surface soil moisture, root-zone soil moisture, and total runoff fields obtained through the assimilation of L-band measurements are effective in providing improvements in the drought and flood risk assessments as well. The decision-theory analysis not only demonstrates the economic utility of observations but also shows that the use of probabilistic information from the model simulations is more beneficial compared to the use of corresponding deterministic estimates. The experiment also demonstrates the value of a comprehensive modeling environment such as LIS for conducting end-to-end OSSEs by linking satellite observations, physical models, data assimilation algorithms, and end-use application models in a single integrated framework. JF - Journal of Hydrometeorology AU - Kumar, Sujay V AU - Harrison, Kenneth W AU - Peters-Lidard, Christa D AU - Santanello, Joseph A, Jr AU - Kirschbaum, Dalia AD - Science Applications International Corporation, Beltsville, and Hydrological Sciences Laboratory, NASA Goddard Space Flight Center, Greenbelt, Maryland Y1 - 2014/12// PY - 2014 DA - December 2014 SP - 2140 EP - 2156 PB - American Meteorological Society, 45 Beacon St. Boston MA 02108-3693 United States VL - 15 IS - 6 SN - 1525-755X, 1525-755X KW - Meteorological & Geoastrophysical Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Aqualine Abstracts; Water Resources Abstracts KW - Soil moisture KW - Satellite observations KW - Data assimilation KW - Land surface model KW - Meteorological data KW - Algorithms KW - Drought KW - Soil Water KW - Utilities KW - Risks KW - Assessments KW - Floods KW - Droughts KW - Drought and floods KW - Model Studies KW - Hydrometeorology KW - Risk KW - Satellite data KW - Hydrometeorological research KW - Numerical simulations KW - Moisture Content KW - Runoff KW - Information systems KW - SW 5010:Network design KW - Q2 09161:General KW - M2 556.16:Runoff (556.16) KW - AQ 00005:Underground Services and Water Use UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1642624862?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Hydrometeorology&rft.atitle=Assessing+the+Impact+of+L-Band+Observations+on+Drought+and+Flood+Risk+Estimation%3A+A+Decision-Theoretic+Approach+in+an+OSSE+Environment&rft.au=Kumar%2C+Sujay+V%3BHarrison%2C+Kenneth+W%3BPeters-Lidard%2C+Christa+D%3BSantanello%2C+Joseph+A%2C+Jr%3BKirschbaum%2C+Dalia&rft.aulast=Kumar&rft.aufirst=Sujay&rft.date=2014-12-01&rft.volume=15&rft.issue=6&rft.spage=2140&rft.isbn=&rft.btitle=&rft.title=Journal+of+Hydrometeorology&rft.issn=1525755X&rft_id=info:doi/10.1175%2FJHM-D-13-0204.1 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-01 N1 - Number of references - 73 N1 - Last updated - 2016-09-29 N1 - SubjectsTermNotLitGenreText - Floods; Droughts; Runoff; Risks; Information systems; Meteorological data; Hydrometeorological research; Satellite data; Numerical simulations; Algorithms; Soil moisture; Data assimilation; Drought and floods; Hydrometeorology; Risk; Assessments; Moisture Content; Soil Water; Drought; Utilities; Model Studies DO - http://dx.doi.org/10.1175/JHM-D-13-0204.1 ER - TY - JOUR T1 - Estimation of land surface temperature from atmospherically corrected LANDSAT TM image using 6S and NCEP global reanalysis product AN - 1642619758; 21110215 AB - Water vapour is the most variable constituent in the atmosphere which is responsible for serious noise in the optical satellite images. This research is focused on the vertical distribution of water vapour and deducing its possible effects on the atmospheric correction process. The vertical distribution of precipitable water vapour, water vapour mixing ratio with geopotential height and pressure were estimated through the weather research and forecasting (WRF) model by downscaling the National Center for Environmental Prediction (NCEP) global reanalysis product. In addition, the most widely used LANDSAT TM satellite image has been used for this assessment. The WRF model was applied with three domains centred on a LANDSAT captured image over the area. The 6S atmospheric correction code was utilised for viewing the effect of precipitable water vapour on satellite image correction. The analysis was conducted on two pressure levels (1,000 and 100 hPa) representing the troposphere and stratosphere, respectively. The validation of the atmospheric correction has been performed by estimating the land surface temperature (LST) over the Walnut Creek region and its comparison with the Soil Moisture Experiments in 2002 (SMEX02) LST field validation datasets. The overall analyses indicate a higher accuracy of LST repossession with 100 hPa corrected image. JF - Environmental Earth Sciences AU - Srivastava, Prashant K AU - Han, Dawei AU - Rico-Ramirez, Miguel A AU - Bray, Michaela AU - Islam, Tanvir AU - Gupta, Manika AU - Dai, Qiang AD - Hydrological Sciences, NASA Goddard Space Flight Center, Greenbelt, Maryland, USA, prashant.k.srivastava@nasa.gov Y1 - 2014/12// PY - 2014 DA - December 2014 SP - 5183 EP - 5196 PB - Springer Science+Business Media, Van Godewijckstraat 30 Dordrecht 3311 GX Netherlands VL - 72 IS - 12 SN - 1866-6280, 1866-6280 KW - Pollution Abstracts; Meteorological & Geoastrophysical Abstracts; Environment Abstracts KW - Prediction KW - Surface temperatures KW - Acoustic waves KW - Remote sensing KW - LANDSAT KW - Atmosphere KW - Data reanalysis KW - USA, Iowa, Ames, Walnut Creek KW - Vapors KW - Mixing ratio KW - Noise pollution KW - Weather KW - Temperature KW - Noise levels KW - Troposphere KW - Juglans KW - Satellites KW - Stratosphere KW - Landsat KW - Precipitable water KW - Geopotential field analysis KW - Satellite image correction KW - Soil moisture KW - P 0000:AIR POLLUTION KW - M2 556.14:Infiltration/Soil Moisture (556.14) KW - ENA 01:Air Pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1642619758?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Earth+Sciences&rft.atitle=Estimation+of+land+surface+temperature+from+atmospherically+corrected+LANDSAT+TM+image+using+6S+and+NCEP+global+reanalysis+product&rft.au=Srivastava%2C+Prashant+K%3BHan%2C+Dawei%3BRico-Ramirez%2C+Miguel+A%3BBray%2C+Michaela%3BIslam%2C+Tanvir%3BGupta%2C+Manika%3BDai%2C+Qiang&rft.aulast=Srivastava&rft.aufirst=Prashant&rft.date=2014-12-01&rft.volume=72&rft.issue=12&rft.spage=5183&rft.isbn=&rft.btitle=&rft.title=Environmental+Earth+Sciences&rft.issn=18666280&rft_id=info:doi/10.1007%2Fs12665-014-3388-1 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-01 N1 - Number of references - 56 N1 - Last updated - 2016-08-03 N1 - SubjectsTermNotLitGenreText - Surface temperatures; Geopotential field analysis; Precipitable water; Acoustic waves; Satellite image correction; Mixing ratio; LANDSAT; Noise pollution; Soil moisture; Stratosphere; Data reanalysis; Prediction; Weather; Landsat; Vapors; Noise levels; Temperature; Remote sensing; Troposphere; Atmosphere; Satellites; Juglans; USA, Iowa, Ames, Walnut Creek DO - http://dx.doi.org/10.1007/s12665-014-3388-1 ER - TY - JOUR T1 - Water Balance in the Amazon Basin from a Land Surface Model Ensemble AN - 1642612375; 21143441 AB - Despite recent advances in land surface modeling and remote sensing, estimates of the global water budget are still fairly uncertain. This study aims to evaluate the water budget of the Amazon basin based on several state-of-the-art land surface model (LSM) outputs. Water budget variables (terrestrial water storage TWS, evapotranspiration ET, surface runoff R, and base flow B) are evaluated at the basin scale using both remote sensing and in situ data. Meteorological forcings at a 3-hourly time step and 1 degree spatial resolution were used to run 14 LSMs. Precipitation datasets that have been rescaled to match monthly Global Precipitation Climatology Project (GPCP) and Global Precipitation Climatology Centre (GPCC) datasets and the daily Hydrologie du Bassin de l'Amazone (HYBAM) dataset were used to perform three experiments. The Hydrological Modeling and Analysis Platform (HyMAP) river routing scheme was forced with R and B and simulated discharges are compared against observations at 165 gauges. Simulated ET and TWS are compared against FLUXNET and MOD16A2 evapotranspiration datasets and Gravity Recovery and Climate Experiment (GRACE) TWS estimates in two subcatchments of main tributaries (Madeira and Negro Rivers). At the basin scale, simulated ET ranges from 2.39 to 3.26 mm day super(-1) and a low spatial correlation between ET and precipitation indicates that evapotranspiration does not depend on water availability over most of the basin. Results also show that other simulated water budget components vary significantly as a function of both the LSM and precipitation dataset, but simulated TWS generally agrees with GRACE estimates at the basin scale. The best water budget simulations resulted from experiments using HYBAM, mostly explained by a denser rainfall gauge network and the rescaling at a finer temporal scale. JF - Journal of Hydrometeorology AU - Getirana, Augusto C AU - Dutra, Emanuel AU - Guimberteau, Matthieu AU - Kam, Jonghun AU - Li, Hong-Yi AU - Decharme, Bertrand AU - Zhang, Zhengqiu AU - Ducharne, Agnes AU - Boone, Aaron AU - Balsamo, Gianpaolo AD - Hydrological Sciences Laboratory, NASA Goddard Space Flight Center, Greenbelt, Maryland Y1 - 2014/12// PY - 2014 DA - December 2014 SP - 2586 EP - 2614 PB - American Meteorological Society, 45 Beacon St. Boston MA 02108-3693 United States VL - 15 IS - 6 SN - 1525-755X, 1525-755X KW - Meteorological & Geoastrophysical Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Aqualine Abstracts; Water Resources Abstracts KW - Amazon region KW - Runoff KW - Hydrologic models KW - Land surface model KW - Remote Sensing KW - Water budget KW - Remote sensing KW - Hydrologic Budget KW - Hydrologic Models KW - Surface runoff KW - Climatology KW - Tributaries KW - Rivers KW - Rain gauge networks KW - Hydrologic analysis KW - Climate KW - Available Water KW - Water storage KW - Global precipitation KW - Evapotranspiration KW - Routing KW - Precipitation KW - Water balance KW - Hydrometeorological research KW - Numerical simulations KW - South America, Amazon R. KW - Atmospheric forcing KW - Climate and hydrology KW - Argentina, Negro R. KW - ASE, Atlantic, Madeira KW - M2 556:General (556) KW - SW 5040:Data acquisition KW - AQ 00005:Underground Services and Water Use KW - Q2 09146:TSD distribution, water masses and circulation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1642612375?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Hydrometeorology&rft.atitle=Water+Balance+in+the+Amazon+Basin+from+a+Land+Surface+Model+Ensemble&rft.au=Getirana%2C+Augusto+C%3BDutra%2C+Emanuel%3BGuimberteau%2C+Matthieu%3BKam%2C+Jonghun%3BLi%2C+Hong-Yi%3BDecharme%2C+Bertrand%3BZhang%2C+Zhengqiu%3BDucharne%2C+Agnes%3BBoone%2C+Aaron%3BBalsamo%2C+Gianpaolo&rft.aulast=Getirana&rft.aufirst=Augusto&rft.date=2014-12-01&rft.volume=15&rft.issue=6&rft.spage=2586&rft.isbn=&rft.btitle=&rft.title=Journal+of+Hydrometeorology&rft.issn=1525755X&rft_id=info:doi/10.1175%2FJHM-D-14-0068.1 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-01-01 N1 - Number of references - 103 N1 - Last updated - 2016-02-04 N1 - SubjectsTermNotLitGenreText - Water balance; Water budget; Climate; Atmospheric forcing; Remote sensing; Climatology; Evapotranspiration; Tributaries; Runoff; Rain gauge networks; Hydrologic analysis; Global precipitation; Water storage; Precipitation; Hydrometeorological research; Numerical simulations; Surface runoff; Climate and hydrology; Rivers; Remote Sensing; Hydrologic Models; Available Water; Hydrologic Budget; Routing; South America, Amazon R.; Argentina, Negro R.; ASE, Atlantic, Madeira DO - http://dx.doi.org/10.1175/JHM-D-14-0068.1 ER - TY - JOUR T1 - Comparison of the stress-stimulated current of dry and fluid-saturated gabbro samples AN - 1641011589; 2015-002536 AB - We investigate charge generation as a function of stress in fine-grained gabbro for both nominally dry samples and samples fully saturated with electrically conductive brine fluids similar to those observed in active earthquake fault zones. These experiments address a number of proposed and reported electrical precursory and coseismic phenomena associated with earthquakes. Compressive load was applied to one end of the sample in repetitive cycles using a pair of precision steel platens driven by a large hydraulic press. The samples were tested by cycling between constant low stress and constant high stress values with a 200-s periodicity. Net charge transport between the stressed and unstressed sample ends was monitored with a picoammeter. For the nominally dry samples, stress-stimulated current (SSC) transients on the order of 50-400 pA peak-to-peak were observed with a decay time constant approximately 10 s during stress loading and unloading. Under constant compressive loads of approximately 22 MPa, small negative polarity SSC of approximately 15 pA magnitude was observed as an offset from the baseline current at low load (5 MPa) conditions. For the fluid-saturated samples, neither transients nor SSCs were observed as a function of stress when the load was cycled, an observation that is consistent with more rapid internal self-discharge due to higher electrical conductivity of the sample. Because the Earth"s crust is fluid saturated, observation of significant electrical charge buildup is not expected during the observed slow stress accumulation prior to earthquakes or during any slow precursory stress release that may occur in the region of earthquake nucleation. However, observation of coseismic charge generation due to electrokinetic, triboelectric, and other processes may occur during earthquake stress drops, surface rupture, and seismic-wave arrivals from dynamic rupture. JF - Bulletin of the Seismological Society of America AU - Dahlgren, Robert P AU - Johnston, Malcolm J S AU - Vanderbilt, Vern C AU - Nakaba, Rebecca N Y1 - 2014/12// PY - 2014 DA - December 2014 SP - 2662 EP - 2672 PB - Seismological Society of America, Berkeley, CA VL - 104 IS - 6 SN - 0037-1106, 0037-1106 KW - experimental studies KW - loading KW - igneous rocks KW - stress KW - simulation KW - seismic response KW - plutonic rocks KW - seismicity KW - saturation KW - pore pressure KW - gabbros KW - compression KW - earthquakes KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1641011589?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Bulletin+of+the+Seismological+Society+of+America&rft.atitle=Comparison+of+the+stress-stimulated+current+of+dry+and+fluid-saturated+gabbro+samples&rft.au=Dahlgren%2C+Robert+P%3BJohnston%2C+Malcolm+J+S%3BVanderbilt%2C+Vern+C%3BNakaba%2C+Rebecca+N&rft.aulast=Dahlgren&rft.aufirst=Robert&rft.date=2014-12-01&rft.volume=104&rft.issue=6&rft.spage=2662&rft.isbn=&rft.btitle=&rft.title=Bulletin+of+the+Seismological+Society+of+America&rft.issn=00371106&rft_id=info:doi/10.1785%2F0120140144 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Abstract, Copyright, Seismological Society of America | Reference includes data from GeoScienceWorld, Alexandria, VA, United States N1 - Date revised - 2015-01-01 N1 - Number of references - 50 N1 - PubXState - CA N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2014-12-31 N1 - CODEN - BSSAAP N1 - SubjectsTermNotLitGenreText - compression; earthquakes; experimental studies; gabbros; igneous rocks; loading; plutonic rocks; pore pressure; saturation; seismic response; seismicity; simulation; stress DO - http://dx.doi.org/10.1785/0120140144 ER - TY - JOUR T1 - Extra-tropical atmospheric response to ENSO in the CMIP5 models AN - 1627973887; 20970894 AB - The seasonal mean extra-tropical atmospheric response to El Nino/Southern Oscillation (ENSO) is assessed in the historical and pre-industrial control CMIP5 simulations. This analysis considers two types of El Nino events, characterized by positive sea surface temperature (SST) anomalies in either the central equatorial Pacific (CP) or eastern equatorial Pacific (EP), as well as EP and CP La Nina events, characterized by negative SST anomalies in the same two regions. Seasonal mean geopotential height anomalies in key regions typify the magnitude and structure of the disruption of the Walker circulation cell in the tropical Pacific, upper tropospheric ENSO teleconnections and the polar stratospheric response. In the CMIP5 ensembles, the magnitude of the Walker cell disruption is correlated with the strength of the mid-latitude responses in the upper troposphere i.e., the North Pacific and South Pacific lows strengthen during El Nino events. The simulated responses to El Nino and La Nina have opposite sign. The seasonal mean extra-tropical, upper tropospheric responses to EP and CP events are indistinguishable. The ENSO responses in the MERRA reanalysis lie within the model scatter of the historical simulations. Similar responses are simulated in the pre-industrial and historical CMIP5 simulations. Overall, there is a weak correlation between the strength of the tropical response to ENSO and the strength of the polar stratospheric response. ENSO-related polar stratospheric variability is best simulated in the "high-top" subset of models with a well-resolved stratosphere. JF - Climate Dynamics AU - Hurwitz, Margaret M AU - Calvo, Natalia AU - Garfinkel, Chaim I AU - Butler, Amy H AU - Ineson, Sarah AU - Cagnazzo, Chiara AU - Manzini, Elisa AU - Pena-Ortiz, Cristina AD - Goddard Earth Sciences Technology and Research (GESTAR), Morgan State University, Baltimore, MD, USA, margaret.m.hurwitz@nasa.gov Y1 - 2014/12// PY - 2014 DA - December 2014 SP - 3367 EP - 3376 PB - Springer Science+Business Media, Van Godewijckstraat 30 Dordrecht 3311 GX Netherlands VL - 43 IS - 12 SN - 0930-7575, 0930-7575 KW - Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts KW - Variability KW - IS, South Pacific KW - La Nina KW - IS, Tropical Pacific KW - Data reanalysis KW - Sea surface temperature anomalies KW - IN, North Pacific KW - El Nino events KW - El Nino KW - IS, Equatorial Pacific KW - Ocean-atmosphere system KW - Walker circulation KW - Sea surface temperatures KW - El Nino phenomena KW - Teleconnections KW - Modelling KW - Marine KW - Climate models KW - Climates KW - Temperature KW - Troposphere KW - Stratosphere KW - Model Studies KW - Southern Oscillation KW - Dynamic height KW - Strength KW - Numerical simulations KW - Geopotential field analysis KW - El Nino-Southern Oscillation event KW - SW 0810:General KW - M2 551.588:Environmental Influences (551.588) KW - Q2 09244:Air-sea coupling UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1627973887?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Climate+Dynamics&rft.atitle=Extra-tropical+atmospheric+response+to+ENSO+in+the+CMIP5+models&rft.au=Hurwitz%2C+Margaret+M%3BCalvo%2C+Natalia%3BGarfinkel%2C+Chaim+I%3BButler%2C+Amy+H%3BIneson%2C+Sarah%3BCagnazzo%2C+Chiara%3BManzini%2C+Elisa%3BPena-Ortiz%2C+Cristina&rft.aulast=Hurwitz&rft.aufirst=Margaret&rft.date=2014-12-01&rft.volume=43&rft.issue=12&rft.spage=3367&rft.isbn=&rft.btitle=&rft.title=Climate+Dynamics&rft.issn=09307575&rft_id=info:doi/10.1007%2Fs00382-014-2110-z LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-11-01 N1 - Number of references - 34 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - El Nino; Ocean-atmosphere system; Troposphere; Stratosphere; Modelling; Dynamic height; Teleconnections; El Nino phenomena; Southern Oscillation; Climate models; La Nina; Data reanalysis; Sea surface temperature anomalies; Numerical simulations; El Nino events; Geopotential field analysis; El Nino-Southern Oscillation event; Sea surface temperatures; Walker circulation; Variability; Strength; Climates; Temperature; Model Studies; IS, South Pacific; IN, North Pacific; IS, Equatorial Pacific; IS, Tropical Pacific; Marine DO - http://dx.doi.org/10.1007/s00382-014-2110-z ER - TY - JOUR T1 - Could giant basin-forming impacts have killed Martian dynamo? AN - 1680751602; 2015-041544 AB - The observed strong remanent crustal magnetization at the surface of Mars suggests an active dynamo in the past and ceased to exist around early to middle Noachian era, estimated by examining remagnetization strengths in extant and buried impact basins. We investigate whether the Martian dynamo could have been killed by these large basin-forming impacts, via numerical simulation of subcritical dynamos with impact-induced thermal heterogeneity across the core-mantle boundary. We find that subcritical dynamos are prone to the impacts centered on locations within 30 degrees of the equator but can easily survive those at higher latitudes. Our results further suggest that magnetic timing places a strong constraint on postimpact polar reorientation, e.g., a minimum 16 degrees polar reorientation is needed if Utopia is the dynamo killer. Abstract Copyright (2014), The Authors. JF - Geophysical Research Letters AU - Kuang, Weijia AU - Jiang, W AU - Roberts, J AU - Frey, Herbert V Y1 - 2014/11/28/ PY - 2014 DA - 2014 Nov 28 SP - 8006 EP - 8012 PB - American Geophysical Union, Washington, DC VL - 41 IS - 22 SN - 0094-8276, 0094-8276 KW - remagnetization KW - Noachian KW - impact features KW - dynamos KW - mantle KW - paleomagnetism KW - Mars KW - core-mantle boundary KW - terrestrial planets KW - outer core KW - lower mantle KW - planets KW - surface features KW - impact craters KW - core KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1680751602?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=Could+giant+basin-forming+impacts+have+killed+Martian+dynamo%3F&rft.au=Kuang%2C+Weijia%3BJiang%2C+W%3BRoberts%2C+J%3BFrey%2C+Herbert+V&rft.aulast=Kuang&rft.aufirst=Weijia&rft.date=2014-11-28&rft.volume=41&rft.issue=22&rft.spage=8006&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1002%2F2014GL061818 L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%291944-8007/issues LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2015-01-01 N1 - Number of references - 34 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2016-10-25 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - core; core-mantle boundary; dynamos; impact craters; impact features; lower mantle; mantle; Mars; Noachian; outer core; paleomagnetism; planets; remagnetization; surface features; terrestrial planets DO - http://dx.doi.org/10.1002/2014GL061818 ER - TY - JOUR T1 - Assessment of SMOS soil moisture retrieval parameters using tau-omega algorithms for soil moisture deficit estimation AN - 1707521079; 2015-083582 AB - Soil Moisture and Ocean Salinity (SMOS) is the latest mission which provides flow of coarse resolution soil moisture data for land applications. However, the efficient retrieval of soil moisture for hydrological applications depends on optimally choosing the soil and vegetation parameters. The first stage of this work involves the evaluation of SMOS Level 2 products and then several approaches for soil moisture retrieval from SMOS brightness temperature are performed to estimate Soil Moisture Deficit (SMD). The most widely applied algorithm i.e. Single channel algorithm (SCA), based on tau -omega is used in this study for the soil moisture retrieval. In tau -omega , the soil moisture is retrieved using the Horizontal (H) polarisation following Hallikainen dielectric model, roughness parameters, Fresnel's equation and estimated Vegetation Optical Depth (tau ). The roughness parameters are empirically calibrated using the numerical optimization techniques. Further to explore the improvement in retrieval models, modifications have been incorporated in the algorithms with respect to the sources of the parameters, which include effective temperatures derived from the European Center for Medium-Range Weather Forecasts (ECMWF) downscaled using the Weather Research and Forecasting (WRF)-NOAH Land Surface Model and Moderate Resolution Imaging Spectroradiometer (MODIS) land surface temperature (LST) while the tau is derived from MODIS Leaf Area Index (LAI). All the evaluations are performed against SMD, which is estimated using the Probability Distributed Model following a careful calibration and validation integrated with sensitivity and uncertainty analysis. The performance obtained after all those changes indicate that SCA-H using WRF-NOAH LSM downscaled ECMWF LST produces an improved performance for SMD estimation at a catchment scale. Abstract Copyright (2014) Elsevier, B.V. JF - Journal of Hydrology AU - Srivastava, Prashant K AU - Han, Dawei AU - Rico Ramirez, Miguel A AU - O'Neill, Peggy AU - Islam, Tanvir AU - Gupta, Manika Y1 - 2014/11/27/ PY - 2014 DA - 2014 Nov 27 SP - 574 EP - 587 PB - Elsevier, Amsterdam VL - 519 IS - Part A SN - 0022-1694, 0022-1694 KW - gauging KW - Fresnel equation KW - moisture KW - rivers and streams KW - England KW - Europe KW - WRF-NOAH model KW - Great Britain KW - temperature KW - Soil Moisture and Ocean Salinity KW - ground water KW - brightness KW - drainage basins KW - probability KW - Brue Basin KW - algorithms KW - soils KW - SMOS KW - Western Europe KW - statistical analysis KW - equations KW - land surface model KW - United Kingdom KW - southwestern England KW - mathematical methods KW - Lovington England KW - tau-omega algorithm KW - remote sensing KW - MODIS KW - 21:Hydrogeology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1707521079?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Hydrology&rft.atitle=Assessment+of+SMOS+soil+moisture+retrieval+parameters+using+tau-omega+algorithms+for+soil+moisture+deficit+estimation&rft.au=Srivastava%2C+Prashant+K%3BHan%2C+Dawei%3BRico+Ramirez%2C+Miguel+A%3BO%27Neill%2C+Peggy%3BIslam%2C+Tanvir%3BGupta%2C+Manika&rft.aulast=Srivastava&rft.aufirst=Prashant&rft.date=2014-11-27&rft.volume=519&rft.issue=Part+A&rft.spage=574&rft.isbn=&rft.btitle=&rft.title=Journal+of+Hydrology&rft.issn=00221694&rft_id=info:doi/10.1016%2Fj.jhydrol.2014.07.056 L2 - http://www.sciencedirect.com/science/journal/00221694 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2015-01-01 N1 - Number of references - 78 N1 - Document feature - illus. incl. 3 tables, sketch maps N1 - Last updated - 2015-11-19 N1 - CODEN - JHYDA7 N1 - SubjectsTermNotLitGenreText - algorithms; brightness; Brue Basin; drainage basins; England; equations; Europe; Fresnel equation; gauging; Great Britain; ground water; land surface model; Lovington England; mathematical methods; MODIS; moisture; probability; remote sensing; rivers and streams; SMOS; Soil Moisture and Ocean Salinity; soils; southwestern England; statistical analysis; tau-omega algorithm; temperature; United Kingdom; Western Europe; WRF-NOAH model DO - http://dx.doi.org/10.1016/j.jhydrol.2014.07.056 ER - TY - JOUR T1 - An integrated modeling system for estimating glacier- and snowmelt-driven streamflow from remote sensing and earth system data products in the Himalayas AN - 1700095569; 2015-072844 AB - Quantification of the contribution of the hydrologic components (snow, ice and rain) to river discharge in the Hindu Kush Himalayan (HKH) region is important for decision-making in water sensitive sectors, and for water resources management and flood risk reduction. In this area, access to and monitoring of the glaciers and their melt outflow is challenging due to difficult access, thus modeling based on remote sensing offers the potential for providing information to improve water resources management and decision making. This paper describes an integrated modeling system developed using downscaled NASA satellite based and earth system data products coupled with in-situ hydrologic data to assess the contribution of snow and glaciers to the flows of the rivers in the HKH region. Snow and glacier melt was estimated using the Utah Energy Balance (UEB) model, further enhanced to accommodate glacier ice melt over clean and debris-covered tongues, then meltwater was input into the USGS Geospatial Stream Flow Model (GeoSFM). The two model components were integrated into Better Assessment Science Integrating point and Nonpoint Sources modeling framework (BASINS) as a user-friendly open source system and was made available to countries in high Asia. Here we present a case study from the Langtang Khola watershed in the monsoon-influenced Nepal Himalaya, used to validate our energy balance approach and to test the applicability of our modeling system. The snow and glacier melt model predicts that for the eight years used for model evaluation (October 2003-September 2010), the total surface water input over the basin was 9.43 m, originating as 62% from glacier melt, 30% from snowmelt and 8% from rainfall. Measured streamflow for those years were 5.02 m, reflecting a runoff coefficient of 0.53. GeoSFM simulated streamflow was 5.31 m indicating reasonable correspondence between measured and model confirming the capability of the integrated system to provide a quantification of water availability. Abstract Copyright (2014) Elsevier, B.V. JF - Journal of Hydrology AU - Brown, M E AU - Racoviteanu, A E AU - Tarboton, D G AU - Gupta, A Sen AU - Nigro, J AU - Policelli, F AU - Habib, S AU - Tokay, M AU - Shrestha, M S AU - Bajracharya, S AU - Hummel, P AU - Gray, M AU - Duda, P AU - Zaitchik, B AU - Mahat, V AU - Artan, G AU - Tokar, S Y1 - 2014/11/27/ PY - 2014 DA - 2014 Nov 27 SP - 1859 EP - 1869 PB - Elsevier, Amsterdam VL - 519 IS - Part B SN - 0022-1694, 0022-1694 KW - GEOSFM model KW - land cover KW - rivers and streams KW - Manas Basin KW - vegetation KW - digital terrain models KW - simulation KW - energy balance KW - Nepal KW - topography KW - Earth Observing System KW - Indian Peninsula KW - BASINS model KW - drainage basins KW - Himalayas KW - ASTER instrument KW - Asia KW - north-central Nepal KW - climate KW - Narayani Basin KW - Better Assessment Science Integrating Point and Nonpoint Sources KW - Shuttle Imaging Radar KW - surface water KW - Jhelum Basin KW - Hindu Kush KW - radar methods KW - glaciers KW - satellite methods KW - Langtang Khola Basin KW - UEBGrid model KW - models KW - streamflow KW - Utah energy balance model KW - remote sensing KW - MODIS KW - meltwater KW - 21:Hydrogeology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1700095569?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Hydrology&rft.atitle=An+integrated+modeling+system+for+estimating+glacier-+and+snowmelt-driven+streamflow+from+remote+sensing+and+earth+system+data+products+in+the+Himalayas&rft.au=Brown%2C+M+E%3BRacoviteanu%2C+A+E%3BTarboton%2C+D+G%3BGupta%2C+A+Sen%3BNigro%2C+J%3BPolicelli%2C+F%3BHabib%2C+S%3BTokay%2C+M%3BShrestha%2C+M+S%3BBajracharya%2C+S%3BHummel%2C+P%3BGray%2C+M%3BDuda%2C+P%3BZaitchik%2C+B%3BMahat%2C+V%3BArtan%2C+G%3BTokar%2C+S&rft.aulast=Brown&rft.aufirst=M&rft.date=2014-11-27&rft.volume=519&rft.issue=Part+B&rft.spage=1859&rft.isbn=&rft.btitle=&rft.title=Journal+of+Hydrology&rft.issn=00221694&rft_id=info:doi/10.1016%2Fj.jhydrol.2014.09.050 L2 - http://www.sciencedirect.com/science/journal/00221694 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2015-01-01 N1 - Number of references - 70 N1 - Document feature - illus. incl. 3 tables, sketch maps N1 - Last updated - 2015-11-19 N1 - CODEN - JHYDA7 N1 - SubjectsTermNotLitGenreText - Asia; ASTER instrument; Better Assessment Science Integrating Point and Nonpoint Sources; climate; digital terrain models; drainage basins; Earth Observing System; energy balance; GEOSFM model; glaciers; Himalayas; Hindu Kush; Indian Peninsula; Jhelum Basin; land cover; Langtang Khola Basin; Manas Basin; meltwater; models; MODIS; Narayani Basin; Nepal; north-central Nepal; radar methods; remote sensing; rivers and streams; satellite methods; Shuttle Imaging Radar; simulation; streamflow; surface water; topography; UEBGrid model; Utah energy balance model; vegetation; BASINS model DO - http://dx.doi.org/10.1016/j.jhydrol.2014.09.050 ER - TY - NEWS T1 - Pluto's Exotic Chemistry AN - 1627776854 JF - UPI Space Daily AU - Reggie Hudson - NASA Research Scientist Y1 - 2014/11/25/ PY - 2014 DA - 2014 Nov 25 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1627776854?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apqrl&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=UPI+Space+Daily&rft.atitle=Pluto%27s+Exotic+Chemistry&rft.au=Reggie+Hudson+-+NASA+Research+Scientist&rft.aulast=Reggie+Hudson+-+NASA+Research+Scientist&rft.aufirst=&rft.date=2014-11-25&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=UPI+Space+Daily&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Central N1 - Copyright - Copyright (c) by United Press International. All Rights Reserved. N1 - Last updated - 2014-11-25 ER - TY - CPAPER T1 - Mechanical and Thermal Properties of Cross-Linked Phenolic Resins Using Molecular Dynamics T2 - 2014 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2014) AN - 1627973552; 6312120 JF - 2014 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2014) AU - Lawson, John AU - Monk, Joshua AU - Haskins, Justin AU - Bauschlicher Jr, Charles Y1 - 2014/11/16/ PY - 2014 DA - 2014 Nov 16 KW - Resins KW - phenolic compounds UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1627973552?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2014+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2014%29&rft.atitle=Mechanical+and+Thermal+Properties+of+Cross-Linked+Phenolic+Resins+Using+Molecular+Dynamics&rft.au=Lawson%2C+John%3BMonk%2C+Joshua%3BHaskins%2C+Justin%3BBauschlicher+Jr%2C+Charles&rft.aulast=Lawson&rft.aufirst=John&rft.date=2014-11-16&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2014+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2014%29&rft.issn=&rft_id=info:doi/ L2 - https://aiche.confex.com/aiche/2014/webprogram/meeting2014-11-16.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-10-31 N1 - Last updated - 2014-11-26 ER - TY - CPAPER T1 - Modeling the Formation and Function of Responsive Peptide Systems T2 - 2014 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2014) AN - 1627964228; 6310576 JF - 2014 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2014) AU - Hsieh, Ming-Chien AU - Chen, Chenrui AU - Tan, Junjun AU - Omosun, Tolu AU - Mehta, Anil AU - Lynn, David AU - Grover, Martha Y1 - 2014/11/16/ PY - 2014 DA - 2014 Nov 16 KW - Peptides UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1627964228?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2014+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2014%29&rft.atitle=Modeling+the+Formation+and+Function+of+Responsive+Peptide+Systems&rft.au=Hsieh%2C+Ming-Chien%3BChen%2C+Chenrui%3BTan%2C+Junjun%3BOmosun%2C+Tolu%3BMehta%2C+Anil%3BLynn%2C+David%3BGrover%2C+Martha&rft.aulast=Hsieh&rft.aufirst=Ming-Chien&rft.date=2014-11-16&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2014+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2014%29&rft.issn=&rft_id=info:doi/ L2 - https://aiche.confex.com/aiche/2014/webprogram/meeting2014-11-16.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-10-31 N1 - Last updated - 2014-11-26 ER - TY - CPAPER T1 - Investigation of Structure and Transport in Li-Doped Ionic Liquid Electrolytes: [pyr14][Tfsi], [pyr13][Fsi], and [EMIM][BF4] T2 - 2014 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2014) AN - 1627959081; 6308686 JF - 2014 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2014) AU - Haskins, Justin AU - Bennett, William AU - Wu, James AU - Hernandez, Dionne AU - Borodin, Oleg AU - Monk, Joshua AU - Bauschlicher Jr, Charles AU - Lawson, John Y1 - 2014/11/16/ PY - 2014 DA - 2014 Nov 16 KW - Electrolytes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1627959081?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2014+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2014%29&rft.atitle=Investigation+of+Structure+and+Transport+in+Li-Doped+Ionic+Liquid+Electrolytes%3A+%5Bpyr14%5D%5BTfsi%5D%2C+%5Bpyr13%5D%5BFsi%5D%2C+and+%5BEMIM%5D%5BBF4%5D&rft.au=Haskins%2C+Justin%3BBennett%2C+William%3BWu%2C+James%3BHernandez%2C+Dionne%3BBorodin%2C+Oleg%3BMonk%2C+Joshua%3BBauschlicher+Jr%2C+Charles%3BLawson%2C+John&rft.aulast=Haskins&rft.aufirst=Justin&rft.date=2014-11-16&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2014+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2014%29&rft.issn=&rft_id=info:doi/ L2 - https://aiche.confex.com/aiche/2014/webprogram/meeting2014-11-16.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-10-31 N1 - Last updated - 2014-11-26 ER - TY - JOUR T1 - Illumination conditions at the lunar south pole using high resolution digital terrain models from LOLA AN - 1696877949; 2015-069056 JF - Icarus AU - Glaeser, Philipp AU - Scholten, F AU - De Rosa, D AU - Figuera, R Marco AU - Oberst, J AU - Mazarico, E AU - Neumann, G A AU - Robinson, Mark S Y1 - 2014/11/15/ PY - 2014 DA - 2014 Nov 15 SP - 78 EP - 90 PB - Elsevier, New York, NY VL - 243 SN - 0019-1035, 0019-1035 KW - Lunar Orbiter Laser Altimeter KW - surface properties KW - polar regions KW - Moon KW - slopes KW - Shackleton Crater KW - de Gerlache Crater KW - mapping KW - precession KW - landing sites KW - digital terrain models KW - simulation KW - topography KW - Shackleton Rim KW - permanently shadowed regions KW - solar illumination KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1696877949?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Icarus&rft.atitle=Illumination+conditions+at+the+lunar+south+pole+using+high+resolution+digital+terrain+models+from+LOLA&rft.au=Glaeser%2C+Philipp%3BScholten%2C+F%3BDe+Rosa%2C+D%3BFiguera%2C+R+Marco%3BOberst%2C+J%3BMazarico%2C+E%3BNeumann%2C+G+A%3BRobinson%2C+Mark+S&rft.aulast=Glaeser&rft.aufirst=Philipp&rft.date=2014-11-15&rft.volume=243&rft.issue=&rft.spage=78&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2014.08.013 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. N1 - Date revised - 2015-01-01 N1 - Number of references - 25 N1 - PubXState - NY N1 - Document feature - illus. incl. 1 table, sketch maps N1 - Last updated - 2015-07-17 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - de Gerlache Crater; digital terrain models; landing sites; Lunar Orbiter Laser Altimeter; mapping; Moon; permanently shadowed regions; polar regions; precession; Shackleton Crater; Shackleton Rim; simulation; slopes; solar illumination; surface properties; topography DO - http://dx.doi.org/10.1016/j.icarus.2014.08.013 ER - TY - JOUR T1 - The Miniature Radio Frequency Instrument's (Mini-RF) global observations of Earth's Moon AN - 1696877321; 2015-069063 JF - Icarus AU - Cahill, Joshua T S AU - Thomson, B J AU - Patterson, G Wesley AU - Bussey, D Benjamin J AU - Neish, Catherine D AU - Lopez, Norberto R AU - Turner, F Scott AU - Aldridge, T AU - McAdam, M AU - Meyer, H M AU - Raney, R K AU - Carter, L M AU - Spudis, P D AU - Hiesinger, H AU - Pasckert, J H Y1 - 2014/11/15/ PY - 2014 DA - 2014 Nov 15 SP - 173 EP - 190 PB - Elsevier, New York, NY VL - 243 SN - 0019-1035, 0019-1035 KW - Nearside Radar Dark Terrane KW - Procellarum KREEP terrane KW - Miniature Radio Frequency Instrument KW - Moon KW - Lunar Reconnaissance Orbiter KW - Mare Orientale KW - roughness KW - Lunar Prospector Program KW - radar methods KW - Mini-RF KW - Orientale Impact Basin Terrane KW - mapping KW - terranes KW - lunar highlands KW - depth KW - South Pole-Aitken Basin KW - Feldspathic Highlands Terrane KW - physical properties KW - KREEP KW - Clementine Program KW - orbital observations KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1696877321?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Icarus&rft.atitle=The+Miniature+Radio+Frequency+Instrument%27s+%28Mini-RF%29+global+observations+of+Earth%27s+Moon&rft.au=Cahill%2C+Joshua+T+S%3BThomson%2C+B+J%3BPatterson%2C+G+Wesley%3BBussey%2C+D+Benjamin+J%3BNeish%2C+Catherine+D%3BLopez%2C+Norberto+R%3BTurner%2C+F+Scott%3BAldridge%2C+T%3BMcAdam%2C+M%3BMeyer%2C+H+M%3BRaney%2C+R+K%3BCarter%2C+L+M%3BSpudis%2C+P+D%3BHiesinger%2C+H%3BPasckert%2C+J+H&rft.aulast=Cahill&rft.aufirst=Joshua+T&rft.date=2014-11-15&rft.volume=243&rft.issue=&rft.spage=173&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2014.07.018 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. N1 - Date revised - 2015-01-01 N1 - Number of references - 67 N1 - PubXState - NY N1 - Document feature - illus. incl. sketch maps N1 - Last updated - 2015-07-17 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - Clementine Program; depth; Feldspathic Highlands Terrane; KREEP; lunar highlands; Lunar Prospector Program; Lunar Reconnaissance Orbiter; mapping; Mare Orientale; Mini-RF; Miniature Radio Frequency Instrument; Moon; Nearside Radar Dark Terrane; orbital observations; Orientale Impact Basin Terrane; physical properties; Procellarum KREEP terrane; radar methods; roughness; South Pole-Aitken Basin; terranes DO - http://dx.doi.org/10.1016/j.icarus.2014.07.018 ER - TY - JOUR T1 - Comparative estimates of the heat generated by ocean tides on icy satellites in the outer solar system AN - 1696877022; 2015-069073 JF - Icarus AU - Tyler, Robert Y1 - 2014/11/15/ PY - 2014 DA - 2014 Nov 15 SP - 358 EP - 385 PB - Elsevier, New York, NY VL - 243 SN - 0019-1035, 0019-1035 KW - solar system KW - icy satellites KW - ocean circulation KW - obliquity of the ecliptic KW - Europa Satellite KW - outer solar system KW - Ganymede Satellite KW - Io Satellite KW - ice cover KW - Galilean satellites KW - freezing KW - eccentricity KW - tides KW - ocean basins KW - resonance KW - Callisto Satellite KW - dynamics KW - Titan Satellite KW - heating KW - Enceladus Satellite KW - satellites KW - Mimas Satellite KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1696877022?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Icarus&rft.atitle=Comparative+estimates+of+the+heat+generated+by+ocean+tides+on+icy+satellites+in+the+outer+solar+system&rft.au=Tyler%2C+Robert&rft.aulast=Tyler&rft.aufirst=Robert&rft.date=2014-11-15&rft.volume=243&rft.issue=&rft.spage=358&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2014.08.037 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. N1 - Date revised - 2015-01-01 N1 - Number of references - 59 N1 - PubXState - NY N1 - Document feature - illus. N1 - SuppNotes - Includes appendices N1 - Last updated - 2015-11-19 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - Callisto Satellite; dynamics; eccentricity; Enceladus Satellite; Europa Satellite; freezing; Galilean satellites; Ganymede Satellite; heating; ice cover; icy satellites; Io Satellite; Mimas Satellite; obliquity of the ecliptic; ocean circulation; ocean basins; outer solar system; resonance; satellites; solar system; tides; Titan Satellite DO - http://dx.doi.org/10.1016/j.icarus.2014.08.037 ER - TY - JOUR T1 - Initial results from radio occultation measurements with the Mars Reconnaissance Orbiter; a nocturnal mixed layer in the tropics and comparisons with polar profiles from the Mars Climate Sounder AN - 1696876701; 2015-069057 JF - Icarus AU - Hinson, David P AU - Asmar, Sami W AU - Kahan, Daniel S AU - Akopian, Varoujan AU - Haberle, Robert M AU - Spiga, Aymeric AU - Schofield, John T AU - Kleinboehl, Armin AU - Abdou, Wedad A AU - Lewis, Stephen R AU - Paik, Meegyeong AU - Maalouf, Sami G Y1 - 2014/11/15/ PY - 2014 DA - 2014 Nov 15 SP - 91 EP - 103 PB - Elsevier, New York, NY VL - 243 SN - 0019-1035, 0019-1035 KW - altitude KW - Mars KW - simulation KW - temperature KW - ice caps KW - Gale Crater KW - carbon dioxide KW - occultation KW - ice KW - radio-wave methods KW - orbital observations KW - diurnal variations KW - climate KW - clouds KW - general circulation models KW - numerical models KW - cyclic processes KW - Mars Climate Sounder KW - atmosphere KW - Mars Reconnaissance Orbiter KW - terrestrial planets KW - planets KW - eddies KW - atmospheric pressure KW - aerosols KW - seasonal variations KW - Tharsis KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1696876701?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Icarus&rft.atitle=Initial+results+from+radio+occultation+measurements+with+the+Mars+Reconnaissance+Orbiter%3B+a+nocturnal+mixed+layer+in+the+tropics+and+comparisons+with+polar+profiles+from+the+Mars+Climate+Sounder&rft.au=Hinson%2C+David+P%3BAsmar%2C+Sami+W%3BKahan%2C+Daniel+S%3BAkopian%2C+Varoujan%3BHaberle%2C+Robert+M%3BSpiga%2C+Aymeric%3BSchofield%2C+John+T%3BKleinboehl%2C+Armin%3BAbdou%2C+Wedad+A%3BLewis%2C+Stephen+R%3BPaik%2C+Meegyeong%3BMaalouf%2C+Sami+G&rft.aulast=Hinson&rft.aufirst=David&rft.date=2014-11-15&rft.volume=243&rft.issue=&rft.spage=91&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2014.09.019 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. N1 - Date revised - 2015-01-01 N1 - Number of references - 52 N1 - PubXState - NY N1 - Document feature - illus. incl. 1 table, sketch map N1 - Last updated - 2015-07-17 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - aerosols; altitude; atmosphere; atmospheric pressure; carbon dioxide; climate; clouds; cyclic processes; diurnal variations; eddies; Gale Crater; general circulation models; ice; ice caps; Mars; Mars Climate Sounder; Mars Reconnaissance Orbiter; numerical models; occultation; orbital observations; planets; radio-wave methods; seasonal variations; simulation; temperature; terrestrial planets; Tharsis DO - http://dx.doi.org/10.1016/j.icarus.2014.09.019 ER - TY - JOUR T1 - Infrared spectra and optical constants of astronomical ices; II, Ethane and ethylene AN - 1696875644; 2015-069061 JF - Icarus AU - Hudson, R L AU - Gerakines, P A AU - Moore, M H Y1 - 2014/11/15/ PY - 2014 DA - 2014 Nov 15 SP - 148 EP - 157 PB - Elsevier, New York, NY VL - 243 SN - 0019-1035, 0019-1035 KW - near-infrared spectra KW - trans-Neptunian objects KW - aliphatic hydrocarbons KW - ethane KW - alkanes KW - dwarf planets KW - temperature KW - infrared spectra KW - organic compounds KW - ethylene KW - optical constant KW - ice KW - alkenes KW - hydrocarbons KW - spectra KW - refractive index KW - Pluto KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1696875644?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Icarus&rft.atitle=Infrared+spectra+and+optical+constants+of+astronomical+ices%3B+II%2C+Ethane+and+ethylene&rft.au=Hudson%2C+R+L%3BGerakines%2C+P+A%3BMoore%2C+M+H&rft.aulast=Hudson&rft.aufirst=R&rft.date=2014-11-15&rft.volume=243&rft.issue=&rft.spage=148&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2014.09.001 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. N1 - Date revised - 2015-01-01 N1 - Number of references - 34 N1 - PubXState - NY N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2015-07-17 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; alkenes; dwarf planets; ethane; ethylene; hydrocarbons; ice; infrared spectra; near-infrared spectra; optical constant; organic compounds; Pluto; refractive index; spectra; temperature; trans-Neptunian objects DO - http://dx.doi.org/10.1016/j.icarus.2014.09.001 ER - TY - RPRT T1 - TIER 2-MARS 2020 MISSION, WASHINGTON DC. AN - 1701285720; 16318 AB - PURPOSE: This Final Environmental Impact Statement (FEIS) has been prepared by the National Aeronautics and Space Administration (NASA) in accordance with the National Environmental Policy Act (NEPA) of 1969, as amended, to assist in the decision-making process for the proposed Mars 2020 mission. This Environmental Impact Statement (EIS) is a tiered document (Tier 2 EIS) under NASAs Programmatic EIS for the Mars Exploration Program. The Proposed Action addressed in this FEIS is to continue preparations for and implementation of the Mars 2020 mission. The Mars 2020 spacecraft would be launched on an expendable launch vehicle during a launch opportunity from July through August 2020. The Mars 2020 spacecraft would deliver a large, mobile science laboratory (rover) with advanced instrumentation to a scientifically interesting location on the surface of Mars early in 2021. The design of the Mars 2020 spacecraft and rover would be based upon and similar to that used in the 2011 Mars Science Laboratory Mission, including the use of a Multi-Mission Radioisotope Thermoelectric Generator. The purpose of the Mars 2020 mission would be to continue NASAs in-depth exploration of Mars. The mission described by the Mars 2020 Science Definition Team Report provides a basis for the proposed Mars 2020 mission, recommending it consist of a science-focused, highly mobile rover designed to explore and investigate in detail a site on Mars that was likely once habitable. The mission concept includes new scientific instrumentation designed to seek signs of past life in situ. This instrumentation would be used to select a suite of samples that would be stored in a sealable cache that could be returned to Earth by a future mission. The mission would also demonstrate new technology for future exploration of Mars (both robotic and human missions). JF - EPA number: 140324, Second Final EIS (Tiering, November 14, 2014 PY - 2014 KW - Research and Development KW - Aerospace KW - International Programs KW - Research KW - Radioactive Substances KW - Military Facilities (Air Force) KW - Spacecraft KW - Solar Energy KW - Air Quality KW - Mars KW - Florida KW - Kennedy Space Center KW - Cape Canaveral Air Force Station KW - Executive Order 12114, Compliance KW - Clean Air Act Amendments of 1990, Emission Standards KW - Marine Mammal Protection Act of 1972, Compliance KW - Magnuson Fishery Conservation and Management Act of 1976, Compliance UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1701285720?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/Environmental+Impact+Statements%3A+Digests&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=report&rft.jtitle=&rft.atitle=&rft.au=&rft.aulast=&rft.aufirst=&rft.date=2014-11-14&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=TIER+2-MARS+2020+MISSION%2C+WASHINGTON+DC.&rft.title=TIER+2-MARS+2020+MISSION%2C+WASHINGTON+DC.&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Name - National Aeronautics and Space Administration, Science Mission Directorate, Washington, DC N1 - Date revised - 2015-08-01 N1 - SuppNotes - Final. Preparation date: November 14, 2014 N1 - Last updated - 2015-08-05 ER - TY - CPAPER T1 - Modeling Damage in Textile Composites Using Meso- and Microscale Approaches T2 - 2014 International Mechanical Engineering Congress & Exposition (ASME 2014) AN - 1645173314; 6315147 JF - 2014 International Mechanical Engineering Congress & Exposition (ASME 2014) AU - Bednarcyk, Brett AU - Stier, Bertram AU - Pineda, Evan AU - Simon, Jaan AU - Reese, Stefanie Y1 - 2014/11/14/ PY - 2014 DA - 2014 Nov 14 KW - Composite materials KW - Textiles UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1645173314?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2014+International+Mechanical+Engineering+Congress+%26+Exposition+%28ASME+2014%29&rft.atitle=Modeling+Damage+in+Textile+Composites+Using+Meso-+and+Microscale+Approaches&rft.au=Bednarcyk%2C+Brett%3BStier%2C+Bertram%3BPineda%2C+Evan%3BSimon%2C+Jaan%3BReese%2C+Stefanie&rft.aulast=Bednarcyk&rft.aufirst=Brett&rft.date=2014-11-14&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2014+International+Mechanical+Engineering+Congress+%26+Exposition+%28ASME+2014%29&rft.issn=&rft_id=info:doi/ L2 - http://www.asmeconferences.org/Congress2014/ViewAcceptedAbstracts.cfm LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-11-30 N1 - Last updated - 2015-01-14 ER - TY - CPAPER T1 - Sound Transmission Loss Through a Corrugated-Core Sandwich Panel with Integrated Acoustic Resonators T2 - 2014 International Mechanical Engineering Congress & Exposition (ASME 2014) AN - 1645169407; 6315693 JF - 2014 International Mechanical Engineering Congress & Exposition (ASME 2014) AU - Schiller, Noah AU - Allen, Albert AU - Zalewski, Bart AU - Beck, Benjamin Y1 - 2014/11/14/ PY - 2014 DA - 2014 Nov 14 KW - Acoustics KW - Sound KW - Sound transmission UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1645169407?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2014+International+Mechanical+Engineering+Congress+%26+Exposition+%28ASME+2014%29&rft.atitle=Sound+Transmission+Loss+Through+a+Corrugated-Core+Sandwich+Panel+with+Integrated+Acoustic+Resonators&rft.au=Schiller%2C+Noah%3BAllen%2C+Albert%3BZalewski%2C+Bart%3BBeck%2C+Benjamin&rft.aulast=Schiller&rft.aufirst=Noah&rft.date=2014-11-14&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2014+International+Mechanical+Engineering+Congress+%26+Exposition+%28ASME+2014%29&rft.issn=&rft_id=info:doi/ L2 - http://www.asmeconferences.org/Congress2014/ViewAcceptedAbstracts.cfm LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-11-30 N1 - Last updated - 2015-01-14 ER - TY - CPAPER T1 - NIAC: the most visionary and far-reaching program in NASA T2 - 2014 International Mechanical Engineering Congress & Exposition (ASME 2014) AN - 1645166876; 6315547 JF - 2014 International Mechanical Engineering Congress & Exposition (ASME 2014) AU - Falker, Jay Y1 - 2014/11/14/ PY - 2014 DA - 2014 Nov 14 KW - Mechanical engineering UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1645166876?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2014+International+Mechanical+Engineering+Congress+%26+Exposition+%28ASME+2014%29&rft.atitle=NIAC%3A+the+most+visionary+and+far-reaching+program+in+NASA&rft.au=Falker%2C+Jay&rft.aulast=Falker&rft.aufirst=Jay&rft.date=2014-11-14&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2014+International+Mechanical+Engineering+Congress+%26+Exposition+%28ASME+2014%29&rft.issn=&rft_id=info:doi/ L2 - http://www.asmeconferences.org/Congress2014/ViewAcceptedAbstracts.cfm LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-11-30 N1 - Last updated - 2015-01-14 ER - TY - JOUR T1 - Southern Laurentide ice-sheet retreat synchronous with rising boreal summer insolation AN - 1637541936; 2014-102425 AB - Establishing the precise timing for the onset of ice-sheet retreat at the end of the Last Glacial Maximum (LGM) is critical for delineating mechanisms that drive deglaciations. Uncertainties in the timing of ice-margin retreat and global ice-volume change allow a variety of plausible deglaciation triggers. Using boulder (super 10) Be surface exposure ages, we date initial southern Laurentide ice-sheet (LIS) retreat from LGM moraines in Wisconsin (USA) to 23.0 + or - 0.6 ka, coincident with retreat elsewhere along the southern LIS and synchronous with the initial rise in boreal summer insolation 24-23 ka. We show with climate-surface mass balance simulations that this small increase in boreal summer insolation alone is potentially sufficient to drive enhanced southern LIS surface ablation. We also date increased southern LIS retreat after ca. 20.5 ka likely driven by an acceleration in rising isolation. This near-instantaneous southern LIS response to boreal summer insolation before any rise in atmospheric CO (sub 2) supports the Milankovic hypothesis of orbital forcing of deglaciations. JF - Geology (Boulder) AU - Ullman, David J AU - Carlson, Anders E AU - LeGrande, Allegra N AU - Anslow, Faron S AU - Moore, Angus K AU - Caffee, Marc AU - Syverson, Kent M AU - Licciardi, Joseph M Y1 - 2014/11/14/ PY - 2014 DA - 2014 Nov 14 SP - 23 EP - 26 PB - Geological Society of America (GSA), Boulder, CO VL - 43 IS - 1 SN - 0091-7613, 0091-7613 KW - United States KW - Laurentide ice sheet KW - last glacial maximum KW - isotopes KW - paleoclimatology KW - exposure age KW - deglaciation KW - upper Pleistocene KW - orbital forcing KW - Cenozoic KW - radioactive isotopes KW - terminal moraines KW - sediments KW - moraines KW - Wisconsin KW - climate forcing KW - alkaline earth metals KW - boulders KW - Quaternary KW - Be-10 KW - clastic sediments KW - end moraines KW - metals KW - Milankovitch theory KW - Pleistocene KW - insolation KW - beryllium KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1637541936?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geology+%28Boulder%29&rft.atitle=Southern+Laurentide+ice-sheet+retreat+synchronous+with+rising+boreal+summer+insolation&rft.au=Ullman%2C+David+J%3BCarlson%2C+Anders+E%3BLeGrande%2C+Allegra+N%3BAnslow%2C+Faron+S%3BMoore%2C+Angus+K%3BCaffee%2C+Marc%3BSyverson%2C+Kent+M%3BLicciardi%2C+Joseph+M&rft.aulast=Ullman&rft.aufirst=David&rft.date=2014-11-14&rft.volume=43&rft.issue=1&rft.spage=23&rft.isbn=&rft.btitle=&rft.title=Geology+%28Boulder%29&rft.issn=00917613&rft_id=info:doi/10.1130%2FG36179.1 L2 - http://www.gsajournals.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data from GeoScienceWorld, Alexandria, VA, United States | Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2014-01-01 N1 - Number of references - 23 N1 - PubXState - CO N1 - Document feature - illus. incl. geol. sketch map N1 - SuppNotes - GSA Data Repository item 2015024 N1 - Last updated - 2015-01-15 N1 - CODEN - GLGYBA N1 - SubjectsTermNotLitGenreText - alkaline earth metals; Be-10; beryllium; boulders; Cenozoic; clastic sediments; climate forcing; deglaciation; end moraines; exposure age; insolation; isotopes; last glacial maximum; Laurentide ice sheet; metals; Milankovitch theory; moraines; orbital forcing; paleoclimatology; Pleistocene; Quaternary; radioactive isotopes; sediments; terminal moraines; United States; upper Pleistocene; Wisconsin DO - http://dx.doi.org/10.1130/G36179.1 ER - TY - JOUR T1 - Spatial variability in photosynthetic and heterotrophic activity drives localized delta (super 13) C (sub org) fluctuations and carbonate precipitation in hypersaline microbial mats AN - 1707523148; 2015-081183 AB - Modern laminated photosynthetic microbial mats are ideal environments to study how microbial activity creates and modifies carbon and sulfur isotopic signatures prior to lithification. Laminated microbial mats from a hypersaline lagoon (Guerrero Negro, Baja California, Mexico) maintained in a flume in a greenhouse at NASA Ames Research Center were sampled for delta (super 13) C of organic material and carbonate to assess the impact of carbon fixation (e.g., photosynthesis) and decomposition (e.g., bacterial respiration) on delta (super 13) C signatures. In the photic zone, the delta (super 13) C (sub org) signature records a complex relationship between the activities of cyanobacteria under variable conditions of CO (sub 2) limitation with a significant contribution from green sulfur bacteria using the reductive TCA cycle for carbon fixation. Carbonate is present in some layers of the mat, associated with high concentrations of bacteriochlorophyll e (characteristic of green sulfur bacteria) and exhibits delta (super 13) C signatures similar to DIC in the overlying water column (-2.0 ppm), with small but variable decreases consistent with localized heterotrophic activity from sulfate-reducing bacteria (SRB). Model results indicate respiration rates in the upper 12 mm of the mat alter in situ pH and HCO (super -) (sub 3) concentrations to create both phototrophic CO (sub 2) limitation and carbonate supersaturation, leading to local precipitation of carbonate minerals. The measured activity of SRB with depth suggests they variably contribute to decomposition in the mat dependent on organic substrate concentrations. Millimeter-scale variability in the delta (super 13) C (sub org) signature beneath the photic zone in the mat is a result of shifting dominance between cyanobacteria and green sulfur bacteria with the aggregate signature overprinted by heterotrophic reworking by SRB and methanogens. These observations highlight the impact of sedimentary microbial processes on delta (super 13) C (sub org) signatures; these processes need to be considered when attempting to relate observed isotopic signatures in ancient sedimentary strata to conditions in the overlying water column at the time of deposition and associated inferences about carbon cycling. Abstract Copyright (2010), John Wiley & Sons, Ltd. JF - Geobiology AU - Houghton, J AU - Fike, D AU - Druschel, G AU - Orphan, V AU - Hoehler, T M AU - Des Marais, D J Y1 - 2014/11// PY - 2014 DA - November 2014 SP - 557 EP - 574 PB - Wiley, Oxford VL - 12 IS - 6 SN - 1472-4677, 1472-4677 KW - photosynthesis KW - isotopes KW - microbial mats KW - stable isotopes KW - laboratory studies KW - Guerrero Negro Mexico KW - carbon KW - organic carbon KW - chemical composition KW - sedimentary structures KW - hypersaline environment KW - cyanobacteria KW - experimental studies KW - numerical models KW - living taxa KW - pigments KW - isotope ratios KW - biogenic structures KW - C-13/C-12 KW - photochemistry KW - geochemical cycle KW - Mexico KW - Baja California Sur Mexico KW - precipitation KW - bacteria KW - lacustrine environment KW - carbon cycle KW - carbonates KW - 06A:Sedimentary petrology KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1707523148?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geobiology&rft.atitle=Spatial+variability+in+photosynthetic+and+heterotrophic+activity+drives+localized+delta+%28super+13%29+C+%28sub+org%29+fluctuations+and+carbonate+precipitation+in+hypersaline+microbial+mats&rft.au=Houghton%2C+J%3BFike%2C+D%3BDruschel%2C+G%3BOrphan%2C+V%3BHoehler%2C+T+M%3BDes+Marais%2C+D+J&rft.aulast=Houghton&rft.aufirst=J&rft.date=2014-11-01&rft.volume=12&rft.issue=6&rft.spage=557&rft.isbn=&rft.btitle=&rft.title=Geobiology&rft.issn=14724677&rft_id=info:doi/10.1111%2Fgbi.12113 L2 - http://www.blackwellpublishing.com/journal.asp?ref=1472-4677 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2015-01-01 N1 - Number of references - 75 N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - NSF grants EAR-1124389, EAR-1123391, EAR-1304352, and EAR-1261423 N1 - Last updated - 2015-08-27 N1 - SubjectsTermNotLitGenreText - bacteria; Baja California Sur Mexico; biogenic structures; C-13/C-12; carbon; carbon cycle; carbonates; chemical composition; cyanobacteria; experimental studies; geochemical cycle; Guerrero Negro Mexico; hypersaline environment; isotope ratios; isotopes; laboratory studies; lacustrine environment; living taxa; Mexico; microbial mats; numerical models; organic carbon; photochemistry; photosynthesis; pigments; precipitation; sedimentary structures; stable isotopes DO - http://dx.doi.org/10.1111/gbi.12113 ER - TY - JOUR T1 - Evidence for middle Amazonian catastrophic flooding and glaciation on Mars AN - 1696877081; 2015-069038 JF - Icarus AU - Rodriguez, J Alexis P AU - Gulick, Virginia C AU - Baker, Victor R AU - Platz, Thomas AU - Fairen, Alberto G AU - Miyamoto, Hideaki AU - Kargel, Jeffrey S AU - Rice, James W AU - Glines, Natalie Y1 - 2014/11/01/ PY - 2014 DA - 2014 Nov 01 SP - 202 EP - 210 PB - Elsevier, New York, NY VL - 242 SN - 0019-1035, 0019-1035 KW - impact features KW - glaciation KW - erosion KW - Mars KW - mapping KW - landforms KW - outflow channels KW - debris flows KW - Context Camera KW - paleoclimatology KW - Amazonian KW - mass movements KW - floods KW - HiRISE KW - Chryse Planitia KW - Mars Reconnaissance Orbiter KW - glacial features KW - canyons KW - bedforms KW - High Resolution Imaging Science Experiment KW - terrestrial planets KW - morphology KW - planets KW - impact craters KW - remote sensing KW - catastrophes KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1696877081?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Icarus&rft.atitle=Evidence+for+middle+Amazonian+catastrophic+flooding+and+glaciation+on+Mars&rft.au=Rodriguez%2C+J+Alexis+P%3BGulick%2C+Virginia+C%3BBaker%2C+Victor+R%3BPlatz%2C+Thomas%3BFairen%2C+Alberto+G%3BMiyamoto%2C+Hideaki%3BKargel%2C+Jeffrey+S%3BRice%2C+James+W%3BGlines%2C+Natalie&rft.aulast=Rodriguez&rft.aufirst=J+Alexis&rft.date=2014-11-01&rft.volume=242&rft.issue=&rft.spage=202&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2014.06.008 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. N1 - Date revised - 2015-01-01 N1 - Number of references - 54 N1 - PubXState - NY N1 - Document feature - illus. incl. 2 tables, sketch maps N1 - SuppNotes - Includes appendices N1 - Last updated - 2015-07-17 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - Amazonian; bedforms; canyons; catastrophes; Chryse Planitia; Context Camera; debris flows; erosion; floods; glacial features; glaciation; High Resolution Imaging Science Experiment; HiRISE; impact craters; impact features; landforms; mapping; Mars; Mars Reconnaissance Orbiter; mass movements; morphology; outflow channels; paleoclimatology; planets; remote sensing; terrestrial planets DO - http://dx.doi.org/10.1016/j.icarus.2014.06.008 ER - TY - JOUR T1 - Presolar grains in the CM2 chondrite Sutter's Mill AN - 1692744621; 2015-059957 AB - The Sutter's Mill (SM) carbonaceous chondrite is a regolith breccia, composed predominantly of CM2 clasts with varying degrees of aqueous alteration and thermal metamorphism. An investigation of presolar grains in four Sutter's Mill sections, SM43, SM51, SM2-4, and SM18, was carried out using NanoSIMS ion mapping technique. A total of 37 C-anomalous grains and one O-anomalous grain have been identified, indicating an abundance of 63 ppm for presolar C-anomalous grains and 2 ppm for presolar oxides. Thirty-one silicon carbide (SiC), five carbonaceous grains, and one Al-oxide (Al (sub 2) O (sub 3) ) were confirmed based on their elemental compositions determined by C-N-Si and O-Si-Mg-Al isotopic measurements. The overall abundance of SiC grains in Sutter's Mill (55 ppm) is consistent with those in other CM chondrites. The absence of presolar silicates in Sutter's Mill suggests that they were destroyed by aqueous alteration on the parent asteroid. Furthermore, SM2-4 shows heterogeneous distributions of presolar SiC grains (12-54 ppm) in different matrix areas, indicating that the fine-grained matrix clasts come from different sources, with various thermal histories, in the solar nebula. Abstract Copyright The Meteoritical Society, 2014. JF - Meteoritics & Planetary Science AU - Zhao, Xuchao AU - Lin, Yangting AU - Yin, Qing-Zhu AU - Zhang, Jianchao AU - Hao, Jialong AU - Zolensky, Michael AU - Jenniskens, Peter Y1 - 2014/11// PY - 2014 DA - November 2014 SP - 2038 EP - 2046 PB - Meteoritical Society, Fayetteville, AR VL - 49 IS - 11 SN - 1086-9379, 1086-9379 KW - stony meteorites KW - ion probe data KW - isotopes KW - mass spectra KW - carbides KW - thermal history KW - silicon KW - stable isotopes KW - nitrogen KW - meteorites KW - presolar grains KW - carbon KW - alloys KW - spectra KW - heterogeneity KW - chondrites KW - N-15/N-14 KW - Si-29/Si-28 KW - isotope ratios KW - parent bodies KW - C-13/C-12 KW - Sutter's Mill Meteorite KW - anomalies KW - thermal metamorphism KW - carbonaceous chondrites KW - metamorphism KW - aqueous alteration KW - NanoSIMS KW - CM chondrites KW - Si-30/Si-28 KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1692744621?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Presolar+grains+in+the+CM2+chondrite+Sutter%27s+Mill&rft.au=Zhao%2C+Xuchao%3BLin%2C+Yangting%3BYin%2C+Qing-Zhu%3BZhang%2C+Jianchao%3BHao%2C+Jialong%3BZolensky%2C+Michael%3BJenniskens%2C+Peter&rft.aulast=Zhao&rft.aufirst=Xuchao&rft.date=2014-11-01&rft.volume=49&rft.issue=11&rft.spage=2038&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fmaps.12289 L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2015-01-01 N1 - Number of references - 24 N1 - PubXState - AR N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2015-07-02 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - alloys; anomalies; aqueous alteration; C-13/C-12; carbides; carbon; carbonaceous chondrites; chondrites; CM chondrites; heterogeneity; ion probe data; isotope ratios; isotopes; mass spectra; metamorphism; meteorites; N-15/N-14; NanoSIMS; nitrogen; parent bodies; presolar grains; Si-29/Si-28; Si-30/Si-28; silicon; spectra; stable isotopes; stony meteorites; Sutter's Mill Meteorite; thermal history; thermal metamorphism DO - http://dx.doi.org/10.1111/maps.12289 ER - TY - JOUR T1 - Mineralogy and petrography of C asteroid regolith; the Sutter's Mill CM meteorite AN - 1692744604; 2015-059954 AB - Based upon our characterization of three separate stones by electron and X-ray beam analyses, computed X-ray microtomography, Raman microspectrometry, and visible-IR spectrometry, Sutter's Mill is a unique regolith breccia consisting mainly of various CM lithologies. Most samples resemble existing available CM2 chondrites, consisting of chondrules and calcium-aluminum-rich inclusion (CAI) set within phyllosilicate-dominated matrix (mainly serpentine), pyrrhotite, pentlandite, tochilinite, and variable amounts of Ca-Mg-Fe carbonates. Some lithologies have witnessed sufficient thermal metamorphism to transform phyllosilicates into fine-grained olivine, tochilinite into troilite, and destroy carbonates. One finely comminuted lithology contains xenolithic materials (enstatite, Fe-Cr phosphides) suggesting impact of a reduced asteroid (E or M class) onto the main Sutter's Mill parent asteroid, which was probably a C class asteroid. One can use Sutter's Mill to help predict what will be found on the surfaces of C class asteroids such as Ceres and the target asteroids of the OSIRIS-REx and Hayabusa 2 sample return missions (which will visit predominantly primitive asteroids). C class asteroid regolith may well contain a mixture of hydrated and thermally dehydrated indigenous materials as well as a significant admixture of exogenous material would be essential to the successful interpretation of mineralogical and bulk compositional data. Abstract Copyright The Meteoritical Society, 2014. JF - Meteoritics & Planetary Science AU - Zolensky, Michael AU - Mikouchi, Takashi AU - Fries, Marc AU - Bodnar, Robert AU - Jenniskens, Peter AU - Yin, Qing-Zhu AU - Hagiya, Kenji AU - Ohsumi, Kazumasa AU - Komatsu, Mutsumi AU - Colbert, Matthew AU - Hanna, Romy AU - Maisano, Jessie AU - Ketcham, Richard AU - Kebukawa, Yoko AU - Nakamura, Tomoki AU - Matsuoka, Moe AU - Sasaki, Sho AU - Tsuchiyama, Akira AU - Gounelle, Matthieu AU - Le, Loan AU - Martinez, James AU - Ross, Kent AU - Rahman, Zia Y1 - 2014/11// PY - 2014 DA - November 2014 SP - 1997 EP - 2016 PB - Meteoritical Society, Fayetteville, AR VL - 49 IS - 11 SN - 1086-9379, 1086-9379 KW - silicates KW - stony meteorites KW - asteroids KW - optical spectra KW - electron diffraction data KW - calcium-aluminum inclusions KW - infrared spectra KW - electron probe data KW - meteorites KW - mineral composition KW - inclusions KW - enstatite chondrites KW - spectra KW - chondrites KW - xenoliths KW - C-type asteroids KW - parent bodies KW - Sutter's Mill Meteorite KW - electron microscopy data KW - thermal metamorphism KW - carbonaceous chondrites KW - metamorphism KW - comminution KW - X-ray data KW - Raman spectra KW - chondrules KW - petrography KW - sheet silicates KW - CM chondrites KW - computed tomography data KW - SEM data KW - regolith KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1692744604?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Mineralogy+and+petrography+of+C+asteroid+regolith%3B+the+Sutter%27s+Mill+CM+meteorite&rft.au=Zolensky%2C+Michael%3BMikouchi%2C+Takashi%3BFries%2C+Marc%3BBodnar%2C+Robert%3BJenniskens%2C+Peter%3BYin%2C+Qing-Zhu%3BHagiya%2C+Kenji%3BOhsumi%2C+Kazumasa%3BKomatsu%2C+Mutsumi%3BColbert%2C+Matthew%3BHanna%2C+Romy%3BMaisano%2C+Jessie%3BKetcham%2C+Richard%3BKebukawa%2C+Yoko%3BNakamura%2C+Tomoki%3BMatsuoka%2C+Moe%3BSasaki%2C+Sho%3BTsuchiyama%2C+Akira%3BGounelle%2C+Matthieu%3BLe%2C+Loan%3BMartinez%2C+James%3BRoss%2C+Kent%3BRahman%2C+Zia&rft.aulast=Zolensky&rft.aufirst=Michael&rft.date=2014-11-01&rft.volume=49&rft.issue=11&rft.spage=1997&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fmaps.12386 L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2015-01-01 N1 - Number of references - 52 N1 - PubXState - AR N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2015-07-02 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - asteroids; C-type asteroids; calcium-aluminum inclusions; carbonaceous chondrites; chondrites; chondrules; CM chondrites; comminution; computed tomography data; electron diffraction data; electron microscopy data; electron probe data; enstatite chondrites; inclusions; infrared spectra; metamorphism; meteorites; mineral composition; optical spectra; parent bodies; petrography; Raman spectra; regolith; SEM data; sheet silicates; silicates; spectra; stony meteorites; Sutter's Mill Meteorite; thermal metamorphism; X-ray data; xenoliths DO - http://dx.doi.org/10.1111/maps.12386 ER - TY - JOUR T1 - The amino acid composition of the Sutter's Mill CM2 carbonaceous chondrite AN - 1692744422; 2015-059961 AB - We determined the abundances and enantiomeric compositions of amino acids in Sutter's Mill fragment #2 (designated SM2) recovered prior to heavy rains that fell April 25-26, 2012, and two other meteorite fragments, SM12 and SM51, that were recovered postrain. We also determined the abundance, enantiomeric, and isotopic compositions of amino acids in soil from the recovery site of fragment SM51. The three meteorite stones experienced terrestrial amino acid contamination, as evidenced by the low d/l ratios of several proteinogenic amino acids. The d/l ratios were higher in SM2 than in SM12 and SM51, consistent with rain introducing additional l-amino acid contaminants to SM12 and SM51. Higher percentages of glycine, beta -alanine, and gamma -amino-n-butyric acid were observed in free form in SM2 and SM51 compared with the soil, suggesting that these free amino acids may be indigenous. Trace levels of d+l-beta -aminoisobutyric acid (beta -AIB) observed in all three meteorites are not easily explained as terrestrial contamination, as beta -AIB is rare on Earth and was not detected in the soil. Bulk carbon and nitrogen and isotopic ratios of the SM samples and the soil also indicate terrestrial contamination, as does compound-specific isotopic analysis of the amino acids in the soil. The amino acid abundances in SM2, the most pristine SM meteorite analyzed here, are approximately 20-fold lower than in the Murchison CM2 carbonaceous chondrite. This may be due to thermal metamorphism in the Sutter's Mill parent body at temperatures greater than observed for other aqueously altered CM2 meteorites. Abstract Copyright The Meteoritical Society, 2014. JF - Meteoritics & Planetary Science AU - Burton, Aaron S AU - Glavin, Daniel P AU - Elsila, Jamie E AU - Dworkin, Jason P AU - Jenniskens, Peter AU - Yin, Qing-Zhu Y1 - 2014/11// PY - 2014 DA - November 2014 SP - 2074 EP - 2086 PB - Meteoritical Society, Fayetteville, AR VL - 49 IS - 11 SN - 1086-9379, 1086-9379 KW - terrestrial environment KW - stony meteorites KW - isotopes KW - alanine KW - gas chromatograms KW - mass spectra KW - stable isotopes KW - nitrogen KW - meteorites KW - pyrolysis KW - carbon KW - amino acids KW - spectra KW - enantiomers KW - chondrites KW - liquid chromatography KW - chromatography KW - N-15/N-14 KW - isotope ratios KW - parent bodies KW - C-13/C-12 KW - glycine KW - Sutter's Mill Meteorite KW - chirality KW - thermal metamorphism KW - terrestrial contamination KW - carbonaceous chondrites KW - metamorphism KW - meteorite falls KW - organic compounds KW - organic acids KW - chromatograms KW - CM chondrites KW - aspartic acid KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1692744422?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=The+amino+acid+composition+of+the+Sutter%27s+Mill+CM2+carbonaceous+chondrite&rft.au=Burton%2C+Aaron+S%3BGlavin%2C+Daniel+P%3BElsila%2C+Jamie+E%3BDworkin%2C+Jason+P%3BJenniskens%2C+Peter%3BYin%2C+Qing-Zhu&rft.aulast=Burton&rft.aufirst=Aaron&rft.date=2014-11-01&rft.volume=49&rft.issue=11&rft.spage=2074&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fmaps.12281 L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2015-01-01 N1 - Number of references - 50 N1 - PubXState - AR N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2015-07-02 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - alanine; amino acids; aspartic acid; C-13/C-12; carbon; carbonaceous chondrites; chirality; chondrites; chromatograms; chromatography; CM chondrites; enantiomers; gas chromatograms; glycine; isotope ratios; isotopes; liquid chromatography; mass spectra; metamorphism; meteorite falls; meteorites; N-15/N-14; nitrogen; organic acids; organic compounds; parent bodies; pyrolysis; spectra; stable isotopes; stony meteorites; Sutter's Mill Meteorite; terrestrial contamination; terrestrial environment; thermal metamorphism DO - http://dx.doi.org/10.1111/maps.12281 ER - TY - JOUR T1 - Mid-infrared study of stones from the Sutter's Mill Meteorite AN - 1692744334; 2015-059955 AB - The Sutter's Mill meteorite fell in northern California on April 22, 2012. Several fragments of the meteorite were recovered, some of them shortly after the fall, others several days later after a heavy rainstorm. In this work, we analyzed several samples of four fragments-SM2, SM12, SM20, and SM30-from the Sutter's Mill meteorite with two infrared (IR) microscopes operating in the 4000-650 cm (super -1) (2.5-15.4 mu m) range. Spectra show absorption features associated with minerals such as olivines, phyllosilicates, carbonates, and possibly pyroxenes, as well as organics. Spectra of specific minerals vary from one particle to another within a given stone, and even within a single particle, indicating a nonuniform mineral composition. Infrared features associated with aliphatic CH (sub 2) and CH (sub 3) groups associated with organics are also seen in several spectra. However, the presence of organics in the samples studied is not clear because these features overlap with carbonate overtone bands. Finally, other samples collected within days after the rainstorm show evidence for bacterial terrestrial contamination, which indicates how quickly meteorites can be contaminated on such small scales. Abstract Copyright The Meteoritical Society, 2014. JF - Meteoritics & Planetary Science AU - Nuevo, Michel AU - Sandford, Scott A AU - Flynn, George J AU - Wirick, Susan AU - Jenniskens, Peter Y1 - 2014/11// PY - 2014 DA - November 2014 SP - 2017 EP - 2026 PB - Meteoritical Society, Fayetteville, AR VL - 49 IS - 11 SN - 1086-9379, 1086-9379 KW - silicates KW - stony meteorites KW - aliphatic hydrocarbons KW - Sutter's Mill Meteorite KW - olivine group KW - terrestrial contamination KW - carbonaceous chondrites KW - meteorite falls KW - infrared spectra KW - synchrotron radiation KW - nesosilicates KW - meteorites KW - FTIR spectra KW - organic compounds KW - mineral composition KW - olivine KW - bacteria KW - orthosilicates KW - hydrocarbons KW - sheet silicates KW - spectra KW - chondrites KW - carbonates KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1692744334?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Mid-infrared+study+of+stones+from+the+Sutter%27s+Mill+Meteorite&rft.au=Nuevo%2C+Michel%3BSandford%2C+Scott+A%3BFlynn%2C+George+J%3BWirick%2C+Susan%3BJenniskens%2C+Peter&rft.aulast=Nuevo&rft.aufirst=Michel&rft.date=2014-11-01&rft.volume=49&rft.issue=11&rft.spage=2017&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fmaps.12269 L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2015-01-01 N1 - Number of references - 9 N1 - PubXState - AR N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2015-07-02 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; bacteria; carbonaceous chondrites; carbonates; chondrites; FTIR spectra; hydrocarbons; infrared spectra; meteorite falls; meteorites; mineral composition; nesosilicates; olivine; olivine group; organic compounds; orthosilicates; sheet silicates; silicates; spectra; stony meteorites; Sutter's Mill Meteorite; synchrotron radiation; terrestrial contamination DO - http://dx.doi.org/10.1111/maps.12269 ER - TY - JOUR T1 - Diamond xenolith and matrix organic matter in the Sutter's Mill Meteorite measured by C-XANES AN - 1692744159; 2015-059963 AB - The Sutter's Mill (SM) meteorite fell in El Dorado County, California, on April 22, 2012. This meteorite is a regolith breccia composed of CM chondrite material and at least one xenolithic phase: oldhamite. The meteorite studied here, SM2 (subsample 5), was one of three meteorites collected before it rained extensively on the debris site, thus preserving the original asteroid regolith mineralogy. Two relatively large (10 mu m sized) possible diamond grains were observed in SM2-5 surrounded by fine-grained matrix. In the present work, we analyzed a focused ion beam (FIB) milled thin section that transected a region containing these two potential diamond grains as well as the surrounding fine-grained matrix employing carbon and nitrogen X-ray absorption near-edge structure (C-XANES and N-XANES) spectroscopy using a scanning transmission X-ray microscope (STXM) (Beamline 5.3.2 at the Advanced Light Source, Lawrence Berkeley National Laboratory). The STXM analysis revealed that the matrix of SM2-5 contains C-rich grains, possibly organic nanoglobules. A single carbonate grain was also detected. The C-XANES spectrum of the matrix is similar to that of insoluble organic matter (IOM) found in other CM chondrites. However, no significant nitrogen-bearing functional groups were observed with N-XANES. One of the possible diamond grains contains a Ca-bearing inclusion that is not carbonate. C-XANES features of the diamond-edges suggest that the diamond might have formed by the CVD process, or in a high-temperature and -pressure environment in the interior of a much larger parent body. Abstract Copyright The Meteoritical Society, 2014. JF - Meteoritics & Planetary Science AU - Kebukawa, Yoko AU - Zolensky, Michael E AU - Kilcoyne, A L David AU - Rahman, Zia AU - Jenniskens, Peter AU - Cody, George D Y1 - 2014/11// PY - 2014 DA - November 2014 SP - 2095 EP - 2103 PB - Meteoritical Society, Fayetteville, AR VL - 49 IS - 11 SN - 1086-9379, 1086-9379 KW - stony meteorites KW - asteroids KW - scanning transmission X-ray microscopy KW - oldhamite KW - nitrogen KW - XANES spectra KW - meteorites KW - carbon KW - inclusions KW - diamond KW - spectra KW - organic carbon KW - chondrites KW - xenoliths KW - parent bodies KW - matrix KW - Sutter's Mill Meteorite KW - native elements KW - carbonaceous chondrites KW - X-ray spectra KW - organic compounds KW - CM chondrites KW - sulfides KW - regolith KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1692744159?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Diamond+xenolith+and+matrix+organic+matter+in+the+Sutter%27s+Mill+Meteorite+measured+by+C-XANES&rft.au=Kebukawa%2C+Yoko%3BZolensky%2C+Michael+E%3BKilcoyne%2C+A+L+David%3BRahman%2C+Zia%3BJenniskens%2C+Peter%3BCody%2C+George+D&rft.aulast=Kebukawa&rft.aufirst=Yoko&rft.date=2014-11-01&rft.volume=49&rft.issue=11&rft.spage=2095&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fmaps.12312 L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2015-01-01 N1 - Number of references - 41 N1 - PubXState - AR N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2015-07-02 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - asteroids; carbon; carbonaceous chondrites; chondrites; CM chondrites; diamond; inclusions; matrix; meteorites; native elements; nitrogen; oldhamite; organic carbon; organic compounds; parent bodies; regolith; scanning transmission X-ray microscopy; spectra; stony meteorites; sulfides; Sutter's Mill Meteorite; X-ray spectra; XANES spectra; xenoliths DO - http://dx.doi.org/10.1111/maps.12312 ER - TY - JOUR T1 - Detection and rapid recovery of the Sutter's Mill Meteorite fall as a model for future recoveries worldwide AN - 1692741702; 2015-059953 AB - The Sutter's Mill C-type meteorite fall occurred on 22 April 2012 in and around the town of Coloma, California. The exact location of the meteorite fall was determined within hours of the event using a combination of eyewitness reports, weather radar imagery, and seismometry data. Recovery of the first meteorites occurred within 2 days and continued for months afterward. The recovery effort included local citizens, scientists, and meteorite hunters, and featured coordination efforts by local scientific institutions. Scientific analysis of the collected meteorites revealed characteristics that were available for study only because the rapid collection of samples had minimized terrestrial contamination/alteration. This combination of factors-rapid and accurate location of the event, participation in the meteorite search by the public, and coordinated scientific investigation of recovered samples-is a model that was widely beneficial and should be emulated in future meteorite falls. The tools necessary to recreate the Sutter's Mill recovery are available, but are currently underutilized in much of the world. Weather radar networks, scientific institutions with interest in meteoritics, and the interested public are available globally. Therefore, it is possible to repeat the Sutter's Mill recovery model for future meteorite falls around the world, each for relatively little cost with a dedicated researcher. Doing so will significantly increase the number of fresh meteorite falls available for study, provide meteorite material that can serve as the nuclei of new meteorite collections, and will improve the public visibility of meteoritics research. Abstract Copyright The Meteoritical Society, 2014. JF - Meteoritics & Planetary Science AU - Fries, Marc AU - Le Corre, Lucille AU - Hankey, Mike AU - Fries, Jeff AU - Matson, Robert AU - Schaefer, Jake AU - Reddy, Vishnu AU - Jenniskens, Peter Y1 - 2014/11// PY - 2014 DA - November 2014 SP - 1989 EP - 1996 PB - Meteoritical Society, Fayetteville, AR VL - 49 IS - 11 SN - 1086-9379, 1086-9379 KW - United States KW - imagery KW - stony meteorites KW - El Dorado County California KW - public awareness KW - radar methods KW - Sutter's Mill Meteorite KW - carbonaceous chondrites KW - recovery KW - meteorite falls KW - models KW - California KW - meteorites KW - Coloma California KW - detection KW - future KW - chondrites KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1692741702?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Detection+and+rapid+recovery+of+the+Sutter%27s+Mill+Meteorite+fall+as+a+model+for+future+recoveries+worldwide&rft.au=Fries%2C+Marc%3BLe+Corre%2C+Lucille%3BHankey%2C+Mike%3BFries%2C+Jeff%3BMatson%2C+Robert%3BSchaefer%2C+Jake%3BReddy%2C+Vishnu%3BJenniskens%2C+Peter&rft.aulast=Fries&rft.aufirst=Marc&rft.date=2014-11-01&rft.volume=49&rft.issue=11&rft.spage=1989&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fmaps.12249 L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2015-01-01 N1 - Number of references - 22 N1 - PubXState - AR N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2015-07-02 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - California; carbonaceous chondrites; chondrites; Coloma California; detection; El Dorado County California; future; imagery; meteorite falls; meteorites; models; public awareness; radar methods; recovery; stony meteorites; Sutter's Mill Meteorite; United States DO - http://dx.doi.org/10.1111/maps.12249 ER - TY - JOUR T1 - The Sutter's Mill Meteorite; thermoluminescence data on thermal and metamorphic history AN - 1692741618; 2015-059958 AB - A piece of the Sutter's Mill meteorite, fragment SM2-1d, has been examined using thermoluminescence techniques to better understand its thermal and metamorphic history. The sample had very weak but easily measureable natural and induced thermoluminescence (TL) signals; the signal-to-noise ratio was better than 10. The natural TL was restricted to the high-temperature regions of the glow curve suggesting that the meteorite had been heated to approximately 300 degrees C within the time it takes for the TL signal to recover from a heating event, probably within the last 10 (super 5) years. It is possible that this reflects heating during release from the parent body, close passage by the Sun, or heating during atmospheric passage. Of these three options, the least likely is the first, but the other possibilities are equally likely. It seems that temperatures of approximately 300 degrees C reached 5 or 6 mm into the meteorite, so that all but one of the small Sutter's Mill stones have been heated. The Dhajala normalized induced TL signal for SM2-1d is comparable to that of type 3.0 chondrites and is unlike normal CM chondrites, the class it most closely resembles, which do not have detectable TL sensitivity. The shape of the induced TL curve is comparable to other low-type ordinary, CV, and CO chondrites, in that it has a broad hummocky structure, but does not resemble any of them in detail. This suggests that Sutter's Mill is a unique, low-petrographic-type (3.0) chondrite. Abstract Copyright The Meteoritical Society, 2014. JF - Meteoritics & Planetary Science AU - Sears, Derek W AU - Beauford, Robert AU - Jenniskens, Peter Y1 - 2014/11// PY - 2014 DA - November 2014 SP - 2047 EP - 2055 PB - Meteoritical Society, Fayetteville, AR VL - 49 IS - 11 SN - 1086-9379, 1086-9379 KW - stony meteorites KW - parent bodies KW - atmosphere KW - Sutter's Mill Meteorite KW - thermoluminescence KW - thermal history KW - metamorphism KW - temperature KW - meteorites KW - classification KW - petrography KW - heating KW - chondrites KW - high temperature KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1692741618?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=The+Sutter%27s+Mill+Meteorite%3B+thermoluminescence+data+on+thermal+and+metamorphic+history&rft.au=Sears%2C+Derek+W%3BBeauford%2C+Robert%3BJenniskens%2C+Peter&rft.aulast=Sears&rft.aufirst=Derek&rft.date=2014-11-01&rft.volume=49&rft.issue=11&rft.spage=2047&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fmaps.12259 L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2015-01-01 N1 - Number of references - 32 N1 - PubXState - AR N1 - Document feature - illus. N1 - Last updated - 2015-07-02 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - atmosphere; chondrites; classification; heating; high temperature; metamorphism; meteorites; parent bodies; petrography; stony meteorites; Sutter's Mill Meteorite; temperature; thermal history; thermoluminescence DO - http://dx.doi.org/10.1111/maps.12259 ER - TY - JOUR T1 - Studies of lava flows in the Tharsis region of Mars using SHARAD AN - 1660630194; 2015-021778 AB - The Tharsis region of Mars is covered in volcanic flows that can stretch for tens to hundreds of kilometers. Radar measurements of the dielectric properties of these flows can provide information regarding their composition and density. SHARAD (shallow radar), a sounding radar on the Mars Reconnaissance Orbiter, detects basal interfaces beneath flows in some areas of Tharsis northwest and west of Ascraeus Mons, with additional detections south of Pavonis Mons. Comparisons with 12.6 cm ground-based radar images suggest that SHARAD detects basal interfaces primarily in dust or regolith-mantled regions. We use SHARAD data to estimate the real relative permittivity of the flows by comparing the measured time delay of returns from the subsurface with altimetry measurements of the flow heights relative to the surrounding plains. In cases where the subsurface interface is visible at different depths, spanning tens of meters, it is also possible to measure the loss tangent (tan delta ) of the material. The permittivity values calculated range from 7.6 to 11.6, with an average of 9.6, while the mean loss tangent values range from 7.8 X 10 (super -3) to 2.9 X 10 (super -2) with an average of 1.0 X 10 (super -2) . These permittivity and loss tangent estimates for the flows northwest of Ascraeus Mons, west of Ascraeus Mons, and south of Pavonis Mons are consistent with the lab-measured values for dense, low-titanium basalt. Abstract Copyright (2014), . American Geophysical Union. All Rights Reserved. JF - Journal of Geophysical Research: Planets AU - Simon, Molly N AU - Carter, Lynn M AU - Campbell, Bruce A AU - Phillips, Roger J AU - Mattei, Stefania Y1 - 2014/11// PY - 2014 DA - November 2014 SP - 2291 EP - 2299 PB - Wiley-Blackwell for American Geophysical Union, Washington, DC VL - 119 IS - 11 SN - 2169-9097, 2169-9097 KW - volcanic rocks KW - lava flows KW - igneous rocks KW - SHARAD KW - Tharsis Montes KW - radar methods KW - Mars Reconnaissance Orbiter KW - Mars KW - altimetry KW - Pavonis Mons KW - terrestrial planets KW - planets KW - dielectric properties KW - Ascraeus Mons KW - volcanism KW - titanium KW - metals KW - basalts KW - orbital observations KW - regolith KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1660630194?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research%3A+Planets&rft.atitle=Studies+of+lava+flows+in+the+Tharsis+region+of+Mars+using+SHARAD&rft.au=Simon%2C+Molly+N%3BCarter%2C+Lynn+M%3BCampbell%2C+Bruce+A%3BPhillips%2C+Roger+J%3BMattei%2C+Stefania&rft.aulast=Simon&rft.aufirst=Molly&rft.date=2014-11-01&rft.volume=119&rft.issue=11&rft.spage=2291&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Planets&rft.issn=21699097&rft_id=info:doi/10.1002%2F2014JE004666 L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%292169-9100 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2015-01-01 N1 - Number of references - 24 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2015-03-05 N1 - SubjectsTermNotLitGenreText - altimetry; Ascraeus Mons; basalts; dielectric properties; igneous rocks; lava flows; Mars; Mars Reconnaissance Orbiter; metals; orbital observations; Pavonis Mons; planets; radar methods; regolith; SHARAD; terrestrial planets; Tharsis Montes; titanium; volcanic rocks; volcanism DO - http://dx.doi.org/10.1002/2014JE004666 ER - TY - JOUR T1 - The formation of lunar mascon basins from impact to contemporary form AN - 1660629988; 2015-021783 AB - Positive free-air gravity anomalies associated with large lunar impact basins represent a superisostatic mass concentration or "mascon." High-resolution lunar gravity data from the Gravity Recovery and Interior Laboratory spacecraft reveal that these mascons are part of a bulls-eye pattern in which the central positive anomaly is surrounded by an annulus of negative anomalies, which in turn is surrounded by an outer annulus of positive anomalies. To understand the origin of this gravity pattern, we modeled numerically the entire evolution of basin formation from impact to contemporary form. With a hydrocode, we simulated impact excavation and collapse and show that during the major basin-forming era, the preimpact crust and mantle were sufficiently weak to enable a crustal cap to flow back over and cover the mantle exposed by the impact within hours. With hydrocode results as initial conditions, we simulated subsequent cooling and viscoelastic relaxation of topography using a finite element model, focusing on the mare-free Freundlich-Sharonov and mare-infilled Humorum basins. By constraining these models with measured free-air and Bouguer gravity anomalies as well as surface topography, we show that lunar basins evolve by isostatic adjustment from an initially subisostatic state following the collapse stage. The key to the development of a superisostatic inner basin center is its mechanical coupling to the outer basin that rises in response to subisostatic stresses, enabling the inner basin to rise above isostatic equilibrium. Our calculations relate basin size to impactor diameter and velocity, and they constrain the preimpact lunar thermal structure, crustal thickness, viscoelastic rheology, and, for the Humorum basin, the thickness of its postimpact mare fill. Abstract Copyright (2014), . American Geophysical Union. All Rights Reserved. JF - Journal of Geophysical Research: Planets AU - Freed, Andrew M AU - Johnson, Brandon C AU - Blair, David M AU - Melosh, H J AU - Neumann, Gregory A AU - Phillips, Roger J AU - Solomon, Sean C AU - Wieczorek, Mark A AU - Zuber, Maria T Y1 - 2014/11// PY - 2014 DA - November 2014 SP - 2378 EP - 2397 PB - Wiley-Blackwell for American Geophysical Union, Washington, DC VL - 119 IS - 11 SN - 2169-9097, 2169-9097 KW - numerical models KW - impact features KW - Moon KW - Humorum Basin KW - geophysical methods KW - relaxation KW - satellite methods KW - maria KW - viscoelasticity KW - isostasy KW - gravity methods KW - gravity anomalies KW - finite element analysis KW - mascons KW - rheology KW - surface features KW - Bouguer anomalies KW - remote sensing KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1660629988?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research%3A+Planets&rft.atitle=The+formation+of+lunar+mascon+basins+from+impact+to+contemporary+form&rft.au=Freed%2C+Andrew+M%3BJohnson%2C+Brandon+C%3BBlair%2C+David+M%3BMelosh%2C+H+J%3BNeumann%2C+Gregory+A%3BPhillips%2C+Roger+J%3BSolomon%2C+Sean+C%3BWieczorek%2C+Mark+A%3BZuber%2C+Maria+T&rft.aulast=Freed&rft.aufirst=Andrew&rft.date=2014-11-01&rft.volume=119&rft.issue=11&rft.spage=2378&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Planets&rft.issn=21699097&rft_id=info:doi/10.1002%2F2014JE004657 L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%292169-9100 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2015-01-01 N1 - Number of references - 35 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2015-03-05 N1 - SubjectsTermNotLitGenreText - Bouguer anomalies; finite element analysis; geophysical methods; gravity anomalies; gravity methods; Humorum Basin; impact features; isostasy; maria; mascons; Moon; numerical models; relaxation; remote sensing; rheology; satellite methods; surface features; viscoelasticity DO - http://dx.doi.org/10.1002/2014JE004657 ER - TY - JOUR T1 - Ferrian saponite from the Santa Monica Mountains (California, U.S.A., Earth); characterization as an analog for clay minerals on Mars with application to Yellowknife Bay in Gale Crater AN - 1645574775; 2015-007380 AB - Ferrian saponite from the eastern Santa Monica Mountain, near Griffith Park (Los Angeles, California), was investigated as a mineralogical analog to smectites discovered on Mars by the CheMin X-ray diffraction instrument onboard the Mars Science Laboratory (MSL) rover. The martian clay minerals occur in sediment of basaltic composition and have 02l diffraction bands peaking at 4.59 A, consistent with tri-octahedral smectites. The Griffith saponite occurs in basalts as pseudomorphs after olivine and mesostasis glass and as fillings of vesicles and cracks and has 02l diffraction bands at that same position. We obtained chemical compositions (by electron microprobe), X-ray diffraction patterns with a lab version of the CheMin instrument, Mossbauer spectra, and visible and near-IR reflectance (VNIR) spectra on several samples from that locality. The Griffith saponite is magnesian, Mg/(Mg+Sigma Fe) = 65-70%, lacks tetrahedral Fe (super 3+) and octahedral Al (super 3+) , and has Fe (super 3+) /Sigma Fe from 64 to 93%. Its chemical composition is consistent with a fully tri-octahedral smectite, but the abundance of Fe (super 3+) gives a nominal excess charge of +1 to +2 per formula unit. The excess charge is likely compensated by substitution of O (super 2-) for OH (super -) , causing distortion of octahedral sites as inferred from Mossbauer spectra. We hypothesize that the Griffith saponite was initially deposited with all its iron as Fe (super 2+) and was oxidized later. X-ray diffraction shows a sharp 001 peak at 15 A, 00l peaks, and a 02l diffraction band at the same position (4.59 A) and shape as those of the martian samples, indicating that the martian saponite is not fully oxidized. VNIR spectra of the Griffith saponite show distinct absorptions at 1.40, 1.90, 2.30-2.32, and 2.40 mu m, arising from H (sub 2) O and hydroxyl groups in various settings. The position of the approximately 2.31 mu m spectral feature varies systematically with the redox state of the octahedrally coordinated Fe. This correlation may permit surface oxidation state to be inferred (in some cases) from VNIR spectra of Mars obtained from orbit, and, in any case, ferrian saponite is a viable assignment for spectral detections in the range 2.30-2.32 mu m. JF - American Mineralogist AU - Treiman, Allan H AU - Morris, Richard V AU - Agresti, David G AU - Graff, Trevor G AU - Achilles, Cherie N AU - Rampe, Elizabeth B AU - Bristow, Thomas F AU - Ming, Douglas W AU - Blake, David F AU - Vaniman, David T AU - Bish, David L AU - Chipera, Steve J AU - Morrison, Shaunna M AU - Downs, Robert T Y1 - 2014/11// PY - 2014 DA - November 2014 SP - 2234 EP - 2250 PB - Mineralogical Society of America, Washington, DC VL - 99 IS - 11-12 SN - 0003-004X, 0003-004X KW - United States KW - silicates KW - near-infrared spectra KW - X-ray diffraction data KW - Mars KW - crystal structure KW - Gale Crater KW - California KW - Los Angeles California KW - Santa Monica Mountains KW - spectra KW - basaltic composition KW - Mossbauer spectra KW - Yellowknife Bay KW - Los Angeles County California KW - saponite KW - smectite KW - clay minerals KW - terrestrial planets KW - planets KW - Mars Science Laboratory KW - terrestrial comparison KW - sheet silicates KW - Griffith Park KW - crystal chemistry KW - formula KW - 01B:Mineralogy of silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1645574775?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Mineralogist&rft.atitle=Ferrian+saponite+from+the+Santa+Monica+Mountains+%28California%2C+U.S.A.%2C+Earth%29%3B+characterization+as+an+analog+for+clay+minerals+on+Mars+with+application+to+Yellowknife+Bay+in+Gale+Crater&rft.au=Treiman%2C+Allan+H%3BMorris%2C+Richard+V%3BAgresti%2C+David+G%3BGraff%2C+Trevor+G%3BAchilles%2C+Cherie+N%3BRampe%2C+Elizabeth+B%3BBristow%2C+Thomas+F%3BMing%2C+Douglas+W%3BBlake%2C+David+F%3BVaniman%2C+David+T%3BBish%2C+David+L%3BChipera%2C+Steve+J%3BMorrison%2C+Shaunna+M%3BDowns%2C+Robert+T&rft.aulast=Treiman&rft.aufirst=Allan&rft.date=2014-11-01&rft.volume=99&rft.issue=11-12&rft.spage=2234&rft.isbn=&rft.btitle=&rft.title=American+Mineralogist&rft.issn=0003004X&rft_id=info:doi/10.2138%2Fam-2014-4763 L2 - http://www.minsocam.org/MSA/AmMin/TOC/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Abstract, copyright, Mineralogical Society of America | Reference includes data from GeoScienceWorld, Alexandria, VA, United States N1 - Date revised - 2015-01-01 N1 - Number of references - 87 N1 - PubXState - DC N1 - Document feature - illus. incl. 5 tables N1 - Last updated - 2015-04-16 N1 - CODEN - AMMIAY N1 - SubjectsTermNotLitGenreText - basaltic composition; California; clay minerals; crystal chemistry; crystal structure; formula; Gale Crater; Griffith Park; Los Angeles California; Los Angeles County California; Mars; Mars Science Laboratory; Mossbauer spectra; near-infrared spectra; planets; Santa Monica Mountains; saponite; sheet silicates; silicates; smectite; spectra; terrestrial comparison; terrestrial planets; United States; X-ray diffraction data; Yellowknife Bay DO - http://dx.doi.org/10.2138/am-2014-4763 ER - TY - JOUR T1 - Petrography, geochronology and source terrain characteristics of lunar meteorites Dhofar 925, 961 and Sayh al Uhaymir 449 AN - 1645574153; 2015-004347 AB - Dhofar (Dho) 925, 961 and Sayh al Uhaymir (SaU) 449 are brecciated lunar meteorites consisting of mineral fragments and clasts from a range of precursor lithologies including magnesian anorthositic gabbronorite granulites; crystalline impact melt breccias; clast-bearing glassy impact melt breccias; lithic (fragmental) breccias; mare basalts; and evolved (silica-rich) rocks. On the similarity of clast type and mineral chemistry the samples are likely grouped, and were part of the same parent meteorite. Phosphate Pb-Pb ages in impact melt breccias and matrix grains demonstrate that Dho 961 records geological events spanning approximately 500 Ma between 4.35 and 3.89 Ga. These Pb-Pb ages are similar to the ages of 'ancient' intrusive magmatic samples and impact basin melt products collected on the lunar nearside by the Apollo missions. However, the samples' bulk rock composition is chemically distinct from these types of samples, and it has been suggested that they may have originated from the farside South Pole-Aitken impact basin (i.e., Jolliff et al., 2008). We test this hypothesis, and conclude that although it is possible that the samples may be from the South Pole-Aitken basin, there are other regions on the Moon that may have also sourced these complex breccias. Abstract Copyright (2014) Elsevier, B.V. JF - Geochimica et Cosmochimica Acta AU - Joy, K H AU - Nemchin, A AU - Grange, M AU - Lapen, T J AU - Peslier, A H AU - Ross, D K AU - Zolensky, M E AU - Kring, D A Y1 - 2014/11/01/ PY - 2014 DA - 2014 Nov 01 SP - 299 EP - 325 PB - Elsevier, New York, NY VL - 144 SN - 0016-7037, 0016-7037 KW - lunar meteorites KW - stony meteorites KW - impact features KW - mass spectra KW - meteorites KW - BSE data KW - mineral composition KW - Dho 925 KW - major elements KW - dates KW - absolute age KW - Sayh al Uhaymir Meteorites KW - Archean KW - spectra KW - rare earths KW - trace elements KW - chemical composition KW - Dhofar Meteorites KW - Pb/Pb KW - breccia KW - Precambrian KW - Moon KW - textures KW - electron microscopy data KW - cosmochemistry KW - achondrites KW - SaU 449 KW - ICP mass spectra KW - South Pole-Aitken Basin KW - Dho 961 KW - metals KW - SEM data KW - backscattering KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1645574153?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Petrography%2C+geochronology+and+source+terrain+characteristics+of+lunar+meteorites+Dhofar+925%2C+961+and+Sayh+al+Uhaymir+449&rft.au=Joy%2C+K+H%3BNemchin%2C+A%3BGrange%2C+M%3BLapen%2C+T+J%3BPeslier%2C+A+H%3BRoss%2C+D+K%3BZolensky%2C+M+E%3BKring%2C+D+A&rft.aulast=Joy&rft.aufirst=K&rft.date=2014-11-01&rft.volume=144&rft.issue=&rft.spage=299&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2014.08.013 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2015-01-01 N1 - Number of references - 138 N1 - PubXState - NY N1 - Document feature - illus. incl. 2 tables N1 - SuppNotes - Includes appendices N1 - Last updated - 2015-04-16 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - absolute age; achondrites; Archean; backscattering; breccia; BSE data; chemical composition; cosmochemistry; dates; Dho 925; Dho 961; Dhofar Meteorites; electron microscopy data; ICP mass spectra; impact features; lunar meteorites; major elements; mass spectra; metals; meteorites; mineral composition; Moon; Pb/Pb; Precambrian; rare earths; SaU 449; Sayh al Uhaymir Meteorites; SEM data; South Pole-Aitken Basin; spectra; stony meteorites; textures; trace elements DO - http://dx.doi.org/10.1016/j.gca.2014.08.013 ER - TY - JOUR T1 - Redox-driven exsolution of iron-titanium oxides in magnetite in Miller Range (MIL) 03346 nakhlite; evidence for post crystallization oxidation in the nakhlite cumulate pile? AN - 1645573540; 2015-007387 AB - The Miller Range (MIL) 03346 nakhlite contains approximately 20% mesostasis, which contains skeletal titanomagnetite. The titanomagnetite contains trellis-type {111} lamellae of ilmenite similar to those found in terrestrial titanomagnetites that have experienced subsolidus redox reactions during cooling of their host rocks. We have characterized the MIL 03346 titanomagnetite-ilmenite intergrowths by a combination of focused ion beam (FIB), energy-dispersive spectroscopy (EDX), and high-resolution transmission electron microscopy (TEM). The resulting structural and chemical analyses have been combined with temperature and f (sub O2) data from previous studies of MIL 03346, as well as previous work on two-oxide thermobarometry of nakhlites. Our calculations show that as MIL 03346 and other nakhlites cooled below 800 degrees C, they recorded increasingly reducing conditions, such that the lowest temperatures calculated correspond to f (sub O2) conditions as low as 4 log f (sub O2) units below the FMQ buffer. However, the MIL 03346 lamellae must have formed by oxidation and thus record a very late stage low-temperature (<350 degrees C) oxidation event. When considered together with previous studies of MIL 03346 and nakhlites in general, the overall cooling history could be explained by early oxidation followed by intermediate stage reduction caused by S (sub 2) loss by degassing, followed by late loss of Cl by degassing. JF - American Mineralogist AU - Righter, Kevin AU - Keller, Lindsay P AU - Rahman, Zia AU - Christoffersen, Roy Y1 - 2014/11// PY - 2014 DA - November 2014 SP - 2313 EP - 2319 PB - Mineralogical Society of America, Washington, DC VL - 99 IS - 11-12 SN - 0003-004X, 0003-004X KW - ilmenite KW - nakhlite KW - geologic thermometry KW - stony meteorites KW - oxygen KW - iron oxides KW - Martian meteorites KW - buffers KW - halogens KW - lamellae KW - temperature KW - SNC Meteorites KW - meteorites KW - oxides KW - spectra KW - Eh KW - titanomaghemite KW - degassing KW - Miller Range Meteorites KW - chlorine KW - high-resolution methods KW - oxidation KW - mass spectroscopy KW - intergrowths KW - achondrites KW - TEM data KW - ion probe KW - Antarctica KW - crystallization KW - exsolution KW - spectroscopy KW - magnetite KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1645573540?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Mineralogist&rft.atitle=Redox-driven+exsolution+of+iron-titanium+oxides+in+magnetite+in+Miller+Range+%28MIL%29+03346+nakhlite%3B+evidence+for+post+crystallization+oxidation+in+the+nakhlite+cumulate+pile%3F&rft.au=Righter%2C+Kevin%3BKeller%2C+Lindsay+P%3BRahman%2C+Zia%3BChristoffersen%2C+Roy&rft.aulast=Righter&rft.aufirst=Kevin&rft.date=2014-11-01&rft.volume=99&rft.issue=11-12&rft.spage=2313&rft.isbn=&rft.btitle=&rft.title=American+Mineralogist&rft.issn=0003004X&rft_id=info:doi/10.2138%2Fam-2014-4926 L2 - http://www.minsocam.org/MSA/AmMin/TOC/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Abstract, copyright, Mineralogical Society of America | Reference includes data from GeoScienceWorld, Alexandria, VA, United States N1 - Date revised - 2015-01-01 N1 - Number of references - 42 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2015-01-15 N1 - CODEN - AMMIAY N1 - SubjectsTermNotLitGenreText - achondrites; Antarctica; buffers; chlorine; crystallization; degassing; Eh; exsolution; geologic thermometry; halogens; high-resolution methods; ilmenite; intergrowths; ion probe; iron oxides; lamellae; magnetite; Martian meteorites; mass spectroscopy; meteorites; Miller Range Meteorites; nakhlite; oxidation; oxides; oxygen; SNC Meteorites; spectra; spectroscopy; stony meteorites; TEM data; temperature; titanomaghemite DO - http://dx.doi.org/10.2138/am-2014-4926 ER - TY - JOUR T1 - Global warming and 21 super(st) century drying AN - 1627984914; 20926504 AB - Global warming is expected to increase the frequency and intensity of droughts in the twenty-first century, but the relative contributions from changes in moisture supply (precipitation) versus evaporative demand (potential evapotranspiration; PET) have not been comprehensively assessed. Using output from a suite of general circulation model (GCM) simulations from phase 5 of the Coupled Model Intercomparison Project, projected twenty-first century drying and wetting trends are investigated using two offline indices of surface moisture balance: the Palmer Drought Severity Index (PDSI) and the Standardized Precipitation Evapotranspiration Index (SPEI). PDSI and SPEI projections using precipitation and Penman-Monteith based PET changes from the GCMs generally agree, showing robust cross-model drying in western North America, Central America, the Mediterranean, southern Africa, and the Amazon and robust wetting occurring in the Northern Hemisphere high latitudes and east Africa (PDSI only). The SPEI is more sensitive to PET changes than the PDSI, especially in arid regions such as the Sahara and Middle East. Regional drying and wetting patterns largely mirror the spatially heterogeneous response of precipitation in the models, although drying in the PDSI and SPEI calculations extends beyond the regions of reduced precipitation. This expansion of drying areas is attributed to globally widespread increases in PET, caused by increases in surface net radiation and the vapor pressure deficit. Increased PET not only intensifies drying in areas where precipitation is already reduced, it also drives areas into drought that would otherwise experience little drying or even wetting from precipitation trends alone. This PET amplification effect is largest in the Northern Hemisphere mid-latitudes, and is especially pronounced in western North America, Europe, and southeast China. Compared to PDSI projections using precipitation changes only, the projections incorporating both precipitation and PET changes increase the percentage of global land area projected to experience at least moderate drying (PDSI standard deviation of less than or equal to -1) by the end of the twenty-first century from 12 to 30 %. PET induced moderate drying is even more severe in the SPEI projections (SPEI standard deviation of less than or equal to -1; 11 to 44 %), although this is likely less meaningful because much of the PET induced drying in the SPEI occurs in the aforementioned arid regions. Integrated accounting of both the supply and demand sides of the surface moisture balance is therefore critical for characterizing the full range of projected drought risks tied to increasing greenhouse gases and associated warming of the climate system. JF - Climate Dynamics AU - Cook, Benjamin I AU - Smerdon, Jason E AU - Seager, Richard AU - Coats, Sloan AD - NASA Goddard Institute for Space Studies, 2880 Broadway, New York, NY, 10025, USA, benjamin.i.cook@nasa.gov Y1 - 2014/11// PY - 2014 DA - November 2014 SP - 2607 EP - 2627 PB - Springer Science+Business Media, Van Godewijckstraat 30 Dordrecht 3311 GX Netherlands VL - 43 IS - 9-10 SN - 0930-7575, 0930-7575 KW - Water Resources Abstracts; Aqualine Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; ASFA 2: Ocean Technology Policy & Non-Living Resources; Sustainability Science Abstracts; Meteorological & Geoastrophysical Abstracts KW - Moisture KW - Rainfall KW - Arid environments KW - Atmospheric circulation-oceanic circulation coupled models KW - Potential evapotranspiration KW - Radiation KW - Droughts KW - Middle East KW - North America KW - MED, Western Mediterranean KW - Atmospheric circulation KW - Greenhouse effect KW - Projections KW - Global Warming KW - Model Studies KW - ASE, Africa KW - Numerical simulations KW - General circulation models KW - Africa KW - Standards KW - Greenhouse gases KW - Vapor pressure KW - Net radiation KW - Ecological distribution KW - Climate change KW - Drought KW - ASW, Central America KW - Wetting KW - ANE, Europe KW - Latitude KW - Precipitation trends KW - Climates KW - Radiation balance KW - Simulation KW - Drying KW - Evapotranspiration KW - Precipitation KW - Accounting KW - PSW, Africa KW - South America, Amazon R. KW - Global warming KW - China, People's Rep. KW - Q2 09243:Structure, mechanics and thermodynamics KW - SW 5010:Network design KW - Q5 08503:Characteristics, behavior and fate KW - AQ 00006:Sewage KW - M3 1010:Issues in Sustainable Development KW - M2 556.13:Evaporation/Evapotranspiration (556.13) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1627984914?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Climate+Dynamics&rft.atitle=Global+warming+and+21+super%28st%29+century+drying&rft.au=Cook%2C+Benjamin+I%3BSmerdon%2C+Jason+E%3BSeager%2C+Richard%3BCoats%2C+Sloan&rft.aulast=Cook&rft.aufirst=Benjamin&rft.date=2014-11-01&rft.volume=43&rft.issue=9-10&rft.spage=2607&rft.isbn=&rft.btitle=&rft.title=Climate+Dynamics&rft.issn=09307575&rft_id=info:doi/10.1007%2Fs00382-014-2075-y LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-11-01 N1 - Number of references - 75 N1 - Last updated - 2016-07-07 N1 - SubjectsTermNotLitGenreText - Ecological distribution; Radiation balance; Climate change; Drying; Evapotranspiration; Greenhouse effect; Atmospheric circulation; Droughts; Potential evapotranspiration; Net radiation; Numerical simulations; Precipitation trends; General circulation models; Global warming; Drought; Precipitation; Atmospheric circulation-oceanic circulation coupled models; Greenhouse gases; Vapor pressure; Rainfall; Arid environments; Simulation; Accounting; Radiation; Latitude; Standards; Moisture; Wetting; Climates; Projections; Global Warming; Model Studies; North America; ASE, Africa; MED, Western Mediterranean; South America, Amazon R.; ANE, Europe; Africa; China, People's Rep.; ASW, Central America; PSW, Africa; Middle East DO - http://dx.doi.org/10.1007/s00382-014-2075-y ER - TY - JOUR T1 - An assessment of the ENSO forecast skill of GEOS-5 system AN - 1627984560; 20926495 AB - The seasonal forecast skill of the NASA Global Modeling and Assimilation Office atmosphere-ocean coupled global climate model (AOGCM) is evaluated based on an ensemble of 9-month lead forecasts for the period 1993 to 2010. The results from the current version (V2) of the AOGCM consisting of the GEOS-5 AGCM coupled to the MOM4 ocean model are compared with those from an earlier version (V1) in which the AGCM (the NSIPP model) was coupled to the Poseidon Ocean Model. It was found that the correlation skill of the Sea Surface Temperature (SST) forecasts is generally better in V2, especially over the sub-tropical and tropical central and eastern Pacific, Atlantic, and Indian Ocean. Furthermore, the improvement in skill in V2 mainly comes from better forecasts of the developing phase of ENSO from boreal spring to summer. The skill of ENSO forecasts initiated during the boreal winter season, however, shows no improvement in terms of correlation skill, and is in fact slightly worse in terms of root mean square error (RMSE). The degradation of skill is found to be due to an excessive ENSO amplitude. For V1, the ENSO amplitude is too strong in forecasts starting in boreal spring and summer, which causes large RMSE in the forecast. For V2, the ENSO amplitude is slightly stronger than that in observations and V1 for forecasts starting in boreal winter season. An analysis of the terms in the SST tendency equation, shows that this is mainly due to an excessive zonal advective feedback. In addition, V2 forecasts that are initiated during boreal winter season, exhibit a slower phase transition of El Nino, which is consistent with larger amplitude of ENSO after the ENSO peak season. It is found that this is due to weak discharge of equatorial Warm Water Volume (WWV). In both observations and V1, the discharge of equatorial WWV leads the equatorial geostrophic easterly current so as to damp the El Nino starting in January. This process is delayed by about 2 months in V2 due to the slower phase transition of the equatorial zonal current from westerly to easterly. JF - Climate Dynamics AU - Ham, Yoo-Geun AU - Schubert, Siegfried AU - Vikhliaev, Yury AU - Suarez, Max J AD - Global Modeling and Assimilation Office, GSFC/NASA, Greenbelt, MD, USA, ygham@jnu.ac.kr Y1 - 2014/11// PY - 2014 DA - November 2014 SP - 2415 EP - 2430 PB - Springer Science+Business Media, Van Godewijckstraat 30 Dordrecht 3311 GX Netherlands VL - 43 IS - 9-10 SN - 0930-7575, 0930-7575 KW - Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts KW - Degradation KW - Ocean models KW - Correlations KW - Westerlies KW - Roots KW - Freshwater KW - Atmospheric circulation-oceanic circulation coupled models KW - Data assimilation KW - Lead KW - Assessments KW - El Nino KW - Ocean-atmosphere system KW - Seasonal variability KW - Sea surface temperature forecasting KW - El Nino phenomena KW - Marine KW - ISW, Indian Ocean KW - Climate models KW - Climates KW - River discharge KW - Seasonal forecasts KW - Ocean circulation KW - Errors KW - Model Studies KW - Southern Oscillation KW - Ocean currents KW - Global climate KW - Satellite sensing KW - Atmosphere-ocean coupled models KW - Oceans KW - El Nino-Southern Oscillation event KW - SW 0810:General KW - M2 551.588:Environmental Influences (551.588) KW - Q2 09244:Air-sea coupling UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1627984560?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Climate+Dynamics&rft.atitle=An+assessment+of+the+ENSO+forecast+skill+of+GEOS-5+system&rft.au=Ham%2C+Yoo-Geun%3BSchubert%2C+Siegfried%3BVikhliaev%2C+Yury%3BSuarez%2C+Max+J&rft.aulast=Ham&rft.aufirst=Yoo-Geun&rft.date=2014-11-01&rft.volume=43&rft.issue=9-10&rft.spage=2415&rft.isbn=&rft.btitle=&rft.title=Climate+Dynamics&rft.issn=09307575&rft_id=info:doi/10.1007%2Fs00382-014-2063-2 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-11-01 N1 - Number of references - 53 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Satellite sensing; El Nino; Westerlies; River discharge; Ocean-atmosphere system; Ocean circulation; Lead; El Nino phenomena; Southern Oscillation; Climate models; Ocean models; Correlations; Seasonal forecasts; Atmospheric circulation-oceanic circulation coupled models; Data assimilation; Ocean currents; Global climate; Atmosphere-ocean coupled models; El Nino-Southern Oscillation event; Seasonal variability; Sea surface temperature forecasting; Degradation; Assessments; Oceans; Climates; Roots; Errors; Model Studies; ISW, Indian Ocean; Marine; Freshwater DO - http://dx.doi.org/10.1007/s00382-014-2063-2 ER - TY - JOUR T1 - Early-phase musculoskeletal adaptations to different levels of eccentric resistance after 8 weeks of lower body training AN - 1622608748; 20873281 AB - Purpose: Eccentric muscle actions are important to the development of muscle mass and strength and may affect bone mineral density (BMD). This study's purpose was to determine the relative effectiveness of five different eccentric:concentric load ratios to increase musculoskeletal parameters during early adaptations to resistance training. Methods: Forty male subjects performed a supine leg press and calf press training program 3 days week super(-1) for 8 weeks. Subjects were matched for pre-training leg press 1-repetition maximum strength (1-RM) and randomly assigned to one of five training groups. Concentric training load (% 1-RM) was constant across groups, but within groups, eccentric load was 0, 33, 66, 100, or 138 % of concentric load. Muscle mass (dual energy X-ray absorptiometry; DXA), strength (1-RM), and BMD (DXA) were measured pre- and post-training. Markers of bone metabolism were assessed pre-, mid- and post-training. Results: The increase in leg press 1-RM in the 138 % group (20 plus or minus 4 %) was significantly greater (P < 0.05) than the 0 % (8 plus or minus 3 %), 33 % (8 plus or minus 5 %) and 66 % (8 plus or minus 4 %) groups, but not the 100 % group (13 plus or minus 6 %; P = 0.15). All groups, except the 0 % group, increased calf press 1-RM (P < 0.05). Leg lean mass and greater trochanter BMD were increased only in the 138 % group (P < 0.05). Conclusions: Early-phase adaptations to eccentric overload training include increases in muscle mass and site-specific increases in BMD and muscle strength which are not present or are less with traditional and eccentric underload training. Eccentric overload provides a robust musculoskeletal stimulus that may benefit bedridden patients, individuals recovering from injury or illness, and astronauts during spaceflight. JF - European Journal of Applied Physiology AU - English, Kirk L AU - Loehr, James A AU - Lee, Stuart MC AU - Smith, Scott M AD - JES Tech, LLC, 16870 Royal Crest Dr., Houston, TX, 77058, USA, kirk.english-1@nasa.gov Y1 - 2014/11// PY - 2014 DA - Nov 2014 SP - 2263 EP - 2280 PB - Springer Science+Business Media, Van Godewijckstraat 30 Dordrecht 3311 GX Netherlands VL - 114 IS - 11 SN - 1439-6319, 1439-6319 KW - Physical Education Index KW - Muscles (size) KW - Bone mineral density KW - Bones KW - Training (programs) KW - Legs KW - Work load KW - Strength (training) KW - Metabolism KW - PE 030:Exercise, Health & Physical Fitness UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1622608748?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aphysicaleducation&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=European+Journal+of+Applied+Physiology&rft.atitle=Early-phase+musculoskeletal+adaptations+to+different+levels+of+eccentric+resistance+after+8+weeks+of+lower+body+training&rft.au=English%2C+Kirk+L%3BLoehr%2C+James+A%3BLee%2C+Stuart+MC%3BSmith%2C+Scott+M&rft.aulast=English&rft.aufirst=Kirk&rft.date=2014-11-01&rft.volume=114&rft.issue=11&rft.spage=2263&rft.isbn=&rft.btitle=&rft.title=European+Journal+of+Applied+Physiology&rft.issn=14396319&rft_id=info:doi/10.1007%2Fs00421-014-2951-5 LA - English DB - Physical Education Index N1 - Date revised - 2014-11-01 N1 - Number of references - 112 N1 - Last updated - 2014-11-12 N1 - SubjectsTermNotLitGenreText - Bones; Bone mineral density; Muscles (size); Training (programs); Work load; Legs; Metabolism; Strength (training) DO - http://dx.doi.org/10.1007/s00421-014-2951-5 ER - TY - JOUR T1 - BAT2 and BAT3 polymorphisms as novel genetic risk factors for rejection after HLA-related SCT AN - 1620034134 JF - Bone Marrow Transplantation AU - Piras, I S AU - Angius, A AU - Andreani, M AU - Testi, M AU - Lucarelli, G AU - Floris, M AU - Marktel, S AU - Ciceri, F AU - La Nasa, G AU - Fleischhauer, K AU - Roncarolo, M G AU - Bulfone, A AU - Gregori, S AU - Bacchetta, R Y1 - 2014/11// PY - 2014 DA - Nov 2014 SP - 1452 CY - London PB - Nature Publishing Group VL - 49 IS - 11 SN - 02683369 KW - Medical Sciences--Experimental Medicine, Laboratory Technique UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1620034134?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ahealthcompleteshell&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Bone+Marrow+Transplantation&rft.atitle=BAT2+and+BAT3+polymorphisms+as+novel+genetic+risk+factors+for+rejection+after+HLA-related+SCT&rft.au=Piras%2C+I+S%3BAngius%2C+A%3BAndreani%2C+M%3BTesti%2C+M%3BLucarelli%2C+G%3BFloris%2C+M%3BMarktel%2C+S%3BCiceri%2C+F%3BLa+Nasa%2C+G%3BFleischhauer%2C+K%3BRoncarolo%2C+M+G%3BBulfone%2C+A%3BGregori%2C+S%3BBacchetta%2C+R&rft.aulast=Piras&rft.aufirst=I&rft.date=2014-11-01&rft.volume=49&rft.issue=11&rft.spage=1452&rft.isbn=&rft.btitle=&rft.title=Bone+Marrow+Transplantation&rft.issn=02683369&rft_id=info:doi/10.1038%2Fbmt.2014.241 LA - English DB - ProQuest Central N1 - Copyright - Copyright Nature Publishing Group Nov 2014 N1 - Last updated - 2014-11-06 DO - http://dx.doi.org/10.1038/bmt.2014.241 ER - TY - JOUR T1 - The worst North American drought year of the last millennium; 1934 AN - 1707521194; 2015-083706 AB - During the summer of 1934, over 70% of western North America experienced extreme drought, placing this summer far outside the normal range of drought variability and making 1934 the single worst drought year of the last millennium. Strong atmospheric ridging along the West Coast suppressed cold season precipitation across the Northwest, Southwest, and California, a circulation pattern similar to the winters of 1976-1977 and 2013-2014. In the spring and summer, the drying spread to the Midwest and Central Plains, driven by severe precipitation deficits downwind from regions of major dust storm activity, consistent with previous work linking drying during the Dust Bowl to anthropogenic dust aerosol forcing. Despite a moderate La Nina, contributions from sea surface temperature forcing were small, suggesting that the anomalous 1934 drought was primarily a consequence of atmospheric variability, possibly amplified by dust forcing that intensified and spread the drought across nearly all of western North America. Abstract Copyright (2014), American Geophysical Union. All Rights Reserved. JF - Geophysical Research Letters AU - Cook, Benjamin I AU - Seager, Richard AU - Smerdon, Jason E Y1 - 2014/10/28/ PY - 2014 DA - 2014 Oct 28 SP - 7298 EP - 7305 PB - American Geophysical Union, Washington, DC VL - 41 IS - 20 SN - 0094-8276, 0094-8276 KW - United States KW - dust storms KW - North America KW - clastic sediments KW - atmospheric precipitation KW - climate change KW - drought KW - atmospheric circulation KW - Canada KW - transport KW - dust KW - sediments KW - seasonal variations KW - wind transport KW - meteorology KW - winds KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1707521194?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=The+worst+North+American+drought+year+of+the+last+millennium%3B+1934&rft.au=Cook%2C+Benjamin+I%3BSeager%2C+Richard%3BSmerdon%2C+Jason+E&rft.aulast=Cook&rft.aufirst=Benjamin&rft.date=2014-10-28&rft.volume=41&rft.issue=20&rft.spage=7298&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1002%2F2014GL061661 L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%291944-8007/issues LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2015-01-01 N1 - Number of references - 22 N1 - PubXState - DC N1 - Document feature - illus. incl. sketch maps N1 - Last updated - 2015-08-27 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - atmospheric circulation; atmospheric precipitation; Canada; clastic sediments; climate change; drought; dust; dust storms; meteorology; North America; seasonal variations; sediments; transport; United States; wind transport; winds DO - http://dx.doi.org/10.1002/2014GL061661 ER - TY - JOUR T1 - Constraints on the recent rate of lunar ejecta breakdown and implications for crater ages AN - 1637532594; 2014-102344 AB - We present a new empirical constraint on the rate of breakdown of large ejecta blocks on the Moon based on observations from the Lunar Reconnaissance Orbiter (LRO) Diviner thermal radiometer. We find that the rockiness of fresh crater ejecta can be quantified using the Diviner-derived rock abundance data set, and we present a strong inverse correlation between the 95 (super th) percentile value of the ejecta rock abundance (RA (sub 95/5) ) and crater age. For nine craters with published model ages derived from crater counts on their continuous ejecta, RA (sub 95/5) decreases with crater age, as (age [m.y.]) (super -0.46) . This result implies shorter rock survival times than predicted based on downward extrapolation of 100 m crater size-frequency distributions, and represents a new empirical constraint on the rate of comminution of large rocks not previously analyzed experimentally or through direct observation. In addition, our result provides a new method for dating young lunar craters. JF - Geology (Boulder) AU - Ghent, Rebecca R AU - Hayne, Paul O AU - Bandfield, Joshua L AU - Campbell, Bruce A AU - Allen, Carlton C AU - Carter, Lynn M AU - Paige, David A Y1 - 2014/10/24/ PY - 2014 DA - 2014 Oct 24 SP - 1059 EP - 1062 PB - Geological Society of America (GSA), Boulder, CO VL - 42 IS - 12 SN - 0091-7613, 0091-7613 KW - relative age KW - Moon KW - statistical analysis KW - rates KW - satellite methods KW - ejecta KW - regression analysis KW - regolith KW - lunar craters KW - remote sensing KW - Lunar Reconnaisance Orbiter KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1637532594?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geology+%28Boulder%29&rft.atitle=Constraints+on+the+recent+rate+of+lunar+ejecta+breakdown+and+implications+for+crater+ages&rft.au=Ghent%2C+Rebecca+R%3BHayne%2C+Paul+O%3BBandfield%2C+Joshua+L%3BCampbell%2C+Bruce+A%3BAllen%2C+Carlton+C%3BCarter%2C+Lynn+M%3BPaige%2C+David+A&rft.aulast=Ghent&rft.aufirst=Rebecca&rft.date=2014-10-24&rft.volume=42&rft.issue=12&rft.spage=1059&rft.isbn=&rft.btitle=&rft.title=Geology+%28Boulder%29&rft.issn=00917613&rft_id=info:doi/10.1130%2FG35926.1 L2 - http://www.gsajournals.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data from GeoScienceWorld, Alexandria, VA, United States | Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2014-01-01 N1 - Number of references - 25 N1 - PubXState - CO N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2014-12-18 N1 - CODEN - GLGYBA N1 - SubjectsTermNotLitGenreText - ejecta; lunar craters; Lunar Reconnaisance Orbiter; Moon; rates; regolith; regression analysis; relative age; remote sensing; satellite methods; statistical analysis DO - http://dx.doi.org/10.1130/G35926.1 ER - TY - CPAPER T1 - Marsfest Events and on Site Outreach Activities in Death Valley Natl. Park: A Journey into a Crater T2 - 2014 Annual Meeting of the Geological Society of America (GSA 2014) AN - 1645184337; 6318259 JF - 2014 Annual Meeting of the Geological Society of America (GSA 2014) AU - Bonaccorsi, Rosalba AU - Baldino, Terry AU - Jones, Andrea AU - Devore, Edn AU - Fuhrmann, Kelly AU - Mckay, Christopher AU - Willson, David AU - Mahaffy, Paul AU - Bleacher, Lora Y1 - 2014/10/19/ PY - 2014 DA - 2014 Oct 19 KW - Mortality KW - Craters KW - Parks KW - Valleys KW - USA, California, Death Valley UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1645184337?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2014+Annual+Meeting+of+the+Geological+Society+of+America+%28GSA+2014%29&rft.atitle=Marsfest+Events+and+on+Site+Outreach+Activities+in+Death+Valley+Natl.+Park%3A+A+Journey+into+a+Crater&rft.au=Bonaccorsi%2C+Rosalba%3BBaldino%2C+Terry%3BJones%2C+Andrea%3BDevore%2C+Edn%3BFuhrmann%2C+Kelly%3BMckay%2C+Christopher%3BWillson%2C+David%3BMahaffy%2C+Paul%3BBleacher%2C+Lora&rft.aulast=Bonaccorsi&rft.aufirst=Rosalba&rft.date=2014-10-19&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2014+Annual+Meeting+of+the+Geological+Society+of+America+%28GSA+2014%29&rft.issn=&rft_id=info:doi/ L2 - https://gsa.confex.com/gsa/2014AM/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-11-30 N1 - Last updated - 2015-01-14 ER - TY - CPAPER T1 - Curiosity on Mars - Inspiring the Young Generation T2 - 2014 Annual Meeting of the Geological Society of America (GSA 2014) AN - 1645183860; 6318255 JF - 2014 Annual Meeting of the Geological Society of America (GSA 2014) AU - Tavernier, Lyle Y1 - 2014/10/19/ PY - 2014 DA - 2014 Oct 19 KW - Geology KW - Earth sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1645183860?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2014+Annual+Meeting+of+the+Geological+Society+of+America+%28GSA+2014%29&rft.atitle=Curiosity+on+Mars+-+Inspiring+the+Young+Generation&rft.au=Tavernier%2C+Lyle&rft.aulast=Tavernier&rft.aufirst=Lyle&rft.date=2014-10-19&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2014+Annual+Meeting+of+the+Geological+Society+of+America+%28GSA+2014%29&rft.issn=&rft_id=info:doi/ L2 - https://gsa.confex.com/gsa/2014AM/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-11-30 N1 - Last updated - 2015-01-14 ER - TY - CPAPER T1 - Landform Evolution Modeling of Sedimentary Processes on Icy Worlds: The Cases of Hyperion and Helene T2 - 2014 Annual Meeting of the Geological Society of America (GSA 2014) AN - 1645183811; 6318264 JF - 2014 Annual Meeting of the Geological Society of America (GSA 2014) AU - Moore, Jeffrey AU - Howard, Alan AU - Umurhan, Orkan AU - White, Oliver AU - Schenk, Paul Y1 - 2014/10/19/ PY - 2014 DA - 2014 Oct 19 KW - Landforms KW - Evolution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1645183811?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2014+Annual+Meeting+of+the+Geological+Society+of+America+%28GSA+2014%29&rft.atitle=Landform+Evolution+Modeling+of+Sedimentary+Processes+on+Icy+Worlds%3A+The+Cases+of+Hyperion+and+Helene&rft.au=Moore%2C+Jeffrey%3BHoward%2C+Alan%3BUmurhan%2C+Orkan%3BWhite%2C+Oliver%3BSchenk%2C+Paul&rft.aulast=Moore&rft.aufirst=Jeffrey&rft.date=2014-10-19&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2014+Annual+Meeting+of+the+Geological+Society+of+America+%28GSA+2014%29&rft.issn=&rft_id=info:doi/ L2 - https://gsa.confex.com/gsa/2014AM/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-11-30 N1 - Last updated - 2015-01-14 ER - TY - CPAPER T1 - Implications of Erosion Rates for Mars Climate T2 - 2014 Annual Meeting of the Geological Society of America (GSA 2014) AN - 1645183786; 6318744 JF - 2014 Annual Meeting of the Geological Society of America (GSA 2014) AU - Golombek, M AU - Warner, N AU - Ganti, V AU - Lamb, M Y1 - 2014/10/19/ PY - 2014 DA - 2014 Oct 19 KW - Erosion KW - Climate UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1645183786?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2014+Annual+Meeting+of+the+Geological+Society+of+America+%28GSA+2014%29&rft.atitle=Implications+of+Erosion+Rates+for+Mars+Climate&rft.au=Golombek%2C+M%3BWarner%2C+N%3BGanti%2C+V%3BLamb%2C+M&rft.aulast=Golombek&rft.aufirst=M&rft.date=2014-10-19&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2014+Annual+Meeting+of+the+Geological+Society+of+America+%28GSA+2014%29&rft.issn=&rft_id=info:doi/ L2 - https://gsa.confex.com/gsa/2014AM/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-11-30 N1 - Last updated - 2015-01-14 ER - TY - CPAPER T1 - Long Term Orbital Observations of the World'S Active Volcanoes with the Aster Volcano Archive: The Challenges and Opportunities of a 100tb Data Set T2 - 2014 Annual Meeting of the Geological Society of America (GSA 2014) AN - 1645183752; 6318197 JF - 2014 Annual Meeting of the Geological Society of America (GSA 2014) AU - Pieri, David AU - Linick, Justin Y1 - 2014/10/19/ PY - 2014 DA - 2014 Oct 19 KW - Data processing KW - Volcanoes KW - Archives KW - Aster UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1645183752?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2014+Annual+Meeting+of+the+Geological+Society+of+America+%28GSA+2014%29&rft.atitle=Long+Term+Orbital+Observations+of+the+World%27S+Active+Volcanoes+with+the+Aster+Volcano+Archive%3A+The+Challenges+and+Opportunities+of+a+100tb+Data+Set&rft.au=Pieri%2C+David%3BLinick%2C+Justin&rft.aulast=Pieri&rft.aufirst=David&rft.date=2014-10-19&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2014+Annual+Meeting+of+the+Geological+Society+of+America+%28GSA+2014%29&rft.issn=&rft_id=info:doi/ L2 - https://gsa.confex.com/gsa/2014AM/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-11-30 N1 - Last updated - 2015-01-14 ER - TY - CPAPER T1 - A Marine Origin for the Opportunity Landing Site in Meridiani Planum T2 - 2014 Annual Meeting of the Geological Society of America (GSA 2014) AN - 1645183729; 6318745 JF - 2014 Annual Meeting of the Geological Society of America (GSA 2014) AU - Parker, Timothy AU - Bills, Bruce AU - Grant, John Y1 - 2014/10/19/ PY - 2014 DA - 2014 Oct 19 KW - Landing statistics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1645183729?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2014+Annual+Meeting+of+the+Geological+Society+of+America+%28GSA+2014%29&rft.atitle=A+Marine+Origin+for+the+Opportunity+Landing+Site+in+Meridiani+Planum&rft.au=Parker%2C+Timothy%3BBills%2C+Bruce%3BGrant%2C+John&rft.aulast=Parker&rft.aufirst=Timothy&rft.date=2014-10-19&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2014+Annual+Meeting+of+the+Geological+Society+of+America+%28GSA+2014%29&rft.issn=&rft_id=info:doi/ L2 - https://gsa.confex.com/gsa/2014AM/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-11-30 N1 - Last updated - 2015-01-14 ER - TY - CPAPER T1 - An Introduction to the Mars Science Laboratory Curiosity Rover Mission and the Sample Analysis at Mars Instrument Suite and Education and Public Outreach Program T2 - 2014 Annual Meeting of the Geological Society of America (GSA 2014) AN - 1645183716; 6318254 JF - 2014 Annual Meeting of the Geological Society of America (GSA 2014) AU - Jones, Andrea AU - Bleacher, Lora Y1 - 2014/10/19/ PY - 2014 DA - 2014 Oct 19 KW - Education KW - Outreach programs UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1645183716?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2014+Annual+Meeting+of+the+Geological+Society+of+America+%28GSA+2014%29&rft.atitle=An+Introduction+to+the+Mars+Science+Laboratory+Curiosity+Rover+Mission+and+the+Sample+Analysis+at+Mars+Instrument+Suite+and+Education+and+Public+Outreach+Program&rft.au=Jones%2C+Andrea%3BBleacher%2C+Lora&rft.aulast=Jones&rft.aufirst=Andrea&rft.date=2014-10-19&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2014+Annual+Meeting+of+the+Geological+Society+of+America+%28GSA+2014%29&rft.issn=&rft_id=info:doi/ L2 - https://gsa.confex.com/gsa/2014AM/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-11-30 N1 - Last updated - 2015-01-14 ER - TY - CPAPER T1 - Evidence for Hydrothermal Venting of Sulfur-Rich Fluids Mobilized by Siberian Trap Intrusives at the End-Permian T2 - 2014 Annual Meeting of the Geological Society of America (GSA 2014) AN - 1645182944; 6317523 JF - 2014 Annual Meeting of the Geological Society of America (GSA 2014) AU - Fristad, Kirsten AU - Svensen, Henrik AU - Polozov, Alexander AU - Planke, Sverre Y1 - 2014/10/19/ PY - 2014 DA - 2014 Oct 19 KW - Russia, Siberia KW - Geology KW - Earth sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1645182944?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2014+Annual+Meeting+of+the+Geological+Society+of+America+%28GSA+2014%29&rft.atitle=Evidence+for+Hydrothermal+Venting+of+Sulfur-Rich+Fluids+Mobilized+by+Siberian+Trap+Intrusives+at+the+End-Permian&rft.au=Fristad%2C+Kirsten%3BSvensen%2C+Henrik%3BPolozov%2C+Alexander%3BPlanke%2C+Sverre&rft.aulast=Fristad&rft.aufirst=Kirsten&rft.date=2014-10-19&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2014+Annual+Meeting+of+the+Geological+Society+of+America+%28GSA+2014%29&rft.issn=&rft_id=info:doi/ L2 - https://gsa.confex.com/gsa/2014AM/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-11-30 N1 - Last updated - 2015-01-14 ER - TY - CPAPER T1 - Source- to- Sink of Crater Fill Deposits in Arid Hydroclimatic Conditions (Ubehebe Volcanic Field, Death Valley, CA) T2 - 2014 Annual Meeting of the Geological Society of America (GSA 2014) AN - 1645182133; 6317609 JF - 2014 Annual Meeting of the Geological Society of America (GSA 2014) AU - Bonaccorsi, Rosalba AU - Baker, Leslie AU - Zent, Aaron AU - Valdre', Giovanni AU - Willson, David AU - Friese, Richard AU - Mckay, Chris Y1 - 2014/10/19/ PY - 2014 DA - 2014 Oct 19 KW - Deposits KW - Mortality KW - Craters KW - Volcanoes KW - Valleys KW - USA, California, Death Valley UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1645182133?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2014+Annual+Meeting+of+the+Geological+Society+of+America+%28GSA+2014%29&rft.atitle=Source-+to-+Sink+of+Crater+Fill+Deposits+in+Arid+Hydroclimatic+Conditions+%28Ubehebe+Volcanic+Field%2C+Death+Valley%2C+CA%29&rft.au=Bonaccorsi%2C+Rosalba%3BBaker%2C+Leslie%3BZent%2C+Aaron%3BValdre%27%2C+Giovanni%3BWillson%2C+David%3BFriese%2C+Richard%3BMckay%2C+Chris&rft.aulast=Bonaccorsi&rft.aufirst=Rosalba&rft.date=2014-10-19&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2014+Annual+Meeting+of+the+Geological+Society+of+America+%28GSA+2014%29&rft.issn=&rft_id=info:doi/ L2 - https://gsa.confex.com/gsa/2014AM/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-11-30 N1 - Last updated - 2015-01-14 ER - TY - CPAPER T1 - Exploring Ancient Mars with the Curiosity Rover: The Mount Sharp Expedition in Gale Crater T2 - 2014 Annual Meeting of the Geological Society of America (GSA 2014) AN - 1645181067; 6318253 JF - 2014 Annual Meeting of the Geological Society of America (GSA 2014) AU - Mahaffy, Paul Y1 - 2014/10/19/ PY - 2014 DA - 2014 Oct 19 KW - Craters KW - Storms KW - Expeditions UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1645181067?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2014+Annual+Meeting+of+the+Geological+Society+of+America+%28GSA+2014%29&rft.atitle=Exploring+Ancient+Mars+with+the+Curiosity+Rover%3A+The+Mount+Sharp+Expedition+in+Gale+Crater&rft.au=Mahaffy%2C+Paul&rft.aulast=Mahaffy&rft.aufirst=Paul&rft.date=2014-10-19&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2014+Annual+Meeting+of+the+Geological+Society+of+America+%28GSA+2014%29&rft.issn=&rft_id=info:doi/ L2 - https://gsa.confex.com/gsa/2014AM/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-11-30 N1 - Last updated - 2015-01-14 ER - TY - CPAPER T1 - Fluid Chemistries in Gale Crater Calculated Based on in-Situ Geochemistry and Mineralogy from the Mars Curiosity Rover T2 - 2014 Annual Meeting of the Geological Society of America (GSA 2014) AN - 1645180016; 6317565 JF - 2014 Annual Meeting of the Geological Society of America (GSA 2014) AU - Blank, Jennifer AU - Dobson, Patrick AU - Sonnenthal, Eric AU - Spycher, Nicolas AU - Vaniman, David Y1 - 2014/10/19/ PY - 2014 DA - 2014 Oct 19 KW - Craters KW - Geochemistry KW - Mineralogy KW - Storms UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1645180016?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2014+Annual+Meeting+of+the+Geological+Society+of+America+%28GSA+2014%29&rft.atitle=Fluid+Chemistries+in+Gale+Crater+Calculated+Based+on+in-Situ+Geochemistry+and+Mineralogy+from+the+Mars+Curiosity+Rover&rft.au=Blank%2C+Jennifer%3BDobson%2C+Patrick%3BSonnenthal%2C+Eric%3BSpycher%2C+Nicolas%3BVaniman%2C+David&rft.aulast=Blank&rft.aufirst=Jennifer&rft.date=2014-10-19&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2014+Annual+Meeting+of+the+Geological+Society+of+America+%28GSA+2014%29&rft.issn=&rft_id=info:doi/ L2 - https://gsa.confex.com/gsa/2014AM/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-11-30 N1 - Last updated - 2015-01-14 ER - TY - CPAPER T1 - Comparison of Iron Meteorites Found at Three Mars Landing Sites -- Similarities, Differences, and Implications for Martian Weathering Processes T2 - 2014 Annual Meeting of the Geological Society of America (GSA 2014) AN - 1645179933; 6317950 JF - 2014 Annual Meeting of the Geological Society of America (GSA 2014) AU - Ashley, James Y1 - 2014/10/19/ PY - 2014 DA - 2014 Oct 19 KW - Landing statistics KW - Weathering KW - Iron UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1645179933?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2014+Annual+Meeting+of+the+Geological+Society+of+America+%28GSA+2014%29&rft.atitle=Comparison+of+Iron+Meteorites+Found+at+Three+Mars+Landing+Sites+--+Similarities%2C+Differences%2C+and+Implications+for+Martian+Weathering+Processes&rft.au=Ashley%2C+James&rft.aulast=Ashley&rft.aufirst=James&rft.date=2014-10-19&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2014+Annual+Meeting+of+the+Geological+Society+of+America+%28GSA+2014%29&rft.issn=&rft_id=info:doi/ L2 - https://gsa.confex.com/gsa/2014AM/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-11-30 N1 - Last updated - 2015-01-14 ER - TY - CPAPER T1 - Heterotrophic Bacterial Alkaline Phosphatases Determined C/N/P Ratios in Devonian Black Shales T2 - 2014 Annual Meeting of the Geological Society of America (GSA 2014) AN - 1645176728; 6317114 JF - 2014 Annual Meeting of the Geological Society of America (GSA 2014) AU - Tuite Jr, Michael Y1 - 2014/10/19/ PY - 2014 DA - 2014 Oct 19 KW - Alkaline phosphatase KW - Devonian KW - Shale KW - Phosphatase UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1645176728?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2014+Annual+Meeting+of+the+Geological+Society+of+America+%28GSA+2014%29&rft.atitle=Heterotrophic+Bacterial+Alkaline+Phosphatases+Determined+C%2FN%2FP+Ratios+in+Devonian+Black+Shales&rft.au=Tuite+Jr%2C+Michael&rft.aulast=Tuite+Jr&rft.aufirst=Michael&rft.date=2014-10-19&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2014+Annual+Meeting+of+the+Geological+Society+of+America+%28GSA+2014%29&rft.issn=&rft_id=info:doi/ L2 - https://gsa.confex.com/gsa/2014AM/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-11-30 N1 - Last updated - 2015-01-14 ER - TY - CPAPER T1 - Enceladus'S Diverse Ridge Terrains T2 - 2014 Annual Meeting of the Geological Society of America (GSA 2014) AN - 1645168756; 6316843 JF - 2014 Annual Meeting of the Geological Society of America (GSA 2014) AU - Patthoff, D AU - Pappalardo, Robert AU - Chilton, Heather AU - Thomas, Peter Y1 - 2014/10/19/ PY - 2014 DA - 2014 Oct 19 KW - Ridges UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1645168756?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2014+Annual+Meeting+of+the+Geological+Society+of+America+%28GSA+2014%29&rft.atitle=Enceladus%27S+Diverse+Ridge+Terrains&rft.au=Patthoff%2C+D%3BPappalardo%2C+Robert%3BChilton%2C+Heather%3BThomas%2C+Peter&rft.aulast=Patthoff&rft.aufirst=D&rft.date=2014-10-19&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2014+Annual+Meeting+of+the+Geological+Society+of+America+%28GSA+2014%29&rft.issn=&rft_id=info:doi/ L2 - https://gsa.confex.com/gsa/2014AM/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-11-30 N1 - Last updated - 2015-01-14 ER - TY - CPAPER T1 - toward a More Aquatic Future: Rising Seas and Coastal Storms in New York City T2 - 2014 Annual Meeting of the Geological Society of America (GSA 2014) AN - 1645168658; 6316616 JF - 2014 Annual Meeting of the Geological Society of America (GSA 2014) AU - Gornitz, Vivien AU - Horton, Radley AU - Bader, D AU - Little, C AU - Rosenzweig, Cynthia Y1 - 2014/10/19/ PY - 2014 DA - 2014 Oct 19 KW - USA, New York, New York City KW - Storms KW - Urban areas UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1645168658?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2014+Annual+Meeting+of+the+Geological+Society+of+America+%28GSA+2014%29&rft.atitle=toward+a+More+Aquatic+Future%3A+Rising+Seas+and+Coastal+Storms+in+New+York+City&rft.au=Gornitz%2C+Vivien%3BHorton%2C+Radley%3BBader%2C+D%3BLittle%2C+C%3BRosenzweig%2C+Cynthia&rft.aulast=Gornitz&rft.aufirst=Vivien&rft.date=2014-10-19&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2014+Annual+Meeting+of+the+Geological+Society+of+America+%28GSA+2014%29&rft.issn=&rft_id=info:doi/ L2 - https://gsa.confex.com/gsa/2014AM/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-11-30 N1 - Last updated - 2015-01-14 ER - TY - CPAPER T1 - Mission Applications Support at Nasa: The Gravity Recovery and Climate Experiment (Grace) Missions T2 - 2014 Annual Meeting of the Geological Society of America (GSA 2014) AN - 1645168565; 6316386 JF - 2014 Annual Meeting of the Geological Society of America (GSA 2014) AU - Srinivasan, Margaret AU - Ivins, Erik AU - Jasinski, Michael Y1 - 2014/10/19/ PY - 2014 DA - 2014 Oct 19 KW - Gravity KW - Climate UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1645168565?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2014+Annual+Meeting+of+the+Geological+Society+of+America+%28GSA+2014%29&rft.atitle=Mission+Applications+Support+at+Nasa%3A+The+Gravity+Recovery+and+Climate+Experiment+%28Grace%29+Missions&rft.au=Srinivasan%2C+Margaret%3BIvins%2C+Erik%3BJasinski%2C+Michael&rft.aulast=Srinivasan&rft.aufirst=Margaret&rft.date=2014-10-19&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2014+Annual+Meeting+of+the+Geological+Society+of+America+%28GSA+2014%29&rft.issn=&rft_id=info:doi/ L2 - https://gsa.confex.com/gsa/2014AM/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-11-30 N1 - Last updated - 2015-01-14 ER - TY - CPAPER T1 - Labyrinth Terrain on Titan T2 - 2014 Annual Meeting of the Geological Society of America (GSA 2014) AN - 1645168520; 6316839 JF - 2014 Annual Meeting of the Geological Society of America (GSA 2014) AU - Malaska, Michael AU - Radebaugh, Jani AU - Lopes, Rosaly AU - Mitchell, Karl AU - Hayes, Alexander AU - Le Gall, Alice AU - Turtle, Elizabeth AU - Solomonidou, Anezina AU - Lorenz, Ralph Y1 - 2014/10/19/ PY - 2014 DA - 2014 Oct 19 KW - Geology KW - Earth sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1645168520?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2014+Annual+Meeting+of+the+Geological+Society+of+America+%28GSA+2014%29&rft.atitle=Labyrinth+Terrain+on+Titan&rft.au=Malaska%2C+Michael%3BRadebaugh%2C+Jani%3BLopes%2C+Rosaly%3BMitchell%2C+Karl%3BHayes%2C+Alexander%3BLe+Gall%2C+Alice%3BTurtle%2C+Elizabeth%3BSolomonidou%2C+Anezina%3BLorenz%2C+Ralph&rft.aulast=Malaska&rft.aufirst=Michael&rft.date=2014-10-19&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2014+Annual+Meeting+of+the+Geological+Society+of+America+%28GSA+2014%29&rft.issn=&rft_id=info:doi/ L2 - https://gsa.confex.com/gsa/2014AM/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-11-30 N1 - Last updated - 2015-01-14 ER - TY - CPAPER T1 - Modeling of Sublimation-Driven Erosion and Ice Pinnacle Formation on Callisto T2 - 2014 Annual Meeting of the Geological Society of America (GSA 2014) AN - 1645168492; 6316838 JF - 2014 Annual Meeting of the Geological Society of America (GSA 2014) AU - White, Oliver AU - Umurhan, Orkan AU - Howard, Alan AU - Moore, Jeffrey Y1 - 2014/10/19/ PY - 2014 DA - 2014 Oct 19 KW - Ice KW - Erosion UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1645168492?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2014+Annual+Meeting+of+the+Geological+Society+of+America+%28GSA+2014%29&rft.atitle=Modeling+of+Sublimation-Driven+Erosion+and+Ice+Pinnacle+Formation+on+Callisto&rft.au=White%2C+Oliver%3BUmurhan%2C+Orkan%3BHoward%2C+Alan%3BMoore%2C+Jeffrey&rft.aulast=White&rft.aufirst=Oliver&rft.date=2014-10-19&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2014+Annual+Meeting+of+the+Geological+Society+of+America+%28GSA+2014%29&rft.issn=&rft_id=info:doi/ L2 - https://gsa.confex.com/gsa/2014AM/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-11-30 N1 - Last updated - 2015-01-14 ER - TY - CPAPER T1 - Magnetic and Gravity Surveys for Imaging the Geology of the South Pole-Aitken Basin on the Moon T2 - 2014 Annual Meeting of the Geological Society of America (GSA 2014) AN - 1645166054; 6316342 JF - 2014 Annual Meeting of the Geological Society of America (GSA 2014) AU - Purucker, Michael Y1 - 2014/10/19/ PY - 2014 DA - 2014 Oct 19 KW - Moon KW - Gravity KW - Basins KW - Geology KW - Gravity surveys KW - Imaging techniques UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1645166054?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2014+Annual+Meeting+of+the+Geological+Society+of+America+%28GSA+2014%29&rft.atitle=Magnetic+and+Gravity+Surveys+for+Imaging+the+Geology+of+the+South+Pole-Aitken+Basin+on+the+Moon&rft.au=Purucker%2C+Michael&rft.aulast=Purucker&rft.aufirst=Michael&rft.date=2014-10-19&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2014+Annual+Meeting+of+the+Geological+Society+of+America+%28GSA+2014%29&rft.issn=&rft_id=info:doi/ L2 - https://gsa.confex.com/gsa/2014AM/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-11-30 N1 - Last updated - 2015-01-14 ER - TY - CPAPER T1 - Ridge and Trough Terrains on Icy Worlds T2 - 2014 Annual Meeting of the Geological Society of America (GSA 2014) AN - 1645165959; 6316842 JF - 2014 Annual Meeting of the Geological Society of America (GSA 2014) AU - Pappalardo, Robert Y1 - 2014/10/19/ PY - 2014 DA - 2014 Oct 19 KW - Ridges UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1645165959?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2014+Annual+Meeting+of+the+Geological+Society+of+America+%28GSA+2014%29&rft.atitle=Ridge+and+Trough+Terrains+on+Icy+Worlds&rft.au=Pappalardo%2C+Robert&rft.aulast=Pappalardo&rft.aufirst=Robert&rft.date=2014-10-19&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2014+Annual+Meeting+of+the+Geological+Society+of+America+%28GSA+2014%29&rft.issn=&rft_id=info:doi/ L2 - https://gsa.confex.com/gsa/2014AM/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-11-30 N1 - Last updated - 2015-01-14 ER - TY - CPAPER T1 - Unraveling the Spatial and Temporal Histories of Faults Associated with the Claritas Rise Region, Mars T2 - 2014 Annual Meeting of the Geological Society of America (GSA 2014) AN - 1645165786; 6316479 JF - 2014 Annual Meeting of the Geological Society of America (GSA 2014) AU - Anderson, Robert AU - Dohm, James AU - Buczkowski, Debra AU - Wyrick, Danielle Y1 - 2014/10/19/ PY - 2014 DA - 2014 Oct 19 KW - Historical account UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1645165786?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2014+Annual+Meeting+of+the+Geological+Society+of+America+%28GSA+2014%29&rft.atitle=Unraveling+the+Spatial+and+Temporal+Histories+of+Faults+Associated+with+the+Claritas+Rise+Region%2C+Mars&rft.au=Anderson%2C+Robert%3BDohm%2C+James%3BBuczkowski%2C+Debra%3BWyrick%2C+Danielle&rft.aulast=Anderson&rft.aufirst=Robert&rft.date=2014-10-19&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2014+Annual+Meeting+of+the+Geological+Society+of+America+%28GSA+2014%29&rft.issn=&rft_id=info:doi/ L2 - https://gsa.confex.com/gsa/2014AM/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-11-30 N1 - Last updated - 2015-01-14 ER - TY - CPAPER T1 - Curiosity Connections with Pre-College Robotics Competitions T2 - 2014 Annual Meeting of the Geological Society of America (GSA 2014) AN - 1645159126; 6318260 JF - 2014 Annual Meeting of the Geological Society of America (GSA 2014) AU - Brinza, David AU - Steele, Robert AU - Leon, Mark AU - Lavery, David Y1 - 2014/10/19/ PY - 2014 DA - 2014 Oct 19 KW - robotics KW - Competition UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1645159126?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2014+Annual+Meeting+of+the+Geological+Society+of+America+%28GSA+2014%29&rft.atitle=Curiosity+Connections+with+Pre-College+Robotics+Competitions&rft.au=Brinza%2C+David%3BSteele%2C+Robert%3BLeon%2C+Mark%3BLavery%2C+David&rft.aulast=Brinza&rft.aufirst=David&rft.date=2014-10-19&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2014+Annual+Meeting+of+the+Geological+Society+of+America+%28GSA+2014%29&rft.issn=&rft_id=info:doi/ L2 - https://gsa.confex.com/gsa/2014AM/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-11-30 N1 - Last updated - 2015-01-14 ER - TY - CPAPER T1 - Teaching Geoscience and Astrobiology at Lassen Volcanic National Park T2 - 2014 Annual Meeting of the Geological Society of America (GSA 2014) AN - 1645158587; 6316247 JF - 2014 Annual Meeting of the Geological Society of America (GSA 2014) AU - Fristad, Kirsten AU - Des Marais, David AU - Dueck, Sandra AU - Kubo, Michael AU - Parenteau, Mary Y1 - 2014/10/19/ PY - 2014 DA - 2014 Oct 19 KW - USA, California, Lassen Volcanic Natl. Park KW - Education KW - National parks KW - Volcanoes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1645158587?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2014+Annual+Meeting+of+the+Geological+Society+of+America+%28GSA+2014%29&rft.atitle=Teaching+Geoscience+and+Astrobiology+at+Lassen+Volcanic+National+Park&rft.au=Fristad%2C+Kirsten%3BDes+Marais%2C+David%3BDueck%2C+Sandra%3BKubo%2C+Michael%3BParenteau%2C+Mary&rft.aulast=Fristad&rft.aufirst=Kirsten&rft.date=2014-10-19&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2014+Annual+Meeting+of+the+Geological+Society+of+America+%28GSA+2014%29&rft.issn=&rft_id=info:doi/ L2 - https://gsa.confex.com/gsa/2014AM/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-11-30 N1 - Last updated - 2015-01-14 ER - TY - JOUR T1 - Sensing biodiversity AN - 1827932651; PQ0003451427 AB - Biodiversity loss is a global change with consequences that may exceed those of climate change (1). Yet, limited data on key aspects of biodiversity continue to constrain conservation efforts. Effective biodiversity conservation will require rapidly increasing understanding of the elements of biodiversity (such as the condition of ecosystems or the number and identities of species) and how they are changing through time. Satellite and airborne remote sensing are key to this effort but will only achieve their conservation potential when networked with in situ sensors (see the figure). JF - Science AU - Turner, Woody AD - Earth Science Division, NASA Headquarters, Washington, DC 20546-0001, USA Y1 - 2014/10/17/ PY - 2014 DA - 2014 Oct 17 SP - 301 EP - 302 PB - American Association for the Advancement of Science, 1200 New York Avenue, NW Washington DC 20005 United States VL - 346 IS - 6207 SN - 0036-8075, 0036-8075 KW - Ecology Abstracts KW - Data processing KW - Climatic changes KW - Remote sensing KW - Biodiversity KW - Conservation KW - Satellites KW - D 04040:Ecosystem and Ecology Studies UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1827932651?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Science&rft.atitle=Sensing+biodiversity&rft.au=Turner%2C+Woody&rft.aulast=Turner&rft.aufirst=Woody&rft.date=2014-10-17&rft.volume=346&rft.issue=6207&rft.spage=301&rft.isbn=&rft.btitle=&rft.title=Science&rft.issn=00368075&rft_id=info:doi/10.1126%2Fscience.1256014 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-10-01 N1 - Last updated - 2016-10-12 N1 - SubjectsTermNotLitGenreText - Data processing; Climatic changes; Remote sensing; Conservation; Biodiversity; Satellites DO - http://dx.doi.org/10.1126/science.1256014 ER - TY - CPAPER T1 - Effective dispersion of boron nitride nanotubes T2 - 66th Southeastern Regional Meeting of the American Chemical Society (SERMACS 2014) AN - 1645173418; 6325086 JF - 66th Southeastern Regional Meeting of the American Chemical Society (SERMACS 2014) AU - Tiano, Amanda AU - Gibbons, Luke AU - Tsui, Michelle AU - Park, Cheol AU - Fay, Catharine Y1 - 2014/10/16/ PY - 2014 DA - 2014 Oct 16 KW - nanotubes KW - Boron KW - Dispersion KW - Nanotechnology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1645173418?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=66th+Southeastern+Regional+Meeting+of+the+American+Chemical+Society+%28SERMACS+2014%29&rft.atitle=Effective+dispersion+of+boron+nitride+nanotubes&rft.au=Tiano%2C+Amanda%3BGibbons%2C+Luke%3BTsui%2C+Michelle%3BPark%2C+Cheol%3BFay%2C+Catharine&rft.aulast=Tiano&rft.aufirst=Amanda&rft.date=2014-10-16&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=66th+Southeastern+Regional+Meeting+of+the+American+Chemical+Society+%28SERMACS+2014%29&rft.issn=&rft_id=info:doi/ L2 - http://abstracts.acs.org/chem/sermacs2014/program/divisionindex.php?act=session&val=289700&prog=289700 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-11-30 N1 - Last updated - 2015-01-14 ER - TY - JOUR T1 - Constraints on the secular variation of Mercury's magnetic field from the combined analysis of MESSENGER and Mariner 10 data AN - 1629947765; 2014-097271 AB - Observations of Mercury's internal magnetic field from the Magnetometer on the MErcury Surface, Space ENvironment, GEochemistry, and Ranging (MESSENGER) spacecraft have revealed a dipole moment of 190 nT R (sub M) (super 3) offset about 480 km northward from the planetary equator, where R (sub M) is Mercury's radius. We have reanalyzed magnetic field observations acquired by the Mariner 10 spacecraft during its third flyby of Mercury (M10-III) in 1975 to constrain the secular variation in the internal field over the past 40 years. With the application of techniques developed in the analysis of MESSENGER data, we find that the dipole moment that best fits the M10-III data is 188 nT R (sub M) (super 3) offset 475 km northward from the equator. Our results are consistent with no secular variation, although variations of up to 10%, 16%, and 35%, respectively, are permitted in the zonal coefficients g (sub 1) (super 0) , g (sub 2) (super 0) , and g (sub 3) (super 0) in a spherical harmonic expansion of the internal field. Abstract Copyright (2014), . American Geophysical Union. All Rights Reserved. JF - Geophysical Research Letters AU - Philpott, Lydia C AU - Johnson, Catherine L AU - Winslow, Reka M AU - Anderson, Brian J AU - Korth, Haje AU - Purucker, Michael E AU - Solomon, Sean C Y1 - 2014/10/16/ PY - 2014 DA - 2014 Oct 16 SP - 6627 EP - 6634 PB - American Geophysical Union, Washington, DC VL - 41 IS - 19 SN - 0094-8276, 0094-8276 KW - terrestrial planets KW - spherical harmonic analysis KW - Messenger Mission KW - planets KW - secular variations KW - Mercury Planet KW - Mariner Program KW - Mariner 10 KW - paleomagnetism KW - magnetic field KW - dipole moment KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1629947765?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=Constraints+on+the+secular+variation+of+Mercury%27s+magnetic+field+from+the+combined+analysis+of+MESSENGER+and+Mariner+10+data&rft.au=Philpott%2C+Lydia+C%3BJohnson%2C+Catherine+L%3BWinslow%2C+Reka+M%3BAnderson%2C+Brian+J%3BKorth%2C+Haje%3BPurucker%2C+Michael+E%3BSolomon%2C+Sean+C&rft.aulast=Philpott&rft.aufirst=Lydia&rft.date=2014-10-16&rft.volume=41&rft.issue=19&rft.spage=6627&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1002%2F2014GL061401 L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%291944-8007/issues LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2014-01-01 N1 - Number of references - 27 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2014-12-04 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - dipole moment; magnetic field; Mariner 10; Mariner Program; Mercury Planet; Messenger Mission; paleomagnetism; planets; secular variations; spherical harmonic analysis; terrestrial planets DO - http://dx.doi.org/10.1002/2014GL061401 ER - TY - JOUR T1 - Images of surface volatiles in Mercury's polar craters acquired by the MESSENGER spacecraft AN - 1637532742; 2014-102332 AB - Images acquired by NASA's MESSENGER spacecraft haverevealed the morphology of frozen volatiles in Mercury's permanentlyshadowed polar craters and provide insight into the mode of emplacementand evolution of the polar deposits. The images show extensive,spatially continuous regions with distinctive reflectance properties. Asite within Prokofiev crater identified as containing widespread surfacewater ice exhibits a cratered texture that resembles the neighboringsunlit surface except for its uniformly higher reflectance, indicatingthat the surficial ice was emplaced after formation of the underlyingcraters. In areas where water ice is inferred to be present but coveredby a thin layer of dark, organic-rich volatile material, regions withuniformly lower reflectance extend to the edges of the shadowed areasand terminate with sharp boundaries. The sharp boundaries indicatethat the volatile deposits at Mercury's poles are geologically young,relative to the time scale for lateral mixing by impacts, and either arerestored at the surface through an ongoing process or were deliveredto the planet recently. JF - Geology (Boulder) AU - Chabot, Nancy L AU - Ernst, Carolyn M AU - Denevi, Brett W AU - Nair, Hari AU - Deutsch, Ariel N AU - Blewett, David T AU - Murchie, Scott L AU - Neumann, Gregory A AU - Mazarico, Erwan AU - Paige, David A AU - Harmon, John K AU - Head, James W AU - Solomon, Sean C Y1 - 2014/10/15/ PY - 2014 DA - 2014 Oct 15 SP - 1051 EP - 1054 PB - Geological Society of America (GSA), Boulder, CO VL - 42 IS - 12 SN - 0091-7613, 0091-7613 KW - polar regions KW - imagery KW - laser methods KW - satellite methods KW - terrestrial planets KW - case studies KW - planets KW - volatiles KW - craters KW - ice KW - Mercury Planet KW - MESSENGER Mission KW - remote sensing KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1637532742?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geology+%28Boulder%29&rft.atitle=Images+of+surface+volatiles+in+Mercury%27s+polar+craters+acquired+by+the+MESSENGER+spacecraft&rft.au=Chabot%2C+Nancy+L%3BErnst%2C+Carolyn+M%3BDenevi%2C+Brett+W%3BNair%2C+Hari%3BDeutsch%2C+Ariel+N%3BBlewett%2C+David+T%3BMurchie%2C+Scott+L%3BNeumann%2C+Gregory+A%3BMazarico%2C+Erwan%3BPaige%2C+David+A%3BHarmon%2C+John+K%3BHead%2C+James+W%3BSolomon%2C+Sean+C&rft.aulast=Chabot&rft.aufirst=Nancy&rft.date=2014-10-15&rft.volume=42&rft.issue=12&rft.spage=1051&rft.isbn=&rft.btitle=&rft.title=Geology+%28Boulder%29&rft.issn=00917613&rft_id=info:doi/10.1130%2FG35916.1 L2 - http://www.gsajournals.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data from GeoScienceWorld, Alexandria, VA, United States | Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2014-01-01 N1 - Number of references - 26 N1 - PubXState - CO N1 - Document feature - illus. N1 - SuppNotes - GSA Data Repository item 2014363 N1 - Last updated - 2014-12-18 N1 - CODEN - GLGYBA N1 - SubjectsTermNotLitGenreText - case studies; craters; ice; imagery; laser methods; Mercury Planet; MESSENGER Mission; planets; polar regions; remote sensing; satellite methods; terrestrial planets; volatiles DO - http://dx.doi.org/10.1130/G35916.1 ER - TY - JOUR T1 - Ground-based multiwavelength observations of Comet 103P/Hartley 2 AN - 1849303108; 2016-108245 AB - The Jupiter-family comet 103P/Hartley 2 (103P) was the target of the NASA EPOXI mission. In support of this mission, we conducted observations from radio to submillimeter wavelengths of comet 103P in the three weeks preceding the spacecraft rendezvous on UT 2010 November 4.58. This time period included the passage at perihelion and the closest approach of the comet to the Earth. Here, we report detections of HCN, H (sub 2) CO, CS, and OH and upper limits for HNC and DCN toward 103P using the Arizona Radio Observatory Kitt Peak 12 m telescope (ARO 12 m) and submillimeter telescope (SMT), the James Clerk Maxwell Telescope (JCMT), and the Green Bank Telescope (GBT). The water production rate, Q (sub H20) = (0.67-1.07) X 10 (super 28) s (super -1) , was determined from the GBT OH data. From the average abundance ratios of HCN and H (sub 2) CO relative to water (0.13 + or - 0.03% and 0.14 + or - 0.03%, respectively), we conclude that H (sub 2) CO is depleted and HCN is normal with respect to typically observed cometary mixing ratios. However, the abundance ratio of HCN with water shows a large diversity with time. Using the JCMT data, we measured an upper limit for the DCN/HCN ratio 8 K (2sigma ). Copyright (Copyright) 2014. The American Astronomical Society. All rights reserved. JF - The Astrophysical Journal AU - Gicquel, Adeline AU - Milam, Stefanie N AU - Villanueva, Geronimo L AU - Coulson, I M AU - Chuang, Y L AU - Charnley, S B AU - Cordiner, M A AU - Kuan, Y J Y1 - 2014/10/10/ PY - 2014 DA - 2014 Oct 10 EP - Paper no. 1 PB - IOP Publishing for American Astronomical Society, Bristol VL - 794 IS - 1 SN - 0004-637X, 0004-637X KW - water KW - hydrogen isocyanide KW - Earth-based observations KW - telescope methods KW - isotopes KW - isotope ratios KW - formaldehyde KW - stable isotopes KW - hydroxyl ion KW - organic compounds KW - Hartley 2 Comet KW - comets KW - D/H KW - hydrogen KW - Jupiter-family comets KW - hydrogen cyanide KW - carbo monosulfide KW - EPOXI Mission KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849303108?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+Astrophysical+Journal&rft.atitle=Ground-based+multiwavelength+observations+of+Comet+103P%2FHartley+2&rft.au=Gicquel%2C+Adeline%3BMilam%2C+Stefanie+N%3BVillanueva%2C+Geronimo+L%3BCoulson%2C+I+M%3BChuang%2C+Y+L%3BCharnley%2C+S+B%3BCordiner%2C+M+A%3BKuan%2C+Y+J&rft.aulast=Gicquel&rft.aufirst=Adeline&rft.date=2014-10-10&rft.volume=794&rft.issue=1&rft.spage=&rft.isbn=&rft.btitle=&rft.title=The+Astrophysical+Journal&rft.issn=0004637X&rft_id=info:doi/10.1088%2F0004-637X%2F794%2F1%2F1 L2 - http://iopscience.iop.org/0004-637X LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by IOP Publishing Ltd., London, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 78 N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2016-12-16 N1 - SubjectsTermNotLitGenreText - carbo monosulfide; comets; D/H; Earth-based observations; EPOXI Mission; formaldehyde; Hartley 2 Comet; hydrogen; hydrogen cyanide; hydrogen isocyanide; hydroxyl ion; isotope ratios; isotopes; Jupiter-family comets; organic compounds; stable isotopes; telescope methods; water DO - http://dx.doi.org/10.1088/0004-637X/794/1/1 ER - TY - JOUR T1 - On the frequency of potential Venus analogs from Kepler data AN - 1849301251; 2016-108255 AB - The field of exoplanetary science has seen a dramatic improvement in sensitivity to terrestrial planets over recent years. Such discoveries have been a key feature of results from the Kepler mission which utilizes the transit method to determine the size of the planet. These discoveries have resulted in a corresponding interest in the topic of the Habitable Zone and the search for potential Earth analogs. Within the solar system, there is a clear dichotomy between Venus and Earth in terms of atmospheric evolution, likely the result of the large difference (approximately a factor of two) in incident flux from the Sun. Since Venus is 95% of the Earth's radius in size, it is impossible to distinguish between these two planets based only on size. In this Letter we discuss planetary insolation in the context of atmospheric erosion and runaway greenhouse limits for planets similar to Venus. We define a "Venus Zone" in which the planet is more likely to be a Venus analog rather than an Earth analog. We identify 43 potential Venus analogs with an occurrence rate (eta (planet Venus symbol)) of 0.32 (sub -0.07) (super +0.05) and 0.45 (sub -0.09) (super +0.05) for M dwarfs and GK dwarfs, respectively. Copyright (Copyright) 2014. The American Astronomical Society. All rights reserved. JF - The Astrophysical Journal. Letters AU - Kane, Stephen R AU - Kopparapu, Ravi Kumar AU - Domagal-Goldman, Shawn D Y1 - 2014/10/10/ PY - 2014 DA - 2014 Oct 10 EP - Paper no. L5 PB - IOP Publishing, Bristol VL - 794 IS - 1 SN - 2041-8205, 2041-8205 KW - extrasolar planets KW - Venus KW - GK dwarfs KW - M dwarfs KW - atmosphere KW - astrobiology KW - habitable zone KW - size KW - terrestrial planets KW - planets KW - detection KW - stars KW - dwarf stars KW - insolation KW - greenhouse effect KW - atmospheric escape KW - Kepler Mission KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849301251?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+Astrophysical+Journal.+Letters&rft.atitle=On+the+frequency+of+potential+Venus+analogs+from+Kepler+data&rft.au=Kane%2C+Stephen+R%3BKopparapu%2C+Ravi+Kumar%3BDomagal-Goldman%2C+Shawn+D&rft.aulast=Kane&rft.aufirst=Stephen&rft.date=2014-10-10&rft.volume=794&rft.issue=1&rft.spage=&rft.isbn=&rft.btitle=&rft.title=The+Astrophysical+Journal.+Letters&rft.issn=20418205&rft_id=info:doi/10.1088%2F2041-8205%2F794%2F1%2FL5 L2 - http://iopscience.iop.org/2041-8205 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by IOP Publishing Ltd., London, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 40 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2016-12-16 N1 - SubjectsTermNotLitGenreText - astrobiology; atmosphere; atmospheric escape; detection; dwarf stars; extrasolar planets; GK dwarfs; greenhouse effect; habitable zone; insolation; Kepler Mission; M dwarfs; planets; size; stars; terrestrial planets; Venus DO - http://dx.doi.org/10.1088/2041-8205/794/1/L5 ER - TY - JOUR T1 - Direct observations of evolving subglacial drainage beneath the Greenland ice sheet AN - 1648906137; 2015-009608 JF - Nature (London) AU - Andrews, Lauren C AU - Catania, Ginny A AU - Hoffman, Matthew J AU - Gulley, Jason D AU - Luthi, Martin P AU - Ryser, Claudia AU - Hawley, Robert L AU - Neumann, Thomas A Y1 - 2014/10/02/ PY - 2014 DA - 2014 Oct 02 SP - 80 EP - 83 PB - Macmillan Journals, London VL - 514 IS - 7520 SN - 0028-0836, 0028-0836 KW - hydrology KW - subglacial environment KW - pressure KW - Arctic region KW - drainage KW - Paakitsoq KW - Greenland ice sheet KW - glaciers KW - ice sheets KW - Greenland KW - melting KW - hydraulic head KW - boreholes KW - dynamics KW - velocity KW - seasonal variations KW - glacial geology KW - meltwater KW - 24:Quaternary geology KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1648906137?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nature+%28London%29&rft.atitle=Direct+observations+of+evolving+subglacial+drainage+beneath+the+Greenland+ice+sheet&rft.au=Andrews%2C+Lauren+C%3BCatania%2C+Ginny+A%3BHoffman%2C+Matthew+J%3BGulley%2C+Jason+D%3BLuthi%2C+Martin+P%3BRyser%2C+Claudia%3BHawley%2C+Robert+L%3BNeumann%2C+Thomas+A&rft.aulast=Andrews&rft.aufirst=Lauren&rft.date=2014-10-02&rft.volume=514&rft.issue=7520&rft.spage=80&rft.isbn=&rft.btitle=&rft.title=Nature+%28London%29&rft.issn=00280836&rft_id=info:doi/10.1038%2Fnature13796 L2 - http://www.nature.com/nature/index.html LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. N1 - Date revised - 2015-01-01 N1 - Number of references - 47 N1 - Document feature - illus. incl. 3 tables, sketch maps N1 - Last updated - 2015-04-16 N1 - CODEN - NATUAS N1 - SubjectsTermNotLitGenreText - Arctic region; boreholes; drainage; dynamics; glacial geology; glaciers; Greenland; Greenland ice sheet; hydraulic head; hydrology; ice sheets; melting; meltwater; Paakitsoq; pressure; seasonal variations; subglacial environment; velocity DO - http://dx.doi.org/10.1038/nature13796 ER - TY - JOUR T1 - Structure and evolution of the lunar Procellarum region as revealed by GRAIL gravity data AN - 1648905519; 2015-009607 JF - Nature (London) AU - Andrews-Hanna, Jeffrey C AU - Besserer, Jonathan AU - Head, James W, III AU - Howett, Carly J A AU - Kiefer, Walter S AU - Lucey, Paul J AU - McGovern, Patrick J AU - Melosh, H Jay AU - Neumann, Gregory A AU - Phillips, Roger J AU - Schenk, Paul M AU - Smith, David E AU - Solomon, Sean C AU - Zuber, Maria T Y1 - 2014/10/02/ PY - 2014 DA - 2014 Oct 02 SP - 68 EP - 71 PB - Macmillan Journals, London VL - 514 IS - 7520 SN - 0028-0836, 0028-0836 KW - patterns KW - rift zones KW - Moon KW - magmatism KW - thermal properties KW - geophysical methods KW - Oceanus Procellarum KW - GRAIL KW - gravity methods KW - gravity anomalies KW - KREEP KW - intrusions KW - dikes KW - lunar crust KW - Bouguer anomalies KW - tectonics KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1648905519?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nature+%28London%29&rft.atitle=Structure+and+evolution+of+the+lunar+Procellarum+region+as+revealed+by+GRAIL+gravity+data&rft.au=Andrews-Hanna%2C+Jeffrey+C%3BBesserer%2C+Jonathan%3BHead%2C+James+W%2C+III%3BHowett%2C+Carly+J+A%3BKiefer%2C+Walter+S%3BLucey%2C+Paul+J%3BMcGovern%2C+Patrick+J%3BMelosh%2C+H+Jay%3BNeumann%2C+Gregory+A%3BPhillips%2C+Roger+J%3BSchenk%2C+Paul+M%3BSmith%2C+David+E%3BSolomon%2C+Sean+C%3BZuber%2C+Maria+T&rft.aulast=Andrews-Hanna&rft.aufirst=Jeffrey&rft.date=2014-10-02&rft.volume=514&rft.issue=7520&rft.spage=68&rft.isbn=&rft.btitle=&rft.title=Nature+%28London%29&rft.issn=00280836&rft_id=info:doi/10.1038%2Fnature13697 L2 - http://www.nature.com/nature/index.html LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. N1 - Date revised - 2015-01-01 N1 - Number of references - 72 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2015-04-16 N1 - CODEN - NATUAS N1 - SubjectsTermNotLitGenreText - Bouguer anomalies; dikes; geophysical methods; GRAIL; gravity anomalies; gravity methods; intrusions; KREEP; lunar crust; magmatism; Moon; Oceanus Procellarum; patterns; rift zones; tectonics; thermal properties DO - http://dx.doi.org/10.1038/nature13697 ER - TY - JOUR T1 - The photochemistry of pyrimidine in realistic astrophysical ices and the production of nucleobases AN - 1832603964; 712951-46 AB - Nucleobases, together with deoxyribose/ribose and phosphoric acid, are the building blocks of DNA and RNA for all known life. The presence of nucleobase-like compounds in carbonaceous chondrites delivered to the Earth raises the question of an extraterrestrial origin for the molecules that triggered life on our planet. Whether these molecules are formed in interstellar/protostellar environments, in small parent bodies in the solar system, or both, is currently unclear. Recent experiments show that the UV irradiation of pyrimidine (C (sub 4) H (sub 4) N (sub 2) ) in H (sub 2) O-rich ice mixtures that contain NH (sub 3) , CH (sub 3) OH, or CH (sub 4) leads to the formation of the pyrimidine-based nucleobases uracil, cytosine, and thymine. In this work, we discuss the low-temperature UV irradiation of pyrimidine in realistic astrophysical ice mixtures containing H (sub 2) O, CH (sub 3) OH, and NH (sub 3) , with or without CH (sub 4) , to search for the production of nucleobases and other prebiotic compounds. These experiments show the presence of uracil, urea, glycerol, hexamethylenetetramine, small amino acids, and small carboxylic acids in all samples. Cytosine was only found in one sample produced from ices irradiated with a higher UV dose, while thymine was not found in any sample, even after irradiation with a higher UV dose. Results are discussed to evaluate the role of the photochemistry of pyrimidine in the inventory of organic molecules detected in meteorites and their astrophysical/astrobiological implications. Copyright (Copyright) 2014. The American Astronomical Society. All rights reserved. JF - The Astrophysical Journal AU - Nuevo, Michel AU - Materese, Christopher K AU - Sandford, Scott A Y1 - 2014/10/01/ PY - 2014 DA - 2014 Oct 01 EP - Paper no. 125 PB - IOP Publishing for American Astronomical Society, Bristol VL - 793 IS - 2 SN - 0004-637X, 0004-637X KW - ammonium KW - irradiation KW - nucleobases KW - prebiotic chemistry KW - aliphatic hydrocarbons KW - astrobiology KW - temperature KW - urea KW - electromagnetic radiation KW - ice KW - amino acids KW - carboxylic acids KW - alcohols KW - pyrimidine KW - water KW - experimental studies KW - methane KW - organic minerals KW - photochemistry KW - cosmochemistry KW - alkanes KW - ultraviolet radiation KW - methanol KW - organic compounds KW - organic acids KW - nucleic acids KW - RNA KW - low temperature KW - hydrocarbons KW - DNA KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832603964?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+Astrophysical+Journal&rft.atitle=The+photochemistry+of+pyrimidine+in+realistic+astrophysical+ices+and+the+production+of+nucleobases&rft.au=Nuevo%2C+Michel%3BMaterese%2C+Christopher+K%3BSandford%2C+Scott+A&rft.aulast=Nuevo&rft.aufirst=Michel&rft.date=2014-10-01&rft.volume=793&rft.issue=2&rft.spage=&rft.isbn=&rft.btitle=&rft.title=The+Astrophysical+Journal&rft.issn=0004637X&rft_id=info:doi/10.1088%2F0004-637X%2F793%2F2%2F125 L2 - http://iopscience.iop.org/0004-637X LA - English DB - GeoRef N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by IOP Publishing Ltd., London, United Kingdom N1 - Number of references - 55 N1 - Document feature - illus. N1 - Last updated - 2017-01-24 N1 - SubjectsTermNotLitGenreText - alcohols; aliphatic hydrocarbons; alkanes; amino acids; ammonium; astrobiology; carboxylic acids; cosmochemistry; DNA; electromagnetic radiation; experimental studies; hydrocarbons; ice; irradiation; low temperature; methane; methanol; nucleic acids; nucleobases; organic acids; organic compounds; organic minerals; photochemistry; prebiotic chemistry; pyrimidine; RNA; temperature; ultraviolet radiation; urea; water DO - http://dx.doi.org/10.1088/0004-637X/793/2/125 ER - TY - JOUR T1 - Satellite-altitude horizontal magnetic gradient anomalies used to define the Kursk magnetic anomaly AN - 1832599009; 712382-14 AB - The Kursk Magnetic Anomaly (KMA), Russia, is one of the world's largest magnetic anomalies. We used satellite altitude horizontal gradient magnetic anomaly data to study this feature. There are two main objectives of our research; the first, to determine if the technique of the horizontal magnetic anomaly gradient analysis can be applied to CHAMP satellite altitude data to define the outline of the source of the Kursk Magnetic Anomaly (KMA). Another objective is to use the ten years of CHAMP data to reproduce the horizontal magnetic anomaly gradient data that will be measured by the two lower orbiting ESA/Swarm mission. We will be able to evaluate the application of these newer satellite altitude data for studying large areas with significant crustal magnetization. While we have acquired sufficient CHAMP orbital data to compute a horizontal gradient anomaly map from these ten years of data; the future ESA/Swarm mission will, however, allow us to compute directly the horizontal magnetic anomaly without orbital altitude and/or magnetic secular variations; however the east-west gradient that the Swarm is measuring will minimize, but not eliminate, the difference in external fields between the two lower satellites. One will still need to use relatively quiet data (e.g., K (sub p) < 1) for crustal field mapping. Our results, developed from interpreting the satellite horizontal magnetic anomaly data, indicate that the source of the KMA is bowl shaped body open to the northwest covering an area of approximately 190,000 km (super 2) . Abstract Copyright (2014) Elsevier, B.V. JF - Journal of Applied Geophysics AU - Taylor, P T AU - Kis, K I AU - Wittmann, G Y1 - 2014/10// PY - 2014 DA - October 2014 SP - 133 EP - 139 PB - Elsevier, Amsterdam VL - 109 SN - 0926-9851, 0926-9851 KW - Kursk magnetic anomaly KW - Commonwealth of Independent States KW - geophysical methods KW - CHAMP KW - magnetic methods KW - Europe KW - Russian Federation KW - satellite methods KW - remote sensing KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832599009?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Applied+Geophysics&rft.atitle=Satellite-altitude+horizontal+magnetic+gradient+anomalies+used+to+define+the+Kursk+magnetic+anomaly&rft.au=Taylor%2C+P+T%3BKis%2C+K+I%3BWittmann%2C+G&rft.aulast=Taylor&rft.aufirst=P&rft.date=2014-10-01&rft.volume=109&rft.issue=&rft.spage=133&rft.isbn=&rft.btitle=&rft.title=Journal+of+Applied+Geophysics&rft.issn=09269851&rft_id=info:doi/10.1016%2Fj.jappgeo.2014.07.018 L2 - http://www.sciencedirect.com/science/journal/09269851 LA - English DB - GeoRef N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Number of references - 34 N1 - Document feature - illus. incl. geol. sketch maps N1 - Last updated - 2017-01-24 N1 - SubjectsTermNotLitGenreText - CHAMP; Commonwealth of Independent States; Europe; geophysical methods; Kursk magnetic anomaly; magnetic methods; remote sensing; Russian Federation; satellite methods DO - http://dx.doi.org/10.1016/j.jappgeo.2014.07.018 ER - TY - JOUR T1 - Using EOS Data to Improve Aerosol Forecasting: The International Cooperative for Aerosol Prediction (ICAP) AN - 1705078099; PQ0001809049 AB - Aerosols are airborne particles and droplets so tiny that they can remain suspended in the atmosphere for long periods of time and be transported over long distances-even circumnavigating the globe. Their sources are both natural and man-made, and include windblown dust from deserts, smoke from wildfires, sulfurous particles from volcanic eruptions, and sulfurous and carbonaceous particles produced by fossil fuel combustion. Aerosols affect Earths climate by reflecting and absorbing incoming solar radiation, and by interacting with clouds and hence changing their radiative properties and dynamics. Near Earth's surface, aerosol particles are pollutants that exacerbate air quality problems. Higher in the atmosphere, aerosols ejected from volcanoes can disrupt air traffic-as the 2010 eruption of the Eyjafjallajokull volcano in Iceland made dramatically clear. JF - Earth Observer AU - Colarco, Peter AU - Benedetti, Angela AU - Reid, Jeffrey AU - Tanaka, Taichu AD - NASA's Goddard Space Flight Center, peter.r.colarco@nasa.gov Y1 - 2014/10// PY - 2014 DA - Oct 2014 SP - 14 EP - 19 PB - EOS Project Science Office, NASA Goddard Space Flight Center Greenbelt MD 20771 USA VL - 26 IS - 5 KW - Pollution Abstracts KW - Prediction KW - Aerosols KW - Eruptions KW - Fossil fuels KW - Climate KW - ANE, Atlantic, Iceland KW - Volcanoes KW - Air quality KW - Particulates KW - Solar radiation KW - Atmosphere KW - Dust KW - Combustion KW - Clouds KW - Smoke KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1705078099?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Earth+Observer&rft.atitle=Using+EOS+Data+to+Improve+Aerosol+Forecasting%3A+The+International+Cooperative+for+Aerosol+Prediction+%28ICAP%29&rft.au=Colarco%2C+Peter%3BBenedetti%2C+Angela%3BReid%2C+Jeffrey%3BTanaka%2C+Taichu&rft.aulast=Colarco&rft.aufirst=Peter&rft.date=2014-10-01&rft.volume=26&rft.issue=5&rft.spage=14&rft.isbn=&rft.btitle=&rft.title=Earth+Observer&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-08-01 N1 - Last updated - 2015-11-16 N1 - SubjectsTermNotLitGenreText - Prediction; Aerosols; Eruptions; Fossil fuels; Climate; Volcanoes; Air quality; Particulates; Solar radiation; Atmosphere; Dust; Combustion; Smoke; Clouds; ANE, Atlantic, Iceland ER - TY - JOUR T1 - Growth of Jupiter; enhancement of core accretion by a voluminous low-mass envelope AN - 1696877974; 2015-069017 JF - Icarus AU - D'Angelo, Gennaro AU - Weidenschilling, Stuart J AU - Lissauer, Jack J AU - Bodenheimer, Peter Y1 - 2014/10// PY - 2014 DA - October 2014 SP - 298 EP - 312 PB - Elsevier, New York, NY VL - 241 SN - 0019-1035, 0019-1035 KW - fragmentation KW - accretion KW - numerical models KW - density KW - orbits KW - sedimentation KW - Jupiter KW - planetesimals KW - impacts KW - interplanetary dust KW - size KW - giant planets KW - mass KW - planets KW - cosmic dust KW - volume KW - core KW - outer planets KW - coagulation KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1696877974?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Icarus&rft.atitle=Growth+of+Jupiter%3B+enhancement+of+core+accretion+by+a+voluminous+low-mass+envelope&rft.au=D%27Angelo%2C+Gennaro%3BWeidenschilling%2C+Stuart+J%3BLissauer%2C+Jack+J%3BBodenheimer%2C+Peter&rft.aulast=D%27Angelo&rft.aufirst=Gennaro&rft.date=2014-10-01&rft.volume=241&rft.issue=&rft.spage=298&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2014.06.029 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. N1 - Date revised - 2015-01-01 N1 - Number of references - 67 N1 - PubXState - NY N1 - Document feature - illus. N1 - Last updated - 2015-07-17 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - accretion; coagulation; core; cosmic dust; density; fragmentation; giant planets; impacts; interplanetary dust; Jupiter; mass; numerical models; orbits; outer planets; planetesimals; planets; sedimentation; size; volume DO - http://dx.doi.org/10.1016/j.icarus.2014.06.029 ER - TY - JOUR T1 - Lunar polar craters; icy, rough or just sloping? AN - 1696876033; 2015-069001 JF - Icarus AU - Eke, Vincent R AU - Bartram, Sarah A AU - Lane, David A AU - Smith, David AU - Teodoro, Luis F A Y1 - 2014/10// PY - 2014 DA - October 2014 SP - 66 EP - 78 PB - Elsevier, New York, NY VL - 241 SN - 0019-1035, 0019-1035 KW - polarization KW - impact features KW - Lunar Reconnaissance Orbiter KW - slopes KW - Mini-SAR instrument KW - Chandrayaan-1 Mission KW - digital terrain models KW - lunar craters KW - temperature KW - topography KW - SAR KW - mosaics KW - ice KW - permanently shadowed regions KW - algorithms KW - surface properties KW - polar regions KW - Moon KW - roughness KW - anomalies KW - pixels KW - depth KW - size KW - impact craters KW - regolith KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1696876033?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Icarus&rft.atitle=Lunar+polar+craters%3B+icy%2C+rough+or+just+sloping%3F&rft.au=Eke%2C+Vincent+R%3BBartram%2C+Sarah+A%3BLane%2C+David+A%3BSmith%2C+David%3BTeodoro%2C+Luis+F+A&rft.aulast=Eke&rft.aufirst=Vincent&rft.date=2014-10-01&rft.volume=241&rft.issue=&rft.spage=66&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2014.06.021 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. N1 - Date revised - 2015-01-01 N1 - Number of references - 44 N1 - PubXState - NY N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Includes appendices N1 - Last updated - 2015-11-19 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - algorithms; anomalies; Chandrayaan-1 Mission; depth; digital terrain models; ice; impact craters; impact features; lunar craters; Lunar Reconnaissance Orbiter; Mini-SAR instrument; Moon; mosaics; permanently shadowed regions; pixels; polar regions; polarization; regolith; roughness; SAR; size; slopes; surface properties; temperature; topography DO - http://dx.doi.org/10.1016/j.icarus.2014.06.021 ER - TY - JOUR T1 - Cassini-VIMS observations of Saturn's main rings; I, Spectral properties and temperature radial profiles variability with phase angle and elevation AN - 1696875636; 2015-069000 JF - Icarus AU - Filacchione, Gianrico AU - Ciarniello, M AU - Capaccioni, F AU - Clark, Roger N AU - Nicholson, P D AU - Hedman, Matthew M AU - Cuzzi, J N AU - Cruikshank, D P AU - Dalle Ore, C M AU - Brown, R H AU - Cerroni, P AU - Altobelli, Nicolas AU - Spilker, L J Y1 - 2014/10// PY - 2014 DA - October 2014 SP - 45 EP - 65 PB - Elsevier, New York, NY VL - 241 SN - 0019-1035, 0019-1035 KW - albedo KW - optical spectra KW - aliphatic hydrocarbons KW - temperature KW - infrared spectra KW - giant planets KW - Saturn KW - photometry KW - Cassini-Huygens Mission KW - phase angle KW - ice KW - spectra KW - outer planets KW - diurnal variations KW - visual and infrared mapping spectrometers KW - water KW - grain size KW - elevation KW - Cassini-VIMS KW - thermal properties KW - atmosphere KW - planets KW - planetary rings KW - organic compounds KW - hydrocarbons KW - polycyclic aromatic hydrocarbons KW - seasonal variations KW - regolith KW - particles KW - aromatic hydrocarbons KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1696875636?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Icarus&rft.atitle=Cassini-VIMS+observations+of+Saturn%27s+main+rings%3B+I%2C+Spectral+properties+and+temperature+radial+profiles+variability+with+phase+angle+and+elevation&rft.au=Filacchione%2C+Gianrico%3BCiarniello%2C+M%3BCapaccioni%2C+F%3BClark%2C+Roger+N%3BNicholson%2C+P+D%3BHedman%2C+Matthew+M%3BCuzzi%2C+J+N%3BCruikshank%2C+D+P%3BDalle+Ore%2C+C+M%3BBrown%2C+R+H%3BCerroni%2C+P%3BAltobelli%2C+Nicolas%3BSpilker%2C+L+J&rft.aulast=Filacchione&rft.aufirst=Gianrico&rft.date=2014-10-01&rft.volume=241&rft.issue=&rft.spage=45&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2014.06.001 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. N1 - Date revised - 2015-01-01 N1 - Number of references - 75 N1 - PubXState - NY N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2015-11-19 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - albedo; aliphatic hydrocarbons; aromatic hydrocarbons; atmosphere; Cassini-Huygens Mission; Cassini-VIMS; diurnal variations; elevation; giant planets; grain size; hydrocarbons; ice; infrared spectra; optical spectra; organic compounds; outer planets; particles; phase angle; photometry; planetary rings; planets; polycyclic aromatic hydrocarbons; regolith; Saturn; seasonal variations; spectra; temperature; thermal properties; visual and infrared mapping spectrometers; water DO - http://dx.doi.org/10.1016/j.icarus.2014.06.001 ER - TY - JOUR T1 - Thermophysical property variations across Dione and Rhea AN - 1696875497; 2015-069013 JF - Icarus AU - Howett, C J A AU - Spencer, J R AU - Hurford, T AU - Verbiscer, A AU - Segura, M Y1 - 2014/10// PY - 2014 DA - October 2014 SP - 239 EP - 247 PB - Elsevier, New York, NY VL - 241 SN - 0019-1035, 0019-1035 KW - albedo KW - icy satellites KW - thermal inertia KW - Inktomi Crater KW - Rhea Satellite KW - ejecta KW - infrared spectra KW - Cassini-Huygens Mission KW - thermal anomalies KW - thermomechanical properties KW - spectra KW - Dione Satellite KW - satellites KW - electrons KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1696875497?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Icarus&rft.atitle=Thermophysical+property+variations+across+Dione+and+Rhea&rft.au=Howett%2C+C+J+A%3BSpencer%2C+J+R%3BHurford%2C+T%3BVerbiscer%2C+A%3BSegura%2C+M&rft.aulast=Howett&rft.aufirst=C+J&rft.date=2014-10-01&rft.volume=241&rft.issue=&rft.spage=239&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2014.05.047 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. N1 - Date revised - 2015-01-01 N1 - Number of references - 38 N1 - PubXState - NY N1 - Document feature - illus. incl. 1 table, sketch maps N1 - Last updated - 2015-07-17 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - albedo; Cassini-Huygens Mission; Dione Satellite; ejecta; electrons; icy satellites; infrared spectra; Inktomi Crater; Rhea Satellite; satellites; spectra; thermal anomalies; thermal inertia; thermomechanical properties DO - http://dx.doi.org/10.1016/j.icarus.2014.05.047 ER - TY - JOUR T1 - Mapping minerals with light AN - 1680751291; 2015-044276 JF - Earth Imaging Journal AU - Riebeek, Holli Y1 - 2014/10// PY - 2014 DA - October 2014 SP - 26 EP - 27 PB - Earthwide Communications, Greeley, CO VL - 11 IS - 5 SN - 1548-0720, 1548-0720 KW - multispectral analysis KW - mineral exploration KW - imagery KW - Far East KW - northwestern China KW - Asia KW - satellite methods KW - China KW - remote sensing KW - 20:Applied geophysics KW - 26A:Economic geology, general, deposits UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1680751291?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Earth+Imaging+Journal&rft.atitle=Mapping+minerals+with+light&rft.au=Riebeek%2C+Holli&rft.aulast=Riebeek&rft.aufirst=Holli&rft.date=2014-10-01&rft.volume=11&rft.issue=5&rft.spage=26&rft.isbn=&rft.btitle=&rft.title=Earth+Imaging+Journal&rft.issn=15480720&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. N1 - Date revised - 2015-01-01 N1 - PubXState - CO N1 - Document feature - illus. N1 - Last updated - 2016-10-25 N1 - SubjectsTermNotLitGenreText - Asia; China; Far East; imagery; mineral exploration; multispectral analysis; northwestern China; remote sensing; satellite methods ER - TY - JOUR T1 - Caterpillar-like ice motion in the ablation zone of the Greenland ice sheet AN - 1656036742; 2015-013699 AB - Current understanding of ice dynamics predicts that increasing availability and variability of meltwater will have an impact on basal motion and therefore on the evolution and future behavior of the Greenland ice sheet. We present measurements of ice deformation, subglacial water pressure, and surface velocity that show periodic and episodic variations on several time scales (seasonal, multiday, and diurnal). These variations, observed with GPS and sensors at different depths throughout the ice column, are not synchronous but show delayed responses of ice deformation with increasing depth and basal water pressure in antiphase with surface velocity. With the help of a Full-Stokes ice flow model, these observations are explained as ice motion in a caterpillar-like fashion. Caused by patches of different basal slipperiness, horizontal stress transfer through the stiff central part of the ice body leads to spatially varying surface velocities and ice deformation patterns. Variation of this basal slipperiness induces characteristic patterns of ice deformation variability that explain the observed behavior. Ice flow in the ablation zone of the Greenland ice sheet is therefore controlled by activation of basal patches by varying slipperiness in the course of a melt season, leading to caterpillar-like ice motion superposed on the classical shear deformation. Abstract Copyright (2014), . American Geophysical Union. All Rights Reserved. JF - Journal of Geophysical Research: Earth Surface AU - Ryser, C AU - Luethi, M P AU - Andrews, L C AU - Catania, G A AU - Funk, M AU - Hawley, R AU - Hoffman, M AU - Neumann, T A Y1 - 2014/10// PY - 2014 DA - October 2014 SP - 2258 EP - 2271 PB - Wiley-Blackwell for American Geophysical Union, Washington, DC VL - 119 IS - 10 SN - 2169-9003, 2169-9003 KW - ablation KW - Arctic region KW - Greenland ice sheet KW - ice cover KW - glaciers KW - ice sheets KW - climate change KW - ice movement KW - Greenland KW - mass balance KW - climate effects KW - glacial geology KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1656036742?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research%3A+Earth+Surface&rft.atitle=Caterpillar-like+ice+motion+in+the+ablation+zone+of+the+Greenland+ice+sheet&rft.au=Ryser%2C+C%3BLuethi%2C+M+P%3BAndrews%2C+L+C%3BCatania%2C+G+A%3BFunk%2C+M%3BHawley%2C+R%3BHoffman%2C+M%3BNeumann%2C+T+A&rft.aulast=Ryser&rft.aufirst=C&rft.date=2014-10-01&rft.volume=119&rft.issue=10&rft.spage=2258&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Earth+Surface&rft.issn=21699003&rft_id=info:doi/10.1002%2F2013JF003067 L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%292169-9011/issues?year=2013 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2015-01-01 N1 - Number of references - 40 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2015-02-19 N1 - SubjectsTermNotLitGenreText - ablation; Arctic region; climate change; climate effects; glacial geology; glaciers; Greenland; Greenland ice sheet; ice cover; ice movement; ice sheets; mass balance DO - http://dx.doi.org/10.1002/2013JF003067 ER - TY - JOUR T1 - The impact of the assimilation of Aquarius sea surface salinity data in the GEOS ocean data assimilation system AN - 1648907714; 2015-011763 AB - Ocean salinity and temperature differences drive thermohaline circulation. These properties also play a key role in the ocean-atmosphere coupling. With the availability of L-band space-borne observations, it becomes possible to provide global scale sea surface salinity (SSS) distribution. This study analyzes globally the along-track (Level 2) Aquarius SSS retrievals obtained using both passive and active L-band observations. Aquarius along-track retrieved SSS are assimilated into the ocean data assimilation component of Version 5 of the Goddard Earth Observing System (GEOS-5) assimilation and forecast model. We present a methodology to correct the large biases and errors apparent in Version 2.0 of the Aquarius SSS retrieval algorithm and map the observed Aquarius SSS retrieval into the ocean model's bulk salinity in the topmost layer. The impact of the assimilation of the corrected SSS on the salinity analysis is evaluated by comparisons with in situ salinity measurements from Argo. The results show a significant reduction of the global biases and RMS of observations-minus-forecast differences at in situ locations. The most striking results are found in the tropics and southern latitudes. Our results highlight the complementary role and problems that arise during the assimilation of salinity information from in situ (Argo) and space-borne SSS retrievals. Abstract Copyright (2014), . American Geophysical Union. All Rights Reserved. JF - Journal of Geophysical Research: Oceans AU - Vernieres, G AU - Kovach, R AU - Keppenne, C AU - Akella, S AU - Brucker, L AU - Dinnat, E Y1 - 2014/10// PY - 2014 DA - October 2014 SP - 6974 EP - 6987 PB - Wiley-Blackwell for American Geophysical Union, Washington, DC VL - 119 IS - 10 SN - 2169-9275, 2169-9275 KW - ocean circulation KW - sea-surface salinity KW - sea water KW - sea surface water KW - air-sea interface KW - salinity KW - satellite methods KW - temperature KW - thermohaline circulation KW - sea-surface temperature KW - world ocean KW - remote sensing KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1648907714?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research%3A+Oceans&rft.atitle=The+impact+of+the+assimilation+of+Aquarius+sea+surface+salinity+data+in+the+GEOS+ocean+data+assimilation+system&rft.au=Vernieres%2C+G%3BKovach%2C+R%3BKeppenne%2C+C%3BAkella%2C+S%3BBrucker%2C+L%3BDinnat%2C+E&rft.aulast=Vernieres&rft.aufirst=G&rft.date=2014-10-01&rft.volume=119&rft.issue=10&rft.spage=6974&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Oceans&rft.issn=21699275&rft_id=info:doi/10.1002%2F2014JC010006 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2015-01-01 N1 - Number of references - 45 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2015-01-29 N1 - SubjectsTermNotLitGenreText - air-sea interface; ocean circulation; remote sensing; salinity; satellite methods; sea surface water; sea water; sea-surface salinity; sea-surface temperature; temperature; thermohaline circulation; world ocean DO - http://dx.doi.org/10.1002/2014JC010006 ER - TY - JOUR T1 - Sea surface salinity variability in the East China Sea observed by the Aquarius Instrument AN - 1648907553; 2015-011766 AB - This study demonstrates that the spaceborne Aquarius instrument is able to monitor the sea surface salinity (SSS) variations in the East China Sea (ECS) with the spatial resolution of about 150 km at 7 day interval, where routine observations are difficult. The two geophysical contaminants enter the sidelobes of the Aquarius antenna and bias the coastal SSS low: the emission from the land surface and the radiofrequency interference (RFI). Away from about one Aquarius pixel (150 km) from the coastline, the Aquarius SSS is fairly insensitive (less than about 0.2 psu) to the radiometric details of the method to correct for the land emission. The ascending orbits appear to be affected by unfiltered RFI much less than the descending tracks. The Aquarius SSS along the ascending tracks is low over the ECS by 0.40-0.93 psu (with respect to the in situ data during the two separate 7 day periods) and is biased low by 0.41-1.07 psu (accuracy, or the time-mean of difference from the regional model along three Aquarius tracks over a 18 month period). The presence of the ascending and descending differences in the Aquarius SSS, and the spatially widespread bias suggest that the bias is attributed to the unfiltered RFI originating from strong point sources (rather than to the land contamination from weak distributed sources, or to other seasonally varying geophysical contaminants). Despite the bias, the Aquarius data describe well the temporal and spatial variability of the ECS SSS. The temporal trend and magnitude of salinity changes agree remarkably between Aquarius and a regional numerical model, during both the freshwater discharge season from the Yangtze river and the rest of the year. The precision of the Aquarius observation in the ECS is comparable with the Aquarius mission requirement (0.2 psu one-sigma for a monthly average over the open ocean). The river discharge rate correlates with the Aquarius SSS with the coefficient of 0.71 on a seasonal scale with the discharge leading the SSS changes. The Aquarius SSS increases away from the coast, in response to the river outflow. The interannual changes in the Aquarius SSS capture the effect of the regional drought in summer 2013. Abstract Copyright (2014), . American Geophysical Union. All Rights Reserved. JF - Journal of Geophysical Research: Oceans AU - Kim, Seung-bum AU - Lee, Jae-Hak AU - de Matthaeis, Paolo AU - Yueh, Simon AU - Hong, Chang-Su AU - Lee, Joon-Ho AU - Lagerloef, Gary Y1 - 2014/10// PY - 2014 DA - October 2014 SP - 7016 EP - 7028 PB - Wiley-Blackwell for American Geophysical Union, Washington, DC VL - 119 IS - 10 SN - 2169-9275, 2169-9275 KW - East China Sea KW - sea-surface salinity KW - sea water KW - sea surface water KW - salinity KW - satellite methods KW - West Pacific KW - temperature KW - North Pacific KW - Pacific Ocean KW - sea-surface temperature KW - Northwest Pacific KW - remote sensing KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1648907553?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research%3A+Oceans&rft.atitle=Sea+surface+salinity+variability+in+the+East+China+Sea+observed+by+the+Aquarius+Instrument&rft.au=Kim%2C+Seung-bum%3BLee%2C+Jae-Hak%3Bde+Matthaeis%2C+Paolo%3BYueh%2C+Simon%3BHong%2C+Chang-Su%3BLee%2C+Joon-Ho%3BLagerloef%2C+Gary&rft.aulast=Kim&rft.aufirst=Seung-bum&rft.date=2014-10-01&rft.volume=119&rft.issue=10&rft.spage=7016&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Oceans&rft.issn=21699275&rft_id=info:doi/10.1002%2F2014JC009983 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2015-01-01 N1 - Number of references - 40 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables, sketch map N1 - Last updated - 2015-01-29 N1 - SubjectsTermNotLitGenreText - East China Sea; North Pacific; Northwest Pacific; Pacific Ocean; remote sensing; salinity; satellite methods; sea surface water; sea water; sea-surface salinity; sea-surface temperature; temperature; West Pacific DO - http://dx.doi.org/10.1002/2014JC009983 ER - TY - JOUR T1 - The Orgueil Meteorite; 150 years of history AN - 1645572162; 2015-004283 AB - The goal of this paper is to summarize 150 yr of history of a very special meteorite. The Orgueil meteorite fell near Montauban in southwestern France on May 14, 1864. The bolide, which was the size of the full Moon, was seen across Western France, and almost immediately made the news in local and Parisian newspapers. Within a few weeks of the fall, a great diversity of analyses were performed under the authority of Gabriel Auguste Daubree, geology professor at the Paris Museum, and published in the Comptes Rendus de l'Academie des Sciences. The skilled scientists reported the presence of iron sulfides, hydrated silicates, and carbonates in Orgueil. They also characterized ammonium salts which are now gone, and observed sulfates being remobilized at the surface of the stone. They identified the high water and carbon contents, and noted similarities with the Alais meteorite, which had fallen in 1806, 300 km away. While Daubree and his colleagues noted the similarity of the Orgueil organic matter with some terrestrial humus, they were cautious not to make a direct link with living organisms. One century later, Nagy and Claus were less prudent and announced the discovery of "organized" elements in some samples of Orgueil. Their observations were quickly discredited by Edward Anders and others who also discovered that some pollen grains were intentionally placed into the rock back in the 1860s. Orgueil is now one of the most studied meteorites, indeed one of the most studied rocks of any kind. Not only does it contain a large diversity of carbon-rich compounds, which help address the question of organo-synthesis in the early solar system but its chemical composition is also close to that of the Sun's photosphere and serves as a cosmic reference. Secondary minerals, which make up 99% of the volume of Orgueil, were probably formed during hydrothermal alteration on the parent-body within the first few million years of the solar system; their study is essential to our understanding of fluid-rock interaction in asteroids and comets. Finally, the Orgueil meteorite probably originated from a volatile-rich "cometary" outer solar system body as indicated by its orbit. Because it bears strong similarities to other carbonaceous chondrites that originated on dark asteroids, this cometary connection supports the idea of a continuum between dark asteroids and comets. Abstract Copyright The Meteoritical Society, 2014. JF - Meteoritics & Planetary Science AU - Gounelle, Matthieu AU - Zolensky, Michael E Y1 - 2014/10// PY - 2014 DA - October 2014 SP - 1769 EP - 1794 PB - Meteoritical Society, Fayetteville, AR VL - 49 IS - 10 SN - 1086-9379, 1086-9379 KW - alteration KW - terrestrial environment KW - stony meteorites KW - Orgueil Meteorite KW - asteroids KW - isotopes KW - orbits KW - Europe KW - metasomatism KW - France KW - meteorites KW - Daubree, Gabriel Auguste KW - water-rock interaction KW - hydrothermal alteration KW - chondrites KW - chemical composition KW - Montauban France KW - carbonaceous composition KW - CI chondrites KW - breccia KW - Western Europe KW - sulfates KW - secondary minerals KW - parent bodies KW - trajectories KW - carbonaceous chondrites KW - veins KW - meteorite falls KW - history KW - volatiles KW - comets KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1645572162?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=The+Orgueil+Meteorite%3B+150+years+of+history&rft.au=Gounelle%2C+Matthieu%3BZolensky%2C+Michael+E&rft.aulast=Gounelle&rft.aufirst=Matthieu&rft.date=2014-10-01&rft.volume=49&rft.issue=10&rft.spage=1769&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fmaps.12351 L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2015-01-01 N1 - Number of references - 127 N1 - PubXState - AR N1 - Document feature - illus. N1 - Last updated - 2015-01-15 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - alteration; asteroids; breccia; carbonaceous chondrites; carbonaceous composition; chemical composition; chondrites; CI chondrites; comets; Daubree, Gabriel Auguste; Europe; France; history; hydrothermal alteration; isotopes; metasomatism; meteorite falls; meteorites; Montauban France; orbits; Orgueil Meteorite; parent bodies; secondary minerals; stony meteorites; sulfates; terrestrial environment; trajectories; veins; volatiles; water-rock interaction; Western Europe DO - http://dx.doi.org/10.1111/maps.12351 ER - TY - JOUR T1 - Regional projections of the likelihood of very large wildland fires under a changing climate in the contiguous Western United States AN - 1642304668; 20849704 AB - Seasonal changes in the climatic potential for very large wildfires (VLWF greater than or equal to 50,000 ac~20,234 ha) across the western contiguous United States are projected over the 21st century using generalized linear models and downscaled climate projections for two representative concentration pathways (RCPs). Significant (p less than or equal to 0.05) increases in VLWF probability for climate of the mid-21st century (2031-2060) relative to contemporary climate are found, for both RCP 4.5 and 8.5. The largest differences are in the Eastern Great Basin, Northern Rockies, Pacific Northwest, Rocky Mountains, and Southwest. Changes in seasonality and frequency of VLWFs d7epend on changes in the future climate space. For example, flammability-limited areas such as the Pacific Northwest show that (with high model agreement) the frequency of weeks with VLWFs in a given year is 2-2.7 more likely. However, frequency of weeks with at least one VLWF in fuel-limited systems like the Western Great Basin is 1.3 times more likely (with low model agreement). Thus, areas where fire is directly associated with hot and dry climate, as opposed to experiencing lagged effects from previous years, experience more change in the likelihood of VLWF in future projections. The results provide a quantitative foundation for management to mitigate the effects of VLWFs. JF - Climatic Change AU - Stavros, ENatasha AU - Abatzoglou, John T AU - McKenzie, Donald AU - Larkin, Narasimhan K AD - Jet Propulsion Laboratory, California Institute of Technology, 4,800 Oak Grove Drive, MS 233-300, Pasadena, CA, 91109-8099, USA natasha.stavros@jpl.nasa.gov Y1 - 2014/10// PY - 2014 DA - October 2014 SP - 455 EP - 468 PB - Springer Science+Business Media, Van Godewijckstraat 30 Dordrecht 3311 GX Netherlands VL - 126 IS - 3-4 SN - 0165-0009, 0165-0009 KW - Environmental Engineering Abstracts (EN); CSA / ASCE Civil Engineering Abstracts (CE); ANTE: Abstracts in New Technologies and Engineering (AN) KW - Mountains KW - Fires KW - Projection KW - Northwest KW - Climate KW - Foundations KW - Drying KW - Basins KW - Yes:(AN) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1642304668?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Climatic+Change&rft.atitle=Regional+projections+of+the+likelihood+of+very+large+wildland+fires+under+a+changing+climate+in+the+contiguous+Western+United+States&rft.au=Stavros%2C+ENatasha%3BAbatzoglou%2C+John+T%3BMcKenzie%2C+Donald%3BLarkin%2C+Narasimhan+K&rft.aulast=Stavros&rft.aufirst=ENatasha&rft.date=2014-10-01&rft.volume=126&rft.issue=3-4&rft.spage=455&rft.isbn=&rft.btitle=&rft.title=Climatic+Change&rft.issn=01650009&rft_id=info:doi/10.1007%2Fs10584-014-1229-6 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-12-01 N1 - Number of references - 41 N1 - Last updated - 2017-01-05 DO - http://dx.doi.org/10.1007/s10584-014-1229-6 ER - TY - JOUR T1 - A ULF wave driver of ring current energization AN - 1635030746; 20912434 AB - ULF wave radial diffusion plays an important role in the transport of energetic electrons in the outer radiation belt, yet similar ring current transport is seldom considered even though ions satisfy a nearly identical drift resonance condition albeit without the relativistic correction. By examining the correlation between ULF wave power and the response of the ring current, characterized by Dst, we demonstrate a definite correlation between ULF wave power and Dst. Significantly, the lagged correlation peaks such that ULF waves precede the response of the ring current and Dst. We suggest that this correlation is the result of enhanced radial transport and energization of ring current ions through drift resonance and ULF wave radial diffusion of ring current ions. An analysis and comparison of the ion and electron diffusion coefficients further support this conclusion, ULF waves providing an important missing physical transport process explaining Dst underestimation in ring current models. Key Points * ULF waves have an important yet usually neglected role in ring current dynamics * ULF wave ion transport occurs on similar timescales as that of electrons * Important ring current ion ULF wave transport effects must be included in models JF - Geophysical Research Letters AU - Murphy, Kyle R AU - Mann, Ian R AU - Ozeke, Louis G AD - NASA GSFC, Greenbelt, Maryland, USA. Y1 - 2014/10// PY - 2014 DA - October 2014 SP - 6595 EP - 6602 PB - Blackwell Publishing Ltd., 9600 Garsington Road Oxford OX4 2DQ United States VL - 41 IS - 19 SN - 0094-8276, 0094-8276 KW - Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts KW - Ions KW - Diffusion Coefficient KW - Ring current ions KW - Wave power KW - Correlations KW - Radiation belts KW - Wave dynamics KW - Ion Transport KW - Ion transport KW - Current meandering KW - Radiation KW - Resonance KW - Ring current KW - Current rings KW - Waves KW - Diffusion coefficient KW - Ring current models KW - Modelling KW - Wave effects KW - M2 551.521:Radiation (551.521) KW - Q2 09262:Methods and instruments KW - SW 0810:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1635030746?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=A+ULF+wave+driver+of+ring+current+energization&rft.au=Murphy%2C+Kyle+R%3BMann%2C+Ian+R%3BOzeke%2C+Louis+G&rft.aulast=Murphy&rft.aufirst=Kyle&rft.date=2014-10-01&rft.volume=41&rft.issue=19&rft.spage=6595&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1002%2F2014GL061253 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-12-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Current meandering; Ion transport; Radiation; Resonance; Wave power; Current rings; Wave dynamics; Wave effects; Modelling; Ring current ions; Ring current; Correlations; Radiation belts; Ring current models; Diffusion coefficient; Ions; Diffusion Coefficient; Waves; Ion Transport DO - http://dx.doi.org/10.1002/2014GL061253 ER - TY - JOUR T1 - Crystal structure of Guinier-Preston zones in orthopyroxene; Z-contrast imaging and ab inito study AN - 1629939310; 2014-099438 AB - Nano-precipitates of Guinier-Preston zones (or G.P. zones) occur in slowly cooled orthopyroxenes (OPX). Due to their nanometer sizes and intergrowth with host OPX, both X-ray diffraction and high-resolution TEM imaging cannot provide a consistent structure model for the G.P. zone precipitates. Combining Z-contrast imaging and density functional theory (DFT) methods, a correct crystal structure for the G.P. zone precipitates can be obtained, because Z-contrast imaging can reveal positions and occupancies of atoms directly. The crystal structure for the G.P. zone has P2 (sub 1) /c symmetry with 4 types of tetrahedral chains (OA1, OA2, OB, OC). The structure can be considered as periodic stacking of half unit cells of enstatite sub-layers and of diopside sub-layers in a twinning-like relationship along a-axis. The G.P. zones that precipitate out from their host Ca-bearing OPX at low temperature are metastable with respect to end-members of enstatite and diopside. JF - American Mineralogist AU - Xu, Huifang AU - Shen, Zhizhang AU - Konishi, Hiromi AU - Luo, Gufeng Y1 - 2014/10// PY - 2014 DA - October 2014 SP - 2043 EP - 2048 PB - Mineralogical Society of America, Washington, DC VL - 99 IS - 10 SN - 0003-004X, 0003-004X KW - silicates KW - high-resolution methods KW - experimental studies KW - X-ray diffraction data KW - density functional theory KW - ab initio KW - unit cell KW - stability KW - crystal structure KW - crystal growth KW - Guinier-Preston zones KW - solid solution KW - twinning KW - TEM data KW - order-disorder KW - pyroxene group KW - clinopyroxene KW - cooling KW - orthopyroxene KW - diopside KW - nanoparticles KW - enstatite KW - chain silicates KW - 01B:Mineralogy of silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1629939310?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Mineralogist&rft.atitle=Crystal+structure+of+Guinier-Preston+zones+in+orthopyroxene%3B+Z-contrast+imaging+and+ab+inito+study&rft.au=Xu%2C+Huifang%3BShen%2C+Zhizhang%3BKonishi%2C+Hiromi%3BLuo%2C+Gufeng&rft.aulast=Xu&rft.aufirst=Huifang&rft.date=2014-10-01&rft.volume=99&rft.issue=10&rft.spage=2043&rft.isbn=&rft.btitle=&rft.title=American+Mineralogist&rft.issn=0003004X&rft_id=info:doi/10.2138%2Fam-2014-4898 L2 - http://www.minsocam.org/MSA/AmMin/TOC/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Abstract, copyright, Mineralogical Society of America | Reference includes data from GeoScienceWorld, Alexandria, VA, United States N1 - Date revised - 2014-01-01 N1 - Number of references - 29 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2014-12-04 N1 - CODEN - AMMIAY N1 - SubjectsTermNotLitGenreText - ab initio; chain silicates; clinopyroxene; cooling; crystal growth; crystal structure; density functional theory; diopside; enstatite; experimental studies; Guinier-Preston zones; high-resolution methods; nanoparticles; order-disorder; orthopyroxene; pyroxene group; silicates; solid solution; stability; TEM data; twinning; unit cell; X-ray diffraction data DO - http://dx.doi.org/10.2138/am-2014-4898 ER - TY - JOUR T1 - Spinel-rich lithologies in the lunar highland crust; linking lunar samples with crystallization experiments and remote sensing AN - 1629939244; 2014-099421 AB - Mg-Al spinel is rare in lunar rocks (Apollo and meteorite collections), and occurs mostly in troctolites and troctolitic cataclastites. Recently, a new lunar lithology, rich in spinel and plagioclase, and lacking abundant olivine and pyroxene, was recognized in visible to near-infrared (VNIR) reflectance spectra by the Moon Mineralogy Mapper (M (super 3) ) instrument on the Chandrayaan-1 spacecraft at the Moscoviense basin. These outcrop-scale areas are inferred to contain 20-30% Mg-Al spinel. Possible explanations for the petrogenesis of spinel-bearing and spinel-rich lithology(s) range from low-pressure near-surface crystallization to a deep-seated origin in the lower lunar crust or upper mantle. Here, we describe 1-bar crystallization experiments conducted on rock compositions rich in olivine and plagioclase that crystallize spinel. This would be equivalent to impact-melting, which is moderately common among lunar plutonic rocks and granulites. To explore possible precursor materials and the maximum amount of spinel that could be crystallized, a lunar troctolitic composition similar to Apollo pink spinel troctolite 65785, and a composition similar to ALHA81005 as analog to the source region of this meteorite have been chosen. The crystallization experiments on the composition of AHLA 81005 did not yield any spinel; experiments on the composition similar to Apollo 65785 crystallized a maximum of approximately 8 wt% spinel, much less than the suggested 20-30% spinel of the new lithology detected by M (super 3) . However, our VNIR spectral reflectance analyses of the experimental run products indicate that the spinel composition of the experimental run products not only appears to be similar to the composition of the spinel lithology detected by M (super 3) (characteristics of the spinel absorption), but also that the modal abundances of coexisting phases (e.g., mafic glass) influence the spectral reflectance properties. Thus, the spinel-rich deposits detected by M (super 3) might not be as spinel-rich as previously thought and could contain as little as 4-5 wt% spinel. However, the effect of space weathering on spinel is unknown and could significantly weaken its 2 mu m absorptions. If this occurs, weathered lunar rocks could contain more spinel than a comparison with our unweathered experimental charges would suggest. JF - American Mineralogist AU - Gross, Juliane AU - Isaacson, Peter J AU - Treiman, Allan H AU - Le, Loan AU - Gorman, Julia K Y1 - 2014/10// PY - 2014 DA - October 2014 SP - 1849 EP - 1859 PB - Mineralogical Society of America, Washington, DC VL - 99 IS - 10 SN - 0003-004X, 0003-004X KW - near-infrared spectra KW - stony meteorites KW - igneous rocks KW - Apollo Program KW - lunar highlands KW - meteorites KW - plutonic rocks KW - spacecraft KW - metamorphic rocks KW - oxides KW - spectra KW - experimental studies KW - Moon KW - spinel KW - achondrites KW - Moscoviense Basin KW - Chandrayaan Program KW - ALHA 81005 KW - lunar samples KW - Allan Hills Meteorites KW - Antarctica KW - troctolite KW - color KW - crystallization KW - gabbros KW - cataclasites KW - reflectance KW - crust KW - remote sensing KW - 04:Extraterrestrial geology KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1629939244?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Mineralogist&rft.atitle=Spinel-rich+lithologies+in+the+lunar+highland+crust%3B+linking+lunar+samples+with+crystallization+experiments+and+remote+sensing&rft.au=Gross%2C+Juliane%3BIsaacson%2C+Peter+J%3BTreiman%2C+Allan+H%3BLe%2C+Loan%3BGorman%2C+Julia+K&rft.aulast=Gross&rft.aufirst=Juliane&rft.date=2014-10-01&rft.volume=99&rft.issue=10&rft.spage=1849&rft.isbn=&rft.btitle=&rft.title=American+Mineralogist&rft.issn=0003004X&rft_id=info:doi/10.2138%2Fam-2014-4780 L2 - http://www.minsocam.org/MSA/AmMin/TOC/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Abstract, copyright, Mineralogical Society of America | Reference includes data from GeoScienceWorld, Alexandria, VA, United States N1 - Date revised - 2014-01-01 N1 - Number of references - 63 N1 - PubXState - DC N1 - Document feature - illus. incl. 5 tables N1 - Last updated - 2014-12-04 N1 - CODEN - AMMIAY N1 - SubjectsTermNotLitGenreText - achondrites; ALHA 81005; Allan Hills Meteorites; Antarctica; Apollo Program; cataclasites; Chandrayaan Program; color; crust; crystallization; experimental studies; gabbros; igneous rocks; lunar highlands; lunar samples; metamorphic rocks; meteorites; Moon; Moscoviense Basin; near-infrared spectra; oxides; plutonic rocks; reflectance; remote sensing; spacecraft; spectra; spinel; stony meteorites; troctolite DO - http://dx.doi.org/10.2138/am-2014-4780 ER - TY - JOUR T1 - Boundary layer regulation in the southeast Atlantic cloud microphysics during the biomass burning season as seen by the A-train satellite constellation AN - 1622611934; 20895504 AB - Solar radiation absorption by biomass burning aerosols has a strong warming effect over the southeast Atlantic. Interactions between the overlying smoke aerosols and low-level cloud microphysics and the subsequent albedo perturbation are, however, generally ignored in biomass burning radiative assessments. In this study, Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observation (CALIPSO) are combined with Aqua satellite observations from Moderate Resolution Imaging Spectroradiometer (MODIS), Advanced Microwave Scanning Radiometer-EOS (AMSR-E), and Clouds and the Earth's Radiant Energy System (CERES) to assess the effect of variations in the boundary layer height and the separation distance between the cloud and aerosol layers on the cloud microphysics. The merged data analyzed at a daily temporal resolution suggest that overlying smoke aerosols modify cloud properties by decreasing cloud droplet size despite an increase in the cloud liquid water as boundary layer deepens, north of 5 degree S. These changes are controlled by the proximity of the aerosol layer to the cloud top rather than increases in the column aerosol load. The correlations are unlikely driven by meteorological factors, as three predictors of cloud variability, lower tropospheric stability, surface winds, and mixing ratio suggest that cloud effective radius, cloud top height, and liquid water path should correlate positively. Because cloud effective radius anticorrelates with cloud liquid water over the region with large microphysical changes-north of 5 degree S-the overall radiative consequence at the top of the atmosphere is a strong albedo susceptibility, equivalent to a 3% albedo increase due to a 10% decrease in cloud effective radius. This albedo enhancement partially offsets the aerosol solar absorption. Our analysis emphasizes the importance of accounting for the indirect effect of smoke aerosols in the cloud microphysics when estimating the radiative impact of the biomass burning at the top of the atmosphere. Key Points * Overlying smoke aerosols modify clouds by decreasing cloud droplet size * Changes are controlled by the proximity of the aerosol layer to the cloud top * Anticorrelation between droplet size and water path not driven by meteorology JF - Journal of Geophysical Research: Atmospheres AU - Painemal, David AU - Kato, Seiji AU - Minnis, Patrick AD - Science Directory, NASA Langley Research Center, Hampton, Virginia, USA. Y1 - 2014/10// PY - 2014 DA - October 2014 SP - 11 EP - 11,302 PB - Blackwell Publishing Ltd., 9600 Garsington Road Oxford OX4 2DQ United States VL - 119 IS - 19 SN - 2169-897X, 2169-897X KW - Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts KW - Remote Sensing KW - Combustion products KW - Boundary Layers KW - Remote sensing KW - Correlations KW - Cloud droplet size KW - Atmosphere KW - ASE, Atlantic KW - Microwaves KW - Asteroids KW - Absorption KW - MODIS (Moderate Resolution Imaging Spectrometer) KW - Meteorology KW - Wind variability KW - Satellite Technology KW - Aerosols KW - Aerosols-cloud condensation nuclei relationships KW - Albedo KW - Aerosols-cloud relationships KW - Troposphere KW - Biomass KW - Satellites KW - Ecosystem disturbance KW - Aerosol layers KW - Clouds KW - Smoke KW - Satellite sensing KW - Incineration KW - Satellite data KW - Energy KW - Boundary layers KW - Burning KW - Cloud microphysics KW - Q2 09243:Structure, mechanics and thermodynamics KW - M2 551.510.42:Air Pollution (551.510.42) KW - SW 0810:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1622611934?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research%3A+Atmospheres&rft.atitle=Boundary+layer+regulation+in+the+southeast+Atlantic+cloud+microphysics+during+the+biomass+burning+season+as+seen+by+the+A-train+satellite+constellation&rft.au=Painemal%2C+David%3BKato%2C+Seiji%3BMinnis%2C+Patrick&rft.aulast=Painemal&rft.aufirst=David&rft.date=2014-10-01&rft.volume=119&rft.issue=19&rft.spage=11&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Atmospheres&rft.issn=2169897X&rft_id=info:doi/10.1002%2F2014JD022182 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-11-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Smoke; Clouds; Satellite sensing; Aerosols; Microwaves; Boundary layers; Albedo; Troposphere; Ecosystem disturbance; Aerosols-cloud condensation nuclei relationships; Aerosols-cloud relationships; Correlations; Cloud droplet size; Aerosol layers; Satellite data; Asteroids; Meteorology; MODIS (Moderate Resolution Imaging Spectrometer); Wind variability; Cloud microphysics; Combustion products; Remote sensing; Biomass; Satellites; Atmosphere; Energy; Absorption; Burning; Remote Sensing; Satellite Technology; Incineration; Boundary Layers; ASE, Atlantic DO - http://dx.doi.org/10.1002/2014JD022182 ER - TY - JOUR T1 - Implementation of an aerosol-cloud-microphysics-radiation coupling into the NASA unified WRF: Simulation results for the 6-7 August 2006 AMMA special observing period AN - 1622608467; 20874237 AB - Aerosols affect the Earth's radiation balance directly and cloud microphysical processes indirectly via the activation of cloud condensation and ice nuclei. These two effects have often been considered separately and independently, hence the need to assess their combined impact given the differing nature of their effects on convective clouds. To study both effects, an aerosol-microphysics-radiation coupling, including Goddard microphysics and radiation schemes, was implemented into the NASA Unified Weather Research and Forecasting model (NU-WRF). Fully coupled NU-WRF simulations were conducted for a mesoscale convective system (MCS) that passed through the Niamey, Niger area on 6-7 August 2006 during an AMMA special observing period. The results suggest that rainfall is reduced when aerosol indirect effects are included, regardless of the aerosol direct effect. Daily mean radiation heating profiles in the area traversed by the MCS showed the aerosol (mainly mineral dust) direct effect had the largest impact near cloud tops just above 200 hPa where short-wave heating increased by about 0.8 K day super(-1); the weakest long-wave cooling was at around 250 hPa. It was also found that more condensation and ice nuclei as a result of higher aerosol/dust concentrations led to increased amounts of all cloud hydrometeors because of the microphysical indirect effect, and the radiation direct effect acts to reduce precipitating cloud particles (rain, snow and graupel) in the middle and lower cloud layers while increasing the non-precipitating particles (ice) in the cirrus anvil. However, when the aerosol direct effect was activated, regardless of the indirect effect, the onset of MCS precipitation was delayed about 2 h, in conjunction with the delay in the activation of cloud condensation and ice nuclei. Overall, for this particular environment, model set-up and physics configuration, the effect of aerosol radiative heating due to mineral dust overwhelmed the effect of the aerosols on microphysics. JF - Quarterly Journal of the Royal Meteorological Society AU - Shi, J J AU - Matsui, T AU - Tao, W-K AU - Tan, Q AU - Peters-Lidard, C AU - Chin, M AU - Pickering, K AU - Guy, N AU - Lang, S AU - Kemp, E M AD - NASA Goddard Space Flight Center, Greenbelt, >MD, USA. Y1 - 2014/10// PY - 2014 DA - October 2014 SP - 2158 EP - 2175 PB - Wiley-Blackwell, 111 River Street Hoboken NJ 07030-5774 United States VL - 140 IS - 684 SN - 0035-9009, 0035-9009 KW - Oceanic Abstracts; Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts; Environment Abstracts KW - Niger, Niamey KW - Prediction KW - Anvils KW - Rainfall KW - Particulates KW - Dust KW - Radiation KW - Meteorology KW - Mesoscale convective systems KW - Radiative heating KW - Modelling KW - Ice KW - Weather KW - Atmospheric particulates KW - Aerosols KW - Simulation Analysis KW - Aerosols-cloud condensation nuclei relationships KW - Snow KW - Ice nuclei KW - Radiation balance KW - Aerosols-cloud relationships KW - Simulation KW - Precipitation KW - Dusts KW - Niger KW - Clouds KW - Cloud particles KW - Numerical simulations KW - Hydrometeors KW - Convective activity KW - Condensation KW - Minerals KW - Eolian dust KW - M2 551.510.42:Air Pollution (551.510.42) KW - SW 0810:General KW - O 4080:Pollution - Control and Prevention KW - Q2 09244:Air-sea coupling KW - ENA 19:Water Pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1622608467?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Quarterly+Journal+of+the+Royal+Meteorological+Society&rft.atitle=Implementation+of+an+aerosol-cloud-microphysics-radiation+coupling+into+the+NASA+unified+WRF%3A+Simulation+results+for+the+6-7+August+2006+AMMA+special+observing+period&rft.au=Shi%2C+J+J%3BMatsui%2C+T%3BTao%2C+W-K%3BTan%2C+Q%3BPeters-Lidard%2C+C%3BChin%2C+M%3BPickering%2C+K%3BGuy%2C+N%3BLang%2C+S%3BKemp%2C+E+M&rft.aulast=Shi&rft.aufirst=J&rft.date=2014-10-01&rft.volume=140&rft.issue=684&rft.spage=2158&rft.isbn=&rft.btitle=&rft.title=Quarterly+Journal+of+the+Royal+Meteorological+Society&rft.issn=00359009&rft_id=info:doi/10.1002%2Fqj.2286 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-11-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Prediction; Atmospheric particulates; Aerosols; Radiation; Snow; Ice nuclei; Dust; Eolian dust; Modelling; Anvils; Aerosols-cloud condensation nuclei relationships; Radiation balance; Aerosols-cloud relationships; Precipitation; Clouds; Cloud particles; Numerical simulations; Hydrometeors; Convective activity; Mesoscale convective systems; Condensation; Radiative heating; Weather; Ice; Rainfall; Simulation; Meteorology; Particulates; Minerals; Simulation Analysis; Dusts; Niger, Niamey; Niger DO - http://dx.doi.org/10.1002/qj.2286 ER - TY - JOUR T1 - Identification of primary amines in Titan tholins using microchip nonaqueous capillary electrophoresis AN - 1618135349; 2014-085106 AB - Titan, the moon of Saturn with a thick atmosphere and an active hydrocarbon-based weather cycle, is considered the best target in the solar system for the study of organic chemistry on a planetary scale. Microfluidic devices that employ liquid phase techniques such as capillary electrophoresis with ultrasensitive laser-induced fluorescence detection offer a unique solution for in situ analysis of complex organics on Titan. We previously reported a protocol for nonaqueous microfluidic analysis of primary aliphatic amines in ethanol, and demonstrated separations of short- and long-chain amines down to -20 degrees C. We have optimized this protocol further, and used it to analyze Titan aerosol analogues (tholins) generated in two separate laboratories under a variety of different conditions. Ethylamine was a major product in all samples, though significant differences in amine content were observed, in particular for long-chain amines (C12-C27). This work validates microfluidic chemical analysis of complex organics with relevance to Titan, and represents a significant first step in understanding tholin composition via targeted functional group analysis. Abstract Copyright (2014) Elsevier, B.V. JF - Earth and Planetary Science Letters AU - Cable, M L AU - Horst, S M AU - He, C AU - Stockton, A M AU - Mora, M F AU - Tolbert, M A AU - Smith, M A AU - Willis, P A Y1 - 2014/10/01/ PY - 2014 DA - 2014 Oct 01 SP - 99 EP - 107 PB - Elsevier, Amsterdam VL - 403 SN - 0012-821X, 0012-821X KW - liquid phase KW - tholins KW - icy satellites KW - experimental studies KW - biochemistry KW - separation KW - electrophoresis KW - astrobiology KW - fluid phase KW - laboratory studies KW - ethanol KW - organic compounds KW - organic acids KW - amines KW - detection KW - laser-induced fluorescence KW - amino acids KW - capillary electrophoresis KW - alcohols KW - Titan Satellite KW - aerosols KW - ethylamine KW - satellites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1618135349?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Earth+and+Planetary+Science+Letters&rft.atitle=Identification+of+primary+amines+in+Titan+tholins+using+microchip+nonaqueous+capillary+electrophoresis&rft.au=Cable%2C+M+L%3BHorst%2C+S+M%3BHe%2C+C%3BStockton%2C+A+M%3BMora%2C+M+F%3BTolbert%2C+M+A%3BSmith%2C+M+A%3BWillis%2C+P+A&rft.aulast=Cable&rft.aufirst=M&rft.date=2014-10-01&rft.volume=403&rft.issue=&rft.spage=99&rft.isbn=&rft.btitle=&rft.title=Earth+and+Planetary+Science+Letters&rft.issn=0012821X&rft_id=info:doi/10.1016%2Fj.epsl.2014.06.028 L2 - http://www.sciencedirect.com/science/journal/0012821X LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2014-01-01 N1 - Number of references - 64 N1 - Document feature - illus. incl. 2 tables N1 - SuppNotes - Includes appendices N1 - Last updated - 2014-10-30 N1 - CODEN - EPSLA2 N1 - SubjectsTermNotLitGenreText - aerosols; alcohols; amines; amino acids; astrobiology; biochemistry; capillary electrophoresis; detection; electrophoresis; ethanol; ethylamine; experimental studies; fluid phase; icy satellites; laboratory studies; laser-induced fluorescence; liquid phase; organic acids; organic compounds; satellites; separation; tholins; Titan Satellite DO - http://dx.doi.org/10.1016/j.epsl.2014.06.028 ER - TY - JOUR T1 - Olivine in terminal particles of Stardust aerogel tracks and analogous grains in chondrite matrix AN - 1618131882; 2014-086870 AB - The dearth of both major and minor element analyses of anhydrous silicate phases in chondrite matrix has thus far hindered their comparison to the Wild 2 samples. We present 68 analyses of olivine (Fa (sub 0-97) ) in the coarse-grained terminal particles of Stardust aerogel tracks and a comprehensive dataset (>10 (super 3) analyses) of analogous olivine grains (5-30 mu m) isolated in CI, CM, CR, CH, CO, CV3-oxidized, CV3-reduced, C3-ungrouped (Acfer 094 and Ningqiang), L/LL 3.0-4, EH3, and Kakangari chondrite matrix. These compositions reveal that Wild 2 likely accreted a diverse assortment of material that was radially transported from various carbonaceous and ordinary chondrite-forming regions. The Wild 2 olivine includes amoeboid olivine aggregates (AOAs), refractory forsterite, type I and type II chondrule fragments and/or microchondrules, and rare relict grain compositions. In addition, we have identified one terminal particle that has no known compositional analog in the meteorite record and may be a signature of low-temperature, aqueous processing in the Kuiper Belt. The generally low Cr content of FeO-rich olivine in the Stardust samples indicates that they underwent mild thermal metamorphism, akin to a petrologic grade of 3.05-3.15. Abstract Copyright (2014) Elsevier, B.V. JF - Geochimica et Cosmochimica Acta AU - Frank, David R AU - Zolensky, Michael E AU - Le, Loan Y1 - 2014/10/01/ PY - 2014 DA - 2014 Oct 01 SP - 240 EP - 259 PB - Elsevier, New York, NY VL - 142 SN - 0016-7037, 0016-7037 KW - silicates KW - Ningqiang Meteorite KW - stony meteorites KW - aerogels KW - Kuiper Belt KW - olivine group KW - electron probe data KW - meteorites KW - mineral composition KW - major elements KW - olivine KW - orthosilicates KW - spectra KW - chondrites KW - chemical composition KW - minor elements KW - Stardust Mission KW - textures KW - matrix KW - Acfer Meteorites KW - thermal metamorphism KW - carbonaceous chondrites KW - metamorphism KW - X-ray spectra KW - TEM data KW - EDS spectra KW - nesosilicates KW - CK chondrites KW - particles KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1618131882?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Olivine+in+terminal+particles+of+Stardust+aerogel+tracks+and+analogous+grains+in+chondrite+matrix&rft.au=Frank%2C+David+R%3BZolensky%2C+Michael+E%3BLe%2C+Loan&rft.aulast=Frank&rft.aufirst=David&rft.date=2014-10-01&rft.volume=142&rft.issue=&rft.spage=240&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2014.05.037 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2014-01-01 N1 - Number of references - 108 N1 - PubXState - NY N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2014-10-30 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - Acfer Meteorites; aerogels; carbonaceous chondrites; chemical composition; chondrites; CK chondrites; EDS spectra; electron probe data; Kuiper Belt; major elements; matrix; metamorphism; meteorites; mineral composition; minor elements; nesosilicates; Ningqiang Meteorite; olivine; olivine group; orthosilicates; particles; silicates; spectra; Stardust Mission; stony meteorites; TEM data; textures; thermal metamorphism; X-ray spectra DO - http://dx.doi.org/10.1016/j.gca.2014.05.037 ER - TY - JOUR T1 - Advances in exoplanet science from Kepler AN - 1689591368; 2015-057122 JF - Nature (London) AU - Lissauer, Jack J AU - Dawson, Rebekah I AU - Tremaine, Scott AU - Sage, Leslie Y1 - 2014/09/18/ PY - 2014 DA - 2014 Sep 18 SP - 336 EP - 344 PB - Macmillan Journals, London VL - 513 IS - 7518 SN - 0028-0836, 0028-0836 KW - planets KW - detection KW - extrasolar planets KW - telescope methods KW - stars KW - orbits KW - space photography KW - terrestrial comparison KW - size KW - remote sensing KW - Kepler Space Telescope KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1689591368?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nature+%28London%29&rft.atitle=Advances+in+exoplanet+science+from+Kepler&rft.au=Lissauer%2C+Jack+J%3BDawson%2C+Rebekah+I%3BTremaine%2C+Scott%3BSage%2C+Leslie&rft.aulast=Lissauer&rft.aufirst=Jack&rft.date=2014-09-18&rft.volume=513&rft.issue=7518&rft.spage=336&rft.isbn=&rft.btitle=&rft.title=Nature+%28London%29&rft.issn=00280836&rft_id=info:doi/10.1038%2Fnature13781 L2 - http://www.nature.com/nature/index.html LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. N1 - Date revised - 2015-01-01 N1 - Number of references - 128 N1 - Document feature - illus. N1 - Last updated - 2015-06-18 N1 - CODEN - NATUAS N1 - SubjectsTermNotLitGenreText - detection; extrasolar planets; Kepler Space Telescope; orbits; planets; remote sensing; size; space photography; stars; telescope methods; terrestrial comparison DO - http://dx.doi.org/10.1038/nature13781 ER - TY - JOUR T1 - Assessing the origins of aliphatic amines in the Murchison Meteorite from their compound-specific carbon isotopic ratios and enantiomeric composition AN - 1623261209; 2014-089258 AB - The study of meteoritic organic compounds provides a unique window into the chemical inventory of the early Solar System and prebiotic chemistry that may have been important for the origin of life on Earth. Multiple families of organic compounds have been extracted from the Murchison meteorite, which is one of the most thoroughly studied carbonaceous chondrites. The amino acids extracted from Murchison have been extensively analyzed, including measurements of non-terrestrial stable isotopic ratios and discoveries of l-enantiomeric excesses for alpha -dialkyl amino acids, notably isovaline. However, although the isotopic signatures of bulk amine-containing fractions have been measured, the isotopic ratios and enantiomeric composition of individual aliphatic amines, compounds that are structurally related to amino acids, remain unknown. Here, we report a novel method for the extraction, separation, identification and quantitation of aliphatic monoamines extracted from the Murchison meteorite. Our results show a complete suite of structural isomers, with a larger concentration of methylamine and ethylamine and decreasing amine concentrations with increasing carbon number. The carbon isotopic compositions of fourteen meteoritic aliphatic monoamines were measured, with delta (super 13) C values ranging from +21 ppm to +129 ppm, showing a decrease in (super 13) C with increasing carbon number, a relationship that may be consistent with the chain elongation mechanism under kinetic control previously proposed for meteoritic amino acids. We also found the enantiomeric composition of sec-butylamine, a structural analog to isovaline, was racemic within error, while the isovaline extracted from the same Murchison piece showed an l-enantiomeric excess of 9.7%; this result suggested that processes leading to enantiomeric excess in the amino acid did not affect the amine. We used these collective data to assess the primordial synthetic origins of these meteoritic aliphatic amines and their potential linkage to meteoritic amino acids. Abstract Copyright (2014) Elsevier, B.V. JF - Geochimica et Cosmochimica Acta AU - Aponte, Jose C AU - Dworkin, Jason P AU - Elsila, Jamie E Y1 - 2014/09/15/ PY - 2014 DA - 2014 Sep 15 SP - 331 EP - 345 PB - Elsevier, New York, NY VL - 141 SN - 0016-7037, 0016-7037 KW - stony meteorites KW - isotopes KW - aliphatic amines KW - gas chromatograms KW - mass spectra KW - stable isotopes KW - Murchison Meteorite KW - meteorites KW - amines KW - enantiomeric composition KW - carbon KW - amino acids KW - spectra KW - chondrites KW - chemical composition KW - synthetic materials KW - solar system KW - isotope ratios KW - biochemistry KW - C-13/C-12 KW - cosmochemistry KW - carbonaceous chondrites KW - molecular structure KW - organic compounds KW - organic acids KW - chromatograms KW - CM chondrites KW - 05B:Petrology of meteorites and tektites KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1623261209?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Assessing+the+origins+of+aliphatic+amines+in+the+Murchison+Meteorite+from+their+compound-specific+carbon+isotopic+ratios+and+enantiomeric+composition&rft.au=Aponte%2C+Jose+C%3BDworkin%2C+Jason+P%3BElsila%2C+Jamie+E&rft.aulast=Aponte&rft.aufirst=Jose&rft.date=2014-09-15&rft.volume=141&rft.issue=&rft.spage=331&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2014.06.035 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2014-01-01 N1 - Number of references - 88 N1 - PubXState - NY N1 - Document feature - illus. incl. 3 tables N1 - SuppNotes - Includes appendices N1 - Last updated - 2014-11-13 N1 - SubjectsTermNotLitGenreText - aliphatic amines; amines; amino acids; biochemistry; C-13/C-12; carbon; carbonaceous chondrites; chemical composition; chondrites; chromatograms; CM chondrites; cosmochemistry; enantiomeric composition; gas chromatograms; isotope ratios; isotopes; mass spectra; meteorites; molecular structure; Murchison Meteorite; organic acids; organic compounds; solar system; spectra; stable isotopes; stony meteorites; synthetic materials DO - http://dx.doi.org/10.1016/j.gca.2014.06.035 ER - TY - JOUR T1 - The Vesta gravity field, spin pole and rotation period, landmark positions, and ephemeris from the Dawn tracking and optical data AN - 1623260968; 2014-089030 AB - The Vesta gravity field and related physical parameters have been precisely measured using 10-months of radiometric Doppler and range data and optical landmark tracking from the Dawn spacecraft. The gravity field, orientation parameters, landmark locations, and Vesta's orbit are jointly estimated. The resulting spherical harmonic gravity field has a half-wavelength resolution of 42 km (degree 20). The gravitational mass uncertainty is nearly 1 part in 10 (super 6) . The inertial spin pole location is determined to better than 0.0001 degrees and the uncertainty in the rotation period has been reduced by nearly a factor of 100. The combined precession and nutation of the pole of Vesta has been detected with angular rates about 70% of expected values, but not well enough to constrain the moment of inertia. The optical landmark position estimates reduce the uncertainty in the center-of-mass and center-of-figure offset to 10 m. The Vesta ephemeris uncertainty during the Dawn stay was reduced from 20 km to better than 10 m in the Earth-Vesta direction. JF - Icarus AU - Konopliv, Alexander S AU - Asmar, Sami W AU - Park, Ryan S AU - Bills, Bruce G AU - Centinello, F AU - Chamberlin, A B AU - Ermakov, Anton I AU - Gaskell, R W AU - Rambaux, N AU - Raymond, C A AU - Russell, C T AU - Smith, D E AU - Tricarico, P AU - Zuber, M T Y1 - 2014/09/15/ PY - 2014 DA - 2014 Sep 15 SP - 103 EP - 117 PB - Elsevier, New York, NY VL - 240 SN - 0019-1035, 0019-1035 KW - asteroids KW - Vesta Asteroid KW - orbits KW - pole positions KW - precession KW - Dawn Mission KW - spherical harmonic analysis KW - gravity anomalies KW - gravity field KW - ephemeris KW - detection KW - rotation KW - Bouguer anomalies KW - periodicity KW - nutation KW - uncertainty KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1623260968?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Icarus&rft.atitle=The+Vesta+gravity+field%2C+spin+pole+and+rotation+period%2C+landmark+positions%2C+and+ephemeris+from+the+Dawn+tracking+and+optical+data&rft.au=Konopliv%2C+Alexander+S%3BAsmar%2C+Sami+W%3BPark%2C+Ryan+S%3BBills%2C+Bruce+G%3BCentinello%2C+F%3BChamberlin%2C+A+B%3BErmakov%2C+Anton+I%3BGaskell%2C+R+W%3BRambaux%2C+N%3BRaymond%2C+C+A%3BRussell%2C+C+T%3BSmith%2C+D+E%3BTricarico%2C+P%3BZuber%2C+M+T&rft.aulast=Konopliv&rft.aufirst=Alexander&rft.date=2014-09-15&rft.volume=240&rft.issue=&rft.spage=103&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2013.09.005 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Number of references - 53 N1 - PubXState - NY N1 - Document feature - illus. incl. 7 tables, sketch maps N1 - Last updated - 2014-11-13 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - asteroids; Bouguer anomalies; Dawn Mission; detection; ephemeris; gravity anomalies; gravity field; nutation; orbits; periodicity; pole positions; precession; rotation; spherical harmonic analysis; uncertainty; Vesta Asteroid DO - http://dx.doi.org/10.1016/j.icarus.2013.09.005 ER - TY - JOUR T1 - Spectral analysis of the bright materials on the asteroid Vesta AN - 1623260050; 2014-089028 AB - Vesta spectra have prominent near-infrared absorption bands characteristic of pyroxenes, indicating a direct link to the howardite, eucrite and diogenite meteorites. Many localized dark and bright materials are present on Vesta's surface. Here we focus on the bright material (BM) units to determine their spectral properties, their origin, the presence of mineralogical phases different from pyroxenes, and whether different bright units share a common lithology. VIR, the Visible and Infrared spectrometer onboard Dawn, allows us to first do a detailed analysis of the spectral properties of a large number of bright material units on Vesta including examples of the different morphological classes. The spectral parameters used are band centers, band depths, and Band Area Ratio (BAR) for the pyroxene bands at approximately 0.9 and approximately 1.9 mu m. The mineralogies of most bright regions are consistent with those of the howardite, eucrite and diogenite meteorites typical of Vesta's surface. We find that bright material units exhibit the full range of HED pyroxene composition, from eucrites to diogenites. Large part of the bright materials are eucrite-rich, according with the Vesta's mineralogy. In most cases, the bright materials have the same mineralogy of the surrounding terrain, but have larger band depth values. The band depths can be related to the abundance of the absorbing minerals, the abundance of Fe (super 2+) , grain size, and/or to the abundance of opaque materials. We found a positive correlation between albedo and band depth, which suggests that the grain size is not the main factor responsible for the higher albedo. The analysis of the band parameters indicates that most of the bright materials, excluding the few olivine-rich units, represent fresh uncontaminated Vestan pyroxenes from a variety of lithologies exposed from beneath the surface by impacts. JF - Icarus AU - Zambon, Francesca AU - De Sanctis, Maria Cristina AU - Schroeder, Stefan E AU - Tosi, Federico AU - Longobardo, Andrea AU - Ammannito, Eleonora AU - Blewett, David T AU - Mittlefehldt, David W AU - Li, Jian-Yang AU - Palomba, Ernesto AU - Capaccioni, Fabrizio AU - Frigeri, Alessandro AU - Capria, Maria Teresa AU - Fonte, Sergio AU - Nathues, Andreas AU - Pieters, Carle M AU - Russell, Christopher T AU - Raymond, Carol A Y1 - 2014/09/15/ PY - 2014 DA - 2014 Sep 15 SP - 73 EP - 85 PB - Elsevier, New York, NY VL - 240 SN - 0019-1035, 0019-1035 KW - silicates KW - albedo KW - near-infrared spectra KW - stony meteorites KW - asteroids KW - band depth KW - Dawn Mission KW - iron KW - brightness KW - meteorites KW - pyroxene group KW - mineral composition KW - howardite KW - surface features KW - spectra KW - opaque minerals KW - chain silicates KW - Vesta Asteroid KW - grain size KW - diogenite KW - achondrites KW - weathering KW - ferrous iron KW - space weathering KW - metals KW - eucrite KW - 05B:Petrology of meteorites and tektites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1623260050?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Icarus&rft.atitle=Spectral+analysis+of+the+bright+materials+on+the+asteroid+Vesta&rft.au=Zambon%2C+Francesca%3BDe+Sanctis%2C+Maria+Cristina%3BSchroeder%2C+Stefan+E%3BTosi%2C+Federico%3BLongobardo%2C+Andrea%3BAmmannito%2C+Eleonora%3BBlewett%2C+David+T%3BMittlefehldt%2C+David+W%3BLi%2C+Jian-Yang%3BPalomba%2C+Ernesto%3BCapaccioni%2C+Fabrizio%3BFrigeri%2C+Alessandro%3BCapria%2C+Maria+Teresa%3BFonte%2C+Sergio%3BNathues%2C+Andreas%3BPieters%2C+Carle+M%3BRussell%2C+Christopher+T%3BRaymond%2C+Carol+A&rft.aulast=Zambon&rft.aufirst=Francesca&rft.date=2014-09-15&rft.volume=240&rft.issue=&rft.spage=73&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2014.04.037 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Number of references - 75 N1 - PubXState - NY N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2014-11-13 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - achondrites; albedo; asteroids; band depth; brightness; chain silicates; Dawn Mission; diogenite; eucrite; ferrous iron; grain size; howardite; iron; metals; meteorites; mineral composition; near-infrared spectra; opaque minerals; pyroxene group; silicates; space weathering; spectra; stony meteorites; surface features; Vesta Asteroid; weathering DO - http://dx.doi.org/10.1016/j.icarus.2014.04.037 ER - TY - JOUR T1 - Thermal measurements of dark and bright surface features on Vesta as derived from Dawn/VIR AN - 1623259423; 2014-089026 AB - Remote sensing data acquired during Dawn's orbital mission at Vesta showed several local concentrations of high-albedo (bright) and low-albedo (dark) material units, in addition to spectrally distinct meteorite impact ejecta. The thermal behavior of such areas seen at local scale (1-10 km) is related to physical properties that can provide information about the origin of those materials. We use Dawn's Visible and InfraRed (VIR) mapping spectrometer hyperspectral data to retrieve surface temperatures and emissivities, with high accuracy as long as temperatures are greater than 220 K. Some of the dark and bright features were observed multiple times by VIR in the various mission phases at variable spatial resolution, illumination and observation angles, local solar time, and heliocentric distance. This work presents the first temperature maps and spectral emissivities of several kilometer-scale dark and bright material units on Vesta. Results retrieved from the infrared data acquired by VIR show that bright regions generally correspond to regions with lower temperature, while dark regions correspond to areas with higher temperature. During maximum daily insolation and in the range of heliocentric distances explored by Dawn, i.e. 2.23-2.54 AU, the warmest dark unit found on Vesta rises to a temperature of 273 K, while bright units observed under comparable conditions do not exceed 266 K. Similarly, dark units appear to have higher emissivity on average compared to bright units. Dark-material units show a weak anticorrelation between temperature and albedo, whereas the relation is stronger for bright material units observed under the same conditions. Individual features may show either evanescent or distinct margins in the thermal images, as a consequence of the cohesion of the surface material. Finally, for the two categories of dark and bright materials, we were able to highlight the influence of heliocentric distance on surface temperatures, and estimate an average temperature rate change of 1% following a variation of 0.04 AU in the solar distance. JF - Icarus AU - Tosi, Federico AU - Capria, Maria Teresa AU - De Sanctis, Maria Cristina AU - Combe, Jean-Philippe AU - Zambon, Francesca AU - Nathues, Andreas AU - Schroeder, S E AU - Li, J Y AU - Palomba, Ernesto AU - Longobardo, Andrea AU - Blewett, David T AU - Denevi, B W AU - Palmer, E AU - Capaccioni, Fabrizio AU - Ammannito, Eleonora AU - Titus, T M AU - Mittlefehldt, David W AU - Sunshine, J M AU - Russell, C T AU - Raymond, C A Y1 - 2014/09/15/ PY - 2014 DA - 2014 Sep 15 SP - 36 EP - 57 PB - Elsevier, New York, NY VL - 240 SN - 0019-1035, 0019-1035 KW - albedo KW - spectrophotometry KW - hyperspectral analysis KW - asteroids KW - Vesta Asteroid KW - thermal properties KW - Visible and InfraRed mapping spectrometer KW - Dawn Mission KW - emissivity KW - temperature KW - VIR instrument KW - photometry KW - surface features KW - ground-surface temperature KW - diurnal variations KW - remote sensing KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1623259423?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Icarus&rft.atitle=Thermal+measurements+of+dark+and+bright+surface+features+on+Vesta+as+derived+from+Dawn%2FVIR&rft.au=Tosi%2C+Federico%3BCapria%2C+Maria+Teresa%3BDe+Sanctis%2C+Maria+Cristina%3BCombe%2C+Jean-Philippe%3BZambon%2C+Francesca%3BNathues%2C+Andreas%3BSchroeder%2C+S+E%3BLi%2C+J+Y%3BPalomba%2C+Ernesto%3BLongobardo%2C+Andrea%3BBlewett%2C+David+T%3BDenevi%2C+B+W%3BPalmer%2C+E%3BCapaccioni%2C+Fabrizio%3BAmmannito%2C+Eleonora%3BTitus%2C+T+M%3BMittlefehldt%2C+David+W%3BSunshine%2C+J+M%3BRussell%2C+C+T%3BRaymond%2C+C+A&rft.aulast=Tosi&rft.aufirst=Federico&rft.date=2014-09-15&rft.volume=240&rft.issue=&rft.spage=36&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2014.03.017 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Number of references - 60 N1 - PubXState - NY N1 - Document feature - illus. incl. 2 tables N1 - SuppNotes - Includes appendices N1 - Last updated - 2014-11-13 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - albedo; asteroids; Dawn Mission; diurnal variations; emissivity; ground-surface temperature; hyperspectral analysis; photometry; remote sensing; spectrophotometry; surface features; temperature; thermal properties; Vesta Asteroid; VIR instrument; Visible and InfraRed mapping spectrometer DO - http://dx.doi.org/10.1016/j.icarus.2014.03.017 ER - TY - JOUR T1 - MAGNETIC FIELD FLUCTUATIONS OBSERVED IN THE HELIOSHEATH AND INTERSTELLAR MAGNETIC FIELD BY VOYAGER 1 AT 115.7-124.9 AU DURING 2011-2013 AN - 1709173010; PQ0001859583 AB - We discuss microscale fluctuations of the hour averages of the magnetic field B observed on a scale of one day by Voyager 1 (V1) from 2011.0 to 2012.3143 (when it was within the distant heliosheath, where the average magnetic field strength [left angle bracket]B[right angle bracket] = 0.17 nT) and during the interval from 2012.6503 to 2013.5855 (when it was within the interstellar plasma with [left angle bracket]B[right angle bracket] = 0.47 nT). In both regions, the fluctuations were primarily compressive fluctuations, varying along the average B ([asymptotically =]T direction in RTN coordinates). In the heliosheath, the average of the daily standard deviations (SDs) of the compressive and transverse components of B were [left angle bracket]SD sub(c)[right angle bracket] = 0.010 nT and [left angle bracket]SD sub(t)[right angle bracket] [< or =, slant] 0.005 nT (which is the limit of the measurement). In the distant heliosheath [left angle bracket]SD sub(c)[right angle bracket]/[left angle bracket]B[right angle bracket] = 0.06, and the distributions of SD were skewed and highly kurtotic. The interstellar magnetic field (ISMF) strength was B = 0.48 nT, but the fluctuations were below the limit of measurement: [left angle bracket]SD sub(c)[right angle bracket] = 0.004 nT and [left angle bracket]abs(SD sub(t))[right angle bracket] = 0.004 nT. The distributions of these interstellar SDs have skewness and kurtosis consistent with a Gaussian noise distribution. We also discuss the fluctuations of 48 s averages of B on a scale of 1 day during a 30 day interval when V1 was observing the ISMF. For the fluctuations in all three components of B, SD = 0.010 nT, which gives an upper limit on the fluctuations of the ISMF on the scales observed by V1. This SD rules out the possibility that there is significant power in electromagnetic fluctuations generated by pickup ion ring instabilities at these scales, which strongly constrains models of the IBEX ribbon. JF - Astrophysical Journal AU - BURLAGA, L F AU - Ness, N F AU - FLORINSKI, V AU - HEERIKHUISEN, J AD - NASA Goddard Space Flight Center, Code 673, Greenbelt, MD 20771, USA, lburlagahsp@verizon.net Y1 - 2014/09/10/ PY - 2014 DA - 2014 Sep 10 SP - 1 EP - 10 PB - IOP Publishing, The Public Ledger Building, Suite 929 Philadelphia PA 19106 United States VL - 792 IS - 2 SN - 0004-637X, 0004-637X KW - Pollution Abstracts; Meteorological & Geoastrophysical Abstracts KW - instabilities KW - ISM: kinematics and dynamics KW - solar wind KW - turbulence KW - Magnetic fields KW - Acoustic waves KW - Interstellar magnetic fields KW - Noise pollution KW - Instability KW - P 7000:NOISE KW - M2 550.38:Geomagnetism (550.38) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1709173010?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Astrophysical+Journal&rft.atitle=MAGNETIC+FIELD+FLUCTUATIONS+OBSERVED+IN+THE+HELIOSHEATH+AND+INTERSTELLAR+MAGNETIC+FIELD+BY+VOYAGER+1+AT+115.7-124.9+AU+DURING+2011-2013&rft.au=BURLAGA%2C+L+F%3BNess%2C+N+F%3BFLORINSKI%2C+V%3BHEERIKHUISEN%2C+J&rft.aulast=BURLAGA&rft.aufirst=L&rft.date=2014-09-10&rft.volume=792&rft.issue=2&rft.spage=1&rft.isbn=&rft.btitle=&rft.title=Astrophysical+Journal&rft.issn=0004637X&rft_id=info:doi/10.1088%2F0004-637X%2F792%2F2%2F134 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-09-01 N1 - Last updated - 2015-11-16 N1 - SubjectsTermNotLitGenreText - Magnetic fields; Acoustic waves; Interstellar magnetic fields; Noise pollution; Instability DO - http://dx.doi.org/10.1088/0004-637X/792/2/134 ER - TY - CPAPER T1 - Transmission loss and absorption of corrugated core sandwich panels with embedded resonators T2 - 2014 National Conference on Noise Control Engineering (Noise-Con 2014) AN - 1645184229; 6321623 JF - 2014 National Conference on Noise Control Engineering (Noise-Con 2014) AU - Allen, Albert AU - Schiller, Noah AU - Zalewski, Bart AU - Rosenthal, Bruce Y1 - 2014/09/08/ PY - 2014 DA - 2014 Sep 08 KW - Absorption KW - Transmission loss UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1645184229?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2014+National+Conference+on+Noise+Control+Engineering+%28Noise-Con+2014%29&rft.atitle=Transmission+loss+and+absorption+of+corrugated+core+sandwich+panels+with+embedded+resonators&rft.au=Allen%2C+Albert%3BSchiller%2C+Noah%3BZalewski%2C+Bart%3BRosenthal%2C+Bruce&rft.aulast=Allen&rft.aufirst=Albert&rft.date=2014-09-08&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2014+National+Conference+on+Noise+Control+Engineering+%28Noise-Con+2014%29&rft.issn=&rft_id=info:doi/ L2 - http://www.inceusa.org/nc14/documents/NC14_Program_UPDATED9-4-2014.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-11-30 N1 - Last updated - 2015-01-14 ER - TY - CPAPER T1 - An evaluation of the additional acoustic power needed to overcome the effects of a test article's absorption during reverberant chamber acoustic testing of spaceflight hardware T2 - 2014 National Conference on Noise Control Engineering (Noise-Con 2014) AN - 1645184223; 6321624 JF - 2014 National Conference on Noise Control Engineering (Noise-Con 2014) AU - Hozman, Aron AU - Hughes, William Y1 - 2014/09/08/ PY - 2014 DA - 2014 Sep 08 KW - Space flight KW - Acoustics KW - Absorption UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1645184223?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2014+National+Conference+on+Noise+Control+Engineering+%28Noise-Con+2014%29&rft.atitle=An+evaluation+of+the+additional+acoustic+power+needed+to+overcome+the+effects+of+a+test+article%27s+absorption+during+reverberant+chamber+acoustic+testing+of+spaceflight+hardware&rft.au=Hozman%2C+Aron%3BHughes%2C+William&rft.aulast=Hozman&rft.aufirst=Aron&rft.date=2014-09-08&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2014+National+Conference+on+Noise+Control+Engineering+%28Noise-Con+2014%29&rft.issn=&rft_id=info:doi/ L2 - http://www.inceusa.org/nc14/documents/NC14_Program_UPDATED9-4-2014.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-11-30 N1 - Last updated - 2015-01-14 ER - TY - CPAPER T1 - Acoustic test results of melamine foam with application to payload fairing acoustic attenuation systems T2 - 2014 National Conference on Noise Control Engineering (Noise-Con 2014) AN - 1645183246; 6321622 JF - 2014 National Conference on Noise Control Engineering (Noise-Con 2014) AU - Hughes, William AU - Mc- Neilis, Anne Y1 - 2014/09/08/ PY - 2014 DA - 2014 Sep 08 KW - Acoustics KW - Foams KW - melamine KW - Fairings UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1645183246?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2014+National+Conference+on+Noise+Control+Engineering+%28Noise-Con+2014%29&rft.atitle=Acoustic+test+results+of+melamine+foam+with+application+to+payload+fairing+acoustic+attenuation+systems&rft.au=Hughes%2C+William%3BMc-+Neilis%2C+Anne&rft.aulast=Hughes&rft.aufirst=William&rft.date=2014-09-08&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2014+National+Conference+on+Noise+Control+Engineering+%28Noise-Con+2014%29&rft.issn=&rft_id=info:doi/ L2 - http://www.inceusa.org/nc14/documents/NC14_Program_UPDATED9-4-2014.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-11-30 N1 - Last updated - 2015-01-14 ER - TY - JOUR T1 - Final reports of the Stardust Interstellar Preliminary Examination AN - 1696877884; 2015-068970 AB - With the discovery of bona fide extraterrestrial materials in the Stardust Interstellar Dust Collector, NASA now has a fundamentally new returned sample collection, after the Apollo, Antarctic meteorite, Cosmic Dust, Genesis, Stardust Cometary, Hayabusa, and Exposed Space Hardware samples. Here, and in companion papers in this volume, we present the results from the Preliminary Examination of this collection, the Stardust Interstellar Preliminary Examination (ISPE). We found extraterrestrial materials in two tracks in aerogel whose trajectories and morphology are consistent with an origin in the interstellar dust stream, and in residues in four impacts in the aluminum foil collectors. While the preponderance of evidence, described in detail in companion papers in this volume, points toward an interstellar origin for some of these particles, alternative origins have not yet been eliminated, and definitive tests through isotopic analyses were not allowed under the terms of the ISPE. In this summary, we answer the central questions of the ISPE: How many tracks in the collector are consistent in their morphology and trajectory with interstellar particles? How many of these potential tracks are consistent with real interstellar particles, based on chemical analysis? Conversely, what fraction of candidates are consistent with either a secondary or interplanetary origin? What is the mass distribution of these particles, and what is their state? Are they particulate or diffuse? Is there any crystalline material? How many detectable impact craters (>100 nm) are there in the foils, and what is their size distribution? How many of these craters have analyzable residue that is consistent with extraterrestrial material? And finally, can craters from secondaries be recognized through crater morphology (e.g., ellipticity)? Abstract Copyright The Meteoritical Society, 2014. JF - Meteoritics & Planetary Science AU - Westphal, Andrew J AU - Bechtel, Hans A AU - Brenker, Frank E AU - Butterworth, Anna L AU - Flynn, George J AU - Frank, David R AU - Gainsforth, Zack AU - Hillier, Jon K AU - Postberg, Frank AU - Simionovici, Alexandre S AU - Sterken, Veerle J AU - Stroud, Rhonda M AU - Allen, Carlton AU - Anderson, David AU - Ansari, Asna AU - Bajt, Sasa AU - Bastien, Ron K AU - Bassim, Nabil AU - Borg, Janet AU - Bridges, John AU - Brownlee, Donald E AU - Burchell, Mark AU - Burghammer, Manfred AU - Changela, Hitesh AU - Cloetens, Peter AU - Davis, Andrew M AU - Doll, Ryan AU - Floss, Christine AU - Gruen, Eberhard AU - Heck, Philipp R AU - Hoppe, Peter AU - Hudson, Bruce AU - Huth, Joachim AU - Hvide, Brit AU - Kearsley, Anton AU - King, Ashley J AU - Lai, Barry AU - Leitner, Jan AU - Lemelle, Laurence AU - Leroux, Hugues AU - Leonard, Ariel AU - Lettieri, Robert AU - Marchant, William AU - Nittler, Larry R AU - Ogliore, Ryan AU - Ong, Wei Ja AU - Price, Mark C AU - Sandford, Scott A AU - Tresserras, Juan-Angel Sans AU - Schmitz, Sylvia AU - Schoonjans, Tom AU - Silversmit, Geert AU - Sole, Vicente A AU - Srama, Ralf AU - Stadermann, Frank J AU - Stephan, Thomas AU - Stodolna, Julien AU - Sutton, Steven AU - Trieloff, Mario AU - Tsou, Peter AU - Tsuchiyama, Akira AU - Tyliszczak, Tolek AU - Vekemans, Bart AU - Vincze, Laszlo AU - Korff, Joshua AU - Wordsworth, Naomi AU - Zevin, Daniel AU - Zolensky, Michael E AU - Anonymous Y1 - 2014/09// PY - 2014 DA - September 2014 SP - 1720 EP - 1733 PB - Meteoritical Society, Fayetteville, AR VL - 49 IS - 9 SN - 1086-9379, 1086-9379 KW - particle tracks KW - impact features KW - Stardust Mission KW - trajectories KW - impacts KW - distribution KW - morphology KW - size distribution KW - cosmic dust KW - detection KW - Stardust Interstellar Preliminary Examination KW - identification KW - aluminum foil KW - aerogel KW - impact craters KW - chemical composition KW - interstellar dust KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1696877884?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Final+reports+of+the+Stardust+Interstellar+Preliminary+Examination&rft.au=Westphal%2C+Andrew+J%3BBechtel%2C+Hans+A%3BBrenker%2C+Frank+E%3BButterworth%2C+Anna+L%3BFlynn%2C+George+J%3BFrank%2C+David+R%3BGainsforth%2C+Zack%3BHillier%2C+Jon+K%3BPostberg%2C+Frank%3BSimionovici%2C+Alexandre+S%3BSterken%2C+Veerle+J%3BStroud%2C+Rhonda+M%3BAllen%2C+Carlton%3BAnderson%2C+David%3BAnsari%2C+Asna%3BBajt%2C+Sasa%3BBastien%2C+Ron+K%3BBassim%2C+Nabil%3BBorg%2C+Janet%3BBridges%2C+John%3BBrownlee%2C+Donald+E%3BBurchell%2C+Mark%3BBurghammer%2C+Manfred%3BChangela%2C+Hitesh%3BCloetens%2C+Peter%3BDavis%2C+Andrew+M%3BDoll%2C+Ryan%3BFloss%2C+Christine%3BGruen%2C+Eberhard%3BHeck%2C+Philipp+R%3BHoppe%2C+Peter%3BHudson%2C+Bruce%3BHuth%2C+Joachim%3BHvide%2C+Brit%3BKearsley%2C+Anton%3BKing%2C+Ashley+J%3BLai%2C+Barry%3BLeitner%2C+Jan%3BLemelle%2C+Laurence%3BLeroux%2C+Hugues%3BLeonard%2C+Ariel%3BLettieri%2C+Robert%3BMarchant%2C+William%3BNittler%2C+Larry+R%3BOgliore%2C+Ryan%3BOng%2C+Wei+Ja%3BPrice%2C+Mark+C%3BSandford%2C+Scott+A%3BTresserras%2C+Juan-Angel+Sans%3BSchmitz%2C+Sylvia%3BSchoonjans%2C+Tom%3BSilversmit%2C+Geert%3BSole%2C+Vicente+A%3BSrama%2C+Ralf%3BStadermann%2C+Frank+J%3BStephan%2C+Thomas%3BStodolna%2C+Julien%3BSutton%2C+Steven%3BTrieloff%2C+Mario%3BTsou%2C+Peter%3BTsuchiyama%2C+Akira%3BTyliszczak%2C+Tolek%3BVekemans%2C+Bart%3BVincze%2C+Laszlo%3BKorff%2C+Joshua%3BWordsworth%2C+Naomi%3BZevin%2C+Daniel%3BZolensky%2C+Michael+E%3BAnonymous&rft.aulast=Westphal&rft.aufirst=Andrew&rft.date=2014-09-01&rft.volume=49&rft.issue=9&rft.spage=1720&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fmaps.12221 L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2015-01-01 N1 - Number of references - 26 N1 - PubXState - AR N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2015-10-15 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - aerogel; aluminum foil; chemical composition; cosmic dust; detection; distribution; identification; impact craters; impact features; impacts; interstellar dust; morphology; particle tracks; size distribution; Stardust Interstellar Preliminary Examination; Stardust Mission; trajectories DO - http://dx.doi.org/10.1111/maps.12221 ER - TY - JOUR T1 - Stardust interstellar preliminary examination; V, XRF analyses of interstellar dust candidates at ESRF ID13 AN - 1696877624; 2015-068963 AB - Here, we report analyses by synchrotron X-ray fluorescence microscopy of the elemental composition of eight candidate impact features extracted from the Stardust Interstellar Dust Collector (SIDC). Six of the features were unambiguous tracks, and two were crater-like features. Five of the tracks are so-called "midnight" tracks-that is, they had trajectories consistent with an origin either in the interstellar dust stream or as secondaries from impacts on the Sample Return Capsule (SRC). In a companion paper reporting synchrotron X-ray diffraction analyses of ISPE candidates, we show that two of these particles contain natural crystalline materials: the terminal particle of track 30 contains olivine and spinel, and the terminal particle of track 34 contains olivine. Here, we show that the terminal particle of track 30, Orion, shows elemental abundances, normalized to Fe, that are close to CI values, and a complex, fine-grained structure. The terminal particle of track 34, Hylabrook, shows abundances that deviate strongly from CI, but shows little fine structure and is nearly homogenous. The terminal particles of other midnight tracks, 29 and 37, had heavy element abundances below detection threshold. A third, track 28, showed a composition inconsistent with an extraterrestrial origin, but also inconsistent with known spacecraft materials. A sixth track, with a trajectory consistent with secondary ejecta from an impact on one of the spacecraft solar panels, contains abundant Ce and Zn. This is consistent with the known composition of the glass covering the solar panel. Neither crater-like feature is likely to be associated with extraterrestrial materials. We also analyzed blank aerogel samples to characterize background and variability between aerogel tiles. We found significant differences in contamination levels and compositions, emphasizing the need for local background subtraction for accurate quantification. Abstract Copyright The Meteoritical Society, 2014. JF - Meteoritics & Planetary Science AU - Brenker, Frank E AU - Westphal, Andrew J AU - Vincze, Laszlo AU - Burghammer, Manfred AU - Schmitz, Sylvia AU - Schoonjans, Tom AU - Silversmit, Geert AU - Vekemans, Bart AU - Allen, Carlton AU - Anderson, David AU - Ansari, Asna AU - Bajt, Sasa AU - Bastien, Ron K AU - Bassim, Nabil AU - Bechtel, Hans A AU - Borg, Janet AU - Bridges, John AU - Brownlee, Donald E AU - Burchell, Mark AU - Butterworth, Anna L AU - Changela, Hitesh AU - Cloetens, Peter AU - Davis, Andrew M AU - Doll, Ryan AU - Floss, Christine AU - Flynn, George J AU - Fougeray, Patrick AU - Frank, David R AU - Gainsforth, Zack AU - Gruen, Eberhard AU - Heck, Philipp R AU - Hillier, Jon K AU - Hoppe, Peter AU - Hudson, Bruce AU - Huth, Joachim AU - Hvide, Brit AU - Kearsley, Anton AU - King, Ashley J AU - Lai, Barry AU - Leitner, Jan AU - Lemelle, Laurence AU - Leroux, Hugues AU - Leonard, Ariel AU - Lettieri, Robert AU - Marchant, William AU - Nittler, Larry R AU - Ogliore, Ryan AU - Ong, Wei Ja AU - Postberg, Frank AU - Price, Mark C AU - Sandford, Scott A AU - Tresserras, Juan-Angel Sans AU - Simionovici, Alexandre S AU - Sole, Vicente A AU - Srama, Ralf AU - Stadermann, Frank J AU - Stephan, Thomas AU - Sterken, Veerle J AU - Stodolna, Julien AU - Stroud, Rhonda M AU - Sutton, Steven AU - Trieloff, Mario AU - Tsou, Peter AU - Tsuchiyama, Akira AU - Tyliszczak, Tolek AU - Korff, Joshua AU - Wordsworth, Naomi AU - Zevin, Daniel AU - Zolensky, Michael E AU - Anonymous Y1 - 2014/09// PY - 2014 DA - September 2014 SP - 1594 EP - 1611 PB - Meteoritical Society, Fayetteville, AR VL - 49 IS - 9 SN - 1086-9379, 1086-9379 KW - silicates KW - particle tracks KW - stony meteorites KW - impact features KW - olivine group KW - crystal structure KW - iron KW - synchrotron radiation KW - meteorites KW - Stardust Interstellar Preliminary Examination KW - spacecraft KW - olivine KW - orthosilicates KW - X-ray fluorescence spectra KW - oxides KW - spectra KW - chondrites KW - chemical composition KW - interstellar dust KW - CI chondrites KW - Stardust Mission KW - trajectories KW - spinel KW - carbonaceous chondrites KW - nesosilicates KW - sample preparation KW - cosmic dust KW - metals KW - fine-grained materials KW - aerogel KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1696877624?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Stardust+interstellar+preliminary+examination%3B+V%2C+XRF+analyses+of+interstellar+dust+candidates+at+ESRF+ID13&rft.au=Brenker%2C+Frank+E%3BWestphal%2C+Andrew+J%3BVincze%2C+Laszlo%3BBurghammer%2C+Manfred%3BSchmitz%2C+Sylvia%3BSchoonjans%2C+Tom%3BSilversmit%2C+Geert%3BVekemans%2C+Bart%3BAllen%2C+Carlton%3BAnderson%2C+David%3BAnsari%2C+Asna%3BBajt%2C+Sasa%3BBastien%2C+Ron+K%3BBassim%2C+Nabil%3BBechtel%2C+Hans+A%3BBorg%2C+Janet%3BBridges%2C+John%3BBrownlee%2C+Donald+E%3BBurchell%2C+Mark%3BButterworth%2C+Anna+L%3BChangela%2C+Hitesh%3BCloetens%2C+Peter%3BDavis%2C+Andrew+M%3BDoll%2C+Ryan%3BFloss%2C+Christine%3BFlynn%2C+George+J%3BFougeray%2C+Patrick%3BFrank%2C+David+R%3BGainsforth%2C+Zack%3BGruen%2C+Eberhard%3BHeck%2C+Philipp+R%3BHillier%2C+Jon+K%3BHoppe%2C+Peter%3BHudson%2C+Bruce%3BHuth%2C+Joachim%3BHvide%2C+Brit%3BKearsley%2C+Anton%3BKing%2C+Ashley+J%3BLai%2C+Barry%3BLeitner%2C+Jan%3BLemelle%2C+Laurence%3BLeroux%2C+Hugues%3BLeonard%2C+Ariel%3BLettieri%2C+Robert%3BMarchant%2C+William%3BNittler%2C+Larry+R%3BOgliore%2C+Ryan%3BOng%2C+Wei+Ja%3BPostberg%2C+Frank%3BPrice%2C+Mark+C%3BSandford%2C+Scott+A%3BTresserras%2C+Juan-Angel+Sans%3BSimionovici%2C+Alexandre+S%3BSole%2C+Vicente+A%3BSrama%2C+Ralf%3BStadermann%2C+Frank+J%3BStephan%2C+Thomas%3BSterken%2C+Veerle+J%3BStodolna%2C+Julien%3BStroud%2C+Rhonda+M%3BSutton%2C+Steven%3BTrieloff%2C+Mario%3BTsou%2C+Peter%3BTsuchiyama%2C+Akira%3BTyliszczak%2C+Tolek%3BKorff%2C+Joshua%3BWordsworth%2C+Naomi%3BZevin%2C+Daniel%3BZolensky%2C+Michael+E%3BAnonymous&rft.aulast=Brenker&rft.aufirst=Frank&rft.date=2014-09-01&rft.volume=49&rft.issue=9&rft.spage=1594&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fmaps.12206 L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2015-01-01 N1 - Number of references - 28 N1 - PubXState - AR N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2015-10-15 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - aerogel; carbonaceous chondrites; chemical composition; chondrites; CI chondrites; cosmic dust; crystal structure; fine-grained materials; impact features; interstellar dust; iron; metals; meteorites; nesosilicates; olivine; olivine group; orthosilicates; oxides; particle tracks; sample preparation; silicates; spacecraft; spectra; spinel; Stardust Interstellar Preliminary Examination; Stardust Mission; stony meteorites; synchrotron radiation; trajectories; X-ray fluorescence spectra DO - http://dx.doi.org/10.1111/maps.12206 ER - TY - JOUR T1 - Stardust Interstellar Preliminary Examination, VI, Quantitative elemental analysis by synchrotron X-ray fluorescence nanoimaging of eight impact features in aerogel AN - 1696877025; 2015-068964 AB - Hard X-ray, quantitative, fluorescence elemental imaging was performed on the ID22NI nanoprobe and ID22 microprobe beam lines of the European Synchrotron Research facility (ESRF) in Grenoble, France, on eight interstellar candidate impact features in the framework of the NASA Stardust Interstellar Preliminary Examination (ISPE). Three features were unambiguous tracks, and the other five were identified as possible, but not definite, impact features. Overall, we produced an absolute quantification of elemental abundances in the 15 12). Orion was a highly heterogeneous Fe-bearing particle and contained about 59 fg of heavy elements located in hundred nanometer phases, forming an irregular mantle that surrounded a low-Z core. X-ray diffraction (XRD) measurements revealed Sirius to be amorphous, whereas Orion contained partially crystalline material (Gainsforth et al. 2014). Within the mantle, one grain was relatively Fe-Ni-Mn-rich; other zones were relatively Mn-Cr-Ti-rich and may correspond to different spinel populations. For absolute quantification purposes, Orion was assigned to a mineralogical assemblage of forsterite, spinel, and an unknown Fe-bearing phase, while Sirius was most likely composed of an amorphous Mg-bearing material with minor Ni and Fe. Owing to its nearly chondritic abundances of the nonvolatile elements Ca, Ti, Co, and Ni with respect to Fe, in combination with the presence of olivine and spinel as inferred from XRD measurements, Orion had a high probability of being extraterrestrial in origin. Abstract Copyright The Meteoritical Society, 2014. JF - Meteoritics & Planetary Science AU - Simionovici, Alexandre S AU - Lemelle, Laurence AU - Cloetens, Peter AU - Sole, Vicente A AU - Tresserras, Juan-Angel Sans AU - Butterworth, Anna L AU - Westphal, Andrew J AU - Gainsforth, Zack AU - Stodolna, Julien AU - Allen, Carlton AU - Anderson, David AU - Ansari, Asna AU - Bajt, Sasa AU - Bassim, Nabil AU - Bastien, Ron K AU - Bechtel, Hans A AU - Borg, Janet AU - Brenker, Frank E AU - Bridges, John AU - Brownlee, Donald E AU - Burchell, Mark AU - Burghammer, Manfred AU - Changela, Hitesh AU - Davis, Andrew M AU - Doll, Ryan AU - Floss, Christine AU - Flynn, George J AU - Frank, David R AU - Gruen, Eberhard AU - Heck, Philipp R AU - Hillier, Jon K AU - Hoppe, Peter AU - Hudson, Bruce AU - Huth, Joachim AU - Hvide, Brit AU - Kearsley, Anton AU - King, Ashley J AU - Lai, Barry AU - Leitner, Jan AU - Leonard, Ariel AU - Leroux, Hugues AU - Lettieri, Robert AU - Marchant, William AU - Nittler, Larry R AU - Ogliore, Ryan AU - Ong, Wei Ja AU - Postberg, Frank AU - Price, Mark C AU - Sandford, Scott A AU - Schmitz, Sylvia AU - Schoonjans, Tom AU - Silversmit, Geert AU - Srama, Ralf AU - Stadermann, Frank J AU - Stephan, Thomas AU - Sterken, Veerle J AU - Stroud, Rhonda M AU - Sutton, Steven AU - Trieloff, Mario AU - Tsou, Peter AU - Tsuchiyama, Akira AU - Tyliszczak, Tolek AU - Vekemans, Bart AU - Vincze, Laszlo AU - Korff, Joshua AU - Wordsworth, Naomi AU - Zevin, Daniel AU - Zolensky, Michael E AU - Anonymous Y1 - 2014/09// PY - 2014 DA - September 2014 SP - 1612 EP - 1625 PB - Meteoritical Society, Fayetteville, AR VL - 49 IS - 9 SN - 1086-9379, 1086-9379 KW - silicates KW - alteration KW - particle tracks KW - imagery KW - impact features KW - olivine group KW - iron KW - synchrotron radiation KW - errors KW - quantitative analysis KW - Stardust Interstellar Preliminary Examination KW - orthosilicates KW - X-ray fluorescence spectra KW - oxides KW - spectra KW - chemical composition KW - interstellar dust KW - X-ray fluorescence KW - Stardust Mission KW - spinel KW - forsterite KW - nesosilicates KW - cosmic dust KW - metals KW - nickel KW - aerogel KW - corrections KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1696877025?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Stardust+Interstellar+Preliminary+Examination%2C+VI%2C+Quantitative+elemental+analysis+by+synchrotron+X-ray+fluorescence+nanoimaging+of+eight+impact+features+in+aerogel&rft.au=Simionovici%2C+Alexandre+S%3BLemelle%2C+Laurence%3BCloetens%2C+Peter%3BSole%2C+Vicente+A%3BTresserras%2C+Juan-Angel+Sans%3BButterworth%2C+Anna+L%3BWestphal%2C+Andrew+J%3BGainsforth%2C+Zack%3BStodolna%2C+Julien%3BAllen%2C+Carlton%3BAnderson%2C+David%3BAnsari%2C+Asna%3BBajt%2C+Sasa%3BBassim%2C+Nabil%3BBastien%2C+Ron+K%3BBechtel%2C+Hans+A%3BBorg%2C+Janet%3BBrenker%2C+Frank+E%3BBridges%2C+John%3BBrownlee%2C+Donald+E%3BBurchell%2C+Mark%3BBurghammer%2C+Manfred%3BChangela%2C+Hitesh%3BDavis%2C+Andrew+M%3BDoll%2C+Ryan%3BFloss%2C+Christine%3BFlynn%2C+George+J%3BFrank%2C+David+R%3BGruen%2C+Eberhard%3BHeck%2C+Philipp+R%3BHillier%2C+Jon+K%3BHoppe%2C+Peter%3BHudson%2C+Bruce%3BHuth%2C+Joachim%3BHvide%2C+Brit%3BKearsley%2C+Anton%3BKing%2C+Ashley+J%3BLai%2C+Barry%3BLeitner%2C+Jan%3BLeonard%2C+Ariel%3BLeroux%2C+Hugues%3BLettieri%2C+Robert%3BMarchant%2C+William%3BNittler%2C+Larry+R%3BOgliore%2C+Ryan%3BOng%2C+Wei+Ja%3BPostberg%2C+Frank%3BPrice%2C+Mark+C%3BSandford%2C+Scott+A%3BSchmitz%2C+Sylvia%3BSchoonjans%2C+Tom%3BSilversmit%2C+Geert%3BSrama%2C+Ralf%3BStadermann%2C+Frank+J%3BStephan%2C+Thomas%3BSterken%2C+Veerle+J%3BStroud%2C+Rhonda+M%3BSutton%2C+Steven%3BTrieloff%2C+Mario%3BTsou%2C+Peter%3BTsuchiyama%2C+Akira%3BTyliszczak%2C+Tolek%3BVekemans%2C+Bart%3BVincze%2C+Laszlo%3BKorff%2C+Joshua%3BWordsworth%2C+Naomi%3BZevin%2C+Daniel%3BZolensky%2C+Michael+E%3BAnonymous&rft.aulast=Simionovici&rft.aufirst=Alexandre&rft.date=2014-09-01&rft.volume=49&rft.issue=9&rft.spage=1612&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fmaps.12208 L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2015-01-01 N1 - Number of references - 29 N1 - PubXState - AR N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2015-10-15 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - aerogel; alteration; chemical composition; corrections; cosmic dust; errors; forsterite; imagery; impact features; interstellar dust; iron; metals; nesosilicates; nickel; olivine group; orthosilicates; oxides; particle tracks; quantitative analysis; silicates; spectra; spinel; Stardust Interstellar Preliminary Examination; Stardust Mission; synchrotron radiation; X-ray fluorescence; X-ray fluorescence spectra DO - http://dx.doi.org/10.1111/maps.12208 ER - TY - JOUR T1 - Stardust Interstellar Preliminary Examination; IV, Scanning transmission X-ray microscopy analyses of impact features in the Stardust Interstellar Dust Collector AN - 1696876720; 2015-068962 AB - We report the quantitative characterization by synchrotron soft X-ray spectroscopy of 31 potential impact features in the aerogel capture medium of the Stardust Interstellar Dust Collector. Samples were analyzed in aerogel by acquiring high spatial resolution maps and high energy-resolution spectra of major rock-forming elements Mg, Al, Si, Fe, and others. We developed diagnostic screening tests to reject spacecraft secondary ejecta and terrestrial contaminants from further consideration as interstellar dust candidates. The results support an extraterrestrial origin for three interstellar candidates: I1043,1,30 (Orion) is a 3 pg particle with Mg-spinel, forsterite, and an iron-bearing phase. I1047,1,34 (Hylabrook) is a 4 pg particle comprising an olivine core surrounded by low-density, amorphous Mg-silicate and amorphous Fe, Cr, and Mn phases. I1003,1,40 (Sorok) has the track morphology of a high-speed impact, but contains no detectable residue that is convincingly distinguishable from the background aerogel. Twenty-two samples with an anthropogenic origin were rejected, including four secondary ejecta from impacts on the Stardust spacecraft aft solar panels, nine ejecta from secondary impacts on the Stardust Sample Return Capsule, and nine contaminants lacking evidence of an impact. Other samples in the collection included I1029,1,6, which contained surviving solar system impactor material. Four samples remained ambiguous: I1006,2,18, I1044,2,32, and I1092,2,38 were too dense for analysis, and we did not detect an intact projectile in I1044,3,33. We detected no radiation effects from the synchrotron soft X-ray analyses; however, we recorded the effects of synchrotron hard X-ray radiation on I1043,1,30 and I1047,1,34. Abstract Copyright The Meteoritical Society, 2014. JF - Meteoritics & Planetary Science AU - Butterworth, Anna L AU - Westphal, Andrew J AU - Tyliszczak, Tolek AU - Gainsforth, Zack AU - Stodolna, Julien AU - Frank, David R AU - Allen, Carlton AU - Anderson, David AU - Ansari, Asna AU - Bajt, Sasa AU - Bastien, Ron K AU - Bassim, Nabil AU - Bechtel, Hans A AU - Borg, Janet AU - Brenker, Frank E AU - Bridges, John AU - Brownlee, Donald E AU - Burchell, Mark AU - Burghammer, Manfred AU - Changela, Hitesh AU - Cloetens, Peter AU - Davis, Andrew M AU - Doll, Ryan AU - Floss, Christine AU - Flynn, George J AU - Gruen, Eberhard AU - Heck, Philipp R AU - Hillier, Jon K AU - Hoppe, Peter AU - Hudson, Bruce AU - Huth, Joachim AU - Hvide, Brit AU - Kearsley, Anton AU - King, Ashley J AU - Lai, Barry AU - Leitner, Jan AU - Lemelle, Laurence AU - Leroux, Hugues AU - Leonard, Ariel AU - Lettieri, Robert AU - Marchant, William AU - Nittler, Larry R AU - Ogliore, Ryan AU - Ong, Wei Ja AU - Postberg, Frank AU - Price, Mark C AU - Sandford, Scott A AU - Tresserras, Juan-Angel Sans AU - Schmitz, Sylvia AU - Schoonjans, Tom AU - Silversmit, Geert AU - Simionovici, Alexandre S AU - Sole, Vicente A AU - Srama, Ralf AU - Stadermann, Frank J AU - Stephan, Thomas AU - Sterken, Veerle J AU - Stroud, Rhonda M AU - Sutton, Steven AU - Trieloff, Mario AU - Tsou, Peter AU - Tsuchiyama, Akira AU - Vekemans, Bart AU - Vincze, Laszlo AU - Von Korff, Joshua AU - Wordsworth, Naomi AU - Zevin, Daniel AU - Zolensky, Michael E AU - Anonymous Y1 - 2014/09// PY - 2014 DA - September 2014 SP - 1562 EP - 1593 PB - Meteoritical Society, Fayetteville, AR VL - 49 IS - 9 SN - 1086-9379, 1086-9379 KW - silicates KW - particle tracks KW - magnesium KW - magnesian silicates KW - impact features KW - characterization KW - scanning transmission X-ray microscopy KW - olivine group KW - silicon KW - iron KW - XANES spectra KW - quantitative analysis KW - Stardust Interstellar Preliminary Examination KW - aluminum KW - orthosilicates KW - oxides KW - spectra KW - interstellar dust KW - alkaline earth metals KW - Stardust Mission KW - amorphous materials KW - trajectories KW - spinel KW - ejecta KW - X-ray spectra KW - forsterite KW - nesosilicates KW - Stardust Interstellar Dust Collector KW - cosmic dust KW - metals KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1696876720?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Stardust+Interstellar+Preliminary+Examination%3B+IV%2C+Scanning+transmission+X-ray+microscopy+analyses+of+impact+features+in+the+Stardust+Interstellar+Dust+Collector&rft.au=Butterworth%2C+Anna+L%3BWestphal%2C+Andrew+J%3BTyliszczak%2C+Tolek%3BGainsforth%2C+Zack%3BStodolna%2C+Julien%3BFrank%2C+David+R%3BAllen%2C+Carlton%3BAnderson%2C+David%3BAnsari%2C+Asna%3BBajt%2C+Sasa%3BBastien%2C+Ron+K%3BBassim%2C+Nabil%3BBechtel%2C+Hans+A%3BBorg%2C+Janet%3BBrenker%2C+Frank+E%3BBridges%2C+John%3BBrownlee%2C+Donald+E%3BBurchell%2C+Mark%3BBurghammer%2C+Manfred%3BChangela%2C+Hitesh%3BCloetens%2C+Peter%3BDavis%2C+Andrew+M%3BDoll%2C+Ryan%3BFloss%2C+Christine%3BFlynn%2C+George+J%3BGruen%2C+Eberhard%3BHeck%2C+Philipp+R%3BHillier%2C+Jon+K%3BHoppe%2C+Peter%3BHudson%2C+Bruce%3BHuth%2C+Joachim%3BHvide%2C+Brit%3BKearsley%2C+Anton%3BKing%2C+Ashley+J%3BLai%2C+Barry%3BLeitner%2C+Jan%3BLemelle%2C+Laurence%3BLeroux%2C+Hugues%3BLeonard%2C+Ariel%3BLettieri%2C+Robert%3BMarchant%2C+William%3BNittler%2C+Larry+R%3BOgliore%2C+Ryan%3BOng%2C+Wei+Ja%3BPostberg%2C+Frank%3BPrice%2C+Mark+C%3BSandford%2C+Scott+A%3BTresserras%2C+Juan-Angel+Sans%3BSchmitz%2C+Sylvia%3BSchoonjans%2C+Tom%3BSilversmit%2C+Geert%3BSimionovici%2C+Alexandre+S%3BSole%2C+Vicente+A%3BSrama%2C+Ralf%3BStadermann%2C+Frank+J%3BStephan%2C+Thomas%3BSterken%2C+Veerle+J%3BStroud%2C+Rhonda+M%3BSutton%2C+Steven%3BTrieloff%2C+Mario%3BTsou%2C+Peter%3BTsuchiyama%2C+Akira%3BVekemans%2C+Bart%3BVincze%2C+Laszlo%3BVon+Korff%2C+Joshua%3BWordsworth%2C+Naomi%3BZevin%2C+Daniel%3BZolensky%2C+Michael+E%3BAnonymous&rft.aulast=Butterworth&rft.aufirst=Anna&rft.date=2014-09-01&rft.volume=49&rft.issue=9&rft.spage=1562&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fmaps.12220 L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2015-01-01 N1 - Number of references - 33 N1 - PubXState - AR N1 - Document feature - illus. incl. 5 tables N1 - Last updated - 2015-10-15 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - alkaline earth metals; aluminum; amorphous materials; characterization; cosmic dust; ejecta; forsterite; impact features; interstellar dust; iron; magnesian silicates; magnesium; metals; nesosilicates; olivine group; orthosilicates; oxides; particle tracks; quantitative analysis; scanning transmission X-ray microscopy; silicates; silicon; spectra; spinel; Stardust Interstellar Dust Collector; Stardust Interstellar Preliminary Examination; Stardust Mission; trajectories; X-ray spectra; XANES spectra DO - http://dx.doi.org/10.1111/maps.12220 ER - TY - JOUR T1 - Stardust Interstellar Preliminary Examination; VII, Synchrotron X-ray fluorescence analysis of six Stardust interstellar candidates measured with the Advanced Photon Source 2-ID-D microprobe AN - 1696876094; 2015-068965 AB - The NASA Stardust spacecraft exposed an aerogel collector to the interstellar dust passing through the solar system. We performed X-ray fluorescence element mapping and abundance measurements, for elements 19 < or = Z < or = 30, on six "interstellar candidates," potential interstellar impacts identified by Stardust[at]Home and extracted for analyses in picokeystones. One, I1044,3,33, showed no element hot-spots within the designated search area. However, we identified a nearby surface feature, consistent with the impact of a weak, high-speed particle having an approximately chondritic (CI) element abundance pattern, except for factor-of-ten enrichments in K and Zn and an S depletion. This hot-spot, containing approximately 10 fg of Fe, corresponds to an approximately 350 nm chondritic particle, small enough to be missed by Stardust[at]Home, indicating that other techniques may be necessary to identify all interstellar candidates. Only one interstellar candidate, I1004,1,2, showed a track. The terminal particle has large enrichments in S, Ti, Cr, Mn, Ni, Cu, and Zn relative to Fe-normalized CI values. It has high Al/Fe, but does not match the Ni/Fe range measured for samples of Al-deck material from the Stardust sample return capsule, which was within the field-of-view of the interstellar collector. A third interstellar candidate, I1075,1,25, showed an Al-rich surface feature that has a composition generally consistent with the Al-deck material, suggesting that it is a secondary particle. The other three interstellar candidates, I1001,1,16, I1001,2,17, and I1044,2,32, showed no impact features or tracks, but allowed assessment of submicron contamination in this aerogel, including Fe hot-spots having CI-like Ni/Fe ratios, complicating the search for CI-like interstellar/interplanetary dust. Abstract Copyright The Meteoritical Society, 2014. JF - Meteoritics & Planetary Science AU - Flynn, George J AU - Sutton, Steven R AU - Lai, Barry AU - Wirick, Sue AU - Allen, Carlton AU - Anderson, David AU - Ansari, Asna AU - Bajt, Sasa AU - Bastien, Ron K AU - Bassim, Nabil AU - Bechtel, Hans A AU - Borg, Janet AU - Brenker, Frank E AU - Bridges, John AU - Brownlee, Donald E AU - Burchell, Mark AU - Burghammer, Manfred AU - Butterworth, Anna L AU - Changela, Hitesh AU - Cloetens, Peter AU - Davis, Andrew M AU - Doll, Ryan AU - Floss, Christine AU - Frank, David R AU - Gainsforth, Zack AU - Gruen, Eberhard AU - Heck, Philipp R AU - Hillier, Jon K AU - Hoppe, Peter AU - Hudson, Bruce AU - Huth, Joachim AU - Hvide, Brit AU - Kearsley, Anton AU - King, Ashley J AU - Leitner, Jan AU - Lemelle, Laurence AU - Leroux, Hugues AU - Leonard, Ariel AU - Lettieri, Robert AU - Marchant, William AU - Nittler, Larry R AU - Ogliore, Ryan AU - Ong, Wei Ja AU - Postberg, Frank AU - Price, Mark C AU - Sandford, Scott A AU - Tresserras, Juan-Angel Sans AU - Schmitz, Sylvia AU - Schoonjans, Tom AU - Silversmit, Geert AU - Simionovici, Alexandre S AU - Sole, Vicente A AU - Srama, Ralf AU - Stadermann, Frank J AU - Stephan, Thomas AU - Sterken, Veerle J AU - Stodolna, Julien AU - Stroud, Rhonda M AU - Trieloff, Mario AU - Tsou, Peter AU - Tsuchiyama, Akira AU - Tyliszczak, Tolek AU - Vekemans, Bart AU - Vincze, Laszlo AU - Von Korff, Joshua AU - Westphal, Andrew J AU - Wordsworth, Naomi AU - Zevin, Daniel AU - Zolensky, Michael E AU - Anonymous Y1 - 2014/09// PY - 2014 DA - September 2014 SP - 1626 EP - 1644 PB - Meteoritical Society, Fayetteville, AR VL - 49 IS - 9 SN - 1086-9379, 1086-9379 KW - zinc KW - particle tracks KW - ion probe data KW - Stardust Mission KW - detection limit KW - enrichment KW - alkali metals KW - mass spectra KW - picokeystones KW - impacts KW - iron KW - synchrotron radiation KW - cosmic dust KW - Stardust Interstellar Preliminary Examination KW - metals KW - potassium KW - X-ray fluorescence spectra KW - sulfur KW - aerogel KW - spectra KW - chemical composition KW - interstellar dust KW - depletion KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1696876094?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Stardust+Interstellar+Preliminary+Examination%3B+VII%2C+Synchrotron+X-ray+fluorescence+analysis+of+six+Stardust+interstellar+candidates+measured+with+the+Advanced+Photon+Source+2-ID-D+microprobe&rft.au=Flynn%2C+George+J%3BSutton%2C+Steven+R%3BLai%2C+Barry%3BWirick%2C+Sue%3BAllen%2C+Carlton%3BAnderson%2C+David%3BAnsari%2C+Asna%3BBajt%2C+Sasa%3BBastien%2C+Ron+K%3BBassim%2C+Nabil%3BBechtel%2C+Hans+A%3BBorg%2C+Janet%3BBrenker%2C+Frank+E%3BBridges%2C+John%3BBrownlee%2C+Donald+E%3BBurchell%2C+Mark%3BBurghammer%2C+Manfred%3BButterworth%2C+Anna+L%3BChangela%2C+Hitesh%3BCloetens%2C+Peter%3BDavis%2C+Andrew+M%3BDoll%2C+Ryan%3BFloss%2C+Christine%3BFrank%2C+David+R%3BGainsforth%2C+Zack%3BGruen%2C+Eberhard%3BHeck%2C+Philipp+R%3BHillier%2C+Jon+K%3BHoppe%2C+Peter%3BHudson%2C+Bruce%3BHuth%2C+Joachim%3BHvide%2C+Brit%3BKearsley%2C+Anton%3BKing%2C+Ashley+J%3BLeitner%2C+Jan%3BLemelle%2C+Laurence%3BLeroux%2C+Hugues%3BLeonard%2C+Ariel%3BLettieri%2C+Robert%3BMarchant%2C+William%3BNittler%2C+Larry+R%3BOgliore%2C+Ryan%3BOng%2C+Wei+Ja%3BPostberg%2C+Frank%3BPrice%2C+Mark+C%3BSandford%2C+Scott+A%3BTresserras%2C+Juan-Angel+Sans%3BSchmitz%2C+Sylvia%3BSchoonjans%2C+Tom%3BSilversmit%2C+Geert%3BSimionovici%2C+Alexandre+S%3BSole%2C+Vicente+A%3BSrama%2C+Ralf%3BStadermann%2C+Frank+J%3BStephan%2C+Thomas%3BSterken%2C+Veerle+J%3BStodolna%2C+Julien%3BStroud%2C+Rhonda+M%3BTrieloff%2C+Mario%3BTsou%2C+Peter%3BTsuchiyama%2C+Akira%3BTyliszczak%2C+Tolek%3BVekemans%2C+Bart%3BVincze%2C+Laszlo%3BVon+Korff%2C+Joshua%3BWestphal%2C+Andrew+J%3BWordsworth%2C+Naomi%3BZevin%2C+Daniel%3BZolensky%2C+Michael+E%3BAnonymous&rft.aulast=Flynn&rft.aufirst=George&rft.date=2014-09-01&rft.volume=49&rft.issue=9&rft.spage=1626&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fmaps.12144 L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2015-01-01 N1 - Number of references - 21 N1 - PubXState - AR N1 - Document feature - illus. N1 - Last updated - 2015-10-15 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - aerogel; alkali metals; chemical composition; cosmic dust; depletion; detection limit; enrichment; impacts; interstellar dust; ion probe data; iron; mass spectra; metals; particle tracks; picokeystones; potassium; spectra; Stardust Interstellar Preliminary Examination; Stardust Mission; sulfur; synchrotron radiation; X-ray fluorescence spectra; zinc DO - http://dx.doi.org/10.1111/maps.12144 ER - TY - JOUR T1 - Stardust Interstellar Preliminary Examination, XI, Identification and elemental analysis of impact craters on Al foils from the Stardust interstellar dust collector AN - 1696876008; 2015-068969 AB - The Stardust Interstellar Preliminary Examination team analyzed thirteen Al foils from the NASA Stardust interstellar collector tray in order to locate candidate interstellar dust (ISD) grain impacts. Scanning electron microscope (SEM) images reveal that the foils possess abundant impact crater and crater-like features. Elemental analyses of the crater features, with Auger electron spectroscopy, SEM-based energy dispersive X-ray (EDX) spectroscopy, and scanning transmission electron microscope-based EDX spectroscopy, demonstrate that the majority are either the result of impacting debris fragments from the spacecraft solar panels, or intrinsic defects in the foil. The elemental analyses also reveal that four craters contain residues of a definite extraterrestrial origin, either as interplanetary dust particles or ISD particles. These four craters are designated level 2 interstellar candidates, based on the crater shapes indicative of hypervelocity impacts and the residue compositions inconsistent with spacecraft debris. Abstract Copyright Published 2014. This article is a U.S. Government work and is in the public domain in the USA. JF - Meteoritics & Planetary Science AU - Stroud, Rhonda M AU - Allen, Carlton AU - Ansari, Asna AU - Anderson, David AU - Bajt, Sasa AU - Bassim, Nabil AU - Bastien, Ron S AU - Bechtel, Hans A AU - Borg, Janet AU - Brenker, Frank E AU - Bridges, John AU - Brownlee, Donald E AU - Burchell, Mark AU - Burghammer, Manfred AU - Butterworth, Anna L AU - Changela, Hitesh AU - Cloetens, Peter AU - Davis, Andrew M AU - Doll, Ryan AU - Floss, Christine AU - Flynn, George J AU - Frank, David R AU - Gainsforth, Zack AU - Gruen, Eberhard AU - Heck, Philipp R AU - Hillier, Jon K AU - Hoppe, Peter AU - Huth, Joachim AU - Hvide, Brit AU - Kearsley, Anton AU - King, Ashley J AU - Kotula, Paul AU - Lai, Barry AU - Leitner, Jan AU - Lemelle, Laurence AU - Leroux, Hugues AU - Leonard, Ariel AU - Lettieri, Robert AU - Marchant, William AU - Nittler, Larry R AU - Ogliore, Ryan AU - Ong, Wei Ja AU - Postberg, Frank AU - Price, Mark C AU - Sandford, Scott A AU - Tresserras, Juan-Angel Sans AU - Schmitz, Sylvia AU - Schoonjans, Tom AU - Schreiber, Kate AU - Silversmit, Geert AU - Simionovici, Alexandre S AU - Sole, Vicente A AU - Srama, Ralf AU - Stephan, Thomas AU - Sterken, Veerle J AU - Stodolna, Julien AU - Sutton, Steven AU - Trieloff, Mario AU - Tsou, Peter AU - Tsuchiyama, Akira AU - Tyliszczak, Tolek AU - Vekemans, Bart AU - Vincze, Laszlo AU - Westphal, Andrew J AU - Von Korff, Joshua AU - Zevin, Daniel AU - Zolensky, Michael E AU - Anonymous Y1 - 2014/09// PY - 2014 DA - September 2014 SP - 1698 EP - 1719 PB - Meteoritical Society, Fayetteville, AR VL - 49 IS - 9 SN - 1086-9379, 1086-9379 KW - aluminum foils KW - impact features KW - Stardust Mission KW - electron microscopy data KW - impacts KW - X-ray spectra KW - EDS spectra KW - cosmic dust KW - hypervelocity impacts KW - Stardust Interstellar Preliminary Examination KW - identification KW - impact craters KW - spectra KW - chemical composition KW - interstellar dust KW - SEM data KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1696876008?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Stardust+Interstellar+Preliminary+Examination%2C+XI%2C+Identification+and+elemental+analysis+of+impact+craters+on+Al+foils+from+the+Stardust+interstellar+dust+collector&rft.au=Stroud%2C+Rhonda+M%3BAllen%2C+Carlton%3BAnsari%2C+Asna%3BAnderson%2C+David%3BBajt%2C+Sasa%3BBassim%2C+Nabil%3BBastien%2C+Ron+S%3BBechtel%2C+Hans+A%3BBorg%2C+Janet%3BBrenker%2C+Frank+E%3BBridges%2C+John%3BBrownlee%2C+Donald+E%3BBurchell%2C+Mark%3BBurghammer%2C+Manfred%3BButterworth%2C+Anna+L%3BChangela%2C+Hitesh%3BCloetens%2C+Peter%3BDavis%2C+Andrew+M%3BDoll%2C+Ryan%3BFloss%2C+Christine%3BFlynn%2C+George+J%3BFrank%2C+David+R%3BGainsforth%2C+Zack%3BGruen%2C+Eberhard%3BHeck%2C+Philipp+R%3BHillier%2C+Jon+K%3BHoppe%2C+Peter%3BHuth%2C+Joachim%3BHvide%2C+Brit%3BKearsley%2C+Anton%3BKing%2C+Ashley+J%3BKotula%2C+Paul%3BLai%2C+Barry%3BLeitner%2C+Jan%3BLemelle%2C+Laurence%3BLeroux%2C+Hugues%3BLeonard%2C+Ariel%3BLettieri%2C+Robert%3BMarchant%2C+William%3BNittler%2C+Larry+R%3BOgliore%2C+Ryan%3BOng%2C+Wei+Ja%3BPostberg%2C+Frank%3BPrice%2C+Mark+C%3BSandford%2C+Scott+A%3BTresserras%2C+Juan-Angel+Sans%3BSchmitz%2C+Sylvia%3BSchoonjans%2C+Tom%3BSchreiber%2C+Kate%3BSilversmit%2C+Geert%3BSimionovici%2C+Alexandre+S%3BSole%2C+Vicente+A%3BSrama%2C+Ralf%3BStephan%2C+Thomas%3BSterken%2C+Veerle+J%3BStodolna%2C+Julien%3BSutton%2C+Steven%3BTrieloff%2C+Mario%3BTsou%2C+Peter%3BTsuchiyama%2C+Akira%3BTyliszczak%2C+Tolek%3BVekemans%2C+Bart%3BVincze%2C+Laszlo%3BWestphal%2C+Andrew+J%3BVon+Korff%2C+Joshua%3BZevin%2C+Daniel%3BZolensky%2C+Michael+E%3BAnonymous&rft.aulast=Stroud&rft.aufirst=Rhonda&rft.date=2014-09-01&rft.volume=49&rft.issue=9&rft.spage=1698&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fmaps.12136 L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2015-01-01 N1 - Number of references - 39 N1 - PubXState - AR N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2015-10-15 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - aluminum foils; chemical composition; cosmic dust; EDS spectra; electron microscopy data; hypervelocity impacts; identification; impact craters; impact features; impacts; interstellar dust; SEM data; spectra; Stardust Interstellar Preliminary Examination; Stardust Mission; X-ray spectra DO - http://dx.doi.org/10.1111/maps.12136 ER - TY - JOUR T1 - Stardust Interstellar Preliminary Examination; III, Infrared spectroscopic analysis of interstellar dust candidates AN - 1696875753; 2015-068961 AB - Under the auspices of the Stardust Interstellar Preliminary Examination, picokeystones extracted from the Stardust Interstellar Dust Collector were examined with synchrotron Fourier transform infrared (FTIR) microscopy to establish whether they contained extraterrestrial organic material. The picokeystones were found to be contaminated with varying concentrations and speciation of organics in the native aerogel, which hindered the search for organics in the interstellar dust candidates. Furthermore, examination of the picokeystones prior to and post X-ray microprobe analyses yielded evidence of beam damage in the form of organic deposition or modification, particularly with hard X-ray synchrotron X-ray fluorescence. From these results, it is clear that considerable care must be taken to interpret any organics that might be in interstellar dust particles. For the interstellar candidates examined thus far, however, there is no clear evidence of extraterrestrial organics associated with the track and/or terminal particles. However, we detected organic matter associated with the terminal particle in Track 37, likely a secondary impact from the Al-deck of the sample return capsule, demonstrating the ability of synchrotron FTIR to detect organic matter in small particles within picokeystones from the Stardust interstellar dust collector. Abstract Copyright The Meteoritical Society, 2014. JF - Meteoritics & Planetary Science AU - Bechtel, Hans A AU - Flynn, George J AU - Allen, Carlton AU - Anderson, David AU - Ansari, Asna AU - Bajt, Sasa AU - Bastien, Ron K AU - Bassim, Nabil AU - Borg, Janet AU - Brenker, Frank E AU - Bridges, John AU - Brownlee, Donald E AU - Burchell, Mark AU - Burghammer, Manfred AU - Butterworth, Anna L AU - Changela, Hitesh AU - Cloetens, Peter AU - Davis, Andrew M AU - Doll, Ryan AU - Floss, Christine AU - Frank, David R AU - Gainsforth, Zack AU - Gruen, Eberhard AU - Heck, Philipp R AU - Hillier, Jon K AU - Hoppe, Peter AU - Hudson, Bruce AU - Huth, Joachim AU - Hvide, Brit AU - Kearsley, Anton AU - King, Ashley J AU - Lai, Barry AU - Leitner, Jan AU - Lemelle, Laurence AU - Leroux, Hugues AU - Leonard, Ariel AU - Lettieri, Robert AU - Marchant, William AU - Nittler, Larry R AU - Ogliore, Ryan AU - Ong, Wei Ja AU - Postberg, Frank AU - Price, Mark C AU - Sandford, Scott A AU - Tresserras, Juan-Angel Sans AU - Schmitz, Sylvia AU - Schoonjans, Tom AU - Silversmit, Geert AU - Simionovici, Alexandre S AU - Sole, Vicente A AU - Srama, Ralf AU - Stadermann, Frank J AU - Stephan, Thomas AU - Sterken, Veerle J AU - Stodolna, Julien AU - Stroud, Rhonda M AU - Sutton, Steven AU - Trieloff, Mario AU - Tsou, Peter AU - Tsuchiyama, Akira AU - Tyliszczak, Tolek AU - Vekemans, Bart AU - Vincze, Laszlo AU - Von Korff, Joshua AU - Westphal, Andrew J AU - Wordsworth, Naomi AU - Zevin, Daniel AU - Zolensky, Michael E AU - Anonymous Y1 - 2014/09// PY - 2014 DA - September 2014 SP - 1548 EP - 1561 PB - Meteoritical Society, Fayetteville, AR VL - 49 IS - 9 SN - 1086-9379, 1086-9379 KW - methods KW - particle tracks KW - Stardust Mission KW - aliphatic hydrocarbons KW - picokeystones KW - infrared spectra KW - synchrotron radiation KW - FTIR spectra KW - organic compounds KW - cosmic dust KW - detection KW - Stardust Interstellar Preliminary Examination KW - carbon KW - hydrocarbons KW - aerogel KW - spectra KW - organic carbon KW - interstellar dust KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1696875753?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Stardust+Interstellar+Preliminary+Examination%3B+III%2C+Infrared+spectroscopic+analysis+of+interstellar+dust+candidates&rft.au=Bechtel%2C+Hans+A%3BFlynn%2C+George+J%3BAllen%2C+Carlton%3BAnderson%2C+David%3BAnsari%2C+Asna%3BBajt%2C+Sasa%3BBastien%2C+Ron+K%3BBassim%2C+Nabil%3BBorg%2C+Janet%3BBrenker%2C+Frank+E%3BBridges%2C+John%3BBrownlee%2C+Donald+E%3BBurchell%2C+Mark%3BBurghammer%2C+Manfred%3BButterworth%2C+Anna+L%3BChangela%2C+Hitesh%3BCloetens%2C+Peter%3BDavis%2C+Andrew+M%3BDoll%2C+Ryan%3BFloss%2C+Christine%3BFrank%2C+David+R%3BGainsforth%2C+Zack%3BGruen%2C+Eberhard%3BHeck%2C+Philipp+R%3BHillier%2C+Jon+K%3BHoppe%2C+Peter%3BHudson%2C+Bruce%3BHuth%2C+Joachim%3BHvide%2C+Brit%3BKearsley%2C+Anton%3BKing%2C+Ashley+J%3BLai%2C+Barry%3BLeitner%2C+Jan%3BLemelle%2C+Laurence%3BLeroux%2C+Hugues%3BLeonard%2C+Ariel%3BLettieri%2C+Robert%3BMarchant%2C+William%3BNittler%2C+Larry+R%3BOgliore%2C+Ryan%3BOng%2C+Wei+Ja%3BPostberg%2C+Frank%3BPrice%2C+Mark+C%3BSandford%2C+Scott+A%3BTresserras%2C+Juan-Angel+Sans%3BSchmitz%2C+Sylvia%3BSchoonjans%2C+Tom%3BSilversmit%2C+Geert%3BSimionovici%2C+Alexandre+S%3BSole%2C+Vicente+A%3BSrama%2C+Ralf%3BStadermann%2C+Frank+J%3BStephan%2C+Thomas%3BSterken%2C+Veerle+J%3BStodolna%2C+Julien%3BStroud%2C+Rhonda+M%3BSutton%2C+Steven%3BTrieloff%2C+Mario%3BTsou%2C+Peter%3BTsuchiyama%2C+Akira%3BTyliszczak%2C+Tolek%3BVekemans%2C+Bart%3BVincze%2C+Laszlo%3BVon+Korff%2C+Joshua%3BWestphal%2C+Andrew+J%3BWordsworth%2C+Naomi%3BZevin%2C+Daniel%3BZolensky%2C+Michael+E%3BAnonymous&rft.aulast=Bechtel&rft.aufirst=Hans&rft.date=2014-09-01&rft.volume=49&rft.issue=9&rft.spage=1548&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fmaps.12125 L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2015-01-01 N1 - Number of references - 30 N1 - PubXState - AR N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2015-10-15 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - aerogel; aliphatic hydrocarbons; carbon; cosmic dust; detection; FTIR spectra; hydrocarbons; infrared spectra; interstellar dust; methods; organic carbon; organic compounds; particle tracks; picokeystones; spectra; Stardust Interstellar Preliminary Examination; Stardust Mission; synchrotron radiation DO - http://dx.doi.org/10.1111/maps.12125 ER - TY - JOUR T1 - Stardust Interstellar Preliminary Examination; VIII, Identification of crystalline material in two interstellar candidates AN - 1696875666; 2015-068966 AB - Using synchrotron-based X-ray diffraction measurements, we identified crystalline material in two particles of extraterrestrial origin extracted from the Stardust Interstellar Dust Collector. The first particle, I1047,1,34 (Hylabrook), consisted of a mosaiced olivine grain approximately 1 mu m in size with internal strain fields up to 0.3%. The unit cell dimensions were a = 4.85 + or - 0.08 Aa, b = 10.34 + or - 0.16 Aa, c = 6.08 + or - 0.13 Aa (2sigma ). The second particle, I1043,1,30 (Orion), contained an olivine grain nearly equal 2 mu m in length and >500 nm in width. It was polycrystalline with both mosaiced domains varying over nearly equal 20 degrees and additional unoriented domains, and contained internal strain fields Fo (sub 65) (2sigma ). Orion also contained abundant spinel nanocrystals of unknown composition, but unit cell dimension a = 8.06 + or - 0.08 Aa (2sigma ). Two additional crystalline phases were present and remained unidentified. An amorphous component appeared to be present in both these particles based on STXM and XRF results reported elsewhere. Abstract Copyright Published 2014. This article is a U.S. Government work and is in the public domain in the USA. JF - Meteoritics & Planetary Science AU - Gainsforth, Zack AU - Brenker, Frank E AU - Simionovici, Alexandre S AU - Schmitz, Sylvia AU - Burghammer, Manfred AU - Butterworth, Anna L AU - Cloetens, Peter AU - Lemelle, Laurence AU - Tresserras, Juan-Angel Sans AU - Schoonjans, Tom AU - Silversmit, Geert AU - Sole, Vicente A AU - Vekemans, Bart AU - Vincze, Laszlo AU - Westphal, Andrew J AU - Allen, Carlton AU - Anderson, David AU - Ansari, Asna AU - Bajt, Sasa AU - Bastien, Ron K AU - Bassim, Nabil AU - Bechtel, Hans A AU - Borg, Janet AU - Bridges, John AU - Brownlee, Donald E AU - Burchell, Mark AU - Changela, Hitesh AU - Davis, Andrew M AU - Doll, Ryan AU - Floss, Christine AU - Flynn, George AU - Fougeray, Patrick AU - Frank, David R AU - Gruen, Eberhard AU - Heck, Philipp R AU - Hillier, Jon K AU - Hoppe, Peter AU - Hudson, Bruce AU - Huth, Joachim AU - Hvide, Brit AU - Kearsley, Anton AU - King, Ashley J AU - Lai, Barry AU - Leitner, Jan AU - Leroux, Hugues AU - Leonard, Ariel AU - Lettieri, Robert AU - Marchant, William AU - Nittler, Larry R AU - Ogliore, Ryan AU - Ong, Wei Ja AU - Postberg, Frank AU - Price, Mark C AU - Sandford, Scott A AU - Srama, Ralf AU - Stephan, Thomas AU - Sterken, Veerle J AU - Stodolna, Julien AU - Stroud, Rhonda M AU - Sutton, Steven AU - Trieloff, Mario AU - Tsou, Peter AU - Tsuchiyama, Akira AU - Tyliszczak, Tolek AU - Von Korff, Joshua AU - Zevin, Daniel AU - Zolensky, Michael E AU - Anonymous Y1 - 2014/09// PY - 2014 DA - September 2014 SP - 1645 EP - 1665 PB - Meteoritical Society, Fayetteville, AR VL - 49 IS - 9 SN - 1086-9379, 1086-9379 KW - silicates KW - cell dimensions KW - X-ray diffraction data KW - strain KW - Stardust Mission KW - microstructure KW - unit cell KW - spinel KW - olivine group KW - powder method KW - crystallinity KW - synchrotron radiation KW - nesosilicates KW - cosmic dust KW - Stardust Interstellar Preliminary Examination KW - olivine KW - orthosilicates KW - oxides KW - interstellar dust KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1696875666?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Stardust+Interstellar+Preliminary+Examination%3B+VIII%2C+Identification+of+crystalline+material+in+two+interstellar+candidates&rft.au=Gainsforth%2C+Zack%3BBrenker%2C+Frank+E%3BSimionovici%2C+Alexandre+S%3BSchmitz%2C+Sylvia%3BBurghammer%2C+Manfred%3BButterworth%2C+Anna+L%3BCloetens%2C+Peter%3BLemelle%2C+Laurence%3BTresserras%2C+Juan-Angel+Sans%3BSchoonjans%2C+Tom%3BSilversmit%2C+Geert%3BSole%2C+Vicente+A%3BVekemans%2C+Bart%3BVincze%2C+Laszlo%3BWestphal%2C+Andrew+J%3BAllen%2C+Carlton%3BAnderson%2C+David%3BAnsari%2C+Asna%3BBajt%2C+Sasa%3BBastien%2C+Ron+K%3BBassim%2C+Nabil%3BBechtel%2C+Hans+A%3BBorg%2C+Janet%3BBridges%2C+John%3BBrownlee%2C+Donald+E%3BBurchell%2C+Mark%3BChangela%2C+Hitesh%3BDavis%2C+Andrew+M%3BDoll%2C+Ryan%3BFloss%2C+Christine%3BFlynn%2C+George%3BFougeray%2C+Patrick%3BFrank%2C+David+R%3BGruen%2C+Eberhard%3BHeck%2C+Philipp+R%3BHillier%2C+Jon+K%3BHoppe%2C+Peter%3BHudson%2C+Bruce%3BHuth%2C+Joachim%3BHvide%2C+Brit%3BKearsley%2C+Anton%3BKing%2C+Ashley+J%3BLai%2C+Barry%3BLeitner%2C+Jan%3BLeroux%2C+Hugues%3BLeonard%2C+Ariel%3BLettieri%2C+Robert%3BMarchant%2C+William%3BNittler%2C+Larry+R%3BOgliore%2C+Ryan%3BOng%2C+Wei+Ja%3BPostberg%2C+Frank%3BPrice%2C+Mark+C%3BSandford%2C+Scott+A%3BSrama%2C+Ralf%3BStephan%2C+Thomas%3BSterken%2C+Veerle+J%3BStodolna%2C+Julien%3BStroud%2C+Rhonda+M%3BSutton%2C+Steven%3BTrieloff%2C+Mario%3BTsou%2C+Peter%3BTsuchiyama%2C+Akira%3BTyliszczak%2C+Tolek%3BVon+Korff%2C+Joshua%3BZevin%2C+Daniel%3BZolensky%2C+Michael+E%3BAnonymous&rft.aulast=Gainsforth&rft.aufirst=Zack&rft.date=2014-09-01&rft.volume=49&rft.issue=9&rft.spage=1645&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fmaps.12148 L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2015-01-01 N1 - Number of references - 55 N1 - PubXState - AR N1 - Document feature - illus. incl. 7 tables N1 - Last updated - 2015-10-15 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - cell dimensions; cosmic dust; crystallinity; interstellar dust; microstructure; nesosilicates; olivine; olivine group; orthosilicates; oxides; powder method; silicates; spinel; Stardust Interstellar Preliminary Examination; Stardust Mission; strain; synchrotron radiation; unit cell; X-ray diffraction data DO - http://dx.doi.org/10.1111/maps.12148 ER - TY - JOUR T1 - Stardust Interstellar Preliminary Examination; IX, high-speed interstellar dust analog capture in Stardust flight-spare aerogel AN - 1696875570; 2015-068967 AB - The NASA Stardust mission used silica aerogel slabs to slowly decelerate and capture impinging cosmic dust particles for return to Earth. During this process, impact tracks are generated along the trajectory of the particle into the aerogel. It is believed that the morphology and dimensions of these tracks, together with the state of captured grains at track termini, may be linked to the size, velocity, and density of the impacting cosmic dust grain. Here, we present the results of laboratory hypervelocity impact experiments, during which cosmic dust analog particles (diameters of between 0.2 and 0.4 mu m), composed of olivine, orthopyroxene, or an organic polymer, were accelerated onto Stardust flight-spare low-density (approximately 0.01 g cm (super -3) ) silica aerogel. The impact velocities (3-21 km s (super -1) ) were chosen to simulate the range of velocities expected during Stardust's interstellar dust (ISD) collection phases. Track lengths and widths, together with the success of particle capture, are analyzed as functions of impact velocity and particle composition, density, and size. Captured terminal particles from low-density organic projectiles become undetectable at lower velocities than those from similarly sized, denser mineral particles, which are still detectable (although substantially altered by the impact process) at 15 km s (super -1) . The survival of these terminal particles, together with the track dimensions obtained during low impact speed capture of small grains in the laboratory, indicates that two of the three best Stardust candidate extraterrestrial grains were actually captured at speeds much lower than predicted. Track length and diameters are, in general, more sensitive to impact velocities than previously expected, which makes tracks of particles with diameters of 0.4 mu m and below hard to identify at low capture speeds (<10 km s (super -1) ). Therefore, although captured intact, the majority of the interstellar dust grains returned to Earth by Stardust remain to be found. Abstract Copyright The Meteoritical Society, 2014. JF - Meteoritics & Planetary Science AU - Postberg, Frank AU - Hillier, John K AU - Armes, S P AU - Bugiel, S AU - Butterworth, Anna L AU - Dupin, D AU - Fielding, L A AU - Fujii, S AU - Gainsforth, Zack AU - Gruen, Eberhard AU - Li, Y W AU - Srama, Ralf AU - Sterken, Veerle J AU - Stodolna, Julien AU - Trieloff, Mario AU - Westphal, Andrew J AU - Achilles, C AU - Allen, Carlton AU - Ansari, Asna AU - Bajt, Sasa AU - Bassim, Nabil AU - Bastien, Ron K AU - Bechtel, Hans A AU - Borg, Janet AU - Brenker, Frank E AU - Bridges, John AU - Brownlee, Donald E AU - Burchell, Mark AU - Burghammer, Manfred AU - Changela, Hitesh AU - Cloetens, Peter AU - Davis, Andrew M AU - Doll, Ryan AU - Floss, Christine AU - Flynn, George J AU - Frank, David R AU - Heck, Philipp R AU - Hoppe, Peter AU - Huss, G AU - Huth, Joachim AU - Kearsley, Anton AU - King, Ashley J AU - Lai, Barry AU - Leitner, Jan AU - Lemelle, Laurence AU - Leonard, Ariel AU - Leroux, Hugues AU - Lettieri, Robert AU - Marchant, William AU - Nittler, Larry R AU - Ogliore, Ryan AU - Ong, Wei Ja AU - Price, Mark C AU - Sandford, Scott A AU - Tresserras, Juan-Angel Sans AU - Schmitz, Sylvia AU - Schoonjans, Tom AU - Schreiber, Kate AU - Silversmit, Geert AU - Simionovici, Alexandre S AU - Sole, Vicente A AU - Stadermann, Frank J AU - Stephan, Thomas AU - Stroud, Rhonda AU - Sutton, Steven AU - Tsou, Peter AU - Tsuchiyama, Akira AU - Tyliszczak, Tolek AU - Vekemans, Bart AU - Vincze, Laszlo AU - Zevin, Daniel AU - Zolensky, Michael E AU - Anonymous Y1 - 2014/09// PY - 2014 DA - September 2014 SP - 1666 EP - 1679 PB - Meteoritical Society, Fayetteville, AR VL - 49 IS - 9 SN - 1086-9379, 1086-9379 KW - silicates KW - particle tracks KW - density KW - acceleration KW - olivine group KW - laboratory studies KW - pyroxene group KW - hypervelocity impacts KW - Stardust Interstellar Preliminary Examination KW - olivine KW - orthosilicates KW - velocity KW - polymers KW - interstellar dust KW - chain silicates KW - experimental studies KW - Stardust Mission KW - trajectories KW - impacts KW - size KW - nesosilicates KW - cosmic dust KW - natural analogs KW - aerogel KW - orthopyroxene KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1696875570?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Stardust+Interstellar+Preliminary+Examination%3B+IX%2C+high-speed+interstellar+dust+analog+capture+in+Stardust+flight-spare+aerogel&rft.au=Postberg%2C+Frank%3BHillier%2C+John+K%3BArmes%2C+S+P%3BBugiel%2C+S%3BButterworth%2C+Anna+L%3BDupin%2C+D%3BFielding%2C+L+A%3BFujii%2C+S%3BGainsforth%2C+Zack%3BGruen%2C+Eberhard%3BLi%2C+Y+W%3BSrama%2C+Ralf%3BSterken%2C+Veerle+J%3BStodolna%2C+Julien%3BTrieloff%2C+Mario%3BWestphal%2C+Andrew+J%3BAchilles%2C+C%3BAllen%2C+Carlton%3BAnsari%2C+Asna%3BBajt%2C+Sasa%3BBassim%2C+Nabil%3BBastien%2C+Ron+K%3BBechtel%2C+Hans+A%3BBorg%2C+Janet%3BBrenker%2C+Frank+E%3BBridges%2C+John%3BBrownlee%2C+Donald+E%3BBurchell%2C+Mark%3BBurghammer%2C+Manfred%3BChangela%2C+Hitesh%3BCloetens%2C+Peter%3BDavis%2C+Andrew+M%3BDoll%2C+Ryan%3BFloss%2C+Christine%3BFlynn%2C+George+J%3BFrank%2C+David+R%3BHeck%2C+Philipp+R%3BHoppe%2C+Peter%3BHuss%2C+G%3BHuth%2C+Joachim%3BKearsley%2C+Anton%3BKing%2C+Ashley+J%3BLai%2C+Barry%3BLeitner%2C+Jan%3BLemelle%2C+Laurence%3BLeonard%2C+Ariel%3BLeroux%2C+Hugues%3BLettieri%2C+Robert%3BMarchant%2C+William%3BNittler%2C+Larry+R%3BOgliore%2C+Ryan%3BOng%2C+Wei+Ja%3BPrice%2C+Mark+C%3BSandford%2C+Scott+A%3BTresserras%2C+Juan-Angel+Sans%3BSchmitz%2C+Sylvia%3BSchoonjans%2C+Tom%3BSchreiber%2C+Kate%3BSilversmit%2C+Geert%3BSimionovici%2C+Alexandre+S%3BSole%2C+Vicente+A%3BStadermann%2C+Frank+J%3BStephan%2C+Thomas%3BStroud%2C+Rhonda%3BSutton%2C+Steven%3BTsou%2C+Peter%3BTsuchiyama%2C+Akira%3BTyliszczak%2C+Tolek%3BVekemans%2C+Bart%3BVincze%2C+Laszlo%3BZevin%2C+Daniel%3BZolensky%2C+Michael+E%3BAnonymous&rft.aulast=Postberg&rft.aufirst=Frank&rft.date=2014-09-01&rft.volume=49&rft.issue=9&rft.spage=1666&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fmaps.12173 L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2015-01-01 N1 - Number of references - 28 N1 - PubXState - AR N1 - Document feature - illus. incl. sketch map N1 - Last updated - 2015-11-19 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - acceleration; aerogel; chain silicates; cosmic dust; density; experimental studies; hypervelocity impacts; impacts; interstellar dust; laboratory studies; natural analogs; nesosilicates; olivine; olivine group; orthopyroxene; orthosilicates; particle tracks; polymers; pyroxene group; silicates; size; Stardust Interstellar Preliminary Examination; Stardust Mission; trajectories; velocity DO - http://dx.doi.org/10.1111/maps.12173 ER - TY - JOUR T1 - Stardust Interstellar Preliminary Examination; X, Impact speeds and directions of interstellar grains on the Stardust dust collector AN - 1696875169; 2015-068968 AB - On the basis of an interstellar dust model compatible with Ulysses and Galileo observations, we calculate and predict the trajectories of interstellar dust (ISD) in the solar system and the distribution of the impact speeds, directions, and flux of ISD particles on the Stardust Interstellar Dust Collector during the two collection periods of the mission. We find that the expected impact velocities are generally low ( 1, and that some of the particles will impact on the cometary side of the collector. If we assume astronomical silicates for particle material and a density of 2 g cm (super -3) , and use the Ulysses measurements and the ISD trajectory simulations, we conclude that the total number of (detectable) captured ISD particles may be on the order of 50. In companion papers in this volume, we report the discovery of three interstellar dust candidates in the Stardust aerogel tiles. The impact directions and speeds of these candidates are consistent with those calculated from our ISD propagation model, within the uncertainties of the model and of the observations. Abstract Copyright The Meteoritical Society, 2014. JF - Meteoritics & Planetary Science AU - Sterken, Veerle J AU - Westphal, Andrew J AU - Altobelli, Nicolas AU - Gruen, Eberhard AU - Hillier, Jon K AU - Postberg, Frank AU - Srama, Ralf AU - Allen, Carlton AU - Anderson, David AU - Ansari, Asna AU - Bajt, Sasa AU - Bastien, Ron S AU - Bassim, Nabil AU - Bechtel, Hans A AU - Borg, Janet AU - Brenker, Frank E AU - Bridges, John AU - Brownlee, Donald E AU - Burchell, Mark AU - Burghammer, Manfred AU - Butterworth, Anna L AU - Changela, Hitesh AU - Cloetens, Peter AU - Davis, Andrew M AU - Doll, Ryan AU - Floss, Christine AU - Flynn, George J AU - Frank, David R AU - Gainsforth, Zack AU - Heck, Philipp R AU - Hoppe, Peter AU - Hudson, Bruce AU - Huth, Joachim AU - Hvide, Brit AU - Kearsley, Anton AU - King, Ashley J AU - Lai, Barry AU - Leitner, Jan AU - Lemelle, Laurence AU - Leroux, Hugues AU - Leonard, Ariel AU - Lettieri, Robert AU - Marchant, William AU - Nittler, Larry R AU - Ogliore, Ryan AU - Ong, Wei Ja AU - Price, Mark C AU - Sandford, Scott A AU - Tresserras, Juan-Angel Sans AU - Schmitz, Sylvia AU - Schoonjans, Tom AU - Silversmit, Geert AU - Simionovici, Alexandre S AU - Sole, Vicente A AU - Stephan, Thomas AU - Stodolna, Julien AU - Stroud, Rhonda M AU - Sutton, Steven AU - Trieloff, Mario AU - Tsou, Peter AU - Tsuchiyama, Akira AU - Tyliszczak, Tolek AU - Vekemans, Bart AU - Vincze, Laszlo AU - Von Korff, Joshua AU - Wordsworth, Naomi AU - Zevin, Daniel AU - Zolensky, Michael E AU - Anonymous Y1 - 2014/09// PY - 2014 DA - September 2014 SP - 1680 EP - 1697 PB - Meteoritical Society, Fayetteville, AR VL - 49 IS - 9 SN - 1086-9379, 1086-9379 KW - solar system KW - density KW - Stardust Mission KW - orbits KW - trajectories KW - Lorentz force KW - impacts KW - simulation KW - models KW - cosmic dust KW - dynamics KW - Stardust Interstellar Preliminary Examination KW - solar radiation KW - velocity KW - aerogel KW - interstellar dust KW - uncertainty KW - particles KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1696875169?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Stardust+Interstellar+Preliminary+Examination%3B+X%2C+Impact+speeds+and+directions+of+interstellar+grains+on+the+Stardust+dust+collector&rft.au=Sterken%2C+Veerle+J%3BWestphal%2C+Andrew+J%3BAltobelli%2C+Nicolas%3BGruen%2C+Eberhard%3BHillier%2C+Jon+K%3BPostberg%2C+Frank%3BSrama%2C+Ralf%3BAllen%2C+Carlton%3BAnderson%2C+David%3BAnsari%2C+Asna%3BBajt%2C+Sasa%3BBastien%2C+Ron+S%3BBassim%2C+Nabil%3BBechtel%2C+Hans+A%3BBorg%2C+Janet%3BBrenker%2C+Frank+E%3BBridges%2C+John%3BBrownlee%2C+Donald+E%3BBurchell%2C+Mark%3BBurghammer%2C+Manfred%3BButterworth%2C+Anna+L%3BChangela%2C+Hitesh%3BCloetens%2C+Peter%3BDavis%2C+Andrew+M%3BDoll%2C+Ryan%3BFloss%2C+Christine%3BFlynn%2C+George+J%3BFrank%2C+David+R%3BGainsforth%2C+Zack%3BHeck%2C+Philipp+R%3BHoppe%2C+Peter%3BHudson%2C+Bruce%3BHuth%2C+Joachim%3BHvide%2C+Brit%3BKearsley%2C+Anton%3BKing%2C+Ashley+J%3BLai%2C+Barry%3BLeitner%2C+Jan%3BLemelle%2C+Laurence%3BLeroux%2C+Hugues%3BLeonard%2C+Ariel%3BLettieri%2C+Robert%3BMarchant%2C+William%3BNittler%2C+Larry+R%3BOgliore%2C+Ryan%3BOng%2C+Wei+Ja%3BPrice%2C+Mark+C%3BSandford%2C+Scott+A%3BTresserras%2C+Juan-Angel+Sans%3BSchmitz%2C+Sylvia%3BSchoonjans%2C+Tom%3BSilversmit%2C+Geert%3BSimionovici%2C+Alexandre+S%3BSole%2C+Vicente+A%3BStephan%2C+Thomas%3BStodolna%2C+Julien%3BStroud%2C+Rhonda+M%3BSutton%2C+Steven%3BTrieloff%2C+Mario%3BTsou%2C+Peter%3BTsuchiyama%2C+Akira%3BTyliszczak%2C+Tolek%3BVekemans%2C+Bart%3BVincze%2C+Laszlo%3BVon+Korff%2C+Joshua%3BWordsworth%2C+Naomi%3BZevin%2C+Daniel%3BZolensky%2C+Michael+E%3BAnonymous&rft.aulast=Sterken&rft.aufirst=Veerle&rft.date=2014-09-01&rft.volume=49&rft.issue=9&rft.spage=1680&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fmaps.12219 L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2015-01-01 N1 - Number of references - 38 N1 - PubXState - AR N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2015-10-15 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - aerogel; cosmic dust; density; dynamics; impacts; interstellar dust; Lorentz force; models; orbits; particles; simulation; solar radiation; solar system; Stardust Interstellar Preliminary Examination; Stardust Mission; trajectories; uncertainty; velocity DO - http://dx.doi.org/10.1111/maps.12219 ER - TY - JOUR T1 - Using satellite remote sensing and household survey data to assess human health and nutrition response to environmental change AN - 1680152542; 201517436 AB - Climate change and degradation of ecosystem services functioning may threaten the ability of current agricultural systems to keep up with demand for adequate and inexpensive food and for clean water, waste disposal and other broader ecosystem services. Human health is likely to be affected by changes occurring across multiple geographic and time scales. Impacts range from increasing transmissibility and the range of vectorborne diseases, such as malaria and yellow fever, to undermining nutrition through deleterious impacts on food production and concomitant increases in food prices. This paper uses case studies to describe methods that make use of satellite remote sensing and Demographic and Health Survey data to better understand individual-level human health and nutrition outcomes. By bringing these diverse datasets together, the connection between environmental change and human health outcomes can be described through new research and analysis. Adapted from the source document. JF - Population and Environment AU - Brown, Molly E AU - Grace, Kathryn AU - Shively, Gerald AU - Johnson, Kiersten B AU - Carroll, Mark AD - Biospheric Sciences Laboratory, Code 618, NASA Goddard Space Flight Center, Greenbelt, MD, 20771, USA molly.e.brown@nasa.gov Y1 - 2014/09// PY - 2014 DA - September 2014 SP - 48 EP - 72 PB - Springer, New York NY VL - 36 IS - 1 SN - 0199-0039, 0199-0039 KW - Agrarian Structures KW - Climate Change KW - Health Problems KW - Food Industry KW - Water Supply KW - Health KW - Illness KW - Environmental Factors KW - Nutrition KW - article KW - 2656: environmental interactions; environmental interactions UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1680152542?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Asocabs&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Population+and+Environment&rft.atitle=Using+satellite+remote+sensing+and+household+survey+data+to+assess+human+health+and+nutrition+response+to+environmental+change&rft.au=Brown%2C+Molly+E%3BGrace%2C+Kathryn%3BShively%2C+Gerald%3BJohnson%2C+Kiersten+B%3BCarroll%2C+Mark&rft.aulast=Brown&rft.aufirst=Molly&rft.date=2014-09-01&rft.volume=36&rft.issue=1&rft.spage=48&rft.isbn=&rft.btitle=&rft.title=Population+and+Environment&rft.issn=01990039&rft_id=info:doi/10.1007%2Fs11111-013-0201-0 LA - English DB - Sociological Abstracts N1 - Date revised - 2015-05-01 N1 - Number of references - 69 N1 - Last updated - 2016-09-28 N1 - CODEN - PENVDK N1 - SubjectsTermNotLitGenreText - Health Problems; Nutrition; Environmental Factors; Health; Water Supply; Food Industry; Illness; Agrarian Structures; Climate Change DO - http://dx.doi.org/10.1007/s11111-013-0201-0 ER - TY - JOUR T1 - The quest for regolithic howardites; Part 2, Surface origins highlighted by noble gases AN - 1664436100; 2015-023286 AB - We report noble gas data of helium (He), neon (Ne), argon (Ar), krypton (Kr) and xenon (Xe), cosmic ray exposure (CRE) ages and nominal gas retention (K-Ar, U-Th-He) ages for seven howardites (CRE 01400, EET 87513, EET 87518, EET 99400, GRO 95535, GRO 95602, SAN 03472), in continuing research to identify regolithic samples, and better understand the vestan regolith. In our previous work, we found little correlation between suggested regolith parameters of Ni > 300 mu g/g, Al (sub 2) O (sub 3) 8-9 wt% and eucrite/diogenite (E:D) ratio of 2:1 (Warren et al., 2009), and trapped solar wind (SW), fractionated solar wind (FSW) or planetary noble gas components (from impacted material) - noble gas indicators of a regolithic origin. Here, we have expanded our data set to include samples outside of these parameters to further explore composition, and the differences in Ni content as indicators for the presence of non-Vesta material. In addition, our sample set includes two potentially paired meteorites from the GRO suite. Finally, in our petrographic studies, the samples selected showed no evidence for carbonaceous chondrite fragments, which should reduce the effect of "contamination" by planetary noble gas components, and will allow us to better identify SW/FSW components, where present. Of the samples studied here, three howardites GRO 95535, GRO 95602 and EET 87513 show evidence for a regolithic origin, with both isotopic and element noble gas ratios clearly pointing to the presence of trapped components similar to SW/FSW or planetary. The two GRO howardites, GRO 95535 and GRO 95602, show similar noble gas ratios to our previously defined SW/FSW dominated regolithic group (LEW 85313 and MET 00423), suggesting a surface origin for these samples. However, interestingly, the GRO samples show vastly different cosmogenic noble gas abundances, and thus different CRE ages, which suggests that they are not paired. For howardite EET 87513, the data hint to the presence of CM-material, with a neon release pattern similar to our defined planetary/FSW dominated regolithic group (CM-rich samples PRA 04401, SCO 06040). Our petrological investigations found no evidence for CM fragments within EET 87513, though a single clast was reported previously (Buchanan et al., 1993). Aside from the Ne release pattern, the remaining noble gas data show more similarity with SW/FSW components. The remaining four howardites CRE 01400, EET 87518, EET 99400, and SAN 03472 and are dominated by cosmogenic noble gases, and show no evidence for a regolithic origin. Our data suggest that a CM-composition is likely present in all samples to some degree, but that this can be overprinted by SW components or cosmogenic components obtained in situ on the vestan surface or during transit to Earth respectively. The presence of CM material is an important parameter for understanding the evolution of Vesta's surface. While we have uncovered three further regolithic howardites ( approximately 13 regolithic total, of approximately 41 analysed), further noble gas analysis of HED meteorites is needed to not only determine regolithic origins, but to better characterise the abundance of carbonaceous chondrite material and its effect on the noble gas signatures of such samples. Abstract Copyright (2014) Elsevier, B.V. JF - Geochimica et Cosmochimica Acta AU - Cartwright, J A AU - Ott, U AU - Mittlefehldt, D W Y1 - 2014/09/01/ PY - 2014 DA - 2014 Sep 01 SP - 488 EP - 508 PB - Elsevier, New York, NY VL - 140 SN - 0016-7037, 0016-7037 KW - stony meteorites KW - isotopes KW - Elephant Moraine Meteorites KW - exposure age KW - (U-Th)/He KW - meteorites KW - radioactive isotopes KW - iron meteorites KW - howardite KW - dates KW - noble gases KW - neon KW - absolute age KW - helium KW - cosmic rays KW - Archean KW - chemical composition KW - EET 87513 KW - Precambrian KW - cosmochemistry KW - xenon KW - krypton KW - GRO 95535 KW - achondrites KW - Santa Clara Meteorite KW - argon KW - Antarctica KW - K/Ar KW - SAN 03472 KW - regolith KW - Grosvenor Mountains Meteorites KW - 05B:Petrology of meteorites and tektites KW - 03:Geochronology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1664436100?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=The+quest+for+regolithic+howardites%3B+Part+2%2C+Surface+origins+highlighted+by+noble+gases&rft.au=Cartwright%2C+J+A%3BOtt%2C+U%3BMittlefehldt%2C+D+W&rft.aulast=Cartwright&rft.aufirst=J&rft.date=2014-09-01&rft.volume=140&rft.issue=&rft.spage=488&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2014.05.033 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2015-01-01 N1 - Number of references - 118 N1 - PubXState - NY N1 - Document feature - illus. incl. 5 tables N1 - SuppNotes - Includes appendices N1 - Last updated - 2015-04-16 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - (U-Th)/He; absolute age; achondrites; Antarctica; Archean; argon; chemical composition; cosmic rays; cosmochemistry; dates; EET 87513; Elephant Moraine Meteorites; exposure age; GRO 95535; Grosvenor Mountains Meteorites; helium; howardite; iron meteorites; isotopes; K/Ar; krypton; meteorites; neon; noble gases; Precambrian; radioactive isotopes; regolith; SAN 03472; Santa Clara Meteorite; stony meteorites; xenon DO - http://dx.doi.org/10.1016/j.gca.2014.05.033 ER - TY - JOUR T1 - Accuracy assessment of global barotropic ocean tide models AN - 1664434613; 2015-023638 AB - The accuracy of state-of-the-art global barotropic tide models is assessed using bottom pressure data, coastal tide gauges, satellite altimetry, various geodetic data on Antarctic ice shelves, and independent tracked satellite orbit perturbations. Tide models under review include empirical, purely hydrodynamic ("forward"), and assimilative dynamical, i.e., constrained by observations. Ten dominant tidal constituents in the diurnal, semidiurnal, and quarter-diurnal bands are considered. Since the last major model comparison project in 1997, models have improved markedly, especially in shallow-water regions and also in the deep ocean. The root-sum-square differences between tide observations and the best models for eight major constituents are approximately 0.9, 5.0, and 6.5 cm for pelagic, shelf, and coastal conditions, respectively. Large intermodel discrepancies occur in high latitudes, but testing in those regions is impeded by the paucity of high-quality in situ tide records. Long-wavelength components of models tested by analyzing satellite laser ranging measurements suggest that several models are comparably accurate for use in precise orbit determination, but analyses of GRACE intersatellite ranging data show that all models are still imperfect on basin and subbasin scales, especially near Antarctica. For the M (sub 2) constituent, errors in purely hydrodynamic models are now almost comparable to the 1980-era Schwiderski empirical solution, indicating marked advancement in dynamical modeling. Assessing model accuracy using tidal currents remains problematic owing to uncertainties in in situ current meter estimates and the inability to isolate the barotropic mode. Velocity tests against both acoustic tomography and current meters do confirm that assimilative models perform better than purely hydrodynamic models. Abstract Copyright (2014), American Geophysical Union. All Rights Reserved. JF - Reviews of Geophysics AU - Stammer, D AU - Ray, R D AU - Andersen, O B AU - Arbic, B K AU - Bosch, W AU - Carrere, L AU - Cheng, Y AU - Chinn, D S AU - Dushaw, B D AU - Egbert, G D AU - Erofeeva, S Y AU - Fok, H S AU - Green, J A M AU - Griffiths, S AU - King, M A AU - Lapin, V AU - Lemoine, F G AU - Luthcke, S B AU - Lyard, F AU - Morison, J AU - Mueller, M AU - Padman, L AU - Richman, J G AU - Shriver, J F AU - Shum, C K AU - Taguchi, E AU - Yi, Y Y1 - 2014/09// PY - 2014 DA - September 2014 SP - 243 EP - 282 PB - American Geophysical Union, Washington, DC VL - 52 IS - 3 SN - 8755-1209, 8755-1209 KW - ocean circulation KW - global KW - altimetry KW - geodetic networks KW - geodesy KW - satellite methods KW - tides KW - Antarctic ice sheet KW - Antarctica KW - hydrodynamics KW - atmospheric pressure KW - world ocean KW - remote sensing KW - 20:Applied geophysics KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1664434613?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Reviews+of+Geophysics&rft.atitle=Accuracy+assessment+of+global+barotropic+ocean+tide+models&rft.au=Stammer%2C+D%3BRay%2C+R+D%3BAndersen%2C+O+B%3BArbic%2C+B+K%3BBosch%2C+W%3BCarrere%2C+L%3BCheng%2C+Y%3BChinn%2C+D+S%3BDushaw%2C+B+D%3BEgbert%2C+G+D%3BErofeeva%2C+S+Y%3BFok%2C+H+S%3BGreen%2C+J+A+M%3BGriffiths%2C+S%3BKing%2C+M+A%3BLapin%2C+V%3BLemoine%2C+F+G%3BLuthcke%2C+S+B%3BLyard%2C+F%3BMorison%2C+J%3BMueller%2C+M%3BPadman%2C+L%3BRichman%2C+J+G%3BShriver%2C+J+F%3BShum%2C+C+K%3BTaguchi%2C+E%3BYi%2C+Y&rft.aulast=Stammer&rft.aufirst=D&rft.date=2014-09-01&rft.volume=52&rft.issue=3&rft.spage=243&rft.isbn=&rft.btitle=&rft.title=Reviews+of+Geophysics&rft.issn=87551209&rft_id=info:doi/10.1002%2F2014RG000450 L2 - http://www.agu.org/journals/rg/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2015-01-01 N1 - Number of references - 124 N1 - PubXState - DC N1 - Document feature - illus. incl. 15 tables N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - altimetry; Antarctic ice sheet; Antarctica; atmospheric pressure; geodesy; geodetic networks; global; hydrodynamics; ocean circulation; remote sensing; satellite methods; tides; world ocean DO - http://dx.doi.org/10.1002/2014RG000450 ER - TY - JOUR T1 - Arctic sea ice in transformation; a review of recent observed changes and impacts on biology and human activity AN - 1664434409; 2015-023636 AB - Sea ice in the Arctic is one of the most rapidly changing components of the global climate system. Over the past few decades, summer areal extent has declined over 30%, and all months show statistically significant declining trends. New satellite missions and techniques have greatly expanded information on sea ice thickness, but many uncertainties remain in the satellite data and long-term records are sparse. However, thickness observations and other satellite-derived data indicate a 40% decline in thickness, due in large part to the loss of thicker, older ice cover. The changes in sea ice are happening faster than models have projected. With continued increasing temperatures, summer ice-free conditions are likely sometime in the coming decades, though there are substantial uncertainties in the exact timing and high interannual variability will remain as sea ice decreases. The changes in Arctic sea ice are already having an impact on flora and fauna in the Arctic. Some species will face increasing challenges in the future, while new habitat will open up for other species. The changes are also affecting people living and working in the Arctic. Native communities are facing challenges to their traditional ways of life, while new opportunities open for shipping, fishing, and natural resource extraction. Significant progress has been made in recent years in understanding of Arctic sea ice and its role in climate, the ecosystem, and human activities. However, significant challenges remain in furthering the knowledge of the processes, impacts, and future evolution of the system. Abstract Copyright (2014), American Geophysical Union. All Rights Reserved. JF - Reviews of Geophysics AU - Meier, Walter N AU - Hovelsrud, Greta K AU - Oort, Bob E H AU - Key, Jeffrey R AU - Kovacs, Kit M AU - Michel, Christine AU - Haas, Christian AU - Granskog, Mats A AU - Gerland, Sebastian AU - Perovich (CRREL), Donald K AU - Makshtas, Alexander AU - Reist, James D Y1 - 2014/09// PY - 2014 DA - September 2014 SP - 185 EP - 217 PB - American Geophysical Union, Washington, DC VL - 52 IS - 3 SN - 8755-1209, 8755-1209 KW - human activity KW - sea ice KW - ice cover KW - global change KW - ecosystems KW - environmental effects KW - climate change KW - observations KW - ice KW - Arctic Ocean KW - ecology KW - biology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1664434409?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Reviews+of+Geophysics&rft.atitle=Arctic+sea+ice+in+transformation%3B+a+review+of+recent+observed+changes+and+impacts+on+biology+and+human+activity&rft.au=Meier%2C+Walter+N%3BHovelsrud%2C+Greta+K%3BOort%2C+Bob+E+H%3BKey%2C+Jeffrey+R%3BKovacs%2C+Kit+M%3BMichel%2C+Christine%3BHaas%2C+Christian%3BGranskog%2C+Mats+A%3BGerland%2C+Sebastian%3BPerovich+%28CRREL%29%2C+Donald+K%3BMakshtas%2C+Alexander%3BReist%2C+James+D&rft.aulast=Meier&rft.aufirst=Walter&rft.date=2014-09-01&rft.volume=52&rft.issue=3&rft.spage=185&rft.isbn=&rft.btitle=&rft.title=Reviews+of+Geophysics&rft.issn=87551209&rft_id=info:doi/10.1002%2F2013RG000431 L2 - http://www.agu.org/journals/rg/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2015-01-01 N1 - Number of references - 278 N1 - PubXState - DC N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Arctic Ocean; biology; climate change; ecology; ecosystems; environmental effects; global change; human activity; ice; ice cover; observations; sea ice DO - http://dx.doi.org/10.1002/2013RG000431 ER - TY - JOUR T1 - The landscape of Titan as witness to its climate evolution AN - 1645572469; 2015-004229 AB - We investigated the range of Titan climate evolution hypotheses regulated by the role, sources, and availability of methane. We analyzed all available image data (principally synthetic aperture radar (SAR)) of Titan's landscape through the T-86 encounter, starting with focused examinations of terrains that carry the markers of climate evolution. Traditional geologic and geomorphic landscape analysis was used to perform morphometric characterization, establish time-stratigraphic relationships, and interpret local and regional geologic process-oriented evolutionary histories. We then assayed the distribution of terrains we identified with respect to both their latitudinal and altimetric occurrence. Our analysis of the terrain types and distributions was used to evaluate and rank the various climate evolution scenarios. We favor progressive hypotheses, which include a relatively brief period in which precipitation was able to affect geomorphic change in low latitudes at scales perceivable in SAR data, with subsequent gradual decline of precipitation intensity coupled with an increasing poleward restriction. Abstract Copyright (2014), . American Geophysical Union. All Rights Reserved. JF - Journal of Geophysical Research: Planets AU - Moore, Jeffrey M AU - Howard, Alan D AU - Morgan, Alexander M Y1 - 2014/09// PY - 2014 DA - September 2014 SP - 2060 EP - 2077 PB - Wiley-Blackwell for American Geophysical Union, Washington, DC VL - 119 IS - 9 SN - 2169-9097, 2169-9097 KW - icy satellites KW - aliphatic hydrocarbons KW - landforms KW - atmospheric precipitation KW - paleoclimatology KW - climate change KW - nitrogen KW - Cassini-Huygens Mission KW - transport KW - SAR KW - Titan Satellite KW - satellites KW - solar system KW - methane KW - elevation KW - atmosphere KW - morphometry KW - altimetry KW - alkanes KW - organic compounds KW - terrains KW - steady-state processes KW - lacustrine environment KW - hydrocarbons KW - fluvial features KW - fluviolacustrine environment KW - latitude KW - geomorphology KW - wind transport KW - landscapes KW - fluvial environment KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1645572469?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research%3A+Planets&rft.atitle=The+landscape+of+Titan+as+witness+to+its+climate+evolution&rft.au=Moore%2C+Jeffrey+M%3BHoward%2C+Alan+D%3BMorgan%2C+Alexander+M&rft.aulast=Moore&rft.aufirst=Jeffrey&rft.date=2014-09-01&rft.volume=119&rft.issue=9&rft.spage=2060&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Planets&rft.issn=21699097&rft_id=info:doi/10.1002%2F2014JE004608 L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%292169-9100 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2015-01-01 N1 - Number of references - 98 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2015-02-19 N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; altimetry; atmosphere; atmospheric precipitation; Cassini-Huygens Mission; climate change; elevation; fluvial environment; fluvial features; fluviolacustrine environment; geomorphology; hydrocarbons; icy satellites; lacustrine environment; landforms; landscapes; latitude; methane; morphometry; nitrogen; organic compounds; paleoclimatology; SAR; satellites; solar system; steady-state processes; terrains; Titan Satellite; transport; wind transport DO - http://dx.doi.org/10.1002/2014JE004608 ER - TY - JOUR T1 - Mars Science Laboratory relative humidity observations; initial results AN - 1645571254; 2015-004232 AB - The Mars Science Laboratory (MSL) made a successful landing at Gale crater early August 2012. MSL has an environmental instrument package called the Rover Environmental Monitoring Station (REMS) as a part of its scientific payload. REMS comprises instrumentation for the observation of atmospheric pressure, temperature of the air, ground temperature, wind speed and direction, relative humidity (REMS-H), and UV measurements. We concentrate on describing the REMS-H measurement performance and initial observations during the first 100 MSL sols as well as constraining the REMS-H results by comparing them with earlier observations and modeling results. The REMS-H device is based on polymeric capacitive humidity sensors developed by Vaisala Inc., and it makes use of transducer electronics section placed in the vicinity of the three humidity sensor heads. The humidity device is mounted on the REMS boom providing ventilation with the ambient atmosphere through a filter protecting the device from airborne dust. The final relative humidity results appear to be convincing and are aligned with earlier indirect observations of the total atmospheric precipitable water content. The water mixing ratio in the atmospheric surface layer appears to vary between 30 and 75 ppm. When assuming uniform mixing, the precipitable water content of the atmosphere is ranging from a few to six precipitable micrometers. Abstract Copyright (2014), . American Geophysical Union. All Rights Reserved. JF - Journal of Geophysical Research: Planets AU - Harri, Ari-Matti AU - Genzer, M AU - Kemppinen, O AU - Gomez-Elvira, J AU - Haberle, R AU - Polkko, J AU - Savijarvi, H AU - Renno, N AU - Rodriguez-Manfredi, J A AU - Schmidt, W AU - Richardson, M AU - Siili, T AU - Paton, M AU - de la Torre-Juarez, M AU - Makinen, T AU - Newman, C AU - Rafkin, S AU - Mischna, M AU - Merikallio, S AU - Haukka, H AU - Martin-Torres, J AU - Komu, M AU - Zorzano, M P AU - Peinado, V AU - Vazquez, L AU - Urqui, R Y1 - 2014/09// PY - 2014 DA - September 2014 SP - 2132 EP - 2147 PB - Wiley-Blackwell for American Geophysical Union, Washington, DC VL - 119 IS - 9 SN - 2169-9097, 2169-9097 KW - water KW - atmosphere KW - Mars KW - temperature KW - Gale Crater KW - terrestrial planets KW - planets KW - relative humidity KW - humidity KW - Rover Environmental Monitoring Station KW - mixing KW - Mars Science Laboratory KW - atmospheric pressure KW - water content KW - winds KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1645571254?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research%3A+Planets&rft.atitle=Mars+Science+Laboratory+relative+humidity+observations%3B+initial+results&rft.au=Harri%2C+Ari-Matti%3BGenzer%2C+M%3BKemppinen%2C+O%3BGomez-Elvira%2C+J%3BHaberle%2C+R%3BPolkko%2C+J%3BSavijarvi%2C+H%3BRenno%2C+N%3BRodriguez-Manfredi%2C+J+A%3BSchmidt%2C+W%3BRichardson%2C+M%3BSiili%2C+T%3BPaton%2C+M%3Bde+la+Torre-Juarez%2C+M%3BMakinen%2C+T%3BNewman%2C+C%3BRafkin%2C+S%3BMischna%2C+M%3BMerikallio%2C+S%3BHaukka%2C+H%3BMartin-Torres%2C+J%3BKomu%2C+M%3BZorzano%2C+M+P%3BPeinado%2C+V%3BVazquez%2C+L%3BUrqui%2C+R&rft.aulast=Harri&rft.aufirst=Ari-Matti&rft.date=2014-09-01&rft.volume=119&rft.issue=9&rft.spage=2132&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Planets&rft.issn=21699097&rft_id=info:doi/10.1002%2F2013JE004514 L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%292169-9100 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2015-01-01 N1 - Number of references - 47 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2015-02-19 N1 - SubjectsTermNotLitGenreText - atmosphere; atmospheric pressure; Gale Crater; humidity; Mars; Mars Science Laboratory; mixing; planets; relative humidity; Rover Environmental Monitoring Station; temperature; terrestrial planets; water; water content; winds DO - http://dx.doi.org/10.1002/2013JE004514 ER - TY - JOUR T1 - Variability of Regional TOA Flux Diurnal Cycle Composites at the Monthly Time Scale AN - 1642331909; 20792004 AB - Diurnal variability is a fundamental component of Earths climate system. Clouds, temperature, and precipitation exhibit robust responses to the daily cycle of solar insolation. Recent work indicates significant variability in the top-of-the-atmosphere (TOA) flux diurnal cycle in the tropics associated with monthly changes in the cloud diurnal cycle evolution. It has been proposed that the observed month-to-month variations in the TOA flux diurnal cycle are caused by anomalies in the atmospheric dynamic and thermodynamic state. This hypothesis is tested using a regression analysis to quantify the relationship between diurnal cycle shape and the atmospheric dynamic and thermodynamic state. TOA radiative fluxes are obtained from Clouds and the Earths Radiant Energy System (CERES) Edition 3 data and the atmospheric dynamic and thermodynamic state is taken from the European Centre for Medium-Range Weather Forecasts (ECMWF) Interim Re-Analysis. Four regions representing traditional diurnal cycle regimes are used in this analysis: North Africa (land nonconvective), central South America (land convective), Peru marine stratocumulus (ocean nonconvective), and Indian Ocean (ocean convective). The results show a statistically significant diurnal cycle shape change and cloud response related to monthly atmospheric state anomalies. Using the single-variable regression relationships to predict monthly diurnal cycle variability shows improvements of 1%18% over assuming a climatological diurnal cycle shape; the most significant gains are found in North Africa. The proposed hypothesis, therefore, contributes to diurnal cycle variability explaining at least 10%-20% of the total monthly-mean diurnal cycle variability. JF - Journal of the Atmospheric Sciences AU - Taylor, Patrick C AD - Climate Science Branch, NASA Langley Research Center, Hampton, Virginia Y1 - 2014/09// PY - 2014 DA - September 2014 SP - 3484 EP - 3498 PB - American Meteorological Society, 45 Beacon St. Boston MA 02108-3693 United States VL - 71 IS - 9 SN - 0022-4928, 0022-4928 KW - Advanced Polymers Abstracts (EP); Environmental Engineering Abstracts (EN); Composites Industry Abstracts (ED); Engineered Materials Abstracts, Ceramics (EC); Aerospace & High Technology Database (AH) KW - Clouds KW - Thermodynamics KW - Land KW - Flux KW - Oceans KW - Dynamical systems KW - Atmospherics KW - Dynamics KW - Marine UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1642331909?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+Atmospheric+Sciences&rft.atitle=Variability+of+Regional+TOA+Flux+Diurnal+Cycle+Composites+at+the+Monthly+Time+Scale&rft.au=Taylor%2C+Patrick+C&rft.aulast=Taylor&rft.aufirst=Patrick&rft.date=2014-09-01&rft.volume=71&rft.issue=9&rft.spage=3484&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+Atmospheric+Sciences&rft.issn=00224928&rft_id=info:doi/10.1175%2FJAS-D-13-0336.1 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-11-01 N1 - Number of references - 41 N1 - Last updated - 2016-06-30 N1 - SubjectsTermNotLitGenreText - Marine DO - http://dx.doi.org/10.1175/JAS-D-13-0336.1 ER - TY - JOUR T1 - Decadal trends in global pelagic ocean chlorophyll; a new assessment integrating multiple satellites, in situ data, and models AN - 1637541961; 2014-102285 AB - Quantifying change in ocean biology using satellites is a major scientific objective. We document trends globally for the period 1998-2012 by integrating three diverse methodologies: ocean color data from multiple satellites, bias correction methods based on in situ data, and data assimilation to provide a consistent and complete global representation free of sampling biases. The results indicated no significant trend in global pelagic ocean chlorophyll over the 15 year data record. These results were consistent with previous findings that were based on the first 6 years and first 10 years of the SeaWiFS mission. However, all of the Northern Hemisphere basins (north of 10 degrees latitude), as well as the Equatorial Indian basin, exhibited significant declines in chlorophyll. Trend maps showed the local trends and their change in percent per year. These trend maps were compared with several other previous efforts using only a single sensor (SeaWiFS) and more limited time series, showing remarkable consistency. These results suggested the present effort provides a path forward to quantifying global ocean trends using multiple satellite missions, which is essential if we are to understand the state, variability, and possible changes in the global oceans over longer time scales. Abstract Copyright (2014), . The Authors. JF - Journal of Geophysical Research: Oceans AU - Gregg, Watson W AU - Rousseaux, Cecile S Y1 - 2014/09// PY - 2014 DA - September 2014 SP - 5921 EP - 5933 PB - Wiley-Blackwell for American Geophysical Union, Washington, DC VL - 119 IS - 9 SN - 2169-9275, 2169-9275 KW - ocean circulation KW - numerical models KW - in situ KW - time series analysis KW - pigments KW - pelagic environment KW - statistical analysis KW - SeaWiFS KW - satellite methods KW - chlorophyll KW - nutrients KW - organic compounds KW - ecology KW - porphyrins KW - world ocean KW - remote sensing KW - productivity KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1637541961?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research%3A+Oceans&rft.atitle=Decadal+trends+in+global+pelagic+ocean+chlorophyll%3B+a+new+assessment+integrating+multiple+satellites%2C+in+situ+data%2C+and+models&rft.au=Gregg%2C+Watson+W%3BRousseaux%2C+Cecile+S&rft.aulast=Gregg&rft.aufirst=Watson&rft.date=2014-09-01&rft.volume=119&rft.issue=9&rft.spage=5921&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Oceans&rft.issn=21699275&rft_id=info:doi/10.1002%2F2014JC010158 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2014-01-01 N1 - Number of references - 40 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2015-02-19 N1 - SubjectsTermNotLitGenreText - chlorophyll; ecology; in situ; numerical models; nutrients; ocean circulation; organic compounds; pelagic environment; pigments; porphyrins; productivity; remote sensing; satellite methods; SeaWiFS; statistical analysis; time series analysis; world ocean DO - http://dx.doi.org/10.1002/2014JC010158 ER - TY - JOUR T1 - The effects of parent-body hydrothermal heating on amino acid abundances in CI-like chondrites AN - 1629943623; 2014-094191 JF - Polar Science AU - Burton, Aaron S AU - Grunsfeld, Sarah AU - Elsila, Jamie E AU - Glavin, Daniel P AU - Dworkin, Jason P Y1 - 2014/09// PY - 2014 DA - September 2014 SP - 255 EP - 263 PB - Elsevier for National Institute of Polar Research, Japan, Tokyo VL - 8 IS - 3 SN - 1873-9652, 1873-9652 KW - CI chondrites KW - stony meteorites KW - Orgueil Meteorite KW - parent bodies KW - carbonaceous chondrites KW - aqueous solutions KW - Y 980115 KW - temperature KW - meteorites KW - organic compounds KW - organic acids KW - reagents KW - amino acids KW - chondrites KW - chemical composition KW - Y 86029 KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1629943623?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Polar+Science&rft.atitle=The+effects+of+parent-body+hydrothermal+heating+on+amino+acid+abundances+in+CI-like+chondrites&rft.au=Burton%2C+Aaron+S%3BGrunsfeld%2C+Sarah%3BElsila%2C+Jamie+E%3BGlavin%2C+Daniel+P%3BDworkin%2C+Jason+P&rft.aulast=Burton&rft.aufirst=Aaron&rft.date=2014-09-01&rft.volume=8&rft.issue=3&rft.spage=255&rft.isbn=&rft.btitle=&rft.title=Polar+Science&rft.issn=18739652&rft_id=info:doi/10.1016%2Fj.polar.2014.05.002 L2 - http://www.sciencedirect.com/science/journal/18739652 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Number of references - 55 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2014-12-04 N1 - SubjectsTermNotLitGenreText - amino acids; aqueous solutions; carbonaceous chondrites; chemical composition; chondrites; CI chondrites; meteorites; organic acids; organic compounds; Orgueil Meteorite; parent bodies; reagents; stony meteorites; temperature; Y 86029; Y 980115 DO - http://dx.doi.org/10.1016/j.polar.2014.05.002 ER - TY - JOUR T1 - Selection of DNA aptamers against uropathogenic Escherichia coli NSM59 by quantitative PCR controlled Cell-SELEX AN - 1627969140; 20958696 AB - In order to better control nosocomial infections, and facilitate the most prudent and effective use of antibiotics, improved strategies for the rapid detection and identification of problematic bacterial pathogens are required. DNA aptamers have much potential in the development of diagnostic assays and biosensors to address this important healthcare need, but further development of aptamers targeting common pathogens, and the strategies used to obtain specific aptamers are required. Here we demonstrate the application of a quantitative PCR (qPCR) controlled Cell-SELEX process, coupled with downstream secondary-conformation-based aptamer profiling. We used this approach to identify and select DNA aptamers targeted against uropathogenic Escherichia coli, for which specific aptamers are currently lacking, despite the prevalence of these infections. The use of qPCR to monitor the Cell-SELEX process permitted a minimal number of SELEX cycles to be employed, as well as the cycle-by-cycle optimisation of standard PCR amplification of recovered aptamer pools at each round. Identification of useful aptamer candidates was also facilitated by profiling of secondary conformations and selection based on putative aptamer secondary structure. One aptamer selected this way (designated EcA5-27), displaying a guanine-quadruplex sequence motif, was shown to have high affinity and specificity for target cells, and the potential to discriminate between distinct strains of E. coli, highlighting the possibility for development of aptamers selectively recognising pathogenic strains. Overall, the identified aptamers hold much potential for the development of rapid diagnostic assays for nosocomial urinary tract infections caused by E. coli. JF - Journal of Microbiological Methods AU - Savory, Nasa AU - Nzakizwanayo, Jonathan AU - Abe, Koichi AU - Yoshida, Wataru AU - Ferri, Stefano AU - Dedi, Cinzia AU - Jones, Brian V AU - Ikebukuro, Kazunori Y1 - 2014/09// PY - 2014 DA - September 2014 SP - 94 EP - 100 PB - Elsevier B.V., P.O. Box 211 Amsterdam 1000 AE Netherlands VL - 104 SN - 0167-7012, 0167-7012 KW - Biotechnology and Bioengineering Abstracts; Microbiology Abstracts B: Bacteriology; Biochemistry Abstracts 2: Nucleic Acids; Microbiology Abstracts A: Industrial & Applied Microbiology KW - Aptamers KW - Cell-SELEX KW - Escherichia coli KW - Nosocomial infections KW - Urinary tract infections KW - Secondary structure KW - Antibiotics KW - Pathogens KW - Urinary tract KW - Biosensors KW - Protein structure KW - Nosocomial infection KW - Polymerase chain reaction KW - Hospitals KW - Conformation KW - W 30955:Biosensors KW - N 14810:Methods KW - A 01300:Methods KW - J 02300:Methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1627969140?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Microbiological+Methods&rft.atitle=Selection+of+DNA+aptamers+against+uropathogenic+Escherichia+coli+NSM59+by+quantitative+PCR+controlled+Cell-SELEX&rft.au=Savory%2C+Nasa%3BNzakizwanayo%2C+Jonathan%3BAbe%2C+Koichi%3BYoshida%2C+Wataru%3BFerri%2C+Stefano%3BDedi%2C+Cinzia%3BJones%2C+Brian+V%3BIkebukuro%2C+Kazunori&rft.aulast=Savory&rft.aufirst=Nasa&rft.date=2014-09-01&rft.volume=104&rft.issue=&rft.spage=94&rft.isbn=&rft.btitle=&rft.title=Journal+of+Microbiological+Methods&rft.issn=01677012&rft_id=info:doi/10.1016%2Fj.mimet.2014.06.016 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-11-01 N1 - Last updated - 2016-08-03 N1 - SubjectsTermNotLitGenreText - Protein structure; Biosensors; Aptamers; Secondary structure; Nosocomial infection; Polymerase chain reaction; Antibiotics; Urinary tract; Pathogens; Conformation; Hospitals; Escherichia coli DO - http://dx.doi.org/10.1016/j.mimet.2014.06.016 ER - TY - JOUR T1 - Label-free detection of C-reactive protein using a carbon nanofiber based biosensor AN - 1627956698; 20919268 AB - We report the sensitive detection of C-reactive protein (CRP), a biomarker for cardiac disease, using a carbon nanofiber based biosensor platform. Vertically aligned carbon nanofibers were grown using plasma enhanced chemical vapor deposition to fabricate nanoelectrode arrays in a 33 configuration. Cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) were used for the CRP detection. The CV responses show a 25% reduction in redox current upon the immobilization of anti-CRP on the electrode where as a 30% increase in charge transfer resistance is seen from EIS. Further reduction in redox current and increase in charge transfer resistance result from binding of CRP on anti-CRP immobilized surface, proportional to the concentration of the CRP target. The detection limit of the sensor is found to be ~90pM or ~11ng/ml, which is in the clinically relevant range. Control tests using non-specific myoglobin antigen confirmed the specificity of the present approach. JF - Biosensors and Bioelectronics AU - Gupta, Rakesh K AU - Periyakaruppan, Adaikkappan AU - Meyyappan, M AU - Koehne, Jessica E AD - NASA Ames Research Center, Moffett Field, CA 94035, USA Y1 - 2014/09// PY - 2014 DA - Sep 2014 SP - 112 EP - 119 PB - Elsevier B.V., 660 White Plains Rd. Tarrytown NY 10591-5153 United States VL - 59 SN - 0956-5663, 0956-5663 KW - Biotechnology and Bioengineering Abstracts KW - Biosensors KW - Carbon nanofibers KW - C-reactive protein KW - Nanoelectrode array KW - Electrical impedance spectroscopy etc. KW - Vapors KW - Carbon KW - Electrodes KW - myoglobin KW - Spectroscopy KW - biomarkers KW - Immobilization KW - Heart diseases KW - W 30955:Biosensors UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1627956698?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biosensors+and+Bioelectronics&rft.atitle=Label-free+detection+of+C-reactive+protein+using+a+carbon+nanofiber+based+biosensor&rft.au=Gupta%2C+Rakesh+K%3BPeriyakaruppan%2C+Adaikkappan%3BMeyyappan%2C+M%3BKoehne%2C+Jessica+E&rft.aulast=Gupta&rft.aufirst=Rakesh&rft.date=2014-09-01&rft.volume=59&rft.issue=&rft.spage=112&rft.isbn=&rft.btitle=&rft.title=Biosensors+and+Bioelectronics&rft.issn=09565663&rft_id=info:doi/10.1016%2Fj.bios.2014.03.027 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-11-01 N1 - Last updated - 2015-03-20 N1 - SubjectsTermNotLitGenreText - Biosensors; Vapors; Carbon; Electrodes; myoglobin; Spectroscopy; biomarkers; Immobilization; Heart diseases; C-reactive protein DO - http://dx.doi.org/10.1016/j.bios.2014.03.027 ER - TY - JOUR T1 - An estimate of the dust pickup current at Enceladus AN - 1623261089; 2014-089016 AB - We demonstrate that the acceleration of submicron dust originating at Enceladus by a reduced co-rotating E-field is capable of creating a dust pickup current perpendicular to the magnetic field with values ranging from 3 to 15 kA (depending upon the effective grain charge). Such a current represents a new contribution to the total pickup current in the region. As such, we suggest that dust pickup currents, along with ion and electron pickup currents, are all active within the plume. JF - Icarus AU - Farrell, William M AU - Wahlund, J E AU - Morooka, M AU - Gurnett, D A AU - Kurth, R J AU - MacDowall, R J Y1 - 2014/09/01/ PY - 2014 DA - 2014 Sep 01 SP - 217 EP - 221 PB - Elsevier, New York, NY VL - 239 SN - 0019-1035, 0019-1035 KW - icy satellites KW - plumes KW - cosmic dust KW - Cassini-Huygens Mission KW - electrical field KW - Enceladus Satellite KW - satellites KW - ions KW - interplanetary dust KW - size KW - electrons KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1623261089?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Icarus&rft.atitle=An+estimate+of+the+dust+pickup+current+at+Enceladus&rft.au=Farrell%2C+William+M%3BWahlund%2C+J+E%3BMorooka%2C+M%3BGurnett%2C+D+A%3BKurth%2C+R+J%3BMacDowall%2C+R+J&rft.aulast=Farrell&rft.aufirst=William&rft.date=2014-09-01&rft.volume=239&rft.issue=&rft.spage=217&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2014.05.034 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Number of references - 28 N1 - PubXState - NY N1 - Document feature - illus. N1 - Last updated - 2014-11-13 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - Cassini-Huygens Mission; cosmic dust; electrical field; electrons; Enceladus Satellite; icy satellites; interplanetary dust; ions; plumes; satellites; size DO - http://dx.doi.org/10.1016/j.icarus.2014.05.034 ER - TY - JOUR T1 - The thermal expansion of particles and their secular orbital evolution as they circle a planet AN - 1623256820; 2014-089009 AB - The thermal expansion and contraction of particles orbiting a planet can cause secular orbit evolution. This effect, called here the thermal expansion effect, depends on particles entering and exiting the shadow of the body they orbit. A particle cools off in the shadow and heats up again in the sunshine, suffering thermal contraction and expansion. The changing cross-section that the particle presents to solar radiation pressure, plus a time lag due to thermal inertia, lead to a net along-track force. The effect causes outward drift for rocky particles in circular orbits. For particles in the size range approximately 0.002-0.02 m orbiting the inner planets, particle orbits can outwardly evolve at the rate of approximately 0.1R (sub Plan) per million years for Mars to approximately 1R (sub Plan) per million years for Mercury for distances approximately 2R (sub Plan) from the body, where R (sub Plan) is the planet's radius. Poynting-Robertson dominates thermal expansion beyond a few RPlan for the inner planets. Hence there are distances from a planet where the effects balance, depending on particle size. Orbits evolving outward from the thermal expansion effect would stop there, as well as those inwardly evolving from Poynting-Robertson. Thus particles would accumulate in these places, assuming the absence of other forces. Mars appears to be the best candidate for the operation of the thermal expansion effect. Particles in the size range considered here and orbiting in the Phobos-Deimos region would tend to be collected by the moons, sweeping the particles up and perhaps helping keep the region free of dust. The thermal expansion effect is overwhelmed by Poynting-Robertson for rocky particles orbiting Jupiter and Saturn and thus is unimportant; these planets are not considered here. For particles orbiting small asteroids, the thermal expansion effect is much larger than the Poynting-Robertson effect, but both are overwhelmed by ordinary solar radiation pressure, which increases orbital eccentricities rapidly. Meteoroids in eccentric orbits about the Sun also suffer the thermal expansion effect, but with only approximately 0.0003e (super 2) AU change in semimajor axis over a million years for a 2 m meteoroid orbiting between Mercury and Earth. JF - Icarus AU - Rubincam, David Parry Y1 - 2014/09/01/ PY - 2014 DA - 2014 Sep 01 SP - 96 EP - 104 PB - Elsevier, New York, NY VL - 239 SN - 0019-1035, 0019-1035 KW - thermal inertia KW - asteroids KW - near-Earth asteroids KW - orbits KW - Jupiter KW - Mars KW - meteoroids KW - interplanetary dust KW - giant planets KW - eccentricity KW - Saturn KW - Mercury Planet KW - cooling KW - Poynting-Robertson effect KW - outer planets KW - satellites KW - Deimos Satellite KW - Phobos Satellite KW - near-Earth objects KW - Moon KW - secular variations KW - thermal expansion KW - size KW - terrestrial planets KW - planets KW - cosmic dust KW - contraction KW - solar radiation KW - heating KW - particles KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1623256820?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Icarus&rft.atitle=The+thermal+expansion+of+particles+and+their+secular+orbital+evolution+as+they+circle+a+planet&rft.au=Rubincam%2C+David+Parry&rft.aulast=Rubincam&rft.aufirst=David&rft.date=2014-09-01&rft.volume=239&rft.issue=&rft.spage=96&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2014.05.025 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Number of references - 29 N1 - PubXState - NY N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2014-11-13 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - asteroids; contraction; cooling; cosmic dust; Deimos Satellite; eccentricity; giant planets; heating; interplanetary dust; Jupiter; Mars; Mercury Planet; meteoroids; Moon; near-Earth asteroids; near-Earth objects; orbits; outer planets; particles; Phobos Satellite; planets; Poynting-Robertson effect; satellites; Saturn; secular variations; size; solar radiation; terrestrial planets; thermal expansion; thermal inertia DO - http://dx.doi.org/10.1016/j.icarus.2014.05.025 ER - TY - JOUR T1 - Global distribution of lunar impact melt flows AN - 1623256790; 2014-089010 AB - In this study, we analyzed the distribution and properties of 146 craters with impact melt deposits exterior to their rims. Many of these craters were only recently discovered due to their unusual radar properties in the near-global Mini-RF data set. We find that most craters with exterior deposits of impact melt are small, < or =20 km, and that the smallest craters have the longest melt flows relative to their size. In addition, exterior deposits of impact melt are more common in the highlands than the mare. This may be the result of differing target properties in the highlands and mare, the difference in titanium content, or the greater variation of topography in the highlands. We find that 80% of complex craters and 60% of simple craters have melt directions that are coincident or nearly coincident with the lowest point in their rim, implying that pre-existing topography plays a dominant role in melt emplacement. This is likely due to movement during crater modification (complex craters) or breached crater rims (simple craters). We also find that impact melt flows have very high circular polarization ratios compared to other features on the Moon. This suggests that their surfaces are some of the roughest material on the Moon at the centimeter to decimeter scale, even though they appear smooth at the meter scale. JF - Icarus AU - Neish, C D AU - Madden, J AU - Carter, L M AU - Hawke, B R AU - Giguere, T AU - Bray, V J AU - Osinski, G R AU - Cahill, J T S Y1 - 2014/09/01/ PY - 2014 DA - 2014 Sep 01 SP - 105 EP - 117 PB - Elsevier, New York, NY VL - 239 SN - 0019-1035, 0019-1035 KW - cratering KW - imagery KW - impact features KW - Moon KW - Lunar Reconnaissance Orbiter KW - global KW - radar methods KW - lunar highlands KW - distribution KW - melts KW - lunar craters KW - emplacement KW - flows KW - impact melts KW - topography KW - craters KW - titanium KW - metals KW - surface features KW - Mini-RF instrument KW - impact craters KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1623256790?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Icarus&rft.atitle=Global+distribution+of+lunar+impact+melt+flows&rft.au=Neish%2C+C+D%3BMadden%2C+J%3BCarter%2C+L+M%3BHawke%2C+B+R%3BGiguere%2C+T%3BBray%2C+V+J%3BOsinski%2C+G+R%3BCahill%2C+J+T+S&rft.aulast=Neish&rft.aufirst=C&rft.date=2014-09-01&rft.volume=239&rft.issue=&rft.spage=105&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2014.05.049 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Number of references - 53 N1 - PubXState - NY N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2014-11-13 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - cratering; craters; distribution; emplacement; flows; global; imagery; impact craters; impact features; impact melts; lunar craters; lunar highlands; Lunar Reconnaissance Orbiter; melts; metals; Mini-RF instrument; Moon; radar methods; surface features; titanium; topography DO - http://dx.doi.org/10.1016/j.icarus.2014.05.049 ER - TY - JOUR T1 - Laboratory observations and simulations of phase reddening AN - 1623256493; 2014-089015 AB - The visible reflectance spectrum of many Solar System bodies changes with changing viewing geometry for reasons not fully understood. It is often observed to redden (increasing spectral slope) with increasing solar phase angle, an effect known as phase reddening. Only once, in an observation of the martian surface by the Viking 1 lander, was reddening observed up to a certain phase angle with bluing beyond, making the reflectance ratio as a function of phase angle shaped like an arch. However, in laboratory experiments this arch-shape is frequently encountered. To investigate this, we measured the bidirectional reflectance of particulate samples of several common rock types in the 400-1000 nm wavelength range and performed ray-tracing simulations. We confirm the occurrence of the arch for surfaces that are forward scattering, i.e. are composed of semi-transparent particles and are smooth on the scale of the particles, and for which the reflectance increases from the lower to the higher wavelength in the reflectance ratio. The arch shape is reproduced by the simulations, which assume a smooth surface. However, surface roughness on the scale of the particles, such as the Hapke and van Horn (Hapke, B., van Horn, H. [1963]. J. Geophys. Res. 68, 4545-4570) fairy castles that can spontaneously form when sprinkling a fine powder, leads to monotonic reddening. A further consequence of this form of microscopic roughness (being indistinct without the use of a microscope) is a flattening of the disk function at visible wavelengths, i.e. Lommel-Seeliger-type scattering. The experiments further reveal monotonic reddening for reflectance ratios at near-IR wavelengths. The simulations fail to reproduce this particular reddening, and we suspect that it results from roughness on the surface of the particles. Given that the regolith of atmosphereless Solar System bodies is composed of small particles, our results indicate that the prevalence of monotonic reddening and Lommel-Seeliger-type scattering for these bodies results from microscopic roughness, both in the form of structures built by the particles and roughness on the surface of the particles themselves. It follows from the singular Viking 1 observation that the surface in front of the lander was composed of semi-transparent particles, and was smooth on the scale of the particle size. JF - Icarus AU - Schroeder, Stefanus E AU - Grynko, Y AU - Pommerol, A AU - Keller, H U AU - Thomas, N AU - Roush, T L Y1 - 2014/09/01/ PY - 2014 DA - 2014 Sep 01 SP - 201 EP - 216 PB - Elsevier, New York, NY VL - 239 SN - 0019-1035, 0019-1035 KW - limestone KW - spectrophotometry KW - bidirectional reflectance KW - volcanic rocks KW - igneous rocks KW - granites KW - Mars KW - simulation KW - laboratory studies KW - photometry KW - sedimentary rocks KW - plutonic rocks KW - phase angle KW - basalts KW - phase reddening KW - radiative transfer KW - roughness KW - geometry KW - wavelength KW - terrestrial planets KW - planets KW - optical properties KW - ray tracing KW - carbonate rocks KW - reflectance KW - regolith KW - remote sensing KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1623256493?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Icarus&rft.atitle=Laboratory+observations+and+simulations+of+phase+reddening&rft.au=Schroeder%2C+Stefanus+E%3BGrynko%2C+Y%3BPommerol%2C+A%3BKeller%2C+H+U%3BThomas%2C+N%3BRoush%2C+T+L&rft.aulast=Schroeder&rft.aufirst=Stefanus&rft.date=2014-09-01&rft.volume=239&rft.issue=&rft.spage=201&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2014.06.010 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Number of references - 64 N1 - PubXState - NY N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2014-11-13 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - basalts; bidirectional reflectance; carbonate rocks; geometry; granites; igneous rocks; laboratory studies; limestone; Mars; optical properties; phase angle; phase reddening; photometry; planets; plutonic rocks; radiative transfer; ray tracing; reflectance; regolith; remote sensing; roughness; sedimentary rocks; simulation; spectrophotometry; terrestrial planets; volcanic rocks; wavelength DO - http://dx.doi.org/10.1016/j.icarus.2014.06.010 ER - TY - JOUR T1 - Water delivery and giant impacts in the "Grand Tack" scenario AN - 1623256421; 2014-089007 AB - A new model for terrestrial planet formation (Hansen [2009]. Astrophys. J., 703, 1131-1140; Walsh, K.J., et al. [2011]. Nature, 2011, 206-209) has explored accretion in a truncated protoplanetary disk, and found that such a configuration is able to reproduce the distribution of mass among the planets in the Solar System, especially the Earth/Mars mass ratio, which earlier simulations have generally not been able to match. Walsh et al. (Walsh, K.J., et al. [2011]. Nature, 2011, 206-209) tested a possible mechanism to truncate the disk-a two-stage, inward-then-outward migration of Jupiter and Saturn, as found in numerous hydrodynamical simulations of giant planet formation. In addition to truncating the disk and producing a more realistic Earth/Mars mass ratio, the migration of the giant planets also populates the asteroid belt with two distinct populations of bodies-the inner belt is filled by bodies originating inside of 3 AU, and the outer belt is filled with bodies originating from between and beyond the giant planets (which are hereafter referred to as 'primitive' bodies). One implication of the truncation mechanism proposed in Walsh et al. (Walsh, K.J., et al. [2011]. Nature, 2011, 206-209) is the scattering of primitive planetesimals onto planet-crossing orbits during the formation of the planets. We find here that the planets will accrete on order 1-2% of their total mass from these bodies. For an assumed value of 10% for the water mass fraction of the primitive planetesimals, this model delivers a total amount of water comparable to that estimated to be on the Earth today. The radial distribution of the planetary masses and the dynamical excitation of their orbits are a good match to the observed system. However, we find that a truncated disk leads to formation timescales more rapid than suggested by radiometric chronometers. In particular, the last giant impact is typically earlier than 20 Myr, and a substantial amount of mass is accreted after that event. This is at odds with the dating of the Moon-forming impact and the estimated amount of mass accreted by Earth following that event. However, 5 of the 27 planets larger than half an Earth mass formed in all simulations do experience large late impacts and subsequent accretion consistent with those constraints. JF - Icarus AU - O'Brien, David P AU - Walsh, Kevin J AU - Morbidelli, Alessandro AU - Raymond, Sean N AU - Mandell, Avi M Y1 - 2014/09/01/ PY - 2014 DA - 2014 Sep 01 SP - 74 EP - 84 PB - Elsevier, New York, NY VL - 239 SN - 0019-1035, 0019-1035 KW - water KW - solar system KW - Grand Tack model KW - accretion KW - asteroid belts KW - Moon KW - orbits KW - Jupiter KW - giant impacts KW - impacts KW - simulation KW - protoplanetary disk KW - distribution KW - giant planets KW - terrestrial planets KW - mass KW - planets KW - chronology KW - transport KW - dynamics KW - planetology KW - hydrodynamics KW - outer planets KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1623256421?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Icarus&rft.atitle=Water+delivery+and+giant+impacts+in+the+%22Grand+Tack%22+scenario&rft.au=O%27Brien%2C+David+P%3BWalsh%2C+Kevin+J%3BMorbidelli%2C+Alessandro%3BRaymond%2C+Sean+N%3BMandell%2C+Avi+M&rft.aulast=O%27Brien&rft.aufirst=David&rft.date=2014-09-01&rft.volume=239&rft.issue=&rft.spage=74&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2014.05.009 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Number of references - 81 N1 - PubXState - NY N1 - Document feature - illus. incl. 5 tables N1 - Last updated - 2014-11-13 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - accretion; asteroid belts; chronology; distribution; dynamics; giant impacts; giant planets; Grand Tack model; hydrodynamics; impacts; Jupiter; mass; Moon; orbits; outer planets; planetology; planets; protoplanetary disk; simulation; solar system; terrestrial planets; transport; water DO - http://dx.doi.org/10.1016/j.icarus.2014.05.009 ER - TY - JOUR T1 - Evaluation of CMIP5 dynamic sea surface height multi-model simulations against satellite observations AN - 1566847373; 20646956 AB - We evaluate the representation of dynamic sea surface height (SSH) fields of 33 global coupled models (GCMs) contributed to the fifth phase of the Coupled Model Intercomparison Project (CMIP5). We use observations from satellite altimetry and basic performance metrics to quantify the ability of the GCMs to replicate observed SSH of the time-mean, seasonal cycle, and inter-annual variability patterns. The time-mean SSH representation has markedly improved from CMIP3 to CMIP5, both in terms of overall reduction in root-mean square differences, and in terms of reduced GCM ensemble spread. Biases of the time-mean SSH field in the Indian and Pacific Ocean equatorial regions are consistent with biases in the zonal surface wind stress fields identified with independent measurements. In the Southern Ocean, the latitude of the maximum meridional gradient of the zonal mean SSH CMIP5 models is shifted equatorward, consistent with the GCMs' spatial biases in the maximum of the zonal mean westerly surface wind stress fields. However, while the Southern Ocean SSH gradients correlate well with the maximum Antarctic circumpolar current transports, there is no significant correlation with the maximum zonal mean wind stress amplitudes, consistent with recent findings that the eddy parameterisations in GCMs dominate over wind stress amplitudes in this region. There is considerable spread across the CMIP5 ensemble for the seasonal and interannual SSH variability patterns. Because of the short observational period, the interannual variability patterns depend on the time-period over which they are derived, while no such dependency is found for the time-mean patterns. The model performance metrics for SSH presented here provide insight into GCM shortcoming due to inadequate model physics or processes. While the diagnostics of CMIP5 GCM performance relative to observations reveal that some models are clearly better than others, model performance is sensitive to the spatio-temporal scales chosen. JF - Climate Dynamics AU - Landerer, Felix W AU - Gleckler, Peter J AU - Lee, Tong AD - Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA, felix.w.landerer@jpl.nasa.gov Y1 - 2014/09// PY - 2014 DA - September 2014 SP - 1271 EP - 1283 PB - Springer Science+Business Media, Van Godewijckstraat 30 Dordrecht 3311 GX Netherlands VL - 43 IS - 5-6 SN - 0930-7575, 0930-7575 KW - Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts KW - Surface winds KW - Wind stress KW - Satellite altimetry KW - Variability KW - Mean winds KW - Correlations KW - Westerlies KW - Remote sensing KW - Antarctic KW - Current observations KW - Evaluation KW - PS, Antarctic Ocean, Antarctic Circumpolar Current KW - Ocean-atmosphere system KW - Seasonal variations KW - Wind KW - Marine KW - Climate models KW - Climates KW - Stress KW - Oceanic eddies KW - Atmospheric circulation KW - Model Studies KW - Ocean currents KW - Satellite sensing KW - Performance Evaluation KW - Interannual variability KW - Satellite data KW - Numerical simulations KW - Oceans KW - General circulation models KW - PS, Antarctic Ocean KW - M2 551.58:Climatology (551.58) KW - SW 0540:Properties of water KW - Q2 09244:Air-sea coupling UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1566847373?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Climate+Dynamics&rft.atitle=Evaluation+of+CMIP5+dynamic+sea+surface+height+multi-model+simulations+against+satellite+observations&rft.au=Landerer%2C+Felix+W%3BGleckler%2C+Peter+J%3BLee%2C+Tong&rft.aulast=Landerer&rft.aufirst=Felix&rft.date=2014-09-01&rft.volume=43&rft.issue=5-6&rft.spage=1271&rft.isbn=&rft.btitle=&rft.title=Climate+Dynamics&rft.issn=09307575&rft_id=info:doi/10.1007%2Fs00382-013-1939-x LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-09-01 N1 - Number of references - 47 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Satellite altimetry; Wind stress; Satellite sensing; Remote sensing; Westerlies; Ocean-atmosphere system; Atmospheric circulation; Current observations; Seasonal variations; Ocean currents; Surface winds; Satellite data; Interannual variability; Mean winds; Climate models; Numerical simulations; General circulation models; Correlations; Oceanic eddies; Evaluation; Performance Evaluation; Variability; Oceans; Climates; Stress; Antarctic; Wind; Model Studies; PS, Antarctic Ocean, Antarctic Circumpolar Current; PS, Antarctic Ocean; Marine DO - http://dx.doi.org/10.1007/s00382-013-1939-x ER - TY - JOUR T1 - Spacecraft Occupant Protection Requirements: A Review of the Recent Changes AN - 1566845929; 20756886 AB - NASA has recently updated spacecraft design requirements for protecting crewmembers during dynamic spaceflight phases. The details of the update are available In a NASA publication (NASA TM-2013-217380) and are summarized here. Previously, NASA's occupant protection requirements relied primarily on the multiaxial dynamic response criterion, which NASA refers to as the Brinkley Dynamic Response Criteria (BDRC). Although simple to implement, there are several important ground rules that must be met for the injury predictions to be applicable. These include proper restraint, flail controls, proper seating support, pressure suit considerations, head protection including consideration of helmet mass, and spaceflight deconditioning. Even if these ground rules are met, there are limitations to the model that must be addressed, including: model validation, sex differences, age effects, anthropometry effects, and differences between the physical fitness of military test subjects and future crewmembers. To address these limitations, new injury assessment reference values (IARV) have been prescribed for the 5 super(th) percentile female and 95 super(th) percentile male Hybrid III anthropomorphic test devices (ATD). These metrics are head-injury criterion, head-rotational acceleration, neck injury criterion, neck-axial-force limits, flail prevention, and lumbar-axial compression force. Using these new ATD IARVs, NASA can have increased confidence that vehicle designs mitigate the risk of injury during dynamic phases of flight. JF - Aviation, Space, and Environmental Medicine AU - Somers, Jeffrey T AU - GOHMERT, DUSTIN M AU - Brinkley, James W AD - Wyle Science, Technology and Engineering Group, and the Crew and Thermal Systems Division, NASA Johnson Space Center, Houston, TX, jeff.somers@nasa.gov Y1 - 2014/09// PY - 2014 DA - Sep 2014 SP - 940 EP - 948 PB - Aerospace Medical Association, 320 S. Henry St. Alexandria VA 22314-3579 United States VL - 85 IS - 9 SN - 0095-6562, 0095-6562 KW - Risk Abstracts; Health & Safety Science Abstracts KW - injury biomechanics KW - Hybrid III KW - multi-axial dynamic response criterion KW - Brinkley model KW - anthropomorphic test device KW - impact biomechanics KW - Prediction KW - Risk assessment KW - Age KW - Injuries KW - Helmets KW - Spacecraft KW - Health risks KW - Prevention KW - Neck injuries KW - Reviews KW - Hybrids KW - Military KW - R2 23020:Technological risks KW - H 1000:Occupational Safety and Health UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1566845929?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ariskabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Aviation%2C+Space%2C+and+Environmental+Medicine&rft.atitle=Spacecraft+Occupant+Protection+Requirements%3A+A+Review+of+the+Recent+Changes&rft.au=Somers%2C+Jeffrey+T%3BGOHMERT%2C+DUSTIN+M%3BBrinkley%2C+James+W&rft.aulast=Somers&rft.aufirst=Jeffrey&rft.date=2014-09-01&rft.volume=85&rft.issue=9&rft.spage=940&rft.isbn=&rft.btitle=&rft.title=Aviation%2C+Space%2C+and+Environmental+Medicine&rft.issn=00956562&rft_id=info:doi/10.3357%2FASEM.4004.2014 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-09-01 N1 - Number of references - 80 N1 - Last updated - 2015-04-09 N1 - SubjectsTermNotLitGenreText - Risk assessment; Prediction; Health risks; Age; Prevention; Neck injuries; Injuries; Helmets; Hybrids; Reviews; Military; Spacecraft DO - http://dx.doi.org/10.3357/ASEM.4004.2014 ER - TY - JOUR T1 - Body Mass Changes During Long-Duration Spaceflight AN - 1566845552; 20756880 AB - Background: During early spaceflights, many crewmembers did not meet their caloric requirements and consequently lost body mass during flight, as assessed by a decrease in postflight body mass. Maintaining body mass during spaceflight is crucial for maintaining crew health and monitoring body mass is thus important to medical operations as well as being a key component of human research. Determining body mass becomes difficult in a microgravity environment. Methods: We report data from two mass measurement devices on the International Space Station (ISS): the Russian body mass measuring device (BMMD), which uses spring oscillation physics, and NASA's Space Linear Acceleration Mass Measurement Device (SLAMMD), which uses Newton's second law of motion (F = ma). Results: For 25 crewmembers whose body mass was measured on both devices, significant body mass loss occurred compared to preflight (gravimetric scale) and averaged -4.4% as assessed by BMMD and -2.8% as assessed by SLAMMD. After an initial loss in the first 30 d of flight, body mass remained constant through the rest of the mission, as determined using either device. The mean difference between the two devices was 1.1 kg when the closest SLAMMD and BMMD measurements were compared (6.9 + or - 6.2 d apart). Dietary intake during flight is approximately 80% of the World Health Organization estimated requirement and the decrease in body mass follows in-flight energy Intake closely on average. Conclusion: Body mass monitoring is important for monitoring crew health during a mission and to help ensure that crewmembers consume adequate energy intake to mitigate the risks of spaceflight. JF - Aviation, Space, and Environmental Medicine AU - Zwart, Sara R AU - Launius, Ryan D AU - Coen, Geoffrey K AU - MORGAN, JINNIFER L L AU - Charles, John B AU - Smith, Scott M AD - NASA Johnson Space Center, Houston, TX, scott.m.smith@nasa.gov Y1 - 2014/09// PY - 2014 DA - Sep 2014 SP - 897 EP - 904 PB - Aerospace Medical Association, 320 S. Henry St. Alexandria VA 22314-3579 United States VL - 85 IS - 9 SN - 0095-6562, 0095-6562 KW - Health & Safety Science Abstracts; Risk Abstracts KW - body mass KW - energy intake KW - spaceflight KW - weightlessness KW - Risk assessment KW - Diets KW - Body mass KW - Energy KW - Ingestion KW - H 2000:Transportation KW - R2 23060:Medical and environmental health UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1566845552?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ariskabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Aviation%2C+Space%2C+and+Environmental+Medicine&rft.atitle=Body+Mass+Changes+During+Long-Duration+Spaceflight&rft.au=Zwart%2C+Sara+R%3BLaunius%2C+Ryan+D%3BCoen%2C+Geoffrey+K%3BMORGAN%2C+JINNIFER+L+L%3BCharles%2C+John+B%3BSmith%2C+Scott+M&rft.aulast=Zwart&rft.aufirst=Sara&rft.date=2014-09-01&rft.volume=85&rft.issue=9&rft.spage=897&rft.isbn=&rft.btitle=&rft.title=Aviation%2C+Space%2C+and+Environmental+Medicine&rft.issn=00956562&rft_id=info:doi/10.3357%2FASEM.3979.2014 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-09-01 N1 - Number of references - 21 N1 - Last updated - 2015-04-02 N1 - SubjectsTermNotLitGenreText - Diets; Risk assessment; Energy; Body mass; Ingestion DO - http://dx.doi.org/10.3357/ASEM.3979.2014 ER - TY - JOUR T1 - G-Loading and Vibration Effects on Heart and Respiration Rates AN - 1566844133; 20756887 AB - Background: Operational environments expose pilots and astronauts to sustained acceleration (G loading) and whole-body vibration, alone and in combination. Separately, the physiological effects of G loading and vibration have been well studied; both have effects similar to mild exercise. The few studies of combined G loading and vibration have not reported an Interaction between these factors on physiological responses. Methods: We tested the effects of G loading (+1 and +3.8 G sub(x)) and vibration (0.5 g sub(x) at 8, 12, and 16 Hz), alone and in combination, on heart and respiration rate. Results: We observed an effect of G loading on heart rate (average increase of 23 bpm, SD: 12) and respiration rate (average increase of 5 breaths per minute, SD: 5), an effect of vibration on heart rate, and an interaction on heart rate. With vibration, we observed heart rate increases of 4 bpm (SD: 3) with no increase in respiration rate. In the +1 G sub(x) condition, the largest heart rate increase occurred during low-frequency (8 Hz) vibration, while at +3.8 G sub(x), the largest heart rate increase occurred during high-frequency (16 Hz) vibration, demonstrating interaction. Discussion: Consistent with previous reports, our G-loading and vibration effects are similar to mild exercise. In addition, we observed an interaction between G loading and vibration on heart rate, with maximum heart rates occurring at a higher vibration frequency at +3.8 G sub(x) compared to +1 G sub(x). The observed interaction demonstrates that G-loading and vibration effects are not independent and can only be properly assessed during combined exposure. JF - Aviation, Space, and Environmental Medicine AU - Godinez, Angelica AU - LISTON, DORION B AU - AYZENBERG, RUTHIE AU - Toscano, William B AU - COWINGS, PATRICIA A AU - Stone, Leland S AD - NASA Ames Research Center, Moffett Field, CA, leland.s.stone@nasa.gov Y1 - 2014/09// PY - 2014 DA - Sep 2014 SP - 949 EP - 953 PB - Aerospace Medical Association, 320 S. Henry St. Alexandria VA 22314-3579 United States VL - 85 IS - 9 SN - 0095-6562, 0095-6562 KW - Health & Safety Science Abstracts KW - stress KW - launch KW - ascent KW - interaction KW - autonomic nervous system KW - Vibration KW - Respiration KW - Heart rate KW - Physiological responses KW - Physiology KW - Pilots KW - H 2000:Transportation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1566844133?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ahealthsafetyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Aviation%2C+Space%2C+and+Environmental+Medicine&rft.atitle=G-Loading+and+Vibration+Effects+on+Heart+and+Respiration+Rates&rft.au=Godinez%2C+Angelica%3BLISTON%2C+DORION+B%3BAYZENBERG%2C+RUTHIE%3BToscano%2C+William+B%3BCOWINGS%2C+PATRICIA+A%3BStone%2C+Leland+S&rft.aulast=Godinez&rft.aufirst=Angelica&rft.date=2014-09-01&rft.volume=85&rft.issue=9&rft.spage=949&rft.isbn=&rft.btitle=&rft.title=Aviation%2C+Space%2C+and+Environmental+Medicine&rft.issn=00956562&rft_id=info:doi/10.3357%2FASEM.1015.2014 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-09-01 N1 - Number of references - 15 N1 - Last updated - 2015-04-02 N1 - SubjectsTermNotLitGenreText - Respiration; Vibration; Pilots; Physiology; Physiological responses; Heart rate DO - http://dx.doi.org/10.3357/ASEM.1015.2014 ER - TY - JOUR T1 - Comparison of Near-Surface Air Temperatures and MODIS Ice-Surface Temperatures at Summit, Greenland (2008-13) AN - 1566833198; 20727049 AB - Comparisons are described for infrared-derived cloud products retrieved from the Moderate Resolution Imaging Spectroradiometer (MODIS) and the Atmospheric Infrared Sounder (AIRS) using measured spatial response functions obtained from prelaunch AIRS calibration. One full day (1 January 2005) of global collection-5 MODIS and version-5 AIRS retrievals of cloud-top temperature Tc, effective cloud fraction f, and derived effective brightness temperature Tb,e is investigated. Comparisons of Tb,e demonstrate that MODIS and AIRS are essentially radiatively consistent and that MODIS Tb,e is 0.62 K higher than AIRS Tb,e for all scenes, increasing to 1.43 K for cloud described by AIRS as single layer and decreasing to 0.50 K for two-layer clouds. Somewhat larger differences in Tc and f are observed between the two instruments. The magnitudes of differences depend partly on whether MODIS uses a CO2-slicing or 11-m brightness temperature window retrieval method. Some cloud- and regime-type differences and similarities between AIRS and MODIS cloud products are traceable to the assumptions made about the number of cloud layers in AIRS and also to the MODIS retrieval method. This (partially) holistic comparison approach should be useful for ongoing algorithm refinements, rigorous assessments of climate applicability, and establishment of the capability of synergistic MODIS and AIRS retrievals for improved cloud quantities and also should be useful for future observations to be made by the National Polar-Orbiting Operational Environmental Satellite System (NPOESS) Preparatory Project (NPP). JF - Journal of Applied Meteorology and Climatology AU - Shuman, Christopher A AU - Hall, Dorothy K AU - DiGirolamo, Nicolo E AU - Mefford, Thomas K AU - Schnaubelt, Michael J AD - Joint Center for Earth Systems Technology, University of Maryland, Baltimore County, Baltimore, and NASA Goddard Space Flight Center, Greenbelt, Maryland Y1 - 2014/09// PY - 2014 DA - September 2014 SP - 2171 EP - 2180 PB - American Meteorological Society, 45 Beacon St. Boston MA 02108-3693 United States VL - 53 IS - 9 SN - 1558-8424, 1558-8424 KW - Meteorological & Geoastrophysical Abstracts; Water Resources Abstracts; Aqualine Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Environment Abstracts KW - Climate change KW - Remote sensing KW - Algorithms KW - Surface radiation temperature KW - Air temperature KW - Greenland KW - Assessments KW - Calibrations KW - Meteorology KW - MODIS (Moderate Resolution Imaging Spectrometer) KW - Climatology KW - AN, Greenland KW - Mathematical models KW - Air Temperature KW - Climates KW - Temperature KW - Satellites KW - Imaging techniques KW - Clouds KW - Satellite data KW - Brightness temperature KW - AQ 00001:Water Resources and Supplies KW - SW 5010:Network design KW - M2 551.576:Clouds (551.576) KW - Q2 09244:Air-sea coupling KW - ENA 01:Air Pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1566833198?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Applied+Meteorology+and+Climatology&rft.atitle=Comparison+of+Near-Surface+Air+Temperatures+and+MODIS+Ice-Surface+Temperatures+at+Summit%2C+Greenland+%282008-13%29&rft.au=Shuman%2C+Christopher+A%3BHall%2C+Dorothy+K%3BDiGirolamo%2C+Nicolo+E%3BMefford%2C+Thomas+K%3BSchnaubelt%2C+Michael+J&rft.aulast=Shuman&rft.aufirst=Christopher&rft.date=2014-09-01&rft.volume=53&rft.issue=9&rft.spage=2171&rft.isbn=&rft.btitle=&rft.title=Journal+of+Applied+Meteorology+and+Climatology&rft.issn=15588424&rft_id=info:doi/10.1175%2FJAMC-D-14-0023.1 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-09-01 N1 - Number of references - 40 N1 - Last updated - 2016-07-07 N1 - SubjectsTermNotLitGenreText - Clouds; Mathematical models; Climate change; Climatology; Air temperature; Imaging techniques; Surface radiation temperature; Satellite data; Algorithms; Brightness temperature; MODIS (Moderate Resolution Imaging Spectrometer); Remote sensing; Temperature; Meteorology; Satellites; Calibrations; Assessments; Air Temperature; Climates; Greenland; AN, Greenland DO - http://dx.doi.org/10.1175/JAMC-D-14-0023.1 ER - TY - JOUR T1 - Calcium kinetics during bed rest with artificial gravity and exercise countermeasures AN - 1560103487; 20609050 AB - Summary: We assessed the potential for countermeasures to lessen the loss of bone calcium during bed rest. Subjects ingested less calcium during bed rest, and with artificial gravity, they also absorbed less calcium. With exercise, they excreted less calcium. To retain bone during bed rest, calcium intake needs to be maintained. Introduction: This study aims to assess the potential for artificial gravity (AG) and exercise (EX) to mitigate loss of bone calcium during space flight. Methods: We performed two studies: (1) a 21-day bed rest (BR) study with subjects receiving 1 h/day AG (n=8) or no AG (n=7) and (2) a 28-day BR study with 1 h/day resistance EX (n=10) or no EX (n=3). In both studies, stable isotopes of Ca were administered orally and intravenously, at baseline and after 10 days of BR, and blood, urine, and feces were sampled for up to 14 days post dosing. Tracers were measured using thermal ionization mass spectrometry. Data were analyzed by compartmental modeling. Results: Less Ca was absorbed during BR, resulting in lower Ca balance in BR+AG (-6.04 plus or minus 3.38 mmol/day, P=0.023). However, Ca balance did not change with BR+EX, even though absorbed Ca decreased and urinary Ca excretion increased, because endogenous excretion decreased, and there was a trend for increased bone deposition (P=0.06). Urinary N-telopeptide excretion increased in controls during BR, but not in the EX group. Markers of bone formation were not different between treatment groups for either study. Ca intake decreased during BR (by 5.4 mmol/day in the AG study and 2.8 mmol/day in the EX study), resulting in lower absorbed Ca. Conclusions: During BR (or space flight), Ca intake needs to be maintained or even increased with countermeasures such as exercise, to enable maintenance of bone Ca. JF - Osteoporosis International AU - Smith, S M AU - Castaneda-Sceppa, C AU - O'Brien, KO AU - Abrams, SA AU - Gillman, P AU - Brooks, N E AU - Cloutier, G J AU - Heer, M AU - Zwart AU - Wastney, ME AD - NASA Lyndon B. Johnson Space Center, Attn: Mail Code SK3, 2101 NASA Parkway, Houston, TX, 77058, USA, scott.m.smith@nasa.gov Y1 - 2014/09// PY - 2014 DA - Sep 2014 SP - 2237 EP - 2244 PB - Springer Science+Business Media, Van Godewijckstraat 30 Dordrecht 3311 GX Netherlands VL - 25 IS - 9 SN - 0937-941X, 0937-941X KW - Physical Education Index; Calcium & Calcified Tissue Abstracts KW - Isotopes KW - Exercise physiology KW - Calcium KW - Bones KW - Gravity KW - Mass spectroscopy KW - Tracers KW - Objectives KW - Feces KW - Balance KW - Osteogenesis KW - Data processing KW - Space flight KW - Osteoporosis KW - Physical training KW - Blood KW - Urine KW - Kinetics KW - Bone loss KW - Excretion KW - Minerals KW - Immobilization KW - Modeling KW - T 2020:Nutrition and Metabolism KW - PE 030:Exercise, Health & Physical Fitness UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1560103487?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aphysicaleducation&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Osteoporosis+International&rft.atitle=Calcium+kinetics+during+bed+rest+with+artificial+gravity+and+exercise+countermeasures&rft.au=Smith%2C+S+M%3BCastaneda-Sceppa%2C+C%3BO%27Brien%2C+KO%3BAbrams%2C+SA%3BGillman%2C+P%3BBrooks%2C+N+E%3BCloutier%2C+G+J%3BHeer%2C+M%3BZwart%3BWastney%2C+ME&rft.aulast=Smith&rft.aufirst=S&rft.date=2014-09-01&rft.volume=25&rft.issue=9&rft.spage=2237&rft.isbn=&rft.btitle=&rft.title=Osteoporosis+International&rft.issn=0937941X&rft_id=info:doi/10.1007%2Fs00198-014-2754-x LA - English DB - Physical Education Index N1 - Date revised - 2014-09-01 N1 - Number of references - 27 N1 - Last updated - 2014-11-12 N1 - SubjectsTermNotLitGenreText - Exercise physiology; Bones; Urine; Gravity; Objectives; Balance; Minerals; Modeling; Immobilization; Isotopes; Calcium; Data processing; Space flight; Osteoporosis; Mass spectroscopy; Physical training; Tracers; Blood; Kinetics; Bone loss; Excretion; Feces; Osteogenesis DO - http://dx.doi.org/10.1007/s00198-014-2754-x ER - TY - JOUR T1 - Broadscale postseismic gravity change following the 2011 Tohoku-Oki earthquake and implication for deformation by viscoelastic relaxation and afterslip AN - 1696877610; 2015-068946 AB - The analysis of GRACE gravity data revealed postseismic gravity increase by 6 mu Gal over a 500 km scale within a couple of years after the 2011 Tohoku-Oki earthquake, which is nearly 40-50% of the coseismic gravity change. It originates mostly from changes in the isotropic component corresponding to the M (sub rr) moment tensor element. The exponential decay with rapid change in a year and gradual change afterward is a characteristic temporal pattern. Both viscoelastic relaxation and afterslip models produce reasonable agreement with the GRACE free-air gravity observation, while their Bouguer gravity patterns and seafloor vertical deformations are distinctly different. The postseismic gravity variation is best modeled by the biviscous relaxation with a transient and steady state viscosity of 10 (super 18) and 10 (super 19) Pa s, respectively, for the asthenosphere. Our calculated higher-resolution viscoelastic relaxation model, underlying the partially ruptured elastic lithosphere, yields the localized postseismic subsidence above the hypocenter reported from the GPS-acoustic seafloor surveying. Abstract Copyright (2014), The Authors. JF - Geophysical Research Letters AU - Han, Shin-Chan AU - Sauber, Jeanne AU - Pollitz, Fred Y1 - 2014/08/28/ PY - 2014 DA - 2014 Aug 28 SP - 5797 EP - 5805 PB - American Geophysical Union, Washington, DC VL - 41 IS - 16 SN - 0094-8276, 0094-8276 KW - Tohoku-Oki earthquake 2011 KW - Far East KW - geophysical surveys KW - geophysical methods KW - GRACE KW - relaxation KW - deformation KW - satellite methods KW - viscoelasticity KW - West Pacific KW - gravity methods KW - North Pacific KW - Pacific Ocean KW - surveys KW - Honshu KW - Northwest Pacific KW - Asia KW - earthquakes KW - Japan KW - 19:Seismology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1696877610?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=Broadscale+postseismic+gravity+change+following+the+2011+Tohoku-Oki+earthquake+and+implication+for+deformation+by+viscoelastic+relaxation+and+afterslip&rft.au=Han%2C+Shin-Chan%3BSauber%2C+Jeanne%3BPollitz%2C+Fred&rft.aulast=Han&rft.aufirst=Shin-Chan&rft.date=2014-08-28&rft.volume=41&rft.issue=16&rft.spage=5797&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1002%2F2014GL060905 L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%291944-8007/issues LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2015-01-01 N1 - Number of references - 40 N1 - PubXState - DC N1 - Document feature - illus. incl. sketch map N1 - Last updated - 2015-07-17 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - Asia; deformation; earthquakes; Far East; geophysical methods; geophysical surveys; GRACE; gravity methods; Honshu; Japan; North Pacific; Northwest Pacific; Pacific Ocean; relaxation; satellite methods; surveys; Tohoku-Oki earthquake 2011; viscoelasticity; West Pacific DO - http://dx.doi.org/10.1002/2014GL060905 ER - TY - JOUR T1 - GRAIL gravity constraints on the vertical and lateral density structure of the lunar crust AN - 1696877466; 2015-068943 AB - We analyzed data from the Gravity Recovery and Interior Laboratory (GRAIL) mission using a localized admittance approach to map out spatial variations in the vertical density structure of the lunar crust. Mare regions are characterized by a distinct decrease in density with depth, while the farside is characterized by an increase in density with depth at an average gradient of approximately 35 kg m (super -3) km (super -1) and typical surface porosities of at least 20%. The Apollo 12 and 14 landing site region has a similar density structure to the farside, permitting a comparison with seismic velocity profiles. The interior of the South Pole-Aitken (SP-A) impact basin appears distinct with a near-surface low-density (porous) layer 2-3 times thinner than the rest of the farside. This result suggests that redistribution of material during the large SP-A impact likely played a major role in sculpting the lunar crust. Abstract Copyright (2014), American Geophysical Union. All Rights Reserved. JF - Geophysical Research Letters AU - Besserer, Jonathan AU - Nimmo, Francis AU - Wieczorek, Mark A AU - Weber, Renee C AU - Kiefer, Walter S AU - McGovern, Patrick J AU - Andrews-Hanna, Jeffrey C AU - Smith, David E AU - Zuber, Maria T Y1 - 2014/08/28/ PY - 2014 DA - 2014 Aug 28 SP - 5771 EP - 5777 PB - American Geophysical Union, Washington, DC VL - 41 IS - 16 SN - 0094-8276, 0094-8276 KW - gravity field KW - seismic profiles KW - geophysical surveys KW - density KW - Moon KW - lunar crust KW - geophysical methods KW - surveys KW - geophysical profiles KW - maria KW - seismic methods KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1696877466?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=GRAIL+gravity+constraints+on+the+vertical+and+lateral+density+structure+of+the+lunar+crust&rft.au=Besserer%2C+Jonathan%3BNimmo%2C+Francis%3BWieczorek%2C+Mark+A%3BWeber%2C+Renee+C%3BKiefer%2C+Walter+S%3BMcGovern%2C+Patrick+J%3BAndrews-Hanna%2C+Jeffrey+C%3BSmith%2C+David+E%3BZuber%2C+Maria+T&rft.aulast=Besserer&rft.aufirst=Jonathan&rft.date=2014-08-28&rft.volume=41&rft.issue=16&rft.spage=5771&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1002%2F2014GL060240 L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%291944-8007/issues LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2015-01-01 N1 - Number of references - 34 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2015-07-17 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - density; geophysical methods; geophysical profiles; geophysical surveys; gravity field; lunar crust; maria; Moon; seismic methods; seismic profiles; surveys DO - http://dx.doi.org/10.1002/2014GL060240 ER - TY - JOUR T1 - Groundwater depletion during drought threatens future water security of the Colorado River basin AN - 1696875738; 2015-068957 AB - Streamflow of the Colorado River Basin is the most overallocated in the world. Recent assessment indicates that demand for this renewable resource will soon outstrip supply, suggesting that limited groundwater reserves will play an increasingly important role in meeting future water needs. Here we analyze 9 years (December 2004 to November 2013) of observations from the NASA Gravity Recovery and Climate Experiment mission and find that during this period of sustained drought, groundwater accounted for 50.1 km (super 3) of the total 64.8 km (super 3) of freshwater loss. The rapid rate of depletion of groundwater storage (-5.6 + or - 0.4 km (super 3) yr (super -1) ) far exceeded the rate of depletion of Lake Powell and Lake Mead. Results indicate that groundwater may comprise a far greater fraction of Basin water use than previously recognized, in particular during drought, and that its disappearance may threaten the long-term ability to meet future allocations to the seven Basin states. Abstract Copyright (2014), The Authors. JF - Geophysical Research Letters AU - Castle, Stephanie L AU - Thomas, Brian F AU - Reager, John T AU - Rodell, Matthew AU - Swenson, Sean C AU - Famiglietti, James S Y1 - 2014/08/28/ PY - 2014 DA - 2014 Aug 28 SP - 5904 EP - 5911 PB - American Geophysical Union, Washington, DC VL - 41 IS - 16 SN - 0094-8276, 0094-8276 KW - United States KW - hydrology KW - water supply KW - Colorado River basin KW - surface water KW - water management KW - Lake Powell KW - Southwestern U.S. KW - climate change KW - ground water KW - drought KW - streamflow KW - Lake Meade KW - climate effects KW - discharge KW - water resources KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1696875738?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=Groundwater+depletion+during+drought+threatens+future+water+security+of+the+Colorado+River+basin&rft.au=Castle%2C+Stephanie+L%3BThomas%2C+Brian+F%3BReager%2C+John+T%3BRodell%2C+Matthew%3BSwenson%2C+Sean+C%3BFamiglietti%2C+James+S&rft.aulast=Castle&rft.aufirst=Stephanie&rft.date=2014-08-28&rft.volume=41&rft.issue=16&rft.spage=5904&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1002%2F2014GL061055 L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%291944-8007/issues LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2015-07-17 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - climate change; climate effects; Colorado River basin; discharge; drought; ground water; hydrology; Lake Meade; Lake Powell; Southwestern U.S.; streamflow; surface water; United States; water management; water resources; water supply DO - http://dx.doi.org/10.1002/2014GL061055 ER - TY - JOUR T1 - Accretion and evolution of approximately 2.5 Earth-mass planets with voluminous H/He envelopes AN - 1849300391; 2016-104822 AB - Formation of planets in the Neptune size range with low-mass, but voluminous, H (sub 2) /He gaseous envelopes is modeled by detailed numerical simulations according to the core-nucleated accretion scenario. Formation locations ranging from 0.5 to 4 AU from a star of 1 (Mass compared to the Sun symbol) are considered. The final planets have heavy-element cores of 2.2-2.5 (Mass compared to the Earth) and envelopes in the range 0.037-0.16 (Mass compared to the Earth). After the formation process, which lasts 2 Myr or less, the planets evolve at constant mass up to an age of several Gyr. For assumed equilibrium temperatures of 250, 500, and 1000 K, their calculated final radii are compared with those observed by the Kepler spacecraft. For the particular case of Kepler-11 f, we address the question whether it could have formed in situ or whether migration from a formation location farther out in the disk is required. Copyright (Copyright) 2014. The American Astronomical Society. All rights reserved. JF - The Astrophysical Journal AU - Bodenheimer, Peter AU - Lissauer, Jack J Y1 - 2014/08/20/ PY - 2014 DA - 2014 Aug 20 EP - Paper no. 103 PB - IOP Publishing for American Astronomical Society, Bristol VL - 791 IS - 2 SN - 0004-637X, 0004-637X KW - migration KW - accretion KW - numerical models KW - extrasolar planets KW - Kepler-11f extrasolar planet KW - simulation KW - iron KW - temperature KW - size KW - mass KW - planets KW - noble gases KW - mini-Neptunes KW - metals KW - ice KW - hydrogen KW - volume KW - helium KW - core KW - rocks KW - Kepler Mission KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849300391?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+Astrophysical+Journal&rft.atitle=Accretion+and+evolution+of+approximately+2.5+Earth-mass+planets+with+voluminous+H%2FHe+envelopes&rft.au=Bodenheimer%2C+Peter%3BLissauer%2C+Jack+J&rft.aulast=Bodenheimer&rft.aufirst=Peter&rft.date=2014-08-20&rft.volume=791&rft.issue=2&rft.spage=&rft.isbn=&rft.btitle=&rft.title=The+Astrophysical+Journal&rft.issn=0004637X&rft_id=info:doi/10.1088%2F0004-637X%2F791%2F2%2F103 L2 - http://iopscience.iop.org/0004-637X LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by IOP Publishing Ltd., London, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 40 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2016-12-16 N1 - SubjectsTermNotLitGenreText - accretion; core; extrasolar planets; helium; hydrogen; ice; iron; Kepler Mission; Kepler-11f extrasolar planet; mass; metals; migration; mini-Neptunes; noble gases; numerical models; planets; rocks; simulation; size; temperature; volume DO - http://dx.doi.org/10.1088/0004-637X/791/2/103 ER - TY - JOUR T1 - Earliest Holocene south Greenland ice sheet retreat within its late Holocene extent AN - 1623256540; 2014-089182 AB - Early Holocene summer warmth drove dramatic Greenland ice sheet (GIS) retreat. Subsequent insolation-driven cooling caused GIS margin readvance to late Holocene maxima, from which ice margins are now retreating. We use (super 10) Be surface exposure ages from four locations between 69.4 degrees N and 61.2 degrees N to date when in the early Holocene south to west GIS margins retreated to within these late Holocene maximum extents. We find that this occurred at 11.1 + or - 0.2 ka to 10.6 + or - 0.5 ka in south Greenland, significantly earlier than previous estimates, and 6.8 + or - 0.1 ka to 7.9 + or - 0.1 ka in southwest to west Greenland, consistent with existing (super 10) Be ages. At least in south Greenland, these (super 10) Be ages likely provide a minimum constraint for when on a multicentury timescale summer temperatures after the last deglaciation warmed above late Holocene temperatures in the early Holocene. Current south Greenland ice margin retreat suggests that south Greenland may have now warmed to or above earliest Holocene summer temperatures. Abstract Copyright (2014), . American Geophysical Union. All Rights Reserved. JF - Geophysical Research Letters AU - Carlson, Anders E AU - Winsor, Kelsey AU - Ullman, David J AU - Brook, Edward J AU - Rood, Dylan H AU - Axford, Yarrow AU - LeGrande, Allegra N AU - Anslow, Faron S AU - Sinclair, Gaylen Y1 - 2014/08/16/ PY - 2014 DA - 2014 Aug 16 SP - 5514 EP - 5521 PB - American Geophysical Union, Washington, DC VL - 41 IS - 15 SN - 0094-8276, 0094-8276 KW - Quaternary KW - glaciation KW - Arctic region KW - Greenland ice sheet KW - ice cover KW - paleoclimatology KW - Holocene KW - ice sheets KW - deglaciation KW - climate change KW - Cenozoic KW - Greenland KW - glacial geology KW - upper Holocene KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1623256540?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=Earliest+Holocene+south+Greenland+ice+sheet+retreat+within+its+late+Holocene+extent&rft.au=Carlson%2C+Anders+E%3BWinsor%2C+Kelsey%3BUllman%2C+David+J%3BBrook%2C+Edward+J%3BRood%2C+Dylan+H%3BAxford%2C+Yarrow%3BLeGrande%2C+Allegra+N%3BAnslow%2C+Faron+S%3BSinclair%2C+Gaylen&rft.aulast=Carlson&rft.aufirst=Anders&rft.date=2014-08-16&rft.volume=41&rft.issue=15&rft.spage=5514&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1002%2F2014GL060800 L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%291944-8007/issues LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2014-01-01 N1 - Number of references - 30 N1 - PubXState - DC N1 - Document feature - illus. incl. sketch map N1 - Last updated - 2014-11-13 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - Arctic region; Cenozoic; climate change; deglaciation; glacial geology; glaciation; Greenland; Greenland ice sheet; Holocene; ice cover; ice sheets; paleoclimatology; Quaternary; upper Holocene DO - http://dx.doi.org/10.1002/2014GL060800 ER - TY - JOUR T1 - Evidence for interstellar origin of seven dust particles collected by the Stardust spacecraft AN - 1618133384; 2014-086853 AB - Seven particles captured by the Stardust Interstellar Dust Collector and returned to Earth for laboratory analysis have features consistent with an origin in the contemporary interstellar dust stream. More than 50 spacecraft debris particles were also identified. The interstellar dust candidates are readily distinguished from debris impacts on the basis of elemental composition and/or impact trajectory. The seven candidate interstellar particles are diverse in elemental composition, crystal structure, and size. The presence of crystalline grains and multiple iron-bearing phases, including sulfide, in some particles indicates that individual interstellar particles diverge from any one representative model of interstellar dust inferred from astronomical observations and theory. JF - Science AU - Westphal, Andrew J AU - Stroud, Rhonda M AU - Bechtel, Hans A AU - Brenker, Frank E AU - Butterworth, Anna L AU - Flynn, George J AU - Frank, David R AU - Gainsforth, Zack AU - Hillier, Jon K AU - Postberg, Frank AU - Simionovici, Alexandre S AU - Sterken, Veerle J AU - Nittler, Larry R AU - Allen, Carlton AU - Anderson, David AU - Ansari, Asna AU - Bajt, Sasa AU - Bastien, Ron K AU - Bassim, Nabil AU - Bridges, John AU - Brownlee, Donald E AU - Burchell, Mark AU - Burghammer, Manfred AU - Changela, Hitesh AU - Cloetens, Peter AU - Davis, Andrew M AU - Doll, Ryan AU - Floss, Christine AU - Gruen, Eberhard AU - Heck, Philipp R AU - Hoppe, Peter AU - Hudson, Bruce AU - Huth, Joachim AU - Kearsley, Anton AU - King, Ashley J AU - Lai, Barry AU - Leitner, Jan AU - Lemelle, Laurence AU - Leonard, Ariel AU - Leroux, Hugues AU - Lettieri, Robert AU - Marchant, William AU - Ogliore, Ryan AU - Ong, Wei Jia AU - Price, Mark C AU - Sandford, Scott A AU - Tresseras, Juan-Angel Sans AU - Schmitz, Sylvia AU - Schoonjans, Tom AU - Schreiber, Kate AU - Silversmit, Geert AU - Sole, Vicente A AU - Srama, Ralf AU - Stadermann, Frank AU - Stephan, Thomas AU - Stodolna, Julien AU - Sutton, Stephen AU - Trieloff, Mario AU - Tsou, Peter AU - Tyliszczak, Tolek AU - Vekemans, Bart AU - Vincze, Laszlo AU - von Korff, Joshua AU - Wordsworth, Naomi AU - Zevin, Daniel AU - Zolensky, Michael E Y1 - 2014/08/15/ PY - 2014 DA - 2014 Aug 15 SP - 786 EP - 791 PB - American Association for the Advancement of Science, Washington, DC VL - 345 IS - 6198 SN - 0036-8075, 0036-8075 KW - experimental studies KW - X-ray diffraction data KW - Stardust Mission KW - crystal structure KW - cosmochemistry KW - interplanetary dust KW - models KW - laboratory studies KW - physical properties KW - debris KW - cosmic dust KW - mineral composition KW - identification KW - X-ray fluorescence spectra KW - spectra KW - geochemistry KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1618133384?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Science&rft.atitle=Evidence+for+interstellar+origin+of+seven+dust+particles+collected+by+the+Stardust+spacecraft&rft.au=Westphal%2C+Andrew+J%3BStroud%2C+Rhonda+M%3BBechtel%2C+Hans+A%3BBrenker%2C+Frank+E%3BButterworth%2C+Anna+L%3BFlynn%2C+George+J%3BFrank%2C+David+R%3BGainsforth%2C+Zack%3BHillier%2C+Jon+K%3BPostberg%2C+Frank%3BSimionovici%2C+Alexandre+S%3BSterken%2C+Veerle+J%3BNittler%2C+Larry+R%3BAllen%2C+Carlton%3BAnderson%2C+David%3BAnsari%2C+Asna%3BBajt%2C+Sasa%3BBastien%2C+Ron+K%3BBassim%2C+Nabil%3BBridges%2C+John%3BBrownlee%2C+Donald+E%3BBurchell%2C+Mark%3BBurghammer%2C+Manfred%3BChangela%2C+Hitesh%3BCloetens%2C+Peter%3BDavis%2C+Andrew+M%3BDoll%2C+Ryan%3BFloss%2C+Christine%3BGruen%2C+Eberhard%3BHeck%2C+Philipp+R%3BHoppe%2C+Peter%3BHudson%2C+Bruce%3BHuth%2C+Joachim%3BKearsley%2C+Anton%3BKing%2C+Ashley+J%3BLai%2C+Barry%3BLeitner%2C+Jan%3BLemelle%2C+Laurence%3BLeonard%2C+Ariel%3BLeroux%2C+Hugues%3BLettieri%2C+Robert%3BMarchant%2C+William%3BOgliore%2C+Ryan%3BOng%2C+Wei+Jia%3BPrice%2C+Mark+C%3BSandford%2C+Scott+A%3BTresseras%2C+Juan-Angel+Sans%3BSchmitz%2C+Sylvia%3BSchoonjans%2C+Tom%3BSchreiber%2C+Kate%3BSilversmit%2C+Geert%3BSole%2C+Vicente+A%3BSrama%2C+Ralf%3BStadermann%2C+Frank%3BStephan%2C+Thomas%3BStodolna%2C+Julien%3BSutton%2C+Stephen%3BTrieloff%2C+Mario%3BTsou%2C+Peter%3BTyliszczak%2C+Tolek%3BVekemans%2C+Bart%3BVincze%2C+Laszlo%3Bvon+Korff%2C+Joshua%3BWordsworth%2C+Naomi%3BZevin%2C+Daniel%3BZolensky%2C+Michael+E&rft.aulast=Westphal&rft.aufirst=Andrew&rft.date=2014-08-15&rft.volume=345&rft.issue=6198&rft.spage=786&rft.isbn=&rft.btitle=&rft.title=Science&rft.issn=00368075&rft_id=info:doi/10.1126%2Fscience.1252496 L2 - http://www.sciencemag.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Number of references - 45 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2014-10-30 N1 - CODEN - SCIEAS N1 - SubjectsTermNotLitGenreText - cosmic dust; cosmochemistry; crystal structure; debris; experimental studies; geochemistry; identification; interplanetary dust; laboratory studies; mineral composition; models; physical properties; spectra; Stardust Mission; X-ray diffraction data; X-ray fluorescence spectra DO - http://dx.doi.org/10.1126/science.1252496 ER - TY - JOUR T1 - Age dating of an extensive thrust system on Mercury; implications for the planet's thermal evolution AN - 1637536476; 2014-105122 AB - The tectonic evolution of Mercury is dominated at a global scale by contractional features such as lobate scarps that are widely distributed across the planet. These structures are thought to be the consequence of the secular cooling of Mercury. Therefore, dating these features is essential to place constraints on the timing of planetary cooling, which is important for understanding the thermal evolution of Mercury. In this work, we date an extended thrust system, which we term the Blossom Thrust System, located between 80 degrees E and 100 degrees E, and 30 degrees N and 15 degrees S, and which consists of several individual lobate scarps exhibiting a north-south orientation and a westward vergence. The age of the system was determined using several different methods. Traditional stratigraphic analysis was accompanied by crater counting of units that overlap the thrust system and by using the buffered crater-counting technique, allowing us to determine an absolute model age for the tectonic feature. These complementary methods give consistent results, implying that activity on the thrust ended between 3.5 and 3.7 Ga, depending on the adopted absolute-age model. These data provide an important insight into this portion of Mercury's crust, which may have implications for models of the thermal evolution of the planet as a whole. JF - Special Publication - Geological Society of London AU - Giacomini, Lorenza AU - Massironi, Matteo AU - Marchi, Simone AU - Fassett, C I AU - Di Achille, G AU - Cremonese, Gabriele Y1 - 2014/08/13/ PY - 2014 DA - 2014 Aug 13 SP - 291 EP - 311, 21 PB - Geological Society of London, London VL - 401 IS - 1 SN - 0305-8719, 0305-8719 KW - relative age KW - MESSENGER MDIS KW - statistical analysis KW - cosmochronology KW - Blossom Rupes KW - terranes KW - stress fields KW - deformation KW - thermal history KW - terrestrial planets KW - planets KW - contraction KW - craters KW - Mercury Planet KW - Blossom thrust system KW - surface features KW - Model Production Function KW - tectonics KW - scarps KW - Neukum Production Function KW - fold and thrust belts KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1637536476?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Special+Publication+-+Geological+Society+of+London&rft.atitle=Age+dating+of+an+extensive+thrust+system+on+Mercury%3B+implications+for+the+planet%27s+thermal+evolution&rft.au=Giacomini%2C+Lorenza%3BMassironi%2C+Matteo%3BMarchi%2C+Simone%3BFassett%2C+C+I%3BDi+Achille%2C+G%3BCremonese%2C+Gabriele&rft.aulast=Giacomini&rft.aufirst=Lorenza&rft.date=2014-08-13&rft.volume=401&rft.issue=1&rft.spage=291&rft.isbn=&rft.btitle=&rft.title=Special+Publication+-+Geological+Society+of+London&rft.issn=03058719&rft_id=info:doi/10.1144%2FSP401.21 L2 - http://sp.lyellcollection.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data from The Geological Society, London, London, United Kingdom N1 - Date revised - 2014-01-01 N1 - Number of references - 71 N1 - Document feature - illus. incl. block diags., 2 tables, geol. sketch map N1 - SuppNotes - Online First N1 - Last updated - 2015-02-19 N1 - CODEN - GSLSBW N1 - SubjectsTermNotLitGenreText - Blossom Rupes; Blossom thrust system; contraction; cosmochronology; craters; deformation; fold and thrust belts; Mercury Planet; MESSENGER MDIS; Model Production Function; Neukum Production Function; planets; relative age; scarps; statistical analysis; stress fields; surface features; tectonics; terranes; terrestrial planets; thermal history DO - http://dx.doi.org/10.1144/SP401.21 ER - TY - CPAPER T1 - Natures's Notebook provides phenology observations for NASA Juniper Phenology and Pollen Transport Project T2 - 99th Annual Meeting of the Ecological Society of America (ESA 2014) AN - 1645180266; 6319780 JF - 99th Annual Meeting of the Ecological Society of America (ESA 2014) AU - Luvall, Jeffrey AU - Crimmins, Theresa AU - Sprigg, William AU - Levetin, Estelle AU - Huete, Alfredo AU - Nickovic, Slobodan AU - Prasad, A AU - Vukovic, Ana AU - Van de Water, Peter AU - Budge, Amy AU - Hudspeth, William AU - Bunderson, Landon AU - Geter, Kenneth Y1 - 2014/08/10/ PY - 2014 DA - 2014 Aug 10 KW - Phenology KW - Pollen UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1645180266?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=99th+Annual+Meeting+of+the+Ecological+Society+of+America+%28ESA+2014%29&rft.atitle=Natures%27s+Notebook+provides+phenology+observations+for+NASA+Juniper+Phenology+and+Pollen+Transport+Project&rft.au=Luvall%2C+Jeffrey%3BCrimmins%2C+Theresa%3BSprigg%2C+William%3BLevetin%2C+Estelle%3BHuete%2C+Alfredo%3BNickovic%2C+Slobodan%3BPrasad%2C+A%3BVukovic%2C+Ana%3BVan+de+Water%2C+Peter%3BBudge%2C+Amy%3BHudspeth%2C+William%3BBunderson%2C+Landon%3BGeter%2C+Kenneth&rft.aulast=Luvall&rft.aufirst=Jeffrey&rft.date=2014-08-10&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=99th+Annual+Meeting+of+the+Ecological+Society+of+America+%28ESA+2014%29&rft.issn=&rft_id=info:doi/ L2 - http://eco.confex.com/eco/2014/webprogram/meeting.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-11-30 N1 - Last updated - 2015-01-14 ER - TY - CPAPER T1 - Implementing a decision support system for the Sierra Nevada to monitor, report, and forecast ecological conditions T2 - 99th Annual Meeting of the Ecological Society of America (ESA 2014) AN - 1645179347; 6319749 JF - 99th Annual Meeting of the Ecological Society of America (ESA 2014) AU - Nguyen, Andrew Y1 - 2014/08/10/ PY - 2014 DA - 2014 Aug 10 KW - Artificial intelligence KW - Decision support systems UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1645179347?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=99th+Annual+Meeting+of+the+Ecological+Society+of+America+%28ESA+2014%29&rft.atitle=Implementing+a+decision+support+system+for+the+Sierra+Nevada+to+monitor%2C+report%2C+and+forecast+ecological+conditions&rft.au=Nguyen%2C+Andrew&rft.aulast=Nguyen&rft.aufirst=Andrew&rft.date=2014-08-10&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=99th+Annual+Meeting+of+the+Ecological+Society+of+America+%28ESA+2014%29&rft.issn=&rft_id=info:doi/ L2 - http://eco.confex.com/eco/2014/webprogram/meeting.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-11-30 N1 - Last updated - 2015-01-14 ER - TY - JOUR T1 - A spatially coherent global soil moisture product with improved temporal resolution AN - 1560083105; 2014-069223 AB - Global soil moisture products that are completely independent of any type of ancillary data and solely rely on satellite observations are presented. Additionally, we further develop an existing downscaling technique that enhances the spatial resolution of such products to approximately 11 km. These products are based on internal modules of the Land Parameter Retrieval Model (LPRM), an algorithm that uses the radiative transfer equation to link soil moisture, vegetation optical depth and land surface temperature to observed brightness temperatures. The soil moisture product that is independent of any type of ancillary data uses the internally calculated dielectric constant as a soil moisture proxy. This data product is not influenced by errors associated with coarse-scale global soil property maps or by any other type of forcing (e.g. re-analysis) data and is therefore solely based on satellite microwave observations. The second step builds upon recent developments to increase the spatial resolution of the LPRM retrievals using a smoothing filter downscaling method. With this method we can attain a spatial resolution that can be more useful at the scale of local and regional hydrological studies as well. The steps presented in this paper were applied to observations from the Advanced Microwave Scanning Radiometer-Earth Observing System (AMSR-E). The newly derived data sets were validated using ground-based observations from the International Soil Moisture Network (ISMN). The internally calculated dielectric constant product results in significantly more days with valid retrievals than the original soil moisture data products, in particular over arid regions. The dielectric constant product resulted in similar correlations with in situ data as the original soil moisture data product. Together, these findings demonstrate the usefulness of this new dielectric constant product for the hydrological modeling community and climate studies. A case study on the Australian Fitzroy catchment demonstrated that the downscaled data product has a more detailed spatial description of soil moisture, especially during wet and dry conditions with more pronounced dry and wet regions within the catchment. The increased resolution data products could therefore improve runoff predictions and this study demonstrated the potential added value of a transitioning from a spatial resolution of 56 km toward a higher resolution of 11 km. The hydrological implications of these newly developed data records are not only linked to AMSR-E satellite data, but also to the next generation Soil Moisture Active and Passive (SMAP) mission where a 9 km spatial resolution is the target resolution for satellite soil moisture products. The new data products will not replace the current LPRM products, but will be added to the existing array of data products and will become publicly available through our data portals. Abstract Copyright (2014) Elsevier, B.V. JF - Journal of Hydrology AU - de Jeu, Richard A M AU - Holmes, Thomas R H AU - Parinussa, Robert M AU - Owe, Manfred Y1 - 2014/08/04/ PY - 2014 DA - 2014 Aug 04 SP - 284 EP - 296 PB - Elsevier, Amsterdam VL - 516 SN - 0022-1694, 0022-1694 KW - passive methods KW - International Soil Moisture Network KW - moisture KW - Advanced Microwave Scanning Radiometer-Earth Observing System KW - vegetation KW - temperature KW - ground water KW - microwave methods KW - Lake Maraboon KW - brightness KW - spatial distribution KW - radiometers KW - Queensland Australia KW - drainage basins KW - Australia KW - algorithms KW - soils KW - Fitzroy Basin KW - Australasia KW - Land Parameter Retrieval Model KW - global KW - equations KW - satellite methods KW - dielectric constant KW - models KW - mathematical methods KW - temporal distribution KW - remote sensing KW - 21:Hydrogeology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1560083105?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Hydrology&rft.atitle=A+spatially+coherent+global+soil+moisture+product+with+improved+temporal+resolution&rft.au=de+Jeu%2C+Richard+A+M%3BHolmes%2C+Thomas+R+H%3BParinussa%2C+Robert+M%3BOwe%2C+Manfred&rft.aulast=de+Jeu&rft.aufirst=Richard+A&rft.date=2014-08-04&rft.volume=516&rft.issue=&rft.spage=284&rft.isbn=&rft.btitle=&rft.title=Journal+of+Hydrology&rft.issn=00221694&rft_id=info:doi/10.1016%2Fj.jhydrol.2014.02.015 L2 - http://www.sciencedirect.com/science/journal/00221694 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2014-01-01 N1 - Number of references - 74 N1 - Document feature - illus. incl. 2 tables, sketch maps N1 - Last updated - 2014-11-13 N1 - CODEN - JHYDA7 N1 - SubjectsTermNotLitGenreText - Advanced Microwave Scanning Radiometer-Earth Observing System; algorithms; Australasia; Australia; brightness; dielectric constant; drainage basins; equations; Fitzroy Basin; global; ground water; International Soil Moisture Network; Lake Maraboon; Land Parameter Retrieval Model; mathematical methods; microwave methods; models; moisture; passive methods; Queensland Australia; radiometers; remote sensing; satellite methods; soils; spatial distribution; temperature; temporal distribution; vegetation DO - http://dx.doi.org/10.1016/j.jhydrol.2014.02.015 ER - TY - JOUR T1 - Polygonal ground in the McMurdo dry valleys of Antarctica and its relationship to ice-table depth and the recent Antarctic climate history AN - 1756505154; 2016-006828 AB - The occurrence of dry permafrost overlying ice-rich permafrost is unique to the Antarctic Dry Valleys on Earth and to the high latitudes of Mars. The stability and distribution of this ice are poorly understood and fundamental to understanding the Antarctic climate as far back as a few million years. Polygonal patterned ground is nearly ubiquitous in these regions and is integrally linked to the history of the icy permafrost and climate. We examined the morphology of polygonal ground in Beacon Valley and the Beacon Heights region of the Antarctic Dry Valleys, and show that polygon size is correlated with ice-table depth (the boundary between dry and ice-rich permafrost). A numerical model of seasonal stress in permafrost shows that the ice-table depth is a dominant factor. Remote sensing and field observations of polygon size are therefore important tools for investigating subsurface ice. Polygons are long-lived landforms and observed characteristics indicate no major fluctuations in the ice-table depth during their development. We conclude that the Beacon Valley and Beacon Heights polygons have developed for at least 10 (super 4) years to achieve their present mature-stage morphology and that the ice-table depth has been stable for a similar length of time. JF - Antarctic Science AU - Mellon, Michael T AU - McKay, Christopher P AU - Heldmann, Jennifer L Y1 - 2014/08// PY - 2014 DA - August 2014 SP - 413 EP - 426 PB - Cambridge University Press, Cambridge VL - 26 IS - 4 SN - 0954-1020, 0954-1020 KW - Beacon Heights KW - permafrost KW - Quaternary KW - numerical models KW - periglacial features KW - paleoclimatology KW - ice sheets KW - depth KW - size KW - Cenozoic KW - Antarctica KW - ice table KW - McMurdo dry valleys KW - Victoria Land KW - glacial geology KW - geomorphology KW - polygons KW - Beacon Valley KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1756505154?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Antarctic+Science&rft.atitle=Polygonal+ground+in+the+McMurdo+dry+valleys+of+Antarctica+and+its+relationship+to+ice-table+depth+and+the+recent+Antarctic+climate+history&rft.au=Mellon%2C+Michael+T%3BMcKay%2C+Christopher+P%3BHeldmann%2C+Jennifer+L&rft.aulast=Mellon&rft.aufirst=Michael&rft.date=2014-08-01&rft.volume=26&rft.issue=4&rft.spage=413&rft.isbn=&rft.btitle=&rft.title=Antarctic+Science&rft.issn=09541020&rft_id=info:doi/10.1017%2FS0954102013000710 L2 - http://journals.cambridge.org/bin/bladerunner?30REQEVENT=&REQAUTH=0&500002REQSUB=&REQSTR1=AntarcticScience LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by Institute of Geological and Nuclear Sciences Limited (GNS Science), Lower Hutt, New Zealand N1 - Date revised - 2016-01-01 N1 - Number of references - 44 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2016-01-14 N1 - SubjectsTermNotLitGenreText - Antarctica; Beacon Heights; Beacon Valley; Cenozoic; depth; geomorphology; glacial geology; ice sheets; ice table; McMurdo dry valleys; numerical models; paleoclimatology; periglacial features; permafrost; polygons; Quaternary; size; Victoria Land DO - http://dx.doi.org/10.1017/S0954102013000710 ER - TY - JOUR T1 - Interdecadal changes in snow depth on Arctic sea ice AN - 1637542441; 2014-104838 AB - Snow plays a key role in the growth and decay of Arctic sea ice. In winter, it insulates sea ice from cold air temperatures, slowing sea ice growth. From spring to summer, the albedo of snow determines how much insolation is absorbed by the sea ice and underlying ocean, impacting ice melt processes. Knowledge of the contemporary snow depth distribution is essential for estimating sea ice thickness and volume, and for understanding and modeling sea ice thermodynamics in the changing Arctic. This study assesses spring snow depth distribution on Arctic sea ice using airborne radar observations from Operation IceBridge for 2009-2013. Data were validated using coordinated in situ measurements taken in March 2012 during the Bromine, Ozone, and Mercury Experiment (BROMEX) field campaign. We find a correlation of 0.59 and root-mean-square error of 5.8 cm between the airborne and in situ data. Using this relationship and IceBridge snow thickness products, we compared the recent results with data from the 1937, 1954-1991 Soviet drifting ice stations. The comparison shows thinning of the snowpack, from 35.1 + or - 9.4 to 22.2 + or - 1.9 cm in the western Arctic, and from 32.8 + or - 9.4 to 14.5 + or - 1.9 cm in the Beaufort and Chukchi seas. These changes suggest a snow depth decline of 37 + or - 29% in the western Arctic and 56 + or - 33% in the Beaufort and Chukchi seas. Thinning is negatively correlated with the delayed onset of sea ice freezeup during autumn. Abstract Copyright (2014), . American Geophysical Union. All Rights Reserved. JF - Journal of Geophysical Research: Oceans AU - Webster, Melinda A AU - Rigor, Ignatius G AU - Nghiem, Son V AU - Kurtz, Nathan T AU - Farrell, Sinead L AU - Perovich (CRREL), Donald K AU - Sturm, Matthew Y1 - 2014/08// PY - 2014 DA - August 2014 SP - 5395 EP - 5406 PB - Wiley-Blackwell for American Geophysical Union, Washington, DC VL - 119 IS - 8 SN - 2169-9275, 2169-9275 KW - decadal variations KW - snow cover KW - Arctic region KW - sea ice KW - ice cover KW - salinity KW - climate change KW - temperature KW - spatial distribution KW - ice KW - snow KW - climate effects KW - thickness KW - Arctic Ocean KW - seasonal variations KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1637542441?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research%3A+Oceans&rft.atitle=Interdecadal+changes+in+snow+depth+on+Arctic+sea+ice&rft.au=Webster%2C+Melinda+A%3BRigor%2C+Ignatius+G%3BNghiem%2C+Son+V%3BKurtz%2C+Nathan+T%3BFarrell%2C+Sinead+L%3BPerovich+%28CRREL%29%2C+Donald+K%3BSturm%2C+Matthew&rft.aulast=Webster&rft.aufirst=Melinda&rft.date=2014-08-01&rft.volume=119&rft.issue=8&rft.spage=5395&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Oceans&rft.issn=21699275&rft_id=info:doi/10.1002%2F2014JC009985 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2014-01-01 N1 - Number of references - 40 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2015-02-19 N1 - SubjectsTermNotLitGenreText - Arctic Ocean; Arctic region; climate change; climate effects; decadal variations; ice; ice cover; salinity; sea ice; seasonal variations; snow; snow cover; spatial distribution; temperature; thickness DO - http://dx.doi.org/10.1002/2014JC009985 ER - TY - JOUR T1 - Surface energy budget and thermal inertia at Gale Crater; calculations from ground-based measurements AN - 1629943827; 2014-094244 AB - The analysis of the surface energy budget (SEB) yields insights into soil-atmosphere interactions and local climates, while the analysis of the thermal inertia (I) of shallow subsurfaces provides context for evaluating geological features. Mars orbital data have been used to determine thermal inertias at horizontal scales of approximately 10 (super 4) m (super 2) to approximately 10 (super 7) m (super 2) . Here we use measurements of ground temperature and atmospheric variables by Curiosity to calculate thermal inertias at Gale Crater at horizontal scales of approximately 10 (super 2) m (super 2) . We analyze three sols representing distinct environmental conditions and soil properties, sol 82 at Rocknest (RCK), sol 112 at Point Lake (PL), and sol 139 at Yellowknife Bay (YKB). Our results indicate that the largest thermal inertia I = 452 J m (super -2) K (super -1) s (super -1/2) (SI units used throughout this article) is found at YKB followed by PL with I = 306 and RCK with I = 295. These values are consistent with the expected thermal inertias for the types of terrain imaged by Mastcam and with previous satellite estimations at Gale Crater. We also calculate the SEB using data from measurements by Curiosity's Rover Environmental Monitoring Station and dust opacity values derived from measurements by Mastcam. The knowledge of the SEB and thermal inertia has the potential to enhance our understanding of the climate, the geology, and the habitability of Mars. Abstract Copyright (2014), . The Authors. JF - Journal of Geophysical Research: Planets AU - Martinez, G M AU - Renno, N AU - Fischer, E AU - Borlina, C S AU - Hallet, B AU - Torre Juarez, M AU - Vasavada, A R AU - Ramos, M AU - Hamilton, V AU - Gomez-Elvira, J AU - Haberle, R M Y1 - 2014/08// PY - 2014 DA - August 2014 SP - 1822 EP - 1838 PB - Wiley-Blackwell for American Geophysical Union, Washington, DC VL - 119 IS - 8 SN - 2169-9097, 2169-9097 KW - heat flux KW - thermal inertia KW - impact features KW - numerical analysis KW - techniques KW - Mars KW - landing sites KW - measurement KW - Gale Crater KW - terrestrial planets KW - planets KW - Curiosity Rover KW - impact craters KW - surface energy budget KW - instruments KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1629943827?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research%3A+Planets&rft.atitle=Surface+energy+budget+and+thermal+inertia+at+Gale+Crater%3B+calculations+from+ground-based+measurements&rft.au=Martinez%2C+G+M%3BRenno%2C+N%3BFischer%2C+E%3BBorlina%2C+C+S%3BHallet%2C+B%3BTorre+Juarez%2C+M%3BVasavada%2C+A+R%3BRamos%2C+M%3BHamilton%2C+V%3BGomez-Elvira%2C+J%3BHaberle%2C+R+M&rft.aulast=Martinez&rft.aufirst=G&rft.date=2014-08-01&rft.volume=119&rft.issue=8&rft.spage=1822&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Planets&rft.issn=21699097&rft_id=info:doi/10.1002%2F2014JE004618 L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%292169-9100 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2014-01-01 N1 - Number of references - 50 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2015-02-19 N1 - SubjectsTermNotLitGenreText - Curiosity Rover; Gale Crater; heat flux; impact craters; impact features; instruments; landing sites; Mars; measurement; numerical analysis; planets; surface energy budget; techniques; terrestrial planets; thermal inertia DO - http://dx.doi.org/10.1002/2014JE004618 ER - TY - JOUR T1 - Deep dielectric charging of regolith within the Moon's permanently shadowed regions AN - 1629943718; 2014-094243 AB - Energetic charged particles, such as galactic cosmic rays (GCRs) and solar energetic particles (SEPs), can penetrate deep within the lunar surface, resulting in deep dielectric charging. This charging process depends on the GCR and SEP currents, as well as on the regolith's electrical conductivity and permittivity. In permanently shadowed regions (PSRs) near the lunar poles, the discharging timescales are on the order of a lunation ( approximately 20 days). We present the first predictions for deep dielectric charging of lunar regolith. To estimate the resulting subsurface electric fields, we develop a data-driven, one-dimensional, time-dependent model. For model inputs, we use GCR data from the Cosmic Ray Telescope for the Effects of Radiation on board the Lunar Reconnaissance Orbiter and SEP data from the Electron, Proton, and Alpha Monitor on the Advanced Composition Explorer. We find that during the recent solar minimum, GCRs create persistent electric fields up to approximately 700 V/m. We also find that large SEP events create transient but strong electric fields (> or =10 (super 6) V/m) that may induce dielectric breakdown. Such breakdown would likely result in significant modifications to the physical and chemical properties of the lunar regolith within PSRs. Abstract Copyright (2014), . American Geophysical Union. All Rights Reserved. JF - Journal of Geophysical Research: Planets AU - Jordan, A P AU - Stubbs, T J AU - Wilson, J K AU - Schwadron, N A AU - Spence, H E AU - Joyce, C J Y1 - 2014/08// PY - 2014 DA - August 2014 SP - 1806 EP - 1821 PB - Wiley-Blackwell for American Geophysical Union, Washington, DC VL - 119 IS - 8 SN - 2169-9097, 2169-9097 KW - electrical properties KW - electrical conductivity KW - Moon KW - Lunar Reconnaissance Orbiter KW - dielectric properties KW - solar wind KW - Advanced Composition Explorer KW - cosmic rays KW - regolith KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1629943718?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research%3A+Planets&rft.atitle=Deep+dielectric+charging+of+regolith+within+the+Moon%27s+permanently+shadowed+regions&rft.au=Jordan%2C+A+P%3BStubbs%2C+T+J%3BWilson%2C+J+K%3BSchwadron%2C+N+A%3BSpence%2C+H+E%3BJoyce%2C+C+J&rft.aulast=Jordan&rft.aufirst=A&rft.date=2014-08-01&rft.volume=119&rft.issue=8&rft.spage=1806&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Planets&rft.issn=21699097&rft_id=info:doi/10.1002%2F2014JE004648 L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%292169-9100 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2014-01-01 N1 - Number of references - 66 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2015-02-19 N1 - SubjectsTermNotLitGenreText - Advanced Composition Explorer; cosmic rays; dielectric properties; electrical conductivity; electrical properties; Lunar Reconnaissance Orbiter; Moon; regolith; solar wind DO - http://dx.doi.org/10.1002/2014JE004648 ER - TY - JOUR T1 - Fall, recovery, and characterization of the Novato L6 chondrite breccia AN - 1623256328; 2014-089195 AB - The Novato L6 chondrite fragmental breccia fell in California on 17 October 2012, and was recovered after the Cameras for Allsky Meteor Surveillance (CAMS) project determined the meteor's trajectory between 95 and 46 km altitude. The final fragmentation from 42 to 22 km altitude was exceptionally well documented by digital photographs. The first sample was recovered before rain hit the area. First results from a consortium study of the meteorite's characterization, cosmogenic and radiogenic nuclides, origin, and conditions of the fall are presented. Some meteorites did not retain fusion crust and show evidence of spallation. Before entry, the meteoroid was 35 + or - 5 cm in diameter (mass 80 + or - 35 kg) with a cosmic-ray exposure age of 9 + or - 1 Ma, if it had a one-stage exposure history. A two-stage exposure history is more likely, with lower shielding in the last few Ma. Thermoluminescence data suggest a collision event within the last approximately 0.1 Ma. Novato probably belonged to the class of shocked L chondrites that have a common shock age of 470 Ma, based on the U,Th-He age of 420 + or - 220 Ma. The measured orbits of Novato, Jesenice, and Innisfree are consistent with a proposed origin of these shocked L chondrites in the Gefion asteroid family, perhaps directly via the 5:2 mean-motion resonance with Jupiter. Novato experienced a stronger compaction than did other L6 chondrites of shock-stage S4. Despite this, a freshly broken surface shows a wide range of organic compounds. Abstract Copyright The Meteoritical Society, 2014. JF - Meteoritics & Planetary Science AU - Jenniskens, Peter AU - Rubin, Alan E AU - Yin, Qing-Zhu AU - Sears, Derek W G AU - Sandford, Scott A AU - Zolensky, Michael E AU - Krot, Alexander N AU - Blair, Leigh AU - Kane, Darci AU - Utas, Jason AU - Verish, Robert AU - Friedrich, Jon M AU - Wimpenny, Josh AU - Eppich, Gary R AU - Ziegler, Karen AU - Verosub, Kenneth L AU - Rowland, Douglas J AU - Albers, Jim AU - Gural, Peter S AU - Grigsby, Bryant AU - Fries, Marc D AU - Matson, Robert AU - Johnston, Malcolm AU - Silber, Elizabeth AU - Brown, Peter AU - Yamakawa, Akane AU - Sanborn, Matthew E AU - Laubenstein, Matthias AU - Welten, Kees C AU - Nishiizumi, Kunihiko AU - Meier, Matthias M M AU - Busemann, Henner AU - Clay, Patricia AU - Caffee, Marc W AU - Schmitt-Kopplin, Phillipe AU - Hertkorn, Norbert AU - Glavin, Daniel P AU - Callahan, Michael P AU - Dworkin, Jason P AU - Wu, Qinghao AU - Zare, Richard N AU - Grady, Monica M AU - Verchovsky, Sasha AU - Emel'Yanenko, Vacheslav AU - Naroenkov, Sergey AU - Clark, David L AU - Girten, Beverly AU - Worden, Peter S Y1 - 2014/08// PY - 2014 DA - August 2014 SP - 1388 EP - 1425 PB - Meteoritical Society, Fayetteville, AR VL - 49 IS - 8 SN - 1086-9379, 1086-9379 KW - United States KW - ordinary chondrites KW - fragmentation KW - stony meteorites KW - asteroids KW - isotopes KW - orbits KW - altitude KW - meteoroids KW - L chondrites KW - exposure age KW - stable isotopes KW - magnetic properties KW - California KW - (U-Th)/He KW - meteorites KW - dates KW - absolute age KW - X-ray fluorescence spectra KW - cosmic rays KW - spectra KW - chondrites KW - chemical composition KW - Cameras for Allsky Meteor Surveillance project KW - breccia KW - parent bodies KW - trajectories KW - mechanical properties KW - metamorphism KW - Gefion asteroid family KW - meteorite falls KW - size KW - Novato Meteorite KW - compaction KW - organic compounds KW - magnetic susceptibility KW - petrography KW - shock metamorphism KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1623256328?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Fall%2C+recovery%2C+and+characterization+of+the+Novato+L6+chondrite+breccia&rft.au=Jenniskens%2C+Peter%3BRubin%2C+Alan+E%3BYin%2C+Qing-Zhu%3BSears%2C+Derek+W+G%3BSandford%2C+Scott+A%3BZolensky%2C+Michael+E%3BKrot%2C+Alexander+N%3BBlair%2C+Leigh%3BKane%2C+Darci%3BUtas%2C+Jason%3BVerish%2C+Robert%3BFriedrich%2C+Jon+M%3BWimpenny%2C+Josh%3BEppich%2C+Gary+R%3BZiegler%2C+Karen%3BVerosub%2C+Kenneth+L%3BRowland%2C+Douglas+J%3BAlbers%2C+Jim%3BGural%2C+Peter+S%3BGrigsby%2C+Bryant%3BFries%2C+Marc+D%3BMatson%2C+Robert%3BJohnston%2C+Malcolm%3BSilber%2C+Elizabeth%3BBrown%2C+Peter%3BYamakawa%2C+Akane%3BSanborn%2C+Matthew+E%3BLaubenstein%2C+Matthias%3BWelten%2C+Kees+C%3BNishiizumi%2C+Kunihiko%3BMeier%2C+Matthias+M+M%3BBusemann%2C+Henner%3BClay%2C+Patricia%3BCaffee%2C+Marc+W%3BSchmitt-Kopplin%2C+Phillipe%3BHertkorn%2C+Norbert%3BGlavin%2C+Daniel+P%3BCallahan%2C+Michael+P%3BDworkin%2C+Jason+P%3BWu%2C+Qinghao%3BZare%2C+Richard+N%3BGrady%2C+Monica+M%3BVerchovsky%2C+Sasha%3BEmel%27Yanenko%2C+Vacheslav%3BNaroenkov%2C+Sergey%3BClark%2C+David+L%3BGirten%2C+Beverly%3BWorden%2C+Peter+S&rft.aulast=Jenniskens&rft.aufirst=Peter&rft.date=2014-08-01&rft.volume=49&rft.issue=8&rft.spage=1388&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fmaps.12323 L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2014-01-01 N1 - Number of references - 124 N1 - PubXState - AR N1 - Document feature - illus. incl. 14 tables N1 - Last updated - 2014-11-13 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - (U-Th)/He; absolute age; altitude; asteroids; breccia; California; Cameras for Allsky Meteor Surveillance project; chemical composition; chondrites; compaction; cosmic rays; dates; exposure age; fragmentation; Gefion asteroid family; isotopes; L chondrites; magnetic properties; magnetic susceptibility; mechanical properties; metamorphism; meteorite falls; meteorites; meteoroids; Novato Meteorite; orbits; ordinary chondrites; organic compounds; parent bodies; petrography; shock metamorphism; size; spectra; stable isotopes; stony meteorites; trajectories; United States; X-ray fluorescence spectra DO - http://dx.doi.org/10.1111/maps.12323 ER - TY - JOUR T1 - A multiparameter aerosol classification method and its application to retrievals from spaceborne polarimetry AN - 1566838546; 20720395 AB - Classifying observed aerosols into types (e.g., urban-industrial, biomass burning, mineral dust, maritime) helps to understand aerosol sources, transformations, effects, and feedback mechanisms; to improve accuracy of satellite retrievals; and to quantify aerosol radiative impacts on climate. The number of aerosol parameters retrieved from spaceborne sensors has been growing, from the initial aerosol optical depth (AOD) at one or a few wavelengths to a list that now includes AOD, complex refractive index, single scattering albedo (SSA), and depolarization of backscatter, each at several wavelengths, plus several particle size and shape parameters. Making optimal use of these varied data products requires objective, multidimensional analysis methods. We describe such a method, which makes explicit use of uncertainties in input parameters. It treats an N-parameter retrieved data point and its N-dimensional uncertainty as an extended data point, E. It then uses a modified Mahalanobis distance, D sub(EC), to assign an observation to the class (cluster) C that has minimum D sub(EC) from the point. We use parameters retrieved from the Aerosol Robotic Network (AERONET) to define seven prespecified clusters (pure dust, polluted dust, urban-industrial/developed economy, urban-industrial/developing economy, dark biomass smoke, light biomass smoke, and pure marine), and we demonstrate application of the method to a 5 year record of retrievals from the spaceborne Polarization and Directionality of the Earth's Reflectances 3 (POLDER 3) polarimeter over the island of Crete, Greece. Results show changes of aerosol type at this location in the eastern Mediterranean Sea, which is influenced by a wide variety of aerosol sources. Key Points * The method uses specified classes based on AERONET-retrieved parameters * POLDER aerosol data are assigned to classes using Mahalanobis classification * Aerosol types identified at Crete include dust, marine, urban, and smoke JF - Journal of Geophysical Research: Atmospheres AU - Russell, Philip B AU - Kacenelenbogen, Meloee AU - Livingston, John M AU - Hasekamp, Otto P AU - Burton, Sharon P AU - Schuster, Gregory L AU - Johnson, Matthew S AU - Knobelspiesse, Kirk D AU - Redemann, Jens AU - Ramachandran, S AU - Holben, Brent AD - NASA Ames Research Center, Moffett Field, California, USA. Y1 - 2014/08// PY - 2014 DA - Aug 2014 SP - 9838 EP - 9863 PB - John Wiley & Sons, Ltd., Baffins Lane Chichester W. Sussex PO19 1UD United Kingdom VL - 119 IS - 16 SN - 2169-897X, 2169-897X KW - Pollution Abstracts; Meteorological & Geoastrophysical Abstracts KW - Polarimeters KW - Sensors KW - Combustion products KW - Dust KW - Optical analysis KW - Classification KW - Economics KW - Refractive index KW - MED, Eastern Mediterranean KW - Urban areas KW - Aerosol Robotic Network (AERONET) KW - Aerosols KW - Albedo KW - Biomass KW - Polarization KW - Satellites KW - Smoke KW - Greece, Kriti KW - Optical depth of aerosols KW - Burning KW - POLDER (Polarization and Directionality of Earth's Reflectance) KW - M2 551.510.42:Air Pollution (551.510.42) KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1566838546?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research%3A+Atmospheres&rft.atitle=A+multiparameter+aerosol+classification+method+and+its+application+to+retrievals+from+spaceborne+polarimetry&rft.au=Russell%2C+Philip+B%3BKacenelenbogen%2C+Meloee%3BLivingston%2C+John+M%3BHasekamp%2C+Otto+P%3BBurton%2C+Sharon+P%3BSchuster%2C+Gregory+L%3BJohnson%2C+Matthew+S%3BKnobelspiesse%2C+Kirk+D%3BRedemann%2C+Jens%3BRamachandran%2C+S%3BHolben%2C+Brent&rft.aulast=Russell&rft.aufirst=Philip&rft.date=2014-08-01&rft.volume=119&rft.issue=16&rft.spage=9838&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Atmospheres&rft.issn=2169897X&rft_id=info:doi/10.1002%2F2013JD021411 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-09-01 N1 - Last updated - 2015-03-20 N1 - SubjectsTermNotLitGenreText - Aerosol Robotic Network (AERONET); Smoke; Polarimeters; Albedo; Optical depth of aerosols; Polarization; POLDER (Polarization and Directionality of Earth's Reflectance); Refractive index; Aerosols; Sensors; Combustion products; Biomass; Satellites; Dust; Optical analysis; Classification; Economics; Burning; Urban areas; Greece, Kriti; MED, Eastern Mediterranean DO - http://dx.doi.org/10.1002/2013JD021411 ER - TY - JOUR T1 - Astronaut Medical Selection During the Shuttle Era: 1981-2011 AN - 1560107222; 20588629 AB - Introduction: U.S. astronauts undergo extensive job-related screening and medical examinations prior to selection in order to identify candidates optimally suited for careers in spaceflight. Screening medical standards evolved over many years and after extensive spaceflight experience. These standards assess health-related risks for each astronaut candidate, minimizing the potential for medical impact on future mission success. This document discusses the evolution of the Shuttle-era medical selection standards and the most common reasons for medical disqualification of applicants. Methods: Data for astronaut candidate finalists were compiled from medical records and NASA archives from the period of 1978 to 2004 and were retrospectively reviewed for medically disqualifying conditions. Results: During Shuttle selection cycles, a total of 372 applicants were disqualified due to 425 medical concerns. The most common disqualifying conditions included visual, cardiovascular, psychiatric, and behavioral disorders. During this time period, three major expert panel reviews resulted in refinements and alterations to selection standards for future cycles. Discussion: Shuttle-era screening, testing, and specialist evaluations evolved through periodic expert reviews, evidence-based medicine, and astronaut medical care experience. The Shuttle medical program contributed to the development and implementation of NASA and international standards, longitudinal data collection, improved medical care, and occupational surveillance models. The lessons learned from the Shuttle program serve as the basis for medical selection for the ISS, exploration-class missions, and for those expected to participate in commercial spaceflight. JF - Aviation, Space, and Environmental Medicine AU - Johnston, Smith L AU - Blue, Rebecca S AU - Jennings, Richard T AU - Tarver, William J AU - Gray, Gary W AD - National Aeronautics and Space Administration, Houston, TX, rsblue@utmb.edu Y1 - 2014/08// PY - 2014 DA - Aug 2014 SP - 823 EP - 827 PB - Aerospace Medical Association, 320 S. Henry St. Alexandria VA 22314-3579 United States VL - 85 IS - 8 SN - 0095-6562, 0095-6562 KW - Risk Abstracts; Health & Safety Science Abstracts KW - spaceflight KW - medical standards KW - crewmembers KW - medical screening KW - Risk assessment KW - Data collection KW - Reviews KW - Careers KW - International standardization KW - R2 23060:Medical and environmental health KW - H 1000:Occupational Safety and Health UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1560107222?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ariskabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Aviation%2C+Space%2C+and+Environmental+Medicine&rft.atitle=Astronaut+Medical+Selection+During+the+Shuttle+Era%3A+1981-2011&rft.au=Johnston%2C+Smith+L%3BBlue%2C+Rebecca+S%3BJennings%2C+Richard+T%3BTarver%2C+William+J%3BGray%2C+Gary+W&rft.aulast=Johnston&rft.aufirst=Smith&rft.date=2014-08-01&rft.volume=85&rft.issue=8&rft.spage=823&rft.isbn=&rft.btitle=&rft.title=Aviation%2C+Space%2C+and+Environmental+Medicine&rft.issn=00956562&rft_id=info:doi/10.3357%2FASEM.3968.2014 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-09-01 N1 - Number of references - 11 N1 - Last updated - 2015-04-02 N1 - SubjectsTermNotLitGenreText - Risk assessment; Data collection; Reviews; Careers; International standardization DO - http://dx.doi.org/10.3357/ASEM.3968.2014 ER - TY - JOUR T1 - Flight Attendant Radiation Dose from Solar Particle Events AN - 1560106981; 20588630 AB - Introduction: Research has suggested that work as a flight attendant may be related to increased risk for reproductive health effects. Air cabin exposures that may influence reproductive health include radiation dose from galactic cosmic radiation and solar particle events. This paper describes the assessment of radiation dose accrued during solar particle events as part of a reproductive health study of flight attendants. Methods: Solar storm data were obtained from the National Oceanic and Atmospheric Administration Space Weather Prediction Center list of solar proton events affecting the Earth environment to ascertain storms relevant to the two study periods (1992-1996 and 1999-2001). Radiation dose from exposure to solar energetic particles was estimated using the NAIRAS model in conjunction with galactic cosmic radiation dose calculated using the CARI-6P computer program. Results: Seven solar particle events were determined to have potential for significant radiation exposure, two in the first study period and five in the second study period, and over-lapped with 24,807 flight segments. Absorbed (and effective) flight segment doses averaged 6.5 mu Gy (18 mu Sv) and 3.1 mu Gy (8.3 mu Sv) for the first and second study periods, respectively. Maximum doses were as high as 440 mu Gy (1.2 mSv) and 20 flight segments had doses greater than 190 mu Gy (0.5 mSv). Discussion: During solar particle events, a pregnant flight attendant could potentially exceed the equivalent dose limit to the conceptus of 0.5 mSv in a month recommended by the National Council on Radiation Protection and Measurements. JF - Aviation, Space, and Environmental Medicine AU - Anderson, Jeri L AU - Mertens, Christopher J AU - Grajewski, Barbara AU - Luo, Lian AU - Tseng, Chih-yu AU - Cassinelli, Rick T, II AD - Langley Research Center, National Aeronautics and Space Administration, Hampton, VA; National Institute for Occupational Safety and Health, 4676 Columbia Pkwy, MS R-14, Cincinnati, OH 45226, JLAnderson@cdc.gov Y1 - 2014/08// PY - 2014 DA - Aug 2014 SP - 828 EP - 832 PB - Aerospace Medical Association, 320 S. Henry St. Alexandria VA 22314-3579 United States VL - 85 IS - 8 SN - 0095-6562, 0095-6562 KW - Health & Safety Science Abstracts; Risk Abstracts KW - absorbed dose KW - effective dose KW - conceptus KW - reproductive health KW - Prediction KW - Risk assessment KW - Weather KW - Computer programs KW - Radiation KW - Cosmic radiation KW - Reproduction KW - Particulates KW - Storms KW - Councils KW - Pregnancy KW - R2 23020:Technological risks KW - H 2000:Transportation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1560106981?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ariskabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Aviation%2C+Space%2C+and+Environmental+Medicine&rft.atitle=Flight+Attendant+Radiation+Dose+from+Solar+Particle+Events&rft.au=Anderson%2C+Jeri+L%3BMertens%2C+Christopher+J%3BGrajewski%2C+Barbara%3BLuo%2C+Lian%3BTseng%2C+Chih-yu%3BCassinelli%2C+Rick+T%2C+II&rft.aulast=Anderson&rft.aufirst=Jeri&rft.date=2014-08-01&rft.volume=85&rft.issue=8&rft.spage=828&rft.isbn=&rft.btitle=&rft.title=Aviation%2C+Space%2C+and+Environmental+Medicine&rft.issn=00956562&rft_id=info:doi/10.3357%2FASEM.3989.2014 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-09-01 N1 - Number of references - 22 N1 - Last updated - 2015-04-02 N1 - SubjectsTermNotLitGenreText - Risk assessment; Prediction; Computer programs; Weather; Radiation; Cosmic radiation; Reproduction; Particulates; Councils; Storms; Pregnancy DO - http://dx.doi.org/10.3357/ASEM.3989.2014 ER - TY - JOUR T1 - The flux of kilogram-sized meteoroids from lunar impact monitoring AN - 1560086475; 2014-066256 AB - The flashes from meteoroid impacts on the Moon are useful in determining the flux of impactors with masses as low as a few tens of grams. A routine monitoring program at NASA's Marshall Space Flight Center has recorded over 300 impacts since 2006. A selection of 126 flashes recorded during periods of photometric skies was analyzed, creating the largest and most homogeneous dataset of lunar impact flashes to date. Standard CCD photometric techniques were applied to the video and the luminous energy, kinetic energy, and mass are estimated for each impactor. Shower associations were determined for most of the impactors and a range of luminous efficiencies was considered. The flux to a limiting energy of 2.5 X 10 (super -) 6 kT TNT or 1.05 X 10 (super 7) J is 1.03 X 10 (super -7) km (super -2) h (super -1) and the flux to a limiting mass of 30 g is 6.14 X 10 (super -10) m (super -2) yr (super -1) at the Moon. Comparisons made with measurements and models of the meteoroid population indicate that the flux of objects in this size range is slightly lower (but within the error bars) than flux at this size from the power law distribution determined for the near Earth object and fireball population by Brown et al. (Brown, P.G., Spalding, R., ReVelle, D., Tagliaferri, E., Worden, S. [2002]. Nature 420, 294-296). Size estimates for the crater detected by Lunar Reconnaissance Orbiter from a large impact observed on March 17, 2013 are also briefly discussed. JF - Icarus AU - Suggs, R M AU - Moser, D E AU - Cooke, W J AU - Suggs, R J Y1 - 2014/08// PY - 2014 DA - August 2014 SP - 23 EP - 36 PB - Elsevier, New York, NY VL - 238 SN - 0019-1035, 0019-1035 KW - cratering KW - monitoring KW - power law KW - Moon KW - video methods KW - rates KW - meteorite flux KW - calibration KW - meteoroids KW - impacts KW - lunar craters KW - mass KW - photometry KW - meteor showers KW - impact flashes KW - uncertainty KW - energy KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1560086475?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Icarus&rft.atitle=The+flux+of+kilogram-sized+meteoroids+from+lunar+impact+monitoring&rft.au=Suggs%2C+R+M%3BMoser%2C+D+E%3BCooke%2C+W+J%3BSuggs%2C+R+J&rft.aulast=Suggs&rft.aufirst=R&rft.date=2014-08-01&rft.volume=238&rft.issue=&rft.spage=23&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2014.04.032 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Number of references - 63 N1 - PubXState - NY N1 - Document feature - illus. incl. 3 tables N1 - SuppNotes - Includes appendices N1 - Last updated - 2014-09-05 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - calibration; cratering; energy; impact flashes; impacts; lunar craters; mass; meteor showers; meteorite flux; meteoroids; monitoring; Moon; photometry; power law; rates; uncertainty; video methods DO - http://dx.doi.org/10.1016/j.icarus.2014.04.032 ER - TY - JOUR T1 - Two numerical models designed to reproduce Saturn ring temperatures as measured by Cassini-CIRS AN - 1560086400; 2014-066267 AB - We present two numerical models designed to reproduce the temperatures of the illuminated Saturn rings as measured by the CASSINI-CIRS instrument. Our models are constrained by all available temperature measurements performed on the illuminated rings since SOI. Both models reproduce well the variations of temperature under any illumination and observation geometry. One model is derived from a purely numerical data mining approach, relying on the implementation of a Neural Network that treats the data set globally. This model is used as a test of coverage completeness of the observational parameter space, driving our ability to characterize the rings thermal response. The second (analytical) model is derived using simple physical considerations, by treating the rings as a surface rather than as a collection of individual particles, combined with an empirical anisotropy function to describe the temperature resulting from the Sun's and Saturn's heating. The thermal response of this ring-surface is parameterized by its Bond albedo and emissivity, thermal relaxation time and a set of geometrical parameters quantifying the anisotropy of the temperature measurements depending on azimuth and elevation of the observer with respect to the ring plane, as well as on the solar elevation. Both models provide formulae to predict the ring temperature, that will ease the benchmarking of future physical models against data. The physical model is applied to fit the temperature of tens of different radial slices, allowing us to constrain the combined emissivity and albedo, thermal relaxation time and anisotropy parameters of the ring slabs with the highest radial resolution achieved so far with CIRS. Using for the first time all observation geometries available for illuminated rings, we are confident that our values are as unbiased as possible against observation geometry. The thermal relaxation time appears to be short, a few tens of minutes, and independent of the radial distance across the whole ring. A study of the temperature anisotropy suggests inter-particle shadowing is important in the B ring and in the outer A ring regions. JF - Icarus AU - Altobelli, Nicolas AU - Lopez-Paz, David AU - Pilorz, S AU - Spilker, Linda J AU - Morishima, R AU - Brooks, S AU - Leyrat, C AU - Deau, E AU - Edgington, S AU - Flandes, A Y1 - 2014/08// PY - 2014 DA - August 2014 SP - 205 EP - 220 PB - Elsevier, New York, NY VL - 238 SN - 0019-1035, 0019-1035 KW - albedo KW - numerical models KW - physical models KW - emissivity KW - temperature KW - infrared spectra KW - giant planets KW - geometry KW - Saturn KW - planets KW - planetary rings KW - Cassini-Huygens Mission KW - spectra KW - outer planets KW - neural networks KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1560086400?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Icarus&rft.atitle=Two+numerical+models+designed+to+reproduce+Saturn+ring+temperatures+as+measured+by+Cassini-CIRS&rft.au=Altobelli%2C+Nicolas%3BLopez-Paz%2C+David%3BPilorz%2C+S%3BSpilker%2C+Linda+J%3BMorishima%2C+R%3BBrooks%2C+S%3BLeyrat%2C+C%3BDeau%2C+E%3BEdgington%2C+S%3BFlandes%2C+A&rft.aulast=Altobelli&rft.aufirst=Nicolas&rft.date=2014-08-01&rft.volume=238&rft.issue=&rft.spage=205&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2014.04.031 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Number of references - 33 N1 - PubXState - NY N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2014-09-05 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - albedo; Cassini-Huygens Mission; emissivity; geometry; giant planets; infrared spectra; neural networks; numerical models; outer planets; physical models; planetary rings; planets; Saturn; spectra; temperature DO - http://dx.doi.org/10.1016/j.icarus.2014.04.031 ER - TY - JOUR T1 - Grid-free 2D plasma simulations of the complex interaction between the solar wind and small, near-Earth asteroids AN - 1560085660; 2014-066261 AB - We present results from a new grid-free 2D plasma simulation code applied to a small, unmagnetized body immersed in the streaming solar wind plasma. The body was purposely modeled as an irregular shape in order to examine photoemission and solar wind plasma flow in high detail on the dayside, nightside, terminator and surface-depressed 'pocket' regions. Our objective is to examine the overall morphology of the various plasma interaction regions that form around a small body like a small near-Earth asteroid (NEA). We find that the object obstructs the solar wind flow and creates a trailing wake region downstream, which involves the interplay between surface charging and ambipolar plasma expansion. Photoemission is modeled as a steady outflow of electrons from illuminated portions of the surface, and under direct illumination the surface forms a non-monotonic or "double-sheath" electric potential upstream of the body, which is important for understanding trajectories and equilibria of lofted dust grains in the presence of a complex asteroid geometry. The largest electric fields are found at the terminators, where ambipolar plasma expansion in the body-sized nightside wake merges seamlessly with the thin photoelectric sheath on the dayside. The pocket regions are found to be especially complex, with nearby sunlit regions of positive potential electrically connected to unlit negative potentials and forming adjacent natural electric dipoles. For objects near the surface, we find electrical dissipation times (through collection of local environmental solar wind currents) that vary over at least 5 orders of magnitude: from 39 mu s inside the near-surface photoelectron cloud under direct sunlight to >>1 s inside the particle-depleted nightside wake and shadowed pocket regions. JF - Icarus AU - Zimmerman, Michael I AU - Farrell, W M AU - Poppe, A R Y1 - 2014/08// PY - 2014 DA - August 2014 SP - 77 EP - 85 PB - Elsevier, New York, NY VL - 238 SN - 0019-1035, 0019-1035 KW - near-Earth objects KW - asteroids KW - near-Earth asteroids KW - clastic sediments KW - solar wind KW - electrical field KW - electrostatic properties KW - simulation KW - ions KW - two-dimensional models KW - topography KW - dust KW - sediments KW - photoelectric sheath KW - electrical currents KW - photoelectrons KW - electrons KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1560085660?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Icarus&rft.atitle=Grid-free+2D+plasma+simulations+of+the+complex+interaction+between+the+solar+wind+and+small%2C+near-Earth+asteroids&rft.au=Zimmerman%2C+Michael+I%3BFarrell%2C+W+M%3BPoppe%2C+A+R&rft.aulast=Zimmerman&rft.aufirst=Michael&rft.date=2014-08-01&rft.volume=238&rft.issue=&rft.spage=77&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2014.02.029 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Number of references - 41 N1 - PubXState - NY N1 - SuppNotes - Includes appendices N1 - Last updated - 2014-09-05 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - asteroids; clastic sediments; dust; electrical currents; electrical field; electrons; electrostatic properties; ions; near-Earth asteroids; near-Earth objects; photoelectric sheath; photoelectrons; sediments; simulation; solar wind; topography; two-dimensional models DO - http://dx.doi.org/10.1016/j.icarus.2014.02.029 ER - TY - JOUR T1 - Seasonal variations in Mercury's dayside calcium exosphere AN - 1560085509; 2014-066258 AB - The Mercury Atmospheric and Surface Composition Spectrometer on the MESSENGER spacecraft has observed calcium emission in Mercury's exosphere on a near-daily basis since March 2011. During MESSENGER's primary and first extended missions (March 2011 - March 2013) the dayside calcium exosphere was measured over eight Mercury years. We have simulated these data with a Monte Carlo model of exospheric source processes to show that (a) there is a persistent source of energetic calcium located in the dawn equatorial region, (b) there is a seasonal dependence in the calcium source rate, and (c) there are no obvious year-to-year variations in the near-surface dayside calcium exosphere. JF - Icarus AU - Burger, Matthew H AU - Killen, Rosemary M AU - McClintock, William E AU - Merkel, Aimee W AU - Vervack, Ronald J, Jr AU - Cassidy, Timothy A AU - Sarantos, Menelaos Y1 - 2014/08// PY - 2014 DA - August 2014 SP - 51 EP - 58 PB - Elsevier, New York, NY VL - 238 SN - 0019-1035, 0019-1035 KW - calcium KW - alkaline earth metals KW - equatorial region KW - Mercury Atmospheric and Surface Composition Spectrometer KW - Monte Carlo analysis KW - statistical analysis KW - atmosphere KW - exosphere KW - terrestrial planets KW - planets KW - metals KW - Mercury Planet KW - seasonal variations KW - MESSENGER Mission KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1560085509?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Icarus&rft.atitle=Seasonal+variations+in+Mercury%27s+dayside+calcium+exosphere&rft.au=Burger%2C+Matthew+H%3BKillen%2C+Rosemary+M%3BMcClintock%2C+William+E%3BMerkel%2C+Aimee+W%3BVervack%2C+Ronald+J%2C+Jr%3BCassidy%2C+Timothy+A%3BSarantos%2C+Menelaos&rft.aulast=Burger&rft.aufirst=Matthew&rft.date=2014-08-01&rft.volume=238&rft.issue=&rft.spage=51&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2014.04.049 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Number of references - 27 N1 - PubXState - NY N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2014-09-05 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - alkaline earth metals; atmosphere; calcium; equatorial region; exosphere; Mercury Atmospheric and Surface Composition Spectrometer; Mercury Planet; MESSENGER Mission; metals; Monte Carlo analysis; planets; seasonal variations; statistical analysis; terrestrial planets DO - http://dx.doi.org/10.1016/j.icarus.2014.04.049 ER - TY - JOUR T1 - Age relationships of the Rembrandt Basin and Enterprise Rupes, Mercury AN - 1637529841; 2014-105123 AB - The Rembrandt basin is the largest well-preserved impact feature in the southern hemisphere of Mercury. Its smooth volcanic infill hosts wrinkle ridges and graben, and the entire basin is cross-cut by the Enterprise Rupes scarp system. On the basis of the Model Production Function crater chronology, our analysis shows that the formation of the Rembrandt basin occurred at 3.8+ or -0.1 Ga during the Late Heavy Bombardment, consistent with previous studies. We also find that the smooth plains interior to the basin were emplaced between 3.7 and 3.6+ or -0.1 Ga, indicative of a resurfacing event within the Rembrandt basin that is consistent with the presence of partially buried craters. These youngest plains appear temporally unrelated to basin formation, and so we regard their origin as likely to be due to volcanism. We identify the same chronological relationship for the terrain cross-cut by Enterprise Rupes to the west of the basin. Therefore, volcanic activity affected both the basin and its surroundings, but ended prior to the majority of basin- and regional-scale tectonic deformation. If Enterprise Rupes formed prior to the Rembrandt basin, then regional-scale tectonic activity along this structure might have lasted at least 200 myr. JF - Special Publication - Geological Society of London AU - Ferrari, Sabrina AU - Massironi, Matteo AU - Marchi, Simone AU - Byrne, Paul K AU - Klimczak, Christian AU - Martellato, Elena AU - Cremonese, Gabriele Y1 - 2014/07/29/ PY - 2014 DA - 2014 Jul 29 SP - 159 EP - 172, 14 PB - Geological Society of London, London VL - 401 IS - 1 SN - 0305-8719, 0305-8719 KW - relative age KW - MESSENGER MDIS KW - impact features KW - Caloris Basin KW - resurfacing KW - cosmochronology KW - terranes KW - equations KW - deformation KW - Enterprise Rupes KW - terrestrial planets KW - case studies KW - planets KW - Rembrandt Basin KW - craters KW - volcanism KW - Mercury Planet KW - surface features KW - Model Production Function KW - tectonics KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1637529841?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Special+Publication+-+Geological+Society+of+London&rft.atitle=Age+relationships+of+the+Rembrandt+Basin+and+Enterprise+Rupes%2C+Mercury&rft.au=Ferrari%2C+Sabrina%3BMassironi%2C+Matteo%3BMarchi%2C+Simone%3BByrne%2C+Paul+K%3BKlimczak%2C+Christian%3BMartellato%2C+Elena%3BCremonese%2C+Gabriele&rft.aulast=Ferrari&rft.aufirst=Sabrina&rft.date=2014-07-29&rft.volume=401&rft.issue=1&rft.spage=159&rft.isbn=&rft.btitle=&rft.title=Special+Publication+-+Geological+Society+of+London&rft.issn=03058719&rft_id=info:doi/10.1144%2FSP401.20 L2 - http://sp.lyellcollection.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data from The Geological Society, London, London, United Kingdom N1 - Date revised - 2014-01-01 N1 - Number of references - 65 N1 - Document feature - illus. incl. 1 table, geol. sketch maps N1 - SuppNotes - Online First N1 - Last updated - 2015-02-19 N1 - CODEN - GSLSBW N1 - SubjectsTermNotLitGenreText - Caloris Basin; case studies; cosmochronology; craters; deformation; Enterprise Rupes; equations; impact features; Mercury Planet; MESSENGER MDIS; Model Production Function; planets; relative age; Rembrandt Basin; resurfacing; surface features; tectonics; terranes; terrestrial planets; volcanism DO - http://dx.doi.org/10.1144/SP401.20 ER - TY - JOUR T1 - Effect of free-stream turbulence on boundary layer transition AN - 1555014792; 20322782 AB - This paper is concerned with the transition to turbulence in flat plate boundary layers due to moderately high levels of free-stream turbulence. The turbulence is assumed to be generated by an (idealized) grid and matched asymptotic expansions are used to analyse the resulting flow over a finite thickness flat plate located in the downstream region. The characteristic Reynolds number R lambda based on the mesh size lambda and free-stream velocity is assumed to be large, and the turbulence intensity epsilon is assumed to be small. The asymptotic flow structure is discussed for the generic case where the turbulence Reynolds number epsilon R lambda and the plate thickness and are held fixed (at O(1) and O( lambda ), respectively) in the limit as [Formula] and epsilon arrow right 0. But various limiting cases are considered in order to explain the relevant transition mechanisms. It is argued that there are two types of streak-like structures that can play a role in the transition process: (i) those that appear in the downstream region and are generated by streamwise vorticity in upstream flow and (ii) those that are concentrated near the leading edge and are generated by plate normal vorticity in upstream flow. The former are relatively unaffected by leading edge geometry and are usually referred to as Klebanoff modes while the latter are strongly affected by leading edge geometry and are more streamwise vortex-like in appearance. JF - Philosophical Transactions of the Royal Society of London, Series A: Mathematical, Physical and Engineering Sciences AU - Goldstein, ME AD - NASA Glenn Research Center, , 2100 Brookpark Road, Cleveland, 44135 OH, USA, marvin.e.goldstein@nasa.gov Y1 - 2014/07/28/ PY - 2014 DA - 2014 Jul 28 SP - 20130354 PB - Royal Society of London, 6 Carlton House Terrace London SW1Y 5AG United Kingdom VL - 372 IS - 2020 SN - 1364-503X, 1364-503X KW - Aqualine Abstracts; Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts KW - boundary layer transition KW - free-stream turbulence KW - boundary layer streaks KW - Plate boundaries KW - Reynolds Number KW - Turbulence intensities KW - Boundary Layers KW - Velocity KW - Flow structures KW - turbulence KW - Expansion KW - Boundary layers KW - Vorticity KW - Downstream KW - Reynolds number KW - Structural Engineering KW - Turbulent boundary layer KW - Turbulence KW - Q2 09243:Structure, mechanics and thermodynamics KW - AQ 00006:Sewage KW - SW 0810:General KW - M2 551.511:Mechanics and Thermodynamics of the Atmosphere (551.511) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1555014792?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Philosophical+Transactions+of+the+Royal+Society+of+London%2C+Series+A%3A+Mathematical%2C+Physical+and+Engineering+Sciences&rft.atitle=Effect+of+free-stream+turbulence+on+boundary+layer+transition&rft.au=Goldstein%2C+ME&rft.aulast=Goldstein&rft.aufirst=ME&rft.date=2014-07-28&rft.volume=372&rft.issue=2020&rft.spage=20130354&rft.isbn=&rft.btitle=&rft.title=Philosophical+Transactions+of+the+Royal+Society+of+London%2C+Series+A%3A+Mathematical%2C+Physical+and+Engineering+Sciences&rft.issn=1364503X&rft_id=info:doi/10.1098%2Frsta.2013.0354 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-08-01 N1 - Last updated - 2016-07-07 N1 - SubjectsTermNotLitGenreText - Plate boundaries; Boundary layers; Flow structures; Reynolds number; Turbulence; Turbulent boundary layer; Turbulence intensities; Vorticity; Reynolds Number; Boundary Layers; Velocity; Downstream; Expansion; Structural Engineering; turbulence DO - http://dx.doi.org/10.1098/rsta.2013.0354 ER - TY - CPAPER T1 - Large Plant Growth Chambers: Flying Soon on a Space Station Near You! T2 - 2014 Annual Conference of the American Society for Horticultural Science (ASHS 2014) AN - 1541353250; 6288769 JF - 2014 Annual Conference of the American Society for Horticultural Science (ASHS 2014) AU - Massa, Gioia AU - Morrow, Robert AU - Levine, Howard Y1 - 2014/07/28/ PY - 2014 DA - 2014 Jul 28 KW - Flying KW - Plant growth UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1541353250?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2014+Annual+Conference+of+the+American+Society+for+Horticultural+Science+%28ASHS+2014%29&rft.atitle=Large+Plant+Growth+Chambers%3A+Flying+Soon+on+a+Space+Station+Near+You%21&rft.au=Massa%2C+Gioia%3BMorrow%2C+Robert%3BLevine%2C+Howard&rft.aulast=Massa&rft.aufirst=Gioia&rft.date=2014-07-28&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2014+Annual+Conference+of+the+American+Society+for+Horticultural+Science+%28ASHS+2014%29&rft.issn=&rft_id=info:doi/ L2 - http://ashs.confex.com/ashs/2014/webprogram/start.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-06-27 N1 - Last updated - 2014-06-30 ER - TY - JOUR T1 - The orbit of transneptunian binary Manwe and Thorondor and their upcoming mutual events AN - 1623282011; 2014-071552 AB - A new Hubble Space Telescope observation of the 7:4 resonant transneptunian binary system (385446) Manwe has shown that, of two previously reported solutions for the orbit of its satellite Thorondor, the prograde one is correct. The orbit has a period of 110.18 + or - 0.02 days, semimajor axis of 6670 + or - 40 km, and an eccentricity of 0.563 + or - 0.007. It will be viewable edge-on from the inner Solar System during 2015-2017, presenting opportunities to observe mutual occultation and eclipse events. However, the number of observable events will be small, owing to the long orbital period and expected small sizes of the bodies relative to their separation. This paper presents predictions for events observable from Earth-based telescopes and discusses the associated uncertainties and challenges. JF - Icarus AU - Grundy, W AU - Benecchi, S D AU - Porter, S B AU - Noll, K S Y1 - 2014/07/15/ PY - 2014 DA - 2014 Jul 15 SP - 1 EP - 8 PB - Elsevier, New York, NY VL - 237 SN - 0019-1035, 0019-1035 KW - Earth-based observations KW - telescope methods KW - eclipses KW - orbits KW - Kuiper Belt KW - trans-neptunian objects KW - prediction KW - Manwe Kuiper Belt object KW - observations KW - light curves KW - eccentricity KW - Thorondor Satellite KW - resonance KW - photometry KW - occultation KW - Hubble Space Telescope KW - satellites KW - binary systems KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1623282011?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Icarus&rft.atitle=The+orbit+of+transneptunian+binary+Manwe+and+Thorondor+and+their+upcoming+mutual+events&rft.au=Grundy%2C+W%3BBenecchi%2C+S+D%3BPorter%2C+S+B%3BNoll%2C+K+S&rft.aulast=Grundy&rft.aufirst=W&rft.date=2014-07-15&rft.volume=237&rft.issue=&rft.spage=1&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2014.04.021 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Number of references - 37 N1 - PubXState - NY N1 - Document feature - illus. incl. 5 tables N1 - Last updated - 2014-11-13 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - binary systems; Earth-based observations; eccentricity; eclipses; Hubble Space Telescope; Kuiper Belt; light curves; Manwe Kuiper Belt object; observations; occultation; orbits; photometry; prediction; resonance; satellites; telescope methods; Thorondor Satellite; trans-neptunian objects DO - http://dx.doi.org/10.1016/j.icarus.2014.04.021 ER - TY - JOUR T1 - High water contents in the Siberian cratonic mantle linked to metasomatism; an FTIR study of Udachnaya peridotite xenoliths AN - 1549617358; 2014-060420 AB - The processes that control water distribution in nominally anhydrous minerals from peridotites are twofold. Melt depletion will remove water while metasomatism can potentially add water to these minerals. These processes can lead to a wide range of outcomes in water contents, which in turn could play a role in mantle rheology and long-term cratonic root stability. To examine these complexities, water concentrations in minerals from well-characterized peridotites from the Udachnaya kimberlite in the central Siberian craton were analyzed by FTIR. The peridotites span a complete top to bottom cross-section of typical cratonic lithospheric mantle (2-7GPa and 700-1400 degrees C). Diffusion modeling of water content profiles across olivine grains shows that water loss during decompression is limited to the 100mu m rims of olivines; the cores preserved their mantle water contents. Water contents range from 6 to 323ppm wt H (sub 2) O in olivine, 28-301ppm H (sub 2) O in orthopyroxene (opx), 100-272ppm H (sub 2) O in clinopyroxene (cpx) and 0-23ppm H (sub 2) O in garnet. Melting modeling cannot reproduce the high water contents of cratonic mantle peridotites and any potential partial melting trend must have been erased by later events. The water contents of minerals, however, are correlated with modal abundances of clinopyroxene and garnet, bulk rock FeO, TiO (sub 2) and SiO (sub 2) as well as with light and middle rare earth elements in clinopyroxene and garnet. These relationships are best interpreted as interaction of residual, melt-depleted peridotites with silicate melt, which produced modal and cryptic metasomatism. Importantly, the water enrichment in the Siberian cratonic mantle took place prior to kimberlite magmatism and eruption. Water addition by metasomatism occurred from pressures >4GPa all the way to the base of the cratonic root below central Siberia, but was limited to shallower levels (<5GPa) in the Kaapvaal cratonic lithosphere. The difference in olivine water contents at the deepest levels of the Kaapvaal (<5ppm H (sub 2) O) and Siberian (6-323ppm H (sub 2) O) cratonic roots may be linked to oxygen fugacity and resulting fluid speciation or, alternatively, to reaction with different metasomatic agents. Calculated viscosities for the deepest Udachnaya samples are similar to those inferred for the asthenosphere. If these xenoliths are representative of the deep cratonic lithosphere, water is not as important a parameter as previously thought in the strength of cratonic lithosphere, otherwise the cratonic root beneath Udachnaya would have been delaminated. Alternatively, the metasomatic xenoliths may not be representative of the Siberian cratonic root and kimberlites preferentially sample cratonic mantle lithosphere material located near, and metasomatized by, melt conduits, which served as channels for upward migration of water-rich melts and fluids including kimberlites. In that case, the cratonic root overall still may have relatively low water contents, which in addition to its less metasomatized (more refractory) and thereby buoyant nature, still play a role in making it strong enough to resist delamination by the surrounding asthenosphere. Abstract Copyright (2014) Elsevier, B.V. JF - Geochimica et Cosmochimica Acta AU - Doucet, Luc S AU - Peslier, Anne H AU - Ionov, Dmitri A AU - Brandon, Alan D AU - Golovin, Alexander V AU - Goncharov, Aleksey G AU - Ashchepkov, Igor V Y1 - 2014/07/15/ PY - 2014 DA - 2014 Jul 15 SP - 159 EP - 187 PB - Elsevier, New York, NY VL - 137 SN - 0016-7037, 0016-7037 KW - mineral exploration KW - igneous rocks KW - mantle KW - Russian Federation KW - metasomatism KW - infrared spectra KW - FTIR spectra KW - plutonic rocks KW - mineral composition KW - melting KW - Commonwealth of Independent States KW - water-rock interaction KW - phase equilibria KW - inclusions KW - Siberian Platform KW - water content KW - spectra KW - Asia KW - Udachnaya Pipe KW - xenoliths KW - P-T conditions KW - diamond deposits KW - textures KW - basement KW - Yakutia Russian Federation KW - pipes KW - cratons KW - ultramafics KW - models KW - intrusions KW - kimberlite KW - peridotites KW - crystal chemistry KW - 02C:Geochemistry of rocks, soils, and sediments KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1549617358?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=High+water+contents+in+the+Siberian+cratonic+mantle+linked+to+metasomatism%3B+an+FTIR+study+of+Udachnaya+peridotite+xenoliths&rft.au=Doucet%2C+Luc+S%3BPeslier%2C+Anne+H%3BIonov%2C+Dmitri+A%3BBrandon%2C+Alan+D%3BGolovin%2C+Alexander+V%3BGoncharov%2C+Aleksey+G%3BAshchepkov%2C+Igor+V&rft.aulast=Doucet&rft.aufirst=Luc&rft.date=2014-07-15&rft.volume=137&rft.issue=&rft.spage=159&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2014.04.011 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2014-01-01 N1 - Number of references - 125 N1 - PubXState - NY N1 - Document feature - illus. incl. 3 tables N1 - SuppNotes - Includes appendices N1 - Last updated - 2014-07-31 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - Asia; basement; Commonwealth of Independent States; cratons; crystal chemistry; diamond deposits; FTIR spectra; igneous rocks; inclusions; infrared spectra; intrusions; kimberlite; mantle; melting; metasomatism; mineral composition; mineral exploration; models; P-T conditions; peridotites; phase equilibria; pipes; plutonic rocks; Russian Federation; Siberian Platform; spectra; textures; Udachnaya Pipe; ultramafics; water content; water-rock interaction; xenoliths; Yakutia Russian Federation DO - http://dx.doi.org/10.1016/j.gca.2014.04.011 ER - TY - NEWS T1 - NASA to Launch Carbon Observatory AN - 1544770655 JF - UPI Space Daily AU - Dr. Tony Phillips for "http://science.nasa.gov/">NASA Science News Y1 - 2014/07/03/ PY - 2014 DA - 2014 Jul 03 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1544770655?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apqrl&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=UPI+Space+Daily&rft.atitle=NASA+to+Launch+Carbon+Observatory&rft.au=Dr.+Tony+Phillips+for+%22http%3A%2F%2Fscience.nasa.gov%2F%22%26gt%3BNASA+Science+News&rft.aulast=Dr.+Tony+Phillips+for+%22http%3A%2F%2Fscience.nasa.gov%2F%22%26gt%3BNASA+Science+News&rft.aufirst=&rft.date=2014-07-03&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=UPI+Space+Daily&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Central N1 - Copyright - Copyright (c) by United Press International. All Rights Reserved. N1 - Last updated - 2014-07-14 ER - TY - JOUR T1 - Tidal heating in multilayered terrestrial exoplanets AN - 1849302615; 2016-104709 AB - The internal pattern and overall magnitude of tidal heating for spin-synchronous terrestrial exoplanets from 1 to 2.5 R (sub E) is investigated using a propagator matrix method for a variety of layer structures. Particular attention is paid to ice-silicate hybrid super-Earths, where a significant ice mantle is modeled to rest atop an iron-silicate core, and may or may not contain a liquid water ocean. We find multilayer modeling often increases tidal dissipation relative to a homogeneous model, across multiple orbital periods, due to the ability to include smaller volume low viscosity regions, and the added flexure allowed by liquid layers. Gradations in parameters with depth are explored, such as allowed by the Preliminary Earth Reference Model. For ice-silicate hybrid worlds, dramatically greater dissipation is possible beyond the case of a silicate mantle only, allowing non-negligible tidal activity to extend to greater orbital periods than previously predicted. Surface patterns of tidal heating are found to potentially be useful for distinguishing internal structure. The influence of ice mantle depth and water ocean size and position are shown for a range of forcing frequencies. Rates of orbital circularization are found to be 10-100 times faster than standard predictions for Earth-analog planets when interiors are moderately warmer than the modern Earth, as well as for a diverse range of ice-silicate hybrid super-Earths. Circularization rates are shown to be significantly longer for planets with layers equivalent to an ocean-free modern Earth, as well as for planets with high fractions of either ice or silicate melting. Copyright (Copyright) 2014. The American Astronomical Society. All rights reserved. JF - The Astrophysical Journal AU - Henning, Wade G AU - Hurford, Terry, Jr Y1 - 2014/07/01/ PY - 2014 DA - 2014 Jul 01 EP - Paper no. 30 PB - IOP Publishing for American Astronomical Society, Bristol VL - 789 IS - 1 SN - 0004-637X, 0004-637X KW - water KW - silicates KW - magma oceans KW - sea water KW - extrasolar planets KW - orbits KW - tidal heating KW - partial melting KW - mantle KW - terrestrial planets KW - super-Earths KW - models KW - planets KW - melting KW - viscosity KW - ice KW - planetary interiors KW - heating KW - periodicity KW - core KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849302615?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+Astrophysical+Journal&rft.atitle=Tidal+heating+in+multilayered+terrestrial+exoplanets&rft.au=Henning%2C+Wade+G%3BHurford%2C+Terry%2C+Jr&rft.aulast=Henning&rft.aufirst=Wade&rft.date=2014-07-01&rft.volume=789&rft.issue=1&rft.spage=&rft.isbn=&rft.btitle=&rft.title=The+Astrophysical+Journal&rft.issn=0004637X&rft_id=info:doi/10.1088%2F0004-637X%2F789%2F1%2F30 L2 - http://iopscience.iop.org/0004-637X LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by IOP Publishing Ltd., London, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 214 N1 - Document feature - illus. incl. 2 tables N1 - SuppNotes - Includes appendices N1 - Last updated - 2016-12-16 N1 - SubjectsTermNotLitGenreText - core; extrasolar planets; heating; ice; magma oceans; mantle; melting; models; orbits; partial melting; periodicity; planetary interiors; planets; sea water; silicates; super-Earths; terrestrial planets; tidal heating; viscosity; water DO - http://dx.doi.org/10.1088/0004-637X/789/1/30 ER - TY - JOUR T1 - Stratospheric ozone response to a solar irradiance reduction in a quadrupled CO sub(2) environment AN - 1712568897; PQ0001955319 AB - We used the Goddard Space Flight Center (GSFC) global two-dimensional (2D) atmospheric model to investigate the stratospheric ozone response to a proposed geoengineering activity wherein a reduced top-of-atmosphere (TOA) solar irradiance is imposed to help counteract a quadrupled CO sub(2) atmosphere. This study is similar to the Geoengineering Model Intercomparison Project (GeoMIP) Experiment G1. Three primary simulations were completed with the GSFC 2D model to examine this possibility: (A) a pre-industrial atmosphere with a boundary condition of 285 ppmv CO sub(2) ( piControl ); (B) a base future atmosphere with 1140 ppmv CO sub(2) ( abrupt4xCO2 ); and (C) a perturbed future atmosphere with 1140 ppmv CO sub(2) and a 4% reduction in the TOA total solar irradiance ( G1 ). We found huge ozone enhancements throughout most of the stratosphere (up to 40%) as a result of a large computed temperature decrease (up to 18 K) when CO sub(2) was quadrupled (compare simulation abrupt4xCO2 to piControl ). Further, we found that ozone will additionally increase (up to 5%) throughout most of the stratosphere with total ozone increases of 1-2.5% as a result of a reduction in TOA total solar irradiance (compare simulation G1 to abrupt4xCO2 ). Decreases of atomic oxygen and temperature are the main drivers of this computed ozone enhancement from a reduction in TOA total solar irradiance. Key Points * Quadrupling CO sub(2) strongly perturbs the stratosphere * Solar flux reduction in a quadrupled CO sub(2) atmosphere increases total column ozone * Both quadrupled CO sub(2) and reduced solar flux cools the stratosphere and increases ozone JF - Earth's Future AU - Jackman, Charles H AU - Fleming, Eric L AD - NASA Goddard Space Flight Center, Greenbelt, Maryland, USA. Y1 - 2014/07// PY - 2014 DA - Jul 2014 SP - 331 EP - 340 PB - Wiley Subscription Services, Inc. VL - 2 IS - 7 SN - 2328-4277, 2328-4277 KW - Meteorological & Geoastrophysical Abstracts; Sustainability Science Abstracts; Environment Abstracts KW - Ozone increase KW - Ozone in stratosphere KW - Temperature KW - Simulation KW - Atmosphere KW - Stratosphere KW - Boundary conditions KW - Ozone layer KW - Solar irradiance KW - Atmospheric models KW - Oxygen KW - Numerical simulations KW - Space exploration KW - Carbon dioxide KW - Ozone KW - M2 551.510.42:Air Pollution (551.510.42) KW - M3 1010:Issues in Sustainable Development KW - ENA 01:Air Pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1712568897?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Earth%27s+Future&rft.atitle=Stratospheric+ozone+response+to+a+solar+irradiance+reduction+in+a+quadrupled+CO+sub%282%29+environment&rft.au=Jackman%2C+Charles+H%3BFleming%2C+Eric+L&rft.aulast=Jackman&rft.aufirst=Charles&rft.date=2014-07-01&rft.volume=2&rft.issue=7&rft.spage=331&rft.isbn=&rft.btitle=&rft.title=Earth%27s+Future&rft.issn=23284277&rft_id=info:doi/10.1002%2F2014EF000244 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-09-01 N1 - Last updated - 2015-11-16 N1 - SubjectsTermNotLitGenreText - Ozone increase; Ozone in stratosphere; Numerical simulations; Space exploration; Boundary conditions; Stratosphere; Ozone layer; Atmospheric models; Solar irradiance; Oxygen; Temperature; Simulation; Carbon dioxide; Atmosphere; Ozone DO - http://dx.doi.org/10.1002/2014EF000244 ER - TY - JOUR T1 - Diagenetic origin of nodules in the Sheepbed Member, Yellowknife Bay Formation, Gale Crater, Mars AN - 1629943829; 2014-094135 AB - The Sheepbed member of the Yellowknife Bay formation in Gale crater contains millimeter-scale nodules that represent an array of morphologies unlike those previously observed in sedimentary deposits on Mars. Three types of nodules have been identified in the Sheepbed member in order of decreasing abundance: solid nodules, hollow nodules, and filled nodules, a variant of hollow nodules whose voids have been filled with sulfate minerals. This study uses Mast Camera (Mastcam) and Mars Hand Lens Imager (MAHLI) images from the Mars Science Laboratory Curiosity rover to determine the size, shape, and spatial distribution of the Sheepbed nodules. The Alpha Particle X-Ray Spectrometer (APXS) and ChemCam instruments provide geochemical data to help interpret nodule origins. Based on their physical characteristics, spatial distribution, and composition, the nodules are interpreted as concretions formed during early diagenesis. Several hypotheses are considered for hollow nodule formation including origins as primary or secondary voids. The occurrence of concretions interpreted in the Sheepbed mudstone and in several other sedimentary sequences on Mars suggests that active groundwater systems play an important role in the diagenesis of Martian sedimentary rocks. When concretions are formed during early diagenetic cementation, as interpreted for the Sheepbed nodules, they have the potential to create a taphonomic window favorable for the preservation of Martian organics. Abstract Copyright (2014), . American Geophysical Union. All Rights Reserved. JF - Journal of Geophysical Research: Planets AU - Stack, K M AU - Grotzinger, J P AU - Kah, L C AU - Schmidt, M E AU - Mangold, N AU - Edgett, K S AU - Sumner, D Y AU - Siebach, K L AU - Nachon, M AU - Lee, R AU - Blaney, D L AU - Deflores, L P AU - Edgar, L A AU - Fairen, A G AU - Leshin, L A AU - Maurice, S AU - Oehler, Dorothy Z AU - Rice, M S AU - Wiens, R C Y1 - 2014/07// PY - 2014 DA - July 2014 SP - 1637 EP - 1664 PB - Wiley-Blackwell for American Geophysical Union, Washington, DC VL - 119 IS - 7 SN - 2169-9097, 2169-9097 KW - secondary structures KW - nodules KW - techniques KW - Mars KW - Sheepbed Member KW - life origin KW - ground water KW - Gale Crater KW - sedimentary rocks KW - alpha-ray spectroscopy KW - Curiosity Rover KW - interpretation KW - sedimentary structures KW - mudstone KW - cementation KW - Yellowknife Bay Formation KW - surface water KW - terrestrial planets KW - planets KW - concretions KW - diagenesis KW - spectroscopy KW - clastic rocks KW - aquatic environment KW - instruments KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1629943829?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research%3A+Planets&rft.atitle=Diagenetic+origin+of+nodules+in+the+Sheepbed+Member%2C+Yellowknife+Bay+Formation%2C+Gale+Crater%2C+Mars&rft.au=Stack%2C+K+M%3BGrotzinger%2C+J+P%3BKah%2C+L+C%3BSchmidt%2C+M+E%3BMangold%2C+N%3BEdgett%2C+K+S%3BSumner%2C+D+Y%3BSiebach%2C+K+L%3BNachon%2C+M%3BLee%2C+R%3BBlaney%2C+D+L%3BDeflores%2C+L+P%3BEdgar%2C+L+A%3BFairen%2C+A+G%3BLeshin%2C+L+A%3BMaurice%2C+S%3BOehler%2C+Dorothy+Z%3BRice%2C+M+S%3BWiens%2C+R+C&rft.aulast=Stack&rft.aufirst=K&rft.date=2014-07-01&rft.volume=119&rft.issue=7&rft.spage=1637&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Planets&rft.issn=21699097&rft_id=info:doi/10.1002%2F2014JE004617 L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%292169-9100 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2014-01-01 N1 - Number of references - 74 N1 - PubXState - DC N1 - Document feature - illus. incl. 5 tables N1 - Last updated - 2015-02-19 N1 - SubjectsTermNotLitGenreText - alpha-ray spectroscopy; aquatic environment; cementation; clastic rocks; concretions; Curiosity Rover; diagenesis; Gale Crater; ground water; instruments; interpretation; life origin; Mars; mudstone; nodules; planets; secondary structures; sedimentary rocks; sedimentary structures; Sheepbed Member; spectroscopy; surface water; techniques; terrestrial planets; Yellowknife Bay Formation DO - http://dx.doi.org/10.1002/2014JE004617 ER - TY - JOUR T1 - Lunar interior properties from the GRAIL Mission AN - 1629943799; 2014-094132 AB - The Gravity Recovery and Interior Laboratory (GRAIL) mission has sampled lunar gravity with unprecedented accuracy and resolution. The lunar GM, the product of the gravitational constant G and the mass M, is very well determined. However, uncertainties in the mass and mean density, 3345.56 + or - 0.40 kg/m (super 3) , are limited by the accuracy of G. Values of the spherical harmonic degree-2 gravity coefficients J (sub 2) and C (sub 22) , as well as the Love number k (sub 2) describing lunar degree-2 elastic response to tidal forces, come from two independent analyses of the 3 month GRAIL Primary Mission data at the Jet Propulsion Laboratory and the Goddard Space Flight Center. The two k (sub 2) determinations, with uncertainties of approximately 1%, differ by 1%; the average value is 0.02416 + or - 0.00022 at a 1 month period with reference radius R = 1738 km. Lunar laser ranging (LLR) data analysis determines (C - A)/B and (B - A)/C, where A < B < C are the principal moments of inertia; the flattening of the fluid outer core; the dissipation at its solid boundaries; and the monthly tidal dissipation Q = 37.5 + or - 4. The moment of inertia computation combines the GRAIL-determined J (sub 2) and C (sub 22) with LLR-derived (C - A)/B and (B - A)/C. The normalized mean moment of inertia of the solid Moon is I (sub s) /MR (super 2) = 0.392728 + or - 0.000012. Matching the density, moment, and Love number, calculated models have a fluid outer core with radius of 200-380 km, a solid inner core with radius of 0-280 km and mass fraction of 0-1%, and a deep mantle zone of low seismic shear velocity. The mass fraction of the combined inner and outer core is < or =1.5%. Abstract Copyright (2014), . American Geophysical Union. All Rights Reserved. JF - Journal of Geophysical Research: Planets AU - Williams, James G AU - Konopliv, Alexander S AU - Boggs, Dale H AU - Park, Ryan S AU - Yuan, Dah-Ning AU - Lemoine, Frank G AU - Goossens, Sander AU - Mazarico, Erwan AU - Nimmo, Francis AU - Weber, Renee C AU - Asmar, Sami W AU - Melosh, H Jay AU - Neumann, Gregory A AU - Phillips, Roger J AU - Smith, David E AU - Solomon, Sean C AU - Watkins, Michael M AU - Wieczorek, Mark A AU - Andrews-Hanna, Jeffrey C AU - Head, James W AU - Kiefer, Walter S AU - Matsuyama, Isamu AU - McGovern, Patrick J AU - Taylor, G Jeffrey AU - Zuber, Maria T Y1 - 2014/07// PY - 2014 DA - July 2014 SP - 1546 EP - 1578 PB - Wiley-Blackwell for American Geophysical Union, Washington, DC VL - 119 IS - 7 SN - 2169-9097, 2169-9097 KW - body waves KW - lunar laser ranging KW - Moon KW - mantle KW - elastic waves KW - GRAIL KW - tides KW - outer core KW - Love number KW - gravity field KW - lunar interior KW - velocity KW - core KW - seismic waves KW - S-waves KW - remote sensing KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1629943799?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research%3A+Planets&rft.atitle=Lunar+interior+properties+from+the+GRAIL+Mission&rft.au=Williams%2C+James+G%3BKonopliv%2C+Alexander+S%3BBoggs%2C+Dale+H%3BPark%2C+Ryan+S%3BYuan%2C+Dah-Ning%3BLemoine%2C+Frank+G%3BGoossens%2C+Sander%3BMazarico%2C+Erwan%3BNimmo%2C+Francis%3BWeber%2C+Renee+C%3BAsmar%2C+Sami+W%3BMelosh%2C+H+Jay%3BNeumann%2C+Gregory+A%3BPhillips%2C+Roger+J%3BSmith%2C+David+E%3BSolomon%2C+Sean+C%3BWatkins%2C+Michael+M%3BWieczorek%2C+Mark+A%3BAndrews-Hanna%2C+Jeffrey+C%3BHead%2C+James+W%3BKiefer%2C+Walter+S%3BMatsuyama%2C+Isamu%3BMcGovern%2C+Patrick+J%3BTaylor%2C+G+Jeffrey%3BZuber%2C+Maria+T&rft.aulast=Williams&rft.aufirst=James&rft.date=2014-07-01&rft.volume=119&rft.issue=7&rft.spage=1546&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Planets&rft.issn=21699097&rft_id=info:doi/10.1002%2F2013JE004559 L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%292169-9100 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2014-01-01 N1 - PubXState - DC N1 - Document feature - illus. incl. 14 tables N1 - Last updated - 2015-02-19 N1 - SubjectsTermNotLitGenreText - body waves; core; elastic waves; GRAIL; gravity field; Love number; lunar interior; lunar laser ranging; mantle; Moon; outer core; remote sensing; S-waves; seismic waves; tides; velocity DO - http://dx.doi.org/10.1002/2013JE004559 ER - TY - JOUR T1 - A blueprint for process-based modeling of uncertain hydrological systems; discussion AN - 1623259182; 2014-088943 JF - Water Resources Research AU - Nearing, Grey Y1 - 2014/07// PY - 2014 DA - July 2014 SP - 6260 EP - 6263 PB - American Geophysical Union, Washington, DC VL - 50 IS - 7 SN - 0043-1397, 0043-1397 KW - hydrology KW - numerical models KW - Bayesian analysis KW - Monte Carlo analysis KW - mathematical methods KW - statistical analysis KW - mathematical models KW - equations KW - uncertainty KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1623259182?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Research&rft.atitle=A+blueprint+for+process-based+modeling+of+uncertain+hydrological+systems%3B+discussion&rft.au=Nearing%2C+Grey&rft.aulast=Nearing&rft.aufirst=Grey&rft.date=2014-07-01&rft.volume=50&rft.issue=7&rft.spage=6260&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/10.1002%2F2013WR014812 L2 - http://www.agu.org/journals/wr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2014-01-01 N1 - Number of references - 30 N1 - PubXState - DC N1 - SuppNotes - For reference to original see Montanari, A., Koutsoyiannis, D. Water Resources Research, Vol. 48, W09555, 2012 N1 - Last updated - 2014-11-13 N1 - CODEN - WRERAQ N1 - SubjectsTermNotLitGenreText - Bayesian analysis; equations; hydrology; mathematical methods; mathematical models; Monte Carlo analysis; numerical models; statistical analysis; uncertainty DO - http://dx.doi.org/10.1002/2013WR014812 ER - TY - JOUR T1 - Space Habitation and Microbiology AN - 1566920660 JF - Microbes and Environments AU - AERONAUTICS, NATIONAL AU - ADMINISTRATION (NASA), SPACE AU - Ott, Mark AU - Pierson, Duane AU - AEROSPACE EXPLORATION AGENCY (JAXA), JAPAN AU - Shirakawa, Masaki AU - Tanigaki, Fumiaki AU - Hida, Masamitsu AU - Yamazaki, Takashi AU - Shimazu, Toru AU - Ishioka, Noriaki Y1 - 2014 PY - 2014 DA - 2014 SP - 239 CY - Miyagi PB - Japan Science and Technology Agency VL - 29 IS - 3 SN - 13426311 KW - Biology--Microbiology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1566920660?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Microbes+and+Environments&rft.atitle=Space+Habitation+and+Microbiology&rft.au=AERONAUTICS%2C+NATIONAL%3BADMINISTRATION+%28NASA%29%2C+SPACE%3BOtt%2C+Mark%3BPierson%2C+Duane%3BAEROSPACE+EXPLORATION+AGENCY+%28JAXA%29%2C+JAPAN%3BShirakawa%2C+Masaki%3BTanigaki%2C+Fumiaki%3BHida%2C+Masamitsu%3BYamazaki%2C+Takashi%3BShimazu%2C+Toru%3BIshioka%2C+Noriaki&rft.aulast=AERONAUTICS&rft.aufirst=NATIONAL&rft.date=2014-07-01&rft.volume=29&rft.issue=3&rft.spage=239&rft.isbn=&rft.btitle=&rft.title=Microbes+and+Environments&rft.issn=13426311&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Copyright - Copyright Japan Science and Technology Agency 2014 N1 - Last updated - 2014-10-02 ER - TY - JOUR T1 - Ocean subsurface studies with the CALIPSO spaceborne lidar AN - 1566809578; 2014-078816 AB - The primary objective of the Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations (CALIPSO) mission is to study the climate impact of clouds and aerosols in the atmosphere. However, recent studies have demonstrated that CALIPSO also collects information about the ocean subsurface. The objective of this study is to estimate the ocean subsurface backscatter from CALIPSO lidar measurements. The effects of the lidar receiver's transient response on the attenuated backscatter were first removed in order to obtain the correct attenuated backscatter profile. The empirical relationship between sea surface lidar backscatter and wind speed was used to estimate the theoretical ocean surface backscatter. Then the two-way atmospheric transmittance was estimated as the ratio between the corrected ocean surface backscatter and the theoretical one. The ocean subsurface backscatter was finally derived from the subsurface attenuated backscatter divided by the two-way atmospheric transmittance. Significant relationships between integrated subsurface backscatter and chlorophyll-a concentration and between integrated subsurface backscatter and particulate organic carbon were found, which indicate a potential use of CALIPSO lidar to estimate global chlorophyll-a and particulate organic carbon concentrations. Abstract Copyright (2014), . American Geophysical Union. All Rights Reserved. JF - Journal of Geophysical Research: Oceans AU - Lu, Xiaomei AU - Hu, Yongxiang AU - Trepte, Charles AU - Zeng, Shan AU - Churnside, James H Y1 - 2014/07// PY - 2014 DA - July 2014 SP - 4305 EP - 4317 PB - Wiley-Blackwell for American Geophysical Union, Washington, DC VL - 119 IS - 7 SN - 2169-9275, 2169-9275 KW - clouds KW - sea water KW - laser methods KW - pigments KW - atmosphere KW - satellite methods KW - chlorophyll KW - attenuation KW - organic compounds KW - lidar methods KW - theoretical models KW - aerosols KW - porphyrins KW - meteorology KW - world ocean KW - remote sensing KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1566809578?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research%3A+Oceans&rft.atitle=Ocean+subsurface+studies+with+the+CALIPSO+spaceborne+lidar&rft.au=Lu%2C+Xiaomei%3BHu%2C+Yongxiang%3BTrepte%2C+Charles%3BZeng%2C+Shan%3BChurnside%2C+James+H&rft.aulast=Lu&rft.aufirst=Xiaomei&rft.date=2014-07-01&rft.volume=119&rft.issue=7&rft.spage=4305&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Oceans&rft.issn=21699275&rft_id=info:doi/10.1002%2F2014JC009970 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2014-01-01 N1 - Number of references - 34 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table, sketch map N1 - Last updated - 2015-02-19 N1 - SubjectsTermNotLitGenreText - aerosols; atmosphere; attenuation; chlorophyll; clouds; laser methods; lidar methods; meteorology; organic compounds; pigments; porphyrins; remote sensing; satellite methods; sea water; theoretical models; world ocean DO - http://dx.doi.org/10.1002/2014JC009970 ER - TY - JOUR T1 - Constraining the carbon tetrachloride (CCl sub(4)) budget using its global trend and inter-hemispheric gradient AN - 1562668425; 20595058 AB - Carbon tetrachloride (CCl sub(4)) is a major anthropogenic ozone-depleting substance and greenhouse gas and has been regulated under the Montreal Protocol. However, the near-zero 2007-2012 emissions estimate based on the UNEP reported production and feedstock usage cannot be reconciled with the observed slow decline of atmospheric concentrations and the inter-hemispheric gradient (IHG) for CCl sub(4). Our 3-D model simulations suggest that the observed IHG (1.5 plus or minus 0.2% for 2000-2012) is primarily caused by ongoing current emissions, while ocean and soil losses and stratosphere-troposphere exchange together contribute a small negative gradient ( similar to 0 - -0.3%). Using the observed CCl sub(4) global trend and IHG, we deduce that the mean global emissions for the 2000-2012 period are 39 super(45) sub(34) Gg/yr ( similar to 30% of the peak 1980s emissions) and a corresponding total lifetime of 35 super(32) sub(37) years. JF - Geophysical Research Letters AU - Liang, Qing AU - Newman, Paul A AU - Daniel, John S AU - Reimann, Stefan AU - Hall, Bradley D AU - Dutton, Geoff AU - Kuijpers, Lambert JM AD - Atmospheric Chemistry and Dynamics Laboratory, NASA Goddard Space Flight Center, Greenbelt, Maryland, USA. Y1 - 2014/07// PY - 2014 DA - July 2014 SP - 5307 EP - 5315 PB - American Geophysical Union, 2000 Florida Ave., N.W. Washington DC 20009 United States VL - 41 IS - 14 SN - 0094-8276, 0094-8276 KW - Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Sustainability Science Abstracts; Pollution Abstracts KW - ANW, Canada, Quebec, Montreal KW - Simulation Analysis KW - Climate change KW - Anthropogenic factors KW - Simulation KW - Greenhouse effect KW - Environmental policy KW - Environmental protection KW - International agreements KW - Soil KW - Currents KW - Carbon KW - Oceans KW - Soils KW - Emissions KW - Budgets KW - Greenhouse gases KW - Ozonation KW - Modelling KW - Q2 09262:Methods and instruments KW - P 0000:AIR POLLUTION KW - SW 0810:General KW - M3 1010:Issues in Sustainable Development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1562668425?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=Constraining+the+carbon+tetrachloride+%28CCl+sub%284%29%29+budget+using+its+global+trend+and+inter-hemispheric+gradient&rft.au=Liang%2C+Qing%3BNewman%2C+Paul+A%3BDaniel%2C+John+S%3BReimann%2C+Stefan%3BHall%2C+Bradley+D%3BDutton%2C+Geoff%3BKuijpers%2C+Lambert+JM&rft.aulast=Liang&rft.aufirst=Qing&rft.date=2014-07-01&rft.volume=41&rft.issue=14&rft.spage=5307&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1002%2F2014GL060754 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-09-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Carbon; Soils; Climate change; Anthropogenic factors; Greenhouse effect; Modelling; Soil; Currents; Oceans; Emissions; Simulation; Budgets; Greenhouse gases; Environmental policy; International agreements; Environmental protection; Ozonation; Simulation Analysis; ANW, Canada, Quebec, Montreal DO - http://dx.doi.org/10.1002/2014GL060754 ER - TY - JOUR T1 - Comment on "A blueprint for process-based modeling of uncertain hydrological systems" by Alberto Montanari and Demetris Koutsoyiannis AN - 1560129805; 20548993 AB - Abstract not available JF - Water Resources Research AU - Nearing, Grey AD - NASA Goddard Space Flight Center, Greenbelt, Maryland, USA. Y1 - 2014/07// PY - 2014 DA - July 2014 SP - 6260 EP - 6263 PB - American Geophysical Union, 2000 Florida Ave., N.W. Washington DC 20009 United States VL - 50 IS - 7 SN - 0043-1397, 0043-1397 KW - ASFA 2: Ocean Technology Policy & Non-Living Resources; Water Resources Abstracts; Aqualine Abstracts KW - Hydrologic Models KW - Engineering drawings KW - Water resources KW - Modelling KW - AQ 00006:Sewage KW - SW 0810:General KW - Q2 09161:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1560129805?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Research&rft.atitle=Comment+on+%22A+blueprint+for+process-based+modeling+of+uncertain+hydrological+systems%22+by+Alberto+Montanari+and+Demetris+Koutsoyiannis&rft.au=Nearing%2C+Grey&rft.aulast=Nearing&rft.aufirst=Grey&rft.date=2014-07-01&rft.volume=50&rft.issue=7&rft.spage=6260&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/10.1002%2F2013WR014812 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-09-01 N1 - Last updated - 2016-09-29 N1 - SubjectsTermNotLitGenreText - Engineering drawings; Water resources; Modelling; Hydrologic Models DO - http://dx.doi.org/10.1002/2013WR014812 ER - TY - JOUR T1 - Establishment of Exposure Guidelines for Lead in Spacecraft Drinking Water AN - 1560124983; 20501003 AB - Background: Setting Spacecraft Water Exposure Guidelines (SWEGs) for lead (Pb) in spacecraft drinking water has special challenges related to estimating the increase in blood lead levels (PbB) due to the release of lead to systemic circulation via microgravity-induced bone loss. Methods: The effects on the PbB of lead in drinking water (PbW) and lead released from bones, and changes in lead exposure before, during, and after spaceflight, were evaluated using a physiologically based pharmacokinetic model that incorporated environmental lead exposure on Earth and in flight and included temporarily increased rates of osteoporosis during spaceflight. Results: The model predicts that in 2030 (the earliest potential launch date for a long-duration mission), the average American astronaut would have a PbB of 1.7 mu g [miidot] dl super(-1) at launch and that, while in microgravity, PbB levels would decrease at PbW values less than about 9 mu g times L super(-1) because of reduced exposure within the spacecraft to environmental lead. Astronauts with high concentrations of lead stored in bones could experience increases in PbB due to microgravity-accelerated release of lead from bones. While the resultant in-flight PbB would depend on their preflight bone lead levels, their PbB will not be significantly further elevated (< 1 mu g times dl super(-1)) by consuming water with a PbW of [< or =] 9 mu g times dl super(-1). Selection of a SWEG that would not result in an increase in blood lead is prudent given uncertainties about health effects at low exposures. Conclusion: A SWEG of 9 mu g times L super(-1) would protect astronauts on long-duration spaceflights by ensuring that PbB values will not exceed prelaunch levels. JF - Aviation, Space, and Environmental Medicine AU - Garcia, Hector D AU - Tsuji, Joyce S AU - James, John T AD - Wyle Science, Technology and Engineering Group, 1290 Hercules Dr., Ste. 120, Houston, TX 77058, hector.garcia-1@nasa.gov Y1 - 2014/07// PY - 2014 DA - Jul 2014 SP - 715 EP - 720 PB - Aerospace Medical Association, 320 S. Henry St. Alexandria VA 22314-3579 United States VL - 85 IS - 7 SN - 0095-6562, 0095-6562 KW - Health & Safety Science Abstracts KW - lead KW - SWEG KW - spaceflight KW - blood lead KW - bone lead KW - microgravity KW - PBPK models KW - osteoporosis KW - Bone KW - Guidelines KW - Physiology KW - Osteoporosis KW - Spacecraft KW - Drinking water KW - Pharmacokinetics KW - Blood levels KW - H 2000:Transportation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1560124983?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ahealthsafetyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Aviation%2C+Space%2C+and+Environmental+Medicine&rft.atitle=Establishment+of+Exposure+Guidelines+for+Lead+in+Spacecraft+Drinking+Water&rft.au=Garcia%2C+Hector+D%3BTsuji%2C+Joyce+S%3BJames%2C+John+T&rft.aulast=Garcia&rft.aufirst=Hector&rft.date=2014-07-01&rft.volume=85&rft.issue=7&rft.spage=715&rft.isbn=&rft.btitle=&rft.title=Aviation%2C+Space%2C+and+Environmental+Medicine&rft.issn=00956562&rft_id=info:doi/10.3357%2FASEM.3853.2014 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-09-01 N1 - Number of references - 31 N1 - Last updated - 2015-04-02 N1 - SubjectsTermNotLitGenreText - Bone; Physiology; Guidelines; Osteoporosis; Drinking water; Spacecraft; Pharmacokinetics; Blood levels DO - http://dx.doi.org/10.3357/ASEM.3853.2014 ER - TY - JOUR T1 - Double bright band observations with high-resolution vertically pointing radar, lidar, and profilers AN - 1560123752; 20554523 AB - On 11 May 2010, an elevated temperature inversion associated with an approaching warm front produced two melting layers simultaneously, which resulted in two distinct bright bands as viewed from the ER-2 Doppler radar system, a vertically pointing, coherent X band radar located in Greenbelt, MD. Due to the high temporal resolution of this radar system, an increase in altitude of the melting layer of approximately 1.2 km in the time span of 4 min was captured. The double bright band feature remained evident for approximately 17 min, until the lower atmosphere warmed enough to dissipate the lower melting layer. This case shows the relatively rapid evolution of freezing levels in response to an advancing warm front over a 2 h time period and the descent of an elevated warm air mass with time. Although observations of double bright bands are somewhat rare, the ability to identify this phenomenon is important for rainfall estimation from spaceborne sensors because algorithms employing the restriction of a radar bright band to a constant height, especially when sampling across frontal systems, will limit the ability to accurately estimate rainfall. Key Points * Elevated temperature inversion produced two bright bands simultaneously * Rapid evolution of freezing levels in response to approaching warm front * Identification of double bright bands important for estimating rainfall JF - Journal of Geophysical Research: Atmospheres AU - Emory, Amber E AU - Demoz, Belay AU - Vermeesch, Kevin AU - Hicks, Micheal AD - NASA Goddard Space Flight Center, Greenbelt, Maryland, USA. Y1 - 2014/07// PY - 2014 DA - July 2014 SP - 8201 EP - 8211 PB - John Wiley & Sons, Ltd., Baffins Lane Chichester W. Sussex PO19 1UD United Kingdom VL - 119 IS - 13 SN - 2169-897X, 2169-897X KW - Aqualine Abstracts; Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts KW - Prediction KW - Sensors KW - Rainfall KW - Rainfall estimation KW - Algorithms KW - Temperature inversions KW - Melting layer KW - Profilers KW - Melting KW - Sampling KW - Air masses KW - Weather KW - Temperature KW - Freezing KW - Air Masses KW - Doppler radar KW - Fronts KW - Lidar applications KW - Radar KW - LIDAR KW - Evolution KW - Q2 09242:Observations and measurements at sea KW - M2 551.513:General Circulation (551.513) KW - SW 0810:General KW - AQ 00003:Monitoring and Analysis of Water and Wastes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1560123752?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research%3A+Atmospheres&rft.atitle=Double+bright+band+observations+with+high-resolution+vertically+pointing+radar%2C+lidar%2C+and+profilers&rft.au=Emory%2C+Amber+E%3BDemoz%2C+Belay%3BVermeesch%2C+Kevin%3BHicks%2C+Micheal&rft.aulast=Emory&rft.aufirst=Amber&rft.date=2014-07-01&rft.volume=119&rft.issue=13&rft.spage=8201&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Atmospheres&rft.issn=2169897X&rft_id=info:doi/10.1002%2F2013JD020063 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-09-01 N1 - Last updated - 2016-04-29 N1 - SubjectsTermNotLitGenreText - Prediction; Sensors; Radar; Freezing; Temperature inversions; LIDAR; Profilers; Air masses; Doppler radar; Fronts; Lidar applications; Algorithms; Rainfall estimation; Melting layer; Melting; Weather; Rainfall; Temperature; Air Masses; Sampling; Evolution DO - http://dx.doi.org/10.1002/2013JD020063 ER - TY - JOUR T1 - An examination of the nature of global MODIS cloud regimes AN - 1560104199; 20554519 AB - We introduce global cloud regimes (previously also referred to as "weather states") derived from cloud retrievals that use measurements by the Moderate Resolution Imaging Spectroradiometer (MODIS) instrument aboard the Aqua and Terra satellites. The regimes are obtained by applying clustering analysis on joint histograms of retrieved cloud top pressure and cloud optical thickness. By employing a compositing approach on data sets from satellites and other sources, we examine regime structural and thermodynamical characteristics. We establish that the MODIS cloud regimes tend to form in distinct dynamical and thermodynamical environments and have diverse profiles of cloud fraction and water content. When compositing radiative fluxes from the Clouds and the Earth's Radiant Energy System instrument and surface precipitation from the Global Precipitation Climatology Project, we find that regimes with a radiative warming effect on the atmosphere also produce the largest implied latent heat. Taken as a whole, the results of the study corroborate the usefulness of the cloud regime concept, reaffirm the fundamental nature of the regimes as appropriate building blocks for cloud system classification, clarify their association with standard cloud types, and underscore their distinct radiative and hydrological signatures. Key Points * Cloud systems observed by passive sensors can be decomposed into cloud regimes * The regimes have distinct structures as seen by active sensors * The regimes also have distinct radiative and hydrological signatures JF - Journal of Geophysical Research: Atmospheres AU - Oreopoulos, Lazaros AU - Cho, Nayeong AU - Lee, Dongmin AU - Kato, Seiji AU - Huffman, George J AD - NASA-GSFC, Earth Science Division, Greenbelt, Maryland, USA. Y1 - 2014/07// PY - 2014 DA - July 2014 SP - 8362 EP - 8383 PB - John Wiley & Sons, Ltd., Baffins Lane Chichester W. Sussex PO19 1UD United Kingdom VL - 119 IS - 13 SN - 2169-897X, 2169-897X KW - Environmental Engineering Abstracts (EN); CSA / ASCE Civil Engineering Abstracts (CE); Aerospace & High Technology Database (AH) KW - Clouds KW - Sensors KW - Signatures KW - Hydrology KW - Climatology KW - Atmospheres KW - Precipitation KW - MODIS UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1560104199?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research%3A+Atmospheres&rft.atitle=An+examination+of+the+nature+of+global+MODIS+cloud+regimes&rft.au=Oreopoulos%2C+Lazaros%3BCho%2C+Nayeong%3BLee%2C+Dongmin%3BKato%2C+Seiji%3BHuffman%2C+George+J&rft.aulast=Oreopoulos&rft.aufirst=Lazaros&rft.date=2014-07-01&rft.volume=119&rft.issue=13&rft.spage=8362&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Atmospheres&rft.issn=2169897X&rft_id=info:doi/10.1002%2F2013JD021409 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-10-01 N1 - Last updated - 2017-01-05 DO - http://dx.doi.org/10.1002/2013JD021409 ER - TY - JOUR T1 - International Space Station environmental microbiome - microbial inventories of ISS filter debris AN - 1554944788; 20482906 AB - Despite an expanding array of molecular approaches for detecting microorganisms in a given sample, rapid and robust means of assessing the differential viability of the microbial cells, as a function of phylogenetic lineage, remain elusive. A propidium monoazide (PMA) treatment coupled with downstream quantitative polymerase chain reaction (qPCR) and pyrosequencing analyses was carried out to better understand the frequency, diversity, and distribution of viable microorganisms associated with debris collected from the crew quarters of the International Space Station (ISS). The cultured bacterial counts were more in the ISS samples than cultured fungal population. The rapid molecular analyses targeted to estimate viable population exhibited 5-fold increase in bacterial (qPCR-PMA assay) and 25-fold increase in microbial (adenosine triphosphate assay) burden than the cultured bacterial population. The ribosomal nucleic acid-based identification of cultivated strains revealed the presence of only four to eight bacterial species in the ISS samples, however, the viable bacterial diversity detected by the PMA-pyrosequencing method was far more diverse (12 to 23 bacterial taxa) with the majority consisting of members of actinobacterial genera (Propionibacterium, Corynebacterium) and Staphylococcus. Sample fractions not treated with PMA (inclusive of both live and dead cells) yielded a great abundance of highly diverse bacterial (94 to 118 taxa) and fungal lineages (41 taxa). Even though deep sequencing capability of the molecular analysis widened the understanding about the microbial diversity, the cultivation assay also proved to be essential since some of the spore-forming microorganisms were detected only by the culture-based method. Presented here are the findings of the first comprehensive effort to assess the viability of microbial cells associated with ISS surfaces, and correlate differential viability with phylogenetic affiliation. JF - Applied Microbiology and Biotechnology AU - Venkateswaran, Kasthuri AU - Vaishampayan, Parag AU - Cisneros, Jessica AU - Pierson, Duane L AU - Rogers, Scott O AU - Perry, Jay AD - Biotechnology and Planetary Protection Group, Jet Propulsion Laboratory, California Institute of Technology, M/S 89-2, 4800 Oak Grove Drive, Pasadena, CA, 91109, USA, kjvenkat@jpl.nasa.gov Y1 - 2014/07// PY - 2014 DA - July 2014 SP - 6453 EP - 6466 PB - Springer Science+Business Media, Van Godewijckstraat 30 Dordrecht 3311 GX Netherlands VL - 98 IS - 14 SN - 0175-7598, 0175-7598 KW - Microbiology Abstracts B: Bacteriology; Microbiology Abstracts A: Industrial & Applied Microbiology; Biotechnology and Bioengineering Abstracts KW - Phylogeny KW - Filters KW - Inventories KW - Phorbol esters KW - Staphylococcus KW - Microorganisms KW - ATP KW - Polymerase chain reaction KW - Propionibacterium KW - Corynebacterium KW - A 01450:Environmental Pollution & Waste Treatment KW - W 30900:Methods KW - J 02450:Ecology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1554944788?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+Microbiology+and+Biotechnology&rft.atitle=International+Space+Station+environmental+microbiome+-+microbial+inventories+of+ISS+filter+debris&rft.au=Venkateswaran%2C+Kasthuri%3BVaishampayan%2C+Parag%3BCisneros%2C+Jessica%3BPierson%2C+Duane+L%3BRogers%2C+Scott+O%3BPerry%2C+Jay&rft.aulast=Venkateswaran&rft.aufirst=Kasthuri&rft.date=2014-07-01&rft.volume=98&rft.issue=14&rft.spage=6453&rft.isbn=&rft.btitle=&rft.title=Applied+Microbiology+and+Biotechnology&rft.issn=01757598&rft_id=info:doi/10.1007%2Fs00253-014-5650-6 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-08-01 N1 - Number of references - 58 N1 - Last updated - 2016-08-03 N1 - SubjectsTermNotLitGenreText - Filters; Phylogeny; Inventories; Phorbol esters; Microorganisms; Polymerase chain reaction; ATP; Staphylococcus; Propionibacterium; Corynebacterium DO - http://dx.doi.org/10.1007/s00253-014-5650-6 ER - TY - JOUR T1 - Investigation of pyridine carboxylic acids in CM2 carbonaceous chondrites; potential precursor molecules for ancient coenzymes AN - 1553087658; 2014-062173 AB - The distribution and abundances of pyridine carboxylic acids (including nicotinic acid) in eight CM2 carbonaceous chondrites (ALH 85013, DOM 03183, DOM 08003, EET 96016, LAP 02333, LAP 02336, LEW 85311, and WIS 91600) were investigated by liquid chromatography coupled to UV detection and high resolution Orbitrap mass spectrometry. We find that pyridine monocarboxylic acids are prevalent in CM2-type chondrites and their abundance negatively correlates with the degree of pre-terrestrial aqueous alteration that the meteorite parent body experienced. We also report the first detection of pyridine dicarboxylic acids in carbonaceous chondrites. Additionally, we carried out laboratory studies of proton-irradiated pyridine in carbon dioxide-rich ices (a 1:1 mixture) to serve as a model of the interstellar ice chemistry that may have led to the synthesis of pyridine carboxylic acids. Analysis of the irradiated ice residue shows that a comparable suite of pyridine mono- and dicarboxylic acids was produced, although aqueous alteration may still play a role in the synthesis (and ultimate yield) of these compounds in carbonaceous meteorites. Nicotinic acid is a precursor to nicotinamide adenine dinucleotide, a likely ancient molecule used in cellular metabolism in all of life, and its common occurrence in CM2 chondrites may indicate that meteorites may have been a source of molecules for the emergence of more complex coenzymes on the early Earth. Abstract Copyright (2014) Elsevier, B.V. JF - Geochimica et Cosmochimica Acta AU - Smith, Karen E AU - Callahan, Michael P AU - Gerakines, Perry A AU - Dworkin, Jason P AU - House, Christopher H Y1 - 2014/07/01/ PY - 2014 DA - 2014 Jul 01 SP - 1 EP - 12 PB - Elsevier, New York, NY VL - 136 SN - 0016-7037, 0016-7037 KW - stony meteorites KW - Lewis Cliff Meteorites KW - LaPaz Icefield Meteorites KW - Wisconsin Range Meteorites KW - mass spectra KW - Elephant Moraine Meteorites KW - life origin KW - meteorites KW - Dominion Range Meteorites KW - carboxylic acids KW - ultraviolet spectra KW - spectra KW - chondrites KW - interstellar dust KW - coenzymes KW - acids KW - ALH 85013 KW - WIS 91600 KW - biochemistry KW - liquid chromatograms KW - EET 96016 KW - cosmochemistry KW - LAP 02333 KW - carbonaceous chondrites KW - molecular structure KW - models KW - aqueous alteration KW - organic compounds KW - organic acids KW - cosmic dust KW - Allan Hills Meteorites KW - LEW 85311 KW - Antarctica KW - DOM 03183 KW - chromatograms KW - CM chondrites KW - 05B:Petrology of meteorites and tektites KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1553087658?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Investigation+of+pyridine+carboxylic+acids+in+CM2+carbonaceous+chondrites%3B+potential+precursor+molecules+for+ancient+coenzymes&rft.au=Smith%2C+Karen+E%3BCallahan%2C+Michael+P%3BGerakines%2C+Perry+A%3BDworkin%2C+Jason+P%3BHouse%2C+Christopher+H&rft.aulast=Smith&rft.aufirst=Karen&rft.date=2014-07-01&rft.volume=136&rft.issue=&rft.spage=1&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2014.04.001 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2014-01-01 N1 - Number of references - 61 N1 - PubXState - NY N1 - Document feature - illus. N1 - SuppNotes - Includes appendices N1 - Last updated - 2014-08-14 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - acids; ALH 85013; Allan Hills Meteorites; Antarctica; aqueous alteration; biochemistry; carbonaceous chondrites; carboxylic acids; chondrites; chromatograms; CM chondrites; coenzymes; cosmic dust; cosmochemistry; DOM 03183; Dominion Range Meteorites; EET 96016; Elephant Moraine Meteorites; interstellar dust; LAP 02333; LaPaz Icefield Meteorites; LEW 85311; Lewis Cliff Meteorites; life origin; liquid chromatograms; mass spectra; meteorites; models; molecular structure; organic acids; organic compounds; spectra; stony meteorites; ultraviolet spectra; WIS 91600; Wisconsin Range Meteorites DO - http://dx.doi.org/10.1016/j.gca.2014.04.001 ER - TY - JOUR T1 - Resonant tidal excitation of internal waves in the Earth's fluid core AN - 1553085456; 2014-064492 AB - It has long been speculated that there is a stably stratified layer below the core-mantle boundary, and two recent studies have improved the constraints on the parameters describing this stratification. Here we consider the dynamical implications of this layer using a simplified model. We first show that the stratification in this surface layer has sensitive control over the rate at which tidal energy is transferred to the core. We then show that when the stratification parameters from the recent studies are used in this model, a resonant configuration arrives whereby tidal forces perform elevated rates of work in exciting core flow. Specifically, the internal wave speed derived from the two independent studies (150 and 155 m/s) are in remarkable agreement with the speed (152 m/s) required for excitation of the primary normal mode of oscillation as calculated from full solutions of the Laplace Tidal Equations applied to a reduced-gravity idealized model representing the stratified layer. In evaluating this agreement it is noteworthy that the idealized model assumed may be regarded as the most reduced representation of the stratified dynamics of the layer, in that there are no non-essential dynamical terms in the governing equations assumed. While it is certainly possible that a more realistic treatment may require additional dynamical terms or coupling, it is also clear that this reduced representation includes no freedom for coercing the correlation described. This suggests that one must accept either (1) that tidal forces resonantly excite core flow and this is predicted by a simple model or (2) that either the independent estimates or the dynamical model does not accurately portray the core surface layer and there has simply been an unlikely coincidence between three estimates of a stratification parameter which would otherwise have a broad plausible range. Abstract Copyright (2014) Elsevier, B.V. JF - Physics of the Earth and Planetary Interiors AU - Tyler, Robert H AU - Kuang, Weijia Y1 - 2014/07// PY - 2014 DA - July 2014 SP - 15 EP - 25 PB - Elsevier, Amsterdam VL - 232 SN - 0031-9201, 0031-9201 KW - Earth tides KW - dynamos KW - mantle KW - fluid phase KW - equations KW - Laplace transformations KW - core-mantle boundary KW - layered materials KW - outer core KW - models KW - lower mantle KW - gravity field KW - stratification KW - tidal dissipation KW - mathematical methods KW - core KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1553085456?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Physics+of+the+Earth+and+Planetary+Interiors&rft.atitle=Resonant+tidal+excitation+of+internal+waves+in+the+Earth%27s+fluid+core&rft.au=Tyler%2C+Robert+H%3BKuang%2C+Weijia&rft.aulast=Tyler&rft.aufirst=Robert&rft.date=2014-07-01&rft.volume=232&rft.issue=&rft.spage=15&rft.isbn=&rft.btitle=&rft.title=Physics+of+the+Earth+and+Planetary+Interiors&rft.issn=00319201&rft_id=info:doi/10.1016%2Fj.pepi.2014.03.006 L2 - http://www.sciencedirect.com/science/journal/00319201 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2014-01-01 N1 - Number of references - 27 N1 - Document feature - illus. N1 - SuppNotes - Includes appendices N1 - Last updated - 2014-11-13 N1 - CODEN - PEPIAM N1 - SubjectsTermNotLitGenreText - core; core-mantle boundary; dynamos; Earth tides; equations; fluid phase; gravity field; Laplace transformations; layered materials; lower mantle; mantle; mathematical methods; models; outer core; stratification; tidal dissipation DO - http://dx.doi.org/10.1016/j.pepi.2014.03.006 ER - TY - JOUR T1 - Natural Fe-bearing oxides and sulfates from the Rio Tinto Mars analog site; critical assessment of VNIR reflectance spectroscopy, laser Raman spectroscopy, and XRD as mineral identification tools AN - 1549617956; 2014-058155 AB - We have characterized complex iron- and sulfate-bearing samples from Rio Tinto (Spain) using X-ray diffraction (XRD), visible-near infrared reflectance (VNIR) spectroscopy, and laser Raman spectroscopy (LRS). Samples were collected for this study from the Pena de Hierro region of Rio Tinto because this site represents a natural acidic environment that is a potential analog for such environments on Mars. We report an evaluation of the capabilities of these three techniques in performing detailed mineralogical characterization of potential Mars-like samples from a natural acidic terrestrial environment. Sulfate minerals found in these samples include gypsum, jarosite, and copiapite, and iron hydroxide bearing minerals found include goethite and ferrihydrite. These sulfate and iron hydroxide/oxyhydroxide minerals were detected by XRD, VNIR, and LRS. Minor quartz was identified in some samples by XRD as well, but was not identified using VNIR spectroscopy. Coordinating the results from these three techniques provides a complete picture of the mineralogical composition of the samples. Field instruments were used for this study to mimic the kinds of analyses that could be performed in the field or on martian rovers. JF - American Mineralogist AU - Sobron, Pablo AU - Bishop, Janice L AU - Blake, David F AU - Chen, Bin AU - Rull, Fernando Y1 - 2014/07// PY - 2014 DA - July 2014 SP - 1199 EP - 1205 PB - Mineralogical Society of America, Washington, DC VL - 99 IS - 7 SN - 0003-004X, 0003-004X KW - near-infrared spectra KW - iron oxides KW - X-ray diffraction data KW - sulfates KW - Pena de Hierro KW - Spain KW - Mars KW - Europe KW - Iberian Peninsula KW - Huelva Spain KW - Southern Europe KW - terrestrial planets KW - planets KW - Raman spectra KW - Andalusia Spain KW - Rio Tinto Spain KW - oxides KW - terrestrial comparison KW - spectra KW - reflectance KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1549617956?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Mineralogist&rft.atitle=Natural+Fe-bearing+oxides+and+sulfates+from+the+Rio+Tinto+Mars+analog+site%3B+critical+assessment+of+VNIR+reflectance+spectroscopy%2C+laser+Raman+spectroscopy%2C+and+XRD+as+mineral+identification+tools&rft.au=Sobron%2C+Pablo%3BBishop%2C+Janice+L%3BBlake%2C+David+F%3BChen%2C+Bin%3BRull%2C+Fernando&rft.aulast=Sobron&rft.aufirst=Pablo&rft.date=2014-07-01&rft.volume=99&rft.issue=7&rft.spage=1199&rft.isbn=&rft.btitle=&rft.title=American+Mineralogist&rft.issn=0003004X&rft_id=info:doi/10.2138%2Fam.2014.4595 L2 - http://www.minsocam.org/MSA/AmMin/TOC/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Abstract, copyright, Mineralogical Society of America | Reference includes data from GeoScienceWorld, Alexandria, VA, United States N1 - Date revised - 2014-01-01 N1 - Number of references - 51 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2014-11-13 N1 - CODEN - AMMIAY N1 - SubjectsTermNotLitGenreText - Andalusia Spain; Europe; Huelva Spain; Iberian Peninsula; iron oxides; Mars; near-infrared spectra; oxides; Pena de Hierro; planets; Raman spectra; reflectance; Rio Tinto Spain; Southern Europe; Spain; spectra; sulfates; terrestrial comparison; terrestrial planets; X-ray diffraction data DO - http://dx.doi.org/10.2138/am.2014.4595 ER - TY - JOUR T1 - Titan aerosol analog absorption features produced from aromatics in the far infrared AN - 1549617365; 2014-060402 AB - We present results on the formation of Titan aerosol analogs produced via far-UV irradiation of five aromatic precursors: benzene, naphthalene, pyridine, quinoline and isoquinoline. This is the first reported evidence of far-IR emission features observed below 200 cm (super -1) in laboratory-created Titan aerosols. These laboratory studies were motivated by recent analyses of Cassini Composite Infrared Spectrometer (CIRS) spectra that show a broad aerosol emission feature in the far-IR spectral region centered near 140 cm (super -1) , which is unique to Titan's photochemically-produced aerosol (Anderson, C.M., Samuelson, R.E. [2011]. Icarus 212, 762-778). We find that all three of the aerosol analogs formed from nitrogen-containing aromatics have similar broad emission features near that of the observed CIRS far-IR aerosol spectral feature. In addition, the inclusion of 1.5% methane to that of trace amounts of benzene also gives rise to an aerosol with a weak far-IR emission feature located below 200 cm (super -1) . JF - Icarus AU - Sebree, Joshua A AU - Trainer, Melissa G AU - Loeffler, Mark J AU - Anderson, Carrie M Y1 - 2014/07/01/ PY - 2014 DA - 2014 Jul 01 SP - 146 EP - 152 PB - Elsevier, New York, NY VL - 236 SN - 0019-1035, 0019-1035 KW - icy satellites KW - naphthalene KW - photochemistry KW - benzene KW - nitrogen KW - infrared spectra KW - organic compounds KW - Cassini-Huygens Mission KW - hydrocarbons KW - Titan Satellite KW - polycyclic aromatic hydrocarbons KW - aerosols KW - quinoline KW - spectra KW - satellites KW - far infrared spectra KW - aromatic hydrocarbons KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1549617365?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Icarus&rft.atitle=Titan+aerosol+analog+absorption+features+produced+from+aromatics+in+the+far+infrared&rft.au=Sebree%2C+Joshua+A%3BTrainer%2C+Melissa+G%3BLoeffler%2C+Mark+J%3BAnderson%2C+Carrie+M&rft.aulast=Sebree&rft.aufirst=Joshua&rft.date=2014-07-01&rft.volume=236&rft.issue=&rft.spage=146&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2014.03.039 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Number of references - 21 N1 - PubXState - NY N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2014-07-31 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - aerosols; aromatic hydrocarbons; benzene; Cassini-Huygens Mission; far infrared spectra; hydrocarbons; icy satellites; infrared spectra; naphthalene; nitrogen; organic compounds; photochemistry; polycyclic aromatic hydrocarbons; quinoline; satellites; spectra; Titan Satellite DO - http://dx.doi.org/10.1016/j.icarus.2014.03.039 ER - TY - JOUR T1 - XANES measurements of Cr valence in olivine and their applications to planetary basalts AN - 1549616898; 2014-058174 AB - In this work we present a series of experiments that examine the relationship between oxygen fugacity and Cr valence ratio in olivine grown from a basaltic liquid. These experiments are specifically targeted for an olivine-rich martian basalt composition that was modeled after the bulk chemistry of the meteorite Yamato 980459 (i.e., Y-98). The chromium valence ratio in the olivine crystals was measured with X-ray absorption near edge spectroscopy (XANES) at the Advanced Photon Source, Argonne National Laboratory. Results from the XANES measurements indicate that the ratio of divalent to trivalent Cr in the olivine is not only systematically correlated with f (sub O2) , but is also reflective of the molar Cr (super 3+) /Cr (super 2+) in the silicate liquid from which it grew. In this way, measurements of Cr valence in olivine phenocrysts can yield important information about the oxygen fugacity and molar Cr (super 3+) /Cr (super 2+) of its parental liquid in the absence of a quenched melt phase. Although the results from the experiments presented in this work specifically apply to the Y-98 parental melt, the concepts and XANES analytical techniques discussed within the text present a novel, generalized methodology that may be applicable to any olivine-bearing basalt. Furthermore, the XANES-based measurements are made on a micrometer-scale, thus potential changes of the Cr (super 3+) /Cr (super 2+) in the melt during crystallization could be examined with a great deal of spatial detail. JF - American Mineralogist AU - Bell, Aaron S AU - Burger, Paul V AU - Le, Loan AU - Shearer, Charles K AU - Papike, James J AU - Sutton, Steve R AU - Newville, Matthew AU - Jones, John Y1 - 2014/07// PY - 2014 DA - July 2014 SP - 1404 EP - 1412 PB - Mineralogical Society of America, Washington, DC VL - 99 IS - 7 SN - 0003-004X, 0003-004X KW - silicates KW - volcanic rocks KW - oxygen KW - igneous rocks KW - olivine group KW - Mars KW - equilibrium KW - X-ray spectra KW - fugacity KW - XANES spectra KW - terrestrial planets KW - nesosilicates KW - planets KW - metals KW - olivine KW - basalts KW - orthosilicates KW - valency KW - spectra KW - Eh KW - chromium KW - 01B:Mineralogy of silicates KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1549616898?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Mineralogist&rft.atitle=XANES+measurements+of+Cr+valence+in+olivine+and+their+applications+to+planetary+basalts&rft.au=Bell%2C+Aaron+S%3BBurger%2C+Paul+V%3BLe%2C+Loan%3BShearer%2C+Charles+K%3BPapike%2C+James+J%3BSutton%2C+Steve+R%3BNewville%2C+Matthew%3BJones%2C+John&rft.aulast=Bell&rft.aufirst=Aaron&rft.date=2014-07-01&rft.volume=99&rft.issue=7&rft.spage=1404&rft.isbn=&rft.btitle=&rft.title=American+Mineralogist&rft.issn=0003004X&rft_id=info:doi/10.2138%2Fam.2014.4646 L2 - http://www.minsocam.org/MSA/AmMin/TOC/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Abstract, copyright, Mineralogical Society of America | Reference includes data from GeoScienceWorld, Alexandria, VA, United States N1 - Date revised - 2014-01-01 N1 - Number of references - 33 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2014-07-31 N1 - CODEN - AMMIAY N1 - SubjectsTermNotLitGenreText - basalts; chromium; Eh; equilibrium; fugacity; igneous rocks; Mars; metals; nesosilicates; olivine; olivine group; orthosilicates; oxygen; planets; silicates; spectra; terrestrial planets; valency; volcanic rocks; X-ray spectra; XANES spectra DO - http://dx.doi.org/10.2138/am.2014.4646 ER - TY - NEWS T1 - Airbags Take the Weight in ACTE G-III Loads Tests AN - 1544148752 JF - UPI Space Daily AU - Peter Merlin for Armstrong Flight Research Center Y1 - 2014/07/01/ PY - 2014 DA - 2014 Jul 01 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1544148752?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apqrl&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=UPI+Space+Daily&rft.atitle=Airbags+Take+the+Weight+in+ACTE+G-III+Loads+Tests&rft.au=Peter+Merlin+for+Armstrong+Flight+Research+Center&rft.aulast=Peter+Merlin+for+Armstrong+Flight+Research+Center&rft.aufirst=&rft.date=2014-07-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=UPI+Space+Daily&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Central N1 - Copyright - Copyright (c) by United Press International. All Rights Reserved. N1 - Last updated - 2014-07-10 ER - TY - JOUR T1 - Soil dust aerosols and wind as predictors of seasonal meningitis incidence in Niger. AN - 1542652103; 24633049 AB - Epidemics of meningococcal meningitis are concentrated in sub-Saharan Africa during the dry season, a period when the region is affected by the Harmattan, a dry and dusty northeasterly trade wind blowing from the Sahara into the Gulf of Guinea. We examined the potential of climate-based statistical forecasting models to predict seasonal incidence of meningitis in Niger at both the national and district levels. We used time series of meningitis incidence from 1986 through 2006 for 38 districts in Niger. We tested models based on data that would be readily available in an operational framework, such as climate and dust, population, and the incidence of early cases before the onset of the meningitis season in January-May. Incidence was used as a proxy for immunological state, susceptibility, and carriage in the population. We compared a range of negative binomial generalized linear models fitted to the meningitis data. At the national level, a model using early incidence in December and averaged November-December zonal wind provided the best fit (pseudo-R2 = 0.57), with zonal wind having the greatest impact. A model with surface dust concentration as a predictive variable performed indistinguishably well. At the district level, the best spatiotemporal model included zonal wind, dust concentration, early incidence in December, and population density (pseudo-R2 = 0.41). We showed that wind and dust information and incidence in the early dry season predict part of the year-to-year variability of the seasonal incidence of meningitis at both national and district levels in Niger. Models of this form could provide an early-season alert that wind, dust, and other conditions are potentially conducive to an epidemic. JF - Environmental health perspectives AU - Pérez García-Pando, Carlos AU - Stanton, Michelle C AU - Diggle, Peter J AU - Trzaska, Sylwia AU - Miller, Ron L AU - Perlwitz, Jan P AU - Baldasano, José M AU - Cuevas, Emilio AU - Ceccato, Pietro AU - Yaka, Pascal AU - Thomson, Madeleine C AD - NASA Goddard Institute for Space Studies, New York, New York, USA. Y1 - 2014/07// PY - 2014 DA - July 2014 SP - 679 EP - 686 VL - 122 IS - 7 KW - Aerosols KW - 0 KW - Dust KW - Soil KW - Index Medicus KW - Humans KW - Seasons KW - Linear Models KW - Incidence KW - Models, Statistical KW - Forecasting KW - Wind KW - Niger -- epidemiology KW - Meningitis, Meningococcal -- microbiology KW - Meningitis, Meningococcal -- epidemiology KW - Aerosols -- analysis KW - Dust -- analysis KW - Climate UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1542652103?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+health+perspectives&rft.atitle=Soil+dust+aerosols+and+wind+as+predictors+of+seasonal+meningitis+incidence+in+Niger.&rft.au=P%C3%A9rez+Garc%C3%ADa-Pando%2C+Carlos%3BStanton%2C+Michelle+C%3BDiggle%2C+Peter+J%3BTrzaska%2C+Sylwia%3BMiller%2C+Ron+L%3BPerlwitz%2C+Jan+P%3BBaldasano%2C+Jos%C3%A9+M%3BCuevas%2C+Emilio%3BCeccato%2C+Pietro%3BYaka%2C+Pascal%3BThomson%2C+Madeleine+C&rft.aulast=P%C3%A9rez+Garc%C3%ADa-Pando&rft.aufirst=Carlos&rft.date=2014-07-01&rft.volume=122&rft.issue=7&rft.spage=679&rft.isbn=&rft.btitle=&rft.title=Environmental+health+perspectives&rft.issn=1552-9924&rft_id=info:doi/10.1289%2Fehp.1306640 LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2015-02-23 N1 - Date created - 2014-07-02 N1 - Date revised - 2017-01-14 N1 - SuppNotes - Cited By: BMC Infect Dis. 2012;12:2 [22221583] Int J Infect Dis. 2010 Jul;14(7):e553-9 [20018546] J R Soc Interface. 2013 Feb;10(79):20120814 [23221989] Clin Microbiol Rev. 2000 Jan;13(1):144-66, table of contents [10627495] Trans R Soc Trop Med Hyg. 2000 May-Jun;94(3):251-2 [10974990] Wkly Epidemiol Rec. 2000 Sep 22;75(38):306-9 [11045076] Trans R Soc Trop Med Hyg. 2002 May-Jun;96(3):242-9 [12174770] Clin Infect Dis. 1992 Feb;14(2):515-25 [1554841] Epidemiol Infect. 1995 Feb;114(1):75-92 [7867746] Bull World Health Organ. 1963;28 Suppl:1-114 [14259333] PLoS Med. 2005 Jan;2(1):e6 [15696216] Trop Med Int Health. 2006 Jun;11(6):781-8 [16771998] Vaccine. 2007 Sep 3;25 Suppl 1:A97-100 [17521780] Int J Health Geogr. 2008;7:34 [18597686] PLoS Negl Trop Dis. 2012;6(3):e1577 [22448297] N1 - Last updated - 2017-01-19 DO - http://dx.doi.org/10.1289/ehp.1306640 ER - TY - CPAPER T1 - True Emission Factors for Western Forest Fires: Better Estimation and Usage T2 - 107th Air and Waste Management Association Annual Conference AN - 1562647379; 6305387 JF - 107th Air and Waste Management Association Annual Conference AU - Chatfield, R Y1 - 2014/06/24/ PY - 2014 DA - 2014 Jun 24 KW - Fires KW - Forest fires KW - Emissions KW - Forests UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1562647379?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=107th+Air+and+Waste+Management+Association+Annual+Conference&rft.atitle=True+Emission+Factors+for+Western+Forest+Fires%3A+Better+Estimation+and+Usage&rft.au=Chatfield%2C+R&rft.aulast=Chatfield&rft.aufirst=R&rft.date=2014-06-24&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=107th+Air+and+Waste+Management+Association+Annual+Conference&rft.issn=&rft_id=info:doi/ L2 - http://ace2014.awma.org/wp-content/uploads/2013/08/ACE-2014-Final-Program.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-08-31 N1 - Last updated - 2014-09-18 ER - TY - JOUR T1 - The lunar thermal ice pump AN - 1832633806; 704590-72 AB - It has long been suggested that water ice can exist in extremely cold regions near the lunar poles, where sublimation loss is negligible. The geographic distribution of H-bearing regolith shows only a partial or ambiguous correlation with permanently shadowed areas, thus suggesting that another mechanism may contribute to locally enhancing water concentrations. We show that under suitable conditions, water molecules can be pumped down into the regolith by day-night temperature cycles, leading to an enrichment of H (sub 2) O in excess of the surface concentration. Ideal conditions for pumping are estimated and found to occur where the mean surface temperature is below 105 K and the peak surface temperature is above 120 K. These conditions complement those of the classical cold traps that are roughly defined by peak temperatures lower than 120 K. On the present-day Moon, an estimated 0.8% of the global surface area experiences such temperature variations. Typically, pumping occurs on pole-facing slopes in small areas, but within a few degrees of each pole the equator-facing slopes are preferred. Although pumping of water molecules is expected over cumulatively large areas, the absolute yield of this pump is low; at best, a few percent of the H (sub 2) O delivered to the surface could have accumulated in the near-surface layer in this way. The amount of ice increases with vapor diffusivity and is thus higher in the regolith with large pore spaces. Copyright (Copyright) 2014. The American Astronomical Society. All rights reserved. JF - The Astrophysical Journal AU - Schorghofer, Norbert AU - Aharonson, Oded Y1 - 2014/06/20/ PY - 2014 DA - 2014 Jun 20 EP - Paper no. 169 PB - IOP Publishing for American Astronomical Society, Bristol VL - 788 IS - 2 SN - 0004-637X, 0004-637X KW - water KW - Moon KW - enrichment KW - cyclic processes KW - pumping KW - Polar regions KW - water vapor KW - temperature KW - cold traps KW - sublimation KW - volatiles KW - ice KW - hydrogen KW - permanently shadowed regions KW - low temperature KW - diurnal variations KW - regolith KW - diffusivity KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832633806?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+Astrophysical+Journal&rft.atitle=The+lunar+thermal+ice+pump&rft.au=Schorghofer%2C+Norbert%3BAharonson%2C+Oded&rft.aulast=Schorghofer&rft.aufirst=Norbert&rft.date=2014-06-20&rft.volume=788&rft.issue=2&rft.spage=&rft.isbn=&rft.btitle=&rft.title=The+Astrophysical+Journal&rft.issn=0004637X&rft_id=info:doi/10.1088%2F0004-637X%2F788%2F2%2F169 L2 - http://iopscience.iop.org/0004-637X LA - English DB - GeoRef N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by IOP Publishing Ltd., London, United Kingdom N1 - Number of references - 20 N1 - Document feature - illus. N1 - Last updated - 2017-01-24 N1 - SubjectsTermNotLitGenreText - cold traps; cyclic processes; diffusivity; diurnal variations; enrichment; hydrogen; ice; low temperature; Moon; permanently shadowed regions; Polar regions; pumping; regolith; sublimation; temperature; volatiles; water; water vapor DO - http://dx.doi.org/10.1088/0004-637X/788/2/169 ER - TY - JOUR T1 - Journal of Geophysical Research: Atmospheres AN - 1618132078; 2014-086463 JF - Journal of Geophysical Research: Atmospheres AU - Schmidt, Anja AU - Thordarson, Thorvaldur AU - Oman, Luke D AU - Robock, Alan AU - Self, Stephen Y1 - 2014/06/16/ PY - 2014 DA - 2014 Jun 16 SP - 6636 EP - 6637 PB - Blackwell Wiley for American Geophysical Union, Washington, DC VL - 119 IS - 11 SN - 2169-897X, 2169-897X KW - Laki KW - Western Europe KW - isotopes KW - isotope ratios KW - Arctic region KW - Europe KW - stable isotopes KW - Greenland KW - S-34/S-32 KW - volcanism KW - Grimsvotn KW - eruptions KW - volcanoes KW - sulfur KW - aerosols KW - Iceland KW - 24:Quaternary geology KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1618132078?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research%3A+Atmospheres&rft.atitle=Journal+of+Geophysical+Research%3A+Atmospheres&rft.au=Schmidt%2C+Anja%3BThordarson%2C+Thorvaldur%3BOman%2C+Luke+D%3BRobock%2C+Alan%3BSelf%2C+Stephen&rft.aulast=Schmidt&rft.aufirst=Anja&rft.date=2014-06-16&rft.volume=119&rft.issue=11&rft.spage=6636&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Atmospheres&rft.issn=2169897X&rft_id=info:doi/10.1002%2F2013JD021440 L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%292169-8996 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2014-01-01 N1 - Number of references - 23 N1 - PubXState - DC N1 - SuppNotes - For reference to discussion see Cole-Dai, J., et al., J. Geophys. Res., Atmospheres, Vol. 119, D11, pp. 6629-6635, DOI: 10.1002/2013JD019869, 2014; for reference to the original see Schmidt, A., For reference to the original see Schmidt, A., et al., J. Geophys. Res., Atmospheres, Vol. 117, D23116, DOI: 10.1029/2012JD018414, 2012 N1 - Last updated - 2015-02-19 N1 - SubjectsTermNotLitGenreText - aerosols; Arctic region; eruptions; Europe; Greenland; Grimsvotn; Iceland; isotope ratios; isotopes; Laki; S-34/S-32; stable isotopes; sulfur; volcanism; volcanoes; Western Europe DO - http://dx.doi.org/10.1002/2013JD021440 ER - TY - RPRT T1 - SPACEX TEXAS LAUNCH SITE, CAMERON COUNTY, TEXAS. AN - 1650957329; 16158 AB - PURPOSE: The issuance of licenses and/or experimental permits that would allow Space Exploration Technologies Corp. (SpaceX) to launch the Falcon 9 and Falcon Heavy orbital vertical launch vehicles and a variety of reusable suborbital launch vehicles from a site on privately owned property in Cameron County, Texas is proposed. Proposed operations would consist of up to 12 launches per year with a maximum of two Falcon Heavy launches, through the year 2022. To support these launches, SpaceX has proposed the construction of a vertical launch area and a control center area at a site approximately 17 miles east-northeast of the Brownsville/South Padre Island International Airport and five miles south of South Padre Island. All facilities would be constructed through private funding, on currently undeveloped privately-owned property that would be purchased or leased by SpaceX. In addition, a new underground power line would be installed in the State Highway 4 road right-of-way from the control center area to the vertical launch area. All Falcon 9 and Falcon Heavy launches would be expected to have commercial payloads, including satellites or experimental payloads. In addition to standard payloads, the Falcon 9 and Falcon Heavy may also carry a capsule, such as the SpaceX Dragon capsule. The Falcon 9 and Falcon Heavy use liquid fuels including liquid oxygen and rocket propellant-1. All launch trajectories would be to the east over the Gulf of Mexico and sonic booms generated by launch events would impact the ocean surface 40 miles off the coast and would not be audible on land. The majority of launches would be conducted between the hours of 7:00 a.m. and 7:00 p.m. However, there could be one nighttime launch per year. SpaceX proposes to limit public access at two pre-defined checkpoints on State Highway 4 for up to 15 hours on launch day, with six hours being the closure time for a nominal launch. In addition to the proposed action, this final EIS considers a No Action Alternative. POSITIVE IMPACTS: Authorization would respond to the statutory direction from Congress under the Commercial Space Launch Act to encourage, facilitate, and promote commercial space launch and reentry activities by the private sector in order to strengthen and expand U.S. space transportation infrastructure. NEGATIVE IMPACTS: Construction would result in direct impact to 3.3 acres of wetlands and indirect impact to 2.9 acres of wetlands. The proposed action would displace 15.7 acres of upland habitat and is likely to adversely affect the piping plover and its critical habitat, the northern aplomado falcon, and the jaguarundi and ocelot. The proposed vertical launch and control center areas would likely have a significant impact on visual resources. Three historic properties within the five-mile area of potential influence may be physically damaged from vibrations caused by high noise levels from a Falcon vehicle launch. Nighttime launch operations would result in considerably higher levels of light emissions than those currently present from Boca Chica Village. JF - EPA number: 140162, Final EIS Volume I--392 pages, Volume II--906, Volume III--278 pages, June 6, 2014 PY - 2014 KW - Research and Development KW - Air Quality Assessments KW - Aircraft KW - Aircraft Noise KW - Birds KW - Historic Sites KW - Noise Assessments KW - Section 106 Statements KW - Section 4(f) Statements KW - Spacecraft KW - Visual Resources KW - Wildlife KW - Wildlife Habitat KW - Texas KW - Commercial Space Launch Act of 2011, Compliance KW - Federal Water Pollution Control Act of 1972, Section 404 Permits KW - River and Harbor Act of 1899, Section 10 Permits UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1650957329?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/Environmental+Impact+Statements%3A+Digests&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=report&rft.jtitle=&rft.atitle=&rft.au=&rft.aulast=&rft.aufirst=&rft.date=2014-06-06&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=SPACEX+TEXAS+LAUNCH+SITE%2C+CAMERON+COUNTY%2C+TEXAS.&rft.title=SPACEX+TEXAS+LAUNCH+SITE%2C+CAMERON+COUNTY%2C+TEXAS.&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Name - Department of Transportation, Federal Aviation Administration, Office of Commercial Space Transportation, Washington, District of Columbia; DOT N1 - Date revised - 2015-02-01 N1 - SuppNotes - Final. Preparation date: June 6, 2014 N1 - Last updated - 2015-02-04 ER - TY - RPRT T1 - MARS 2020 MISSION, BREVARD COUNTY, FLORIDA. AN - 16378140; 16159 AB - PURPOSE: A mission to Mars to conduct comprehensive science on the surface of Mars and to demonstrate technological advancements in the exploration of Mars is proposed. This draft EIS for the Mars 2020 mission is a tiered document under the Mars Exploration Program (MEP). The proposed mission would employ new in situ scientific instrumentation in order to seek signs of past life, select and store a promising suite of samples in a returnable cache, and demonstrate technology for future robotic and human exploration of Mars. NASAs proposed Mars 2020 mission would use the proven design and technology developed for the Mars Science Laboratory (MSL) rover Curiosity that arrived on Mars in August 2012. Like Curiosity, the proposed Mars 2020 rover would be powered by a Multi- Mission Radioisotope Thermoelectric Generator (MMRTG). NASA would select a scientifically important landing site based upon data from past and current missions. This second tiered draft EIS analyzes three action alternatives and one no action alternative. Under Alternative 1, the Proposed Action and NASAs Preferred Alternative, NASA proposes to continue preparations for and implement the Mars 2020 mission to the surface of Mars. The proposed Mars 2020 spacecraft would be launched on board an expendable launch vehicle from Kennedy Space Center (KSC) or Cape Canaveral Air Force Station (CCAFS), Brevard County, Florida, during a 20-day launch opportunity that runs from July through August 2020, and would be inserted into a trajectory toward Mars. Should the mission be delayed, the proposed Mars 2020 mission would be launched during the next available launch opportunity in August through September 2022. The rover proposed for the Mars 2020 mission would utilize a radioisotope power system to continually provide heat and electrical power to the rovers battery so that the rover could operate and conduct science on the surface of Mars. Under Alternative 2, NASA would discontinue preparations for the Proposed Action (Alternative 1) and implement an alternative configuration for the Mars 2020 mission to Mars. The Mars 2020 rover would utilize solar power as its source electrical power to operate and conduct science on the surface of Mars. The alternative Mars 2020 spacecraft would still be launched on board an expendable launch vehicle from KSC or CCAFS, Brevard County, Florida, during a 20-day launch opportunity that runs from July through August 2020, and would be inserted into a trajectory toward Mars. Like Alternative 1, should the mission be delayed, the proposed Mars 2020 mission would be launched during the next available launch opportunity in August through September 2022. Under Alternative 3, NASA would discontinue preparations for the Proposed Action (Alternative 1) and implement an alternative configuration for the Mars 2020 mission to Mars. The Mars 2020 rover would utilize solar power as its source of electrical power to operate and conduct science on the surface of Mars. The rover thermal environment would be augmented by the thermal output from Light-Weight Radioisotope Heater Units (LWRHUs) to help keep the rovers onboard systems at proper operating temperatures. The Mars 2020 spacecraft would still be launched on board an expendable launch vehicle from KSC or CCAFS, Brevard County, Florida, during a 20-day launch opportunity that runs from July through August 2020, and would be inserted into a trajectory toward Mars. Should the mission be delayed, the proposed Mars 2020 mission would be launched during the next available launch opportunity in August through September 2022. POSITIVE IMPACTS: The Mars 2020 mission would: (1) characterize the processes that formed and modified the geologic record within a field exploration area on Mars selected for evidence of an astrobiologically relevant ancient environment and geologic diversity; (2) perform astrobiologically-relevant investigations on the geologic materials at the landing site; (3) assemble a returnable cache of samples for possible future return to Earth; and (4) contribute to the preparation for human exploration of Mars by making significant progress towards filling at least one major Strategic Knowledge Gap. NEGATIVE IMPACTS: All action alternatives would include exhaust emissions from the launch vehicle which would include short-term impacts on air quality from the exhaust cloud at and near the launch pad, and short-term acidic deposition on the vegetation and surface water bodies at and near the launch complex. Some short-term ozone degradation would occur along the flight path of the vehicle as the vehicle passes through the stratosphere and deposits ozone-depleting chemicals (primarily hydrogen chloride) from its solid rocket boosters. Non-radiological accidents could occur during preparation for and launch of the Mars 2020 spacecraft at the KSC or CCAFS. JF - EPA number: 140163, Draft EIS--314 pages, June 6, 2014 PY - 2014 KW - Research and Development KW - Aerospace KW - International Programs KW - Research KW - Radioactive Substances KW - Military Facilities (Air Force) KW - Spacecraft KW - Solar Energy KW - Air Quality KW - Mars KW - Florida KW - Kennedy Space Center KW - Cape Canaveral Air Force Station UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16378140?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/Environmental+Impact+Statements%3A+Digests&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=report&rft.jtitle=&rft.atitle=&rft.au=&rft.aulast=&rft.aufirst=&rft.date=2014-06-06&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=MARS+2020+MISSION%2C+BREVARD+COUNTY%2C+FLORIDA.&rft.title=MARS+2020+MISSION%2C+BREVARD+COUNTY%2C+FLORIDA.&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Name - National Aeronautics and Space Administration, Science Mission Directorate, Washington, District of Columbia; NASA N1 - Date revised - 2015-02-01 N1 - SuppNotes - Draft. Preparation date: June 6, 2014 N1 - Last updated - 2015-02-04 ER - TY - NEWS T1 - May the Force (Shoes) Be With You AN - 1532873815 JF - UPI Space Daily AU - Andrea Dunn and Charles W. Lloyd for NASA News Y1 - 2014/06/06/ PY - 2014 DA - 2014 Jun 06 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1532873815?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apqrl&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=UPI+Space+Daily&rft.atitle=May+the+Force+%28Shoes%29+Be+With+You&rft.au=Andrea+Dunn+and+Charles+W.+Lloyd+for+NASA+News&rft.aulast=Andrea+Dunn+and+Charles+W.+Lloyd+for+NASA+News&rft.aufirst=&rft.date=2014-06-06&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=UPI+Space+Daily&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Central N1 - Copyright - Copyright (c) by United Press International. All Rights Reserved. N1 - Last updated - 2014-06-06 ER - TY - NEWS T1 - NASA Airborne Research Focuses on Andean Volcanoes AN - 1531441060 JF - UPI Space Daily AU - Beth Hagenauer for Armstrong Flight Research Center Y1 - 2014/06/02/ PY - 2014 DA - 2014 Jun 02 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1531441060?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apqrl&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=UPI+Space+Daily&rft.atitle=NASA+Airborne+Research+Focuses+on+Andean+Volcanoes&rft.au=Beth+Hagenauer+for+Armstrong+Flight+Research+Center&rft.aulast=Beth+Hagenauer+for+Armstrong+Flight+Research+Center&rft.aufirst=&rft.date=2014-06-02&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=UPI+Space+Daily&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Central N1 - Copyright - Copyright (c) by United Press International. All Rights Reserved. N1 - Last updated - 2014-06-03 ER - TY - JOUR T1 - Data Management in Astrobiology: Challenges and Opportunities for an Interdisciplinary Community AN - 1837302675; PQ0003746411 AB - Data management and sharing are growing concerns for scientists and funding organizations throughout the world. Funding organizations are implementing requirements for data management plans, while scientists are establishing new infrastructures for data sharing. One of the difficulties is sharing data among a diverse set of research disciplines. Astrobiology is a unique community of researchers, containing over 110 different disciplines. The current study reports the results of a survey of data management practices among scientists involved in the astrobiology community and the NASA Astrobiology Institute (NAI) in particular. The survey was administered over a 2-month period in the first half of 2013. Fifteen percent of the NAI community responded (n=114), and additional (n=80) responses were collected from members of an astrobiology Listserv. The results of the survey show that the astrobiology community shares many of the same concerns for data sharing as other groups. The benefits of data sharing are acknowledged by many respondents, but barriers to data sharing remain, including lack of acknowledgement, citation, time, and institutional rewards. Overcoming technical, institutional, and social barriers to data sharing will be a challenge into the future. Key Words: Data management-Data sharing-Data preservation. Astrobiology 14, 451-461. JF - Astrobiology AU - Aydinoglu, Arsev Umur AU - Suomela, Todd AU - Malone, Jim AD - NASA Astrobiology Institute, NASA Ames Research Center, Moffett Field, California. Y1 - 2014/06// PY - 2014 DA - June 2014 SP - 451 EP - 461 PB - Mary Ann Liebert, Inc., 2 Madison Ave Larchmont NY 10538-1962 United States VL - 14 IS - 6 SN - 1531-1074, 1531-1074 KW - ASFA 1: Biological Sciences & Living Resources; Ecology Abstracts KW - Data processing KW - Barriers KW - Financing KW - Reinforcement KW - Preservation KW - Environment management KW - D 04040:Ecosystem and Ecology Studies KW - Q1 08604:Stock assessment and management UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1837302675?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Astrobiology&rft.atitle=Data+Management+in+Astrobiology%3A+Challenges+and+Opportunities+for+an+Interdisciplinary+Community&rft.au=Aydinoglu%2C+Arsev+Umur%3BSuomela%2C+Todd%3BMalone%2C+Jim&rft.aulast=Aydinoglu&rft.aufirst=Arsev&rft.date=2014-06-01&rft.volume=14&rft.issue=6&rft.spage=451&rft.isbn=&rft.btitle=&rft.title=Astrobiology&rft.issn=15311074&rft_id=info:doi/10.1089%2Fast.2013.1127 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-11-01 N1 - Number of references - 18 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Barriers; Financing; Environment management; Data processing; Reinforcement; Preservation DO - http://dx.doi.org/10.1089/ast.2013.1127 ER - TY - JOUR T1 - Surface albedo darkening from wildfires in northern sub-Saharan Africa AN - 1709175123; PQ0001859763 AB - Northern sub-Saharan Africa (NSSA) has a wide variety of climate zones or biomes, where albedo dynamics are highly coupled with vegetation dynamics and fire disturbances. Quantifying surface albedo variations due to fire disturbances on time scales of several months to several years is complex and is made worse by lack of accurate and spatially consistent surface albedo data. Here, we estimate the surface albedo effect from wildfires in different land cover types in the NSSA region using Moderate Resolution Imaging Spectroradiometer (MODIS) multi-year observational data (2003-11). The average decrease in albedo after fires at the scale of 1 km MODIS footprint is -0.002 02 + or - 0.000 03 for woody savanna and -0.002 22 + or - 0.000 03 for savanna. These two land cover types together account for > 86% of the total MODIS fire count between 2003 and 2011. We found that only a small fraction of the pixels ([< or =, slanted] 10%) burn in two successive years and about 47% had any fire recurrence in 9 years. The study also derived the trajectories of post-fire albedo dynamics from the percentages of pixels that recover to pre-fire albedo values each year. We found that the persistence of surface albedo darkening in most land cover types in the NSSA region is limited to about 6-7 years, after which at least 99% of the burnt pixels recover to their pre-fire albedo. Our results provide critical information for deriving necessary input to various models used in determining the effects of albedo change due to wild fires in the NSSA region. JF - Environmental Research Letters AU - Gatebe, C K AU - Ichoku, C M AU - Poudyal, R AU - Roman, M O AU - Wilcox, E AD - Universities Space Research Association, Columbia, Maryland 20146, USA, charles.k.gatebe@nasa.gov Y1 - 2014/06// PY - 2014 DA - June 2014 SP - 1 EP - 12 PB - IOP Publishing, The Public Ledger Building, Suite 929 Philadelphia PA 19106 United States VL - 9 IS - 6 SN - 1748-9326, 1748-9326 KW - Sustainability Science Abstracts KW - surface albedo KW - wildfires KW - sub-Saharan Africa KW - MODIS KW - biomass burning KW - albedo recovery KW - albedo darkening KW - Burns KW - Fires KW - Savannahs KW - Wildfire KW - Albedo KW - Climate KW - Africa KW - Vegetation KW - M3 1010:Issues in Sustainable Development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1709175123?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Research+Letters&rft.atitle=Surface+albedo+darkening+from+wildfires+in+northern+sub-Saharan+Africa&rft.au=Gatebe%2C+C+K%3BIchoku%2C+C+M%3BPoudyal%2C+R%3BRoman%2C+M+O%3BWilcox%2C+E&rft.aulast=Gatebe&rft.aufirst=C&rft.date=2014-06-01&rft.volume=9&rft.issue=6&rft.spage=1&rft.isbn=&rft.btitle=&rft.title=Environmental+Research+Letters&rft.issn=17489326&rft_id=info:doi/10.1088%2F1748-9326%2F9%2F6%2F065003 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-09-01 N1 - Last updated - 2016-08-03 N1 - SubjectsTermNotLitGenreText - Burns; Savannahs; Fires; Wildfire; Albedo; Climate; Vegetation; Africa DO - http://dx.doi.org/10.1088/1748-9326/9/6/065003 ER - TY - JOUR T1 - Geology, tectonics and topography underlined by L'Aquila earthquake TIR precursors AN - 1623280371; 2014-074032 AB - Anomalous thermal infrared (TIR) emissions have widely been detected by satellite sensors before the major earthquakes. A recent processing technique for geostationary thermal data, developed for the case of the 2009 April 6, magnitude 6.3 L'Aquila earthquake, makes it possible to identify areas of enhanced TIR emissions around the epicentral region at a mean distance of less than 50 km but inside a radius of about 100 km. The index, called Night Thermal Gradient (NTG), derived from 4-D time-series data (two spatial and two temporal coordinates), identifies TIR anomalies by following the temperature trend during night, when the surface of the Earth is expected to cool. Leading up to the L'Aquila earthquake, an anomalous warming trend was observed. In this study, the anomalous NTG pattern is compared to the expected normal trend, taking into account the seismogenic faults, the overall tectonic setting, lithological spatial features, the orography and world stress map near the epicentral region. Main results are that a certain lithological selectivity can be recognized and that the known main stress field and seismogenic faults seem to be less important than certain tectonic lineaments, which are classified as non-seismogenic. The strong correlation between the topography and the TIR anomalies is in agreement with proposed physical mechanism for the generation of TIR anomalies. This relation is, in turn, present mainly in correspondence to two tectonic lineaments which in particular are thrusts: therefore, strong compressive states seem to be a positive condition for the generation of TIR anomalies. The temporary modification of these stress fields have triggered the Paganica Fault to its normal rupture mechanism. It is important to note that the distances, over which the TIR anomalies occurred, are an order of magnitude larger than the estimated length of the main fault rupture. Pixel-by-pixel time-series comparisons between the maximum TIR anomaly area and the epicenter of the main shock show that the increase in radiative emission occurred in the areas of maximum TIR anomalies and did not start by spreading outward from the epicentral region. JF - Geophysical Journal International AU - Piroddi, Luca AU - Ranieri, Gaetano AU - Freund, Friedemann AU - Trogu, Antonio Y1 - 2014/06// PY - 2014 DA - June 2014 SP - 1532 EP - 1536 PB - Oxford University Press on behalf of The Royal Astronomical Society, the Deutsche Geophysikalische Gesellschaft and the European Geophysical Society VL - 197 IS - 3 SN - 0956-540X, 0956-540X KW - precursors KW - geologic hazards KW - thermal infrared spectra KW - Europe KW - Italy KW - Southern Europe KW - thermal analysis KW - L'Aquila earthquake 2009 KW - seismicity KW - earthquake prediction KW - seismic risk KW - natural hazards KW - risk assessment KW - tectonics KW - algorithms KW - earthquakes KW - Abruzzi Italy KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1623280371?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Journal+International&rft.atitle=Geology%2C+tectonics+and+topography+underlined+by+L%27Aquila+earthquake+TIR+precursors&rft.au=Piroddi%2C+Luca%3BRanieri%2C+Gaetano%3BFreund%2C+Friedemann%3BTrogu%2C+Antonio&rft.aulast=Piroddi&rft.aufirst=Luca&rft.date=2014-06-01&rft.volume=197&rft.issue=3&rft.spage=1532&rft.isbn=&rft.btitle=&rft.title=Geophysical+Journal+International&rft.issn=0956540X&rft_id=info:doi/10.1093%2Fgji%2Fggu123 L2 - http://www.blackwellpublishing.com/journal.asp?ref=0956-540X LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Number of references - 33 N1 - Document feature - illus. incl. 1 table, geol. sketch maps N1 - Last updated - 2014-11-13 N1 - SubjectsTermNotLitGenreText - Abruzzi Italy; algorithms; earthquake prediction; earthquakes; Europe; geologic hazards; Italy; L'Aquila earthquake 2009; natural hazards; precursors; risk assessment; seismic risk; seismicity; Southern Europe; tectonics; thermal analysis; thermal infrared spectra DO - http://dx.doi.org/10.1093/gji/ggu123 ER - TY - JOUR T1 - What does CloudSat reveal about global land precipitation detection by other spaceborne sensors? AN - 1623274420; 2014-091147 AB - Current orbital land precipitation products have serious shortcomings in detecting light rain and snowfall, the most frequent types of global precipitation. The missed precipitation is then propagated into the merged precipitation products that are widely used. Precipitation characteristics such as frequency and intensity and their regional distribution are expected to change in a warming climate. It is important to accurately capture those characteristics to understand and model the current state of the Earth's climate and predict future changes. In this work, the precipitation detection performance of a suite of precipitation sensors, commonly used in generating the merged precipitation products, are investigated. The high sensitivity of CloudSat Cloud Profiling Radar (CPR) to liquid and frozen hydrometeors enables superior estimates of light rainfall and snowfall within 80 degrees S-80 degrees N. Three years (2007-2009) of CloudSat precipitation data were collected to construct a climatology reference for guiding our analysis. In addition, auxiliary data such as infrared brightness temperature, surface air temperature, and cloud types were used for a more detailed assessment. The analysis shows that no more than 50% of the tropical (40 degrees S-40 degrees N) precipitation occurrence is captured by the current suite of precipitation measuring sensors. Poleward of 50 degrees latitude, a combination of various factors such as an abundance of light rainfall, snowfall, shallow precipitation-bearing clouds, and frozen surfaces reduces the space-based precipitation detection rate to less than 20%. This shows that for a better understanding of precipitation from space, especially at higher latitudes, there is a critical need to improve current precipitation retrieval techniques and sensors. Abstract Copyright (2014), . American Geophysical Union. All Rights Reserved. JF - Water Resources Research AU - Behrangi, Ali AU - Tian, Yudong AU - Lambrigtsen, Bjorn H AU - Stephens, Graeme L Y1 - 2014/06// PY - 2014 DA - June 2014 SP - 4893 EP - 4905 PB - American Geophysical Union, Washington, DC VL - 50 IS - 6 SN - 0043-1397, 0043-1397 KW - hydrology KW - rainfall KW - global KW - radar methods KW - atmospheric precipitation KW - orbital observations KW - satellite methods KW - remote sensing KW - CloudSat KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1623274420?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Research&rft.atitle=What+does+CloudSat+reveal+about+global+land+precipitation+detection+by+other+spaceborne+sensors%3F&rft.au=Behrangi%2C+Ali%3BTian%2C+Yudong%3BLambrigtsen%2C+Bjorn+H%3BStephens%2C+Graeme+L&rft.aulast=Behrangi&rft.aufirst=Ali&rft.date=2014-06-01&rft.volume=50&rft.issue=6&rft.spage=4893&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/10.1002%2F2013WR014566 L2 - http://www.agu.org/journals/wr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2014-01-01 N1 - Number of references - 67 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2014-11-13 N1 - CODEN - WRERAQ N1 - SubjectsTermNotLitGenreText - atmospheric precipitation; CloudSat; global; hydrology; orbital observations; radar methods; rainfall; remote sensing; satellite methods DO - http://dx.doi.org/10.1002/2013WR014566 ER - TY - JOUR T1 - Debates-the future of hydrological sciences; a (common) path forward; using models and data to learn; a systems theoretic perspective on the future of hydrological science AN - 1623274401; 2014-091176 JF - Water Resources Research AU - Gupta, Hoshin V AU - Nearing, Grey S Y1 - 2014/06// PY - 2014 DA - June 2014 SP - 5351 EP - 5359 PB - American Geophysical Union, Washington, DC VL - 50 IS - 6 SN - 0043-1397, 0043-1397 KW - hydrology KW - theoretical studies KW - numerical models KW - research KW - concepts KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1623274401?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Research&rft.atitle=Debates-the+future+of+hydrological+sciences%3B+a+%28common%29+path+forward%3B+using+models+and+data+to+learn%3B+a+systems+theoretic+perspective+on+the+future+of+hydrological+science&rft.au=Gupta%2C+Hoshin+V%3BNearing%2C+Grey+S&rft.aulast=Gupta&rft.aufirst=Hoshin&rft.date=2014-06-01&rft.volume=50&rft.issue=6&rft.spage=5351&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/10.1002%2F2013WR015096 L2 - http://www.agu.org/journals/wr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2014-01-01 N1 - Number of references - 28 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2014-11-13 N1 - CODEN - WRERAQ N1 - SubjectsTermNotLitGenreText - concepts; hydrology; numerical models; research; theoretical studies DO - http://dx.doi.org/10.1002/2013WR015096 ER - TY - JOUR T1 - Estimating information entropy for hydrological data; one-dimensional case AN - 1623272233; 2014-091152 AB - There has been a recent resurgence of interest in the application of Information Theory to problems of system identification in the Earth and Environmental Sciences. While the concept of entropy has found increased application, little attention has yet been given to the practical problems of estimating entropy when dealing with the unique characteristics of two commonly used kinds of hydrologic data: rainfall and runoff. In this paper, we discuss four important issues of practical relevance that can bias the computation of entropy if not properly handled. The first (zero effect) arises when precipitation and ephemeral streamflow data must be viewed as arising from a discrete-continuous hybrid distribution due to the occurrence of many zero values (e.g., days with no rain/no runoff). Second, in the widely used bin-counting method for estimation of PDF's, significant error can be introduced if the bin width is not carefully selected. The third (measurement effect) arises due to the fact that continuously varying hydrologic variables can typically only be observed discretely to some degree of precision. The Fourth (skewness effect) arises when the distribution of a variable is significantly skewed. Here we present an approach that can deal with all four of these issues, and test them with artificially generated and real hydrological data. The results indicate that the method is accurate and robust. Abstract Copyright (2014), . American Geophysical Union. All Rights Reserved. JF - Water Resources Research AU - Gong, Wei AU - Yang, Dawen AU - Gupta, Hoshin V AU - Nearing, Grey S Y1 - 2014/06// PY - 2014 DA - June 2014 SP - 5003 EP - 5018 PB - American Geophysical Union, Washington, DC VL - 50 IS - 6 SN - 0043-1397, 0043-1397 KW - hydrology KW - rainfall KW - entropy KW - statistical analysis KW - ephemeral streams KW - atmospheric precipitation KW - equations KW - information theory KW - probability density function KW - observations KW - errors KW - streamflow KW - runoff KW - mathematical methods KW - streams KW - accuracy KW - rain KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1623272233?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Research&rft.atitle=Estimating+information+entropy+for+hydrological+data%3B+one-dimensional+case&rft.au=Gong%2C+Wei%3BYang%2C+Dawen%3BGupta%2C+Hoshin+V%3BNearing%2C+Grey+S&rft.aulast=Gong&rft.aufirst=Wei&rft.date=2014-06-01&rft.volume=50&rft.issue=6&rft.spage=5003&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/10.1002%2F2014WR015874 L2 - http://www.agu.org/journals/wr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2014-01-01 N1 - Number of references - 40 N1 - PubXState - DC N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2014-11-13 N1 - CODEN - WRERAQ N1 - SubjectsTermNotLitGenreText - accuracy; atmospheric precipitation; entropy; ephemeral streams; equations; errors; hydrology; information theory; mathematical methods; observations; probability density function; rain; rainfall; runoff; statistical analysis; streamflow; streams DO - http://dx.doi.org/10.1002/2014WR015874 ER - TY - JOUR T1 - Atmospheric NO (sub 2) dynamics and impact on ocean color retrievals in urban nearshore regions AN - 1623271679; 2014-091220 AB - Urban nearshore regions are characterized by strong variability in atmospheric composition, associated with anthropogenic emissions and meteorological processes that influence the circulation and accumulation of atmospheric pollutants at the land-water interface. If not adequately corrected in satellite retrievals of ocean color, this atmospheric variability can impose a false impression of diurnal and seasonal changes in nearshore water quality and biogeochemical processes. Consideration of these errors is important for measurements from polar orbiting ocean color sensors but becomes critical for geostationary satellite missions having the capability for higher frequency and higher spatial resolution observations of coastal ocean dynamics. We examined variability in atmospheric NO (sub 2) over urban nearshore environments in the Eastern US, Europe, and Korea, using a new network of ground-based Pandora spectrometers and Aura-OMI satellite observations. Our measurements in the US and in Europe revealed clear diurnal and day-of-the-week patterns in total column NO (sub 2) (TCNO (sub 2) ), temporal changes as large as 0.8 DU within 4 h, and spatial variability as large as 0.7 DU within an area often covered by just a single OMI pixel. TCNO (sub 2) gradients were considerably stronger over the coastal cities of Korea. With a coarse resolution and an overpass at around 13:30 local time, OMI cannot detect this strong variability in NO (sub 2) , missing pollution peaks from industrial and rush hour activities. Observations were combined with air quality model simulations and radiative transfer calculations to estimate the impact of atmospheric NO (sub 2) variability on satellite retrievals of coastal ocean remote sensing reflectance and biogeochemical variables (i.e., chlorophyll and CDOM). Abstract Copyright (2014), . American Geophysical Union. All Rights Reserved. JF - Journal of Geophysical Research: Oceans AU - Tzortziou, Maria AU - Herman, Jay R AU - Ahmad, Ziauddin AU - Loughner, Christopher P AU - Abuhassan, Nader AU - Cede, Alexander Y1 - 2014/06// PY - 2014 DA - June 2014 SP - 3834 EP - 3854 PB - Wiley-Blackwell for American Geophysical Union, Washington, DC VL - 119 IS - 6 SN - 2169-9275, 2169-9275 KW - water quality KW - terrestrial environment KW - sea water KW - pollutants KW - human activity KW - pollution KW - atmosphere KW - nearshore environment KW - satellite methods KW - urban environment KW - transport KW - color KW - atmospheric transport KW - meteorology KW - nitrogen dioxide KW - remote sensing KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1623271679?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research%3A+Oceans&rft.atitle=Atmospheric+NO+%28sub+2%29+dynamics+and+impact+on+ocean+color+retrievals+in+urban+nearshore+regions&rft.au=Tzortziou%2C+Maria%3BHerman%2C+Jay+R%3BAhmad%2C+Ziauddin%3BLoughner%2C+Christopher+P%3BAbuhassan%2C+Nader%3BCede%2C+Alexander&rft.aulast=Tzortziou&rft.aufirst=Maria&rft.date=2014-06-01&rft.volume=119&rft.issue=6&rft.spage=3834&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Oceans&rft.issn=21699275&rft_id=info:doi/10.1002%2F2014JC009803 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2014-01-01 N1 - Number of references - 32 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2015-02-19 N1 - SubjectsTermNotLitGenreText - atmosphere; atmospheric transport; color; human activity; meteorology; nearshore environment; nitrogen dioxide; pollutants; pollution; remote sensing; satellite methods; sea water; terrestrial environment; transport; urban environment; water quality DO - http://dx.doi.org/10.1002/2014JC009803 ER - TY - JOUR T1 - A new stereo topographic map of Io; implications for geology from global to local scales AN - 1618132318; 2014-086499 AB - We use Voyager and Galileo stereo pairs to construct the most complete stereo digital elevation model (DEM) of Io assembled to date, controlled using Galileo limb profiles. Given the difficulty of applying these two techniques to Io due to its anomalous surface albedo properties, we have experimented extensively with the relevant procedures in order to generate what we consider to be the most reliable DEMs. Our final stereo DEM covers approximately 75% of the globe, and we have identified a partial system of longitudinally arranged alternating basins and swells that correlates well to the distribution of mountain and volcano concentrations. We consider the correlation of swells to volcano concentrations and basins to mountain concentrations, to imply a heat flow distribution across Io that is consistent with the asthenospheric tidal heating model of Tackley et al. (2001). The stereo DEM reveals topographic signatures of regional-scale features including Loki Patera, Ra Patera, and the Tvashtar Paterae complex, in addition to previously unrecognized features including an approximately 1000 km diameter depression and a >2000 km long topographic arc comprising mountainous and layered plains material. Abstract Copyright (2014), . American Geophysical Union. All Rights Reserved. JF - Journal of Geophysical Research: Planets AU - White, Oliver L AU - Schenk, Paul M AU - Nimmo, Francis AU - Hoogenboom, Trudi Y1 - 2014/06// PY - 2014 DA - June 2014 SP - 1276 EP - 1301 PB - Wiley-Blackwell for American Geophysical Union, Washington, DC VL - 119 IS - 6 SN - 2169-9097, 2169-9097 KW - imagery KW - Galileo Program KW - Tvashtar Paterae KW - Voyager Program KW - Io Satellite KW - mapping KW - Galilean satellites KW - digital terrain models KW - asthenosphere KW - extraterrestrial geology KW - surface features KW - volcanoes KW - stereogrammetry KW - Ra Patera KW - satellites KW - Loki Patera KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1618132318?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research%3A+Planets&rft.atitle=A+new+stereo+topographic+map+of+Io%3B+implications+for+geology+from+global+to+local+scales&rft.au=White%2C+Oliver+L%3BSchenk%2C+Paul+M%3BNimmo%2C+Francis%3BHoogenboom%2C+Trudi&rft.aulast=White&rft.aufirst=Oliver&rft.date=2014-06-01&rft.volume=119&rft.issue=6&rft.spage=1276&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Planets&rft.issn=21699097&rft_id=info:doi/10.1002%2F2013JE004591 L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%292169-9100 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2014-01-01 N1 - Number of references - 60 N1 - PubXState - DC N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2015-02-19 N1 - SubjectsTermNotLitGenreText - asthenosphere; digital terrain models; extraterrestrial geology; Galilean satellites; Galileo Program; imagery; Io Satellite; Loki Patera; mapping; Ra Patera; satellites; stereogrammetry; surface features; Tvashtar Paterae; volcanoes; Voyager Program DO - http://dx.doi.org/10.1002/2013JE004591 ER - TY - JOUR T1 - Alteration of the carbon and nitrogen isotopic composition in the Martian surface rocks due to cosmic ray exposure AN - 1618131787; 2014-086504 AB - (super 13) C/ (super 12) C and (super 15) N/ (super 14) N isotopic ratios are pivotal for our understanding of the Martian carbon cycle, history of the Martian atmospheric escape, and origin of the organic compounds on Mars. Here we demonstrate that the carbon and nitrogen isotopic composition of the surface rocks on Mars can be significantly altered by the continuous exposure of Martian surface to cosmic rays. Cosmic rays can effectively produce (super 13) C and (super 15) N isotopes via spallation nuclear reactions on oxygen atoms in various Martian rocks. We calculate that in the top meter of the Martian rocks, the rates of production of both (super 13) C and (super 15) N due to galactic cosmic rays (GCRs) exposure can vary within 1.5-6 atoms/cm (super 3) /s depending on rocks' depth and chemical composition. We also find that the average solar cosmic rays can produce carbon and nitrogen isotopes at a rate comparable to GCRs in the top 5-10 cm of the Martian rocks. We demonstrate that if the total carbon content in a surface Martian rock is <10 ppm, then the "light," potentially "biological" (super 13) C/ (super 12) C ratio would be effectively erased by cosmic rays over 3.5 billion years of exposure. We found that for the rocks with relatively short exposure ages (e.g., 100 million years), cosmogenic changes in (super 15) N/ (super 14) N ratio are still very significant. We also show that a short exposure to cosmic rays of Allan Hills 84001 while on Mars can explain its high-temperature heavy nitrogen isotopic composition ( (super 15) N/ (super 14) N). Applications to Martian meteorites and the current Mars Science Laboratory mission are discussed. Abstract Copyright (2014), . American Geophysical Union. All Rights Reserved. JF - Journal of Geophysical Research: Planets AU - Pavlov, A A AU - Pavlov, A K AU - Ostryakov, V M AU - Vasilyev, G I AU - Mahaffy, P AU - Steele, A Y1 - 2014/06// PY - 2014 DA - June 2014 SP - 1390 EP - 1402 PB - Wiley-Blackwell for American Geophysical Union, Washington, DC VL - 119 IS - 6 SN - 2169-9097, 2169-9097 KW - alteration KW - volcanic rocks KW - stony meteorites KW - isotopes KW - Martian meteorites KW - igneous rocks KW - Mars KW - exposure age KW - stable isotopes KW - nitrogen KW - meteorites KW - carbon KW - basalts KW - cosmic rays KW - N-15/N-14 KW - isotope ratios KW - C-13/C-12 KW - achondrites KW - geochemical cycle KW - terrestrial planets KW - planets KW - organic compounds KW - Allan Hills Meteorites KW - Antarctica KW - Mars Science Laboratory KW - carbon cycle KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1618131787?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research%3A+Planets&rft.atitle=Alteration+of+the+carbon+and+nitrogen+isotopic+composition+in+the+Martian+surface+rocks+due+to+cosmic+ray+exposure&rft.au=Pavlov%2C+A+A%3BPavlov%2C+A+K%3BOstryakov%2C+V+M%3BVasilyev%2C+G+I%3BMahaffy%2C+P%3BSteele%2C+A&rft.aulast=Pavlov&rft.aufirst=A&rft.date=2014-06-01&rft.volume=119&rft.issue=6&rft.spage=1390&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Planets&rft.issn=21699097&rft_id=info:doi/10.1002%2F2014JE004615 L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%292169-9100 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2014-01-01 N1 - Number of references - 50 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2015-02-19 N1 - SubjectsTermNotLitGenreText - achondrites; Allan Hills Meteorites; alteration; Antarctica; basalts; C-13/C-12; carbon; carbon cycle; cosmic rays; exposure age; geochemical cycle; igneous rocks; isotope ratios; isotopes; Mars; Mars Science Laboratory; Martian meteorites; meteorites; N-15/N-14; nitrogen; organic compounds; planets; stable isotopes; stony meteorites; terrestrial planets; volcanic rocks DO - http://dx.doi.org/10.1002/2014JE004615 ER - TY - JOUR T1 - Terrain physical properties derived from orbital data and the first 360 sols of Mars Science Laboratory Curiosity Rover observations in Gale Crater AN - 1618131579; 2014-086501 AB - Physical properties of terrains encountered by the Curiosity rover during the first 360 sols of operations have been inferred from analysis of the scour zones produced by Sky Crane Landing System engine plumes, wheel touch down dynamics, pits produced by Chemical Camera (ChemCam) laser shots, rover wheel traverses over rocks, the extent of sinkage into soils, and the magnitude and sign of rover-based slippage during drives. Results have been integrated with morphologic, mineralogic, and thermophysical properties derived from orbital data, and Curiosity-based measurements, to understand the nature and origin of physical properties of traversed terrains. The hummocky plains (HP) landing site and traverse locations consist of moderately to well-consolidated bedrock of alluvial origin variably covered by slightly cohesive, hard-packed basaltic sand and dust, with both embedded and surface-strewn rock clasts. Rock clasts have been added through local bedrock weathering and impact ejecta emplacement and form a pavement-like surface in which only small clasts (<5 to 10 cm wide) have been pressed into the soil during wheel passages. The bedded fractured (BF) unit, site of Curiosity's first drilling activity, exposes several alluvial-lacustrine bedrock units with little to no soil cover and varying degrees of lithification. Small wheel sinkage values (<1 cm) for both HP and BF surfaces demonstrate that compaction resistance countering driven-wheel thrust has been minimal and that rover slippage while traversing across horizontal surfaces or going uphill, and skid going downhill, have been dominated by terrain tilts and wheel-surface material shear modulus values. Abstract Copyright (2014), . American Geophysical Union. All Rights Reserved. JF - Journal of Geophysical Research: Planets AU - Arvidson, R E AU - Bellutta, P AU - Calef, F J AU - Fraeman, A A AU - Garvin, J B AU - Gasnault, O AU - Grant, J A AU - Grotzinger, J P AU - Hamilton, V E AU - Heverly, M AU - Iagnemma, K A AU - Johnson, J R AU - Lanza, N L AU - Le Mouelic, S AU - Mangold, N AU - Ming, D W AU - Mehta, M AU - Morris, R V AU - Newsom, H E AU - Renno, N AU - Rubin, D AU - Schieber, J AU - Sletten, R AU - Stein, N T AU - Thuillier, F AU - Vasavada, A R AU - Vizcaino, J AU - Wiens, R C Y1 - 2014/06// PY - 2014 DA - June 2014 SP - 1322 EP - 1344 PB - Wiley-Blackwell for American Geophysical Union, Washington, DC VL - 119 IS - 6 SN - 2169-9097, 2169-9097 KW - impact features KW - techniques KW - Mars KW - landing sites KW - observations KW - Gale Crater KW - terrestrial planets KW - planets KW - physical properties KW - terrains KW - Curiosity Rover KW - Mars Science Laboratory KW - impact craters KW - instruments KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1618131579?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research%3A+Planets&rft.atitle=Terrain+physical+properties+derived+from+orbital+data+and+the+first+360+sols+of+Mars+Science+Laboratory+Curiosity+Rover+observations+in+Gale+Crater&rft.au=Arvidson%2C+R+E%3BBellutta%2C+P%3BCalef%2C+F+J%3BFraeman%2C+A+A%3BGarvin%2C+J+B%3BGasnault%2C+O%3BGrant%2C+J+A%3BGrotzinger%2C+J+P%3BHamilton%2C+V+E%3BHeverly%2C+M%3BIagnemma%2C+K+A%3BJohnson%2C+J+R%3BLanza%2C+N+L%3BLe+Mouelic%2C+S%3BMangold%2C+N%3BMing%2C+D+W%3BMehta%2C+M%3BMorris%2C+R+V%3BNewsom%2C+H+E%3BRenno%2C+N%3BRubin%2C+D%3BSchieber%2C+J%3BSletten%2C+R%3BStein%2C+N+T%3BThuillier%2C+F%3BVasavada%2C+A+R%3BVizcaino%2C+J%3BWiens%2C+R+C&rft.aulast=Arvidson&rft.aufirst=R&rft.date=2014-06-01&rft.volume=119&rft.issue=6&rft.spage=1322&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Planets&rft.issn=21699097&rft_id=info:doi/10.1002%2F2013JE004605 L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%292169-9100 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2014-01-01 N1 - Number of references - 53 N1 - PubXState - DC N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2015-02-19 N1 - SubjectsTermNotLitGenreText - Curiosity Rover; Gale Crater; impact craters; impact features; instruments; landing sites; Mars; Mars Science Laboratory; observations; physical properties; planets; techniques; terrains; terrestrial planets DO - http://dx.doi.org/10.1002/2013JE004605 ER - TY - JOUR T1 - The Metabolic Cost of an Integrated Exercise Program Performed During 14 Days of Bed Rest AN - 1560120964; 20419339 AB - Background: Exercise countermeasures designed to mitigate muscle atrophy during long-duration spaceflight may not be as effective if crew-members are in negative energy balance (energy output > energy input). This study determined the energy cost of supine exercise (resistance, interval, aerobic) during the spaceflight analogue of bed rest. Methods: Nine subjects (eight men and one woman; 34.5 + or - 8.2 yr) completed 14 d of bed rest and concomitant exercise countermeasures. Body mass and basal metabolic rate (BMR) were assessed before and during bed rest. Exercise energy expenditure was measured during and immediately after [excess post-exercise oxygen consumption (EPOC)] each of five different exercise protocols (30-s, 2-min, and 4-min intervals, continuous aerobic, and a variety of resistance exercises) during bed rest. Results: On days when resistance and continuous aerobic exercise were performed daily, energy expenditure was significantly greater (2879 + or - 280 kcal) than 2-min (2390 + or - 237 kcal), 30-s (2501 + or - 264 kcal), or 4-min (2546 + or - 264 kcal) exercise. There were no significant differences in BMR (prebed rest: 1649 + or - 216 kcal; week 1: 1632 + or - 174 kcal; week 2: 1 657 + or - 176 kcal) or body mass (pre-bed rest: 75.2 + or - 10.1 kg; post-bed rest: 75.2 + or - 9.6 kg). Discussion: These findings highlight the importance of energy balance for long-duration crewmembers completing a high-intensity exercise program with multiple exercise sessions daily. JF - Aviation, Space, and Environmental Medicine AU - Scott, Jessica M AU - Hackney, Kyle AU - Downs, Meghan AU - Guined, Jamie AU - Ploutz-Snyder, Robert AU - Fiedler, James AU - Cunningham, David AU - Ploutz-Snyder, Lori AD - Universities Space Research Association and the NASA Johnson Space Center, Houston, TX, jessica.m.scott@nasa.gov Y1 - 2014/06// PY - 2014 DA - Jun 2014 SP - 612 EP - 617 PB - Aerospace Medical Association, 320 S. Henry St. Alexandria VA 22314-3579 United States VL - 85 IS - 6 SN - 0095-6562, 0095-6562 KW - Physical Education Index; Health & Safety Science Abstracts KW - disuse KW - energy expenditure KW - spaceflight KW - post-exercise oxygen consumption KW - Oxygen consumption KW - Measurement KW - Aerobics KW - Body mass KW - Muscles KW - Energy consumption KW - Resistance exercise KW - Exercise (programs) KW - Energy cost KW - Energy KW - Rest KW - Atrophy KW - Immobilization KW - H 2000:Transportation KW - PE 030:Exercise, Health & Physical Fitness UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1560120964?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aphysicaleducation&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Aviation%2C+Space%2C+and+Environmental+Medicine&rft.atitle=The+Metabolic+Cost+of+an+Integrated+Exercise+Program+Performed+During+14+Days+of+Bed+Rest&rft.au=Scott%2C+Jessica+M%3BHackney%2C+Kyle%3BDowns%2C+Meghan%3BGuined%2C+Jamie%3BPloutz-Snyder%2C+Robert%3BFiedler%2C+James%3BCunningham%2C+David%3BPloutz-Snyder%2C+Lori&rft.aulast=Scott&rft.aufirst=Jessica&rft.date=2014-06-01&rft.volume=85&rft.issue=6&rft.spage=612&rft.isbn=&rft.btitle=&rft.title=Aviation%2C+Space%2C+and+Environmental+Medicine&rft.issn=00956562&rft_id=info:doi/10.3357%2FASEM.3772.2014 LA - English DB - Physical Education Index; ProQuest Environmental Science Collection N1 - Date revised - 2014-09-01 N1 - Number of references - 29 N1 - Last updated - 2015-04-02 N1 - SubjectsTermNotLitGenreText - Energy cost; Measurement; Aerobics; Body mass; Rest; Atrophy; Resistance exercise; Exercise (programs); Immobilization; Oxygen consumption; Energy; Muscles; Energy consumption DO - http://dx.doi.org/10.3357/ASEM.3772.2014 ER - TY - JOUR T1 - CMIP5 historical simulations (1850-2012) with GISS ModelE2 AN - 1560104478; 20554338 AB - Observations of climate change during the CMIP5 extended historical period (1850-2012) are compared to trends simulated by six versions of the NASA Goddard Institute for Space Studies ModelE2 Earth System Model. The six models are constructed from three versions of the ModelE2 atmospheric general circulation model, distinguished by their treatment of atmospheric composition and the aerosol indirect effect, combined with two ocean general circulation models, HYCOM and Russell. Forcings that perturb the model climate during the historical period are described. Five-member ensemble averages from each of the six versions of ModelE2 simulate trends of surface air temperature, atmospheric temperature, sea ice and ocean heat content that are in general agreement with observed trends, although simulated warming is slightly excessive within the past decade. Only simulations that include increasing concentrations of long-lived greenhouse gases match the warming observed during the twentieth century. Differences in twentieth-century warming among the six model versions can be attributed to differences in climate sensitivity, aerosol and ozone forcing, and heat uptake by the deep ocean. Coupled models with HYCOM export less heat to the deep ocean, associated with reduced surface warming in regions of deepwater formation, but greater warming elsewhere at high latitudes along with reduced sea ice. All ensembles show twentieth-century annular trends toward reduced surface pressure at southern high latitudes and a poleward shift of the midlatitude westerlies, consistent with observations. Key Points * The model simulates many observed climate trends during the twentieth century * Contrasting warming trends among different model configurations can be related to differences in climate sensitivity, aerosol and ozone forcing, and ocean heat uptake * Total forcing at the end of the CMIP5 historical period is larger than forcing within the previous (CMIP3) version of the model, due to greater greenhouse gas forcing with a smaller aerosol offset JF - Journal of Advances in Modeling Earth Systems AU - Miller, Ron L AU - Schmidt, Gavin A AU - Nazarenko, Larissa S AU - Tausnev, Nick AU - Bauer, Susanne E AU - DelGenio, Anthony D AU - Kelley, Max AU - Lo, Ken K AU - Ruedy, Reto AU - Shindell, Drew T AU - Aleinov, Igor AU - Bauer, Mike AU - Bleck, Rainer AU - Canuto, Vittorio AU - Chen, Yonghua AU - Cheng, Ye AU - Clune, Thomas L AU - Faluvegi, Greg AU - Hansen, James E AU - Healy, Richard J AU - Kiang, Nancy Y AU - Koch, Dorothy AU - Lacis, Andy A AU - LeGrande, Allegra N AU - Lerner, Jean AU - Menon, Surabi AU - Oinas, Valdar AU - Perez Garcia-Pando, Carlos AU - Perlwitz, Jan P AU - Puma, Michael J AU - Rind, David AU - Romanou, Anastasia AU - Russell, Gary L AU - Sato, Makiko AU - Sun, Shan AU - Tsigaridis, Kostas AU - Unger, Nadine AU - Voulgarakis, Apostolos AU - Yao, Mao-Sung AU - Zhang, Jinlun AD - NASA Goddard Institute for Space Studies, New York, New York, USA. Y1 - 2014/06// PY - 2014 DA - June 2014 SP - 441 EP - 477 PB - John Wiley & Sons, Ltd., Baffins Lane Chichester W. Sussex PO19 1UD United Kingdom VL - 6 IS - 2 SN - 1942-2466, 1942-2466 KW - Sustainability Science Abstracts; Meteorological & Geoastrophysical Abstracts KW - Historical account KW - Climate change KW - Westerlies KW - Sea ice temperatures KW - Air temperature KW - Surface pressure KW - Exports KW - Climate sensitivity KW - Latitude KW - Atmospheric composition KW - Ozone KW - Sensitivity KW - Aerosols KW - Climate models KW - Simulation KW - Climatic trends KW - Atmosphere-ocean-sea ice coupled models KW - Atmospheric circulation KW - Atmospheric temperature KW - Sea ice KW - Numerical simulations KW - Oceans KW - General circulation models KW - Uptake KW - Temperature trends KW - Greenhouse gases KW - M2 551.583:Variations (551.583) KW - M3 1010:Issues in Sustainable Development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1560104478?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Advances+in+Modeling+Earth+Systems&rft.atitle=CMIP5+historical+simulations+%281850-2012%29+with+GISS+ModelE2&rft.au=Miller%2C+Ron+L%3BSchmidt%2C+Gavin+A%3BNazarenko%2C+Larissa+S%3BTausnev%2C+Nick%3BBauer%2C+Susanne+E%3BDelGenio%2C+Anthony+D%3BKelley%2C+Max%3BLo%2C+Ken+K%3BRuedy%2C+Reto%3BShindell%2C+Drew+T%3BAleinov%2C+Igor%3BBauer%2C+Mike%3BBleck%2C+Rainer%3BCanuto%2C+Vittorio%3BChen%2C+Yonghua%3BCheng%2C+Ye%3BClune%2C+Thomas+L%3BFaluvegi%2C+Greg%3BHansen%2C+James+E%3BHealy%2C+Richard+J%3BKiang%2C+Nancy+Y%3BKoch%2C+Dorothy%3BLacis%2C+Andy+A%3BLeGrande%2C+Allegra+N%3BLerner%2C+Jean%3BMenon%2C+Surabi%3BOinas%2C+Valdar%3BPerez+Garcia-Pando%2C+Carlos%3BPerlwitz%2C+Jan+P%3BPuma%2C+Michael+J%3BRind%2C+David%3BRomanou%2C+Anastasia%3BRussell%2C+Gary+L%3BSato%2C+Makiko%3BSun%2C+Shan%3BTsigaridis%2C+Kostas%3BUnger%2C+Nadine%3BVoulgarakis%2C+Apostolos%3BYao%2C+Mao-Sung%3BZhang%2C+Jinlun&rft.aulast=Miller&rft.aufirst=Ron&rft.date=2014-06-01&rft.volume=6&rft.issue=2&rft.spage=441&rft.isbn=&rft.btitle=&rft.title=Journal+of+Advances+in+Modeling+Earth+Systems&rft.issn=19422466&rft_id=info:doi/10.1002%2F2013MS000266 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-09-01 N1 - Last updated - 2016-08-03 N1 - SubjectsTermNotLitGenreText - Climate models; Climate change; Westerlies; Atmosphere-ocean-sea ice coupled models; Climatic trends; Sea ice temperatures; Surface pressure; Sea ice; Numerical simulations; General circulation models; Climate sensitivity; Atmospheric composition; Temperature trends; Greenhouse gases; Historical account; Sensitivity; Aerosols; Simulation; Atmospheric circulation; Atmospheric temperature; Air temperature; Exports; Oceans; Latitude; Uptake; Ozone DO - http://dx.doi.org/10.1002/2013MS000266 ER - TY - JOUR T1 - Energetic particle impact on X-ray imaging with XMM-Newton AN - 1559716750; 20395766 AB - Since energetic protons (100 keV) hinder space-based X-ray imaging, there is a need to characterize the proton environments encountered by a soft X-ray mission when planning missions and operations in the near-Earth environment. Impacts range from enhanced noise in the images to damage to CCD detectors. The high-apogee (17.9 R sub(E)), inclined (40 degree ), and elliptical orbit of European Space Agency's XMM-Newton mission frequently passes through the Earth's Van Allen radiation belts on closed magnetospheric magnetic field lines, the magnetotail lobes on open magnetic field lines, and into the magnetosheath and solar wind on open solar magnetic field lines, four regions with very different energetic proton environments. We use XMM-Newton measurements from 2000 to 2010 to survey the occurrence of proton strikes or "soft proton flares" on the European Photon Imaging Camera pn-junction CCD detector. Proton flares affect 55% of all measurements. Rates vary from 50%at large radial distances in the solar wind and magnetosheath to 25% in the high-latitude magnetotail lobes and increase to 66%of the measurements on closed low-latitude magnetospheric magnetic field lines. Key Points * Energetic protons can cause problems for CCD X-ray imaging * Proton contamination occurs mostly on closed magnetic field lines * On XMM-Newton's orbit, contamination is least likely in the magnetospheric lobes JF - Space Weather AU - Walsh, B M AU - Kuntz, K D AU - Collier, M R AU - Sibeck, D G AU - Snowden, S L AU - Thomas, N E AD - Heliosphysics Division, NASA Goddard Space Flight Center, Greenbelt, Maryland, USA. Y1 - 2014/06// PY - 2014 DA - Jun 2014 SP - 387 EP - 394 PB - American Geophysical Union, 2000 Florida Ave., N.W. Washington DC 20009 United States VL - 12 IS - 6 SN - 1542-7390, 1542-7390 KW - Pollution Abstracts; Meteorological & Geoastrophysical Abstracts KW - Weather KW - Solar magnetic fields KW - European Space Agency KW - Magnetotail KW - Solar flares KW - Solar wind KW - Acoustic waves KW - X-ray astronomy KW - Noise levels KW - X-ray measurements KW - Particulates KW - Magnetic fields KW - Satellite data KW - Telescopes KW - Radiation KW - Magnetosheath KW - Noise pollution KW - Magnetospheric magnetic field KW - Wind KW - P 7000:NOISE KW - M2 523.62:Solar Wind, Interplanetary Plasma (523.62) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1559716750?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Space+Weather&rft.atitle=Energetic+particle+impact+on+X-ray+imaging+with+XMM-Newton&rft.au=Walsh%2C+B+M%3BKuntz%2C+K+D%3BCollier%2C+M+R%3BSibeck%2C+D+G%3BSnowden%2C+S+L%3BThomas%2C+N+E&rft.aulast=Walsh&rft.aufirst=B&rft.date=2014-06-01&rft.volume=12&rft.issue=6&rft.spage=387&rft.isbn=&rft.btitle=&rft.title=Space+Weather&rft.issn=15427390&rft_id=info:doi/10.1002%2F2014SW001046 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-09-01 N1 - Last updated - 2015-04-09 N1 - SubjectsTermNotLitGenreText - Solar magnetic fields; Magnetotail; European Space Agency; Solar wind; Solar flares; Acoustic waves; X-ray astronomy; X-ray measurements; Magnetic fields; Telescopes; Satellite data; Magnetosheath; Noise pollution; Magnetospheric magnetic field; Weather; Radiation; Noise levels; Particulates; Wind DO - http://dx.doi.org/10.1002/2014SW001046 ER - TY - JOUR T1 - Oral histories in meteoritics and planetary science; XXIV, William K. Hartmann AN - 1549617711; 2014-060437 AB - In this interview, William Hartmann (Bill, Fig. 1) describes how he was inspired as a teenager by a map of the Moon in an encyclopedia and by the paintings by Chesley Bonestell. Through the amateur journal "Strolling Astronomer," he shared his interests with other teenagers who became lifelong colleagues. At college, he participated in Project Moonwatch, observing early artificial satellites. In graduate school, under Gerard Kuiper, Bill discovered Mare Orientale and other large concentric lunar basin structures. In the 1960s and 1970s, he used crater densities to study surface ages and erosive/depositional effects, predicted the approximately 3.6 Gyr ages of the lunar maria before the Apollo samples, discovered the intense pre-mare lunar bombardment, deduced the youthful Martian volcanism as part of the Mariner 9 team, and proposed (with Don Davis) the giant impact model for lunar origin. In 1972, he helped found (what is now) the Planetary Science Institute. From the late 1970s to early 1990s, Bill worked mostly with Dale Cruikshank and Dave Tholen at Mauna Kea Observatory, helping to break down the Victorian paradigm that separated comets and asteroids, and determining the approximately 4% albedo of comet nuclei. Most recently, Bill has worked with the imaging teams for several additional Mars missions. He has written three college textbooks and, since the 1970s, after painting illustrations for his textbooks, has devoted part of his time to painting, having had several exhibitions. He has also published two novels. Bill Hartmann won the 2010 Barringer Award for impact studies and the first Carl Sagan Award for outreach in 1997. JF - Meteoritics & Planetary Science AU - Sears, Derek W G Y1 - 2014/06// PY - 2014 DA - June 2014 SP - 1119 EP - 1138 PB - Meteoritical Society, Fayetteville, AR VL - 49 IS - 6 SN - 1086-9379, 1086-9379 KW - asteroids KW - Moon KW - Mare Orientale KW - Mars KW - maria KW - biography KW - lunar craters KW - bibliography KW - terrestrial planets KW - planets KW - Mariner 9 KW - giant impact hypothesis KW - comets KW - crater counts KW - volcanism KW - Mariner Program KW - Hartmann, William K. KW - basins KW - lunar basins KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1549617711?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Oral+histories+in+meteoritics+and+planetary+science%3B+XXIV%2C+William+K.+Hartmann&rft.au=Sears%2C+Derek+W+G&rft.aulast=Sears&rft.aufirst=Derek+W&rft.date=2014-06-01&rft.volume=49&rft.issue=6&rft.spage=1119&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fmaps.12298 L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2014-01-01 N1 - Number of references - 2 N1 - PubXState - AR N1 - Document feature - illus. incl. port. N1 - Last updated - 2014-07-31 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - asteroids; basins; bibliography; biography; comets; crater counts; giant impact hypothesis; Hartmann, William K.; lunar basins; lunar craters; Mare Orientale; maria; Mariner 9; Mariner Program; Mars; Moon; planets; terrestrial planets; volcanism DO - http://dx.doi.org/10.1111/maps.12298 ER - TY - JOUR T1 - Reconciliation of halogen-induced ozone loss with the total-column ozone record AN - 1549617374; 2014-060474 JF - Nature Geoscience AU - Shepherd, Theodore G AU - Plummer, D A AU - Scinocca, J F AU - Hegglin, M I AU - Fioletov, V E AU - Reader, M C AU - Remsberg, E AU - von Clarmann, T AU - Wang, H J Y1 - 2014/06// PY - 2014 DA - June 2014 SP - 443 EP - 449 PB - Nature Publishing Group, London VL - 7 IS - 6 SN - 1752-0894, 1752-0894 KW - halogens KW - ecosystems KW - troposphere KW - simulation KW - climate change KW - remediation KW - air pollution KW - atmospheric circulation KW - ozone KW - stratosphere KW - denitrification KW - meteorology KW - clouds KW - chlorine KW - time series analysis KW - human activity KW - Arctic region KW - statistical analysis KW - pollution KW - atmosphere KW - South Pole KW - gases KW - ozone hole KW - Antarctica KW - North Pole KW - eruptions KW - aerosols KW - air KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1549617374?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nature+Geoscience&rft.atitle=Reconciliation+of+halogen-induced+ozone+loss+with+the+total-column+ozone+record&rft.au=Shepherd%2C+Theodore+G%3BPlummer%2C+D+A%3BScinocca%2C+J+F%3BHegglin%2C+M+I%3BFioletov%2C+V+E%3BReader%2C+M+C%3BRemsberg%2C+E%3Bvon+Clarmann%2C+T%3BWang%2C+H+J&rft.aulast=Shepherd&rft.aufirst=Theodore&rft.date=2014-06-01&rft.volume=7&rft.issue=6&rft.spage=443&rft.isbn=&rft.btitle=&rft.title=Nature+Geoscience&rft.issn=17520894&rft_id=info:doi/10.1038%2FNGEO2155 L2 - http://www.nature.com/ngeo/index.html LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Number of references - 49 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2014-07-31 N1 - SubjectsTermNotLitGenreText - aerosols; air; air pollution; Antarctica; Arctic region; atmosphere; atmospheric circulation; chlorine; climate change; clouds; denitrification; ecosystems; eruptions; gases; halogens; human activity; meteorology; North Pole; ozone; ozone hole; pollution; remediation; simulation; South Pole; statistical analysis; stratosphere; time series analysis; troposphere DO - http://dx.doi.org/10.1038/NGEO2155 ER - TY - JOUR T1 - On the Role of SST Forcing in the 2011 and 2012 Extreme U.S. Heat and Drought: A Study in Contrasts AN - 1547866108; 20112368 AB - This study compares the extreme heat and drought that developed over the United States in 2011 and 2012 with a focus on the role of sea surface temperature (SST) forcing. Experiments with the NASA Goddard Earth Observing System, version 5 (GEOS-5), atmospheric general circulation model show that the winter/spring response over the United States to the Pacific SST is remarkably similar for the two years despite substantial differences in the tropical Pacific SST. As such, the pronounced winter and early spring temperature differences between the two years (warmth confined to the south in 2011 and covering much of the continent in 2012) primarily reflect differences in the contributions from the Atlantic and Indian Oceans, with both acting to cool the east and upper Midwest during 2011, while during 2012 the Indian Ocean reinforced the Pacific-driven, continental-wide warming and the Atlantic played a less important role. During late spring and summer of 2011, the tropical Pacific SST forced a continued warming and drying over the southern United States, though considerably weaker than observed. Nevertheless, the observed 2011 anomalies fall well within the models intraensemble spread. In contrast, the observed rapid development of intense heat and drying over the central United States during June and July 2012 falls on the margins of the models intraensemble spread, with the response to the SST giving little indication that 2012 would produce record-breaking precipitation deficits and heat. A diagnosis of the 2012 observed circulation anomalies shows that the most extreme heat and drought was tied to the development of a stationary Rossby wave and an associated anomalous upper-tropospheric high maintained by weather transients. JF - Journal of Hydrometeorology AU - Wang, Hailan AU - Schubert, Siegfried AU - Koster, Randal AU - Ham, Yoo-Geun AU - Suarez, Max AD - Global Modeling and Assimilation Office, NASA Goddard Space Flight Center, Greenbelt, Maryland, and Science Systems and Applications, Inc., Hampton, Virginia Y1 - 2014/06// PY - 2014 DA - Jun 2014 SP - 1255 EP - 1273 PB - American Meteorological Society, 45 Beacon St. Boston MA 02108-3693 United States VL - 15 IS - 3 SN - 1525-755X, 1525-755X KW - ASFA 2: Ocean Technology Policy & Non-Living Resources; Aqualine Abstracts; Water Resources Abstracts; Meteorological & Geoastrophysical Abstracts KW - Meteorological data KW - Sea surface KW - Drought KW - IS, Tropical Pacific KW - Stationary Rossby waves KW - Sea surface temperature anomalies KW - Sea surface temperatures KW - Droughts KW - Marine KW - ISW, Indian Ocean KW - Weather KW - Planetary waves KW - Temperature KW - Drying KW - Freak waves KW - Atmospheric circulation KW - Precipitation KW - Extreme values KW - Temperature differences KW - Model Studies KW - Surface temperature KW - Hydrometeorology KW - USA KW - Hydrometeorological research KW - Heat KW - Oceans KW - General circulation models KW - Q2 09243:Structure, mechanics and thermodynamics KW - AQ 00001:Water Resources and Supplies KW - SW 5010:Network design KW - M2 551.465:Structure/Dynamics/Circulation (551.465) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1547866108?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Hydrometeorology&rft.atitle=On+the+Role+of+SST+Forcing+in+the+2011+and+2012+Extreme+U.S.+Heat+and+Drought%3A+A+Study+in+Contrasts&rft.au=Wang%2C+Hailan%3BSchubert%2C+Siegfried%3BKoster%2C+Randal%3BHam%2C+Yoo-Geun%3BSuarez%2C+Max&rft.aulast=Wang&rft.aufirst=Hailan&rft.date=2014-06-01&rft.volume=15&rft.issue=3&rft.spage=1255&rft.isbn=&rft.btitle=&rft.title=Journal+of+Hydrometeorology&rft.issn=1525755X&rft_id=info:doi/10.1175%2FJHM-D-13-069.1 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-07-01 N1 - Number of references - 48 N1 - Last updated - 2014-12-11 N1 - SubjectsTermNotLitGenreText - Sea surface; Planetary waves; Drying; Atmospheric circulation; Temperature differences; Extreme values; Droughts; Surface temperature; Meteorological data; Stationary Rossby waves; Hydrometeorological research; Sea surface temperature anomalies; General circulation models; Freak waves; Precipitation; Drought; Sea surface temperatures; Hydrometeorology; Weather; Heat; Oceans; Temperature; Model Studies; ISW, Indian Ocean; USA; IS, Tropical Pacific; Marine DO - http://dx.doi.org/10.1175/JHM-D-13-069.1 ER - TY - JOUR T1 - Chance and necessity in biochemistry; implications for the search for extraterrestrial biomarkers in Earth-like environments AN - 1545408562; 2014-055629 AB - In this paper, we examine a restricted subset of the question of possible alien biochemistries. That is, we look into how different life might be if it emerged in environments similar to that required for life on Earth. We advocate a principle of chance and necessity in biochemistry. According to this principle, biochemistry is in some fundamental way the sum of two processes: there is an aspect of biochemistry that is an endowment from prebiotic processes, which represents the necessity, plus an aspect that is invented by the process of evolution, which represents the chance. As a result, we predict that life originating in extraterrestrial Earth-like environments will share biochemical motifs that can be traced back to the prebiotic world but will also have intrinsic biochemical traits that are unlikely to be duplicated elsewhere as they are combinatorially path-dependent. Effective and objective strategies to search for biomarkers, and evidence for a second genesis, on planets with Earth-like environments can be built based on this principle. JF - Astrobiology AU - Davila, Alfonso F AU - McKay, Christopher P Y1 - 2014/06// PY - 2014 DA - June 2014 SP - 534 EP - 540 PB - Mary Ann Liebert, Larchmont, NY VL - 14 IS - 6 SN - 1531-1074, 1531-1074 KW - icy satellites KW - Europa Satellite KW - biochemistry KW - prebiotic chemistry KW - astrobiology KW - Mars KW - Galilean satellites KW - biomarkers KW - life origin KW - terrestrial planets KW - planets KW - meteorites KW - organic compounds KW - organic acids KW - nucleic acids KW - RNA KW - amino acids KW - DNA KW - Enceladus Satellite KW - satellites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1545408562?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Astrobiology&rft.atitle=Chance+and+necessity+in+biochemistry%3B+implications+for+the+search+for+extraterrestrial+biomarkers+in+Earth-like+environments&rft.au=Davila%2C+Alfonso+F%3BMcKay%2C+Christopher+P&rft.aulast=Davila&rft.aufirst=Alfonso&rft.date=2014-06-01&rft.volume=14&rft.issue=6&rft.spage=534&rft.isbn=&rft.btitle=&rft.title=Astrobiology&rft.issn=15311074&rft_id=info:doi/10.1089%2Fast.2014.1150 L2 - http://www.liebertpub.com/publication.aspx?pub_id=99 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Number of references - 49 N1 - PubXState - NY N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2014-07-17 N1 - SubjectsTermNotLitGenreText - amino acids; astrobiology; biochemistry; biomarkers; DNA; Enceladus Satellite; Europa Satellite; Galilean satellites; icy satellites; life origin; Mars; meteorites; nucleic acids; organic acids; organic compounds; planets; prebiotic chemistry; RNA; satellites; terrestrial planets DO - http://dx.doi.org/10.1089/ast.2014.1150 ER - TY - JOUR T1 - Field demonstration of an instrument performing automatic classification of geologic surfaces AN - 1545408487; 2014-055626 AB - This work presents a method with which to automate simple aspects of geologic image analysis during space exploration. Automated image analysis on board the spacecraft can make operations more efficient by generating compressed maps of long traverses for summary downlink. It can also enable immediate automatic responses to science targets of opportunity, improving the quality of targeted measurements collected with each command cycle. In addition, automated analyses on Earth can process large image catalogs, such as the growing database of Mars surface images, permitting more timely and quantitative summaries that inform tactical mission operations. We present TextureCam, a new instrument that incorporates real-time image analysis to produce texture-sensitive classifications of geologic surfaces in mesoscale scenes. A series of tests at the Cima Volcanic Field in the Mojave Desert, California, demonstrated mesoscale surficial mapping at two distinct sites of geologic interest. JF - Astrobiology AU - Bekker, Dmitriy L AU - Thompson, David R AU - Abbey, William J AU - Cabrol, Nathalie A AU - Francis, Raymond AU - Manatt, Ken S AU - Ortega, Kevin F AU - Wagstaff, Kiri L Y1 - 2014/06// PY - 2014 DA - June 2014 SP - 486 EP - 501 PB - Mary Ann Liebert, Larchmont, NY VL - 14 IS - 6 SN - 1531-1074, 1531-1074 KW - United States KW - textures KW - data acquisition KW - surficial geology KW - Mars KW - mapping KW - landforms KW - automated analysis KW - terrestrial planets KW - California KW - planets KW - topography KW - TextureCam instrument KW - Mojave Desert KW - classification KW - Cima volcanic field KW - San Bernardino County California KW - instruments KW - image analysis KW - real-time methods KW - field studies KW - 23:Geomorphology KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1545408487?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Astrobiology&rft.atitle=Field+demonstration+of+an+instrument+performing+automatic+classification+of+geologic+surfaces&rft.au=Bekker%2C+Dmitriy+L%3BThompson%2C+David+R%3BAbbey%2C+William+J%3BCabrol%2C+Nathalie+A%3BFrancis%2C+Raymond%3BManatt%2C+Ken+S%3BOrtega%2C+Kevin+F%3BWagstaff%2C+Kiri+L&rft.aulast=Sappington&rft.aufirst=Brenda+Kaye&rft.date=1995-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=The+relationship+between+discrimination+reversal+learning+and+performance+tasks+in+yearling+and+two-year-old+horses&rft.issn=&rft_id=info:doi/ L2 - http://www.liebertpub.com/publication.aspx?pub_id=99 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Number of references - 32 N1 - PubXState - NY N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2014-07-17 N1 - SubjectsTermNotLitGenreText - automated analysis; California; Cima volcanic field; classification; data acquisition; field studies; image analysis; instruments; landforms; mapping; Mars; Mojave Desert; planets; real-time methods; San Bernardino County California; surficial geology; terrestrial planets; TextureCam instrument; textures; topography; United States DO - http://dx.doi.org/10.1089/ast.2014.1172 ER - TY - JOUR T1 - Production and early preservation of lipid biomarkers in iron hot springs AN - 1545408012; 2014-055627 AB - The bicarbonate-buffered anoxic vent waters at Chocolate Pots hot springs in Yellowstone National Park are 51-54 degrees C, pH 5.5-6.0, and are very high in dissolved Fe(II) at 5.8-5.9 mg/L. The aqueous Fe(II) is oxidized by a combination of biotic and abiotic mechanisms and precipitated as primary siliceous nanophase iron oxyhydroxides (ferrihydrite). Four distinct prokaryotic photosynthetic microbial mat types grow on top of these iron deposits. Lipids were used to characterize the community composition of the microbial mats, link source organisms to geologically significant biomarkers, and investigate how iron mineralization degrades the lipid signature of the community. The phospholipid and glycolipid fatty acid profiles of the highest-temperature mats indicate that they are dominated by cyanobacteria and green nonsulfur filamentous anoxygenic phototrophs (FAPs). Diagnostic lipid biomarkers of the cyanobacteria include midchain branched mono- and dimethylalkanes and, most notably, 2-methylbacteriohopanepolyol. Diagnostic lipid biomarkers of the FAPs (Chloroflexus and Roseiflexus spp.) include wax esters and a long-chain tri-unsaturated alkene. Surprisingly, the lipid biomarkers resisted the earliest stages of microbial degradation and diagenesis to survive in the iron oxides beneath the mats. Understanding the potential of particular sedimentary environments to capture and preserve fossil biosignatures is of vital importance in the selection of the best landing sites for future astrobiological missions to Mars. This study explores the nature of organic degradation processes in moderately thermal Fe(II)-rich groundwater springs-environmental conditions that have been previously identified as highly relevant for Mars exploration. JF - Astrobiology AU - Parenteau, Mary N AU - Jahnke, Linda L AU - Farmer, Jack D AU - Cady, Sherry L Y1 - 2014/06// PY - 2014 DA - June 2014 SP - 502 EP - 521 PB - Mary Ann Liebert, Larchmont, NY VL - 14 IS - 6 SN - 1531-1074, 1531-1074 KW - United States KW - degradation KW - iron oxides KW - fatty acids KW - X-ray diffraction data KW - lipids KW - gas chromatograms KW - aliphatic hydrocarbons KW - microbial mats KW - Mars KW - iron KW - temperature KW - alkenes KW - Yellowstone National Park KW - waxes KW - carboxylic acids KW - springs KW - oxides KW - mineralization KW - sedimentary structures KW - pH KW - esters KW - cyanobacteria KW - biogenic structures KW - alkanes KW - ferrihydrite KW - biomarkers KW - thermal waters KW - ferrous iron KW - terrestrial planets KW - planets KW - organic compounds KW - organic acids KW - metals KW - diagenesis KW - chromatograms KW - hydrocarbons KW - hot springs KW - preservation KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1545408012?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Astrobiology&rft.atitle=Production+and+early+preservation+of+lipid+biomarkers+in+iron+hot+springs&rft.au=Parenteau%2C+Mary+N%3BJahnke%2C+Linda+L%3BFarmer%2C+Jack+D%3BCady%2C+Sherry+L&rft.aulast=Parenteau&rft.aufirst=Mary&rft.date=2014-06-01&rft.volume=14&rft.issue=6&rft.spage=502&rft.isbn=&rft.btitle=&rft.title=Astrobiology&rft.issn=15311074&rft_id=info:doi/10.1089%2Fast.2013.1122 L2 - http://www.liebertpub.com/publication.aspx?pub_id=99 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Number of references - 136 N1 - PubXState - NY N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2014-07-17 N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; alkenes; biogenic structures; biomarkers; carboxylic acids; chromatograms; cyanobacteria; degradation; diagenesis; esters; fatty acids; ferrihydrite; ferrous iron; gas chromatograms; hot springs; hydrocarbons; iron; iron oxides; lipids; Mars; metals; microbial mats; mineralization; organic acids; organic compounds; oxides; pH; planets; preservation; sedimentary structures; springs; temperature; terrestrial planets; thermal waters; United States; waxes; X-ray diffraction data; Yellowstone National Park DO - http://dx.doi.org/10.1089/ast.2013.1122 ER - TY - JOUR T1 - Organic matter on the Earth's Moon AN - 1545407686; 2014-055472 AB - Carbonaceous matter on the surfaces of black pyroclastic beads, collected from Shorty crater during the Apollo 17 mission, represents the first identification of complex organic material associated with any lunar sample. We report the chemical, physical and isotopic properties of this organic matter that together support a pre-terrestrial origin. We suggest the most probable source is through the accretion of exogenous meteoritic kerogen from micrometeorite impacts into the lunar regolith. Abiotic organic matter has been continuously delivered to the surfaces of the terrestrial planets and their moons by accretion of asteroidal and cometary material. Determining the nature, distribution and evolution of such matter in the lunar regolith has important implications for understanding the prebiotic chemical inventory of the terrestrial planets. Abstract Copyright (2014) Elsevier, B.V. JF - Geochimica et Cosmochimica Acta AU - Thomas-Keprta, Kathie L AU - Clemett, Simon J AU - Messenger, Scott AU - Ross, Daniel K AU - Le, Loan AU - Rahman, Zia AU - McKay, David S AU - Gibson, Everett K, Jr AU - Gonzalez, Carla AU - Peabody, William Y1 - 2014/06/01/ PY - 2014 DA - 2014 Jun 01 SP - 1 EP - 15 PB - Elsevier, New York, NY VL - 134 SN - 0016-7037, 0016-7037 KW - volcanic rocks KW - ion probe data KW - asteroids KW - isotopes KW - igneous rocks KW - thermal ionization mass spectra KW - mass spectra KW - meteorites KW - chemical properties KW - spectra KW - satellites KW - chemical composition KW - carbonaceous composition KW - solar system KW - accretion KW - Moon KW - biochemistry KW - cosmochemistry KW - X-ray spectra KW - TEM data KW - EDS spectra KW - terrestrial planets KW - pyroclastics KW - planets KW - physical properties KW - organic compounds KW - lunar samples KW - Raman spectra KW - comets KW - mathematical methods KW - SEM data KW - regolith KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1545407686?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Organic+matter+on+the+Earth%27s+Moon&rft.au=Thomas-Keprta%2C+Kathie+L%3BClemett%2C+Simon+J%3BMessenger%2C+Scott%3BRoss%2C+Daniel+K%3BLe%2C+Loan%3BRahman%2C+Zia%3BMcKay%2C+David+S%3BGibson%2C+Everett+K%2C+Jr%3BGonzalez%2C+Carla%3BPeabody%2C+William&rft.aulast=Thomas-Keprta&rft.aufirst=Kathie&rft.date=2014-06-01&rft.volume=134&rft.issue=&rft.spage=1&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2014.02.047 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2014-01-01 N1 - Number of references - 68 N1 - PubXState - NY N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2014-07-17 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - accretion; asteroids; biochemistry; carbonaceous composition; chemical composition; chemical properties; comets; cosmochemistry; EDS spectra; igneous rocks; ion probe data; isotopes; lunar samples; mass spectra; mathematical methods; meteorites; Moon; organic compounds; physical properties; planets; pyroclastics; Raman spectra; regolith; satellites; SEM data; solar system; spectra; TEM data; terrestrial planets; thermal ionization mass spectra; volcanic rocks; X-ray spectra DO - http://dx.doi.org/10.1016/j.gca.2014.02.047 ER - TY - JOUR T1 - Assessing Impacts of Integrating MODIS Vegetation Data in the Weather Research and Forecasting (WRF) Model Coupled to Two Different Canopy-Resistance Approaches AN - 1544018735; 20181305 AB - The impact of 8-day-averaged data from the Moderate Resolution Imaging Spectroradiometer (MODIS) sensornamely, the 1-km leaf area index, absorbed photosynthetic radiation, and land-use datais investigated for use in the Weather Research and Forecasting (WRF) model for regional weather prediction. These high-resolution, near-real-time MODIS data are hypothesized to enhance the representation of land-atmosphere interactions and to potentially improve the WRF model forecast skill for temperature, surface moisture, surface fluxes, and soil temperature. To test this hypothesis, the impact of using MODIS-based land surface data on surface energy and water budgets was assessed within the Noah land surface model with two different canopy-resistance schemes. An ensemble of six model experiments was conducted using the WRF model for a typical summertime episode over the U.S. southern Great Plains that occurred during the International H2O Project (IHOP_2002) field experiment. The six model experiments were statistically analyzed and showed some degree of improvement in surface latent heat flux and sensible heat flux, as well as surface temperature and moisture, after land use, leaf area index, and green vegetation fraction data were replaced by remotely sensed data. There was also an improvement in the WRF-simulated temperature and boundary layer moisture with MODIS data in comparison with the default U.S. Geological Survey land-use and leaf area index inputs. Overall, analysis suggests that recalibration and improvements to both the input data and the land model help to improve estimation of surface and soil parameters and boundary layer moisture and led to improvement in simulating convection in WRF runs. Incorporating updated land conditions provided the most notable improvements, and the mesoscale model performance could be further enhanced when improved land surface schemes become available. JF - Journal of Applied Meteorology and Climatology AU - Kumar, Anil AU - Chen, Fei AU - Barlage, Michael AU - Ek, Michael B AU - Niyogi, Dev AD - NASA Goddard Space Flight Center, Greenbelt, and Earth System Science Interdisciplinary Center, College Park, Maryland, and Department of Earth, Atmospheric and Planetary Sciences, Purdue University, West Lafayette, Indiana Y1 - 2014/06// PY - 2014 DA - Jun 2014 SP - 1362 EP - 1380 PB - American Meteorological Society, 45 Beacon St. Boston MA 02108-3693 United States VL - 53 IS - 6 SN - 1558-8424, 1558-8424 KW - Meteorological & Geoastrophysical Abstracts; Environment Abstracts; Sustainability Science Abstracts KW - Prediction KW - Surface temperatures KW - Photosynthesis KW - Water budget KW - Statistical analysis KW - Convection development KW - Soil KW - Climate and vegetation KW - Radiation KW - Surface fluxes KW - Meteorology KW - Climatology KW - MODIS (Moderate Resolution Imaging Spectrometer) KW - Sensible heat flux KW - Sensible heat KW - Weather KW - Soil temperatures KW - Temperature KW - Vegetation KW - Land use KW - Satellite data KW - Energy KW - Boundary layers KW - Geological surveys KW - Mesoscale models KW - Latent heat flux KW - ENA 03:Energy KW - M3 1010:Issues in Sustainable Development KW - M2 551.509.1/.5:Forecasting (551.509.1/.5) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1544018735?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Applied+Meteorology+and+Climatology&rft.atitle=Assessing+Impacts+of+Integrating+MODIS+Vegetation+Data+in+the+Weather+Research+and+Forecasting+%28WRF%29+Model+Coupled+to+Two+Different+Canopy-Resistance+Approaches&rft.au=Kumar%2C+Anil%3BChen%2C+Fei%3BBarlage%2C+Michael%3BEk%2C+Michael+B%3BNiyogi%2C+Dev&rft.aulast=Kumar&rft.aufirst=Anil&rft.date=2014-06-01&rft.volume=53&rft.issue=6&rft.spage=1362&rft.isbn=&rft.btitle=&rft.title=Journal+of+Applied+Meteorology+and+Climatology&rft.issn=15588424&rft_id=info:doi/10.1175%2FJAMC-D-13-0247.1 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-07-01 N1 - Number of references - 74 N1 - Last updated - 2015-03-20 N1 - SubjectsTermNotLitGenreText - Surface temperatures; Soil temperatures; Statistical analysis; Convection development; Land use; Climate and vegetation; Satellite data; Radiation; Surface fluxes; MODIS (Moderate Resolution Imaging Spectrometer); Climatology; Mesoscale models; Latent heat flux; Sensible heat flux; Prediction; Weather; Photosynthesis; Water budget; Temperature; Vegetation; Soil; Boundary layers; Energy; Geological surveys; Meteorology; Sensible heat DO - http://dx.doi.org/10.1175/JAMC-D-13-0247.1 ER - TY - JOUR T1 - Status of turbulence modeling for hypersonic propulsion flowpaths AN - 1541443249; 19861550 AB - This report provides an assessment of current turbulent flow calculation methods for hypersonic propulsion flowpaths, particularly the scramjet engine. Emphasis is placed on Reynolds-averaged Navier-Stokes (RANS) methods, but some discussion of newer methods such as large eddy simulation (LES) is also provided. The report is organized by considering technical issues throughout the scramjet-powered vehicle flowpath, including laminar-to-turbulent boundary layer transition, shock wave/turbulent boundary layer interactions, scalar transport modeling (specifically the significance of turbulent Prandtl and Schmidt numbers), and compressible mixing. Unit problems are primarily used to conduct the assessment. In the combustor, results from calculations of a direct connect supersonic combustion experiment are also used to address the effects of turbulence model selection and in particular settings for the turbulent Prandtl and Schmidt numbers. It is concluded that RANS turbulence modeling shortfalls are still a major limitation to the accuracy of hypersonic propulsion simulations, whether considering individual components or an overall system. Newer methods such as LES-based techniques may be promising, but are not yet at a maturity to be used routinely by the hypersonic propulsion community. The need for fundamental experiments to provide data for turbulence model development and validation is discussed. JF - Theoretical and Computational Fluid Dynamics AU - Georgiadis, Nicholas J AU - Yoder, Dennis A AU - Vyas, Manan A AU - Engblom, William A AD - NASA Glenn Research Center, Cleveland, OH, 44135, USA, georgiadis@nasa.gov Y1 - 2014/06// PY - 2014 DA - June 2014 SP - 295 EP - 318 PB - Springer Science+Business Media, Van Godewijckstraat 30 Dordrecht 3311 GX Netherlands VL - 28 IS - 3 SN - 0935-4964, 0935-4964 KW - Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Marine KW - Turbulent flow KW - Turbulent Flow KW - Hydrodynamics KW - Boundary Layers KW - Oceanic eddies KW - turbulence KW - Mixing KW - Model Studies KW - Wave interactions KW - Eddies KW - Assessments KW - Boundary layers KW - Fluid dynamics KW - Waves KW - Turbulent boundary layer KW - Turbulence KW - Modelling KW - SW 5010:Network design KW - Q2 09183:Physics and chemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1541443249?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Theoretical+and+Computational+Fluid+Dynamics&rft.atitle=Status+of+turbulence+modeling+for+hypersonic+propulsion+flowpaths&rft.au=Georgiadis%2C+Nicholas+J%3BYoder%2C+Dennis+A%3BVyas%2C+Manan+A%3BEngblom%2C+William+A&rft.aulast=Georgiadis&rft.aufirst=Nicholas&rft.date=2014-06-01&rft.volume=28&rft.issue=3&rft.spage=295&rft.isbn=&rft.btitle=&rft.title=Theoretical+and+Computational+Fluid+Dynamics&rft.issn=09354964&rft_id=info:doi/10.1007%2Fs00162-013-0316-z LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-02-01 N1 - Number of references - 88 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Turbulent flow; Boundary layers; Fluid dynamics; Oceanic eddies; Turbulence; Turbulent boundary layer; Modelling; Wave interactions; Eddies; Turbulent Flow; Hydrodynamics; Assessments; Boundary Layers; Waves; turbulence; Mixing; Model Studies; Marine DO - http://dx.doi.org/10.1007/s00162-013-0316-z ER - TY - JOUR T1 - Characteristics of Precipitation Features and Annual Rainfall during the TRMM Era in the Central Andes AN - 1540238856; 20089539 AB - The central Andes extends from 7DG to 21DGS, with its eastern boundary defined by elevation (1000 m and greater) and its western boundary by the coastline. The authors used a combination of surface observations, reanalysis, and the University of Utah Tropical Rainfall Measuring Mission (TRMM) precipitation features (PF) database to understand the characteristics of convective systems and associated rainfall in the central Andes during the TRMM era, 1998-2012. Compared to other dry (West Africa), mountainous (Himalayas), and dynamically linked (Amazon) regions in the tropics, the central Andes PF population was distinct from these other regions, with small and weak PFs dominating its cumulative distribution functions and annual rainfall totals. No more than 10% of PFs in the central Andes met any of the thresholds used to identify and define deep convection (minimum IR cloud-top temperatures, minimum 85-GHz brightness temperature, maximum height of the 40-dBZ echo). For most of the PFs, available moisture was limited (<35 mm) and instability low (<500 J kg super(-1)). The central Andes represents a largely stable, dry to arid environment, limiting system development and organization. Hence, primarily short-duration events (<60 min) characterized by shallow convection and light to lightmoderate rainfall rates (0.54.0 mm h super(-1)) were found. JF - Journal of Climate AU - Mohr, Karen I AU - Slayback, Daniel AU - Yager, Karina AD - Mesoscale Atmospheric Processes Laboratory, NASA Goddard Space Flight Center, Greenbelt, Maryland Y1 - 2014/06// PY - 2014 DA - June 2014 SP - 3982 EP - 4001 PB - American Meteorological Society, 45 Beacon St. Boston MA 02108-3693 United States VL - 27 IS - 11 SN - 0894-8755, 0894-8755 KW - Meteorological & Geoastrophysical Abstracts; Aqualine Abstracts; Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Convection KW - Rainfall KW - Arid environments KW - Pakistan, Himalayas KW - South America, Andes Mts. KW - Convection development KW - Convective systems KW - Data reanalysis KW - Surface radiation temperature KW - Rainfall Rate KW - Annual Distribution KW - USA, Utah KW - Annual rainfall KW - Climates KW - Climate KW - Temperature KW - Precipitation KW - Clouds KW - Dominant species KW - ASE, Africa KW - South America, Amazon R. KW - Elevation KW - Boundaries KW - Tropical Rainfall Measuring Mission (TRMM) KW - Brightness temperature KW - Instability KW - Q2 09148:Palaeo-studies KW - SW 5010:Network design KW - M2 551.58:Climatology (551.58) KW - AQ 00003:Monitoring and Analysis of Water and Wastes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1540238856?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Climate&rft.atitle=Characteristics+of+Precipitation+Features+and+Annual+Rainfall+during+the+TRMM+Era+in+the+Central+Andes&rft.au=Mohr%2C+Karen+I%3BSlayback%2C+Daniel%3BYager%2C+Karina&rft.aulast=Mohr&rft.aufirst=Karen&rft.date=2014-06-01&rft.volume=27&rft.issue=11&rft.spage=3982&rft.isbn=&rft.btitle=&rft.title=Journal+of+Climate&rft.issn=08948755&rft_id=info:doi/10.1175%2FJCLI-D-13-00592.1 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-06-01 N1 - Number of references - 70 N1 - Last updated - 2016-06-22 N1 - SubjectsTermNotLitGenreText - Convection; Dominant species; Rainfall; Climate; Arid environments; Surface radiation temperature; Clouds; Annual rainfall; Tropical Rainfall Measuring Mission (TRMM); Brightness temperature; Convection development; Convective systems; Precipitation; Instability; Data reanalysis; Rainfall Rate; Elevation; Climates; Temperature; Boundaries; Annual Distribution; USA, Utah; ASE, Africa; South America, Amazon R.; Pakistan, Himalayas; South America, Andes Mts. DO - http://dx.doi.org/10.1175/JCLI-D-13-00592.1 ER -