FN Thomson Reuters Web of Science™
VR 1.0
PT S
AU Johnson, WL
Mansfield, E
AF Johnson, Ward L.
Mansfield, Elisabeth
GP IEEE
TI Thermogravimetric Analysis with a Heated Quartz Crystal Microbalance
SO 2012 IEEE INTERNATIONAL FREQUENCY CONTROL SYMPOSIUM (FCS)
SE IEEE International Frequency Control Symposium
LA English
DT Proceedings Paper
CT IEEE International Frequency Control Symposium (IFCS)
CY MAY 21-24, 2012
CL Baltimore, MD
SP IEEE, UFFC
ID TEMPERATURE
AB Thermogravimetric analysis (TGA) with an SC-cut quartz crystal microbalance (QCM) was demonstrated at temperatures in the range from 20 degrees C to 450 degrees C. A measurement system was built around a crystal sensor head that was mounted in a small tube furnace. Changes in third-overtone C-mode frequencies of the crystal were measured during thermally activated decomposition and combustion of a poly(methyl methacrylate) (PMMA) film with an initial mass of approximately 6 mu g, and corresponding changes in mass Delta m were estimated through the use of the Sauerbrey equation. Noise and drift in frequencies and associated Delta m were determined through least-squares fitting and compared with commercially available high-resolution conventional TGA systems. The microbalance-based TGA (mu-TGA) system is found to have one to two orders of magnitude lower noise than high-resolution TGA at temperatures below 200 degrees C and to have at least an order of magnitude lower drift over the entire measured temperatures. However, increasing temperature dependence of crystal frequencies at elevated temperatures and noise in temperature measurements lead to noise in the determination of temperature-dependent mass above 400 degrees C that is comparable in magnitude to that of high-resolution TGA. Enhancements in performance of mu-TGA depend primarily on the implementation of reliable piezoelectric resonators with low temperature dependence over the entire measured range.
C1 [Johnson, Ward L.; Mansfield, Elisabeth] NIST, Boulder, CO 80305 USA.
RP Johnson, WL (reprint author), NIST, 325 Broadway St, Boulder, CO 80305 USA.
NR 13
TC 0
Z9 0
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1075-6787
BN 978-1-4577-1819-9
J9 P IEEE INT FREQ CONT
PY 2012
PG 5
WC Engineering, Electrical & Electronic; Physics, Applied;
Telecommunications
SC Engineering; Physics; Telecommunications
GA BEJ76
UT WOS:000316994400119
ER
PT S
AU Lirette, D
Barnes, C
Hati, A
Desalvo, JA
Nelson, CW
Howe, DA
AF Lirette, D.
Barnes, C.
Hati, A.
Desalvo, J. A.
Nelson, C. W.
Howe, D. A.
GP IEEE
TI Common-Arm Counter Propagating Phase Bridge for Vibration Sensitivity
Measurement
SO 2012 IEEE INTERNATIONAL FREQUENCY CONTROL SYMPOSIUM (FCS)
SE IEEE International Frequency Control Symposium
LA English
DT Proceedings Paper
CT IEEE International Frequency Control Symposium (IFCS)
CY MAY 21-24, 2012
CL Baltimore, MD
SP IEEE, UFFC
AB Current methods for measuring the vibration sensitivity of microwave devices are limited primarily by choice of cables connecting a stationary platform to a vibrating actuator. We experimentally compare the current ("conventional") method with a new ("modified") common-arm counter propagating (CACP) technique for evaluation of two-port devices. We demonstrate that a CACP method reduces the vibrational noise floor of an optimized measurement system at 10 GHz by up to 25 dB. Common-mode disturbances from the vibration of cables and circulators contained in the measurement loop are rejected to first order. The CACP method enables accurate measurement of devices with low vibration sensitivity. The sensitivity measurement of such devices is normally limited by a conventional measurement system's noise floor. Our system is based on similar work at optical frequencies by Nelson et al. [2]
C1 [Lirette, D.; Barnes, C.; Hati, A.; Desalvo, J. A.; Nelson, C. W.; Howe, D. A.] NIST, Div Time & Frequency, Boulder, CO 80305 USA.
RP Lirette, D (reprint author), NIST, Div Time & Frequency, Boulder, CO 80305 USA.
NR 5
TC 0
Z9 0
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1075-6787
BN 978-1-4577-1819-9
J9 P IEEE INT FREQ CONT
PY 2012
PG 4
WC Engineering, Electrical & Electronic; Physics, Applied;
Telecommunications
SC Engineering; Physics; Telecommunications
GA BEJ76
UT WOS:000316994400144
ER
PT S
AU Ludlow, AD
Sherman, JA
Lemke, ND
Beloy, K
Hinkley, N
Pizzocaro, M
Fox, RW
Oates, CW
AF Ludlow, A. D.
Sherman, J. A.
Lemke, N. D.
Beloy, K.
Hinkley, N.
Pizzocaro, M.
Fox, R. W.
Oates, C. W.
GP IEEE
TI Blackbody effects in the Yb optical lattice clock
SO 2012 IEEE INTERNATIONAL FREQUENCY CONTROL SYMPOSIUM (FCS)
SE IEEE International Frequency Control Symposium
LA English
DT Proceedings Paper
CT IEEE International Frequency Control Symposium (IFCS)
CY MAY 21-24, 2012
CL Baltimore, MD
SP IEEE, UFFC
ID STARK SHIFT
AB We report a high accuracy measurement of the differential static polarizability for the clock transition in a Yb lattice clock, a key parameter for determining the blackbody (BBR) shift of this transition. We further report efforts to determine the < 6s5d(3)D(1)parallel to D parallel to 6s6p(3)P(0)> reduced dipole matrix element, a critical ingredient in the non-static correction to the BBR shift. In all, we have reduced the largest uncertainty in the Yb lattice clock (that stemming from the BBR shift) by an order of magnitude.
C1 [Ludlow, A. D.; Sherman, J. A.; Lemke, N. D.; Beloy, K.; Hinkley, N.; Pizzocaro, M.; Fox, R. W.; Oates, C. W.] NIST, Boulder, CO 80305 USA.
RP Ludlow, AD (reprint author), NIST, 325 Broadway, Boulder, CO 80305 USA.
EM ludlow@boulder.nist.gov
RI Lemke, Nathan/L-9059-2013
OI Lemke, Nathan/0000-0003-4165-0715
NR 8
TC 0
Z9 0
U1 0
U2 3
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1075-6787
BN 978-1-4577-1819-9
J9 P IEEE INT FREQ CONT
PY 2012
PG 3
WC Engineering, Electrical & Electronic; Physics, Applied;
Telecommunications
SC Engineering; Physics; Telecommunications
GA BEJ76
UT WOS:000316994400123
ER
PT S
AU Nelson, CW
Howe, DA
AF Nelson, C. W.
Howe, D. A.
GP IEEE
TI A SUB-SAMPLING DIGITAL PM/AM NOISE MEASUREMENT SYSTEM
SO 2012 IEEE INTERNATIONAL FREQUENCY CONTROL SYMPOSIUM (FCS)
SE IEEE International Frequency Control Symposium
LA English
DT Proceedings Paper
CT IEEE International Frequency Control Symposium (IFCS)
CY MAY 21-24, 2012
CL Baltimore, MD
SP IEEE, UFFC
AB A digital phase/amplitude modulation (PM/AM) noise-measurement system (DNMS) implementing field-programmable gate array (FPGA)-based digital down-converters (DDCs), and 250 MHz analog-to-digital converters (ADCs) is reported. Performance in the first, baseband Nyquist region shows white phase-noise floors of less than -180 dBc/Hz. With proper pre-filtering of the input signals to prevent undesired aliasing, high-bandwidth track-and-hold amplifiers (THA) extend the operating range of the DNMS to microwave frequencies. Preliminary testing with an 18 GHz THA shows residual white phase-noise floors at 10 GHz of less than -160 dBc/Hz.
C1 [Nelson, C. W.; Howe, D. A.] NIST, Div Time & Frequency, Boulder, CO 80305 USA.
RP Nelson, CW (reprint author), NIST, Div Time & Frequency, Boulder, CO 80305 USA.
EM craig.nelson@boulder.nist.gov
NR 7
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1075-6787
BN 978-1-4577-1819-9
J9 P IEEE INT FREQ CONT
PY 2012
PG 4
WC Engineering, Electrical & Electronic; Physics, Applied;
Telecommunications
SC Engineering; Physics; Telecommunications
GA BEJ76
UT WOS:000316994400161
ER
PT S
AU Papp, SB
Del'Haye, P
Diddams, SA
AF Papp, Scott B.
Del'Haye, Pascal
Diddams, Scott A.
GP IEEE
TI Mechanical stabilization of a microrod-resonator optical frequency comb
SO 2012 IEEE INTERNATIONAL FREQUENCY CONTROL SYMPOSIUM (FCS)
SE IEEE International Frequency Control Symposium
LA English
DT Proceedings Paper
CT IEEE International Frequency Control Symposium (IFCS)
CY MAY 21-24, 2012
CL Baltimore, MD
SP IEEE, UFFC
ID GENERATION
AB We present line-spacing frequency control of a microresonator-based optical frequency comb by way of mechanical actuation. Using this novel technique, we have achieved a record level of residual stability in the line spacing of 5 x 10(15) for 1 s averaging. This demonstrates the potential of microresonator combs to support clocks with stability derived from optical frequencies. This work has been performed with newly developed microrod optical resonators fabricated by use of CO2-laser machining.
C1 [Papp, Scott B.; Del'Haye, Pascal; Diddams, Scott A.] NIST, Time & Frequency Div 688, Boulder, CO 80305 USA.
RP Papp, SB (reprint author), NIST, Time & Frequency Div 688, 325 Broadway MS 847, Boulder, CO 80305 USA.
EM scott.papp@nist.gov
RI Diddams, Scott/L-2819-2013; Del'Haye, Pascal/G-2588-2016
OI Del'Haye, Pascal/0000-0002-6517-6942
NR 22
TC 0
Z9 0
U1 0
U2 7
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1075-6787
BN 978-1-4577-1819-9
J9 P IEEE INT FREQ CONT
PY 2012
PG 3
WC Engineering, Electrical & Electronic; Physics, Applied;
Telecommunications
SC Engineering; Physics; Telecommunications
GA BEJ76
UT WOS:000316994400166
ER
PT S
AU Rey, AM
Martin, MJ
Swallows, MD
Bishof, M
Benko, C
Blatt, S
Von Stecher, J
Gorshkov, A
Ye, J
AF Rey, A. M.
Martin, M. J.
Swallows, M. D.
Bishof, M.
Benko, C.
Blatt, S.
Von Stecher, J.
Gorshkov, A.
Ye, J.
GP IEEE
TI Probing many-body spin interactions with an optical lattice clock
SO 2012 IEEE INTERNATIONAL FREQUENCY CONTROL SYMPOSIUM (FCS)
SE IEEE International Frequency Control Symposium
LA English
DT Proceedings Paper
CT IEEE International Frequency Control Symposium (IFCS)
CY MAY 21-24, 2012
CL Baltimore, MD
SP IEEE, UFFC
AB Advances in ultra-stable lasers now permit sub-Hz resolution of optical atomic transitions. At this level, weak interactions by any ordinary scale can in fact dominate the dynamics of the interrogated atoms, even for spin polarized fermions at ultralow temperatures. Contrary to results obtained in radio frequency spectroscopy of alkali fermionic atoms, optical spectroscopy of 87 Sr and 171 Yb has revealed density dependent frequency shifts of the 1 S0 - 3 P 0 "clock" transition. Understanding interactions in these systems is necessary to improve their accuracy and stability. Moreover, such an understanding will en-able optical lattice clock systems to serve as quantum simulators for open, driven, strongly-interacting quantum systems at the mesoscopic scale. In this talk we presented our progress towards a comprehensive evaluation and understanding of the interactions present during spectroscopy of the 87 Sr clock transition under various operating conditions. Our studies indicate that a mean-field solution of a master equation is sufficient to capture the many-body dynamics of alkaline earth atom clocks. Entering the regime in which a treatment beyond mean-field is required for a proper description of the clock dynamics is under immediate experimental reach.
C1 [Rey, A. M.; Martin, M. J.; Swallows, M. D.; Bishof, M.; Benko, C.; Von Stecher, J.; Ye, J.] NIST, JILA, Boulder, CO 80309 USA.
[Gorshkov, A.] CALTECH, Inst Quantum Informat & Matter, Pasadena, CA 91125 USA.
[Blatt, S.] Harvard Univ, Cambridge, MA 02138 USA.
RP Rey, AM (reprint author), NIST, JILA, Boulder, CO 80309 USA.
EM arey@jilau1.colorado.edu
RI Benko, Craig/L-2678-2015; Blatt, Sebastian/F-8986-2012
OI Blatt, Sebastian/0000-0003-2466-9967
FU ARO DARPA OLE; NIST; NSF (PFC, IQIM and PIF grants),; AFOSR; NDSEG; Lee
A. DuBridge Foundation; Gordon and Betty Moore Foundation.
FX We acknowledge funding support for this work by ARO DARPA OLE, NIST, NSF
(PFC, IQIM and PIF grants), AFOSR, NDSEG, the Lee A. DuBridge Foundation
and the Gordon and Betty Moore Foundation.
NR 10
TC 0
Z9 0
U1 0
U2 4
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1075-6787
BN 978-1-4577-1819-9
J9 P IEEE INT FREQ CONT
PY 2012
PG 1
WC Engineering, Electrical & Electronic; Physics, Applied;
Telecommunications
SC Engineering; Physics; Telecommunications
GA BEJ76
UT WOS:000316994400058
ER
PT S
AU Holloway, CL
Smith, R
Dunlap, C
Pirkl, R
Ladbury, J
Young, W
Hansell, B
Shadish, M
Sullivan, K
AF Holloway, C. L.
Smith, R.
Dunlap, C.
Pirkl, R.
Ladbury, J.
Young, W.
Hansell, B.
Shadish, M.
Sullivan, K.
GP IEEE
TI Validation of a One-Antenna Reverberation-Chamber Technique for
Estimating the Total and Radiation Efficiency of an Antenna
SO 2012 IEEE INTERNATIONAL SYMPOSIUM ON ELECTROMAGNETIC COMPATIBILITY (EMC)
SE IEEE International Symposium on Electromagnetic Compatibility
LA English
DT Proceedings Paper
CT IEEE International Symposium on Electromagnetic Compatibility (EMC)
CY AUG 05-10, 2012
CL Pittsburgh, PA
SP IEEE, Electromagnet Compatibil Soc, China Electrotechn Soc, Evaluat Engn (EE), ENR, Microwave Digest, Microwave Journal, RF Globalnet, SAFETY & EMC Magazine, In Compliance Magazine, ITEM Media, ETS LINDGREN, Keystone Compliance, Retlif Testing Labs, Andro Computat Solutions, LLC, MIDCOM, Wurth Elekt, Gauss Instruments GmbH
AB Because of the statistical environment created inside reverberation chambers, they are ideally suited for performing radiated power measurements of either an antenna or a device under test, and as such, it is possible to determine their efficiencies. In previous work we presented a one-antenna approach that allows for determining the efficiency of a single antenna under test without the need for a reference antenna. In this paper, we validate this one-antenna approach by showing comparisons with other methods (comparing measurements made in different test facilities and comparisons to other techniques, including numerical calculations) for various antennas.
C1 [Holloway, C. L.; Dunlap, C.; Pirkl, R.; Ladbury, J.; Young, W.] NIST, Electromagnet Div, 325 Broadway, Boulder, CO 80305 USA.
[Smith, R.; Hansell, B.; Shadish, M.; Sullivan, K.] ITT Excelis, Frederickburg, VA 22406 USA.
RP Holloway, CL (reprint author), NIST, Electromagnet Div, 325 Broadway, Boulder, CO 80305 USA.
EM holloway@boulder.nist.gov
NR 10
TC 1
Z9 1
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2158-110X
BN 978-1-4673-2060-3
J9 IEEE INT SYMP ELEC
PY 2012
BP 205
EP 209
PG 5
WC Engineering, Electrical & Electronic
SC Engineering
GA BEJ75
UT WOS:000316991700039
ER
PT S
AU Dunlap, CR
Holloway, CL
Pirkl, R
Ladbury, J
Kuester, EF
Hill, DA
van de Beek, S
AF Dunlap, C. R.
Holloway, C. L.
Pirkl, R.
Ladbury, J.
Kuester, E. F.
Hill, D. A.
van de Beek, S.
GP IEEE
TI Characterizing Reverberation Chambers by Measurements of the Enhanced
Backscatter Coefficient
SO 2012 IEEE INTERNATIONAL SYMPOSIUM ON ELECTROMAGNETIC COMPATIBILITY (EMC)
SE IEEE International Symposium on Electromagnetic Compatibility
LA English
DT Proceedings Paper
CT IEEE International Symposium on Electromagnetic Compatibility (EMC)
CY AUG 05-10, 2012
CL Pittsburgh, PA
SP IEEE, Electromagnet Compatibil Soc, China Electrotechn Soc, Evaluat Engn (EE), ENR, Microwave Digest, Microwave Journal, RF Globalnet, SAFETY & EMC Magazine, In Compliance Magazine, ITEM Media, ETS LINDGREN, Keystone Compliance, Retlif Testing Labs, Andro Computat Solutions, LLC, MIDCOM, Wurth Elekt, Gauss Instruments GmbH
AB Reverberation chambers (RC) are becoming a popular alternative testing facility for a wide range of electromagnetic applications. In order for these tests to have any meaning, we need to ensure that the RC is performing in a desired manner. One common approach for characterizing the RC is based on a measurement of field uniformity in the chamber. In this paper, we present an alternative technique for characterizing a RC, based on the enhanced backscatter coefficient (a quantity analogous to the enhanced backscatter that has been derived for scattering by a random medium) measured in the chamber.
C1 [Dunlap, C. R.; Holloway, C. L.; Pirkl, R.; Ladbury, J.; Hill, D. A.; van de Beek, S.] NIST, Electromagnet Div, 325 Broadway, Boulder, CO 80305 USA.
[Kuester, E. F.] Univ Colorado, Dept Elect Comp & Energy Eng, Boulder, CO USA.
[van de Beek, S.] Univ Twente, Enschede Noord, Netherlands.
RP Dunlap, CR (reprint author), NIST, Electromagnet Div, 325 Broadway, Boulder, CO 80305 USA.
EM holloway@boulder.nist
NR 11
TC 2
Z9 2
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2158-110X
BN 978-1-4673-2060-3
J9 IEEE INT SYMP ELEC
PY 2012
BP 210
EP 215
PG 6
WC Engineering, Electrical & Electronic
SC Engineering
GA BEJ75
UT WOS:000316991700040
ER
PT S
AU Coder, JB
Ladbury, JM
Golkowski, M
AF Coder, Jason B.
Ladbury, John M.
Golkowski, Mark
GP IEEE
TI On Lower Bound Antenna Efficiency Measurements in a Reverberation
Chamber
SO 2012 IEEE INTERNATIONAL SYMPOSIUM ON ELECTROMAGNETIC COMPATIBILITY (EMC)
SE IEEE International Symposium on Electromagnetic Compatibility
LA English
DT Proceedings Paper
CT IEEE International Symposium on Electromagnetic Compatibility (EMC)
CY AUG 05-10, 2012
CL Pittsburgh, PA
SP IEEE, Electromagnet Compatibil Soc, China Electrotechn Soc, Evaluat Engn (EE), ENR, Microwave Digest, Microwave Journal, RF Globalnet, SAFETY & EMC Magazine, In Compliance Magazine, ITEM Media, ETS LINDGREN, Keystone Compliance, Retlif Testing Labs, Andro Computat Solutions, LLC, MIDCOM, Wurth Elekt, Gauss Instruments GmbH
AB This paper addresses a few specific aspects of measuring the lower bound of antenna efficiency in a reverberation chamber. While the initial method for measuring the lower bound of efficiency has been presented, three key revisions are discussed here: (1) an updated notation, (2) a revised method for calculating the lower bound of efficiency, and (3) a new method for combining stirring techniques. The updated antenna model notation is designed to be more general and applicable to situations with n antennas. The revised efficiency calculation targets an issue of the original method where the minimum bounding circle exceeded the unit circle. Introducing a new method of combining stirring techniques addresses a weakness of the original model. For the model to work well, it needs a very large number of paddle positions that generate a good statistical approximation of the environment (in this case, a reverberation chamber). As a possible remedy to this weakness, we propose a different way of combining stirring techniques.
C1 [Coder, Jason B.; Ladbury, John M.] NIST, 325 Broadway,Mail Stop 687-02, Boulder, CO 80305 USA.
[Golkowski, Mark] Univ Colorado Denver St, Dept Elect Engn, Denver, CO 80204 USA.
RP Coder, JB (reprint author), NIST, 325 Broadway,Mail Stop 687-02, Boulder, CO 80305 USA.
EM jason.coder@nist.gov; john.ladbury@nist.gov; mark.golkowski@ucdenver.edu
NR 5
TC 4
Z9 4
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2158-110X
BN 978-1-4673-2060-3
J9 IEEE INT SYMP ELEC
PY 2012
BP 216
EP 221
PG 6
WC Engineering, Electrical & Electronic
SC Engineering
GA BEJ75
UT WOS:000316991700041
ER
PT S
AU Polyakov, SV
Flagg, EB
Thomay, T
Solomon, GS
AF Polyakov, Sergey V.
Flagg, Edward B.
Thomay, Tim
Solomon, Glenn S.
BE Khrennikov, A
Atmanspacher, H
Migdall, A
Polyakov, S
TI Dynamics of a pulsed single photon source
SO QUANTUM THEORY: RECONSIDERATION OF FOUNDATIONS 6
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT International Conference on Quantum Theory - Reconsideration of
Foundations-6 (QTRF6)
CY JUN 11-14, 2012
CL Vaxjo, SWEDEN
SP Linnaeus Univ
DE Single Photons; Temporal Dynamics; Quantum State Purity; Foundations of
Quantum Mechanics
ID LINEAR OPTICS; QUANTUM; INTERFERENCE
AB We propose and demonstrate a method for an independent verification of a degree of single photon purity and coherence applicable for all single-photon emitters used in pulsed mode. Using two-time second-order correlation measurements, we reconstruct the dynamics of the nonclassical photon wavepacket. This reveals the temporal evolution of the photon field during the excitation-relaxation cycle of an emitter. The technique allows for the simultaneous measurement of multiphoton content and decoherence. Here we applied this technique to characterize a nonclassical state produced from a single InAs quantum dot (QD). We experimentally observe variations in the degree of multiphoton content and coherence of the wavepacket. A rate equation is introduced to explain multiphoton variations of our source and is found to describe the observed two-dimensional second-order correlation function accurately.
C1 [Polyakov, Sergey V.; Flagg, Edward B.; Thomay, Tim; Solomon, Glenn S.] NIST, Joint Quantum Inst, Gaithersburg, MD 20899 USA.
RP Polyakov, SV (reprint author), NIST, Joint Quantum Inst, Gaithersburg, MD 20899 USA.
RI Flagg, Edward/G-2897-2013
OI Flagg, Edward/0000-0002-8065-4092
FU NSF Physics Frontier Center at the Joint Quantum Institute.
FX We acknowledge partial support from the NSF Physics Frontier Center at
the Joint Quantum Institute.
NR 18
TC 1
Z9 1
U1 0
U2 3
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-1126-5
J9 AIP CONF PROC
PY 2012
VL 1508
BP 67
EP 74
DI 10.1063/1.4773117
PG 8
WC Physics, Applied; Physics, Multidisciplinary
SC Physics
GA BEK60
UT WOS:000317107200006
ER
PT B
AU Shi, K
Shu, YT
Lin, S
Wang, JS
Luo, JR
AF Shi, Kai
Shu, Yantai
Lin, Sheng
Wang, Jinsong
Luo, Jiarong
GP IEEE
TI A MAC Layer Congestion Control Method to Achieve High Network
Performance for EAST Experiment
SO 2012 18TH IEEE-NPSS REAL TIME CONFERENCE (RT)
LA English
DT Proceedings Paper
CT 18th IEEE-NPSS Real Time Conference (RT)
CY JUN 09-15, 2012
CL Univ Calif, U S Dept Energy, Lawrence Berkeley Natl Lab (Berkelly Lab),
Berkeley, CA
SP IEEE, Nucl & Plasma Sci Soc, Univ Calif
HO Univ Calif, U S Dept Energy, Lawrence Berkeley Natl Lab (Berkelly Lab)
ID PROTOCOL; TCP
AB Many applications would require fast data transfer in Wireless Local Area Networks (WLANs). A representative example is that EAST experiment data are retrieved by some physics researchers using the Transmission Control Protocol (TCP). However, due to the high contention degree and the high error rate in wireless networks, the packets may be loss for wireless reasons but not for congestion. This will greatly degrade the TCP performance. On one hand, the wireless packet loss is not congestion, but the traditional TCP assumes that every packet drop is congestion and thus decreases its congestion window, which will degrade its performance. On the other hand, due to the MAC layer retransmission policy employed by the IEEE 802.11 DCF mechanism, the lost packets at the MAC layer will be retransmitted for some times. Thus the waiting time of the packets in the MAC layer queue will be increased. So if we ignore all the packet loss for wireless reasons as the other improved mechanisms do, the network work congestion will be aggravated and its performance will be degraded.
To alleviate the impact of the wireless packet loss to TCP in WLANs, this paper proposes a MAC layer congestion control method which is implemented at the end wireless nodes based on IEEE 802.11b DCF mechanism. At first, we propose a concept of MAC layer congestion window which means the MAC layer will send all the packets in a window when it gets access to the wireless channel, other than just sends only one packet as the traditional DCF mechanism does. Then our congestion control mechanism adjusts the MAC layer congestion window based on the contention degree and the MAC layer packet loss rate. If the MAC layer contention degree or packet error rate is high, we will increase the congestion window to improve the successful transmission rate, and we will decrease the congestion window when the packet loss rate is lower than the average wireless packet loss rate. We also use a threshold to control the increase of the congestion window. The threshold is set according to the number of wireless nodes. By performing wireless congestion control at the MAC layer, our mechanism can mitigate the effect of wireless loss to TCP, and therefore improve the TCP performance. The simulation and experiment results show that our mechanism can have better performance than traditional MAC layer mechanisms in WLANs.
C1 [Shi, Kai; Lin, Sheng; Wang, Jinsong] Tianjin Univ Technol, Sch Comp & Commun Engn, Tianjin 300191, Peoples R China.
[Shi, Kai; Shu, Yantai] Tianjin Univ, Dept Comp Sci, Tianjin 300072, Peoples R China.
[Luo, Jiarong] Acad Sinica, Inst Plasma Phys, Hefei 230031, Peoples R China.
[Luo, Jiarong] Natl Inst Stand & Technol, Boulder, CO 80303 USA.
RP Shi, K (reprint author), Tianjin Univ Technol, Sch Comp & Commun Engn, Tianjin 300191, Peoples R China.
EM shikai0229@tju.edu.cn; ytshu@tju.edu.cn; linsheng@tjut.edu.cn;
jswang@tjut.edu.cn; jr_luo@ipp.ac.cn
FU National Natural Science Foundation of China ( NSFC) [61170301,
61072063]; Key Project in the Science and Technology Pillar Program of
Tianjin [08ZCKFGX00600]; ducation commission project [20110801];
Information Technology Project of Tianjin [091052012]; ministry of
education key laboratories of Computer vision and system
FX This work was supported in part by the National Natural Science
Foundation of China ( NSFC) under Grant 61170301 and 61072063, a Key
Project in the Science and Technology Pillar Program of Tianjin (#
08ZCKFGX00600), an education commission project under grant 20110801 and
an Information Technology Project of Tianjin (# 091052012), and also
supported in part by ministry of education key laboratories of Computer
vision and system.
NR 11
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-4673-1082-6; 978-1-4673-1083-3
PY 2012
PG 4
WC Computer Science, Hardware & Architecture; Engineering, Electrical &
Electronic
SC Computer Science; Engineering
GA BEH30
UT WOS:000316572100114
ER
PT B
AU Xoplaki, E
Trigo, RM
Garcia-Herrera, R
Barriopedro, D
D'Andrea, F
Fischer, EM
Gimeno, L
Gouveia, C
Hernandez, E
Kuglitsch, FG
Mariotti, A
Nieto, R
Pinto, JG
Pozo-Vazquez, D
Saaroni, H
Toreti, A
Trigo, IF
Vicente-Serrano, SM
Yiou, P
Ziv, B
AF Xoplaki, Elena
Trigo, Ricardo M.
Garcia-Herrera, Ricardo
Barriopedro, David
D'Andrea, Fabio
Fischer, Erich M.
Gimeno, Luis
Gouveia, Celia
Hernandez, Emiliano
Kuglitsch, Franz G.
Mariotti, Annarita
Nieto, Raquel
Pinto, Joaquim G.
Pozo-Vazquez, David
Saaroni, Hadas
Toreti, Andrea
Trigo, Isabel F.
Vicente-Serrano, Sergio M.
Yiou, Pascal
Ziv, Baruch
BE Lionello, P
TI Large-Scale Atmospheric Circulation Driving Extreme Climate Events in
the Mediterranean and its Related Impacts
SO CLIMATE OF THE MEDITERRANEAN REGION: FROM THE PAST TO THE FUTURE
SE Elsevier Insights
LA English
DT Article; Book Chapter
ID NORTH-ATLANTIC OSCILLATION; 2003 HEAT-WAVE; NINO-SOUTHERN-OSCILLATION;
DROUGHT SEVERITY INDEX; SUMMER MOISTURE VARIABILITY; AIR-TEMPERATURE
VARIABILITY; GLOBAL LAND PRECIPITATION; DIFFERENT TIME-SCALES; SEA-LEVEL
RISE; IBERIAN PENINSULA
C1 [Xoplaki, Elena] Univ Giessen, Dept Geog, D-35390 Giessen, Germany.
[Xoplaki, Elena; Kuglitsch, Franz G.] Univ Bern, Inst Geog Climatol & Meteorol, Bern, Switzerland.
[Trigo, Ricardo M.; Barriopedro, David; Gouveia, Celia; Trigo, Isabel F.] Univ Lisbon, IDL, P-1699 Lisbon, Portugal.
[Trigo, Ricardo M.; Gouveia, Celia] Univ Lusofona, Lisbon, Portugal.
[Garcia-Herrera, Ricardo; Barriopedro, David; Hernandez, Emiliano] Univ Complutense Madrid, Dept Astrofis & CC Atmosfera, Inst Geociencias UCM CSIC, Madrid, Spain.
[D'Andrea, Fabio] LMD, Paris, France.
[Fischer, Erich M.] ETH, Inst Atmospher & Climate Sci, Zurich, Switzerland.
[Gimeno, Luis; Nieto, Raquel] Univ Vigo, Ephyslab, Fac Ciencias Ourense, Orense, Spain.
[Mariotti, Annarita] NOAA, Off Atmospher & Ocean Res, Silver Spring, MD USA.
[Pinto, Joaquim G.] Univ Cologne, Inst Geophys & Meteorol, Cologne, Germany.
[Pozo-Vazquez, David] Univ Jaen, Dept Phys, Jaen, Spain.
[Saaroni, Hadas] Tel Aviv Univ, Dept Geog & Human Environm, IL-69978 Tel Aviv, Israel.
[Trigo, Isabel F.] Univ Lisbon, Inst Meteorol, P-1699 Lisbon, Portugal.
[Vicente-Serrano, Sergio M.] CSIC, Inst Pirena Ecol, Zaragoza, Spain.
[Yiou, Pascal] LSCE, Gif Sur Yvette, France.
[Yiou, Pascal] CEA CNRS UVSQ, Gif Sur Yvette, France.
[Yiou, Pascal] IPSL, Gif Sur Yvette, France.
[Ziv, Baruch] Open Univ Israel, Dept Nat Sci, Raanana, Israel.
RP Xoplaki, E (reprint author), Univ Giessen, Dept Geog, D-35390 Giessen, Germany.
RI Pinto, Joaquim/A-7352-2009; Fischer, Erich/B-6067-2011; Vicente-Serrano,
Sergio M./G-3104-2012; Trigo, Ricardo/B-7044-2008;
OI Nieto, Raquel/0000-0002-8984-0959; Trigo, Isabel/0000-0001-8640-9170;
Pinto, Joaquim/0000-0002-8865-1769; Fischer, Erich/0000-0003-1931-6737;
Vicente-Serrano, Sergio M./0000-0003-2892-518X; GARCIA HERRERA, RICARDO
FRANCISCO/0000-0002-3845-7458; Trigo, Ricardo/0000-0002-4183-9852;
Gouveia, Celia/0000-0002-3147-5696
NR 273
TC 12
Z9 12
U1 0
U2 3
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
BN 978-0-12-391477-4; 978-0-12-416042-2
J9 ELSEV INSIGHT
PY 2012
BP 347
EP 417
DI 10.1016/B978-0-12-416042-2.00006-9
PG 71
WC Environmental Sciences; Meteorology & Atmospheric Sciences
SC Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences
GA BEH16
UT WOS:000316557000009
ER
PT S
AU Fox, DM
Temburni, S
Novy, M
Flynn, L
Zammarano, M
Kim, YS
Gilman, JW
Davis, RD
AF Fox, Douglas M.
Temburni, Srilatha
Novy, Melissa
Flynn, Laura
Zammarano, Mauro
Kim, Yeon S.
Gilman, Jeffrey W.
Davis, Rick D.
BE Morgan, AB
Wilkie, CA
Nelson, GL
TI Thermal and Burning Properties of Poly(lactic acid) Composites Using
Cellulose-Based Intumescing Flame Retardants
SO FIRE AND POLYMERS VI: NEW ADVANCES IN FLAME RETARDANT CHEMISTRY AND
SCIENCE
SE ACS Symposium Series
LA English
DT Proceedings Paper
CT 6th Fire and Polymers Symposium
CY MAR 25-29, 2012
CL San Diego, CA
SP ACS, Div Polym Mat Sci & Engn
ID FIBERS; SUSTAINABILITY; RESISTANCE; PYROLYSIS
AB Poly(lactic acid) was flame retarded using cellulose-based intumescing flame retardants. Cellulose was found to be an excellent carbon source, and when added in combination with ammonium polyphosphate (APP), PLA composites exhibited good thermal stabilities and UL-94 ratings of V-0. Nanofibrillated cellulose was phosphorylated to eliminate the need for APP. The fibers were further modified by quaternization and with glycidyl phenyl POSS to increase the char yield during pyrolysis. Fibers were analyzed by elemental analysis, potentiometric titration, and thermogravimetric analysis. The composites prepared without APP exhibited good thermal stability, but they failed the UL-94 vertical burn test.
C1 [Fox, Douglas M.; Temburni, Srilatha; Novy, Melissa; Flynn, Laura; Zammarano, Mauro] American Univ, Dept Chem, Washington, DC 20016 USA.
[Fox, Douglas M.; Zammarano, Mauro; Kim, Yeon S.; Davis, Rick D.] Natl Inst Stand & Technol, Engn Lab, Fire Res Div, Gaithersburg, MD 20899 USA.
[Gilman, Jeffrey W.] Natl Inst Stand & Technol, Mat Measurement Lab, Polymers Div, Gaithersburg, MD 20899 USA.
[Fox, Douglas M.; Zammarano, Mauro; Kim, Yeon S.] NIST, Gaithersburg, MD 20899 USA.
RP Fox, DM (reprint author), American Univ, Dept Chem, Washington, DC 20016 USA.
EM dfox@american.edu
RI KIM, YEON SEOK/J-5864-2012
NR 22
TC 2
Z9 2
U1 0
U2 5
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 SIXTEENTH ST NW, WASHINGTON, DC 20036 USA
SN 0097-6156
BN 978-0-8412-2780-4
J9 ACS SYM SER
JI ACS Symp. Ser.
PY 2012
VL 1118
BP 223
EP +
PG 3
WC Polymer Science
SC Polymer Science
GA BEC72
UT WOS:000316088700016
ER
PT S
AU Zammarano, M
Matko, S
Kramer, RH
Davis, RD
Gilman, JW
Sung, LP
Fox, DM
Mehta, S
AF Zammarano, Mauro
Matko, Szabolcs
Kraemer, Roland H.
Davis, Rick D.
Gilman, Jeffrey W.
Sung, Li Piin
Fox, Douglas M.
Mehta, Shivani
BE Morgan, AB
Wilkie, CA
Nelson, GL
TI Smoldering in Flexible Polyurethane Foams: The Effect of Foam Morphology
SO FIRE AND POLYMERS VI: NEW ADVANCES IN FLAME RETARDANT CHEMISTRY AND
SCIENCE
SE ACS Symposium Series
LA English
DT Proceedings Paper
CT 6th Fire and Polymers Symposium
CY MAR 25-29, 2012
CL San Diego, CA
SP ACS, Div Polym Mat Sci & Engn
ID COMBUSTION; PROPAGATION
AB Flexible polyurethane foams with different cell morphology (cell size and fraction of open cells) were prepared. The effect of foam morphology on smoldering was assessed. Cell-size, in combination with air permeability, appeared to be a good indicator for smoldering propensity in the range of formulations investigated here.
C1 [Zammarano, Mauro; Matko, Szabolcs; Kraemer, Roland H.; Davis, Rick D.; Fox, Douglas M.] NIST, Fire Res Div, Engn Lab, Gaithersburg, MD 20899 USA.
[Gilman, Jeffrey W.] NIST, Div Polymers, Mat Measurements Lab, Gaithersburg, MD 20899 USA.
[Gilman, Jeffrey W.] NIST, Engn Lab, Gaithersburg, MD 20899 USA.
[Sung, Li Piin] NIST, Mat & Struct Syst Div, Engn Lab, Gaithersburg, MD 20899 USA.
[Mehta, Shivani] US Consumer Product Safety Commiss, Directorate Engn Sci, Rockville, MD 20850 USA.
RP Zammarano, M (reprint author), NIST, Fire Res Div, Engn Lab, Gaithersburg, MD 20899 USA.
EM mauro.zammarano@nist.gov
NR 22
TC 1
Z9 1
U1 1
U2 6
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 SIXTEENTH ST NW, WASHINGTON, DC 20036 USA
SN 0097-6156
BN 978-0-8412-2780-4
J9 ACS SYM SER
JI ACS Symp. Ser.
PY 2012
VL 1118
BP 459
EP +
PG 4
WC Polymer Science
SC Polymer Science
GA BEC72
UT WOS:000316088700029
ER
PT B
AU Chirgwin, C
Crowley, TP
Fang, WH
LeGolvan, DX
AF Chirgwin, Caitlin
Crowley, Thomas P.
Fang, Weihai
LeGolvan, Denis X.
GP IEEE
TI Comparison of Power Ratio and Vector Network Analyzer Techniques for
Measuring Attenuation
SO 80TH ARFTG MICROWAVE MEASUREMENT CONFERENCE: ADVANCES IN WIRELESS
COMMUNICATIONS TEST AND MEASUREMENTS
LA English
DT Proceedings Paper
CT 80th ARFTG Microwave Measurement Conference (ARFTG) - Advances in
Wireless Communications Test and Measurements
CY NOV 29-30, 2012
CL San Diego, CA
SP IEEE, ARFTG, MTT-S
DE scattering parameters; vector network analyzer; microwave measurements;
microwave power; uncertainty
ID ONLINE ACCURACY ASSESSMENT; DUAL 6-PORT ANA
AB By using a power ratio technique, we have lowered our uncertainty for attenuation measurements by a factor of about 4 (typical) when compared to our vector network analyzer uncertainty analysis. The power ratio technique is applicable to insertable 2-port devices with low reflection coefficients such as airlines and attenuators. The method is illustrated with 3 coaxial devices over a frequency range of 2-18 GHz and 2 rectangular waveguide devices over a frequency range of 50-75 GHz. Our results suggest that a significantly lower attenuation uncertainty could be justified by a re-analysis of the vector network analyzer measurements.
C1 [Chirgwin, Caitlin] St Josephs Univ, Dept Math, Philadelphia, PA 19131 USA.
[Crowley, Thomas P.; LeGolvan, Denis X.] Natl Inst Stand & Technol, Div Elect, Boulder, CO 80305 USA.
[Fang, Weihai] Beijing Inst Radio Metrol & Measurement, Beijing, Peoples R China.
RP Chirgwin, C (reprint author), St Josephs Univ, Dept Math, Philadelphia, PA 19131 USA.
EM crowley@boulder.nist.gov
FU U. S. government
FX This work is partially supported by the U. S. government, and is not
subject to U. S. copyright.
NR 8
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-4673-4820-1; 978-1-4673-4817-1
PY 2012
PG 6
WC Telecommunications
SC Telecommunications
GA BEJ81
UT WOS:000317004000016
ER
PT B
AU Jargon, JA
Arz, U
Williams, DF
AF Jargon, Jeffrey A.
Arz, Uwe
Williams, Dylan F.
GP IEEE
TI Characterizing WR-8 Waveguide-to-CPW Probes Using Two Methods
Implemented within the NIST Uncertainty Framework
SO 80TH ARFTG MICROWAVE MEASUREMENT CONFERENCE: ADVANCES IN WIRELESS
COMMUNICATIONS TEST AND MEASUREMENTS
LA English
DT Proceedings Paper
CT 80th ARFTG Microwave Measurement Conference (ARFTG) - Advances in
Wireless Communications Test and Measurements
CY NOV 29-30, 2012
CL San Diego, CA
SP IEEE, ARFTG, MTT-S
DE Characterize; compare; coplanar waveguide; network analyzer; probe;
rectangular waveguide; uncertainty
AB We individually characterize and provide uncertainties for a pair of WR-8 rectangular waveguide-to-coplanar waveguide (CPW) probes over a frequency range of 90 to 140 GHz utilizing two methods implemented within the NIST Microwave Uncertainty Framework. The first method consists of a two-tier approach, where a vector network analyzer (VNA) calibration is first performed in rectangular waveguide, and then a second-tier calibration is performed on-wafer. The second method determines the scattering parameters of the probes from two one-tier calibrations. We show that the two methods yield nearly equivalent results and uncertainties.
C1 [Jargon, Jeffrey A.; Williams, Dylan F.] NIST, Boulder, CO 80305 USA.
[Arz, Uwe] Phys Tech Bundesanstalt, D-38116 Braunschweig, Germany.
RP Jargon, JA (reprint author), NIST, Boulder, CO 80305 USA.
EM jargon@boulder.nist.gov
FU U. S. Department of Commerce
FX The authors thank Arkadiusz Lewandowski and Michael Janezic for their
helpful comments regarding the preparation of this manuscript. This work
was supported by the U. S. Department of Commerce, and is not subject to
U. S. copyright.
NR 14
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-4673-4820-1; 978-1-4673-4817-1
PY 2012
PG 5
WC Telecommunications
SC Telecommunications
GA BEJ81
UT WOS:000317004000007
ER
PT S
AU Lipsky, CA
Hastings, EM
Brown, R
Dill, RB
AF Lipsky, Christine A.
Hastings, Edward M.
Brown, Russell
Dill, Richard B.
BE McKenzie, JR
Parsons, B
Seitz, AC
Kopf, RK
Mesa, MG
Phelps, Q
TI Correcting Visual Implant Elastomer Tag Identification to Better
Evaluate Adult Atlantic Salmon Returns from Multiple Stocking Sites in
the Penobscot River, Maine, USA
SO ADVANCES IN FISH TAGGING AND MARKING TECHNOLOGY
SE American Fisheries Society Symposium
LA English
DT Proceedings Paper
CT Symposium on Advances in Fish Tagging and Marking Technology
CY FEB 24-28, 2008
CL Univ Auckland, Auckland, NEW ZEALAND
SP New Zealand Minist Fisheries, Fisheries Victoria, New S Wales DPI, Univ Tasmania & Sonar Data Ltd, Murray Darl Basin Commiss, US Geol Survey, S Australian R&D Inst, NW Marine Technol, Hallprint & ENSID Ltd, AFS Int Fisheries Sect, Natl Inst Water & Atmospher Res Ltd
HO Univ Auckland
ID RAINBOW-TROUT; VISIBILITY
AB Atlantic salmon Salmo salar smolts are stocked in the Penobscot River, Maine to supplement declining populations. Since 2000, approximately 550,000 hatchery smolts are annually released into the river, of which 32% of these (175,000) were marked with visual implant elastomer (VIE) tags indicating release time and location. Our study found that tag colors of adult returns were often misread due to confusion between green and yellow marks and between red and pink marks. Using data collected on mark readings in a controlled hatchery environment, we corrected for tag identification errors made in the field, thereby allowing adjustments to be made in the marked returns to accurately assess the number of returns from multiple stocking groups. When adult returns from multiple stocking groups were compared, significant differences were detected between stocking groups, including a threefold difference between two of the stocking groups. Hence, a simple change in smolt stocking locations and times may be of value in the recovery of the Penobscot River salmon population.
C1 [Lipsky, Christine A.] Northeast Fisheries Sci Ctr, Natl Marine Fisheries Serv, 17 Godfrey Dr,Suite 1, Orono, ME 04473 USA.
Integrated Stat, Woods Hole, MA 02543 USA.
[Brown, Russell] NE Fisheries Sci Ctr, Natl Marine Fisheries Serv, Woods Hole, MA 02543 USA.
[Dill, Richard B.] Bur SeaRun Fisheries & Habitat, Maine Dept Marine Resources, Bangor, ME 04401 USA.
RP Lipsky, CA (reprint author), Northeast Fisheries Sci Ctr, Natl Marine Fisheries Serv, 17 Godfrey Dr,Suite 1, Orono, ME 04473 USA.
EM Christine.Lipsky@noaa.gov
NR 11
TC 1
Z9 1
U1 0
U2 4
PU AMER FISHERIES SOC
PI BETHESDA
PA 5410 GROSVENOR LANE, STE 110, BETHESDA, MD 20814-2199 USA
SN 0892-2284
BN 978-1-934874-27-1
J9 AM FISH S S
JI Am. Fish. Soc. Symp.
PY 2012
VL 76
BP 63
EP +
PG 3
WC Fisheries
SC Fisheries
GA BEA92
UT WOS:000315932900006
ER
PT S
AU Achord, S
Sandford, BP
Smith, SG
Wassard, WR
Prentice, EF
AF Achord, Stephen
Sandford, Benjamin P.
Smith, Steven G.
Wassard, William R.
Prentice, Earl F.
BE McKenzie, JR
Parsons, B
Seitz, AC
Kopf, RK
Mesa, MG
Phelps, Q
TI In-Stream Monitoring of PIT-tagged Wild Spring/Summer Chinook Salmon
Juveniles in Valley Creek, Idaho
SO ADVANCES IN FISH TAGGING AND MARKING TECHNOLOGY
SE American Fisheries Society Symposium
LA English
DT Proceedings Paper
CT Symposium on Advances in Fish Tagging and Marking Technology
CY FEB 24-28, 2008
CL Univ Auckland, Auckland, NEW ZEALAND
SP New Zealand Minist Fisheries, Fisheries Victoria, New S Wales DPI, Univ Tasmania & Sonar Data Ltd, Murray Darl Basin Commiss, US Geolog Survey, S Australian R&D Inst, NW Marine Technol, Hallprint & ENSID Ltd, AFS Int Fisheries Sect, Natl Inst Water & Atmospher Res Ltd
HO Univ Auckland
ID INTEGRATED TRANSPONDER TAGS; SNAKE RIVER; COLUMBIA RIVERS; SURVIVAL;
BASIN; MORTALITY; HATCHERY; SYSTEMS; GROWTH; MODEL
AB Recent advances in passive integrated transponder (PIT) tag technology have allowed the development of in-stream fish-monitoring systems. We installed two such systems in Valley Creek near its confluence with the Salmon River in summer 2002. In the summers of 2003-2005 we collected and PIT tagged wild spring/summer Chinook salmon parr Oncorhynchus tshawytscha in natal rearing areas upstream from the monitors. Although subsequent detection numbers between fall 2003 and spring 2006 were low and variable, they were sufficient to determine timing and estimate survival. We defined migrational groups by period of detection: late summer and fall (August-October), winter (November-February), and the following spring (March-June). Combining 3 years of data, the mean proportions of fish detected during these three respective detection periods were 60.6, 27.7, and 11.7%. Mean probability estimates of survival from Valley Creek to Lower Granite or Little Goose Dams were 9.2, 23.4, and 40.8% for the respective late summer and fall, winter, and spring periods. Estimated overall mean probabilities of survival were 46.6% from tagging as parr to movement into the mouth of Valley Creek and 17.3% from Valley Creek to Lower Granite Dam. The overall mean parr-to-smolt survival estimate from tagging to arrival at Lower Granite Dam was 9.0%. The unexpectedly high proportion of fish migrating in winter has important implications for fish monitoring studies that use rotary screw or scoop traps: these traps are generally inoperable during winter near most natal rearing areas and thus may result in biased estimates of fish population status and migration timing. Advancements in technologies and methodologies to instream PIT-tag monitoring systems will improve data quality to assist recovery planning for threatened and endangered fish species.
C1 [Achord, Stephen; Sandford, Benjamin P.; Smith, Steven G.; Wassard, William R.; Prentice, Earl F.] NOAA, NW Fisheries Sci Ctr, Natl Marine Fisheries Serv, Natori, Miyagi 98112, Japan.
RP Achord, S (reprint author), NOAA, NW Fisheries Sci Ctr, Natl Marine Fisheries Serv, 2725 Montlake Blvd E, Natori, Miyagi 98112, Japan.
EM steve.achord@noaa.gov
NR 34
TC 3
Z9 3
U1 2
U2 11
PU AMER FISHERIES SOC
PI BETHESDA
PA 5410 GROSVENOR LANE, STE 110, BETHESDA, MD 20814-2199 USA
SN 0892-2284
BN 978-1-934874-27-1
J9 AM FISH S S
JI Am. Fish. Soc. Symp.
PY 2012
VL 76
BP 163
EP 176
PG 14
WC Fisheries
SC Fisheries
GA BEA92
UT WOS:000315932900011
ER
PT S
AU Weitkamp, L
AF Weitkamp, Laurie
BE McKenzie, JR
Parsons, B
Seitz, AC
Kopf, RK
Mesa, MG
Phelps, Q
TI Marine Distributions of Coho and Chinook Salmon Inferred from Coded Wire
Tag Recoveries
SO ADVANCES IN FISH TAGGING AND MARKING TECHNOLOGY
SE American Fisheries Society Symposium
LA English
DT Proceedings Paper
CT Symposium on Advances in Fish Tagging and Marking Technology
CY FEB 24-28, 2008
CL Univ Auckland, Auckland, NEW ZEALAND
SP New Zealand Minist Fisheries, Fisheries Victoria, New S Wales DPI, Univ Tasmania & Sonar Data Ltd, Murray Darl Basin Commiss, US Geol Survey, S Australian R&D Inst, NW Marine Technol, Hallprint & ENSID Ltd, AFS Int Fisheries Sect, Natl Inst Water & Atmospher Res Ltd
HO Univ Auckland
ID ONCORHYNCHUS-TSHAWYTSCHA; GENETIC-VARIATION; ATLANTIC SALMON;
NORTH-AMERICA; BALTIC SEA; SURVIVAL; KISUTCH; JUVENILE; MIGRATION;
PATTERNS
AB The coded wire tag (CWT) database contains detailed information on millions of Pacific salmon Oncorhynchus spp. released from hatcheries or smolt traps and recovered in the Pacific Ocean and its tributaries. I used this information to compare marine distribution patterns of hatchery coho O. kisutch and Chinook O. tshawytscha salmon, based on recoveries of an estimated 1.99 million tagged salmon in coastal areas from southern California to the Bering Sea. Both species show distinct region-specific distribution patterns. Within these release regions, coho and Chinook salmon marine distributions were often similar, with fish distributed largely in local waters. In other regions, Chinook salmon were distributed father north than coho salmon originating from the same region. Only in two regions did the two species have fundamentally different marine distributions, with coho south of, and Chinook salmon north of, the natal stream. The analysis also revealed several "hot spots" of salmon diversity, identified by numerically few recoveries that represented many of the hatcheries used in the analysis. These hotspots may serve as important reservoirs for the continued existence of populations that are particularly vulnerable to climate change due to their restricted marine distributions. Although CWT technology is primitive by modern standards, the enormous amount of data collected in a consistent fashion over decades and contained in an online database provides a unique and underutilized opportunity to address many elusive questions about Pacific salmon.
C1 US Natl Marine Fisheries Serv, NW Fisheries Sci Ctr, Newport, OR 97365 USA.
RP Weitkamp, L (reprint author), US Natl Marine Fisheries Serv, NW Fisheries Sci Ctr, 2032 SE OSU Dr, Newport, OR 97365 USA.
EM laurie.weitkamp@noaa.gov
NR 45
TC 3
Z9 3
U1 0
U2 4
PU AMER FISHERIES SOC
PI BETHESDA
PA 5410 GROSVENOR LANE, STE 110, BETHESDA, MD 20814-2199 USA
SN 0892-2284
BN 978-1-934874-27-1
J9 AM FISH S S
JI Am. Fish. Soc. Symp.
PY 2012
VL 76
BP 191
EP 214
PG 24
WC Fisheries
SC Fisheries
GA BEA92
UT WOS:000315932900013
ER
PT S
AU Koehn, JD
Eiler, JH
McKenzie, JA
O'Connor, WG
AF Koehn, John D.
Eiler, John H.
McKenzie, John A.
O'Connor, William G.
BE McKenzie, JR
Parsons, B
Seitz, AC
Kopf, RK
Mesa, MG
Phelps, Q
TI An Improved Method for Obtaining Fine-Scale Location of Radio Tags when
Tracking by Boat
SO ADVANCES IN FISH TAGGING AND MARKING TECHNOLOGY
SE American Fisheries Society Symposium
LA English
DT Proceedings Paper
CT Symposium on Advances in Fish Tagging and Marking Technology
CY FEB 24-28, 2008
CL Univ Auckland, Auckland, NEW ZEALAND
SP New Zealand Minist Fisheries, Fisheries Victoria, New S Wales DPI, Univ Tasmania & Sonar Data Ltd, Murray Darl Basin Commiss, US Geol Survey, S Australian R&D Inst, NW Marine Technol, Hallprint & ENSID Ltd, AFS Int Fisheries Sect, Natl Inst Water & Atmospher Res Ltd
HO Univ Auckland
ID MACCULLOCHELLA-PEELII-PEELII; HABITAT SELECTION; RADIOTELEMETRY; COD;
FISHES; ERROR
AB This study describes an improved method that decreases tracking time but increases accuracy and precision for the fine-scale location of radio tags by reducing the receiving antenna efficiency. Test tags (48-49 MHz) were hidden in a lowland river and independently located by boat tracking using both the antenna reduction method and standard triangulation techniques. The antenna reduction method was found to be faster and more accurate, locating transmitters to within 0.19 +/- 0.13 m (mean +/- SE) of their actual location (error range 0-1.50 m) compared to 19.53 +/- 4.81 m (error range 0-70.00 m) using triangulation. This simple approach can be applied to a wide range of radio telemetry studies and avoids many of the major sources of location error associated with triangulation including minimising the distance between the transmitter and receiver and avoiding the potential need for mapping.
C1 [Koehn, John D.; McKenzie, John A.] Arthur Rylah Inst Environm Res, Dept Sustainabil & Environm, 123 Brown St, Heidelberg, Vic 3084, Australia.
[Eiler, John H.] Auke Bay Labs Alaska Fisheries Sci Ctr, Natl Marine Fisheries Serv, Juneau, AK 99801 USA.
[McKenzie, John A.] Arthur Rylah Inst Environm Res, Dept Sustainabil & Environm, Heidelberg 3084, Australia.
[O'Connor, William G.] Biodivers & Ecosystem Serv, Dept Sustainabil & Environm, Melbourne, Vic 3000, Australia.
RP Koehn, JD (reprint author), Arthur Rylah Inst Environm Res, Dept Sustainabil & Environm, 123 Brown St, Heidelberg, Vic 3084, Australia.
EM John.Koehn@dse.vic.gov.au
FU Murray-Darling Basin Commission; Depai tment of Sustainability and
Environment; Victoria
FX The authors- thank Damien O'Mahony, Justin O'Connor and Pat O'Leary who
assisted with the trials and others who assisted the Murray cod radio
tracking project. This work was funded by the Murray-Darling Basin
Commission and Depai tment of Sustainability and Environment, Victoria.
Advice on statistics was provided by Dave Ramsey and valuable comments
on manuscript drafts were kindly provided by Matt Jones, Jed MacDonald
and the two anonymous reviewers.
NR 17
TC 4
Z9 4
U1 0
U2 7
PU AMER FISHERIES SOC
PI BETHESDA
PA 5410 GROSVENOR LANE, STE 110, BETHESDA, MD 20814-2199 USA
SN 0892-2284
BN 978-1-934874-27-1
J9 AM FISH S S
JI Am. Fish. Soc. Symp.
PY 2012
VL 76
BP 379
EP +
PG 3
WC Fisheries
SC Fisheries
GA BEA92
UT WOS:000315932900024
ER
PT S
AU Hayes, SA
Bond, MH
Wells, BK
Hanson, CV
Jones, AW
MacFarlane, RB
AF Hayes, Sean A.
Bond, Morgan H.
Wells, Brian K.
Hanson, Chad V.
Jones, Andrew W.
MacFarlane, R. Bruce
BE McKenzie, JR
Parsons, B
Seitz, AC
Kopf, RK
Mesa, MG
Phelps, Q
TI Using Archival Tags to Infer Habitat Use of Central California Steelhead
and Coho Salmon
SO ADVANCES IN FISH TAGGING AND MARKING TECHNOLOGY
SE American Fisheries Society Symposium
LA English
DT Proceedings Paper
CT Symposium on Advances in Fish Tagging and Marking Technology
CY FEB 24-28, 2008
CL Univ Auckland, Auckland, NEW ZEALAND
SP New Zealand Minist Fisheries, Fisheries Victoria, New S Wales DPI, Univ Tasmania & Sonar Data Ltd, Murray Darl Basin Commiss, US Geolog Survey, S Australian R&D Inst, NW Marine Technol, Hallprint & ENSID Ltd, AFS Int Fisheries Sect, Natl Inst Water & Atmospher Res Ltd
HO Univ Auckland
ID DATA-STORAGE TAGS; CHINOOK SALMON; ONCORHYNCHUS-TSHAWYTSCHA; NORTH
PACIFIC; OCEAN; PATTERNS; GROWTH; TEMPERATURE; RECOVERIES; STREAMS
AB We deployed archival temperature loggers on juvenile and adult coho salmon Oncorhynchus kisutch and steelhead (anadromous rainbow trout) O. mykiss over both the freshwater and marine portions of their lifecycle in order to study their movements and thermal preferences. Beginning in 2003, loggers were deployed on juvenile coho salmon and juvenile and adult steelhead in a small central California coastal stream. A tag recovery from a coho salmon indicates the fish experienced variable temperatures on a daily to weekly basis in the marine environment (mean 13.3 degrees C, range 10-18 degrees C). Tags recovered from steelhead indicate use of a cooler, more stable, thermal habitat window in the marine environment (mean 11.0 degrees C, range 8-14 degrees C), often with little fluctuation over a period of weeks to months, and most thermal changes occurring at the seasonal time scale. Comparisons of steelhead data with sea surface temperature data suggest a northern migration out of the California Current to a narrow band of habitat that fluctuates between the southern boundary of the Bering Sea and north of the 40th parallel. In the shallow freshwater environment, steelhead appeared to be at the mercy of stream temperatures. However, in the estuary, where thermally variable habitats were available, steelhead used a surprisingly broad temperature range, including entering water thought to challenge their thermal tolerances (>20 degrees C) even when cooler waters were available. Temperature loggers recovered on a local beach and island indicate tagged fish were consumed in the estuary by warm-blooded predators. All of these data coupled with a larger number of passive integrated transponder (PIT) tags, are helping to identify discrete habitats fish are using, exact dates of ocean entry and return, and enhance our understanding of marine survival and predation. Finally, archival tags may be useful in understanding habitat use of pelagic long-migrating species like steelhead, by tracking individuals in areas where other tagging technologies are poorly suited.
C1 [Hayes, Sean A.; Bond, Morgan H.; Wells, Brian K.; Hanson, Chad V.; Jones, Andrew W.; MacFarlane, R. Bruce] NOAA, SW Fisheries Sci Ctr, Santa Cruz, CA 95060 USA.
RP Hayes, SA (reprint author), NOAA, SW Fisheries Sci Ctr, 110 Shaffer Rd, Santa Cruz, CA 95060 USA.
EM sean.hayes@noaa.gov
NR 46
TC 4
Z9 4
U1 0
U2 11
PU AMER FISHERIES SOC
PI BETHESDA
PA 5410 GROSVENOR LANE, STE 110, BETHESDA, MD 20814-2199 USA
SN 0892-2284
BN 978-1-934874-27-1
J9 AM FISH S S
JI Am. Fish. Soc. Symp.
PY 2012
VL 76
BP 471
EP 492
PG 22
WC Fisheries
SC Fisheries
GA BEA92
UT WOS:000315932900032
ER
PT B
AU Colt, J
AF Colt, John
BA Colt, J
BF Colt, J
TI Solubility of Atmospheric Gases in Freshwater
SO DISSOLVED GAS CONCENTRATION IN WATER: COMPUTATION AS FUNCTIONS OF
TEMPERATURE, SALINITY AND PRESSURE, 2ND EDITION
SE Elsevier Insights
LA English
DT Article; Book Chapter
C1 NOAA, Natl Marine Fisheries Serv, NW Fisheries Sci Ctr, Seattle, WA 98112 USA.
RP Colt, J (reprint author), NOAA, Natl Marine Fisheries Serv, NW Fisheries Sci Ctr, Seattle, WA 98112 USA.
EM john.colt@noaa.gov
NR 0
TC 0
Z9 0
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
BN 978-0-12-415967-9
J9 ELSEV INSIGHT
PY 2012
BP 1
EP 71
DI 10.1016/B978-0-12-415916-7.00001-2
PG 71
WC Fisheries; Oceanography
SC Fisheries; Oceanography
GA BEH37
UT WOS:000316601100002
ER
PT J
AU Colt, J
AF Colt, John
BA Colt, J
BF Colt, J
TI Dissolved Gas Concentration in Water Computation as Functions of
Temperature, Salinity and Pressure Second Edition Introduction
SO DISSOLVED GAS CONCENTRATION IN WATER: COMPUTATION AS FUNCTIONS OF
TEMPERATURE, SALINITY AND PRESSURE, 2ND EDITION
SE Elsevier Insights
LA English
DT Editorial Material; Book Chapter
C1 NOAA, Natl Marine Fisheries Serv, NW Fisheries Sci Ctr, Seattle, WA 98112 USA.
RP Colt, J (reprint author), NOAA, Natl Marine Fisheries Serv, NW Fisheries Sci Ctr, Seattle, WA 98112 USA.
EM john.colt@noaa.gov
NR 0
TC 0
Z9 0
U1 2
U2 2
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
BN 978-0-12-415967-9
J9 ELSEV INSIGHT
PY 2012
BP XV
EP +
PG 5
WC Fisheries; Oceanography
SC Fisheries; Oceanography
GA BEH37
UT WOS:000316601100001
ER
PT B
AU Colt, J
AF Colt, John
BA Colt, J
BF Colt, J
TI Solubility of Atmospheric Gases in Brackish and Marine Waters
SO DISSOLVED GAS CONCENTRATION IN WATER: COMPUTATION AS FUNCTIONS OF
TEMPERATURE, SALINITY AND PRESSURE, 2ND EDITION
SE Elsevier Insights
LA English
DT Article; Book Chapter
C1 NOAA, Natl Marine Fisheries Serv, NW Fisheries Sci Ctr, Seattle, WA 98112 USA.
RP Colt, J (reprint author), NOAA, Natl Marine Fisheries Serv, NW Fisheries Sci Ctr, Seattle, WA 98112 USA.
EM john.colt@noaa.gov
NR 0
TC 0
Z9 0
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
BN 978-0-12-415967-9
J9 ELSEV INSIGHT
PY 2012
BP 73
EP 131
DI 10.1016/B978-0-12-415916-7.00002-4
PG 59
WC Fisheries; Oceanography
SC Fisheries; Oceanography
GA BEH37
UT WOS:000316601100003
ER
PT B
AU Colt, J
AF Colt, John
BA Colt, J
BF Colt, J
TI Supersaturation of Gases
SO DISSOLVED GAS CONCENTRATION IN WATER: COMPUTATION AS FUNCTIONS OF
TEMPERATURE, SALINITY AND PRESSURE, 2ND EDITION
SE Elsevier Insights
LA English
DT Article; Book Chapter
C1 NOAA, Natl Marine Fisheries Serv, NW Fisheries Sci Ctr, Seattle, WA 98112 USA.
RP Colt, J (reprint author), NOAA, Natl Marine Fisheries Serv, NW Fisheries Sci Ctr, Seattle, WA 98112 USA.
EM john.colt@noaa.gov
NR 0
TC 0
Z9 0
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
BN 978-0-12-415967-9
J9 ELSEV INSIGHT
PY 2012
BP 133
EP 178
DI 10.1016/B978-0-12-415916-7.00003-6
PG 46
WC Fisheries; Oceanography
SC Fisheries; Oceanography
GA BEH37
UT WOS:000316601100004
ER
PT B
AU Colt, J
AF Colt, John
BA Colt, J
BF Colt, J
TI Solubility of Noble Gases in the Atmosphere
SO DISSOLVED GAS CONCENTRATION IN WATER: COMPUTATION AS FUNCTIONS OF
TEMPERATURE, SALINITY AND PRESSURE, 2ND EDITION
SE Elsevier Insights
LA English
DT Article; Book Chapter
C1 NOAA, Natl Marine Fisheries Serv, NW Fisheries Sci Ctr, Seattle, WA 98112 USA.
RP Colt, J (reprint author), NOAA, Natl Marine Fisheries Serv, NW Fisheries Sci Ctr, Seattle, WA 98112 USA.
EM john.colt@noaa.gov
NR 0
TC 0
Z9 0
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
BN 978-0-12-415967-9
J9 ELSEV INSIGHT
PY 2012
BP 179
EP 197
DI 10.1016/B978-0-12-415916-7.00004-8
PG 19
WC Fisheries; Oceanography
SC Fisheries; Oceanography
GA BEH37
UT WOS:000316601100005
ER
PT B
AU Colt, J
AF Colt, John
BA Colt, J
BF Colt, J
TI Solubility of Trace Gases in the Atmosphere
SO DISSOLVED GAS CONCENTRATION IN WATER: COMPUTATION AS FUNCTIONS OF
TEMPERATURE, SALINITY AND PRESSURE, 2ND EDITION
SE Elsevier Insights
LA English
DT Article; Book Chapter
C1 NOAA, Natl Marine Fisheries Serv, NW Fisheries Sci Ctr, Seattle, WA 98112 USA.
RP Colt, J (reprint author), NOAA, Natl Marine Fisheries Serv, NW Fisheries Sci Ctr, Seattle, WA 98112 USA.
EM john.colt@noaa.gov
NR 0
TC 0
Z9 0
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
BN 978-0-12-415967-9
J9 ELSEV INSIGHT
PY 2012
BP 199
EP 212
DI 10.1016/B978-0-12-415916-7.00005-X
PG 14
WC Fisheries; Oceanography
SC Fisheries; Oceanography
GA BEH37
UT WOS:000316601100006
ER
PT B
AU Colt, J
AF Colt, John
BA Colt, J
BF Colt, J
TI Solubility of Gases in Brines
SO DISSOLVED GAS CONCENTRATION IN WATER: COMPUTATION AS FUNCTIONS OF
TEMPERATURE, SALINITY AND PRESSURE, 2ND EDITION
SE Elsevier Insights
LA English
DT Article; Book Chapter
C1 NOAA, Natl Marine Fisheries Serv, NW Fisheries Sci Ctr, Seattle, WA 98112 USA.
RP Colt, J (reprint author), NOAA, Natl Marine Fisheries Serv, NW Fisheries Sci Ctr, Seattle, WA 98112 USA.
EM john.colt@noaa.gov
NR 0
TC 0
Z9 0
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
BN 978-0-12-415967-9
J9 ELSEV INSIGHT
PY 2012
BP 213
EP 235
DI 10.1016/B978-0-12-415916-7.00006-1
PG 23
WC Fisheries; Oceanography
SC Fisheries; Oceanography
GA BEH37
UT WOS:000316601100007
ER
PT B
AU Colt, J
AF Colt, John
BA Colt, J
BF Colt, J
TI Physical Properties of Water
SO DISSOLVED GAS CONCENTRATION IN WATER: COMPUTATION AS FUNCTIONS OF
TEMPERATURE, SALINITY AND PRESSURE, 2ND EDITION
SE Elsevier Insights
LA English
DT Article; Book Chapter
C1 NOAA, Natl Marine Fisheries Serv, NW Fisheries Sci Ctr, Seattle, WA 98112 USA.
RP Colt, J (reprint author), NOAA, Natl Marine Fisheries Serv, NW Fisheries Sci Ctr, Seattle, WA 98112 USA.
EM john.colt@noaa.gov
NR 0
TC 0
Z9 0
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
BN 978-0-12-415967-9
J9 ELSEV INSIGHT
PY 2012
BP 237
EP 247
DI 10.1016/B978-0-12-415916-7.00007-3
PG 11
WC Fisheries; Oceanography
SC Fisheries; Oceanography
GA BEH37
UT WOS:000316601100008
ER
PT B
AU Colt, J
AF Colt, John
BA Colt, J
BF Colt, J
TI Computation of Gas Solubility
SO DISSOLVED GAS CONCENTRATION IN WATER: COMPUTATION AS FUNCTIONS OF
TEMPERATURE, SALINITY AND PRESSURE, 2ND EDITION
SE Elsevier Insights
LA English
DT Article; Book Chapter
C1 NOAA, Natl Marine Fisheries Serv, NW Fisheries Sci Ctr, Seattle, WA 98112 USA.
RP Colt, J (reprint author), NOAA, Natl Marine Fisheries Serv, NW Fisheries Sci Ctr, Seattle, WA 98112 USA.
EM john.colt@noaa.gov
NR 0
TC 0
Z9 0
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
BN 978-0-12-415967-9
J9 ELSEV INSIGHT
PY 2012
BP 253
EP 267
PG 15
WC Fisheries; Oceanography
SC Fisheries; Oceanography
GA BEH37
UT WOS:000316601100009
ER
PT B
AU Colt, J
AF Colt, John
BA Colt, J
BF Colt, J
TI Computation of Physical Properties of Water
SO DISSOLVED GAS CONCENTRATION IN WATER: COMPUTATION AS FUNCTIONS OF
TEMPERATURE, SALINITY AND PRESSURE, 2ND EDITION
SE Elsevier Insights
LA English
DT Article; Book Chapter
C1 NOAA, Natl Marine Fisheries Serv, NW Fisheries Sci Ctr, Seattle, WA 98112 USA.
RP Colt, J (reprint author), NOAA, Natl Marine Fisheries Serv, NW Fisheries Sci Ctr, Seattle, WA 98112 USA.
EM john.colt@noaa.gov
NR 0
TC 0
Z9 0
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
BN 978-0-12-415967-9
J9 ELSEV INSIGHT
PY 2012
BP 269
EP 275
PG 7
WC Fisheries; Oceanography
SC Fisheries; Oceanography
GA BEH37
UT WOS:000316601100010
ER
PT B
AU Colt, J
AF Colt, John
BA Colt, J
BF Colt, J
TI Computer Programs
SO DISSOLVED GAS CONCENTRATION IN WATER: COMPUTATION AS FUNCTIONS OF
TEMPERATURE, SALINITY AND PRESSURE, 2ND EDITION
SE Elsevier Insights
LA English
DT Article; Book Chapter
C1 NOAA, Natl Marine Fisheries Serv, NW Fisheries Sci Ctr, Seattle, WA 98112 USA.
RP Colt, J (reprint author), NOAA, Natl Marine Fisheries Serv, NW Fisheries Sci Ctr, Seattle, WA 98112 USA.
EM john.colt@noaa.gov
NR 0
TC 0
Z9 0
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
BN 978-0-12-415967-9
J9 ELSEV INSIGHT
PY 2012
BP 277
EP 285
PG 9
WC Fisheries; Oceanography
SC Fisheries; Oceanography
GA BEH37
UT WOS:000316601100011
ER
PT B
AU Pine, WE
Hightower, JE
Coggins, LG
Lauretta, MV
Pollock, KH
AF Pine, William E.
Hightower, Joseph E.
Coggins, Lewis G.
Lauretta, Matthew V.
Pollock, Kenneth H.
BE Zale, AV
Parrish, DL
Sutton, TM
TI Design and Analysis of Tagging Studies
SO FISHERIES TECHNIQUES, THIRD EDITION
LA English
DT Article; Book Chapter
ID VISIBLE IMPLANT ELASTOMER; CAPTURE-RECAPTURE DATA; TAG REPORTING RATE;
ESTIMATING MIGRATION RATES; GROWTH CURVE PARAMETERS; TUNA
THUNNUS-THYNNUS; MARK-RECAPTURE; STRIPED BASS; COLORADO RIVER; BLUEFIN
TUNA
C1 [Pine, William E.] Univ Florida, Fisheries & Aquat Sci Program, Gainesville, FL 32611 USA.
[Pine, William E.] Univ Florida, Dept Wildlife Ecol & Conservat, Gainesville, FL 32611 USA.
[Hightower, Joseph E.] N Carolina State Univ, US Geol Survey, North Carolina Cooperat Fish & Wildlife Res Unit, Raleigh, NC 27695 USA.
[Coggins, Lewis G.] NOAA, Natl Marine Fisheries Serv, SE Fisheries Ctr, Beaufort Lab, Beaufort, NC 28516 USA.
[Lauretta, Matthew V.] Univ Florida, Fisheries & Aquat Sci Program, Sch Forest Resources & Conservat, Gainesville, FL 32653 USA.
[Pollock, Kenneth H.] N Carolina State Univ, Dept Biol, Raleigh, NC 27695 USA.
RP Pine, WE (reprint author), Univ Florida, Fisheries & Aquat Sci Program, 110 Newins Ziegler Hall, Gainesville, FL 32611 USA.
NR 170
TC 8
Z9 8
U1 0
U2 3
PU AMER FISHERIES SOC
PI BETHESDA
PA 5410 GROSVENOR LANE, STE 110, BETHESDA, MD 20814-2199 USA
BN 978-1-934874-29-5
PY 2012
BP 521
EP 572
PG 52
WC Fisheries; Marine & Freshwater Biology
SC Fisheries; Marine & Freshwater Biology
GA BDW94
UT WOS:000315471600011
ER
PT B
AU Rudstam, LG
Jech, JM
Parker-Stetter, SL
Horne, JK
Sullivan, PJ
Mason, DM
AF Rudstam, Lars G.
Jech, J. Michael
Parker-Stetter, Sandra L.
Horne, John K.
Sullivan, Patrick J.
Mason, Doran M.
BE Zale, AV
Parrish, DL
Sutton, TM
TI Fisheries Acoustics
SO FISHERIES TECHNIQUES, THIRD EDITION
LA English
DT Article; Book Chapter
ID SITU TARGET-STRENGTH; POLLOCK THERAGRA-CHALCOGRAMMA; SPLIT-BEAM
HYDROACOUSTICS; JUVENILE SOCKEYE-SALMON; FISH STOCK ASSESSMENT; IN-SITU;
RAINBOW-SMELT; SPECIES IDENTIFICATION; VOLUME BACKSCATTERING; ECOSYSTEM
APPROACH
C1 [Rudstam, Lars G.] Cornell Univ, Biol Field Stn, Dept Nat Resources, Bridgeport, NY 13030 USA.
[Jech, J. Michael] Natl Ocean & Atmospher Adm, Northeast Fisheries Sci Ctr, Woods Hole, MA 02543 USA.
[Parker-Stetter, Sandra L.; Horne, John K.] Univ Washington, Sch Aquat & Fishery Sci, Seattle, WA 98195 USA.
[Sullivan, Patrick J.] Cornell Univ, Dept Nat Resources, Ithaca, NY 14850 USA.
[Mason, Doran M.] Natl Ocean & Atmospher Adm, Great Lakes Environm Res Lab, Ann Arbor, MI 48108 USA.
RP Rudstam, LG (reprint author), Cornell Univ, Biol Field Stn, Dept Nat Resources, 900 Shackelton Point Rd, Bridgeport, NY 13030 USA.
NR 128
TC 7
Z9 8
U1 4
U2 7
PU AMER FISHERIES SOC
PI BETHESDA
PA 5410 GROSVENOR LANE, STE 110, BETHESDA, MD 20814-2199 USA
BN 978-1-934874-29-5
PY 2012
BP 597
EP 636
PG 40
WC Fisheries; Marine & Freshwater Biology
SC Fisheries; Marine & Freshwater Biology
GA BDW94
UT WOS:000315471600013
ER
PT B
AU Birkemeier, WA
Jensen, RE
Bernard, LJ
Bouchard, R
AF Birkemeier, William A.
Jensen, Robert E.
Bernard, Landry J.
Bouchard, Richard
GP IEEE
TI IOOS Wave Observations, a National Perspective
SO 2012 OCEANS
LA English
DT Proceedings Paper
CT MTS/IEEE Oceans Conference
CY OCT 14-19, 2012
CL Virginia Beach, VA
SP IEEE, Marine Technol Soc, IEEE Ocean Engn Soc
DE waves; observations; models; climate; IOOS
AB The 2009 National Operational Wave Observation Plan is being updated in 2012 to reflect the present state of the wave observation network and revised to better define priority placements and upgrades, and to identify the stations with the longest data records. The revised plan, which is based on the existing 200 locations, defines a perimeter Backbone network of observing sites and proposes adding 47 new locations and upgrading the directional wave measurement of 87 stations. 10 Rover Buoys are recommended to be used with one year deployments to evaluate regional wave models so that they can be used as virtual wave gauges. The plan also identifies 60 of the existing US backbone locations with record lengths of 20 years or longer (the longest record is 38 years). These Sentinel Stations are critical to understanding climatic changes to the Nation's wave conditions. In this paper, we review the status of the nation's wave observation network, present a number of proposed changes and describe a process using wave models and short-term wave sensor deployments to optimize the wave observations in a particular region.
C1 [Birkemeier, William A.; Jensen, Robert E.] ERDC CHL, Vicksburg, MS 39180 USA.
[Bernard, Landry J.; Bouchard, Richard] NOAA, Natl Data Buoy Ctr, Stennis Space Ctr, MS USA.
RP Birkemeier, WA (reprint author), ERDC CHL, Vicksburg, MS 39180 USA.
NR 7
TC 0
Z9 0
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-4673-0829-8; 978-1-4673-0830-4
PY 2012
PG 8
WC Engineering, Multidisciplinary; Telecommunications
SC Engineering; Telecommunications
GA BDW56
UT WOS:000315350300269
ER
PT B
AU Boicourt, WC
Li, M
Nidzieko, N
Kelly, EJ
Blumberg, AF
Georgas, N
Updyke, TG
Wilson, WD
AF Boicourt, W. C.
Li, M.
Nidzieko, N.
Kelly, E. J.
Blumberg, A. F.
Georgas, N.
Updyke, T. G.
Wilson, W. D.
GP IEEE
TI Observing the Urban Estuary: Review and Prospect
SO 2012 OCEANS
LA English
DT Proceedings Paper
CT MTS/IEEE Oceans Conference
CY OCT 14-19, 2012
CL Virginia Beach, VA
SP IEEE, Marine Technol Soc, IEEE Ocean Engn Soc
DE Urban estuary; observing systems; circulation
ID CHESAPEAKE BAY; OCEAN; CURRENTS; MODEL
AB Establishing an effective observing system for the urban estuary presents oceanographic and operational challenges beyond those common to the continental shelf and open ocean. Examples are used from the Middle Atlantic Bight estuaries to illustrate that, while emerging technologies are facilitating efforts to establish these systems on a sustainable basis, cooperative efficiencies are likely to be necessary for long-term viability. Models of such cooperation are emerging from IOOS and MARACOOS, helping to encourage a vision of success amidst uncertain forecasts of financial support for the enterprise from traditional sources.
C1 [Boicourt, W. C.; Li, M.; Nidzieko, N.] Univ Maryland, Ctr Environm Sci, Horn Point Lab, Box 775, Cambridge, MD 21613 USA.
[Kelly, E. J.] Maritime Assoc Port NY NJ, New York, NY 10004 USA.
[Blumberg, A. F.; Georgas, N.] Ctr Maritime Syst, Stevens Inst Technol, Civil Environm & Ocean Engn Dept, Hoboken, NJ 07030 USA.
[Updyke, T. G.] Old Dominion Univ, Ctr Coastal Phys Oceanog, Norfolk, VA 23529 USA.
[Wilson, W. D.] NOAA Chesapeake Bay Off, Annapolis, MD USA.
RP Boicourt, WC (reprint author), Univ Maryland, Ctr Environm Sci, Horn Point Lab, Box 775, Cambridge, MD 21613 USA.
EM boicourt@umces.edu; mingli@umces.edu; nidzieko@umces.edu;
themaritimeassoc@erols.com; Alan.Blumberg@stevens.edu;
ngeorgas@stevens.edu; garner@ccpo.odu.edu; Doug.Wilson@noaa.gov
RI Li, Ming/B-3485-2015
OI Li, Ming/0000-0003-1492-4127
NR 23
TC 0
Z9 0
U1 0
U2 5
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-4673-0829-8; 978-1-4673-0830-4
PY 2012
PG 9
WC Engineering, Multidisciplinary; Telecommunications
SC Engineering; Telecommunications
GA BDW56
UT WOS:000315350300332
ER
PT B
AU Chaouchi, M
Snowden, D
de La Beaujardiere, J
Crout, R
Bassett, R
AF Chaouchi, M.
Snowden, D.
de La Beaujardiere, J.
Crout, R.
Bassett, R.
GP IEEE
TI Ocean Data Integration: Successes and Lessons Learned from the Bleeding
Edge
SO 2012 OCEANS
LA English
DT Proceedings Paper
CT MTS/IEEE Oceans Conference
CY OCT 14-19, 2012
CL Virginia Beach, VA
SP IEEE, Marine Technol Soc, IEEE Ocean Engn Soc
DE data; integration; interoperability; web services
AB NOAA's Center for Operational Oceanographic Products and Services (CO-OPS), National Data Buoy Center (NDBC) and the U. S. Integrated Ocean Observing System (IOOS(R)) Program Office have collaborated for several years on a major data integration project to increase interoperability between data providers and the user community. The ultimate goal of the collaboration was to better serve the information needs of researchers, scientists, operational managers, and the public. In this CWP, we provide some background on the motivation and justification for why CO-OPS and NDBC participated in this effort and elaborate on some of the experiences of these two Federal partners during that project. We enumerate a series of general outcomes of the project and identify lessons learned by CO-OPS, NDBC, and the larger IOOS data management community. Finally, we provide suggestions for community wide expansion of select data integration technologies, where they fit in a larger Data Management and Communications (DMAC) architecture and comments on the unique roles of CO-OPS and NDBC as essential elements of the observational and data management infrastructure of the Integrated Ocean Observing System.
C1 [Chaouchi, M.; Snowden, D.; Bassett, R.] NOAA Natl Ocean Serv, Silver Spring, MD USA.
[de La Beaujardiere, J.] NOAA Natl Environm Satellite Data & Informat Ser, Silver Spring, MD USA.
[Crout, R.] Natl Weather Serv, Stennis Space Ctr, MS USA.
[Bassett, R.] Natl Ocean Serv, Silver Spring, MD USA.
RP Chaouchi, M (reprint author), NOAA Natl Ocean Serv, Silver Spring, MD USA.
EM mohamed.chaouchi@noaa.gov; derrick.snowden@noaa.gov;
jeff.delabeaujardiere@noaa.gov; richard.crout@noaa.gov;
robert.bassett@noaa.gov
NR 3
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-4673-0829-8; 978-1-4673-0830-4
PY 2012
PG 3
WC Engineering, Multidisciplinary; Telecommunications
SC Engineering; Telecommunications
GA BDW56
UT WOS:000315350300305
ER
PT B
AU Crout, RL
Brown, A
Krumm, J
Leung, P
Li, CY
AF Crout, Richard L.
Brown, Andy
Krumm, Jordan
Leung, Pak
Li, Chunyan
GP IEEE
TI Complexity of Near-Bottom Ocean Currents in the Northern Gulf of Mexico
from a Sea-Bed ADCP
SO 2012 OCEANS
LA English
DT Proceedings Paper
CT MTS/IEEE Oceans Conference
CY OCT 14-19, 2012
CL Virginia Beach, VA
SP IEEE, Marine Technol Soc, IEEE Ocean Engn Soc
DE Deep Gulf of Mexico; near-bottom currents; NTL; ADCP; Oil platforms;
Topographic Rossby Waves; inertial currents
AB The oceanography of the northern Gulf of Mexico is complex. The Loop Current dominates the eastern half of the Gulf and a-periodically shed anti-cyclonic Loop Eddies that move into the western Gulf of Mexico. Wind-generated inertial waves move throughout the water column, carrying surface energy to depth. Stronger inertial currents associated with storm events, including cold front passages. Energy from tropical cyclone winds has been shown to impact near-bottom currents in water nearly two kilometers deep. Topographic Rossby Waves (TRWs), apparently generated by interactions associated with Loop Current and Loop Eddy processes, travel through the northern Gulf of Mexico and accelerate near-bottom currents. Current profile data from a bottom-mounted acoustic Doppler current profiler (ADCP) at 1300 meters depth in Green Canyon Block 645, south of the Atchafalaya Bay in Louisiana, are analyzed to investigate these phenomena.
The seabed mounted 75 kHz ADCP was installed in June 2005 in response to a Notice to Lessees by the Bureau of Ocean Energy Management to collect data to insure the safety of drilling and production platforms. The innovative design, supplying power and recovering data from the ADCP via a tether, allows almost continuous receipt of data. The 75 kHz ADCP collects data in 20 meter bins to 500 meters above the ocean bottom at 20 minute intervals. As with all current profile data required by the NTL, the data are transmitted to the National Data Buoy Center (NDBC) where they are quality controlled and transmitted to the world's numerical prediction centers. Copies of the raw binary data and the quality controlled data are maintained at NDBC.
Statistical and spectral analysis indicates a complex current structure temporally and vertically. Yearly averaged currents are approximately 5 cm/s from May 2005 through May 2010. At 1200 meters, the yearly averaged data range between 3.8 and 5.0 cm/s. The spectral analysis indicates that energy at 1000 and 1200 meter depths are dominated by processes near the inertial frequency (26.08 hours) and in the 17 - 20 day band that is related to Topographic Rossby Waves (TRWs). At 1000 meters, the energy in the two bands is approximately equal. Energy in the TRW frequency band exceeds that in the inertial frequency band at 1200 meters depth. Although the inertial currents are obvious in the data record, they weaken with depth.
Individual time series are investigated to determine the impact of Loop Current Eddies and Gulf of Mexico hurricanes Katrina, Rita, Gustav, and Ike. Periodic currents at approximately 20-day intervals are obvious in the time series data following Loop Eddy generation. A common Loop Eddy path following eddy shedding is near the Green Canyon 645 site. Time series records show intense near-bottom currents. The highest speed currents at this location, exceeding 35 cm/s are associated with the passage of nearby Loop Eddies. Hurricanes also pass near the Green Canyon site and the near bottom currents respond on a delayed basis.
C1 [Crout, Richard L.] NOAA Natl Weather Serv, Natl Data Buoy Ctr, Stennis Space Ctr, MS 39529 USA.
[Brown, Andy; Krumm, Jordan] EGS MetOcean Sound Syst, Houston, TX USA.
[Leung, Pak] GL Noble Denton, Houston, TX USA.
[Li, Chunyan] Louisiana State Univ, Baton Rouge, LA 70803 USA.
RP Crout, RL (reprint author), NOAA Natl Weather Serv, Natl Data Buoy Ctr, Stennis Space Ctr, MS 39529 USA.
EM Richard.crout@noaa.gov
NR 0
TC 0
Z9 0
U1 0
U2 2
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-4673-0829-8; 978-1-4673-0830-4
PY 2012
PG 5
WC Engineering, Multidisciplinary; Telecommunications
SC Engineering; Telecommunications
GA BDW56
UT WOS:000315350300335
ER
PT B
AU Crout, RL
LeBlanc, L
Petraitis, D
Bernard, LJ
AF Crout, Richard L.
LeBlanc, Lex
Petraitis, Dawn
Bernard, Landry J.
GP IEEE
TI Internal Wave Signatures in the Tropical Atmosphere Ocean Array from
Paired Moorings
SO 2012 OCEANS
LA English
DT Proceedings Paper
CT MTS/IEEE Oceans Conference
CY OCT 14-19, 2012
CL Virginia Beach, VA
SP IEEE, Marine Technol Soc (MTS), IEEE OES (IEEE/OES)
DE TAO Array; TAO Refresh; Internal Waves; Data comparisons; thermocline;
Subsurface Temperature
AB In order to replace obsolescent sensors in the Tropical Atmosphere Ocean (TAO) array and comply with the Ten Climate Principles, twenty-nine TAO Refresh buoys were deployed near paired TAO Legacy buoys for approximately one year each. At the end of each deployment, a statistical comparison of the daily averaged data was conducted for each pair of sensors. The results are summarized elsewhere. The subsurface ocean temperature sensor comparisons provided some unexpected results. While the average ocean temperature differences within the mixed-layer and at depth were nearly identical, average temperature differences in the thermocline were higher than expected and not within the statistical accuracy of the sensors. A comparison of the variability of the paired ocean temperature sensors and the amount of drift that occurred during each deployment led to the conclusion that the TAO Refresh sensors were reporting the same oceanographic phenomena as the TAO Legacy sensors.
Closer examination of the high resolution (10-minute interval) ocean temperature data within the thermocline exhibited internal wavelike signatures. At some locations within the water column, the temperature at a single depth changes 10 Kelvins over a period of 10 minutes. Although this is an extreme example, it indicates the difficulty in comparing the data from sensors on moorings which were generally less than 5 kilometers apart. The internal wavelike signatures range from small to greater than 100 meter amplitudes. Attempts to apply a phase shift to the data to compensate for the movement of these features were unsuccessful, suggesting that the internal wave signatures were arriving from different directions at various times. These phenomena are prevalent throughout the TAO array.
C1 [Crout, Richard L.; LeBlanc, Lex; Petraitis, Dawn; Bernard, Landry J.] NOAA Natl Weather Serv, Natl Data Buoy Ctr, Stennis Space Ctr, MS 39529 USA.
RP Crout, RL (reprint author), NOAA Natl Weather Serv, Natl Data Buoy Ctr, Stennis Space Ctr, MS 39529 USA.
EM richard.crout@noaa.gov
NR 3
TC 0
Z9 0
U1 1
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-4673-0829-8
PY 2012
PG 5
WC Engineering, Multidisciplinary; Telecommunications
SC Engineering; Telecommunications
GA BDW56
UT WOS:000315350300334
ER
PT B
AU Heitsenrether, RM
Davis, E
Sprenke, J
Teng, CC
AF Heitsenrether, Robert M.
Davis, Edgar
Sprenke, James
Teng, Chung-Chu
GP IEEE
TI Development and Test of a Real-Time Wave Measurement System with an
Acoustic Waves and Current Profiler
SO 2012 OCEANS
LA English
DT Proceedings Paper
CT MTS/IEEE Oceans Conference
CY OCT 14-19, 2012
CL Virginia Beach, VA
SP IEEE, Marine Technol Soc, IEEE Ocean Engn Soc
AB The National Oceanic and Atmospheric Administration's (NOAA) Center for Operational Oceanographic Products and Services (CO-OPS) currently maintains twenty operational Physical Oceanographic Real-Time System (PORTS (R)) observatories throughout United States coastal regions. To expand its measurement capabilities, CO-OPS recently developed and tested a real-time wave measurement system featuring a Nortek 1-MHz Acoustic Waves and Current Profiler (AWAC). The test system consisted of a bottom platform assembly and a surface communications buoy. The bottom assembly contained the AWAC, a LinkQuest omnidirectional acoustic bottom modem, batteries, and a Benthos acoustic release with tethered pop-up float. The surface buoy supported a LinkQuest acoustic surface modem, an Iridium communication system, solar cells, battery, GPS receiver, and temperature and voltage sensors. A 35-day field test of this real-time wave system was conducted from June 16 through July 20, 2011, in shallow water (19 m) Atlantic Ocean region approximately 10 nautical miles off of the coast of Virginia. The site was in close proximity (approximately 190 m) to a Datawell Waverider buoy that is maintained by the Scripps Institute of Oceanography Coastal Data Information Program (CDIP). During the field test, bulk wave parameters, including significant wave height and average wave period, were transmitted real-time every 30 minutes. Raw data recorded internally on the AWAC included 'burst' samples of 2048, 2-Hz values, collected every half hour. After the AWAC was recovered at the end of the field test, raw data were downloaded and used to calculate half hourly power spectra, both non-directional and directional. The resulting field test data were used to compare measurements from the AWAC and Datawell Waverider. A description of the real-time AWAC waves system and field test performance is presented, along with a comparison of AWAC versus Datawell buoy measurements for both half hourly wave bulk parameters and frequency spectra.
C1 [Heitsenrether, Robert M.] Natl Ocean & Atmospher Adm, Ctr Operat Oceanog Prod & Serv, Chesapeake, VA 23320 USA.
Chesapeake VA, Atlant Operat Branch, Silver Spring, MD USA.
RP Heitsenrether, RM (reprint author), Natl Ocean & Atmospher Adm, Ctr Operat Oceanog Prod & Serv, Chesapeake, VA 23320 USA.
NR 5
TC 0
Z9 0
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-4673-0829-8; 978-1-4673-0830-4
PY 2012
PG 7
WC Engineering, Multidisciplinary; Telecommunications
SC Engineering; Telecommunications
GA BDW56
UT WOS:000315350300299
ER
PT B
AU Howard, M
Crout, RL
Toll, RF
AF Howard, Matthew
Crout, Richard L.
Toll, Raymond F., Jr.
GP IEEE
TI US IOOS Program Office Quality Assurance of Real-Time Ocean Data Project
SO 2012 OCEANS
LA English
DT Proceedings Paper
CT MTS/IEEE Oceans Conference
CY OCT 14-19, 2012
CL Virginia Beach, VA
SP IEEE, Marine Technol Soc, IEEE Ocean Engn Soc
DE IOOS; QARTOD; quality control; certification criteria
AB The Quality Assurance of Real-Time Ocean Data (QARTOD) Project is an activity of the U.S. Integrated Ocean Observing System (IOOS) Program Office designed to establish and document the minimum quality control and quality assurance procedures a non-federal Regional Information Coordination Entity must perform to meet certification criteria. Regional entities like the Gulf of Mexico Coastal Ocean Observing System Regional Association, and others, expect to benefit from certification by gaining federal protection from civil liability associated with dissemination and use of IOOS data and by becoming eligible to compete for future funding opportunities which may require certification. More importantly, these procedures will help ensure that only valid qualified data are inserted into and redistributed by the national data system.
C1 [Howard, Matthew] Texas A&M Univ, Dept Oceanog, College Stn, TX 77843 USA.
[Crout, Richard L.] Natl Data Buoy Ctr, Stennis Space Ctr, Stennis Space Ctr, MS USA.
[Toll, Raymond F., Jr.] SAIC, Virginia Beach, VA USA.
RP Howard, M (reprint author), Texas A&M Univ, Dept Oceanog, College Stn, TX 77843 USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-4673-0829-8; 978-1-4673-0830-4
PY 2012
PG 3
WC Engineering, Multidisciplinary; Telecommunications
SC Engineering; Telecommunications
GA BDW56
UT WOS:000315350300095
ER
PT B
AU Kaiser, CL
Kinsey, JC
Pinner, W
Yoerger, DR
German, CR
Van Dover, CL
AF Kaiser, Carl L.
Kinsey, James C.
Pinner, Webb
Yoerger, Dana R.
German, Christopher R.
Van Dover, Cindy Lee
GP IEEE
TI Satellite Based Remote Management and Operation of a 6000m AUV
SO 2012 OCEANS
LA English
DT Proceedings Paper
CT MTS/IEEE Oceans Conference
CY OCT 14-19, 2012
CL Virginia Beach, VA
SP IEEE, Marine Technol Soc, IEEE Ocean Engn Soc
DE AUV; Sentry; satellite; telepresence; remote operation; Okeanos Explorer
AB During a July, 2012 expedition to the Hatteras Transverse Canyon, Blake Ridge, and Cape Fear Diapir, the AUV Sentry, aboard the NOAA Ship Okeanos, conducted experiments into remote operation of an AUV via satellite link. Remote launch, remote engineering, remote data processing and remote watch standing were all explored with varying degrees of success. Remote engineering and troubleshooting was found to be exceptionally promising and worthy of further effort. Remote data processing was a valuable addition for a telepresence enabled cruise where a substantial component of the science team was on shore. Remore watch standing and remote launch were both found to be viable though requiring improvement. Technology infrastructure is discussed along with successes, difficulties, and recommendations for future improvement.
C1 [Kaiser, Carl L.; Kinsey, James C.; Yoerger, Dana R.; German, Christopher R.] Woods Hole Oceanog Inst, Woods Hole, MA 02543 USA.
[Pinner, Webb] NOAA, Off Ocean Explorat & Res, Silver Spring, MD USA.
[Van Dover, Cindy Lee] Duke Univ, Marine Lab, Durham, NC 27706 USA.
RP Kaiser, CL (reprint author), Woods Hole Oceanog Inst, Woods Hole, MA 02543 USA.
FU NOAA Office of Ocean Exploration and Research Okeanos Explorer program;
NSF OCE [1036843]; ONR [N00014- 09- 10500]; NSF [OCE 1031050]
FX This work was funded in part by the NOAA Office of Ocean Exploration and
Research Okeanos Explorer program, in part by NSF OCE 1036843, in part
by ONR N00014- 09- 10500 and in part by NSF Bio OCE 1031050 to CLVD.
NR 7
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-4673-0829-8; 978-1-4673-0830-4
PY 2012
PG 7
WC Engineering, Multidisciplinary; Telecommunications
SC Engineering; Telecommunications
GA BDW56
UT WOS:000315350300119
ER
PT B
AU Krop, DS
Holloway, AG
Alberg, DW
AF Krop, David S.
Holloway, Anna G.
Alberg, David W.
GP IEEE
TI The USS Monitor: A Pioneering Model for Education and Outreach
SO 2012 OCEANS
LA English
DT Proceedings Paper
CT MTS/IEEE Oceans Conference
CY OCT 14-19, 2012
CL Virginia Beach, VA
SP IEEE, Marine Technol Soc, IEEE Ocean Engn Soc
DE USS Monitor; Mariners' Museum; NOAA; Monitor National Marine Sanctuary;
education; outreach; marine archaeology
AB In the summer of 2002, staff from NOAA's Monitor National Marine Sanctuary (NOAA) and the U. S. Navy recovered USS Monitor's icon revolving gun turret from the Atlantic Ocean, successfully capping off a multi-year recovery of over 200 tons of artifacts from the wreck site of the Civil War ironclad. Since that time, NOAA and their partners at The Mariners' Museum (TMM) have undertaken a pioneering collaborative effort to promote the historical and cultural significance of this National Historical Landmark. Education and outreach initiatives form the backbone of this collaboration, including an award-winning exhibition and conservation laboratory at The Mariners' Museum, classroom initiatives, distance learning, and events and festivals around the country, all of which have introduced hundreds of thousands of people to the Monitor's story. The goals of this multi-pronged approach are to raise public awareness; encourage public involvement in resource protection; increase knowledge about maritime history, science, and technology; and expand ocean and climate literacy. This paper will examine the methods used by the partnership to achieve these goals and provide a template for best practices in maritime science and history education through a public-private partnership.
The USS Monitor Center at The Mariners' Museum in Newport News, Virginia, is the official repository for all artifacts recovered from the Monitor National Marine Sanctuary and associated archives, and it is the central hub of all outreach and education. This 63,500 square foot facility contains the award-winning Ironclad Revolution exhibit, including conserved artifacts, immersive multimedia experiences, and re-created ship interiors. The Monitor Center also houses the Batten Conservation Laboratory, a state-of-the-art marine artifact conservation facility staffed by a team of international experts. NOAA and TMM designed the lab for maximum visitor interplay by incorporating massive viewing platforms and windows into the lab, a series of live web cameras, and periodically offering behind-the-scenes tours. The regular transition of conserved artifacts from the lab into the gallery also allows for a dynamic visitor experience over time. The Monitor Center increases TMM's international profile and simultaneously promotes NOAA's objectives of public awareness of this precious national resource and increases the historical, cultural, and scientific knowledge of mankind's interaction with the ocean.
NOAA continues to work with other regional organizations in an education and outreach capacity to tell the USS Monitor's story to a broader audience. These other partners, including the Graveyard of the Atlantic Museum, North Carolina Aquarium, and Civil War Naval Museum, ultimately engage and encourage the public to visit The Mariners' Museum for a deeper learning and entertainment experience. NOAA is also working with its partners to promote a USS Monitor Trail. Although still in development, this interactive tool will allow people to trace Monitor's story and history from Buffalo, NY to the Hudson Valley and all the way down the East Coast to Hampton Roads where Monitor battled the Confederate ironclad CSS Virginia and ultimately to the ship's final resting place within the Monitor National Marine Sanctuary off Hatteras, NC. The Monitor Trail has the potential to link people who previously had little or no understanding of the ironclad to the key locations of the country responsible for transforming the Monitor from a series of conceptual sketches into the savior of the Union Navy and future of naval technology.
TMM and NOAA are using other traditional and technologically advanced methods of education and outreach. Experts in the fields of history, science, conservation, and technology offer formal and informal educational programs to groups of all ages. Museum and sanctuary visitors, school systems, lifelong learning groups, and other sanctuary constituents are primary audiences. Distance learning is utilized to target groups outside of the region. A robust interactive video conferencing (IVC) facility allows TMM and NOAA to reach national and international audiences. To date, IVC programs have reached thousands of students in 29 states and 6 countries.
Using the Monitor's historical significance as the entry point, NOAA and TMM are able to introduce concepts that transcend a single vessel or moment in time. While the primary purpose for recovering over 1,500 artifacts from the Monitor National Marine Sanctuary was to make Monitor's story accessible to the widest possible audience, it was never intended to be purely a maritime historical story. By pursuing an integrated and immersive educational and outreach experience, TMM and NOAA have pioneered a comprehensive approach to promote awareness and protection not only of the Monitor National Marine Sanctuary's natural and cultural resources, but also that of our nation's oceans.
C1 [Krop, David S.; Holloway, Anna G.] Mariners Museum, USS Monitor Ctr, Newport News, VA 23606 USA.
[Alberg, David W.] Natl Ocean & Atmospher Adm, Monitor Natl Marine Sanctuary, Newport News, VA 23606 USA.
RP Krop, DS (reprint author), Mariners Museum, USS Monitor Ctr, Newport News, VA 23606 USA.
NR 0
TC 0
Z9 0
U1 1
U2 11
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-4673-0829-8; 978-1-4673-0830-4
PY 2012
PG 5
WC Engineering, Multidisciplinary; Telecommunications
SC Engineering; Telecommunications
GA BDW56
UT WOS:000315350300180
ER
PT B
AU Landon, TF
Heitsenrether, RM
AF Landon, Thomas F.
Heitsenrether, Robert M.
GP IEEE
TI New Real-Time Storm Surge Monitoring Network in Mobile Bay, Alabama
SO 2012 OCEANS
LA English
DT Proceedings Paper
CT MTS/IEEE Oceans Conference
CY OCT 14-19, 2012
CL Virginia Beach, VA
SP IEEE, Marine Technol Soc, IEEE Ocean Engn Soc
AB In the spring of 2012, NOAA's Center for Operational Oceanographic Products and Services (CO-OPS), in partnership with the Mobile County Commission, established the first of it's kind Mobile Bay Storm Surge Monitoring Network (MBSSMN). The combination of Mobile Bay's long and narrow coastline boundaries, unique bathymetry, mouth opening to the Gulf of Mexico, and extensive tributary network results in a complex hydrodynamic system where water levels can vary significantly in space and time depending on the combined forcing from tides, winds, and pressure that may occur. The task of establishing a storm surge monitoring network involved installation of five new hurricane-hardened water level stations strategically located throughout coastal Mobile County. With permission from the Alabama State Port Authority, this project's data is combined with the data provided by multiple stations in CO-OPS' existing Mobile Physical Oceanographic Real Time System (PORTS)(R). This provides stakeholders with a unique offering of spatially densified water level, meteorological, and tidal current data available on the Mobile PORTS (R) web page. Mobile County now has a total of eight real time water level observatories to provide full data coverage of its coastline from the Mississippi State line to Chickasaw in the Mobile River Delta at the north end of the county. MBSSMN is also the first local storm surge network in the country to have five of its monitoring stations elevated to Category Five modeled storm surge heights, ensuring the collection of data when it is needed most critically. The network will provide data and products that are critical for coastal resource management across the region on an ongoing basis, but most importantly supporting emergency management decisions before and during the passage of the most severe episodic storm events.
Due to challenging station requirements and limited infrastructure in key locations, CO-OPS opted to employ remote radar range sensors to measure water level. Utilization of radar gauges for this purpose provided many operational advantages. After several years of testing, this radar sensor is being used operationally for the first time by CO-OPS, with excellent results after its first year of data collection. The first three MBSSMN stations were installed atop state highway bridges in southern Mobile County. This setup was possible due to the radar water level sensor's ability to measure the sea surface remotely from above, with no components in contact with the water column.
Installation of the first three stations was completed in July 2011 and the first storm surge event to be captured was during the passage of Tropical Storm Lee in September 2011. The final two stations are elevated four pile structures that were constructed to raise the instrumentation above the maximum modeled Category Five hurricane storm surge height (22-25 feet above NAVD88).
This paper will summarize the unique project requirements, committed stakeholder support, inventive problem resolution, and superb data quality that identify the MBSSMN as a template for future collaborative efforts of this type. A summary overview of the water level station designs will be presented along with observations collected during the passage of Tropical Storm Lee and other high wind surge events. Sample water level data that have been collected across the five network stations during storm events provide examples of temporal and spatial variability of a surge event in Mobile Bay.
C1 [Landon, Thomas F.] NOAA, Silver Spring, MD 20910 USA.
[Heitsenrether, Robert M.] Natl Ocean & Atmospher Adm, Chesapeake, VA 23320 USA.
RP Landon, TF (reprint author), NOAA, Silver Spring, MD 20910 USA.
NR 10
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-4673-0829-8; 978-1-4673-0830-4
PY 2012
PG 8
WC Engineering, Multidisciplinary; Telecommunications
SC Engineering; Telecommunications
GA BDW56
UT WOS:000315350300262
ER
PT B
AU Lanerolle, LWJ
Paternostro, CL
Dusek, G
McLaughlin, LR
Lanerolle, LWJ
Skaling, S
AF Lanerolle, Lyon W. J.
Paternostro, Christopher L.
Dusek, Gregory
McLaughlin, Laura Rear
Lanerolle, Lyon W. J.
Skaling, Sean
GP IEEE
TI An Assessment of the Renewable Hydrokinetic Energy Potential in Cook
Inlet, Alaska
SO 2012 OCEANS
LA English
DT Proceedings Paper
CT MTS/IEEE Oceans Conference
CY OCT 14-19, 2012
CL Virginia Beach, VA
SP IEEE, Marine Technol Soc, IEEE Ocean Engn Soc
DE tidal; hydrokinetic energy; numerical model; ROMS; digital elevation
map; power density; extraction time
ID BULK PARAMETERIZATION; MODEL; OCEAN; EXPLICIT; SURFACE; SYSTEM
AB In this article, Rutgers University's Regional Ocean Modeling System (ROMS) was employed with tidal forcing only to carry out a numerical assessment of the spatio-temporal distribution of hydrokinetic energy in Cook Inlet, Alaska by using the power density metric as a proxy. Power density maps showed that the optimal locations for turbine placement were the strait between West and East Foreland and the Anchor Point, North Foreland, Point Possession, northern Fire Island and Knik Arm regions. This assessment will be repeated using a full synoptic hindcast carried out for the June 20-August 20, 2012 time period to simulate realistic conditions. The final assessment from this modeling study will be provided to the Alaska Energy Authority to aid in siting hydrokinetic turbine projects.
C1 [Lanerolle, Lyon W. J.; Paternostro, Christopher L.; Dusek, Gregory; McLaughlin, Laura Rear] NOAA, Natl Ocean Serv, Silver Spring, MD 20910 USA.
[Lanerolle, Lyon W. J.] Earth Resources Technol Inc, Laurel, MD 20707 USA.
[Skaling, Sean] Alaska Energy Author, Anchorage, AK 99503 USA.
RP Lanerolle, LWJ (reprint author), NOAA, Natl Ocean Serv, Silver Spring, MD 20910 USA.
EM Lyon.Lanerolle@noaa.gov
NR 17
TC 0
Z9 0
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-4673-0829-8; 978-1-4673-0830-4
PY 2012
PG 9
WC Engineering, Multidisciplinary; Telecommunications
SC Engineering; Telecommunications
GA BDW56
UT WOS:000315350300089
ER
PT B
AU Lindley, C
Zervas, C
AF Lindley, Carolyn
Zervas, Chris
GP IEEE
TI Exceedance Probability Statistics: the Likelihood that Coastal Water
Levels Will Reach Extreme Elevations
SO 2012 OCEANS
LA English
DT Proceedings Paper
CT MTS/IEEE Oceans Conference
CY OCT 14-19, 2012
CL Virginia Beach, VA
SP IEEE, Marine Technol Soc (MTS), IEEE OES (IEEE/OES)
DE Extreme water levels; storm tides; exceedance probability; sea levels
AB The Center for Operational Oceanographic Products and Services (CO-OPS) has developed a web-based product (http://tidesandcurrents.noaa.gov/est) to provide online access to exceedance probability statistics at approximately 110 long-term National Water Level Observation Network (NWLON) stations. Each of these stations has at least 30 years of data. The analysis is based on the observed monthly extreme water levels tabulated for the period of record for each station.
C1 [Lindley, Carolyn; Zervas, Chris] NOAA, Ctr Operat Oceanog Prod & Serv, Natl Ocean Serv, Silver Spring, MD 20910 USA.
RP Lindley, C (reprint author), NOAA, Ctr Operat Oceanog Prod & Serv, Natl Ocean Serv, Silver Spring, MD 20910 USA.
NR 6
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-4673-0829-8
PY 2012
PG 7
WC Engineering, Multidisciplinary; Telecommunications
SC Engineering; Telecommunications
GA BDW56
UT WOS:000315350300130
ER
PT B
AU Mineart, GM
Furgerson, JA
AF Mineart, Gary M.
Furgerson, John A.
GP IEEE
TI Ocean Water-Leaving Radiance Measurements by the Joint Polar Satellite
System
SO 2012 OCEANS
LA English
DT Proceedings Paper
CT MTS/IEEE Oceans Conference
CY OCT 14-19, 2012
CL Virginia Beach, VA
SP IEEE, Marine Technol Soc, IEEE Ocean Engn Soc
DE JPSS; NOAA; satellite; requirements; water-leaving radiance; ocean
color; chlorophyll; validation
ID COLOR ALGORITHM
AB Measurements of ocean remote sensing multispectral optical reflectance by the Joint Polar Satellite System (JPSS) have become increasingly important to the National Oceanic and Atmospheric Administration (NOAA) in plans for satisfying operational requirements for ocean and coastal observations. Such observations are used to derive water-leaving radiance information from which operational applications of importance to public health, safety, and commerce depend, including the detection and monitoring of harmful algal blooms. The higher NOAA priority stems from the recent loss or advanced age of legacy ocean color missions combined with the absence of supporting multispectral or hyperspectral sensing capabilities in other planned Earth observing satellite systems. The JPSS capability will provide ocean remote sensing reflectance in the five visible wavelength bands of the Visible Infrared Imager-Radiometer Suite (VIIRS) from which normalized water-leaving radiance, inherent optical properties, and Chlorophyll-a concentration may be derived. VIIRS near-infrared wavelength bands are used to calculate the required atmospheric corrections and account for the 80-90% of the top-of-atmosphere radiance. The associated JPSS data product performance requirements have matured in comparison to heritage polar satellite requirements. Enhancements to the JPSS requirements include expanded measurement ranges for Chlorophyll-a and optical scattering and absorption, application of measurement accuracy and precision requirements exclusively to the VIIRS visible blue band, a prescription for normalized water-leaving radiance errors in the contributing visible bands so that they are spectrally correlated as observed in heritage data, an extension of the minimum ocean depth subject to accuracy and precision requirements to 30 m, and additional delivery of retrieved data in regions classified by the VIIRS Land-Water Mask as Coastal and Inland Waters. Preliminary science validation results using initial VIIRS data from the Suomi National Polar-orbiting Partnership, a risk-reduction mission for JPSS, indicate excellent potential for fully satisfying operational requirements for ocean color observations.
C1 [Mineart, Gary M.] Noblis Inc, Ctr Sustainabil, Falls Church, VA 22042 USA.
[Furgerson, John A.] Natl Ocean & Atmospher Adm, NOAA JPSS Program Off, Lanham, MD USA.
RP Mineart, GM (reprint author), Noblis Inc, Ctr Sustainabil, Falls Church, VA 22042 USA.
EM gary.mineart@noblis.org; john.furgerson@noaa.gov
FU NOAA under Noblis [DG133E- 12- BA- 0017]
FX Support for this paper was provided in part by NOAA under Noblis
Contract DG133E- 12- BA- 0017, Call Order 3/ 7.
NR 14
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-4673-0829-8; 978-1-4673-0830-4
PY 2012
PG 8
WC Engineering, Multidisciplinary; Telecommunications
SC Engineering; Telecommunications
GA BDW56
UT WOS:000315350300038
ER
PT B
AU Moustahfid, H
Jech, MM
Weise, MJ
Horne, JK
O'Dor, R
Alexander, C
AF Moustahfid, Hassan
Jech, Michael M.
Weise, Michael J.
Horne, John K.
O'Dor, Ron
Alexander, Charles
GP IEEE
TI Advancing "Bio" Sensor Integration with Ocean Observing Systems to
Support Ecosystem Based Approaches
SO 2012 OCEANS
LA English
DT Proceedings Paper
CT MTS/IEEE Oceans Conference
CY OCT 14-19, 2012
CL Virginia Beach, VA
SP IEEE, Marine Technol Soc, IEEE Ocean Engn Soc
DE "Bio" sensor; Ocean Observing Systems; US IOOS; Ecosystem-Based
Approaches
ID IN-SITU; CLASSIFICATION; MANAGEMENT; PREDATOR; PLANKTON
AB The vision of the US Integrated Ocean Observing System (U. S. IOOS) is to provide information and services to the nation for enhancing our understanding of the ecosystem and climate; sustaining living marine resources; improving public health and safety; reducing impacts of natural hazards and environmental changes; and expanding support for marine commerce and transportation. In the last decade U. S. IOOS has made considerable progress in advancing physical and chemical observing systems, but only modest progress integrating biological observations from disparate data providers, and there remain challenges to fully integrate biological observing systems into U. S. IOOS. Recent technological advances in miniature, low power "bio" sensor can record everything from plankton greater than 20 micrometer with electro-optical technology, to hydroacoustic sensors that can record meso-zooplankton and nekton from mobile autonomous platforms, to satellite linked recorders that can record the movement and behavior of the largest marine predators. This opens up remarkable opportunities for observing the biotic realm at critical spatio-temporal scales that are most relevant to organisms, which have been out of reach until present. "bio" sensor technology is mature and proven to be operational and biological monitoring should be an integrated component of observing systems. Optimally, it should be clearly defined and implemented in close association with physical oceanographers. The integration of biological observing into U. S IOOS will only strengthen the national observing capabilities to respond to the growing needs for ecosystem observation to support ecosystem-based approaches and sustain our living marine resources.
C1 [Moustahfid, Hassan; Alexander, Charles] NOAA, US Integrated Ocean Observing Syst, Silver Spring, MD 20910 USA.
[Jech, Michael M.] NOAA Fisheries, Northeast Fisheries Sci Ctr, Woods Hole, MA 02543 USA.
[Weise, Michael J.] US Navy, Off Naval Res, Arlington, VA USA.
[Horne, John K.] Univ Washington, Sch Fisheries, Seattle, WA 98195 USA.
[O'Dor, Ron] Dalhousie Univ, Dept Biol, Halifax, NS, Canada.
RP Moustahfid, H (reprint author), NOAA, US Integrated Ocean Observing Syst, Silver Spring, MD 20910 USA.
EM Hassan.Moustahfid@noaa.gov; jhorne@uw.edu
NR 32
TC 0
Z9 0
U1 0
U2 4
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-4673-0829-8; 978-1-4673-0830-4
PY 2012
PG 7
WC Engineering, Multidisciplinary; Telecommunications
SC Engineering; Telecommunications
GA BDW56
UT WOS:000315350300333
ER
PT B
AU Moustahfid, H
Link, J
O'Dor, R
AF Moustahfid, Hassan
Link, Jason
O'Dor, Ron
GP IEEE
TI Detecting trajectories of change in marine ecosystems: biotic indicators
for observing systems
SO 2012 OCEANS
LA English
DT Proceedings Paper
CT MTS/IEEE Oceans Conference
CY OCT 14-19, 2012
CL Virginia Beach, VA
SP IEEE, Marine Technol Soc, IEEE Ocean Engn Soc
DE Ecosystem indicators; biological variables; Ocean Observing System;
ecosystem assessments
ID FISHERIES MANAGEMENT; FISH COMMUNITY; CRITERIA; FRAMEWORK
AB Federal, regional, state, territorial, tribal, and local aquatic resource review processes have all moved towards implementation of Ecosystem-Based Management (EBM). This provides an opportunity to improve ocean, coastal, and Great Lakes stewardship versus continuing with a fragmented, sector-specific process that only looks at individual components of or influences on an ecosystem. To accomplish this goal, EBM requires integrated ecosystem assessments. These assessments require observing data that reflect the pressures and responses that are of concern to managers. Monitoring and indicators of the physical aspects of marine systems are well developed, as is the development and application of models for the physical features of marine ecosystems. Although extant and monitored, relative to physical features, indicators of marine habitat and the biota need to be better integrated with Ocean Observing Systems. This will ensure sufficient monitoring to detect critical changes in marine ecosystems. Here we review a suite of such ecosystem indicators to measure change in the biological properties of marine ecosystems. From that, we provide recommendations for their integration within the US Integrated Ocean Observing System (U.S IOOS).
C1 [Moustahfid, Hassan] US Integrated Ocean Observing Syst, Silver Spring, MD 20910 USA.
[Link, Jason] NOAA, Fisher NE Fisher Sci Ctr, Woods Hole, MA USA.
[O'Dor, Ron] Dalhousie Univ, Dept Biol, Halifax, NS, Canada.
RP Moustahfid, H (reprint author), US Integrated Ocean Observing Syst, Silver Spring, MD 20910 USA.
EM Hassan.Moustahfid@noaa.gov
NR 40
TC 0
Z9 0
U1 0
U2 2
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-4673-0829-8; 978-1-4673-0830-4
PY 2012
PG 6
WC Engineering, Multidisciplinary; Telecommunications
SC Engineering; Telecommunications
GA BDW56
UT WOS:000315350300273
ER
PT B
AU Patterson, M
Marston, R
Christopher, S
Jacobs, A
McDonald, A
Nicinska, J
Chadwick, R
AF Patterson, M.
Marston, R.
Christopher, S.
Jacobs, A.
McDonald, Alexander
Nicinska, Justyna
Chadwick, Russ
GP IEEE
TI Control of Tactical-Scale, Micro-Unmanned Surface Vehicles (USVs) Ocean
Observations Platforms Systems and Observations
SO 2012 OCEANS
LA English
DT Proceedings Paper
CT MTS/IEEE Oceans Conference
CY OCT 14-19, 2012
CL Virginia Beach, VA
SP IEEE, Marine Technol Soc, IEEE Ocean Engn Soc
DE EMILY; micro-USV; sensors; autonomous navigation; modeling; hurricane;
unmanned surface vessels
AB As sensors, communications devices and automation becomes more capable and powerful, there is an increase in the use of unmanned systems of all types. This paper describes the development and testing of a micro-USV platform based around an initial design capability called EMILY, for three different applications; expeditionary science missions, littoral mapping exercises and new techniques to track hurricanes while continuously gathering data from within the eye. Each of these applications has different requirements and these are discussed briefly for the first two applications and in detail for the third, hurricane application.
C1 [Patterson, M.; Marston, R.; Christopher, S.; Jacobs, A.] Hydronalix, 1691 W Duval Commerce Court,141, Green Valley, AZ 85614 USA.
[McDonald, Alexander; Nicinska, Justyna; Chadwick, Russ] NOAA, Off Ocean & Atmospher Res, Silver Spring, MD 20910 USA.
RP Patterson, M (reprint author), Hydronalix, 1691 W Duval Commerce Court,141, Green Valley, AZ 85614 USA.
EM Mark.patterson@hydronalix.com; Rori.marston@hydronalix.com;
alexander.e.macdonald@noaa.gov; Justyna.nicinska@noaa.gov
FU NOAA [RA133R-11 CN-0188]; U.S. Navy [DAAH01-02-C-R190/W31P4Q-06-C-R190/
W31P4Q-10-C-R190]; University of Arizona; GLIMS program; Heavy Fuels
Engineering (Tucson); Battelfield Engineering (Canada)
FX The authors wish to thank NOAA who partially funding this effort under
contract # RA133R-11 CN-0188 and to the U.S. Navy who partially funded
this work through contract # DAAH01-02-C-R190/W31P4Q-06-C-R190/ W31P4Q-
10-C-R190. We would also like to thank Dr Jeff Kargel (University of
Arizona) who helped fund this work through the GLIMS program, Seebyte
(Scotland), Heavy Fuels Engineering (Tucson), Battelfield Engineering
(Canada) who provided technical support and hardware to accompany some
of these efforts, and to James Fink, Geophysicist/ consultant Tucson.
NR 3
TC 0
Z9 0
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-4673-0829-8; 978-1-4673-0830-4
PY 2012
PG 6
WC Engineering, Multidisciplinary; Telecommunications
SC Engineering; Telecommunications
GA BDW56
UT WOS:000315350300217
ER
PT B
AU Taylor, CM
Smith, B
Stein, D
AF Taylor, Christine M.
Smith, Brian
Stein, David
GP IEEE
TI The Role of MarineCadastre.gov in Offshore Energy Planning
SO 2012 OCEANS
LA English
DT Proceedings Paper
CT MTS/IEEE Oceans Conference
CY OCT 14-19, 2012
CL Virginia Beach, VA
SP IEEE, Marine Technol Soc, IEEE Ocean Engn Soc
DE Renewable Energy; Marine; Cadastre; GIS; Marine Spatial Planning;
Data-sharing; North Carolina; South Carolina; Task Force Meeting
AB Many states along the U. S. East Coast are engaged in offshore wind energy planning through the Renewable Energy Task Force process led by the Bureau of Ocean Energy Management (BOEM). Participants from federal, state, and local government use the task forces as a venue to share information and minimize potential conflicts between existing ocean uses and offshore wind farm construction and operations. Task force participants often only make information available in static map form, making comparisons between data sets challenging. To address this, the North and South Carolina Renewable Energy Task Forces are collaborating with the MarineCadastre.gov team to facilitate data sharing.
The National Oceanic and Atmospheric Administration (NOAA) and BOEM have been collaborating since 2007 on MarineCadastre. gov, an integrated marine information system that provides jurisdictional, legal, physical, ecological, and ocean use data in a common geographic information system (GIS) framework. The MarineCadastre. gov website was developed in response to a call for a marine information system to support alternative energy development on the outer continental shelf in section 388 of the Energy Policy Act of 2005. Although the website has been designed specifically to support renewable energy siting within the U. S. outer continental shelf, it is also being used for various other ocean-related efforts. The MarineCadastre. gov website has three primary focus areas: Web map viewers and decision-support tools, a spatial data registry, and technical support and regional capacity building.
The North and South Carolina Wind Energy Task Forces are combining national-scale data from the website with information specific to their planning areas into simple viewers available in the Map Gallery section of the website. This approach allows users to assess and minimize potential conflicts of offshore wind energy development and operation with existing ocean uses. Multiple issues, such as fishing, shipping, and defense, are viewed and considered simultaneously, in one location, allowing members of the task force to see their own data in a wider context. This enhances the utility of the information that was previously compared using static maps. Users can turn data layers on and off and pan and zoom to specific locations in the planning area as questions arise. The North and South Carolina Wind Energy Task Force data viewers are a simple but powerful mechanism for identifying areas of potential incompatibility, enhancing communication between task force members, and increasing the overall effectiveness of the task force process.
The overarching goal of this work is to support the BOEM task forces in making sound decisions with the best available spatial information to facilitate responsible siting of offshore renewable energy infrastructure. This presentation will provide an overview of the primary focus areas of the MarineCadastre.gov project and its underlying technology, with particular attention given to the collaborations with the BOEM-led renewable energy task forces in North and South Carolina. Details on how these two BOEM task forces are incorporating use of the data viewers into their decision-making processes, the types of data being considered, and potential next steps for analyzing the spatial information in a group setting will be discussed.
C1 [Taylor, Christine M.] Bur Ocean Energy Management, Dept Interior, Herndon, VA 20170 USA.
[Smith, Brian; Stein, David] NOAA Coastal Serv Ctr, Dept Commerce, Charleston, SC USA.
RP Taylor, CM (reprint author), Bur Ocean Energy Management, Dept Interior, Herndon, VA 20170 USA.
EM Christine.Taylor@boem.gov; Brian.M.Smith@noaa.gov
NR 3
TC 0
Z9 0
U1 0
U2 6
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-4673-0829-8; 978-1-4673-0830-4
PY 2012
PG 6
WC Engineering, Multidisciplinary; Telecommunications
SC Engineering; Telecommunications
GA BDW56
UT WOS:000315350300285
ER
PT J
AU Montzka, SA
AF Montzka, Stephen A.
GP ASHRAE
NIST
TI HFCs in the Atmosphere: Concentrations, Emissions and Impacts
SO ASHRAE/NIST REFRIGERANTS CONFERENCE
LA English
DT Proceedings Paper
CT ASHRAE/NIST Refrigerants Conference
CY OCT 29-30, 2012
CL Natl Inst Stand & Technol, Gaithersburg, MD
SP ASHRAE, NIST
HO Natl Inst Stand & Technol
ID MONTREAL PROTOCOL; CLIMATE-CHANGE; GASES; AIR; CO2; VARIABILITY; FIRN
AB Concentrations of hydrofluorocarbons (HFCs) have increased in the global background atmosphere in recent years. By 2011 global mean HFC concentrations ranged from <= 1 parts per trillion for HFC-227ea to 65 ppt for HFC-134a. Although HFCs in the atmosphere do not deplete ozone, they are greenhouse gases (GHGs) that exert a warming influence on Earth's climate. Total direct heating supplied by all HFCs in 2011 was 0.019 W m(-2), which is <= 1% of the heating supplied by fossil-fuel-derived carbon dioxide (1.8 W m(-2)) or anthropogenic methane (0.5 W m(-2)) in the atmosphere. This warming influence, known also as radiative forcing, is currently small for HFCs because their concentrations are more than 6 orders of magnitude smaller than CO2. A comprehensive assessment of climate impacts of different GHGs, however, also accounts for their influence on climate integrated over time following their release to the atmosphere. This is important particularly for GHGs because some remain in the atmosphere for only days, while others have lifetimes longer than a century. The Global Warming Potential (GWP) provides a measure of the time-integrated radiative forcing arising from an emission of a GHG relative to that from an equivalent emission (by mass) of carbon dioxide. Most HFCs emitted to the atmosphere today have 100-year GWPs ranging from 100 to 14000, which are many times larger than CO2 (GWP = 1). Large increases in use and emission of high-GWP HFCs projected in the future imply a similarly large increase in radiative forcing from HFCs. Such an increase would offset much of the climate gains supplied by the Montreal Protocol in phasing out chlorofluorocarbons. The climate impact of future HFC use, however, would be minimized if the mix of HFCs (or other chemicals) adopted as substitutes had substantially lower GWPs than those in use today.
C1 Natl Ocean & Atmospher Adm, Boulder, CO 80301 USA.
RP Montzka, SA (reprint author), Natl Ocean & Atmospher Adm, Boulder, CO 80301 USA.
OI Montzka, Stephen/0000-0002-9396-0400
NR 29
TC 0
Z9 0
U1 2
U2 8
PU AMER SOC HEATING, REFRIGERATING AND AIR-CONDITIONING ENGS
PI ATLANTA
PA 1791 TULLIE CIRCLE NE, ATLANTA, GA 30329 USA
PY 2012
BP 17
EP 29
PG 13
WC Thermodynamics
SC Thermodynamics
GA BDW76
UT WOS:000315413200002
ER
PT J
AU McLinden, MO
Domanski, PA
Kazakov, A
Heo, J
Brown, JS
AF McLinden, Mark O.
Domanski, Piotr A.
Kazakov, Andrei
Heo, Jaehyeok
Brown, J. Steven
GP ASHRAE
NIST
TI Possibilities, Limits, and Tradeoffs for Refrigerants in the Vapor
Compression Cycle
SO ASHRAE/NIST REFRIGERANTS CONFERENCE
LA English
DT Proceedings Paper
CT ASHRAE/NIST Refrigerants Conference
CY OCT 29-30, 2012
CL Natl Inst Stand & Technol, Gaithersburg, MD
SP ASHRAE, NIST
HO Natl Inst Stand & Technol
ID RATE CONSTANTS; HYDROXYL; PURE
AB We explore the possibilities for refrigerants having low global warming potential (GWP) by use of two distinct, but complementary, approaches. In the first approach, we evaluate the effect of a refrigerant's fundamental thermodynamic parameters on its performance in the simple vapor compression cycle and several variations on the basic cycle; this defines the limits of what is thermodynamically possible for a refrigerant. The analysis employs evolutionary algorithms, and it identifies the critical temperature, critical pressure, and ideal-gas heat capacity as the most significant fluid parameters. There is a fundamental tradeoff between high efficiency and high volumetric capacity for the vapor compression cycle. Performance differences between refrigerants in the simple cycle can be reduced by proper cycle modifications. In the second approach, we examine more than 56 000 chemical compounds from a public-domain database of chemical structures. A subset of about 1200 candidate fluids is identified by applying screening criteria to estimates for GWP, flammability, stability, toxicity, and critical temperature. The fluids with critical temperatures below 400 K (i.e., those that could be used in current equipment with minor modifications), are dominated by halogenated olefins. Additional chemical families, including ethers and cyclic compounds, are represented among the fluids having critical temperatures above 400 K.
C1 [McLinden, Mark O.; Kazakov, Andrei] NIST, Thermophys Properties Div, Boulder, CO 80305 USA.
[Domanski, Piotr A.; Heo, Jaehyeok] NIST, Div Energy & Environm, Boulder, CO 80305 USA.
[Brown, J. Steven] Catholic Univ Amer, Dept Mech Engn, Washington, DC USA.
RP McLinden, MO (reprint author), NIST, Thermophys Properties Div, Boulder, CO 80305 USA.
FU U. S. Department of Energy; Office of Energy Efficiency and Renewable
Energy [DE-EE002057]
FX This work was supported by the U. S. Department of Energy, Office of
Energy Efficiency and Renewable Energy under contract no. DE-EE002057
with A. Bouza and B. Habibzadeh serving as Project Managers. We also
thank our collaborators J. Wojtusiak of George Mason University,
Fairfax, VA, and J. Filliben and A. Pintar of the NIST Statistical
Engineering Division.
NR 34
TC 0
Z9 0
U1 1
U2 3
PU AMER SOC HEATING, REFRIGERATING AND AIR-CONDITIONING ENGS
PI ATLANTA
PA 1791 TULLIE CIRCLE NE, ATLANTA, GA 30329 USA
PY 2012
BP 49
EP 68
PG 20
WC Thermodynamics
SC Thermodynamics
GA BDW76
UT WOS:000315413200004
ER
PT S
AU Stutzman, PE
AF Stutzman, Paul E.
BE Broekmans, MATM
Pollmann, H
TI Microscopy of Clinker and Hydraulic Cements
SO APPLIED MINERALOLGY OF CEMENT & CONCRETE
SE Reviews in Mineralogy & Geochemistry
LA English
DT Review; Book Chapter
AB Microscopy has played an essential part in developing our knowledge of Portland cement clinker phase composition, and is routinely used to monitor kiln operating conditions to insure cement quality. Our developing understanding of the phase composition of clinker coincides with the early days of the polarized light microscope where the then-new instrument was used to resolve conflicting theories on the phase constituents of cement clinker, essentially a man-made rock formed through sintering a ground, blended mixture of limestone, clay, and iron oxides. The phase abundance, distribution and texture of cement clinker reflect the combination of proportioning, grinding, and homogenization of the raw materials, and the firing and cooling history of the clinkering process. The ability to visualize, record and quantify phase compositional and textural attributes of the clinker allowed cement chemists a view into this process, to develop a better understanding on clinker production, and to be able to identify problems in the preparation and firing of the raw materials for improved production of the clinker. Today, most microscopy uses polished sections of clinker and reflected light, and quantitative methods include the point-count analysis, as well as image processing and analysis. The development of certified clinker reference materials have facilitated the development of the first standard test methods for clinker microscopy and X-ray powder diffraction. The application of the scanning electron microscope (SEM) allows analysis of the fine-grained, multi-phase particles of hydraulic cements and pozzolans, expanded our view into their mineralogical and textural characterization. Modeling the hydration process has developed to the point where selected properties of cement performance may be predicted from a well-characterized cement through microscopy. Cement phase mineralogy and textural characteristics, captured through SEM imaging, and particle shape characteristics quantified through X-ray tomography has allowed the generation of 3D virtual cement particles that retain the phase and textural attributes, providing realistic inputs to cement hydration models.
C1 NIST, Engn Lab, Gaithersburg, MD 20899 USA.
RP Stutzman, PE (reprint author), NIST, Engn Lab, Gaithersburg, MD 20899 USA.
EM Stutz@nist.gov
NR 45
TC 2
Z9 2
U1 4
U2 11
PU MINERALOGICAL SOC AMER
PI CHANTILLY
PA 3635 CONCORDE PKWY STE 500, CHANTILLY, VA 20151-1125 USA
SN 1529-6466
BN 978-0-939950-88-1
J9 REV MINERAL GEOCHEM
JI Rev. Mineral. Geochem.
PY 2012
VL 74
BP 101
EP 145
DI 10.2138/rmg.2012.74.3
PG 45
WC Construction & Building Technology; Geochemistry & Geophysics; Materials
Science, Multidisciplinary; Mineralogy
SC Construction & Building Technology; Geochemistry & Geophysics; Materials
Science; Mineralogy
GA BDY09
UT WOS:000315604700003
ER
PT S
AU Luukanen, A
Leivo, MM
Rautiainen, A
Gronholm, M
Toivanen, H
Gronberg, L
Helisto, P
Mayra, A
Aikio, M
Grossman, EN
AF Luukanen, A.
Leivo, M. M.
Rautiainen, A.
Gronholm, M.
Toivanen, H. .
Gronberg, L.
Helisto, P.
Mayra, A.
Aikio, M.
Grossman, E. N.
GP IOP
TI Applications of superconducting bolometers in security imaging
SO 26TH INTERNATIONAL CONFERENCE ON LOW TEMPERATURE PHYSICS (LT26), PTS 1-5
SE Journal of Physics Conference Series
LA English
DT Proceedings Paper
CT 26th International Conference on Low Temperature Physics (LT)
CY AUG 10-17, 2011
CL Beijing, PEOPLES R CHINA
ID MICROBOLOMETER; NOISE
AB Millimeter-wave (MMW) imaging systems are currently undergoing deployment World-wide for airport security screening applications. Security screening through MMW imaging is facilitated by the relatively good transmission of these wavelengths through common clothing materials. Given the long wavelength of operation (frequencies between 20 GHz to similar to 100 GHz, corresponding to wavelengths between 1.5 cm and 3 mm), existing systems are suited for close-range imaging only due to substantial diffraction effects associated with practical aperture diameters. The present and arising security challenges call for systems that are capable of imaging concealed threat items at stand-off ranges beyond 5 meters at near video frame rates, requiring substantial increase in operating frequency in order to achieve useful spatial resolution. The construction of such imaging systems operating at several hundred GHz has been hindered by the lack of submm-wave low-noise amplifiers. In this paper we summarize our efforts in developing a submm-wave video camera which utilizes cryogenic antenna-coupled microbolometers as detectors. Whilst superconducting detectors impose the use of a cryogenic system, we argue that the resulting back-end complexity increase is a favorable trade-off compared to complex and expensive room temperature submm-wave LNAs both in performance and system cost.
C1 [Luukanen, A.; Leivo, M. M.; Rautiainen, A.; Gronholm, M.; Toivanen, H. .; Gronberg, L.; Helisto, P.; Mayra, A.; Aikio, M.] VTT Tech Res Ctr Finland, Espoo, Finland.
[Grossman, E. N.] Natl Inst Stand & Technol, Boulder, CO 80301 USA.
RP Luukanen, A (reprint author), VTT Tech Res Ctr Finland, Espoo, Finland.
EM arttu.luukanen@vtt.fi
FU Finnish Funding Agency [40246/10]; European Space Agency
[22905/09/NL/JD]
FX The authors acknowledge the support of EU FP7 security research project
"Integrated Mobile Security Kit", TEKES, the Finnish Funding Agency for
Technology and Innovation (funding decision 40246/10), and the European
Space Agency (Contract No. 22905/09/NL/JD).
NR 18
TC 0
Z9 0
U1 0
U2 5
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 1742-6588
J9 J PHYS CONF SER
PY 2012
VL 400
AR UNSP 052018
DI 10.1088/1742-6596/400/5/052018
PG 10
WC Physics, Applied; Physics, Multidisciplinary; Physics, Condensed Matter
SC Physics
GA BDU76
UT WOS:000314977100457
ER
PT J
AU Pozo, R
AF Pozo, Roldan
BE Yetongnon, K
Chbeir, R
Dipanda, A
Gallo, L
TI Efficient Q-matrix computation for the visualization of complex networks
SO 8TH INTERNATIONAL CONFERENCE ON SIGNAL IMAGE TECHNOLOGY & INTERNET BASED
SYSTEMS (SITIS 2012)
LA English
DT Proceedings Paper
CT 8th International Conference on Signal Image Technology and Internet
Based Systems (SITIS)
CY NOV 25-29, 2012
CL Univ Bourgogne, Sorrento, ITALY
SP IEEE Comp Soc, INCAR
HO Univ Bourgogne
AB The Q-matrix representation of a large network graph is a transformation yielding meaningful visualizations which can reveal internal structure, help classify networks according to their application area, and in some cases distinguish and identify real networks from synthetically generated data. However, the issue remains whether computing the Q-matrix is prohibitively expensive for problem sizes encountered in practice. Given an undirected network graph, we describe an efficient near-linear time algorithm for computing its Q-matrix. Besides providing theoretical bounds, we present experimental results showing that application networks with millions of edges and vertices can be processed in seconds on desktop computers.
C1 NIST, Gaithersburg, MD 20899 USA.
RP Pozo, R (reprint author), NIST, Gaithersburg, MD 20899 USA.
EM pozo@nist.gov
NR 13
TC 1
Z9 1
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-0-7695-4911-8
PY 2012
BP 762
EP 767
DI 10.1109/SITIS.2012.115
PG 6
WC Engineering, Electrical & Electronic
SC Engineering
GA BDW60
UT WOS:000315360300104
ER
PT S
AU Ates, S
Sapienza, L
Davano, M
Badolato, A
Srinivasan, K
AF Ates, Serkan
Sapienza, Luca
Davano, Marcelo
Badolato, Antonio
Srinivasan, Kartik
GP IEEE
TI Bright single photon emission from a quantum dot in a circular
dielectric grating
SO 2012 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO)
SE Conference on Lasers and Electro-Optics
LA English
DT Proceedings Paper
CT Conference on Lasers and Electro-Optics (CLEO)
CY MAY 06-11, 2012
CL San Jose, CA
AB We demonstrate a single photon source based on a single quantumdot in a circular grating microcavity and measure a collection efficiency of 10%. Tradeoffs between suppressed multi-photon probability and Purcell enhancement are investigated. (C) 2011 Optical Society of America
C1 [Ates, Serkan; Sapienza, Luca; Davano, Marcelo; Srinivasan, Kartik] Natl Inst Stand & Technol, Ctr Nanoscale Sci & Technol, Gaithersburg, MD 20899 USA.
RP Ates, S (reprint author), Natl Inst Stand & Technol, Ctr Nanoscale Sci & Technol, Gaithersburg, MD 20899 USA.
EM serkan.ates@nist.gov
RI Ates, Serkan/M-6083-2014
NR 7
TC 0
Z9 0
U1 0
U2 3
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2160-9020
BN 978-1-55752-933-6
J9 CONF LASER ELECTR
PY 2012
PG 2
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BCK05
UT WOS:000310362402379
ER
PT S
AU Blakestad, RB
Ospelkaus, C
VanDevender, AP
Wesenberg, JH
Biercuk, MJ
Leibfried, D
Wineland, DJ
AF Blakestad, R. B.
Ospelkaus, C.
VanDevender, A. P.
Wesenberg, J. H.
Biercuk, M. J.
Leibfried, D.
Wineland, D. J.
GP IEEE
TI Transport of Trapped-ion Qubits in a Scalable Architecture
SO 2012 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO)
SE Conference on Lasers and Electro-Optics
LA English
DT Proceedings Paper
CT Conference on Lasers and Electro-Optics (CLEO)
CY MAY 06-11, 2012
CL San Jose, CA
ID QUANTUM COMPUTER; ATOMIC IONS; MANIPULATION; STATES; ARRAY
AB Trapped-ion qubits can be transported through a two-dimensional trap array, while maintaining the ions near the motional ground-state. This helps demonstrate the viability of large-scale quantum processor architectures using trapped-ions. (C) 2008 Optical Society of America
C1 [Blakestad, R. B.; Ospelkaus, C.; VanDevender, A. P.; Wesenberg, J. H.; Biercuk, M. J.; Leibfried, D.; Wineland, D. J.] NIST, Boulder, CO 80305 USA.
RP Blakestad, RB (reprint author), NIST, 325 Broadway, Boulder, CO 80305 USA.
EM blakestad@gmail.com
RI Ospelkaus, Christian/C-3612-2009; Biercuk, Michael/B-4768-2010
OI Ospelkaus, Christian/0000-0002-4170-2936;
NR 16
TC 0
Z9 0
U1 0
U2 2
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2160-9020
BN 978-1-55752-933-6
J9 CONF LASER ELECTR
PY 2012
PG 2
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BCK05
UT WOS:000310362402236
ER
PT S
AU Brida, G
Ciavarella, L
Dagrada, M
Degiovanni, IP
Genovese, M
Migdall, A
Mingolla, MG
Paris, MGA
Piacentini, F
Polyakov, SV
AF Brida, G.
Ciavarella, L.
Dagrada, M.
Degiovanni, I. P.
Genovese, M.
Migdall, A.
Mingolla, M. G.
Paris, M. G. A.
Piacentini, F.
polyakov, S. V.
GP IEEE
TI Entanglement-assisted calibration of a photon-number-resolving detector
SO 2012 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO)
SE Conference on Lasers and Electro-Optics
LA English
DT Proceedings Paper
CT Conference on Lasers and Electro-Optics (CLEO)
CY MAY 06-11, 2012
CL San Jose, CA
ID RECONSTRUCTION
AB Here we present the first experimental entanglement-assisted quantum characterization of an unknown photon-number-resolvingdetector, i.e. the reconstruction of its positive operator-valued measure (POVM), obtained by exploiting the quantum correlations of at win-beam generated by parametric down conversion (PDC). (C) 2011 Optical Society of America
C1 [Brida, G.; Ciavarella, L.; Dagrada, M.; Degiovanni, I. P.; Genovese, M.; Mingolla, M. G.; Paris, M. G. A.; Piacentini, F.] INRIM, Str Cacce 91, I-10135 Turin, Italy.
[Paris, M. G. A.] Univ Milan, Dipartimento Fis, I-20133 Milan, Italy.
[Paris, M. G. A.] Udr Milano, CNISM, I-20133 Milan, Italy.
[Migdall, A.; polyakov, S. V.] Natl Inst Stand & Technol, Gaithersburg, MD 20899 USA.
[Migdall, A.; polyakov, S. V.] Joint Quantum Inst, Gaithersburg, MD 20899 USA.
RP Brida, G (reprint author), INRIM, Str Cacce 91, I-10135 Turin, Italy.
EM f.piacentini@inrim.it
NR 9
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2160-9020
BN 978-1-55752-933-6
J9 CONF LASER ELECTR
PY 2012
PG 2
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BCK05
UT WOS:000310362403186
ER
PT S
AU Davanco, M
Thurston, B
Srinivasan, K
AF Davanco, Marcelo
Thurston, Bryce
Srinivasan, Kartik
GP IEEE
TI Towards quantum frequency conversion via non-degenerate four-wave mixing
in nanophotonic waveguides
SO 2012 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO)
SE Conference on Lasers and Electro-Optics
LA English
DT Proceedings Paper
CT Conference on Lasers and Electro-Optics (CLEO)
CY MAY 06-11, 2012
CL San Jose, CA
ID DOT
AB Low-noise wavelength conversion through non-degenerate four-wave-mixing Bragg scattering in SiNx waveguides is demonstrated. Two 1550 nm pumps are used to achieve tunable conversion of a 980 nm signal over a range of 10 nm. (C) 2011 Optical Society of America
C1 [Davanco, Marcelo; Thurston, Bryce; Srinivasan, Kartik] NIST, Ctr Nanoscale Sci & Technol, Gaithersburg, MD 20899 USA.
RP Davanco, M (reprint author), NIST, Ctr Nanoscale Sci & Technol, Gaithersburg, MD 20899 USA.
EM mdavanco@nist.gov
NR 8
TC 0
Z9 0
U1 0
U2 2
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2160-9020
BN 978-1-55752-933-6
J9 CONF LASER ELECTR
PY 2012
PG 2
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BCK05
UT WOS:000310362401049
ER
PT S
AU Del'Haye, P
Papp, S
Diddams, S
AF Del'Haye, Pascal
Papp, Scott
Diddams, Scott
GP IEEE
TI An All-Optical Resonator Stabilization Scheme with Laser Machined SiO2
Microresonators
SO 2012 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO)
SE Conference on Lasers and Electro-Optics
LA English
DT Proceedings Paper
CT Conference on Lasers and Electro-Optics (CLEO)
CY MAY 06-11, 2012
CL San Jose, CA
ID FREQUENCY; GENERATION; COMBS
AB We present a novel fabrication method for ultra-high-Q fused silica microresonators using CO2 laser machining. These resonators are used to investigate an all-optical stabilization scheme of their mode spectrum with a frequency doubled control laser.
C1 [Del'Haye, Pascal; Papp, Scott; Diddams, Scott] Natl Inst Stand & Technol, Boulder, CO 80305 USA.
RP Del'Haye, P (reprint author), Natl Inst Stand & Technol, 325 Broadway, Boulder, CO 80305 USA.
RI Diddams, Scott/L-2819-2013; Del'Haye, Pascal/G-2588-2016
OI Del'Haye, Pascal/0000-0002-6517-6942
NR 14
TC 0
Z9 0
U1 0
U2 5
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2160-9020
BN 978-1-55752-933-6
J9 CONF LASER ELECTR
PY 2012
PG 2
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BCK05
UT WOS:000310362401017
ER
PT S
AU Ferdous, F
Miao, HX
Leaird, DE
Srinivasan, K
Chen, L
Aksyuk, V
Weiner, AM
AF Ferdous, Fahmida
Miao, Houxun
Leaird, Daniel E.
Srinivasan, Kartik
Chen, Lei
Aksyuk, Vladimir
Weiner, A. M.
GP IEEE
TI Time Domain Study of On-Chip Microresonator Frequency Combs
SO 2012 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO)
SE Conference on Lasers and Electro-Optics
LA English
DT Proceedings Paper
CT Conference on Lasers and Electro-Optics (CLEO)
CY MAY 06-11, 2012
CL San Jose, CA
ID GENERATION
AB We report time domain properties of microresonator combs formed with the initial sidebands spaced by multiple free spectral ranges that then fill in to give combs with single free-spectral-range spacing. (C) 2012 Optical Society of America
C1 [Ferdous, Fahmida; Leaird, Daniel E.; Weiner, A. M.] Purdue Univ, Sch Elect & Comp Engn, 465 NW Ave, W Lafayette, IN 47907 USA.
[Miao, Houxun; Srinivasan, Kartik; Chen, Lei; Aksyuk, Vladimir] Natl Inst Stand & Technol, Ctr Nanoscale Sci & Technol, Gaithersburg, MD 20899 USA.
[Miao, Houxun] Univ Maryland, Nanoctr, College Pk, MD 20742 USA.
[Weiner, A. M.] Purdue Univ, Birck Nanotechnol Ctr, Indiana, PA 47907 USA.
RP Ferdous, F (reprint author), Purdue Univ, Sch Elect & Comp Engn, 465 NW Ave, W Lafayette, IN 47907 USA.
EM fferdous@purdue.edu
NR 6
TC 0
Z9 0
U1 0
U2 2
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2160-9020
BN 978-1-55752-933-6
J9 CONF LASER ELECTR
PY 2012
PG 2
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BCK05
UT WOS:000310362401012
ER
PT S
AU Gerrits, T
Calkins, B
Tomlin, N
Lita, AE
Migdall, A
Mirin, RP
Nam, SW
AF Gerrits, T.
Calkins, B.
Tomlin, N.
Lita, A. E.
Migdall, A.
Mirin, R. P.
Nam, S. W.
GP IEEE
TI Extending Single-Photon Optimized Superconducting Transition Edge
Sensors beyond the single-photon counting regime
SO 2012 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO)
SE Conference on Lasers and Electro-Optics
LA English
DT Proceedings Paper
CT Conference on Lasers and Electro-Optics (CLEO)
CY MAY 06-11, 2012
CL San Jose, CA
AB We illuminate a photon-number-resolving transition edge sensor with strong pulses of light containing up to 6.7 million photons (0.85 pJ per pulse). These bright pulses heat the sensor far beyond its transition edge into the normal resistance regime. We show that the sensor operates from the single-photon-counting regime to picowatt levels of light and that the detection noise is below shot-noise for up to 1000 photons.
C1 [Gerrits, T.; Calkins, B.; Tomlin, N.; Lita, A. E.; Mirin, R. P.; Nam, S. W.] NIST, Boulder, CO 80305 USA.
[Migdall, A.] Natl Inst Stand & Technol, Gaithersburg, MD 20899 USA.
RP Gerrits, T (reprint author), NIST, Boulder, CO 80305 USA.
EM gerrits@boulder.nist.gov
NR 1
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2160-9020
BN 978-1-55752-933-6
J9 CONF LASER ELECTR
PY 2012
PG 2
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BCK05
UT WOS:000310362403247
ER
PT S
AU Gerrits, T
Thomas-Peter, N
Gates, JC
Lita, AE
Metcalf, BJ
Calkins, B
Tomlin, NA
Fox, AE
Linares, AL
Spring, JB
Langford, NK
Mirin, RP
Smith, PGR
Walmsley, IA
Nam, SW
AF Gerrits, T.
Thomas-Peter, N.
Gates, J. C.
Lita, A. E.
Metcalf, B. J.
Calkins, B.
Tomlin, N. A.
Fox, A. E.
Linares, A. Lamas
Spring, J. B.
Langford, N. K.
Mirin, R. P.
Smith, P. G. R.
Walmsley, I. A.
Nam, S. W.
GP IEEE
TI On-chip, photon-number-resolving, telecom-band detectors for scalable
photonic information processing
SO 2012 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO)
SE Conference on Lasers and Electro-Optics
LA English
DT Proceedings Paper
CT Conference on Lasers and Electro-Optics (CLEO)
CY MAY 06-11, 2012
CL San Jose, CA
AB We demonstrate an integrated photon-number resolving detector, operating in the telecom band at 1550 nm, employing an evanescently coupled design that allows the detector to be placed at arbitrary locations within a planar optical circuit. Up to 5 photons are resolved in the guided optical mode via absorption from the evanescent field into a tungsten transition-edge sensor. The detection efficiency of the absorbing tungsten region is 7.2 %.
C1 [Gerrits, T.; Lita, A. E.; Calkins, B.; Tomlin, N. A.; Fox, A. E.; Linares, A. Lamas; Mirin, R. P.] NIST, Boulder, CO 80305 USA.
[Thomas-Peter, N.; Metcalf, B. J.; Spring, J. B.; Langford, N. K.; Walmsley, I. A.] Univ Oxford, Clarendon Lab, Oxford OX1 3PU, England.
[Gates, J. C.; Smith, P. G. R.; Nam, S. W.] Univ Southampton, Optoelect Res Ctr, Southampton SO17 1BJ, Hants, England.
RP Gerrits, T (reprint author), NIST, Boulder, CO 80305 USA.
EM gerrits@boulder.nist.gov
NR 1
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2160-9020
BN 978-1-55752-933-6
J9 CONF LASER ELECTR
PY 2012
PG 2
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BCK05
UT WOS:000310362403183
ER
PT S
AU Giorgetta, FR
Baumann, E
Knabe, K
Coddington, I
Newbury, NR
AF Giorgetta, F. R.
Baumann, E.
Knabe, K.
Coddington, I.
Newbury, N. R.
GP IEEE
TI High-resolution Ranging of a Diffuse Target at Sub-Millisecond Intervals
with a Calibrated FMCW Lidar
SO 2012 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO)
SE Conference on Lasers and Electro-Optics
LA English
DT Proceedings Paper
CT Conference on Lasers and Electro-Optics (CLEO)
CY MAY 06-11, 2012
CL San Jose, CA
ID ABSOLUTE DISTANCE MEASUREMENTS; LASER; PULSES
AB We demonstrate a FMCW Lidar with a frequency-calibrated laser modulated over 1 THz at similar to 1 kHz modulation frequency. Range to a diffuse target is measured at 0.5 ms intervals with 150 mm resolution and similar to 1 mm precision. Work of the U.S. government, not subject to copyright.
C1 [Giorgetta, F. R.; Baumann, E.; Knabe, K.; Coddington, I.; Newbury, N. R.] NIST, Boulder, CO 80305 USA.
RP Giorgetta, FR (reprint author), NIST, 325 Broadway, Boulder, CO 80305 USA.
EM fabrizio.giorgetta@nist.gov
RI Giorgetta, Fabrizio/O-1730-2014
OI Giorgetta, Fabrizio/0000-0003-2066-3912
NR 13
TC 0
Z9 0
U1 0
U2 5
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2160-9020
BN 978-1-55752-933-6
J9 CONF LASER ELECTR
PY 2012
PG 2
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BCK05
UT WOS:000310362400188
ER
PT S
AU Giorgetta, FR
Swann, WC
Coddington, I
Baumann, E
Deschenes, JD
Sinclair, L
Zolot, AM
Newbury, NR
AF Giorgetta, Fabrizio R.
Swann, William C.
Coddington, Ian
Baumann, Esther
Deschenes, Jean-Daniel
Sinclair, Laura
Zolot, Alexander M.
Newbury, Nathan R.
GP IEEE
TI Two-Way Link for Time Interval Comparison of Optical Clocks over
Free-Space
SO 2012 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO)
SE Conference on Lasers and Electro-Optics
LA English
DT Proceedings Paper
CT Conference on Lasers and Electro-Optics (CLEO)
CY MAY 06-11, 2012
CL San Jose, CA
ID TURBULENT ATMOSPHERE
AB We demonstrate a free-space link for clock comparisons based on the two-way exchange of pulse trains from combs. The residual uncertainty is 5 x 10-(17) in 100 seconds over a 120 m air path, with longer distances possible. Work of the U.S. government, not subject to copyright.
C1 [Giorgetta, Fabrizio R.; Swann, William C.; Coddington, Ian; Baumann, Esther; Sinclair, Laura; Zolot, Alexander M.; Newbury, Nathan R.] NIST, Quantum Elect & Photon Div, 325 Broadway, Boulder, CO 80305 USA.
[Deschenes, Jean-Daniel] Univ Laval, Ctr opt photon laser, Quebec City, PQ G1K 7P4, Canada.
RP Giorgetta, FR (reprint author), NIST, Quantum Elect & Photon Div, 325 Broadway, Boulder, CO 80305 USA.
EM fabrizio@nist.gov
RI Zolot, Alexander/C-7450-2013; Giorgetta, Fabrizio/O-1730-2014
OI Giorgetta, Fabrizio/0000-0003-2066-3912
NR 11
TC 0
Z9 0
U1 0
U2 2
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2160-9020
BN 978-1-55752-933-6
J9 CONF LASER ELECTR
PY 2012
PG 2
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BCK05
UT WOS:000310362401123
ER
PT S
AU Glasser, RT
Vogl, U
Lett, PD
AF Glasser, Ryan T.
Vogl, Ulrich
Lett, Paul D.
GP IEEE
TI Generation of pulses with negative group velocities via four-wave mixing
in Rb-85
SO 2012 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO)
SE Conference on Lasers and Electro-Optics
LA English
DT Proceedings Paper
CT Conference on Lasers and Electro-Optics (CLEO)
CY MAY 06-11, 2012
CL San Jose, CA
AB We generate pairs of superluminal pulses via four-wave mixing. A relative pulse peak advancement of the seed pulses of > 50% is demonstrated. Generated conjugate pulses can propagate with negative group velocities of up to v(g) = -1/880c. (C) 2011 Optical Society of America
C1 [Glasser, Ryan T.] NIST, Gaithersburg, MD 20899 USA.
Univ Maryland, Joint Quantum Inst, Gaithersburg, MD 20899 USA.
RP Glasser, RT (reprint author), NIST, Gaithersburg, MD 20899 USA.
EM rglasser@nist.gov
RI Vogl, Ulrich/G-4624-2014
OI Vogl, Ulrich/0000-0003-2399-2797
NR 4
TC 0
Z9 0
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2160-9020
BN 978-1-55752-933-6
J9 CONF LASER ELECTR
PY 2012
PG 2
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BCK05
UT WOS:000310362403281
ER
PT S
AU Glorieux, Q
Clark, J
Marino, AM
Lett, PD
AF Glorieux, Q.
Clark, J.
Marino, A. M.
Lett, P. D.
GP IEEE
TI Atomic diffusion effects on the coherent storage of an image using a
gradient echo memory in a warm atomic vapor
SO 2012 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO)
SE Conference on Lasers and Electro-Optics
LA English
DT Proceedings Paper
CT Conference on Lasers and Electro-Optics (CLEO)
CY MAY 06-11, 2012
CL San Jose, CA
AB We experimentally study the effect of atomic diffusion on the quality of an image stored in the long-lived ground state coherence of a warm atomic ensemble using a gradient echo memory. (C) 2011 Optical Society of America
C1 [Glorieux, Q.] Natl Inst Stand & Technol, Joint Quantum Inst, Gaithersburg, MD 20899 USA.
RP Glorieux, Q (reprint author), Natl Inst Stand & Technol, Joint Quantum Inst, Gaithersburg, MD 20899 USA.
EM quentin.glorieux@nist.gov
RI Glorieux, Quentin/K-4875-2012
OI Glorieux, Quentin/0000-0003-0903-0233
NR 6
TC 0
Z9 0
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2160-9020
BN 978-1-55752-933-6
J9 CONF LASER ELECTR
PY 2012
PG 2
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BCK05
UT WOS:000310362402059
ER
PT S
AU Hartl, I
Lee, CC
Mohr, C
Bethge, J
Suzuki, S
Fermann, ME
Schibli, TR
AF Hartl, I.
Lee, C. -C.
Mohr, C.
Bethge, J.
Suzuki, S.
Fermann, M. E.
Schibli, T. R.
GP IEEE
TI Ultra-low phase-noise Tm-fiber frequency comb with an intra-cavity
graphene electro-optic modulator
SO 2012 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO)
SE Conference on Lasers and Electro-Optics
LA English
DT Proceedings Paper
CT Conference on Lasers and Electro-Optics (CLEO)
CY MAY 06-11, 2012
CL San Jose, CA
AB An intracavity, sub-micrometer thin graphene electro-optic modulator enables orthogonal offset-frequency control much beyond the stimulated lifetime of the gain medium. We demonstrate this new locking scheme in a Tm:fiber comb with record-low residual phase noise.
C1 [Hartl, I.; Mohr, C.; Bethge, J.; Fermann, M. E.] IMRA Amer Inc, 1044 Woodridge Ave, Ann Arbor, MI 48105 USA.
[Lee, C. -C.; Suzuki, S.; Schibli, T. R.] Univ Colorado, Dept Phys, Boulder, CO 80309 USA.
[Schibli, T. R.] Univ Colorado, Dept Elect Comp & Energy Engn, Boulder, CO 80309 USA.
[Schibli, T. R.] Univ Colorado, Boulder, CO 80309 USA.
[Schibli, T. R.] JILA, Natl Inst Stand & Technol, Boulder, CO 80309 USA.
RP Hartl, I (reprint author), IMRA Amer Inc, 1044 Woodridge Ave, Ann Arbor, MI 48105 USA.
EM ihartl@imra.com
FU NSF [ECS-0335765]; Defense Advanced Research Projects Agency (DARPA)
[YFA N66001-11-1-4156]
FX We gratefully acknowledge partial funding from NSF under Grant No.
ECS-0335765 and by the Defense Advanced Research Projects Agency
(DARPA), Contract No. YFA N66001-11-1-4156.
NR 4
TC 0
Z9 0
U1 0
U2 6
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2160-9020
BN 978-1-55752-933-6
J9 CONF LASER ELECTR
PY 2012
PG 2
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BCK05
UT WOS:000310362401002
ER
PT S
AU Kirchner, M
Niedringhaus, A
Durfee, C
Raymondson, D
Wise, F
Nugent-Glandorf, L
Kapteyn, H
Murnane, M
Backus, S
AF Kirchner, Matt
Niedringhaus, Andrew
Durfee, Charles
Raymondson, Daisy
Wise, Frank
Nugent-Glandorf, Lora
Kapteyn, Henry
Murnane, Margaret
Backus, Sterling
GP IEEE
TI Ultrafast Optical Parametric Oscillator Pumped by an All Normal
Dispersion (ANDi) Yb:Fiber Oscillator
SO 2012 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO)
SE Conference on Lasers and Electro-Optics
LA English
DT Proceedings Paper
CT Conference on Lasers and Electro-Optics (CLEO)
CY MAY 06-11, 2012
CL San Jose, CA
ID FIBER LASER; MU-M
AB We describe a 13 nJ, 100 fs, 60 MHz Yb:Fiber ANDi oscillator that pumps a MgO2:PPLN optical parametric oscillator (OPO), producing up to 300 mW (signal+idler) of total output, and overall efficiency of 37%.
C1 [Kirchner, Matt; Raymondson, Daisy; Backus, Sterling] KMLabs Inc, Dept Res & Dev, 1855 S 57th Ct, Boulder, CO 80301 USA.
[Niedringhaus, Andrew; Durfee, Charles] Colorado Sch Mines, Dept Phys, Golden, CO 80401 USA.
[Wise, Frank] Cornell Univ, Dept Appl Phys, Ithaca, NY 14850 USA.
[Backus, Sterling] Colorado State Univ, Dept Elect & Comp Engn, Ft Collins, CO 80523 USA.
[Nugent-Glandorf, Lora] Natl Inst Standards & Technol, Boulder, CO 80305 USA.
[Kapteyn, Henry; Murnane, Margaret] Univ Colorado, JILA, Boulder, CO 80309 USA.
RP Backus, S (reprint author), KMLabs Inc, Dept Res & Dev, 1855 S 57th Ct, Boulder, CO 80301 USA.
EM sbackus@kmlabs.com
RI Kapteyn, Henry/H-6559-2011; Backus, Sterling/C-2506-2008
OI Kapteyn, Henry/0000-0001-8386-6317;
NR 4
TC 0
Z9 0
U1 0
U2 4
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2160-9020
BN 978-1-55752-933-6
J9 CONF LASER ELECTR
PY 2012
PG 2
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BCK05
UT WOS:000310362400242
ER
PT S
AU Knabe, K
Giorgetta, FR
Armacost, CM
Radunsky, MB
Crivello, S
Day, T
Williams, PA
Newbury, NR
AF Knabe, Kevin
Giorgetta, Fabrizio R.
Armacost, Chris M.
Radunsky, Michael B.
Crivello, Sam
Day, Timothy
Williams, Paul A.
Newbury, Nathan R.
GP IEEE
TI Comb-assisted Swept Laser Spectroscopy with a Mode-Hop-Free Tunable
External Cavity QCL
SO 2012 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO)
SE Conference on Lasers and Electro-Optics
LA English
DT Proceedings Paper
CT Conference on Lasers and Electro-Optics (CLEO)
CY MAY 06-11, 2012
CL San Jose, CA
ID QUANTUM-CASCADE-LASER; FREQUENCY-COMB
AB We demonstrate sub-MHz spectral resolution of N2O absorption spectra acquired with a swept external-cavity quantum cascade laser (QCL) over 0.87 THz. The QCL frequency is monitored by sum-frequency generation with an optical fiber frequency comb.
C1 [Knabe, Kevin; Giorgetta, Fabrizio R.; Williams, Paul A.; Newbury, Nathan R.] NIST, Quantum Elect & Photon Div, 325 Broadway, Boulder, CO 80305 USA.
[Armacost, Chris M.; Radunsky, Michael B.; Crivello, Sam; Day, Timothy] Daylight Solut, San Diego, CA 92128 USA.
RP Knabe, K (reprint author), NIST, Quantum Elect & Photon Div, 325 Broadway, Boulder, CO 80305 USA.
EM kevin.knabe@nist.gov
FU Dept. of Homeland Security
FX This contribution by NIST (U.S. government agency), partially funded by
the Dept. of Homeland Security, is not subject to copyright in the U.S.
NR 8
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2160-9020
BN 978-1-55752-933-6
J9 CONF LASER ELECTR
PY 2012
PG 2
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BCK05
UT WOS:000310362401317
ER
PT S
AU Kuo, PS
Solomon, GS
AF Kuo, Paulina S.
Solomon, Glenn S.
GP IEEE
TI Observation of (4)over-bar-quasi-phasematched second-harmonic generation
in a GaAs microdisk cavity
SO 2012 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO)
SE Conference on Lasers and Electro-Optics
LA English
DT Proceedings Paper
CT Conference on Lasers and Electro-Optics (CLEO)
CY MAY 06-11, 2012
CL San Jose, CA
AB We observed singly-resonant, (4) over bar -quasi-phasematched, second-harmonic generation in a GaAs microdisk cavity. By pumping at the 1985.4-nm fundamental resonance, we observed (5.2 +/- 0.4)x10(-5)/mW conversion efficiency.
C1 [Kuo, Paulina S.; Solomon, Glenn S.] Univ Maryland, NIST, Joint Quantum Inst, Gaithersburg, MD 20899 USA.
RP Kuo, PS (reprint author), Univ Maryland, NIST, Joint Quantum Inst, Gaithersburg, MD 20899 USA.
EM pkuo@nist.gov
NR 6
TC 0
Z9 0
U1 0
U2 2
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2160-9020
BN 978-1-55752-933-6
J9 CONF LASER ELECTR
PY 2012
PG 2
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BCK05
UT WOS:000310362401372
ER
PT S
AU Lamas-Linares, A
Gerrits, T
Tomlin, NA
Lita, AE
Calkins, B
Beyer, J
Mirin, RP
Nam, SW
AF Lamas-Linares, Antia
Gerrits, Thomas
Tomlin, Nathan A.
Lita, Adriana E.
Calkins, Brice
Beyer, Joern
Mirin, Richard P.
Nam, Sae Woo
GP IEEE
TI Transition edge sensors with low timing jitter at 1550 nm
SO 2012 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO)
SE Conference on Lasers and Electro-Optics
LA English
DT Proceedings Paper
CT Conference on Lasers and Electro-Optics (CLEO)
CY MAY 06-11, 2012
CL San Jose, CA
ID EFFICIENCY
AB Transition edge sensors have demonstrated near unity detection efficiency of single photons and photon number resolving ability over a wide wavelength range (approximate to 700-1600 nm). They are also known to be slow, with timing jitter values in the approximate to 100 ns range, and the best current values in the approximate to 20 ns range. We report measured jitter times below 5 ns for a tungsten TES. This is particularly relevant for experiments clocked from an 80MHz Ti:Sa laser. (C) 2011 Optical Society of America
C1 [Lamas-Linares, Antia; Gerrits, Thomas; Tomlin, Nathan A.; Lita, Adriana E.; Calkins, Brice; Mirin, Richard P.; Nam, Sae Woo] NIST, 325 Broadway, Boulder, CO 80305 USA.
[Beyer, Joern] Phys Tech Bundesanstalt, Berlin, Germany.
RP Lamas-Linares, A (reprint author), NIST, 325 Broadway, Boulder, CO 80305 USA.
EM antia.lamas-linares@nist.gov
NR 5
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2160-9020
BN 978-1-55752-933-6
J9 CONF LASER ELECTR
PY 2012
PG 2
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BCK05
UT WOS:000310362403246
ER
PT S
AU Li, H
Moody, G
Singh, R
Akimov, IA
Yakovlev, DR
Bayer, M
Karczewski, G
Wojtowicz, T
Cundiff, ST
AF Li, H.
Moody, G.
Singh, R.
Akimov, I. A.
Yakovlev, D. R.
Bayer, M.
Karczewski, G.
Wojtowicz, T.
Cundiff, S. T.
GP IEEE
TI Evidence of Exciton-Trion Coherent Interactions in a CdTe/CdMgTe Quantum
Well
SO 2012 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO)
SE Conference on Lasers and Electro-Optics
LA English
DT Proceedings Paper
CT Conference on Lasers and Electro-Optics (CLEO)
CY MAY 06-11, 2012
CL San Jose, CA
AB Many-body interactions in a doped CdTe/CdMgTe quantum well are investigated using optical 2D Fourier-transform spectroscopy. The nature of coherent exciton-trion correlations is examined by analyzing lineshapes in the 2D spectra.
C1 [Li, H.; Moody, G.; Singh, R.; Cundiff, S. T.] Natl Inst Stand & Technol, Joint Inst Lab Astrophys, Boulder, CO 80309 USA.
[Li, H.; Moody, G.; Singh, R.; Cundiff, S. T.] Univ Colorado, Boulder, CO 80309 USA.
[Li, H.; Moody, G.; Cundiff, S. T.] Univ Colorado, Dept Phys, Boulder, CO 80309 USA.
[Akimov, I. A.; Yakovlev, D. R.] Tech Univ Dortmund, Expt Phys II, D-44221 Dortmund, Germany.
[Akimov, I. A.; Yakovlev, D. R.] Russian Acad Sci, AF Ioffe Phys Tech Inst, St Petersburg 194021, Russia.
[Karczewski, G.; Wojtowicz, T.] Polish Acad Sci, Inst Phys, PL-02668 Warsaw, Poland.
RP Li, H (reprint author), Natl Inst Stand & Technol, Joint Inst Lab Astrophys, Boulder, CO 80309 USA.
EM cundiff@jila.colorado.edu
RI Cundiff, Steven/B-4974-2009; Moody, Galan/J-5811-2014
OI Cundiff, Steven/0000-0002-7119-5197; Moody, Galan/0000-0001-7263-1483
NR 5
TC 0
Z9 0
U1 0
U2 2
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2160-9020
BN 978-1-55752-933-6
J9 CONF LASER ELECTR
PY 2012
PG 2
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BCK05
UT WOS:000310362403053
ER
PT S
AU Miao, HX
Srinivasan, K
Aksyuk, V
AF Miao, Houxun
Srinivasan, Kartik
Aksyuk, Vladimir
GP IEEE
TI A MEMS Controlled Cavity Optomechanical Sensing System
SO 2012 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO)
SE Conference on Lasers and Electro-Optics
LA English
DT Proceedings Paper
CT Conference on Lasers and Electro-Optics (CLEO)
CY MAY 06-11, 2012
CL San Jose, CA
AB We report a fully-integrated MEMS sensing platform enabled by cavity optomechanics. We demonstrate 4.6 fm/Hz(1/2) displacement sensitivity for sub-mu W input power, electrostatically-tunable readout gain, and feedback damping of mechanical response by a factor of >1000. (C) 2012 Optical Society of America
C1 [Miao, Houxun; Srinivasan, Kartik; Aksyuk, Vladimir] NIST, Ctr Nanoscale Sci & Technol, Gaithersburg, MD 20899 USA.
RP Miao, HX (reprint author), NIST, Ctr Nanoscale Sci & Technol, 100 Bur Dr, Gaithersburg, MD 20899 USA.
EM hmiao@nist.gov
NR 2
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2160-9020
BN 978-1-55752-933-6
J9 CONF LASER ELECTR
PY 2012
PG 2
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BCK05
UT WOS:000310362400189
ER
PT S
AU Michaels, CA
Yoo, HW
Jung, HT
Richter, LJ
AF Michaels, C. A.
Yoo, H. W.
Jung, H. T.
Richter, L. J.
GP IEEE
TI Surface Plasmon Polariton Raman Microscopy
SO 2012 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO)
SE Conference on Lasers and Electro-Optics
LA English
DT Proceedings Paper
CT Conference on Lasers and Electro-Optics (CLEO)
CY MAY 06-11, 2012
CL San Jose, CA
ID SCATTERING
AB We report surface plasmon polariton (SPP) mediated Raman microscopy on dielectric films in contact with a Ag layer at 785 nm with spatial resolution approaching the optical diffraction limit and reasonable spectral acquisition times.
C1 [Michaels, C. A.; Richter, L. J.] NIST, Mat Measurement Lab, Gaithersburg, MD 20899 USA.
RP Michaels, CA (reprint author), NIST, Mat Measurement Lab, Gaithersburg, MD 20899 USA.
EM chris.michaels@nist.gov
RI Richter, Lee/N-7730-2016
OI Richter, Lee/0000-0002-9433-3724
NR 5
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2160-9020
BN 978-1-55752-933-6
J9 CONF LASER ELECTR
PY 2012
PG 2
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BCK05
UT WOS:000310362402437
ER
PT S
AU Moody, G
Singh, R
Li, H
Akimov, IA
Bayer, M
Reuter, D
Wieck, AD
Cundiff, ST
AF Moody, G.
Singh, R.
Li, H.
Akimov, I. A.
Bayer, M.
Reuter, D.
Wieck, A. D.
Cundiff, S. T.
GP IEEE
TI Excitons, Biexcitons, and Trions in an InAs Quantum Dot Ensemble Studied
with 2D Fourier-Transform Spectroscopy
SO 2012 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO)
SE Conference on Lasers and Electro-Optics
LA English
DT Proceedings Paper
CT Conference on Lasers and Electro-Optics (CLEO)
CY MAY 06-11, 2012
CL San Jose, CA
AB Multi-particle correlations are investigated in an InAs quantum dot ensemble using 2D Fourier-transform spectroscopy. Signatures of trions and a fifth-order contribution from the biexciton are observed by varying the excitation polarization and density.
C1 [Moody, G.; Singh, R.; Li, H.; Cundiff, S. T.] Natl Inst Stand & Technol, Joint Inst Lab Astrophys, Boulder, CO 80309 USA.
[Moody, G.; Singh, R.; Li, H.; Cundiff, S. T.] Univ Colorado, Boulder, CO 80309 USA.
[Moody, G.; Singh, R.; Cundiff, S. T.] Univ Colorado, Dept Phys, Boulder, CO 80309 USA.
[Akimov, I. A.] Tech Univ Dortmund, Expt Phys II, D-44221 Dortmund, Germany.
[Akimov, I. A.] Russian Acad Sci, AF Ioffe Phys Tech Inst, St Petersburg 194021, Russia.
[Reuter, D.; Wieck, A. D.] Ruhr Univ Bochum, Lehrstuhl Angewandte Festkoerphys, D-44780 Bochum, Germany.
RP Moody, G (reprint author), Natl Inst Stand & Technol, Joint Inst Lab Astrophys, Boulder, CO 80309 USA.
EM cundiff@jila.colorado.edu
RI Cundiff, Steven/B-4974-2009; Moody, Galan/J-5811-2014; Wieck, Andreas
Dirk/C-5129-2009
OI Cundiff, Steven/0000-0002-7119-5197; Moody, Galan/0000-0001-7263-1483;
Wieck, Andreas Dirk/0000-0001-9776-2922
NR 5
TC 0
Z9 0
U1 0
U2 4
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2160-9020
BN 978-1-55752-933-6
J9 CONF LASER ELECTR
PY 2012
PG 2
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BCK05
UT WOS:000310362403052
ER
PT S
AU Polyakov, SV
Flagg, EB
Thomay, T
Migdall, A
Solomon, GS
AF Polyakov, Sergey V.
Flagg, Edward B.
Thomay, Tim
Migdall, Alan
Solomon, Glenn S.
GP IEEE
TI Time-resolved nonclassical photon field characterization
SO 2012 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO)
SE Conference on Lasers and Electro-Optics
LA English
DT Proceedings Paper
CT Conference on Lasers and Electro-Optics (CLEO)
CY MAY 06-11, 2012
CL San Jose, CA
AB We demonstrate a new method to characterize nonclassical states that measures the temporal dependence of their statistical and coherent properties. We extract information about underlying physical processes in an InAs quantum dot in situ. (C) 2011 Optical Society of America
C1 [Polyakov, Sergey V.; Flagg, Edward B.; Thomay, Tim; Migdall, Alan] NIST, Joint Quantum Inst, Gaithersburg, MD 20899 USA.
[Solomon, Glenn S.] Univ Maryland, Gaithersburg, MD 20899 USA.
RP Polyakov, SV (reprint author), NIST, Joint Quantum Inst, Gaithersburg, MD 20899 USA.
RI Flagg, Edward/G-2897-2013
OI Flagg, Edward/0000-0002-8065-4092
NR 1
TC 0
Z9 0
U1 0
U2 2
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2160-9020
BN 978-1-55752-933-6
J9 CONF LASER ELECTR
PY 2012
PG 2
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BCK05
UT WOS:000310362403188
ER
PT S
AU Redding, B
Ge, L
Solomon, GS
Cao, H
AF Redding, B.
Ge, L.
Solomon, G. S.
Cao, H.
GP IEEE
TI Directional waveguide coupling from a wavelength-scale deformed
microdisk
SO 2012 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO)
SE Conference on Lasers and Electro-Optics
LA English
DT Proceedings Paper
CT Conference on Lasers and Electro-Optics (CLEO)
CY MAY 06-11, 2012
CL San Jose, CA
ID LASERS
AB We demonstrate uni-directional evanescent coupling of lasing emission from a deformed microdisk to a waveguide. The clockwise and counter-clockwise propagating ray orbits are spatially separated by wave optics effects, enabling selective coupling.
C1 [Redding, B.; Cao, H.] Yale Univ, Dept Appl Phys, New Haven, CT 06511 USA.
[Ge, L.] Princeton Univ, Dept Elect Engn, Princeton, NJ 08544 USA.
[Solomon, G. S.] NIST, Univ Maryland, Joint Quantun Inst, Gaithersburg, MD 20899 USA.
RP Redding, B (reprint author), Yale Univ, Dept Appl Phys, New Haven, CT 06511 USA.
EM brandon.redding@yale.edu
NR 5
TC 0
Z9 0
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2160-9020
BN 978-1-55752-933-6
J9 CONF LASER ELECTR
PY 2012
PG 2
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BCK05
UT WOS:000310362400286
ER
PT S
AU Ruehl, A
Benko, C
Martin, MJ
Eikema, KSE
Fermann, ME
Hartl, I
Ye, J
AF Ruehl, Axel
Benko, Craig
Martin, Michael J.
Eikema, Kjeld S. E.
Fermann, Martin E.
Hartl, Ingmar
Ye, Jun
GP IEEE
TI Phase Stabilization of a Yb:fiber Frequency Comb via High-Bandwidth
Transducers
SO 2012 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO)
SE Conference on Lasers and Electro-Optics
LA English
DT Proceedings Paper
CT Conference on Lasers and Electro-Optics (CLEO)
CY MAY 06-11, 2012
CL San Jose, CA
AB We report a Yb:fiber frequency comb using an intra-cavity electro-optic modulator and an acousto-optic modulator outside the cavity. The integrated phase noise error was 112mrad for f(0) and 564mrad for an optical lock at 698nm. (C) 2012 Optical Society of America
C1 [Ruehl, Axel; Fermann, Martin E.; Hartl, Ingmar] IMRA Amer Inc, 1044 Woodridge Ave, Ann Arbor, MI 48105 USA.
[Benko, Craig; Martin, Michael J.; Ye, Jun] Univ Colorado, Natl Inst Standards & Technol, JILA, Boulder, CO 80309 USA.
[Ruehl, Axel; Eikema, Kjeld S. E.] Vrije Univ Amsterdam, LaserLaB Amsterdam, NL-081HV Amsterdam, Netherlands.
RP Ruehl, A (reprint author), IMRA Amer Inc, 1044 Woodridge Ave, Ann Arbor, MI 48105 USA.
EM a.ruehl@vu.nl
RI Benko, Craig/L-2678-2015
NR 4
TC 0
Z9 0
U1 0
U2 7
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2160-9020
BN 978-1-55752-933-6
J9 CONF LASER ELECTR
PY 2012
PG 2
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BCK05
UT WOS:000310362401001
ER
PT S
AU Singh, R
Moody, G
Li, H
Akimov, IA
Bayer, M
Reuter, D
Wieck, AD
Cundiff, ST
AF Singh, R.
Moody, G.
Li, H.
Akimov, I. A.
Bayer, M.
Reuter, D.
Wieck, A. D.
Cundiff, S. T.
GP IEEE
TI Coherence of Fine-Structure States of an InAs Quantum Dot Ensemble
Studied with 2D Fourier-Transform Spectroscopy
SO 2012 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO)
SE Conference on Lasers and Electro-Optics
LA English
DT Proceedings Paper
CT Conference on Lasers and Electro-Optics (CLEO)
CY MAY 06-11, 2012
CL San Jose, CA
AB Coherence decay times of and between fine-structure states is obtained from an InAs quantum dot ensemble using optical 2D Fourier-transform spectroscopy. This technique allows us to investigate properties of QDs within the ensemble.
C1 [Singh, R.; Moody, G.; Li, H.; Cundiff, S. T.] Univ Colorado, NIST, Joint Inst Lab Astrophys, Boulder, CO 80309 USA.
RP Singh, R (reprint author), Univ Colorado, NIST, Joint Inst Lab Astrophys, Boulder, CO 80309 USA.
EM cundiff@jila.colorado.edu
RI Cundiff, Steven/B-4974-2009; Moody, Galan/J-5811-2014; Wieck, Andreas
Dirk/C-5129-2009
OI Cundiff, Steven/0000-0002-7119-5197; Moody, Galan/0000-0001-7263-1483;
Wieck, Andreas Dirk/0000-0001-9776-2922
NR 3
TC 0
Z9 0
U1 0
U2 2
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2160-9020
BN 978-1-55752-933-6
J9 CONF LASER ELECTR
PY 2012
PG 2
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BCK05
UT WOS:000310362402133
ER
PT S
AU Verma, VB
Marsili, F
Baek, B
Lita, AE
Gerrits, T
Stern, JA
Mirin, RP
Nam, SW
AF Verma, V. B.
Marsili, F.
Baek, B.
Lita, A. E.
Gerrits, T.
Stern, J. A.
Mirin, R. P.
Nam, S. W.
GP IEEE
TI 55% system detection efficiency with self-aligned WSi superconducting
nanowire single-photon detectors
SO 2012 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO)
SE Conference on Lasers and Electro-Optics
LA English
DT Proceedings Paper
CT Conference on Lasers and Electro-Optics (CLEO)
CY MAY 06-11, 2012
CL San Jose, CA
AB We report a system detection efficiency of 55 % at 1500 nm with an amorphous tungsten-silicide (WSi) superconducting nanowire single-photon detector (SNSPD) using a self-aligned packaging scheme for alignment of the detector and optical fiber. (C) 2011 Optical Society of America
C1 [Verma, V. B.; Marsili, F.; Baek, B.; Lita, A. E.; Gerrits, T.; Mirin, R. P.; Nam, S. W.] NIST, 325 Broadway,MC 686-04, Boulder, CO 80305 USA.
[Stern, J. A.] Jet Prop Lab, Pasadena, CA 91109 USA.
[Baek, B.] Photon Spot Inc, Monrovia, CA 91016 USA.
RP Verma, VB (reprint author), NIST, 325 Broadway,MC 686-04, Boulder, CO 80305 USA.
EM verma@nist.gov
NR 7
TC 0
Z9 0
U1 1
U2 10
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2160-9020
BN 978-1-55752-933-6
J9 CONF LASER ELECTR
PY 2012
PG 2
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BCK05
UT WOS:000310362403187
ER
PT S
AU Vogl, U
Glasser, RT
Lett, PD
AF Vogl, Ulrich
Glasser, Ryan T.
Lett, Paul D.
GP IEEE
TI Superluminal Images and the Arrival of Spatial Information in Optical
Pulses with Negative Group Velocity
SO 2012 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO)
SE Conference on Lasers and Electro-Optics
LA English
DT Proceedings Paper
CT Conference on Lasers and Electro-Optics (CLEO)
CY MAY 06-11, 2012
CL San Jose, CA
AB We generate superluminal pulses via four-wave-mixing in Rb-85 vapor and imprint images on the pulses. This allows us to resolve experimentally the arrival time of the spatial information imprinted on the pulses. (C) 2011 Optical Society of America
C1 [Vogl, Ulrich; Glasser, Ryan T.; Lett, Paul D.] NIST, Joint Quantum Inst, Gaithersburg, MD 20899 USA.
RP Vogl, U (reprint author), NIST, Joint Quantum Inst, Gaithersburg, MD 20899 USA.
EM ulrich.vogl@nist.gov
RI Vogl, Ulrich/G-4624-2014
OI Vogl, Ulrich/0000-0003-2399-2797
NR 5
TC 0
Z9 0
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2160-9020
BN 978-1-55752-933-6
J9 CONF LASER ELECTR
PY 2012
PG 2
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BCK05
UT WOS:000310362403280
ER
PT S
AU Wayne, MA
Kwiat, PG
Restelli, A
Bienfang, JC
AF Wayne, Michael A.
Kwiat, Paul G.
Restelli, Alessandro
Bienfang, Joshua C.
GP IEEE
TI Increased maximum count rates in single-photon avalanche diodes with
ultrafast active quenching
SO 2012 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO)
SE Conference on Lasers and Electro-Optics
LA English
DT Proceedings Paper
CT Conference on Lasers and Electro-Optics (CLEO)
CY MAY 06-11, 2012
CL San Jose, CA
AB We demonstrate ultrafast active-quenching techniques in a silicon single-photon avalanche diode, and observe an order of magnitude reduction in afterpulsing, a factor of 1.8 reduction in diode recovery time, and increased maximum count rates. (C) 2012 Optical Society of America
C1 [Wayne, Michael A.; Kwiat, Paul G.] Univ Illinois, Dept Phys, 104 W Green St, Urbana, IL 60801 USA.
[Restelli, Alessandro; Bienfang, Joshua C.] Univ Maryland, Natl Inst Stand & Technol, Joint Quantum Inst, Gaithersburg, MD 20899 USA.
RP Wayne, MA (reprint author), Univ Illinois, Dept Phys, 104 W Green St, Urbana, IL 60801 USA.
EM bienfang@nist.gov
RI Restelli, Alessandro/A-4897-2009
OI Restelli, Alessandro/0000-0002-1289-3171
NR 3
TC 0
Z9 0
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2160-9020
BN 978-1-55752-933-6
J9 CONF LASER ELECTR
PY 2012
PG 2
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BCK05
UT WOS:000310362403253
ER
PT S
AU Yang, JK
Noh, H
Liew, SF
Rooks, MJ
Solomon, GS
Cao, H
AF Yang, Jin-Kyu
Noh, Heeso
Liew, Seng Fatt
Rooks, Michael J.
Solomon, Glenn S.
Cao, Hui
GP IEEE
TI Lasing modes in polycrystalline and amorphous structures
SO 2012 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO)
SE Conference on Lasers and Electro-Optics
LA English
DT Proceedings Paper
CT Conference on Lasers and Electro-Optics (CLEO)
CY MAY 06-11, 2012
CL San Jose, CA
ID LASER
AB We systematically studied the lasing characteristics in photonic polycrystalline and amorphous structures under optical pumping. The lasing modes are spatially localized, and blue shift as the structural order becomes short ranged.
C1 [Yang, Jin-Kyu; Noh, Heeso; Liew, Seng Fatt; Rooks, Michael J.; Cao, Hui] Yale Univ, Dept Appl Phys, New Haven, CT 06520 USA.
[Yang, Jin-Kyu] Kongju Natl Univ, Dept Opt Engn, Kong Ju 314701, South Korea.
[Solomon, Glenn S.] NIST, Joint Quantum Inst, Gaithersburg, MD 20899 USA.
[Solomon, Glenn S.] Univ Maryland, Gaithersburg, MD USA.
[Cao, Hui] Yale Univ, Dept Phys, New Haven, CT 06520 USA.
RP Yang, JK (reprint author), Yale Univ, Dept Appl Phys, New Haven, CT 06520 USA.
EM jin9ya@gmail.com
NR 6
TC 0
Z9 0
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2160-9020
BN 978-1-55752-933-6
J9 CONF LASER ELECTR
PY 2012
PG 2
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BCK05
UT WOS:000310362401232
ER
PT S
AU Ycas, G
Osterman, S
Diddams, S
AF Ycas, Gabriel
Osterman, Steve
Diddams, Scott
GP IEEE
TI Generation of a 650 nm-2000 nm Laser Frequency Comb based on an Erbium
Fiber Laser
SO 2012 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO)
SE Conference on Lasers and Electro-Optics
LA English
DT Proceedings Paper
CT Conference on Lasers and Electro-Optics (CLEO)
CY MAY 06-11, 2012
CL San Jose, CA
AB We present an Er: fiber based laser frequency comb spanning 650 nm - 2000 nm that employs amplification in Yb:fiber followed by continuum generation. Comb coherence is verified with f-2f interferometry and comparison to frequency stabilized lasers.
C1 [Ycas, Gabriel] Univ Colorado, Dept Phys, Boulder, CO 80309 USA.
[Ycas, Gabriel; Diddams, Scott] Natl Inst Stand & Technol, Boulder, CO USA.
[Osterman, Steve] Univ Colorado, Ctr Astrophys & Space Astron, Boulder, CO USA.
RP Ycas, G (reprint author), Univ Colorado, Dept Phys, Boulder, CO 80309 USA.
EM ycasg@colorado.edu; sdiddams@boulder.nist.gov
RI Diddams, Scott/L-2819-2013
NR 6
TC 0
Z9 0
U1 0
U2 2
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2160-9020
BN 978-1-55752-933-6
J9 CONF LASER ELECTR
PY 2012
PG 2
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BCK05
UT WOS:000310362401004
ER
PT S
AU Ye, J
AF Ye, Jun
GP IEEE
TI Frequency Comb Spectroscopy - Mid-Infrared to Extreme Ultraviolet
SO 2012 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO)
SE Conference on Lasers and Electro-Optics
LA English
DT Proceedings Paper
CT Conference on Lasers and Electro-Optics (CLEO)
CY MAY 06-11, 2012
CL San Jose, CA
C1 Univ Colorado, NIST, Joint Inst Lab Astrophys, Boulder, CO 80309 USA.
RP Ye, J (reprint author), Univ Colorado, NIST, Joint Inst Lab Astrophys, Boulder, CO 80309 USA.
EM Ye@jila.colorado.edu
NR 0
TC 0
Z9 0
U1 0
U2 2
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2160-9020
BN 978-1-55752-933-6
J9 CONF LASER ELECTR
PY 2012
PG 1
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BCK05
UT WOS:000310362401319
ER
PT S
AU Zhong, T
Wong, FNC
Restelli, A
Bienfang, JC
AF Zhong, Tian
Wong, Franco N. C.
Restelli, Alessandro
Bienfang, Joshua C.
GP IEEE
TI Efficient single-spatial-mode PPKTP waveguide source for high
dimensional entanglement-based QKD
SO 2012 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO)
SE Conference on Lasers and Electro-Optics
LA English
DT Proceedings Paper
CT Conference on Lasers and Electro-Optics (CLEO)
CY MAY 06-11, 2012
CL San Jose, CA
AB 8.9x10(8)/s single-spatial-mode time-energy entangled photon pairs at 1.56 mu m are efficiently generated in a PPKTP waveguide, demonstrating Mbps key rates and 93.3% Franson quantum-interference visibility using high speed self-differencing InGaAs detectors.
C1 [Zhong, Tian; Wong, Franco N. C.] MIT, Elect Res Lab, 77 Massachusetts Ave, Cambridge, MA 02139 USA.
[Restelli, Alessandro; Bienfang, Joshua C.] Univ Maryland, Natl Inst Standards & Technol, Joint Quantum Inst, Gaithersburg, MD 20899 USA.
RP Zhong, T (reprint author), MIT, Elect Res Lab, 77 Massachusetts Ave, Cambridge, MA 02139 USA.
EM tzhong@mit.edu
RI Restelli, Alessandro/A-4897-2009
OI Restelli, Alessandro/0000-0002-1289-3171
NR 3
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2160-9020
BN 978-1-55752-933-6
J9 CONF LASER ELECTR
PY 2012
PG 2
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BCK05
UT WOS:000310362401405
ER
PT S
AU Mahadevan, S
Ramsey, L
Bender, C
Terrien, R
Wright, JT
Halverson, S
Hearty, F
Nelson, M
Burton, A
Redman, S
Osterman, S
Diddams, S
Kasting, J
Endl, M
Deshpande, R
AF Mahadevan, Suvrath
Ramsey, Lawrence
Bender, Chad
Terrien, Ryan
Wright, Jason T.
Halverson, Sam
Hearty, Fred
Nelson, Matt
Burton, Adam
Redman, Stephen
Osterman, Steven
Diddams, Scott
Kasting, James
Endl, Michael
Deshpande, Rohit
BE McLean, IS
Ramsay, SK
Takami, H
TI The Habitable-Zone Planet Finder: A Stabilized Fiber-Fed NIR
Spectrograph for the Hobby-Eberly Telescope
SO GROUND-BASED AND AIRBORNE INSTRUMENTATION FOR ASTRONOMY IV
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Ground-Based and Airborne Telescopes IV
CY JUL 01-06, 2012
CL Amsterdam, NETHERLANDS
SP SPIE
DE Exoplanets; spectroscopy; near-infrared spectrograph design;
instrumentation; modal noise; radial velocity surveys
ID M-DWARFS; HIGH-RESOLUTION; H-BAND; STARS; MASS; VELOCITIES; PRECISION;
SPECTRA; CATALOG; NOISE
AB We present the scientific motivation and conceptual design for the recently funded Habitable-zone Planet Finder (HPF), a stabilized fiber-fed near-infrared (NIR) spectrograph for the 10 meter class Hobby-Eberly Telescope (HET) that will be capable of discovering low mass planets around M dwarfs. The HPF will cover the NIR Y & J bands to enable precise radial velocities to be obtained on mid M dwarfs, and enable the detection of low mass planets around these stars. The conceptual design is comprised of a cryostat cooled to 200K, a dual fiber-feed with a science and calibration fiber, a gold coated mosaic echelle grating, and a Teledyne Hawaii-2RG (H2RG)* NIR detector with a 1.7 mu m cutoff. A uranium-neon hollow-cathode lamp is the baseline wavelength calibration source, and we are actively testing laser frequency combs to enable even higher radial velocity precision. We will present the overall instrument system design and integration with the HET, and discuss major system challenges, key choices, and ongoing research and development projects to mitigate risk. We also discuss the ongoing process of target selection for the HPF survey.
C1 [Mahadevan, Suvrath; Ramsey, Lawrence; Bender, Chad; Terrien, Ryan; Wright, Jason T.; Halverson, Sam; Kasting, James; Deshpande, Rohit] Penn State Univ, Dept Astron & Astrophys, 525 Davey Lab, University Pk, PA 16802 USA.
[Mahadevan, Suvrath; Ramsey, Lawrence; Bender, Chad; Terrien, Ryan; Wright, Jason T.; Halverson, Sam; Kasting, James; Deshpande, Rohit] Penn State Univ, Ctr Exoplanets & Habitable Worlds, University Pk, PA 16802 USA.
[Hearty, Fred; Nelson, Matt; Burton, Adam; Osterman, Steven] Univ Virginia, Dept Astron, Charlottesville, VA 22904 USA.
[Redman, Stephen] Natl Inst Stand & Technol, Atom Phys Div, Gaithersburg, MD 20899 USA.
[Osterman, Steven] Univ Colorado, Ctr Astrophys & Space Astron, Boulder, CO 80309 USA.
[Diddams, Scott] Natl Inst Stand & Technol, Boulder, CO USA.
[Endl, Michael] Univ Texas Austin, McDonald Observat, Austin, TX 78712 USA.
RP Mahadevan, S (reprint author), Penn State Univ, Dept Astron & Astrophys, 525 Davey Lab, University Pk, PA 16802 USA.
EM suvrath@psu.edu
RI Diddams, Scott/L-2819-2013;
OI Wright, Jason/0000-0001-6160-5888
FU Center for Exoplanets and Habitable Worlds; Pennsylvania State
University; Eberly College of Science; Pennsylvania Space Grant
Consortium; NSF [AST-1006676, AST-1126413]; NASA Astrobiology Institute
(NAI); PSARC
FX This work was partially supported by the Center for Exoplanets and
Habitable Worlds, which is supported by the Pennsylvania State
University, the Eberly College of Science, and the Pennsylvania Space
Grant Consortium. We acknowledge support from NSF grant AST-1006676,
AST- 1126413, the NASA Astrobiology Institute (NAI), and PSARC. This
research was performed while SLR held a National Research Council
Research Associateship Award at NIST.
NR 28
TC 29
Z9 29
U1 2
U2 2
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-9147-3
J9 PROC SPIE
PY 2012
VL 8446
AR 84461S
DI 10.1117/12.926102
PG 14
WC Engineering, Aerospace; Instruments & Instrumentation; Optics
SC Engineering; Instruments & Instrumentation; Optics
GA BDL69
UT WOS:000313675900055
ER
PT S
AU McCoy, KS
Ramsey, L
Mahadevan, S
Halverson, S
Redman, SL
AF McCoy, Keegan S.
Ramsey, Lawrence
Mahadevan, Suvrath
Halverson, Samuel
Redman, Stephen L.
BE McLean, IS
Ramsay, SK
Takami, H
TI Optical fiber modal noise in the 0.8 to 1.5 micron region and
implications for near infrared precision radial velocity measurements
SO GROUND-BASED AND AIRBORNE INSTRUMENTATION FOR ASTRONOMY IV
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Ground-Based and Airborne Telescopes IV
CY JUL 01-06, 2012
CL Amsterdam, NETHERLANDS
SP SPIE
DE Fibers; Modal Noise; Fiber Scrambling; Planet Searches; Precision Radial
Velocity; Spectrograph
ID SPECTRA
AB Modal noise in fibers has been shown to limit the signal-to-noise ratio achievable in fiber-coupled, high-resolution spectrographs if it is not mitigated via modal scrambling techniques. Modal noise become significantly more important as the wavelength increases and presents a risk to the new generation of near-infrared precision radial spectrographs under construction or being proposed to search for planets around cool M-dwarf stars, which emit most of their light in the NIR. We present experimental results of tests at Penn State University characterizing modal noise in the far visible out to 1.5 microns and the degree of modal scrambling we obtained using mechanical scramblers. These efforts are part of a risk mitigation effort for the Habitable Zone Planet Finder spectrograph currently under development at Penn State University.
C1 [McCoy, Keegan S.; Ramsey, Lawrence; Mahadevan, Suvrath; Halverson, Samuel] Penn State Univ, Dept Astron & Astrophys, 525 Davey Lab, University Pk, PA 16802 USA.
[Ramsey, Lawrence; Mahadevan, Suvrath] Penn State Univ, Ctr Exoplanets Habitable Worlds, University Pk, PA 16802 USA.
[Redman, Stephen L.] Natl Inst Stand & Technol, Atom Phys Div, Gaithersburg, MD 20899 USA.
RP McCoy, KS (reprint author), Penn State Univ, Dept Astron & Astrophys, 525 Davey Lab, University Pk, PA 16802 USA.
EM lwr@psu.edu
FU Center for Exoplanets and Habitable Worlds; Pennsylvania State
University; Eberly College of Science; Pennsylvania Space Grant
Consortium; NSF [AST- 1006676, AST- 1126413]; NASA Astrobiology
Institute ( NAI); PSARC; United States Air Force
FX Dan Anderson, Kyle McCausand and Arpita Roy contributed to the tests
with the mechanical agitator. This work was partially supported by the
Center for Exoplanets and Habitable Worlds, which is supported by the
Pennsylvania State University, the Eberly College of Science, and the
Pennsylvania Space Grant Consortium. We acknowledge support from NSF
grant AST- 1006676, AST- 1126413, the NASA Astrobiology Institute (
NAI), and PSARC. This research was performed while SLR held a National
Research Council Research Associateship Award at NIST. Much of this work
constitutes Mr. Keegan McCoy's MS thesis in Electrical Engineering and
as a student he was supported this last year by the United States Air
Force.
NR 10
TC 9
Z9 9
U1 0
U2 4
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-9147-3
J9 PROC SPIE
PY 2012
VL 8446
AR 84468J
DI 10.1117/12.926287
PG 8
WC Engineering, Aerospace; Instruments & Instrumentation; Optics
SC Engineering; Instruments & Instrumentation; Optics
GA BDL69
UT WOS:000313675900264
ER
PT S
AU Redman, SL
Kerber, F
Nave, G
Mahadevan, S
Ramsey, LW
Smoker, J
Kaeufl, HU
Figueira, PRL
AF Redman, Stephen L.
Kerber, Florian
Nave, Gillian
Mahadevan, Suvrath
Ramsey, Lawrence W.
Smoker, Jonathan
Kaeufl, Hans-Ulrich
Figueira, P. R. L.
BE McLean, IS
Ramsay, SK
Takami, H
TI Near-infrared calibration systems for precise radial-velocity
measurements
SO GROUND-BASED AND AIRBORNE INSTRUMENTATION FOR ASTRONOMY IV
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Ground-Based and Airborne Telescopes IV
CY JUL 01-06, 2012
CL Amsterdam, NETHERLANDS
SP SPIE
DE near infrared; calibration; radial velocities; atomic spectra; molecular
spectra; exoplanets
ID HOLLOW-CATHODE LAMPS; ESTABLISHING WAVELENGTH STANDARDS;
PRESSURE-INDUCED SHIFT; NM REGION; LINES; SPECTRUM; SPECTROGRAPHS;
PLANETS; SEARCH; NEON
AB We present work done to prepare two new near-infrared calibration sources for use on high-precision astrophysical spectrographs. Uranium-neon is an atomic calibration source, commercially available as a hollow-cathode lamp, with over 10 000 known emission lines between 0.85 and 4 mu m. Four gas cells - containing C2H2, (HCN)-C-13, (CO)-C-12, and (CO)-C-13, respectively-are available as National Institute of Standards and Technology (NIST) Standard Reference Materials (SRMs), and provide narrow absorption lines between 1.5 and 1.65 mu m. These calibration sources may prove useful for wavelength-calibrating the future near-infrared high-precision radial-velocity spectrometers, including the Calar Alto high-Resolution search for M dwarfs with Exo-earths with a Near-infrared Echelle Spectrograph (CARMENES),(1) the SpectroPolarimetre InfraROUge (SPIRou) *, and the Habitable-Zone Planet Finder (HPF).(2)
C1 [Redman, Stephen L.; Nave, Gillian] NIST, 100 Bur Dr, Gaithersburg, MD 20899 USA.
[Kerber, Florian; Kaeufl, Hans-Ulrich] European Southern Observ, D-85718 Garching, Germany.
[Mahadevan, Suvrath; Ramsey, Lawrence W.] Penn State Univ, University Pk, PA 16802 USA.
[Mahadevan, Suvrath; Ramsey, Lawrence W.] Penn State Univ, Ctr Explanets & Habitable Worlds, University Pk, PA 16802 USA.
[Smoker, Jonathan] European Southern Observ, Santiago, 19001, Chile.
[Figueira, P. R. L.] Ctr Astrofis Univ Porto, Oporto, Portugal.
RP Redman, SL (reprint author), NIST, 100 Bur Dr, Gaithersburg, MD 20899 USA.
EM Stephen.Redman@nist.gov; fkerber@eso.org; gnave@nist.gov;
suvrath@astro.psu.edu; lwr@astro.psu.edu; jsmoker@eso.org;
hukaufl@eso.org; pedro.figueira@astro.up.pt
RI Figueira, Pedro/J-4916-2013
OI Figueira, Pedro/0000-0001-8504-283X
FU Center for Exoplanets and Habitable Worlds; Pennsylvania State
University; Eberly College of Science; Pennsylvania Space Grant
Consortium; NAI; PSARC; NSF [AST- 1006676]; European Research Council;
European Community [239953]; Funda, caopara a Ciencia e a Tecnologia
(FCT) [PTDC/ CTE- AST/ 098528/ 2008]
FX This research was performed while S.L.R.held a National Research Council
Research Associateship Award at nist. The authors would like to thank
William Swann for lending us four gas cells and a super luminescent
diode that guided this work. This work was partially supported by the
Center for Exoplanets and Habitable Worlds, which is supported by the
Pennsylvania State University, the Eberly College of Science, and the
Pennsylvania Space Grant Consortium. We acknowledge support from the
NAI, PSARC, and NSF grant AST- 1006676. P. F. was supported by the
European Research Council/ European Community under the FP7 through
Starting Grant agreement number 239953, as well as by Funda, caopara a
Ciencia e a Tecnologia (FCT) in the form of grant reference PTDC/ CTE-
AST/ 098528/ 2008. We thank ESO Chile for granting technical time and
Paranal staff for technical support during the preparations of the test.
NR 25
TC 1
Z9 1
U1 0
U2 3
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-9147-3
J9 PROC SPIE
PY 2012
VL 8446
AR 84468G
DI 10.1117/12.925585
PG 12
WC Engineering, Aerospace; Instruments & Instrumentation; Optics
SC Engineering; Instruments & Instrumentation; Optics
GA BDL69
UT WOS:000313675900261
ER
PT J
AU Ferraris, CF
Martys, NS
AF Ferraris, C. F.
Martys, N. S.
BE Roussel, N
TI Concrete rheometers
SO UNDERSTANDING THE RHEOLOGY OF CONCRETE
SE Woodhead Publishing in Materials
LA English
DT Article; Book Chapter
DE concrete rheometers; multiscale approach; concrete flow simulation
ID NEWTONIAN FLUID; FRESH CONCRETE; SUSPENSION; SHAPE
AB This chapter introduces current technology for measuring the rheological properties of concrete. The need to evaluate or assess the flow properties of concrete has resulted in the development and, in a few cases, standardization of almost a 100 test methods. These can be divided into empirical tests that try to simulate field conditions and tests that attempt to quantify direct rheological property measurements. In the past 20 years, there has been a shift from empirical tests toward scientifically based methods that produce results in fundamental units. Numerical models have also been developed to help interpret experimental results. These models can account for the influence of particle shape and concentration on the flow of concrete in concrete rheometers.
C1 [Ferraris, C. F.; Martys, N. S.] NIST, Gaithersburg, MD 20899 USA.
RP Ferraris, CF (reprint author), NIST, 100 Bur Dr,MS 8615, Gaithersburg, MD 20899 USA.
EM clarissa@nist.gov
NR 37
TC 4
Z9 4
U1 0
U2 2
PU WOODHEAD PUBL LTD
PI CAMBRIDGE
PA ABINGTON HALL ABINGTON, CAMBRIDGE CB1 6AH, CAMBS, ENGLAND
BN 978-0-85709-528-2
J9 WOODHEAD PUBL MATER
PY 2012
BP 63
EP 82
D2 10.1533/9780857095282
PG 20
WC Construction & Building Technology; Materials Science, Multidisciplinary
SC Construction & Building Technology; Materials Science
GA BDP39
UT WOS:000314302300004
ER
PT S
AU Riviere, P
Ranitovic, P
Palacios, A
Perez-Torres, JF
Hogle, CW
Murnane, MM
Kapteyn, HC
Martin, F
AF Riviere, P.
Ranitovic, P.
Palacios, A.
Perez-Torres, J. F.
Hogle, C. W.
Murnane, M. M.
Kapteyn, H. C.
Martin, F.
BE Williams, ID
VanDerHart, HW
McCann, JF
Crothers, DSF
TI Near-threshold H-2 electron and nuclear dynamics induced by attosecond
pulse trains and probed by IR pulses
SO XXVII INTERNATIONAL CONFERENCE ON PHOTONIC, ELECTRONIC AND ATOMIC
COLLISIONS (ICPEAC 2011), PTS 1-15
SE Journal of Physics Conference Series
LA English
DT Proceedings Paper
CT 27th International Conference on Photonic, Electronic and Atomic
Collisions (ICPEAC)
CY JUL 27-AUG 02, 2011
CL Queens Univ Belfast, Belfast, NORTH IRELAND
SP Andor Technol, Belfast City Council, Belfast Visitor & Convent Bur, Coherent, CVI Melles Griot, Dell, Int Union Pure & Appl Phys (IUPAP), Invest No Ireland, Laserlines, UK Cold Atoms/Condensed Matter Network (EPSRC), Phys Review Letters & Phys Review A, Quantemol, Springer, Great Britain Sasakawa Fdn, IoP Publishing - Journal Phys B: Atom, Mol & Opt Phys, IoP Publishing - Journal Phys: Conf Series
HO Queens Univ Belfast
AB We present new experimental and theoretical results for the ionization of the H-2 molecule by an attosecond pulse train pump IR probe scheme. The nuclear degrees of freedom introduce an additional complexity to the standard case of atomic targets. This work demonstrates a new way of coherent control processes in molecules where the XUV attosecond radiation is used to access highly excited electronic states, and the IR acts as a controlling factor.
C1 [Riviere, P.; Palacios, A.; Perez-Torres, J. F.; Martin, F.] Univ Autonoma Madrid, Dept Quim, E-28049 Madrid, Spain.
[Ranitovic, P.; Hogle, C. W.; Murnane, M. M.; Kapteyn, H. C.] Univ Colorado, JIIA, Boulder, CO 80309 USA.
[Ranitovic, P.; Hogle, C. W.; Murnane, M. M.; Kapteyn, H. C.] NIST, Dept Phys, Boulder, CO 80309 USA.
[Martin, F.] IMDEA Nanociencia, Madrid 28049, Spain.
RP Riviere, P (reprint author), Univ Autonoma Madrid, Dept Quim, E-28049 Madrid, Spain.
EM paula.riviere@uam.es
RI Kapteyn, Henry/H-6559-2011; ranitovic, predrag/A-2282-2014; Riviere,
Paula/L-7373-2014
OI Kapteyn, Henry/0000-0001-8386-6317; Riviere, Paula/0000-0002-8866-5845
NR 6
TC 0
Z9 0
U1 0
U2 3
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 1742-6588
J9 J PHYS CONF SER
PY 2012
VL 388
AR UNSP 032064
DI 10.1088/1742-6596/388/3/032064
PG 1
WC Physics, Atomic, Molecular & Chemical; Physics, Multidisciplinary
SC Physics
GA BDU81
UT WOS:000314994700227
ER
PT S
AU Verdebout, S
Rynkun, P
Jonsson, P
Gaigalas, G
Fischer, CF
Godefroid, M
AF Verdebout, S.
Rynkun, P.
Jonsson, P.
Gaigalas, G.
Fischer, C. Froese
Godefroid, M.
BE Williams, ID
VanDerHart, HW
McCann, JF
Crothers, DSF
TI Interaction of Variational Localised Correlation Functions for Atomic
Properties of Be I
SO XXVII INTERNATIONAL CONFERENCE ON PHOTONIC, ELECTRONIC AND ATOMIC
COLLISIONS (ICPEAC 2011), PTS 1-15
SE Journal of Physics Conference Series
LA English
DT Proceedings Paper
CT 27th International Conference on Photonic, Electronic and Atomic
Collisions (ICPEAC)
CY JUL 27-AUG 02, 2011
CL Queens Univ Belfast, Belfast, NORTH IRELAND
SP Andor Technol, Belfast City Council, Belfast Visitor & Convent Bur, Coherent, CVI Melles Griot, Dell, Int Union Pure & Appl Phys (IUPAP), Invest No Ireland, Laserlines, UK Cold Atoms/Condensed Matter Network (EPSRC), Phys Review Letters & Phys Review A, Quantemol, Springer, Great Britain Sasakawa Fdn, IoP Publishing - Journal Phys B: Atom, Mol & Opt Phys, IoP Publishing - Journal Phys: Conf Series
HO Queens Univ Belfast
ID STRUCTURE PACKAGE
AB We present some progress associated to the localised correlation function interaction (LCFI) method. In this report, the LCFI method is tested not only for total energy but also for the specific mass shift operator, the hyperfine structure parameters and the transition probabilities. These properties are computed for the three lowest electronic states of the beryllium atom. These calculations illustrate the importance of the contraction effects.
C1 [Verdebout, S.; Godefroid, M.] Univ Libre Bruxelles, Chim Quant & Photophys, B-1050 Brussels, Belgium.
[Rynkun, P.; Gaigalas, G.] Vilnius Pedag Univ Vilnius, LT-08106 Vilnius, Lithuania.
[Jonsson, P.] Malmo Univ, Ctr Technol Studies, S-20506 Malmo, Sweden.
[Gaigalas, G.] Vilnius Univ, Inst Theoret Phys & Astron, LT-01108 Vilnius, Lithuania.
[Fischer, C. Froese] Natl Inst Stand & Technol, Gaithersburg, MD USA.
RP Verdebout, S (reprint author), Univ Libre Bruxelles, Chim Quant & Photophys, B-1050 Brussels, Belgium.
EM sverdebo@ulb.ac.be
RI Jonsson, Per/L-3602-2013
OI Jonsson, Per/0000-0001-6818-9637
NR 4
TC 0
Z9 0
U1 1
U2 13
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 1742-6588
J9 J PHYS CONF SER
PY 2012
VL 388
AR UNSP 152006
DI 10.1088/1742-6596/388/15/152006
PG 1
WC Physics, Atomic, Molecular & Chemical; Physics, Multidisciplinary
SC Physics
GA BDU81
UT WOS:000314994700684
ER
PT S
AU Ruf, CS
Gleason, S
Jelenak, Z
Katzberg, S
Ridley, A
Rose, R
Scherrer, J
Zavorotny, V
AF Ruf, Christopher S.
Gleason, Scott
Jelenak, Zorana
Katzberg, Stephen
Ridley, Aaron
Rose, Randall
Scherrer, John
Zavorotny, Valery
GP IEEE
TI THE CYGNSS NANOSATELLITE CONSTELLATION HURRICANE MISSION
SO 2012 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS)
SE IEEE International Symposium on Geoscience and Remote Sensing IGARSS
LA English
DT Proceedings Paper
CT IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
CY JUL 22-27, 2012
CL Munich, GERMANY
SP IEEE, IEEE Geosci & Remote Sensing Soc, DLR, ESA
DE GNSS; Tropical Cyclones; GPS
ID GPS SIGNALS
AB The Cyclone Global Navigation Satellite System (CYGNSS) is a spaceborne mission concept focused on tropical cyclone (TC) inner core process studies. CYGNSS attempts to resolve the principle deficiencies with current TC intensity forecasts, which lies in inadequate observations and modeling of the inner core. CYGNSS consists of 8 GPS bistatic radar receivers deployed on separate nanosatellites. The primary science driver is rapid sampling of ocean surface winds in the inner core of tropical cyclones
C1 [Ruf, Christopher S.; Ridley, Aaron] Univ Michigan, Ann Arbor, MI 48109 USA.
[Gleason, Scott] Concordia Univ, Montreal, PQ, Canada.
[Jelenak, Zorana] NOAA NESDIS StAR UCAR, Silver Spring, MD USA.
[Katzberg, Stephen] S Carolina State Univ, Orangeburg, SC USA.
[Rose, Randall; Scherrer, John] Southwest Res Inst, San Antonio, TX USA.
[Zavorotny, Valery] NOAA Earth Syst Res Lab, Boulder, CO USA.
RP Ruf, CS (reprint author), Univ Michigan, Ann Arbor, MI 48109 USA.
RI Jelenak, Zorana/F-5596-2010; Ridley, Aaron/F-3943-2011; Ruf,
Christopher/I-9463-2012;
OI Jelenak, Zorana/0000-0003-0510-2973; Ridley, Aaron/0000-0001-6933-8534;
Gleason, Scott/0000-0002-8387-5093
NR 5
TC 28
Z9 28
U1 0
U2 3
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2153-6996
BN 978-1-4673-1159-5
J9 INT GEOSCI REMOTE SE
PY 2012
BP 214
EP 216
DI 10.1109/IGARSS.2012.6351600
PG 3
WC Engineering, Electrical & Electronic; Geosciences, Multidisciplinary;
Remote Sensing
SC Engineering; Geology; Remote Sensing
GA BDG99
UT WOS:000313189400055
ER
PT S
AU Flynn, L
Rault, D
Jaross, G
Petropavlovskikh, I
Long, C
Beach, E
Yu, W
Niu, J
Swales, D
Pan, C
Wu, X
AF Flynn, L.
Rault, D.
Jaross, G.
Petropavlovskikh, I.
Long, C.
Beach, E.
Yu, W.
Niu, J.
Swales, D.
Pan, C.
Wu, X.
GP IEEE
TI SUOMI NATIONAL POLAR-ORBITING PARTNERSHIP: VERIFICATION AND EARLY
OPERATIONS FOR THE OZONE MAPPING AND PROFILE SUITE
SO 2012 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS)
SE IEEE International Symposium on Geoscience and Remote Sensing IGARSS
LA English
DT Proceedings Paper
CT IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
CY JUL 22-27, 2012
CL Munich, GERMANY
SP IEEE, IEEE Geosci & Remote Sensing Soc, DLR, ESA
DE Atmospheric Ozone; Remote Sensing; Satellites
AB A new suite of instruments to estimate atmospheric ozone by measuring scattered solar irradiance began operating in January 2012. The measurements will be used to continue existing records of atmospheric ozone profiles as part of the NOAA Joint Polar Satellite System. This paper presents preliminary evaluations of these new products.
C1 [Flynn, L.; Wu, X.] NOAA NESDIS Camp Springs MD 20746, Washington, DC 20230 USA.
[Rault, D.] NASA LaRC, Hampton, VA 23681 USA.
[Jaross, G.] SSAI, Greenbelt, MD 20771 USA.
[Petropavlovskikh, I.] NOAA ESRL CIRES, Boulder, CO 80303 USA.
[Long, C.] NOAA NWS, Springs, MD 20746 USA.
[Beach, E.; Swales, D.] IMSG, Springs, MD 20746 USA.
[Yu, W.; Niu, J.] ERT, Springs, MD 20746 USA.
[Pan, C.] CICS UMd Coll, College Pk, MD 20740 USA.
RP Flynn, L (reprint author), NOAA NESDIS Camp Springs MD 20746, Washington, DC 20230 USA.
RI Beach, Eric/F-5576-2010; Flynn, Lawrence/B-6321-2009; Wu,
Xiangqian/F-5634-2010
OI Flynn, Lawrence/0000-0001-6856-2614; Wu, Xiangqian/0000-0002-7804-5650
NR 9
TC 0
Z9 0
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2153-6996
BN 978-1-4673-1159-5
J9 INT GEOSCI REMOTE SE
PY 2012
BP 280
EP 283
DI 10.1109/IGARSS.2012.6351583
PG 4
WC Engineering, Electrical & Electronic; Geosciences, Multidisciplinary;
Remote Sensing
SC Engineering; Geology; Remote Sensing
GA BDG99
UT WOS:000313189400069
ER
PT S
AU Kopp, TJ
Hillger, DW
Heidinger, AK
AF Kopp, Thomas J.
Hillger, Donald W.
Heidinger, Andrew K.
GP IEEE
TI TACKLING THE HYDRA, VALIDATION OF THE IMAGERY ENVIRONMENTAL DATA RECORD
(EDR) AND CLOUD MASK
SO 2012 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS)
SE IEEE International Symposium on Geoscience and Remote Sensing IGARSS
LA English
DT Proceedings Paper
CT IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
CY JUL 22-27, 2012
CL Munich, GERMANY
SP IEEE, IEEE Geosci & Remote Sensing Soc, DLR, ESA
ID AEROSOLS; VIIRS
C1 [Kopp, Thomas J.] Aerosp Corp, Los Angeles, CA 90009 USA.
[Hillger, Donald W.; Heidinger, Andrew K.] NOAA NESDIS STAR, Madison, NJ USA.
RP Kopp, TJ (reprint author), Aerosp Corp, Los Angeles, CA 90009 USA.
RI Hillger, Donald/F-5592-2010; Heidinger, Andrew/F-5591-2010
OI Hillger, Donald/0000-0001-7297-2640; Heidinger,
Andrew/0000-0001-7631-109X
NR 7
TC 0
Z9 0
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2153-6996
BN 978-1-4673-1159-5
J9 INT GEOSCI REMOTE SE
PY 2012
BP 284
EP 286
DI 10.1109/IGARSS.2012.6351582
PG 3
WC Engineering, Electrical & Electronic; Geosciences, Multidisciplinary;
Remote Sensing
SC Engineering; Geology; Remote Sensing
GA BDG99
UT WOS:000313189400070
ER
PT S
AU Arnone, R
Fargion, G
Wang, MH
Martinolich, P
Davis, C
Trees, C
Ladner, S
Lawson, A
Zibordi, G
Lee, ZP
Ondrusek, M
Ahmed, S
AF Arnone, Robert
Fargion, Giulietta
Wang, Menghua
Martinolich, Paul
Davis, Curt
Trees, Charles
Ladner, Sherwin
Lawson, Adam
Zibordi, Giuseppe
Lee, Zhong Ping
Ondrusek, Michael
Ahmed, Samuel
GP IEEE
TI OCEAN COLOR PRODUCTS FROM VISIBLE INFARED IMAGER RADIOMETER SUITE
(VIIRS)
SO 2012 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS)
SE IEEE International Symposium on Geoscience and Remote Sensing IGARSS
LA English
DT Proceedings Paper
CT IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
CY JUL 22-27, 2012
CL Munich, GERMANY
SP IEEE, IEEE Geosci & Remote Sensing Soc, DLR, ESA
ID ALGORITHM
AB The Ocean Color CAL/VAL team is evaluating the VIIRS bio-optical products for real-time operations. VIIRS ocean data are being processed using standard government algorithms, and channel calibration and product validation evaluation activities are ongoing. A network of 27 global "Golden Regions" has been established to evaluate and validate bio-optical products. Satellite inter-comparison for data consistency with current ocean color products, and real time vicarious adjustment calculation are performed using in situ water leaving radiance propagated to Top of Atmosphere in coastal and open ocean regions. In addition, routine matchups with VIIRS and MODIS-Aqua are done with in situ data collection from ships and real time coastal AERONET-OC sites. The above activities, product evaluation and tracking of channel stability, are being contributed to the JPSS Team to evaluate the overall mission, including calibration and inter-satellite product consistency. Initial NPP VIIRS ocean bio-optical products are demonstrated with other ocean color satellites.
C1 [Arnone, Robert; Ladner, Sherwin; Lawson, Adam] USN, Res Lab, Stennis Space Ctr, MS 39529 USA.
[Fargion, Giulietta] San Diego State Univ, San Diego, CA 2 USA.
[Wang, Menghua; Ondrusek, Michael] NOAA NESDIS, STAR, MD USA.
[Fargion, Giulietta; Martinolich, Paul] QinetiQ Corp, Stennis Space Ctr, Waltham, MA USA.
[Davis, Curt] Oregon State Univ, Corvallis, OR USA.
[Trees, Charles] NATO Undersea Res Ctr, La Spezia, Italy.
[Zibordi, Giuseppe] Joint Res Ctr, Ispra, Italy.
[Lee, Zhong Ping] Univ Massachusetts, Boston, MA USA.
[Ahmed, Samuel] CUNY City Coll, New York, NY USA.
RP Arnone, R (reprint author), USN, Res Lab, Stennis Space Ctr, MS 39529 USA.
RI Ondrusek, Michael/F-5617-2010; Wang, Menghua/F-5631-2010
OI Ondrusek, Michael/0000-0002-5311-9094; Wang, Menghua/0000-0001-7019-3125
NR 12
TC 4
Z9 4
U1 0
U2 4
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2153-6996
BN 978-1-4673-1159-5
J9 INT GEOSCI REMOTE SE
PY 2012
BP 287
EP 290
DI 10.1109/IGARSS.2012.6351581
PG 4
WC Engineering, Electrical & Electronic; Geosciences, Multidisciplinary;
Remote Sensing
SC Engineering; Geology; Remote Sensing
GA BDG99
UT WOS:000313189400071
ER
PT S
AU Nalli, NR
Barnet, CD
Divakarla, M
Zhou, L
Gu, D
Liu, X
Kizer, S
Gambacorta, A
AF Nalli, N. R.
Barnet, C. D.
Divakarla, M.
Zhou, L.
Gu, D.
Liu, X.
Kizer, S.
Gambacorta, A.
GP IEEE
TI JOINT POLAR SATELLITE SYSTEM (JPSS) CROSS-TRACK INFRARED MICROWAVE
SOUNDING SUITE (CRIMSS) ENVIRONMENTAL DATA RECORD VALIDATION STATUS
SO 2012 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS)
SE IEEE International Symposium on Geoscience and Remote Sensing IGARSS
LA English
DT Proceedings Paper
CT IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
CY JUL 22-27, 2012
CL Munich, GERMANY
SP IEEE, IEEE Geosci & Remote Sensing Soc, DLR, ESA
DE JPSS; CrIMSS; CrIS/ATMS; EDR; AVTP; AVMP; Suomi NPP; cal/val;
validation; NPROVS; AEROSE
ID TEMPERATURE; RETRIEVAL
AB This paper reports on the recent status of the validation program for the Suomi National Polar-orbiting Partnership (NPP) Cross-track Infrared Microwave Sounding Suite (CrIMSS), a hyperspectral infrared sounding system designed for providing high resolution atmospheric vertical temperature and moisture profile (AVTP and AVMP) environmental data records (EDRs). CrIMSS EDR validation activities, currently (as of this writing, May 2012) segueing from the Early-Orbit Checkout (EOC) phase to the Intensive Cal/Val (ICV) phase of the program, are briefly highlighted.
C1 [Nalli, N. R.; Barnet, C. D.; Divakarla, M.; Zhou, L.; Gu, D.; Liu, X.; Kizer, S.; Gambacorta, A.] NOAA NESDIS STAR, Camp Springs, MD USA.
RP Nalli, NR (reprint author), NOAA NESDIS STAR, Camp Springs, MD USA.
RI Nalli, Nicholas/F-6731-2010; Gambacorta, Antonia/E-7937-2011; Divakarla,
Murty/E-7936-2011; Barnet, Christopher/F-5573-2010; Zhou,
Lihang/E-7938-2011
OI Nalli, Nicholas/0000-0002-6914-5537; Gambacorta,
Antonia/0000-0002-2446-9132; Divakarla, Murty/0000-0002-0399-3381; Zhou,
Lihang/0000-0001-6232-2871
NR 14
TC 1
Z9 1
U1 1
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2153-6996
BN 978-1-4673-1159-5
J9 INT GEOSCI REMOTE SE
PY 2012
BP 291
EP 294
DI 10.1109/IGARSS.2012.6351580
PG 4
WC Engineering, Electrical & Electronic; Geosciences, Multidisciplinary;
Remote Sensing
SC Engineering; Geology; Remote Sensing
GA BDG99
UT WOS:000313189400072
ER
PT S
AU Temimi, M
Lacava, T
Coviello, I
Faruolo, M
Khanbilvardi, R
Pergola, N
Tramutoli, V
Wang, DN
AF Temimi, Marouane
Lacava, Teodosio
Coviello, Irina
Faruolo, Mariapia
Khanbilvardi, Reza
Pergola, Nicola
Tramutoli, Valerio
Wang, Donna
GP IEEE
TI A GLOBAL PASSIVE MICROWAVE BASED WETNESS INDEX FOR THE MONITORING OF
SOIL MOISTURE AND INUNDATION
SO 2012 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS)
SE IEEE International Symposium on Geoscience and Remote Sensing IGARSS
LA English
DT Proceedings Paper
CT IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
CY JUL 22-27, 2012
CL Munich, GERMANY
SP IEEE, IEEE Geosci & Remote Sensing Soc, DLR, ESA
DE Passive microwave; PRVI; inundation
ID AMSR-E; RIVER-BASIN; SNOW COVER; SSM/I; TEMPERATURE; RETRIEVAL; IMAGER;
AREA
AB The objective of study is to implement an automated microwave based index to detect and monitor extreme soil wetness and flooding conditions on global scale. The proposed index is based on the Polarization Ratio (PR) that is determined from brightness temperature measures from the AMSR-E sensor. The Robust Satellite Technique (RST) is then applied to the PR to determine a Polarization Ratio Variational Index (PRVI) which is sensitive to extreme hydrological conditions in term of wetness but also drought conditions. The PRVI was determined at different frequencies ranging from the 37 GHz to the 6.9 GHz. The index was tested during extreme flooding events in Asia and Europe as well as in Northern America. The index was implemented globally using observation from passive microwave instruments. The analysis of the results on global scale shows that the index was sensitive to extreme hydrological event and that false alarms were mostly issued over northern snow covered regions only. This implies that the proposed index can be used to assess and delineate flooding conditions.
C1 [Temimi, Marouane; Khanbilvardi, Reza; Pergola, Nicola; Wang, Donna] NOAA CREST, New York, NY USA.
[Lacava, Teodosio; Coviello, Irina; Faruolo, Mariapia] Inst Methodol Environm Analyses Italian Natl Res, Tito, Italy.
[Lacava, Teodosio; Pergola, Nicola; Tramutoli, Valerio] Univ Basilicata, Dept Engn & Phys Environm, Potenza, Italy.
[Wang, Donna] Univ Michigan, Ann Arbor, MI USA.
RP Temimi, M (reprint author), NOAA CREST, New York, NY USA.
RI Pergola, Nicola/I-1236-2014; lacava, teodosio/I-4357-2014; Tramutoli,
Valerio/E-6706-2011
OI Pergola, Nicola/0000-0001-7619-6685; lacava,
teodosio/0000-0002-6732-4419; Tramutoli, Valerio/0000-0003-3875-7909
NR 13
TC 1
Z9 1
U1 1
U2 2
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2153-6996
BN 978-1-4673-1159-5
J9 INT GEOSCI REMOTE SE
PY 2012
BP 674
EP 677
DI 10.1109/IGARSS.2012.6351504
PG 4
WC Engineering, Electrical & Electronic; Geosciences, Multidisciplinary;
Remote Sensing
SC Engineering; Geology; Remote Sensing
GA BDG99
UT WOS:000313189400165
ER
PT S
AU Liu, QH
Cao, CY
Weng, FZ
AF Liu, Quanhua
Cao, Changyong
Weng, Fuzhong
GP IEEE
TI SUOMI NPP VIIRS EMISSIVE BAND RADIANCE CALIBRATION AND ANALYSIS
SO 2012 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS)
SE IEEE International Symposium on Geoscience and Remote Sensing IGARSS
LA English
DT Proceedings Paper
CT IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
CY JUL 22-27, 2012
CL Munich, GERMANY
SP IEEE, IEEE Geosci & Remote Sensing Soc, DLR, ESA
DE VIIRS; Thermal Emissive Band; Calibration
ID RADIATIVE-TRANSFER; ATMOSPHERES
AB VIIRS thermal emissive bands (TEB) have been analyzed. The analysis results indicate the VIIRS TEB is stable and exceeds the specification. Comparisons between the VIIRS and other sensors such as AVHRR, MODIS and CrIS demonstrated that VIIRS TEB agrees well with those sensors. Using Community Radiative Transfer Model (CRTM), developed at U. S. Joint Center for Satellite Data Assimilation (JCSDA), we found that M12 band image striping at day time over a uniform ocean was caused by the difference of sensor azimuthal angles among detectors.
C1 [Liu, Quanhua] Univ Maryland, CICS ESSIC, Joint Ctr Satellite Data Assimilat, Camp Springs, MD 20746 USA.
RP Liu, QH (reprint author), Univ Maryland, CICS ESSIC, Joint Ctr Satellite Data Assimilat, Camp Springs, MD 20746 USA.
RI Liu, Quanhua/B-6608-2008; Cao, Changyong/F-5578-2010; Weng,
Fuzhong/F-5633-2010
OI Liu, Quanhua/0000-0002-3616-351X; Weng, Fuzhong/0000-0003-0150-2179
NR 5
TC 0
Z9 0
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2153-6996
BN 978-1-4673-1159-5
J9 INT GEOSCI REMOTE SE
PY 2012
BP 1053
EP 1056
DI 10.1109/IGARSS.2012.6351370
PG 4
WC Engineering, Electrical & Electronic; Geosciences, Multidisciplinary;
Remote Sensing
SC Engineering; Geology; Remote Sensing
GA BDG99
UT WOS:000313189401067
ER
PT S
AU Nalli, NR
Barnet, CD
Gambacorta, A
Maddy, ES
Xie, H
King, TS
Joseph, E
Morris, VR
Smith, WL
AF Nalli, Nicholas R.
Barnet, Christopher D.
Gambacorta, Antonia
Maddy, Eric S.
Xie, H.
King, T. S.
Joseph, E.
Morris, V. R.
Smith, W. L.
GP IEEE
TI ON THE ANGULAR EFFECT OF RESIDUAL CLOUDS AND AEROSOLS IN CLEAR-SKY IR
WINDOW RADIANCE OBSERVATIONS
SO 2012 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS)
SE IEEE International Symposium on Geoscience and Remote Sensing IGARSS
LA English
DT Proceedings Paper
CT IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
CY JUL 22-27, 2012
CL Munich, GERMANY
SP IEEE, IEEE Geosci & Remote Sensing Soc, DLR, ESA
DE cloud contamination; aerosol contamination; zenith angle effect; PCLoS
model; slant-path; infrared radiance; clear-sky observations
ID SURFACE-LEAVING RADIANCE; REFLECTION MODEL; EMISSIVITY; TEMPERATURES;
OCEAN
AB This paper summarizes work investigating the zenith angular dependence of residual cloud and/or aerosol contamination on "clear-sky" infrared observations, which include cloud-cleared radiances and cloud-masked data, along with the implication for achieving agreement with forward calculations over the scanning range of the sensor.
C1 [Nalli, Nicholas R.; Barnet, Christopher D.; Gambacorta, Antonia; Maddy, Eric S.; Xie, H.; King, T. S.; Joseph, E.; Morris, V. R.; Smith, W. L.] NOAA NESDIS STAR, Camp Springs, MD USA.
RP Nalli, NR (reprint author), NOAA NESDIS STAR, Camp Springs, MD USA.
EM Nick.Nalli@noaa.gov
RI Maddy, Eric/G-3683-2010; Gambacorta, Antonia/E-7937-2011; Nalli,
Nicholas/F-6731-2010; Barnet, Christopher/F-5573-2010
OI Maddy, Eric/0000-0003-1151-339X; Gambacorta,
Antonia/0000-0002-2446-9132; Nalli, Nicholas/0000-0002-6914-5537;
NR 17
TC 0
Z9 0
U1 0
U2 3
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2153-6996
BN 978-1-4673-1159-5
J9 INT GEOSCI REMOTE SE
PY 2012
BP 1968
EP 1971
DI 10.1109/IGARSS.2012.6351116
PG 4
WC Engineering, Electrical & Electronic; Geosciences, Multidisciplinary;
Remote Sensing
SC Engineering; Geology; Remote Sensing
GA BDG99
UT WOS:000313189402040
ER
PT S
AU Li, XF
Yang, XF
Pichel, WG
AF Li, Xiaofeng
Yang, Xiaofeng
Pichel, William G.
GP IEEE
TI VALIDATION OF SAR-DERIVED SEA SURFACE WIND PRODUCTS
SO 2012 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS)
SE IEEE International Symposium on Geoscience and Remote Sensing IGARSS
LA English
DT Proceedings Paper
CT IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
CY JUL 22-27, 2012
CL Munich, GERMANY
SP IEEE, IEEE Geosci & Remote Sensing Soc, DLR, ESA
DE SAR; sea surface wind; buoy; scatterometer
AB In this paper, we performed a comparison of wind speed from synthetic aperture radar (SAR), scatterometer, moored buoys and numerical model. These comparisons were made in near U.S. coast regions. The results indicate that SAR-derived ocean surface wind speeds are as accurate as the scatterometer and model wind products.
C1 [Li, Xiaofeng] NOAA NESDIS, IMSG, Camp Springs, MD 20746 USA.
RP Li, XF (reprint author), NOAA NESDIS, IMSG, Camp Springs, MD 20746 USA.
RI Pichel, William/F-5619-2010; Li, Xiaofeng/B-6524-2008
OI Pichel, William/0000-0001-6332-0149; Li, Xiaofeng/0000-0001-7038-5119
NR 6
TC 0
Z9 0
U1 2
U2 2
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2153-6996
BN 978-1-4673-1159-5
J9 INT GEOSCI REMOTE SE
PY 2012
BP 2786
EP 2789
DI 10.1109/IGARSS.2012.6350854
PG 4
WC Engineering, Electrical & Electronic; Geosciences, Multidisciplinary;
Remote Sensing
SC Engineering; Geology; Remote Sensing
GA BDG99
UT WOS:000313189402236
ER
PT S
AU Gu, DZ
Houtz, D
Randa, J
Walker, DK
AF Gu, Dazhen
Houtz, Derek
Randa, James
Walker, David K.
GP IEEE
TI REALIZATION OF A STANDARD RADIOMETER FOR MICROWAVE
BRIGHTNESS-TEMPERATURE MEASUREMENTS TRACEABLE TO FUNDAMENTAL NOISE
STANDARDS
SO 2012 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS)
SE IEEE International Symposium on Geoscience and Remote Sensing IGARSS
LA English
DT Proceedings Paper
CT IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
CY JUL 22-27, 2012
CL Munich, GERMANY
SP IEEE, IEEE Geosci & Remote Sensing Soc, DLR, ESA
DE Blackbody target; brightness temperature; illumination efficiency;
microwave radiometer
AB We describe and demonstrate a standard radiometer for making microwave brightness-temperature measurements that are traceable to fundamental noise standards. The standard radiometer is based on a National Institute of Standards and Technology (NIST) waveguide radiometer for 18-26.5 GHz, fitted with an antenna to measure radiated power. The fraction of the antenna pattern subtended by the radiating target is determined by anechoic-chamber measurements in which we vary the temperature of the target and measure the received power. Sample measurement results with uncertainties are presented. The typical standard uncertainty for a brightness temperature of around 340 K is about 1 K. The approach should be extendable to other waveguide bands where NIST has radiometers and standards.
C1 [Gu, Dazhen; Houtz, Derek; Randa, James; Walker, David K.] NIST, Boulder, CO 80305 USA.
RP Gu, DZ (reprint author), NIST, Boulder, CO 80305 USA.
NR 3
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2153-6996
BN 978-1-4673-1159-5
J9 INT GEOSCI REMOTE SE
PY 2012
BP 2941
EP 2944
DI 10.1109/IGARSS.2012.6350709
PG 4
WC Engineering, Electrical & Electronic; Geosciences, Multidisciplinary;
Remote Sensing
SC Engineering; Geology; Remote Sensing
GA BDG99
UT WOS:000313189403021
ER
PT S
AU Voronovich, AG
Zavorotny, VU
AF Voronovich, Alexander G.
Zavorotny, Valery U.
GP IEEE
TI OCEAN-SCATTERED POLARIZED BISTATIC RADAR SIGNALS MODELED WITH
SMALL-SLOPE APPROXIMATION
SO 2012 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS)
SE IEEE International Symposium on Geoscience and Remote Sensing IGARSS
LA English
DT Proceedings Paper
CT IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
CY JUL 22-27, 2012
CL Munich, GERMANY
SP IEEE, IEEE Geosci & Remote Sensing Soc, DLR, ESA
DE Rough surface scattering; GNSS bistatic scattering; ocean waves;
polarization
ID THEORETICAL-MODEL; SEA-SURFACE; WAVES
AB Currently, theoretical predictions for the performance of remote-sensing applications using Global Navigation Satellite System (GNSS) reflected signals such as altimetry and scatterometry are based mostly on the geometric optics (GO) limit of the Kirchhoff (physical optics) model. For a bistatic forward-scattering regime and for a predominant, left-hand circularly polarized (LHCP) scattered component, the GO model works quite satisfactorily. However, the GO gives incorrect predictions for a right-hand circularly polarized (RHCP) scattered component. Also, it is not applicable for a scattering process at wider angles, which are affected by diffraction or Bragg scattering.
The use of the first-order SSA for calculating the LHCP scattered component of the GNSS signal was demonstrated previously [1]; however, it cannot correctly predict the RHCP scattered component and the effects of out-of-plane bistatic scattering. The second-order SSA is needed to overcome these difficulties. Here, we present results of calculations for bistatic LHCP and RHCP radar cross sections for the case of ocean surface elevations described by Gaussian statistics and the empirical wave spectrum.
C1 [Voronovich, Alexander G.; Zavorotny, Valery U.] NOAA, Earth Syst Res Lab, Div Phys Sci, Boulder, CO 80305 USA.
RP Voronovich, AG (reprint author), NOAA, Earth Syst Res Lab, Div Phys Sci, 325 Broadway, Boulder, CO 80305 USA.
NR 7
TC 1
Z9 2
U1 0
U2 5
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2153-6996
BN 978-1-4673-1159-5
J9 INT GEOSCI REMOTE SE
PY 2012
BP 3415
EP 3418
DI 10.1109/IGARSS.2012.6350687
PG 4
WC Engineering, Electrical & Electronic; Geosciences, Multidisciplinary;
Remote Sensing
SC Engineering; Geology; Remote Sensing
GA BDG99
UT WOS:000313189403138
ER
PT S
AU Liu, QH
van Delst, P
Chen, Y
Groff, D
Han, Y
Collard, A
Weng, FZ
Boukabara, SA
Derber, J
AF Liu, Quanhua
van Delst, Paul
Chen, Yong
Groff, David
Han, Yong
Collard, Andrew
Weng, Fuzhong
Boukabara, Sid-Ahmed
Derber, John
GP IEEE
TI COMMUNITY RADIATIVE TRANSFER MODEL FOR RADIANCE ASSIMILATION AND
APPLICATIONS
SO 2012 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS)
SE IEEE International Symposium on Geoscience and Remote Sensing IGARSS
LA English
DT Proceedings Paper
CT IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
CY JUL 22-27, 2012
CL Munich, GERMANY
SP IEEE, IEEE Geosci & Remote Sensing Soc, DLR, ESA
DE Community Radiative Transfer Model; data assimilation
ID EMISSIVITY MODEL; SYSTEM
AB The Community Radiative Transfer Model (CRTM), developed at U. S. Joint Center for Satellite Data Assimilation (JCSDA), has been used for infrared and microwave satellite radiance simulations and their derivatives to the surface/atmospheric parameters in data assimilation, physical retrieval, and many others. The CRTM has also been applied visible sensors and visible channel radiance/reflectance is simulated for studying aerosol and cloud effect. Together with the CRTM aerosol optical depth (AOD) module, the MODIS AOD satellite products can be assimilated and enhance air quality forecasting. This paper gives an overview of the CRTM developments and functionalities as well as its applications.
C1 [Liu, Quanhua] Univ Maryland, Joint Ctr Satellite Data Assimilat, ESSIC, Camp Springs, MD 20746 USA.
RP Liu, QH (reprint author), Univ Maryland, Joint Ctr Satellite Data Assimilat, ESSIC, Camp Springs, MD 20746 USA.
RI Boukabara, Sid Ahmed/F-5577-2010; Liu, Quanhua/B-6608-2008; Han,
Yong/F-5590-2010; Weng, Fuzhong/F-5633-2010
OI Boukabara, Sid Ahmed/0000-0002-1857-3806; Liu,
Quanhua/0000-0002-3616-351X; Han, Yong/0000-0002-0183-7270; Weng,
Fuzhong/0000-0003-0150-2179
NR 14
TC 3
Z9 3
U1 0
U2 3
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2153-6996
BN 978-1-4673-1159-5
J9 INT GEOSCI REMOTE SE
PY 2012
BP 3700
EP 3703
DI 10.1109/IGARSS.2012.6350612
PG 4
WC Engineering, Electrical & Electronic; Geosciences, Multidisciplinary;
Remote Sensing
SC Engineering; Geology; Remote Sensing
GA BDG99
UT WOS:000313189403209
ER
PT S
AU Houtz, DA
Gu, DZ
Walker, DK
Randa, J
AF Houtz, Derek A.
Gu, Dazhen
Walker, David K.
Randa, James
GP IEEE
TI AN INVESTIGATION OF ANTENNA CHARACTERIZATION TECHNIQUES IN MICROWAVE
REMOTE SENSING CALIBRATION
SO 2012 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS)
SE IEEE International Symposium on Geoscience and Remote Sensing IGARSS
LA English
DT Proceedings Paper
CT IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
CY JUL 22-27, 2012
CL Munich, GERMANY
SP IEEE, IEEE Geosci & Remote Sensing Soc, DLR, ESA
DE Antenna pattern simulation; Blackbody target; Illumination efficiency;
Microwave radiometer
AB We compare three methods of quantifying illumination efficiency (IE). The ratio IE describes the contribution of energy emitted from a blackbody target to the total energy measured at an antenna aperture in a free-space microwave calibration target radiometric measurement. Measurements are compared at three frequencies: 18 GHz, 22.5 GHz, and 26 GHz. An antenna pattern integration method is compared with a recently developed target-temperature fitting method. These two experimental approaches are also compared to a computational antenna pattern simulation. Results show that the simulation agrees with the experimental fitting method more closely at far-field distances, whereas the antenna pattern integration and experimental fitting method agree at closer distances.
C1 [Houtz, Derek A.; Gu, Dazhen; Walker, David K.; Randa, James] Natl Inst Stand & Technol, Boulder, CO 80305 USA.
RP Houtz, DA (reprint author), Natl Inst Stand & Technol, Boulder, CO 80305 USA.
NR 5
TC 0
Z9 0
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2153-6996
BN 978-1-4673-1159-5
J9 INT GEOSCI REMOTE SE
PY 2012
BP 4660
EP 4663
DI 10.1109/IGARSS.2012.6350426
PG 4
WC Engineering, Electrical & Electronic; Geosciences, Multidisciplinary;
Remote Sensing
SC Engineering; Geology; Remote Sensing
GA BDG99
UT WOS:000313189404171
ER
PT S
AU Zhu, T
Weng, FZ
AF Zhu, Tong
Weng, Fuzhong
GP IEEE
TI EVALUATION OF ATMS CROSS TRACK ASYMMETRY
SO 2012 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS)
SE IEEE International Symposium on Geoscience and Remote Sensing IGARSS
LA English
DT Proceedings Paper
CT IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
CY JUL 22-27, 2012
CL Munich, GERMANY
SP IEEE, IEEE Geosci & Remote Sensing Soc, DLR, ESA
DE ATMS; cross track asymmetry; temperature retrieval; hurricane warm core
AB ATMS cross-track asymmetric pattern is investigated in this study. It is found that the asymmetric biases are close to the simulations when the polarization alignment angles are set between 91 degrees and 92 degrees for the three window channels. A new algorithm is developed to retrieve atmospheric temperature profiles for tropical cyclone with ATMS data. The algorithm is applied for Tropical Cyclone Giovanna case study and compared with the retrievals from NOAA-15 AMSU-A observation. ATMS retrievals clearly depict the cold temperature anomalies in TC spiral rain bands and the storm warm core.
C1 [Zhu, Tong] NOAA, NESDIS, STAR, JCSDA,CIRA,CSU, Washington, DC 20230 USA.
RP Zhu, T (reprint author), NOAA, NESDIS, STAR, JCSDA,CIRA,CSU, Washington, DC 20230 USA.
RI Weng, Fuzhong/F-5633-2010
OI Weng, Fuzhong/0000-0003-0150-2179
NR 4
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2153-6996
BN 978-1-4673-1159-5
J9 INT GEOSCI REMOTE SE
PY 2012
BP 4699
EP 4702
DI 10.1109/IGARSS.2012.6350416
PG 4
WC Engineering, Electrical & Electronic; Geosciences, Multidisciplinary;
Remote Sensing
SC Engineering; Geology; Remote Sensing
GA BDG99
UT WOS:000313189404181
ER
PT S
AU Li, XF
Zhang, JA
Yang, XF
Pichel, WG
DeMaria, M
Long, D
Li, ZW
AF Li, Xiaofeng
Zhang, Jun A.
Yang, Xiaofeng
Pichel, William G.
DeMaria, Mark
Long, David
Li, Ziwei
GP IEEE
TI OCEAN SURFACE RESPONSE TO HURRICANES OBSERVED BY SAR
SO 2012 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS)
SE IEEE International Symposium on Geoscience and Remote Sensing IGARSS
LA English
DT Proceedings Paper
CT IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
CY JUL 22-27, 2012
CL Munich, GERMANY
SP IEEE, IEEE Geosci & Remote Sensing Soc (GRSS), DLR, ESA
DE SAR; hurricane; morphology; rolls
ID RADAR
AB In this study, we analyze 83 synthetic aperture radar (SAR) images including 73 from RADARSAT-1 and 10 from ENVISAT that contain tropical cyclone eye information. We also obtain ancillary tropical cyclone intensity information from NOAA National Hurricane Center and Japan Meteorological Agency. Based on this information, we generate tropical cyclone morphology statistics. We found that majority of the hurricanes are in wavenumber 1 and 2 category. Marine atmospheric boundary layer rolls can also be extracted from SAR image.
C1 [Li, Xiaofeng] NOAA, NESDIS, IMSG, Camp Springs, MD USA.
RP Li, XF (reprint author), NOAA, NESDIS, IMSG, Camp Springs, MD USA.
RI DeMaria, Mark/F-5583-2010; Pichel, William/F-5619-2010; Long,
David/K-4908-2015; Li, Xiaofeng/B-6524-2008
OI Pichel, William/0000-0001-6332-0149; Long, David/0000-0002-1852-3972;
Li, Xiaofeng/0000-0001-7038-5119
NR 6
TC 1
Z9 1
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2153-6996
BN 978-1-4673-1159-5
J9 INT GEOSCI REMOTE SE
PY 2012
BP 5180
EP 5183
PG 4
WC Engineering, Electrical & Electronic; Geosciences, Multidisciplinary;
Remote Sensing
SC Engineering; Geology; Remote Sensing
GA BDG99
UT WOS:000313189405048
ER
PT S
AU Cao, CY
Uprety, S
Blonski, S
AF Cao, Changyong
Uprety, Sirish
Blonski, Slawomir
GP IEEE
TI ESTABLISHING RADIOMETRIC CONSISTENCY AMONG VIIRS, MODIS, AND AVHRR USING
SNO AND SNOX METHODS
SO 2012 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS)
SE IEEE International Symposium on Geoscience and Remote Sensing IGARSS
LA English
DT Proceedings Paper
CT IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
CY JUL 22-27, 2012
CL Munich, GERMANY
SP IEEE, IEEE Geosci & Remote Sensing Soc, DLR, ESA
DE VIIRS; SNPP; calibration; SNOx; intercompairison
AB The launch of the SNPP with VIIRS signifies a new era of continued operational global earth observations with moderate resolutions. In the calibration/validation of VIIRS, it is essential to ensure that its measurements are consistent with those from previous instruments such as MODIS and AVHRR because longterm study of the earth relies on consistent satellite measurements with decadal data sets. This study focuses on the use of an extension of the traditional simultaneous nadir overpass (SNO) approach for performance evaluation and intercomparison of the VIIRS instrument with MODIS and AVHRR. Unlike SNO approach which is limited to polar regions only, the extended SNO (SNOx) provides an opportunity to compare satellite instruments at low latitudes over wide dynamic ranges. In addition, a new Geolocation Matching Method (GSM) method is developed to match a full VIIRS scene to MODIS. This tool uses an optimized algorithm with reduced run time and has been primarily used to analyze the intersatellite radiometric consistency and geolocation accuracy.
C1 [Cao, Changyong] NOAA, Ctr Satellite Applicat & Res, NESDIS, College Pk, MD USA.
RP Cao, CY (reprint author), NOAA, Ctr Satellite Applicat & Res, NESDIS, College Pk, MD USA.
RI Cao, Changyong/F-5578-2010
NR 6
TC 1
Z9 1
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2153-6996
BN 978-1-4673-1159-5
J9 INT GEOSCI REMOTE SE
PY 2012
BP 6928
EP 6931
DI 10.1109/IGARSS.2012.6352569
PG 4
WC Engineering, Electrical & Electronic; Geosciences, Multidisciplinary;
Remote Sensing
SC Engineering; Geology; Remote Sensing
GA BDG99
UT WOS:000313189406225
ER
PT S
AU Zavorotny, V
Rodriguez-Alvarez, N
Akos, D
Camps, A
AF Zavorotny, Valery
Rodriguez-Alvarez, Nereida
Akos, Dennis
Camps, Adriano
GP IEEE
TI AIRBORNE WIND RETRIEVAL USING GPS DELAY-DOPPLER MAPS
SO 2012 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS)
SE IEEE International Symposium on Geoscience and Remote Sensing IGARSS
LA English
DT Proceedings Paper
CT IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
CY JUL 22-27, 2012
CL Munich, GERMANY
SP IEEE, IEEE Geosci & Remote Sensing Soc, DLR, ESA
DE Bistatic radar; global navigation satellite systems (GNSS); global
positioning system (GPS); reflected GPS; delay-Doppler mapping; ocean
surface; oceanography; scatterometry
ID SCATTERING
AB Global Navigation Satellite System Reflectometry (GNSS-R) has emerged recently as a promising remote sensing tool to retrieve various geophysical parameters of Earth's surface. GNSS-reflected signals, after being received and processed by the airborne or space-borne receiver, are available as delay correlation waveforms or as delay-Doppler maps. In the case of a rough ocean surface, those characteristics can be related to the RMS of L-band limited slopes of the surface waves, and from there to the surface wind speed. The raw GNSS-reflected signal can be processed either in real time by the receiver, or can be recorded and stored onboard and post-processed in a laboratory. The latter approach leveraging a software receiver allows more flexibility while processing the raw data. This work analyzes Delay Doppler Maps (DDM) obtained as a result of processing of the data collected by the GPS data logger/software receiver onboard the NOAA Gulfstream-IV jet aircraft. Thereafter, the DDMs were used to retrieve surface wind speed employing several different metrics that characterize the DDM extent in the Doppler frequency-delay domain. In contrast to previous works in which winds have been retrieved by fitting the theoretically modeled curves into measured correlation waveforms, here we do not rely on any model for the determination. Instead, the approach is based on a linear regression between DDMs observables and the wind speeds obtained in simultaneous GPS dropsonde measurements.
C1 [Zavorotny, Valery; Rodriguez-Alvarez, Nereida] NOAA, Earth Syst Res Lab, Div Phys Sci, Boulder, CO 80305 USA.
RP Zavorotny, V (reprint author), NOAA, Earth Syst Res Lab, Div Phys Sci, 325 Broadway, Boulder, CO 80305 USA.
RI Camps, Adriano/D-2592-2011
OI Camps, Adriano/0000-0002-9514-4992
NR 4
TC 0
Z9 0
U1 0
U2 4
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2153-6996
BN 978-1-4673-1159-5
J9 INT GEOSCI REMOTE SE
PY 2012
BP 7075
EP 7078
DI 10.1109/IGARSS.2012.6352033
PG 4
WC Engineering, Electrical & Electronic; Geosciences, Multidisciplinary;
Remote Sensing
SC Engineering; Geology; Remote Sensing
GA BDG99
UT WOS:000313189407005
ER
PT J
AU Santiago, M
Vivanco, MG
Stein, AF
AF Santiago, Manuel
Garcia Vivanco, Marta
Stein, Ariel F.
TI SO2 effect on secondary organic aerosol from a mixture of anthropogenic
VOCs: experimental and modelled results
SO INTERNATIONAL JOURNAL OF ENVIRONMENT AND POLLUTION
LA English
DT Article
DE air quality modelling; SOA formation; acidic effect; CMAQ; CHIMERE
ID BENZENE; CHAMBER; TOLUENE
AB The effect of SO2 in the photooxidation of a mixture of anthropogenic precursors is studied. Four experiments are carried out in the EUPHORE outdoor chamber, adding different initial SO2 concentrations in each experiment. The experimental secondary organic aerosol (SOA) obtained in the experiments is compared with the aerosol simulated by two air quality models (CMAQ and CHIMERE) under the same initial conditions. A simplified version of the models is designed in order to consider the closed system of the chamber, where only gas phase chemistry and aerosol formation take place. While the experimental results show a clear increase of the aerosol formed in the presence of increasing SO2 concentrations, the models do not consider this enhancement in the simulations. The behaviour of the models points out the need of a way to implement this effect on anthropogenic secondary organic aerosol.
C1 [Santiago, Manuel; Garcia Vivanco, Marta] CIEMAT, Dept Medio Ambiente, Unidad Modelizac & Ecotoxicidad Contaminac Atmosf, E-28040 Madrid, Spain.
[Stein, Ariel F.] NOAA, Air Resources Lab, Silver Spring Metro Ctr 3, Silver Spring, MD 20910 USA.
RP Santiago, M (reprint author), CIEMAT, Dept Medio Ambiente, Unidad Modelizac & Ecotoxicidad Contaminac Atmosf, Av Complutense 22, E-28040 Madrid, Spain.
EM manuel.santiago@ciemat.es; m.garcia@ciemat.es; ariel.stein@noaa.gov
RI Stein, Ariel/G-1330-2012; Stein, Ariel F/L-9724-2014; Vivanco,
Marta/L-9816-2014
OI Stein, Ariel F/0000-0002-9560-9198; Vivanco, Marta/0000-0002-5828-1859
FU Spanish Science and Innovation Ministry [CGL2008 02260/CLI]; Spanish
Ministry of Environment
FX This study has been financed by the Spanish Science and Innovation
Ministry (CGL2008 02260/CLI) and the Spanish Ministry of Environment. We
gratefully acknowledge all the EUPHORE team members.
NR 10
TC 3
Z9 3
U1 3
U2 21
PU INDERSCIENCE ENTERPRISES LTD
PI GENEVA
PA WORLD TRADE CENTER BLDG, 29 ROUTE DE PRE-BOIS, CASE POSTALE 856, CH-1215
GENEVA, SWITZERLAND
SN 0957-4352
J9 INT J ENVIRON POLLUT
JI Int. J. Environ. Pollut.
PY 2012
VL 50
IS 1-4
SI SI
BP 224
EP 233
PG 10
WC Environmental Sciences
SC Environmental Sciences & Ecology
GA 091SQ
UT WOS:000315070500022
ER
PT J
AU Bai, XZ
Wang, J
AF Bai, Xuezhi
Wang, Jia
TI Atmospheric teleconnection patterns associated with severe and mild ice
cover on the Great Lakes, 1963-2011
SO WATER QUALITY RESEARCH JOURNAL OF CANADA
LA English
DT Article
DE Arctic Oscillation; atmospheric teleconnection; El Nino-Southern
Oscillation; Great Lakes; ice cover; North Atlantic Oscillation
ID NORTHERN-HEMISPHERE WINTER; GEOPOTENTIAL HEIGHT; ARCTIC OSCILLATION;
CLIMATE; TEMPERATURE; SEA; VARIABILITY; REGION; ENSO
AB Atmospheric teleconnection circulation patterns associated with severe and mild ice cover over the Great Lakes are investigated using the composite analysis of lake ice data and National Center of Environmental Prediction (NCEP) reanalysis data for the period 1963-2011. The teleconnection pattern associated with the severe ice cover is the combination of a negative North Atlantic Oscillation (NAO) or Arctic Oscillation (AO) and negative phase of Pacific/North America (PNA) pattern, while the pattern associated with the mild ice cover is the combination of a positive PNA (or an El Nino) and a positive phase of the NAO/AO. These two extreme ice conditions are associated with the North American ridge-trough variations. The intensified ridge-trough system produces a strong northwest-to-southeast tilted ridge and trough and increases the anomalous northwesterly wind, advecting cold, dry Arctic air to the Great Lakes. The weakened ridge-trough system produces a flattened ridge and trough, and promotes a climatological westerly wind, advecting warm, dry air from western North America to the Great Lakes. Although ice cover for all the individual lakes responds roughly linearly and symmetrically to both phases of the NAO/AO, and roughly nonlinearly and asymmetrically to El Nino and La Nina events, the overall ice cover response to individual NAO/AO or Nino3.4 index is not statistically significant. The combined NAO/AO and Nino3.4 indices can be used to reliably project severe ice cover during the simultaneous -NAO/AO and La Nina events, and mild ice cover during the simultaneous +NAO/AO and El Nino events.
C1 [Bai, Xuezhi] Univ Michigan, Cooperat Inst Limnol & Ecosyst Res, Ann Arbor, MI 48108 USA.
[Wang, Jia] NOAA, Great Lakes Environm Res Lab, Ann Arbor, MI 48108 USA.
RP Wang, J (reprint author), NOAA, Great Lakes Environm Res Lab, 4840 S State Rd, Ann Arbor, MI 48108 USA.
EM Jia.Wang@noaa.gov
OI Wang, Jia/0000-0003-4154-9721
FU Great Lakes Restoration Initiative (GLRI) from EPA/NOAA
FX We acknowledge the support of Great Lakes Restoration Initiative (GLRI)
funds from EPA/NOAA. NCEP reanalysis data were provided by the
NOAA/OAR/ESRL PSD, Boulder, Colorado, USA, from their website at
http://www.cdc.noaa.gov/. Nino3.4 index and NAO index was provided by
NOAA/CPC, from their website at
http://www.cpc.noaa.gov/products/precip/CWlink/. We also appreciate the
help of Drs David Schwab and Brent Lofgren for constructive comments and
discussion on the first draft, and Cathy Darnell for editing this paper.
This is GLERL contribution 1641.
NR 32
TC 3
Z9 4
U1 3
U2 9
PU IWA PUBLISHING
PI LONDON
PA ALLIANCE HOUSE, 12 CAXTON ST, LONDON SW1H0QS, ENGLAND
SN 1201-3080
J9 WATER QUAL RES J CAN
JI Water Qual. Res. J. Canada
PY 2012
VL 47
IS 3-4
BP 421
EP 435
DI 10.2166/wqrjc.2012.009
PG 15
WC Water Resources
SC Water Resources
GA 088FK
UT WOS:000314819000017
ER
PT B
AU Liu, CW
Singhal, A
Wijesekera, D
AF Liu, Changwei
Singhal, Anoop
Wijesekera, Duminda
GP IEEE
TI Mapping Evidence Graphs to Attack Graphs
SO 2012 IEEE INTERNATIONAL WORKSHOP ON INFORMATION FORENSICS AND SECURITY
(WIFS)
LA English
DT Proceedings Paper
CT IEEE International Workshop on Information Forensics and Security
CY DEC 02-05, 2012
CL Tenerife, SPAIN
SP IEEE, IEEE Signal Proc Soc, IEEE Informat Forens & Secur Tech Comm, Technicolor, HP, IEEE Biometr Council, REWIND, Gradient-LIFTGATE, AtlantTIC, Mitsubishi Elect Res Lab, Univ La Laguna, Univ Vigo, Tenerife Convent Bur, US AF Res Lab, AF Off Sci Res, European Off Aerosp Res & Dev, Microsoft Res
DE attack graphs; evidence graphs; attack success probabilities; evidence
probabilities; mapping algorithm
AB Attack graphs compute potential attack paths from a system configuration and known vulnerabilities of a system. Evidence graphs model intrusion evidence and dependencies among them. In this paper, we show how to map evidence graphs to attack graphs. This mapping is useful for application of attack graphs and evidence graphs for forensic analysis. In addition to helping to refine attack graphs by using known sets of dependent attack evidence, important probabilistic information contained in evidence graphs can be used to compute or refine potential attack success probabilities obtained from repositories like CVSS. Conversely, attack graphs can be used to add missing evidence or remove irrelevant evidence trails to build a complete evidence graph. We illustrated the mapping by using a database attack as a case study.
C1 [Liu, Changwei; Wijesekera, Duminda] George Mason Univ, Dept Comp Sci, Fairfax, VA 22030 USA.
[Singhal, Anoop] Natl Inst Stand & Technol, Gaithersburg, MD USA.
RP Liu, CW (reprint author), George Mason Univ, Dept Comp Sci, Fairfax, VA 22030 USA.
EM cliu6@gmu.edu; anoop.singhal@nist.gov; dwijesek@gmu.edu
FU US Air Force Office of Scientific Research [FA9550-09-10421]
FX This material is based on work supported by the US Air Force Office of
Scientific Research under grant FA9550-09-10421, and we would like to
thank the anonymous reviewers for their valuable feedback and
suggestions. This paper is not subject to copyright in the United
States. Commercial products are identified in order to adequately
specify certain procedures. In no case does such identification imply
recommendation or endorsement by the National Institute of Standards and
Technology, nor does it imply that the identified products are
necessarily the best available for the purpose.
NR 17
TC 2
Z9 2
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-4673-2285-0; 978-1-4673-2286-7
PY 2012
BP 121
EP 126
PG 6
WC Computer Science, Theory & Methods; Engineering, Electrical & Electronic
SC Computer Science; Engineering
GA BDQ70
UT WOS:000314476200021
ER
PT S
AU Fortier, TM
Quinlan, F
Taylor, J
Hati, A
Nelson, C
Lemke, N
Ludlow, A
Liebrandt, D
Rosenband, T
Howe, D
Fu, Y
Campbell, J
Oates, C
Diddams, S
AF Fortier, Tara M.
Quinlan, Franklyn
Taylor, Jennifer
Hati, Archita
Nelson, Craig
Lemke, Nathan
Ludlow, Andrew
Liebrandt, David
Rosenband, Till
Howe, David
Fu, Yang
Campbell, Joe
Oates, Chris
Diddams, Scott
GP IEEE
TI High Spectral Purity Microwave Generation via Optical Division
SO 2012 IEEE PHOTONICS CONFERENCE (IPC)
SE IEEE Photonics Conference
LA English
DT Proceedings Paper
CT 25th IEEE Photonics Conference (IPC)
CY SEP 23-27, 2012
CL Burlingame, CA
SP IEEE, Kotura, Rockley Grp, Intel, Cisco, Oracle Labs, Corning, Google, Luxtera, Fiber Chip, Rambus, Analog Devices, PMC, Sinoora, Soitec, Photon Design, Nat Photon, Commun Technol Roadmap, Simgui
AB We generate 10 GHz microwave signals from high quality factor (Q similar to 10(11)) optical resonators via optical frequency division. The demonstrated phase noise is comparable to or better than that obtained via cryogenic systems for timescales < 1s.
C1 [Fortier, Tara M.; Quinlan, Franklyn; Taylor, Jennifer; Hati, Archita; Nelson, Craig; Lemke, Nathan; Ludlow, Andrew; Liebrandt, David; Rosenband, Till; Howe, David; Fu, Yang; Campbell, Joe; Oates, Chris; Diddams, Scott] Natl Inst Stand & Technol, Boulder, CO 80305 USA.
RP Fortier, TM (reprint author), Natl Inst Stand & Technol, 325 Broadway,MS 847, Boulder, CO 80305 USA.
EM fortier@boulder.nist.gov; sdiddams@boulder.nist.gov
RI Diddams, Scott/L-2819-2013; Lemke, Nathan/L-9059-2013
OI Lemke, Nathan/0000-0003-4165-0715
NR 7
TC 0
Z9 0
U1 0
U2 2
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2374-0140
BN 978-1-4577-0733-9
J9 IEEE PHOTON CONF
PY 2012
BP 10
EP 11
PG 2
WC Engineering, Electrical & Electronic; Optics
SC Engineering; Optics
GA BDD75
UT WOS:000312865000006
ER
PT S
AU Quinlan, F
Fortier, TM
Jiang, H
Hati, A
Nelson, C
Fu, Y
Campbell, J
Diddams, SA
AF Quinlan, F.
Fortier, T. M.
Jiang, H.
Hati, A.
Nelson, C.
Fu, Y.
Campbell, J.
Diddams, S. A.
GP IEEE
TI Shot Noise Correlations in the Detection of Ultrashort Optical Pulses
SO 2012 IEEE PHOTONICS CONFERENCE (IPC)
SE IEEE Photonics Conference
LA English
DT Proceedings Paper
CT 25th IEEE Photonics Conference (IPC)
CY SEP 23-27, 2012
CL Burlingame, CA
SP IEEE, Kotura, Rockley Grp, Intel, Cisco, Oracle Labs, Corning, Google, Luxtera, Fiber Chip, Rambus, Analog Devices, PMC, Sinoora, Soitec, Photon Design, Nat Photon, Commun Technol Roadmap, Simgui
DE microwave photonics; phase noise; shot noise; ultrafast optics
AB The time-varying nature of optical pulses produces correlations in the photocurrent shot noise spectrum. These correlations are exploited to produce a phase noise floor of -177 dBc/Hz on a 10 GHz photonically generated microwave signal.
C1 [Quinlan, F.; Fortier, T. M.; Jiang, H.; Hati, A.; Nelson, C.; Diddams, S. A.] Natl Inst Stand & Technol, Boulder, CO 80305 USA.
[Campbell, J.] Univ Virginia, Dept Elect Engn, Charlottesville, VA USA.
RP Quinlan, F (reprint author), Natl Inst Stand & Technol, Boulder, CO 80305 USA.
EM fquinlan@boulder.nist.gov; sdiddams@boulder.nist.gov
RI jiang, haifeng/F-1080-2011; Diddams, Scott/L-2819-2013
FU NIST
FX Financial support is provided by NIST. Contribution of an agency of the
US government, not subject to copyright in the US.
NR 6
TC 0
Z9 0
U1 0
U2 4
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2374-0140
BN 978-1-4577-0733-9
J9 IEEE PHOTON CONF
PY 2012
BP 14
EP +
PG 2
WC Engineering, Electrical & Electronic; Optics
SC Engineering; Optics
GA BDD75
UT WOS:000312865000008
ER
PT S
AU Del'Haye, P
Papp, S
Diddams, S
AF Del'Haye, Pascal
Papp, Scott
Diddams, Scott
GP IEEE
TI Mechanical Stabilization of Frequency Combs From Laser Machined
Microrod-Resonators
SO 2012 IEEE PHOTONICS CONFERENCE (IPC)
SE IEEE Photonics Conference
LA English
DT Proceedings Paper
CT 25th IEEE Photonics Conference (IPC)
CY SEP 23-27, 2012
CL Burlingame, CA
SP IEEE, Kotura, Rockley Grp, Intel, Cisco, Oracle Labs, Corning, Google, Luxtera, Fiber Chip, Rambus, Analog Devices, PMC, Sinoora, Soitec, Photon Design, Nat Photon, Commun Technol Roadmap, Simgui
ID GENERATION
AB We introduce piezo-electric mechanical control and stabilization of frequency combs produced in novel, laser-machined microresonators. The residual and absolute 1-second-stabilities of the 33 GHz comb spacing are 5x10(-14) and <= 1.4x10(-12), respectively.
C1 [Del'Haye, Pascal; Papp, Scott; Diddams, Scott] NIST, Boulder, CO 80305 USA.
RP Del'Haye, P (reprint author), NIST, 325 Broadway, Boulder, CO 80305 USA.
RI Diddams, Scott/L-2819-2013; Del'Haye, Pascal/G-2588-2016
OI Del'Haye, Pascal/0000-0002-6517-6942
NR 11
TC 0
Z9 0
U1 0
U2 2
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2374-0140
BN 978-1-4577-0733-9
J9 IEEE PHOTON CONF
PY 2012
BP 64
EP 65
PG 2
WC Engineering, Electrical & Electronic; Optics
SC Engineering; Optics
GA BDD75
UT WOS:000312865000033
ER
PT S
AU Ferdous, F
Miao, HX
Wang, PH
Leaird, DE
Srinivasan, K
Chen, L
Aksyuk, V
Weiner, AM
AF Ferdous, Fahmida
Miao, Houxun
Wang, Pei-Hsun
Leaird, Daniel E.
Srinivasan, Kartik
Chen, Lei
Aksyuk, Vladimir
Weiner, Andrew M.
GP IEEE
TI On-Chip Microresonator Frequency Combs Formation: Observation of Comb
Line Dependent Mutual Coherence
SO 2012 IEEE PHOTONICS CONFERENCE (IPC)
SE IEEE Photonics Conference
LA English
DT Proceedings Paper
CT 25th IEEE Photonics Conference (IPC)
CY SEP 23-27, 2012
CL Burlingame, CA
SP IEEE, Kotura, Rockley Grp, Intel, Cisco, Oracle Labs, Corning, Google, Luxtera, Fiber Chip, Rambus, Analog Devices, PMC, Sinoora, Soitec, Photon Design, Nat Photon, Commun Technol Roadmap, Simgui
ID GENERATION
AB We use pulse shaper to investigate frequency combs generation in microresonators in the temporal domain. We observe that different groups of comb lines have different mutual coherence and suggest a model for comb formation.
C1 [Ferdous, Fahmida; Wang, Pei-Hsun; Leaird, Daniel E.; Weiner, Andrew M.] Purdue Univ, Sch Elect & Comp Engn, 465 Northwestern Ave, W Lafayette, IN 47907 USA.
[Miao, Houxun; Srinivasan, Kartik; Chen, Lei; Aksyuk, Vladimir] Natl Inst Stand & Technol, Ctr Nanoscale Sci & Technol, Gaithersburg, MD 20899 USA.
[Wang, Pei-Hsun] Univ Maryland, Nanocenter, College Pk, MD 20742 USA.
[Weiner, Andrew M.] Purdue Univ, Birck Nanotechnol Ctr, Indiana, PA 47907 USA.
RP Ferdous, F (reprint author), Purdue Univ, Sch Elect & Comp Engn, 465 Northwestern Ave, W Lafayette, IN 47907 USA.
EM fferdous@purdue.edu
OI Aksyuk, Vladimir/0000-0002-9653-4722
NR 5
TC 0
Z9 0
U1 0
U2 3
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2374-0140
BN 978-1-4577-0733-9
J9 IEEE PHOTON CONF
PY 2012
BP 68
EP +
PG 2
WC Engineering, Electrical & Electronic; Optics
SC Engineering; Optics
GA BDD75
UT WOS:000312865000035
ER
PT S
AU Wang, PH
Ferdous, F
Miao, HX
Wang, J
Leaird, DE
Srinivasan, K
Chen, L
Aksyuk, V
Weiner, AM
AF Wang, Pei-Hsun
Ferdous, Fahmida
Miao, Houxun
Wang, Jian
Leaird, Daniel E.
Srinivasan, Kartik
Chen, Lei
Aksyuk, Vladimir
Weiner, Andrew M.
GP IEEE
TI Optical Communication Test of Multiple-Wavelength Comb Source from
Silicon Nitride Microresonators
SO 2012 IEEE PHOTONICS CONFERENCE (IPC)
SE IEEE Photonics Conference
LA English
DT Proceedings Paper
CT 25th IEEE Photonics Conference (IPC)
CY SEP 23-27, 2012
CL Burlingame, CA
SP IEEE, Kotura, Rockley Grp, Intel, Cisco, Oracle Labs, Corning, Google, Luxtera, Fiber Chip, Rambus, Analog Devices, PMC, Sinoora, Soitec, Photon Design, Nat Photon, Commun Technol Roadmap, Simgui
DE optical resonators; silicon-chip-based devices
ID FREQUENCY COMBS; CHIP
AB We evaluate the optical communication performance of individual comb lines generated in silicon nitride microresonators. A high coherence mode yields error-free communications at 10 Gb/s, while a partially coherent mode results in closed eye diagrams.
C1 [Wang, Pei-Hsun; Ferdous, Fahmida; Wang, Jian; Leaird, Daniel E.; Weiner, Andrew M.] Purdue Univ, Sch Elect & Comp Engn, 465 Northwestern Ave, W Lafayette, IN 47907 USA.
[Miao, Houxun; Srinivasan, Kartik; Chen, Lei; Aksyuk, Vladimir] Natl Inst Stand & Technol, Ctr Nanoscale Sci & Technol, Gaithersburg, MD 20899 USA.
[Miao, Houxun] Univ Maryland, Nanocenter, College Pk, MD 20742 USA.
[Wang, Jian; Weiner, Andrew M.] Purdue Univ, Birck Nanotechnol Ctr, Indiana, PA 47907 USA.
RP Wang, PH (reprint author), Purdue Univ, Sch Elect & Comp Engn, 465 Northwestern Ave, W Lafayette, IN 47907 USA.
EM amw@purdue.edu
OI Aksyuk, Vladimir/0000-0002-9653-4722
NR 8
TC 0
Z9 0
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2374-0140
BN 978-1-4577-0733-9
J9 IEEE PHOTON CONF
PY 2012
BP 70
EP +
PG 2
WC Engineering, Electrical & Electronic; Optics
SC Engineering; Optics
GA BDD75
UT WOS:000312865000036
ER
PT S
AU Srinivasan, K
Ates, S
Agha, I
Davanco, M
Rakher, M
Badolato, A
AF Srinivasan, Kartik
Ates, Serkan
Agha, Imad
Davanco, Marcelo
Rakher, Matthew
Badolato, Antonio
GP IEEE
TI Efficient generation and wavelength conversion of single photons from
quantum nanophotonic devices
SO 2012 IEEE PHOTONICS CONFERENCE (IPC)
SE IEEE Photonics Conference
LA English
DT Proceedings Paper
CT 25th IEEE Photonics Conference (IPC)
CY SEP 23-27, 2012
CL Burlingame, CA
SP IEEE, Kotura, Rockley Grp, Intel, Cisco, Oracle Labs, Corning, Google, Luxtera, Fiber Chip, Rambus, Analog Devices, PMC, Sinoora, Soitec, Photon Design, Nat Photon, Commun Technol Roadmap, Simgui
ID DOT
AB Single photon sources based on a self-assembled quantum dot in nanophotonic waveguides, gratings, and cavities are interfaced with nonlinear media and electro-optic modulators to demonstrate quantum frequency conversion and amplitude modulation of single photon states.
C1 [Srinivasan, Kartik; Ates, Serkan; Agha, Imad; Davanco, Marcelo; Rakher, Matthew] NIST, Ctr Nanoscale Sci & Technol, Gaithersburg, MD 20899 USA.
[Ates, Serkan; Agha, Imad; Davanco, Marcelo] Univ Maryland, Maryland Nanocenter, College Pk, MD 20742 USA.
[Badolato, Antonio] Univ Rochester, Dept Phys & Astron, Rochester, NY 14627 USA.
RP Srinivasan, K (reprint author), NIST, Ctr Nanoscale Sci & Technol, Gaithersburg, MD 20899 USA.
RI Ates, Serkan/M-6083-2014
NR 21
TC 0
Z9 0
U1 0
U2 4
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2374-0140
BN 978-1-4577-0733-9
J9 IEEE PHOTON CONF
PY 2012
BP 606
EP +
PG 2
WC Engineering, Electrical & Electronic; Optics
SC Engineering; Optics
GA BDD75
UT WOS:000312865000302
ER
PT S
AU Weihs, G
Jayakumar, H
Predojevic, A
Huber, T
Kauten, T
Solomon, GS
AF Weihs, G.
Jayakumar, H.
Predojevic, A.
Huber, T.
Kauten, T.
Solomon, G. S.
GP IEEE
TI Deterministic photon cascade from resonant two-photon excitation of a
single InAs quantum dot
SO 2012 IEEE PHOTONICS CONFERENCE (IPC)
SE IEEE Photonics Conference
LA English
DT Proceedings Paper
CT 25th IEEE Photonics Conference (IPC)
CY SEP 23-27, 2012
CL Burlingame, CA
SP IEEE, Kotura, Rockley Grp, Intel, Cisco, Oracle Labs, Corning, Google, Luxtera, Fiber Chip, Rambus, Analog Devices, PMC, Sinoora, Soitec, Photon Design, Nat Photon, Commun Technol Roadmap, Simgui
AB We demonstrate the coherent creation of a biexciton in an InAs/GaAs quantum dot embedded in a planar micro-cavity through resonant two-photon excitation. This results in laser scattering-free cascaded single photons with excellent two-photon suppression. We also observe Rabi oscillations, Ramsey interference and high indistinguishability. This scheme can be used to generate entangled photon pairs and heralded single photons.
C1 [Weihs, G.; Jayakumar, H.; Predojevic, A.; Huber, T.; Kauten, T.] Univ Innsbruck, Inst Expt Phys, Technikerstrae 25, A-6020 Innsbruck, Austria.
[Solomon, G. S.] Natl Inst Stand & Technol, Gaithersburg, MD 20899 USA.
RP Weihs, G (reprint author), Univ Innsbruck, Inst Expt Phys, Technikerstrae 25, A-6020 Innsbruck, Austria.
RI Predojevic, Ana/D-5884-2014; Weihs, Gregor/G-2564-2013
OI Predojevic, Ana/0000-0003-1840-0830; Weihs, Gregor/0000-0003-2260-3008
FU European Research Council, project EnSeNa; Austrian Science Fund ( FWF)
[M- 1243]; Canadian Institute for Advanced Research through its Quantum
Information Processing program
FX This work was funded by the European Research Council, project EnSeNa,
the Austrian Science Fund ( FWF), project M- 1243, and the Canadian
Institute for Advanced Research through its Quantum Information
Processing program.
NR 6
TC 0
Z9 0
U1 0
U2 3
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2374-0140
BN 978-1-4577-0733-9
J9 IEEE PHOTON CONF
PY 2012
BP 674
EP +
PG 2
WC Engineering, Electrical & Electronic; Optics
SC Engineering; Optics
GA BDD75
UT WOS:000312865000334
ER
PT J
AU Garrison, EG
McFall, G
Cherkinsky, A
Noakes, SE
AF Garrison, Ervan G.
McFall, Greg
Cherkinsky, Alexander
Noakes, Scott E.
TI Discovery of a Pleistocene mysticete whale, Georgia Bight (USA)
SO PALAEONTOLOGIA ELECTRONICA
LA English
DT Article
DE Whale; Mysticete; Pleistocene; Georgia Bight
ID PHYLOGENETIC-RELATIONSHIPS; BALEEN WHALES; FOSSIL; DNA
AB Subfossil evidence, including a nearly complete dentary (similar to 77%) ( left mandible) and two badly eroded vertebrae, of a mysticete whale, were recovered, underwater, from an in situ context, in the Georgia Bight, 30 km offshore St. Catherine's Island, Georgia. The discovery of the mandible was initially made in 2006 but excavation was not completed until the summer of 2008. Two badly preserved vertebrae were found lying nearby having eroded from the same outcrop as the dentary. The two vertebrae were dated but not analyzed in this report. Direct dating of the subfossils, with the Accelerator Mass Spectometry radiocarbon technique (AMS), using bioapatite, rather than collagen, suggests a common age range for the skeletal materials, 34,000 to 37,000 ka, but it's speculative to assign these remains to the same animal or, for that matter, the same taxon. The ages determined for the subfossils are in good agreement with the age of the geological deposit, a shell coquina, as previously determined by AMS dating of inclusions and by direct dating of the sediments using Optical Stimulated Luminescence (OSL) dating. Additionally, amino acid raceminization (AAR) ages were obtained for the coquina. Our comparative analysis supports a diagnosis of a dentary of a mysticete whale. Further comparison of preserved morphological characters with those for mysticete mandibles, support a further diagnosis as balaenopterid or eschrichtiid. Coupled with recent, Pleistocene aged discoveries, in Europe, in the North Sea basin, these remains could provide well-dated, new, North American evidence for the extirpated gray whale in the Atlantic basin of the Quaternary.
C1 [Garrison, Ervan G.] Univ Georgia UGA, Dept Geol, Athens, GA 30602 USA.
[McFall, Greg] NOAA, Grays Reef Natl Marine Sanctuary, Savannah, GA 31411 USA.
[Cherkinsky, Alexander; Noakes, Scott E.] Univ Georgia, CAIS, Athens, GA 30602 USA.
RP Garrison, EG (reprint author), Univ Georgia UGA, Dept Geol, Athens, GA 30602 USA.
EM egarriso@uga.edu; greg.mcfall@noaa.gov; acherkin@uga.edu;
snoakes@uga.edu
NR 32
TC 0
Z9 0
U1 0
U2 10
PU COQUINA PRESS
PI AMHERST
PA C/O WHITEY HAGADORN, EXECUTIVE EDITOR, AMHERST COLLEGE, DEPT GEOLOGY,
AMHERST, MA 01002 USA
SN 1935-3952
J9 PALAEONTOL ELECTRON
JI Palaeontol. electron.
PY 2012
VL 15
IS 3
AR 31A
PG 10
WC Paleontology
SC Paleontology
GA 084BG
UT WOS:000314510300004
ER
PT J
AU Whitall, D
Mason, A
Pait, A
AF Whitall, David
Mason, Andrew
Pait, Anthony
TI Nutrient Dynamics in Coastal Lagoons and Marine Waters of Vieques,
Puerto Rico
SO TROPICAL CONSERVATION SCIENCE
LA English
DT Article
DE nutrients; corals; eutrophication; Caribbean
ID NITROGEN; CORALS
AB Determining the efficacy of efforts to conserve natural systems requires that environmental baseline data exist; without such baseline data, it is impossible to determine if management actions are working. This study presents water quality baseline data (nutrients) for the coastal waters of the island of Vieques, Puerto Rico. As the island's economy shifts more towards tourism, these data can be used to verify that conservation efforts to preserve the ecology of the coastal waters are succeeding. Surface waters were sampled at 40 sites, selected using a stratified random sampling design, on 7 occasions between July 2007 and March 2008. Nutrient concentrations were similar to what has been observed in other systems in Puerto Rico, except for in the near coastal lagoons which had significantly higher observed concentrations. Variations in nutrients between lagoons are driven by connectivity to the ocean and lagoon depth. Because of these relationships, and because there are no obvious major sources of point or non-point sources of pollution on the island that would affect only the lagoons, it is hypothesized that these high nutrient levels are the natural status of the system, rather than evidence of eutrophication.
C1 [Whitall, David; Mason, Andrew; Pait, Anthony] NOAA, Ctr Coastal Monitoring & Assessment, Natl Ctr Coastal Ocean Sci, Natl Ocean Serv, Silver Spring, MD 20910 USA.
RP Whitall, D (reprint author), NOAA, Ctr Coastal Monitoring & Assessment, Natl Ctr Coastal Ocean Sci, Natl Ocean Serv, 1305 East West Hwy, Silver Spring, MD 20910 USA.
EM dave.whitall@noaa.gov
FU NOAA's Office of Response and Restoration
FX Funding for this work was provided by NOAA's Office of Response and
Restoration. The authors would like to thank Kimani Kimbrough, Timothy
Wynne, Robert Warner and Clifford Cosgrove (NOAA) for their assistance
with field work. Jason Rolfe and Diane Wehner (NOAA) participated in
valuable discussions regarding study design. The logistical challenges
of the field operations could not have been overcome without the
extensive cooperation of Oscar Diaz, Sandra Ortiz, Matthew Connolly
(USFWS), Mark Martin (Vieques Conservation and Historical Trust), Dennis
Ballam, Carlton Finley, Ted Dingle, Stacin Martin, and Timothy Garretson
(CH2M Hill). John Noles and Christopher Penny (Department of the Navy)
were instrumental in securing access to restricted areas for the
research team. Captain Franco Gonzalez (Caribbean Flyfishing Company)
provided excellent vessels for the field work.
NR 19
TC 0
Z9 1
U1 2
U2 17
PU TROPICAL CONSERVATION SCIENCE
PI MENLO PARK
PA PO BOX 0291, MENLO PARK, CA 94026-0291 USA
SN 1940-0829
J9 TROP CONSERV SCI
JI Trop. Conserv. Sci.
PY 2012
VL 5
IS 4
BP 495
EP 509
PG 15
WC Biodiversity Conservation
SC Biodiversity & Conservation
GA 083LE
UT WOS:000314464400008
ER
PT S
AU Duong, TH
Hefner, AR
Hobart, KD
AF Duong, Tam H.
Hefner, Allen R.
Hobart, Karl D.
GP IEEE
TI Electro-Thermal Simulation and Design of a 60 A, 4.5 kV Half-Bridge Si
IGBT/SiC JBS Hybrid Power Module
SO 2012 IEEE ENERGY CONVERSION CONGRESS AND EXPOSITION (ECCE)
SE IEEE Energy Conversion Congress and Exposition
LA English
DT Proceedings Paper
CT IEEE Energy Conversion Congress and Exposition (ECCE)
CY SEP 15-20, 2012
CL Raleigh, NC
SP IEEE, IEEE Ind Applicat Soc, IEEE Power Elect Soc
DE Silicon carbide (SiC); medium-voltage; Junction Barrier Schottky (JBS);
hybrid half-bridge module; power systems
AB This paper presents the results from a parametric simulation study that was conducted to optimize the design of a high-current 4.5 kV half-bridge Si-IGBT/SiC-JBS hybrid module for medium voltage hard-switched power conversion as well as to compare the performance of the hybrid module to the all-Si configuration. The simulations are performed for a circuit that emulates hard-switched conditions similar to a full wave inverter and utilizes validated electro-thermal models for the 4.5 kV Si IGBT, Si PiN diode, and SiC JBS diode and a validated thermal model for the module package. Simulations for various circuit and module parameters including the size and number of SiC JBS diode chips, gate resistances and switching frequencies are used to design the module to be used for demonstration in a Naval power converter application.
C1 [Duong, Tam H.; Hefner, Allen R.] NIST, Gaithersburg, MD 20899 USA.
RP Duong, TH (reprint author), NIST, Gaithersburg, MD 20899 USA.
NR 6
TC 1
Z9 1
U1 0
U2 2
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2329-3721
BN 978-1-4673-0801-4
J9 IEEE ENER CONV
PY 2012
BP 4274
EP 4280
PG 7
WC Engineering, Electrical & Electronic
SC Engineering
GA BDE00
UT WOS:000312901704066
ER
PT S
AU Gentile, C
Matolak, DW
Remley, KA
Holloway, CL
Wu, Q
Zhang, Q
AF Gentile, Camillo
Matolak, David W.
Remley, Kate A.
Holloway, Christopher L.
Wu, Qiong
Zhang, Qian
GP IEEE
TI Modeling Urban Peer-to-Peer Channel Characteristics for the 700 MHz and
4.9 GHz Public Safety Bands
SO 2012 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS (ICC)
SE IEEE International Conference on Communications
LA English
DT Proceedings Paper
CT IEEE International Conference on Communications (ICC)
CY JUN 10-15, 2012
CL Ottawa, CANADA
SP IEEE
DE propagation; wireless channel
ID STATISTICAL-MODEL; PROPAGATION
AB We report on models developed for peer-to-peer (ground-based) wireless channels for an urban environment in the 700 MHz and 4.9 GHz bands, both allocated for public safety and "emergency responder" applications. Results are based upon measurements taken in downtown Denver, CO for link distances up to approximately 100 m. Heretofore, measurement-based models for an urban environment in these bands and for low antenna heights have not been developed. Our measurements employed a vector network analyzer, from which log-distance models for path loss and dispersive channel models have been extracted. Our dispersive channel models employ a statistical algorithm for the number of multipath components, previously used only in indoor settings. The channel models should be useful for public safety communication system designers.
C1 [Gentile, Camillo] NIST, Dept Commerce, Informat Technol Lab, Gaithersburg, MD 20899 USA.
RP Gentile, C (reprint author), NIST, Dept Commerce, Informat Technol Lab, Gaithersburg, MD 20899 USA.
EM camillo.gentile@nist.gov; matolak@ohiou.edu; kate.remley@nist.gov
NR 19
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1550-3607
BN 978-1-4577-2053-6
J9 IEEE ICC
PY 2012
PG 6
WC Telecommunications
SC Telecommunications
GA BDD72
UT WOS:000312855704163
ER
PT S
AU Xu, C
Gharavi, H
AF Xu, Chong
Gharavi, Hamid
GP IEEE
TI A Low-Complexity Tree-Search Algorithm to Decode Diversity-Oriented
Block Codes with Inter-Symbol Interference
SO 2012 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS (ICC)
SE IEEE International Conference on Communications
LA English
DT Proceedings Paper
CT IEEE International Conference on Communications (ICC)
CY JUN 10-15, 2012
CL Ottawa, CANADA
SP IEEE
ID SYSTEMS; CHANNELS; SPACE; TIME
AB In order to contain a differential propagation delay in a block based cooperative MIMO system, a guard interval can be inserted to mitigate the effect of inter-symbol interference. A larger block size could substantially increase the effective symbol rate, although at the expense of decoding complexity. In this paper, we propose a novel low-complexity breadthadjustable tree-search algorithm, which, as an example, has been applied to decode Asynchronous Cooperative Liner Dispersion Codes (ACLDC). With simulation we demonstrate that when the blocksize is equivalent to 20, the complexity of the proposed algorithm is only a fraction of 10(-8) of that of the ML algorithm. This would allow us to practically enhance the effective symbol rate without any performance degradation.
C1 [Xu, Chong; Gharavi, Hamid] NIST, Gaithersburg, MD 20899 USA.
RP Xu, C (reprint author), NIST, Gaithersburg, MD 20899 USA.
EM chong.xu@nist.gov; hamid.gharavi@nist.gov
NR 14
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1550-3607
BN 978-1-4577-2053-6
J9 IEEE ICC
PY 2012
PG 6
WC Telecommunications
SC Telecommunications
GA BDD72
UT WOS:000312855704110
ER
PT J
AU Maddox, RA
AF Maddox, Robert A.
TI WEATHER BY THE NUMBERS: THE GENESIS OF MODERN METEOROLOGY
SO EARTH SCIENCES HISTORY
LA English
DT Book Review
C1 [Maddox, Robert A.] NOAA, Tucson, AZ USA.
EM bob@squidinkbooks.com
NR 1
TC 0
Z9 0
U1 0
U2 3
PU HISTORY EARTH SCIENCES SOC
PI SHREWSBURY
PA C/O DAVID I. SPANAGEL, SECRETARY 101 GROVE STREET, SHREWSBURY, MA 01545
USA
SN 0736-623X
J9 EARTH SCI HIST
JI Earth Sci. Hist.
PY 2012
VL 31
IS 2
BP 338
EP 341
PG 4
WC Geology; Geosciences, Multidisciplinary; History & Philosophy Of Science
SC Geology; History & Philosophy of Science
GA 073JM
UT WOS:000313739300014
ER
PT S
AU Ryzhkov, A
Zhang, PF
Krause, J
Schuur, T
Palmer, R
Zrnic, D
AF Ryzhkov, Alexander
Zhang, Pengfei
Krause, John
Schuur, Terry
Palmer, Robert
Zrnic, Dusan
BE Moore, RJ
Cole, SJ
Illingworth, AJ
TI Simultaneous measurements of precipitation using S-band and C-band
polarimetric radars
SO WEATHER RADAR AND HYDROLOGY
SE IAHS Publication
LA English
DT Proceedings Paper
CT International Symposium on Weather Radar and Hydrology
CY APR 18-21, 2011
CL Univ Exeter, Exeter, ENGLAND
HO Univ Exeter
DE polarimetric radar; flash flood; tropical rain
AB Simultaneous measurements of heavy tropical rain made by closely located S- and C-band polarimetric radars are examined. The performance of different algorithms for rainfall estimation is discussed. It is demonstrated that the polarimetric algorithm based on the combined use of specific differential phase and differential reflectivity yields the least biased estimate of rainfall at S-band. Similar estimation at C-band faces challenges.
C1 [Ryzhkov, Alexander; Zhang, Pengfei; Krause, John; Schuur, Terry] Univ Oklahoma, Cooperat Inst Mesoscale Meteorol Studies, 120 David L Boren Blvd, Norman, OK 73072 USA.
[Ryzhkov, Alexander; Zhang, Pengfei; Krause, John; Schuur, Terry; Zrnic, Dusan] Natl Severe Storms Lab, Norman, OK 73069 USA.
[Ryzhkov, Alexander; Palmer, Robert] Univ Oklahoma, Atmospher Radar Res Ctr, Norman, OK USA.
RP Ryzhkov, A (reprint author), Univ Oklahoma, Cooperat Inst Mesoscale Meteorol Studies, 120 David L Boren Blvd, Norman, OK 73072 USA.
EM alexander.ryzhkov@noaa.gov
NR 9
TC 0
Z9 0
U1 0
U2 0
PU INT ASSOC HYDROLOGICAL SCIENCES
PI WALLINGFORD
PA INST OF HYDROLOGY, WALLINGFORD OX10 8BB, ENGLAND
SN 0144-7815
BN 978-1-907161-26-1
J9 IAHS-AISH P
PY 2012
VL 351
BP 87
EP +
PG 2
WC Meteorology & Atmospheric Sciences; Water Resources
SC Meteorology & Atmospheric Sciences; Water Resources
GA BDK63
UT WOS:000313597100015
ER
PT S
AU Howard, K
Zhang, J
Langston, C
Vasiloff, S
Kaney, B
Arthur, A
AF Howard, Kenneth
Zhang, Jian
Langston, Carrie
Vasiloff, Steve
Kaney, Brian
Arthur, Ami
BE Moore, RJ
Cole, SJ
Illingworth, AJ
TI NMQ/Q2: National Mosaic and Multi-sensor QPE System
SO WEATHER RADAR AND HYDROLOGY
SE IAHS Publication
LA English
DT Proceedings Paper
CT International Symposium on Weather Radar and Hydrology
CY APR 18-21, 2011
CL Univ Exeter, Exeter, ENGLAND
HO Univ Exeter
DE Multi-Sensor QPE System
ID RADAR REFLECTIVITY
AB Accurate quantitative precipitation estimates (QPE) are critical for monitoring and prediction of water-related hazards and water resources. While tremendous progress has been made in the last quarter century in many areas of QPE, significant gaps continue to exist in both knowledge and capabilities that are necessary to produce accurate high-resolution precipitation estimates on a national scale for a wide spectrum of users. Toward this goal, a national Next-Generation QPE (NMQ/Q2) system has been developed at the National Oceanic and Atmospheric Administration's National Severe Storms Laboratory (NSSL). The NMQ/Q2 system has been running in real-time in the USA since June 2006. The system generates a suite of QPE products for the Conterminous United States at a 1-km horizontal resolution and 2.5 minute update cycle. The experimental products are disseminated in real-time to users and have been utilized in various meteorological and hydrological applications. In 2006, working with the United States National Weather Service's Office of Climate, Weather, and Water Services, NSSL began prototype testing of the high-resolution gridded NMQ/Q2 precipitation products as input into the Flash Flood Monitoring and Prediction program. Dissemination of Q2 products to selected River Forecast Centers (RFCs) began in 2007 with all RFCs currently having access through the Advanced Weather Interactive Processing System (AWIPS) Multi-sensor Precipitation Estimator (MPE).
C1 [Howard, Kenneth; Zhang, Jian; Vasiloff, Steve] NOAA, Natl Severe Storms Lab, Natl Weather Ctr, 120 David L Boren Blvd, Norman, OK 73072 USA.
[Langston, Carrie; Kaney, Brian; Arthur, Ami] Univ Oklahoma, CIMMS, Natl Weather Ctr, Oklahoma City, OK 73072 USA.
RP Howard, K (reprint author), NOAA, Natl Severe Storms Lab, Natl Weather Ctr, 120 David L Boren Blvd, Norman, OK 73072 USA.
EM kenneth.howard@noaa.gov
NR 9
TC 0
Z9 0
U1 0
U2 1
PU INT ASSOC HYDROLOGICAL SCIENCES
PI WALLINGFORD
PA INST OF HYDROLOGY, WALLINGFORD OX10 8BB, ENGLAND
SN 0144-7815
BN 978-1-907161-26-1
J9 IAHS-AISH P
PY 2012
VL 351
BP 163
EP +
PG 2
WC Meteorology & Atmospheric Sciences; Water Resources
SC Meteorology & Atmospheric Sciences; Water Resources
GA BDK63
UT WOS:000313597100027
ER
PT S
AU Qi, YC
Zhang, J
Kingsmill, D
Min, JZ
AF Qi, Youcun
Zhang, Jian
Kingsmill, David
Min, Jinzhong
BE Moore, RJ
Cole, SJ
Illingworth, AJ
TI VPR corrections of cool season radar QPE errors in the mountainous area
of northern California
SO WEATHER RADAR AND HYDROLOGY
SE IAHS Publication
LA English
DT Proceedings Paper
CT International Symposium on Weather Radar and Hydrology
CY APR 18-21, 2011
CL Univ Exeter, Exeter, ENGLAND
HO Univ Exeter
DE Vertical Profile of Reflectivity; VPR correction; radar QPE
ID S-BAND RADAR; VERTICAL PROFILES; PRECIPITATION; REFLECTIVITY; RANGE;
IDENTIFICATION
AB Non-uniformity of the vertical profile of reflectivity (VPR) is one of the major error sources for radar quantitative precipitation estimation (QPE) in the cool season, especially for mountainous areas. The error is due to two factors: one is that the radar beam samples too high above the ground and misses the microphysics at lower levels; the other is that the radar beam broadens with range and thus cannot resolve vertical variations of reflectivity structure. These errors have posed a major challenge for radar QPE in the complex terrain of northern California. The current study used precipitation profiler observations obtained in this mountainous area and developed a new VPR correction methodology for scanning radar QPE. The precipitation profiler data were used to determine slopes of a linear VPR model in the ice, bright band, and rain regions, and the slope parameters are derived for different geographical areas. The parameterized VPR is then used to correct for scanning-radar QPE. The new methodology was tested using a heavy rain case that occurred over the period 30 December 2005 to 1 January 2006 in northern California, and was found to provide significant improvements over the operational radar QPE.
C1 [Qi, Youcun; Min, Jinzhong] Nanjing Univ Informat Sci & Technol, Coll Atmospher Sci, Nanjing 210044, Jiangsu, Peoples R China.
[Qi, Youcun] Univ Oklahoma, CIMMS, Oklahoma City, OK 73072 USA.
[Zhang, Jian] Natl Servere Storms Lab, Oklahoma City, OK 73072 USA.
[Kingsmill, David] Univ Colorado, NOAA, CIRES, Earth Syst Res Lab, Boulder, CO 80309 USA.
RP Qi, YC (reprint author), Nanjing Univ Informat Sci & Technol, Coll Atmospher Sci, Nanjing 210044, Jiangsu, Peoples R China.
EM youcun.qi@noaa.gov
FU NOAA's HydroMeteorological Testbed (HMT) program; NOAAUniversity of
Oklahoma Cooperative Agreement [NA17RJ1227]
FX Major funding for this research was provided under NOAA's
HydroMeteorological Testbed (HMT) program and partial funding was
provided under NOAAUniversity of Oklahoma Cooperative Agreement
#NA17RJ1227.
NR 13
TC 0
Z9 0
U1 0
U2 0
PU INT ASSOC HYDROLOGICAL SCIENCES
PI WALLINGFORD
PA INST OF HYDROLOGY, WALLINGFORD OX10 8BB, ENGLAND
SN 0144-7815
BN 978-1-907161-26-1
J9 IAHS-AISH P
PY 2012
VL 351
BP 188
EP +
PG 2
WC Meteorology & Atmospheric Sciences; Water Resources
SC Meteorology & Atmospheric Sciences; Water Resources
GA BDK63
UT WOS:000313597100031
ER
PT S
AU Zhang, J
Qi, YC
Langston, C
Kaney, B
AF Zhang, Jian
Qi, Youcun
Langston, Carrie
Kaney, Brian
BE Moore, RJ
Cole, SJ
Illingworth, AJ
TI Radar Quality Index (RQI) - a combined measure for beam blockage and VPR
effects in a national network
SO WEATHER RADAR AND HYDROLOGY
SE IAHS Publication
LA English
DT Proceedings Paper
CT International Symposium on Weather Radar and Hydrology
CY APR 18-21, 2011
CL Univ Exeter, Exeter, ENGLAND
HO Univ Exeter
DE radar QPE quality; beam blockage; VPR; national radar network
ID HYDROMETEOR CLASSIFICATION; ALGORITHM; QPE
AB The next-generation multi-sensor quantitative precipitation estimation (QPE), or "Q2", is an experimental hydrometeorological system that integrates data from radar, raingauge, and atmospheric models and generates high-resolution precipitation products on a national scale in real-time. The quality of the Q2 radar QPE varies in space and in time due to a number of factors, which include: (1) errors in measuring radar reflectivity; (2) segregation of precipitation and non-precipitation echoes; (3) uncertainties in Z-R relationships; and (4) variability in the vertical profile of reflectivity (VPR). In the current study, a Radar QPE Quality Index (RQI) field is developed to present the radar QPE uncertainty associated with VPRs. The RQI field accounts for radar beam sampling characteristics (blockage, beam height and width) and their relationships with respect to the freezing level. A national RQI map is generated by mosaicking single radar RQI fields. The radar quality information is useful to hydrological users and can add value in radar rainfall applications.
C1 [Zhang, Jian] Natl Severe Storms Lab, 120 David L Boren Blvd, Norman, OK 73072 USA.
[Qi, Youcun; Langston, Carrie; Kaney, Brian] Univ Oklahoma, Cooperat Inst Mesoscale Meteorol Studies, 120 David L Boren Blvd, Norman, OK 73072 USA.
[Qi, Youcun] Nanjing Univ Informat Sci & Technol, Nanjing, Peoples R China.
RP Zhang, J (reprint author), Natl Severe Storms Lab, 120 David L Boren Blvd, Norman, OK 73072 USA.
EM jian.zhang@noaa.gov
NR 9
TC 8
Z9 8
U1 0
U2 1
PU INT ASSOC HYDROLOGICAL SCIENCES
PI WALLINGFORD
PA INST OF HYDROLOGY, WALLINGFORD OX10 8BB, ENGLAND
SN 0144-7815
BN 978-1-907161-26-1
J9 IAHS-AISH P
PY 2012
VL 351
BP 388
EP +
PG 2
WC Meteorology & Atmospheric Sciences; Water Resources
SC Meteorology & Atmospheric Sciences; Water Resources
GA BDK63
UT WOS:000313597100063
ER
PT S
AU Gourley, JJ
Flamig, ZL
Hong, Y
Howard, KW
AF Gourley, Jonathan J.
Flamig, Zachary L.
Hong, Yang
Howard, Kenneth W.
BE Moore, RJ
Cole, SJ
Illingworth, AJ
TI On the accuracy of the past, present, and future tools for flash flood
prediction in the USA
SO WEATHER RADAR AND HYDROLOGY
SE IAHS Publication
LA English
DT Proceedings Paper
CT International Symposium on Weather Radar and Hydrology
CY APR 18-21, 2011
CL Univ Exeter, Exeter, ENGLAND
HO Univ Exeter
DE flash flood; radar; distributed hydrologic model
ID DISTRIBUTED HYDROLOGIC MODEL; WARNING SYSTEMS
AB The skill of the USA National Weather Service's flash flood guidance tool has been quantified from 2006 to 2008 using a combination of flash flood observations from spotter reports, automated stream discharge measurements, and witness reports from the public. A 15-year radar-based rainfall archive was used to run a distributed hydrologic model, thus enabling the estimation of flood frequencies at every 4-km grid cell. Exceedences of these return period flows were considered as predictors of flash flooding, and were validated using the same aforementioned datasets to establish the skill of present flash flood guidance. Significant improvements were realised using the forward modelling approach. Given the advent of 1-km(2), 5-min radar rainfall observations, distributed hydrologic models, and increased computing power, all of which are commensurate with the scales of flash flooding, it is now possible to directly forecast the probability of flash flooding over the conterminous USA in real time.
C1 [Gourley, Jonathan J.; Howard, Kenneth W.] Natl Severe Storms Lab, 120 David L Boren Blvd, Norman, OK 73072 USA.
[Flamig, Zachary L.; Hong, Yang] Univ Oklahoma, Atmospher Radar Res Ctr, Norman, OK 73072 USA.
RP Gourley, JJ (reprint author), Natl Severe Storms Lab, 120 David L Boren Blvd, Norman, OK 73072 USA.
EM jj.guourley@noaa.gov
NR 10
TC 0
Z9 0
U1 1
U2 4
PU INT ASSOC HYDROLOGICAL SCIENCES
PI WALLINGFORD
PA INST OF HYDROLOGY, WALLINGFORD OX10 8BB, ENGLAND
SN 0144-7815
BN 978-1-907161-26-1
J9 IAHS-AISH P
PY 2012
VL 351
BP 435
EP +
PG 3
WC Meteorology & Atmospheric Sciences; Water Resources
SC Meteorology & Atmospheric Sciences; Water Resources
GA BDK63
UT WOS:000313597100070
ER
PT S
AU Flamig, ZL
Anagnostou, E
Gourley, J
Hong, Y
AF Flamig, Zachary L.
Anagnostou, Emmanouil
Gourley, Jonathan
Hong, Yang
BE Moore, RJ
Cole, SJ
Illingworth, AJ
TI Uncertainty estimation of deterministic river basin response simulations
at gauged locations
SO WEATHER RADAR AND HYDROLOGY
SE IAHS Publication
LA English
DT Proceedings Paper
CT International Symposium on Weather Radar and Hydrology
CY APR 18-21, 2011
CL Univ Exeter, Exeter, ENGLAND
HO Univ Exeter
DE flood; distributed hydrological model; uncertainty estimation;
probabilistic forecasting
AB This study presents a method to supply uncertainty estimates to flood predictions based on deterministic river basin response simulations from an uncalibrated, distributed hydrological model. A 15-year radar rainfall archive was used to run a hydrological model, thus providing a time series of simulated flows at every model grid cell. At grid cells corresponding to streamgauge locations, the time periods at which observed streamflow exceeded pre-computed observed flow frequency thresholds (e.g. 2-, 5-, 10-year return period flows) were identified. The distributions of simulated flows within (i.e. flooding at the respective frequency threshold) and outside (non-flooding at the respective frequency) these time intervals were then computed. The accuracy of the method is evaluated during an independent validation period where probabilities of flood >0.9 during flood cases are predicted more than 90% of the time, while probabilities of flood equal to zero occurred 75% of the time during non-flood cases.
C1 [Flamig, Zachary L.; Hong, Yang] Univ Oklahoma, Atmospher Radar Res Ctr, 120 David L Boren Blvd, Norman, OK 73072 USA.
[Anagnostou, Emmanouil] Univ Connecticut, Dept Civil & Environm Engn, Storrs, CT 06269 USA.
[Gourley, Jonathan] NOAA, Natl Severe Stroms Lab, Norman, OK 73072 USA.
RP Flamig, ZL (reprint author), Univ Oklahoma, Atmospher Radar Res Ctr, 120 David L Boren Blvd, Norman, OK 73072 USA.
EM zac.flamig@noaa.gov
RI Hong, Yang/D-5132-2009
OI Hong, Yang/0000-0001-8720-242X
NR 4
TC 0
Z9 0
U1 0
U2 1
PU INT ASSOC HYDROLOGICAL SCIENCES
PI WALLINGFORD
PA INST OF HYDROLOGY, WALLINGFORD OX10 8BB, ENGLAND
SN 0144-7815
BN 978-1-907161-26-1
J9 IAHS-AISH P
PY 2012
VL 351
BP 556
EP +
PG 2
WC Meteorology & Atmospheric Sciences; Water Resources
SC Meteorology & Atmospheric Sciences; Water Resources
GA BDK63
UT WOS:000313597100090
ER
PT S
AU Rendon, SH
Vieux, BE
Pathak, CS
AF Rendon, Samuel H.
Vieux, Baxter E.
Pathak, Chandra S.
BE Moore, RJ
Cole, SJ
Illingworth, AJ
TI Derivation of seasonally-specific Z-R relationships for NEXRAD radar for
a sparse raingauge network
SO WEATHER RADAR AND HYDROLOGY
SE IAHS Publication
LA English
DT Proceedings Paper
CT International Symposium on Weather Radar and Hydrology
CY APR 18-21, 2011
CL Univ Exeter, Exeter, ENGLAND
HO Univ Exeter
DE radar; NEXRAD; Z-R relationships; hydrological forecasting; rainfall
estimation
AB Radar-based hydrological prediction relies on available raingauges to correct for bias in rainfall estimates. Standard Z-R (radar reflectivity factor against rain-rate) relationships have been developed which are characteristic of storm types, e.g. convective or tropical storms. However, the evolution of storm drop-size distribution and radar-specific factors can affect the accuracy of these standard relationships. Deriving Z-R relationships from raingauge observations for specific radars offers the potential for improved rainfall estimation. The derived Z-R relationship would be more representative of local climatology and radar characteristics, and can be used when raingauges are not available in real-time for bias correction. The purpose of this project is to derive and evaluate regionally- and seasonally-specific Z-R relationships for use in the South Florida Water Management District (SFWMD). These regionally specific relationships are expected to reduce bias in rainfall estimates found when using standard Z-R relationships, and lead to improved rainfall estimation for operational decisions. Validation of the derived Z-R relationships for dry, intermediate, and wet seasons revealed significant bias reduction to essentially 1:1 agreement during the respective seasons. While such relationships are not expected to replace bias adjustment using raingauges on a storm total or real-time basis, they do represent a better starting point for gauge adjustment of the Z-R relationship.
C1 [Rendon, Samuel H.; Vieux, Baxter E.] Univ Oklahoma, Sch Civil Engn & Environm Sci, Natl Weather Ctr, 120 David L Boren Blvd,Suite 5340, Norman, OK 73071 USA.
[Pathak, Chandra S.] SCADA, Hydro Data Management Dept, Operat & Hydro Data Management Div, W Palm Beach, FL 33416 USA.
RP Rendon, SH (reprint author), Univ Oklahoma, Sch Civil Engn & Environm Sci, Natl Weather Ctr, 120 David L Boren Blvd,Suite 5340, Norman, OK 73071 USA.
EM bvieux@ou.edu
NR 9
TC 0
Z9 0
U1 0
U2 3
PU INT ASSOC HYDROLOGICAL SCIENCES
PI WALLINGFORD
PA INST OF HYDROLOGY, WALLINGFORD OX10 8BB, ENGLAND
SN 0144-7815
BN 978-1-907161-26-1
J9 IAHS-AISH P
PY 2012
VL 351
BP 655
EP +
PG 2
WC Meteorology & Atmospheric Sciences; Water Resources
SC Meteorology & Atmospheric Sciences; Water Resources
GA BDK63
UT WOS:000313597100106
ER
PT J
AU Wilkin, SM
Cordaro, J
Gulland, FMD
Wheeler, E
Dunkin, R
Sigler, T
Casper, D
Berman, M
Flannery, M
Fire, S
Wang, ZH
Colegrove, K
Baker, J
AF Wilkin, Sarah M.
Cordaro, Joe
Gulland, Frances M. D.
Wheeler, Elizabeth
Dunkin, Robin
Sigler, Teri
Casper, Dave
Berman, Michelle
Flannery, Moe
Fire, Spencer
Wang, Zhihong
Colegrove, Kathleen
Baker, Jason
TI An Unusual Mortality Event of Harbor Porpoises (Phocoena phocoena) Off
Central California: Increase in Blunt Trauma Rather Than an Epizootic
SO AQUATIC MAMMALS
LA English
DT Article
DE mortality; trauma; harbor porpoise; Phocoena phocoena; infanticide;
domoic acid; stranding; UME
ID BOTTLE-NOSED DOLPHINS; VIOLENT INTERACTIONS; NORTHERN CALIFORNIA; DOMOIC
ACID; SEA LIONS; ABUNDANCE; INFANTICIDE; TOXICITY; REGION
AB In 2007, the apparent increase in the number of harbor porpoises (Phocoena phocoena) stranding along the central California coast compared to the number of strandings the previous year resulted in the declaration of an Unusual Mortality Event by the National Marine Fisheries Service. A statistically significant increase in strandings occurred in 2008 and 2009, with more than twice the mean annual number of strandings documented per year in the previous decade occurring each year, but then strandings decreased in 2010. No single cause of mortality explained all the strandings, and there were no significant changes in age class or sex of strandings in 2008 and 2009. Trauma, including interspecific aggression and fisheries interactions, was the most common cause of death, and blunt force trauma increased significantly in August through October of 2008 and 2009. Domoic acid toxicosis was documented for the first time in this species. Although the cause of death for many strandings was unidentified, the increase in strandings in 2008-2009 reflects an increase in blunt trauma rather than an epizootic of disease.
C1 [Wilkin, Sarah M.; Cordaro, Joe] Natl Marine Fisheries Serv, Long Beach, CA 90802 USA.
[Gulland, Frances M. D.; Wheeler, Elizabeth] Marine Mammal Ctr, Sausalito, CA 94965 USA.
[Dunkin, Robin; Sigler, Teri; Casper, Dave] Univ Santa Cruz, Long Marine Lab, Santa Cruz, CA 95060 USA.
[Berman, Michelle] Santa Barbara Museum Nat Hist, Santa Barbara, CA 93105 USA.
[Flannery, Moe] Calif Acad Sci, San Francisco, CA 94118 USA.
[Fire, Spencer; Wang, Zhihong] NOAA, Ctr Coastal Environm Hlth & Biomol Res, Charleston, SC 29412 USA.
[Colegrove, Kathleen] Univ Illinois, Loyola Univ Med Ctr, Maywood, IL 60153 USA.
[Baker, Jason] Natl Marine Fisheries Serv, Pacific Isl Fisheries Sci Ctr, NOAA, Honolulu, HI 96822 USA.
RP Wilkin, SM (reprint author), Natl Marine Fisheries Serv, 501 W Ocean Blvd,Suite 4200, Long Beach, CA 90802 USA.
EM Sarah.Wilkin@noaa.gov
RI Fire, Spencer/P-6040-2014
OI Fire, Spencer/0000-0002-1657-790X
NR 35
TC 6
Z9 6
U1 2
U2 19
PU EUROPEAN ASSOC AQUATIC MAMMALS
PI MOLINE
PA C/O DR JEANETTE THOMAS, BIOLOGICAL SCIENCES, WESTERN ILLIONIS UNIV-QUAD
CITIES, 3561 60TH STREET, MOLINE, IL 61265 USA
SN 0167-5427
J9 AQUAT MAMM
JI Aquat. Mamm.
PY 2012
VL 38
IS 3
BP 301
EP 310
DI 10.1578/AM.38.3.2012.301
PG 10
WC Marine & Freshwater Biology; Zoology
SC Marine & Freshwater Biology; Zoology
GA 066JD
UT WOS:000313215800007
ER
PT S
AU Davis, JN
Miara, LJ
Saraf, L
Kaspar, TC
Gopalan, S
Pal, UB
Woicik, JC
Basu, SN
Ludwig, KF
AF Davis, J. N.
Miara, L. J.
Saraf, L.
Kaspar, T. C.
Gopalan, S.
Pal, U. B.
Woicik, J. C.
Basu, S. N.
Ludwig, K. F.
BE Doeff, M
Dudney, N
Manivannan, A
Narayan, SR
TI Hard X-ray Fluorescence Measurements of Heteroepitaxial Solid Oxide Fuel
Cell Cathode Materials
SO BATTERY/ENERGY TECHNOLOGY (GENERAL) - 220TH ECS MEETING
SE ECS Transactions
LA English
DT Proceedings Paper
CT Symposium on Battery/Energy Technology Joint General Session Held During
the 220th Meeting of the Electrochemical-Society (ECS)
CY OCT 09-14, 2011
CL Boston, MA
SP Electrochemical Soc (ECS), Battery, Energy Technol (ETD)
AB Strontium doped lanthanum manganite (La0.8Sr0.2)(0.95)MnO3 (LSM) and lanthanum strontium cobalt ferrite La0.6Sr0.4Co0.2Fe0.8O3 (LSCF) thin films were grown by pulsed laser deposition (PLD) on single crystal substrates. Total X-ray Reflection Fluorescence (TXRF) reveals the evolution of surface composition due to annealing at 800 degrees C. X-ray Absorption Near Edge Spectroscopy (XANES) provides insight into the local electronic structure of the cations. LSM manganese concentration is higher at the surface than in the bulk in as-deposited films. Annealing further enhances surface manganese segregation and irreversibly changes the manganese XANES spectra. Surface strontium is greatly enhanced in LSCF samples quenched from 800 degrees C, however the strontium is reabsorbed into the film when allowed to cool slowly.
C1 [Davis, J. N.; Miara, L. J.; Gopalan, S.; Pal, U. B.; Basu, S. N.; Ludwig, K. F.] Boston Univ, Div Mat Sci & Engn, Brookline, MA 02446 USA.
[Gopalan, S.; Pal, U. B.; Basu, S. N.] Boston Univ, Dept Mech Engn, Boston, MA 02215 USA.
[Saraf, L.; Kaspar, T. C.; Ludwig, K. F.] PNNL, Environm Mol Sci Lab, Richland, WA 99352 USA.
[Woicik, J. C.] Natl Inst Stand & Technol, Gaithersburg, MD 20899 USA.
[Ludwig, K. F.] Boston Univ, Dept Phys, Boston, MA 02215 USA.
RP Davis, JN (reprint author), Boston Univ, Div Mat Sci & Engn, Brookline, MA 02446 USA.
FU DOE SECA [DE-NT000410]; Department of Energy's Office of Biological and
Environmental Research; U.S. Department of Energy, Office of Science,
Office of Basic Energy Sciences [DE-AC02-98CH10886]
FX This work is supported through the DOE SECA program under Grant
DE-NT000410. A portion of the research was performed using EMSL, a
national scientific user facility sponsored by the Department of
Energy's Office of Biological and Environmental Research and located at
Pacific Northwest National Laboratory. Use of the National Synchrotron
Light Source, Brookhaven National Laboratory, was supported by the U.S.
Department of Energy, Office of Science, Office of Basic Energy
Sciences, under Contract No. DE-AC02-98CH10886.
NR 2
TC 3
Z9 3
U1 0
U2 17
PU ELECTROCHEMICAL SOC INC
PI PENNINGTON
PA 65 S MAIN ST, PENNINGTON, NJ 08534-2839 USA
SN 1938-5862
BN 978-1-56677-943-2
J9 ECS TRANSACTIONS
PY 2012
VL 41
IS 11
BP 19
EP 24
DI 10.1149/1.3687387
PG 6
WC Electrochemistry
SC Electrochemistry
GA BDM06
UT WOS:000313719500003
ER
PT S
AU Tolentino, S
Moon, M
AF Tolentino, Scott
Moon, Michael
BE Tallman, RF
Howland, KL
Rennie, RD
Mills, K
TI Artificial reef construction and use by three endemic Coregonid
whitefishes in Bear Lake, Utah, USA
SO BIOLOGY AND MANAGEMENT OF COREGONID FISHES - 2008
SE Advances in Limnology
LA English
DT Proceedings Paper
CT 10th Symposium on the Biology and Management of Coregonid Fishes
CY AUG, 2008
CL Winnipeg, CANADA
DE whitefish; habitat; artificial reef; Prosopium spilonotus; P.
abyssicola; P gemmifer
ID PREDATION RISK; RAINBOW-TROUT; HABITAT; ECOLOGY; SCULPIN; FISHES; IDAHO;
EGGS
AB Recent drought (2000-2007) in the western United States has caused water levels in Bear Lake to drop to historic lows. Lower than normal lake levels in 2004 dewatered approximately 52,609 m(2), or an estimated 80% of the available rocky habitat in the lake (compared to the habitat available when at full pool). This rocky shoreline habitat is used for spawning by all three species of endemic Bear Lake coregonids: Prosopium spilonotus, P. gemmifer, and P. abyssicola. In October 2005, four rock reefs were constructed along the west side of Bear Lake in approximately 10 meters of water with the goal to enhance opportunities for spawning and recruitment of endemic coregonids, as well as provide a near shore fishing area for boat and ice anglers. We describe the procedures used to create the rock reefs and subsequent use of the reefs by endemic coregonids during 2006-2007. P. spilonotus used the reefs at more times of the year than P. gemmifer or P. abyssicola, but all three species used the rocks to some degree and especially during their respective spawning seasons. Although some of our results suggested the installation of the artificial reefs increased the preferred spawning habitat for endemic coregonids during drought, any future widespread installation of artificial reefs must also consider undesirable consequences, such as artificial reefs benefiting non-native species.
C1 [Tolentino, Scott] Utah Div Wildlife Resources, Bear Lake Stn, 1030 N Bear Lake Blvd,POB 231, Garden City, UT 84028 USA.
[Moon, Michael] Natl Ocean & Atmospher Adm, Seattle, WA 20230 USA.
RP Tolentino, S (reprint author), Utah Div Wildlife Resources, Bear Lake Stn, 1030 N Bear Lake Blvd,POB 231, Garden City, UT 84028 USA.
EM scotttolentino@utah.gov
NR 32
TC 0
Z9 0
U1 0
U2 1
PU E SCHWEIZERBART'SCHE VERLAGSBUCHHANDLUNG
PI STUTTGART
PA JOHANNESTRASSE 3, W-7000 STUTTGART, GERMANY
SN 1612-166X
BN 978-3-510-47065-5
J9 ADV LIMNOL
JI Adv. Limnol.
PY 2012
VL 63
BP 535
EP +
PG 4
WC Fisheries; Limnology; Marine & Freshwater Biology
SC Fisheries; Marine & Freshwater Biology
GA BDG19
UT WOS:000313086600034
ER
PT J
AU Thol, M
Lemmon, EW
Span, R
AF Thol, Monika
Lemmon, Eric W.
Span, Roland
TI Equation of state for benzene for temperatures from the melting line up
to 725 K with pressures up to 500 MPa
SO HIGH TEMPERATURES-HIGH PRESSURES
LA English
DT Article; Proceedings Paper
CT 9th Asian Thermophysical Properties Conference (ATPC)
CY OCT 19-22, 2010
CL Beijing, PEOPLES R CHINA
SP Univ Sci & Technol Beijing, Natl Nat Sci Fdn China, Chinese Minist Educ
DE Benzene; equation of state; extrapolation behavior; Helmholtz energy;
thermodynamic properties
ID THERMODYNAMIC PROPERTIES; LIQUID BENZENE; VAPOR-PRESSURES;
HEXAFLUOROBENZENE; DENSITIES; MIXTURES; ETHANOL; SYSTEM
AB An equation of state (EOS) is presented for the thermodynamic properties of benzene that is valid from the triple point temperature (278.674 K) to 725 K with pressures up to 500 MPa. The equation is expressed in terms of the Helmholtz energy as a function of temperature and density. This formulation can be used for the calculation of all thermodynamic properties. Comparisons to experimental data are given to establish the accuracy of the EOS. The approximate uncertainties (k = 2) of properties calculated with the new equation are 0.1% below T = 350 K and 0.2% above T = 350 K for vapor pressure and liquid density, 1% for saturated vapor density, 0.1% for density up to T = 350 K and p = 100 MPa, 0.1 - 0.5% in density above T = 350 K, 1% for the isobaric and saturated heat capacities, and 0.5% in speed of sound. Deviations in the critical region are higher for all properties except vapor pressure.
C1 [Thol, Monika; Span, Roland] Ruhr Univ Bochum, D-44801 Bochum, Germany.
[Thol, Monika; Lemmon, Eric W.] NIST, Boulder, CO 80305 USA.
RP Thol, M (reprint author), Ruhr Univ Bochum, Univ Str 150, D-44801 Bochum, Germany.
EM M.Thol@thermo.ruhr-uni-bochum.de
NR 22
TC 7
Z9 7
U1 2
U2 14
PU OLD CITY PUBLISHING INC
PI PHILADELPHIA
PA 628 NORTH 2ND ST, PHILADELPHIA, PA 19123 USA
SN 0018-1544
J9 HIGH TEMP-HIGH PRESS
JI High Temp.-High Press.
PY 2012
VL 41
IS 2
SI SI
BP 81
EP 97
PG 17
WC Thermodynamics; Mechanics; Materials Science, Characterization & Testing
SC Thermodynamics; Mechanics; Materials Science
GA 072PK
UT WOS:000313684500002
ER
PT J
AU Thol, M
Lemmon, EW
Span, R
AF Thol, Monika
Lemmon, Eric W.
Span, Roland
TI Equation of state for benzene for temperatures from the melting line up
to 725 K with pressures up to 500 MP
SO HIGH TEMPERATURES-HIGH PRESSURES
LA English
DT Article
DE Benzene; equation of state; extrapolation behavior; Helmholtz energy;
thermodynamic properties
ID THERMODYNAMIC PROPERTIES; LIQUID BENZENE; VAPOR-PRESSURES;
HEXAFLUOROBENZENE; DENSITIES; MIXTURES; ETHANOL; SYSTEM
AB An equation of state (EOS) is presented for the thermodynamic properties of benzene that is valid from the triple point temperature (278.674 K) to 725 K with pressures up to 500 MPa. The equation is expressed in terms of the Helmholtz energy as a function of temperature and density. This formulation can be used for the calculation of all thermodynamic properties. Comparisons to experimental data are given to establish the accuracy of the EOS. The approximate uncertainties (k = 2) of properties calculated with the new equation are 0.1% below T = 350 K and 0.2% above T = 350 K for vapor pressure and liquid density, 1% for saturated vapor density, 0.1% for density up to T = 350 K and p = 100 MPa, 0.1-0.5% in density above T = 350 K, 1% for the isobaric and saturated heat capacities, and 0.5% in speed of sound. Deviations in the critical region are higher for all properties except vapor pressure.
C1 [Thol, Monika; Span, Roland] Ruhr Univ Bochum, D-44801 Bochum, Germany.
[Thol, Monika; Lemmon, Eric W.] NIST, Boulder, CO 80305 USA.
RP Thol, M (reprint author), Ruhr Univ Bochum, Univ Str 150, D-44801 Bochum, Germany.
EM M.Thol@thermo.ruhr-uni-bochum.de
NR 23
TC 4
Z9 4
U1 0
U2 7
PU OLD CITY PUBLISHING INC
PI PHILADELPHIA
PA 628 NORTH 2ND ST, PHILADELPHIA, PA 19123 USA
SN 0018-1544
J9 HIGH TEMP-HIGH PRESS
JI High Temp.-High Press.
PY 2012
VL 41
IS 6
BP 467
EP 486
PG 20
WC Thermodynamics; Mechanics; Materials Science, Characterization & Testing
SC Thermodynamics; Mechanics; Materials Science
GA 072QE
UT WOS:000313686500005
ER
PT S
AU Vega-Martinez, Z
Temimi, M
Anderson, MC
Hain, C
Krakauer, N
Ribin, R
Khanbilvardi, R
AF Vega-Martinez, Zulamet
Temimi, Marouane
Anderson, Martha C.
Hain, Christopher
Krakauer, Nir
Ribin, Robert
Khanbilvardi, Reza
BE Neale, CMU
Cosh, MH
TI Towards a better monitoring of soil moisture using a combination of
estimates from passive microwave and thermal observations
SO REMOTE SENSING AND HYDROLOGY
SE IAHS Publication
LA English
DT Proceedings Paper
CT Remote Sensing and Hydrology Symposium
CY SEP 27-30, 2010
CL Jackson Hole, WY
SP IAHS, Int Commiss Remote Sens
DE ALEXI; soil moisture; AMSR-E; evapotranspiration; passive microwave
AB Soil moisture is a key variable in hydrological and meteorological processes. It exhibits significant temporal and spatial variation. Therefore, the use of satellite imagery to monitor its variability is crucial. The main objective of this work is to implement a multi-satellite approach which combines soil moisture estimates from passive microwave and thermal observations to improve the monitoring of soil wetness on a continental scale. Soil moisture estimates are obtained from passive microwave data from the AMSR-E NASA product and from thermal and near infrared observations using the ALEXI model. Ultimately, a statistical combination of these two products would overcome their individual limitations, allowing for better monitoring of soil moisture. The main limitation of passive microwave-based products is their coarse spatial resolution. Their main advantage, however, is their capability to penetrate clouds. On the other hand, the main advantage of the ALEXI-based product is its higher spatial resolution and deeper sampling into the root zone. Cloud blockage is its main limitation. The prospective product, the result of the combination, would have a better spatial resolution than the passive microwave-based product and a better temporal coverage than the ALEXI-based product. Several locations with different land cover conditions were chosen to compare and analyse the difference between the two products. These areas are located in Washington State, California, Texas, Alabama, Florida and New York, USA. The Atmosphere-Land Exchange (ALEXI) model mainly uses GOES data to calculate soil moisture in clear-sky days on a continental scale. On cloudy days, when visual imagery is affected by clouds, a gap-filling technique is adopted to continue inferring soil moisture. A preliminary visualization of the soil moisture products from ALEXI and AMSR-E has been conducted, including daily evaluations for the different combinations of data in different regions. A reasonable agreement has been noticed between the two products. The consistency between the two products suggests that they can be combined for better monitoring of soil wetness.
C1 [Vega-Martinez, Zulamet; Temimi, Marouane; Krakauer, Nir; Khanbilvardi, Reza] CUNY, NOAA CREST, New York, NY 10031 USA.
[Anderson, Martha C.] USDA ARS, Hydrol & Remote Sensing Lab, Beltsville, MD 20705 USA.
[Hain, Christopher] NOAA NESDIS, Camp Springs, MD 20746 USA.
[Ribin, Robert] NOAA NSSL, Madison, WI 53706 USA.
RP Vega-Martinez, Z (reprint author), CUNY, NOAA CREST, New York, NY 10031 USA.
EM zvega4@gmail.com
RI Hain, Christopher/G-3512-2012;
OI Hain, Christopher/0000-0002-0093-6816; Anderson,
Martha/0000-0003-0748-5525
FU National Oceanic and Atmospheric Administration (NOAA) [NA060AR4810162]
FX This study was supported and monitored by the National Oceanic and
Atmospheric Administration (NOAA) under grant number NA060AR4810162. The
statements contained within this document are not the opinions of the
funding agency or the US government, but reflect the author's opinions.
NR 2
TC 0
Z9 0
U1 0
U2 5
PU INT ASSOC HYDROLOGICAL SCIENCES
PI WALLINGFORD
PA INST OF HYDROLOGY, WALLINGFORD OX10 8BB, ENGLAND
SN 0144-7815
BN 978-1-907161-27-8
J9 IAHS-AISH P
PY 2012
VL 352
BP 42
EP +
PG 2
WC Remote Sensing; Water Resources
SC Remote Sensing; Water Resources
GA BDK60
UT WOS:000313596500010
ER
PT S
AU Halquist, J
Fall, GM
Wang, DG
AF Halquist, John
Fall, Gregory M.
Wang, Dagang
BE Neale, CMU
Cosh, MH
TI Assimilation of remotely sensed snow cover within land surface models to
support early detection of agricultural drought
SO REMOTE SENSING AND HYDROLOGY
SE IAHS Publication
LA English
DT Proceedings Paper
CT Remote Sensing and Hydrology Symposium
CY SEP 27-30, 2010
CL Jackson Hole, WY
SP IAHS, Int Commiss Remote Sens
DE FEWS NET; snow water equivalent; snow cover; assimilation
AB In support of the United States Geological Survey and its scientific support role to the USAID's Famine Early Warning Systems Network (FEWS NET), the National Oceanic and Atmospheric Administration's (NOAA) National Operational Hydrologic Remote Sensing Center (NOHRSC) is developing land surface models for the purpose of providing estimates of snow water equivalent for areas of central Asia. Snow is a critical source of freshwater for many parts of this region. Winter and spring snowpack information is an early indicator of water availability for agriculture within snow-affected regions, as well as for downstream irrigated areas. Daily synoptic modelling of regional snow packs supports the early detection of agricultural drought associated with production shortfalls that threaten food security. Consequently, snow water equivalent estimation is one key component of a famine early warning system for this region. As in situ snowpack observations are not available for most areas of Central Asia, we simulated the snow hydrology for the years of 2003-2010 and performed an analysis of the estimated snow.
C1 [Halquist, John; Fall, Gregory M.; Wang, Dagang] Natl Operat Hydrol Remote Sensing Ctr, Chanhassen, MN 55317 USA.
RP Halquist, J (reprint author), Natl Operat Hydrol Remote Sensing Ctr, 1735 Lake Dr W, Chanhassen, MN 55317 USA.
EM john.halquist@noaa.gov
NR 3
TC 0
Z9 0
U1 0
U2 2
PU INT ASSOC HYDROLOGICAL SCIENCES
PI WALLINGFORD
PA INST OF HYDROLOGY, WALLINGFORD OX10 8BB, ENGLAND
SN 0144-7815
BN 978-1-907161-27-8
J9 IAHS-AISH P
PY 2012
VL 352
BP 321
EP 324
PG 4
WC Remote Sensing; Water Resources
SC Remote Sensing; Water Resources
GA BDK60
UT WOS:000313596500073
ER
PT S
AU Maksyutov, S
Takagi, H
Belikov, DA
Saeki, T
Zhuravlev, R
Ganshin, A
Lukyanov, A
Yoshida, Y
Oshchepkov, S
Bril, A
Saito, M
Oda, T
Valsala, VK
Saito, R
Andres, RJ
Conway, T
Tans, P
Yokota, T
AF Maksyutov, Shamil
Takagi, Hiroshi
Belikov, Dmitry A.
Saeki, Tazu
Zhuravlev, Ruslan
Ganshin, Alexander
Lukyanov, Alexander
Yoshida, Yukio
Oshchepkov, Sergey
Bril, Andrey
Saito, Makoto
Oda, Tomohiro
Valsala, Vinu K.
Saito, Ryu
Andres, Robert J.
Conway, Thomas
Tans, Pieter
Yokota, Tatsuya
BE Kawamiya, M
Krishnamurti, TN
Maksyutov, S
TI Estimation of regional surface CO2 fluxes with GOSAT observations using
two inverse modeling approaches
SO REMOTE SENSING AND MODELING OF THE ATMOSPHERE, OCEANS, AND INTERACTIONS
IV
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Remote Sensing and Modeling of the Atmosphere, Oceans, and
Interactions IV
CY OCT 31-NOV 01, 2012
CL Kyoto, JAPAN
SP SPIE, Japan Aerosp Explorat Agcy (JAXA), Natl Aeronaut & Space Adm (NASA), Natl Inst Informat & Commun Technol, Commemorat Org Japan World Exposit, Indian Space Res Org (ISRO), State Key Lab Remote Sensing Sci
DE carbon dioxide; remote sensing; inverse modeling; surface fluxes
ID GASES OBSERVING SATELLITE; ATMOSPHERIC CO2; CARBON-DIOXIDE; RETRIEVAL
ALGORITHM; TECHNICAL NOTE; TRANSPORT; VALIDATION; VARIABILITY;
DELTA-C-13; FOREST
AB Inverse estimation of surface CO2 fluxes is performed with atmospheric transport model using ground-based and GOSAT observations. The NIES-retrieved CO2 column mixing (X-CO2) and column averaging kernel are provided by GOSAT Level 2 product v. 2.0 and PPDF-DOAS method. Monthly mean CO2 fluxes for 64 regions are estimated together with a global mean offset between GOSAT data and ground-based data. We used the fixed-lag Kalman filter to infer monthly fluxes for 42 sub-continental terrestrial regions and 22 oceanic basins. We estimate fluxes and compare results obtained by two inverse modeling approaches. In basic approach adopted in GOSAT Level 4 product v. 2.01, we use aggregation of the GOSAT observations into monthly mean over 5x5 degree grids, fluxes are estimated independently for each region, and NIES atmospheric transport model is used for forward simulation. In the alternative method, the model-observation misfit is estimated for each observation separately and fluxes are spatially correlated using EOF analysis of the simulated flux variability similar to geostatistical approach, while transport simulation is enhanced by coupling with a Lagrangian transport model Flexpart. Both methods use using the same set of prior fluxes and region maps. Daily net ecosystem exchange (NEE) is predicted by the Vegetation Integrative SImulator for Trace gases (VISIT) optimized to match seasonal cycle of the atmospheric CO2. Monthly ocean-atmosphere CO2 fluxes are produced with an ocean pCO(2) data assimilation system. Biomass burning fluxes were provided by the Global Fire Emissions Database (GFED); and monthly fossil fuel CO2 emissions are estimated with ODIAC inventory. The results of analyzing one year of the GOSAT data suggest that when both GOSAT and ground-based data are used together, fluxes in tropical and other remote regions with lower associated uncertainties are obtained than in the analysis using only ground-based data. With version 2.0 of L2 X-CO2 the fluxes appear reasonable for many regions and seasons, however there is a need for improving the L2 bias correction, data filtering and the inverse modeling method to reduce estimated flux anomalies visible in some areas. We also observe that application of spatial flux correlations with EOF-based approach reduces flux anomalies.
C1 [Maksyutov, Shamil; Takagi, Hiroshi; Belikov, Dmitry A.; Saeki, Tazu; Yoshida, Yukio; Oshchepkov, Sergey; Bril, Andrey; Yokota, Tatsuya] Natl Inst Environm Studies, CGER, 16-2 Onogawa, Tsukuba, Ibaraki 3058506, Japan.
[Zhuravlev, Ruslan; Ganshin, Alexander; Lukyanov, Alexander] Cent Aerol Observ, Dolgoprudnyi, Russia.
[Saito, Makoto] CEA Orme Merisiers, Lab Sci Climate & Environm, F-91191 Gif Sur Yvette, France.
[Oda, Tomohiro] Colorado State Univ, CIRA, Boulder, CO 80523 USA.
[Oda, Tomohiro; Conway, Thomas; Tans, Pieter] GMD, NOAA ESRL, Boulder, CO 80305 USA.
[Valsala, Vinu K.] Indian Inst Trop Meteorol, Pune 411008, Maharashtra, India.
[Saito, Ryu] GRIGC, JAMSTEC, Kanazawa Ku, Kanagawa 2360001, Japan.
[Belikov, Dmitry A.] Natl Inst Polar Res, Tachikawa, Tokyo 1908518, Japan.
RP Maksyutov, S (reprint author), Natl Inst Environm Studies, CGER, 16-2 Onogawa, Tsukuba, Ibaraki 3058506, Japan.
EM shamil@nies.go.jp
RI Maksyutov, Shamil/G-6494-2011; Ganshin, Alexander/C-1626-2014; Belikov,
Dmitry/I-9877-2016
OI Maksyutov, Shamil/0000-0002-1200-9577; Ganshin,
Alexander/0000-0002-2835-3145;
NR 57
TC 3
Z9 3
U1 2
U2 22
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-9268-5
J9 PROC SPIE
PY 2012
VL 8529
AR 85290G
DI 10.1117/12.979664
PG 12
WC Remote Sensing; Optics
SC Remote Sensing; Optics
GA BDL52
UT WOS:000313662700009
ER
PT S
AU Masutani, M
Riishojgaard, LP
Woollen, JS
Casey, S
AF Masutani, Michiko
Riishojgaard, Lars Peter
Woollen, John S.
Casey, Sean
BE Kawamiya, M
Krishnamurti, TN
Maksyutov, S
TI Observing System Simulation Experiments at Joint Center for Satellite
Data Assimilation
SO REMOTE SENSING AND MODELING OF THE ATMOSPHERE, OCEANS, AND INTERACTIONS
IV
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Remote Sensing and Modeling of the Atmosphere, Oceans, and
Interactions IV
CY OCT 31-NOV 01, 2012
CL Kyoto, JAPAN
SP SPIE, Japan Aerosp Explorat Agcy (JAXA), Natl Aeronaut & Space Adm (NASA), Natl Inst Informat & Commun Technol, Commemorat Org Japan World Exposit, Indian Space Res Org (ISRO), State Key Lab Remote Sensing Sci
DE Joint OSSE; Doppler wind lidar; GWOS; Model Resolution; Global Observing
System; Early-Morning-Orbit coverage; GSI; CRTM
ID WIND; IMPACT
AB Observing System Simulation Experiments (OSSEs) are a powerful tool used to assess the potential impact on numerical weather prediction skill from planned or hypothetical future observing systems. Over the last several years an international Joint OSSE collaboration has emerged centered on the use of NASA's and NOAA's data assimilation systems. A Nature Run provided by the European Centre for Medium Range Weather Forecasts (ECMWF) has undergone extensive validation, and a set of simulated reference observations have been subjected to a set of calibration experiments. One of the first candidate observing systems assessed by this system is a wind lidar based on the Global Wind Observing Sounder (GWOS) concept developed by NASA in response to the National Research Council (NRC) Decadal Survey. OSSEs were conducted at Joint Center for Satellite Data Assimilation (JCSDA) and positive impacts from GWOS on medium range weather forecast were demonstrated.
For OSSEs, all major observations used for the data assimilation have to be simulated as a control observation in addition to the observations being tested by an OSSE. Simulation of control observations and OSSE calibration are the most significant initial investments for an OSSE before it can be used to evaluate the data impact of future instruments. The Nature Run data and control observation that were simulated at NOAA from the Nature Run are made available from a NASA portal and NCAR for international collaborative Joint OSSEs.
Recent developments and plans for a JCSDA OSSE based on a 2012 observation system will be also described.
C1 [Masutani, Michiko] NOAA, NWS, NCEP, EMC, NCWCP 5830 Univ Res Court, College Pk, MD 20740 USA.
[Masutani, Michiko] Wyle Information Syst Inc, El Segundo, CA USA.
[Riishojgaard, Lars Peter; Casey, Sean] Univ Maryland, College Pk, MD USA.
[Woollen, John S.] IM Syst Grp, Camp Springs, MD USA.
RP Masutani, M (reprint author), NOAA, NWS, NCEP, EMC, NCWCP 5830 Univ Res Court, College Pk, MD 20740 USA.
EM Michiko.Masutani@noaa.gov
NR 25
TC 0
Z9 0
U1 0
U2 1
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-9268-5
J9 PROC SPIE
PY 2012
VL 8529
AR 85290B
DI 10.1117/12.977561
PG 10
WC Remote Sensing; Optics
SC Remote Sensing; Optics
GA BDL52
UT WOS:000313662700006
ER
PT J
AU Gurney, LR
Bentz, DP
Sato, T
Weiss, WJ
AF Gurney, Lisa R.
Bentz, Dale P.
Sato, Taijiro
Weiss, W. Jason
TI Reducing Set Retardation in High-Volume Fly Ash Mixtures with the Use of
Limestone Improving Constructability for Sustainability
SO TRANSPORTATION RESEARCH RECORD
LA English
DT Article
ID CEMENT
AB High-volume fly ash (HVFA) concretes are attractive not only because they reduce cement content and the associated greenhouse gases, but also because they avoid landfilling excessive quantities of fly ash. These sustainability benefits are often tempered by practical constructability limitations that may exist for HVFA concretes: retardation and diminution of the early-age reaction, delay in setting (and finishing operations), and lower early-age strength. This paper explores the alleviation of these deficiencies in HVFA mixtures by the incorporation of fine limestone powders into ternary blends. Isothermal calorimetry and Vicat needle penetration measurements are employed to assess reaction rates and setting times, respectively. A systematic variation of the content and fineness of the limestone powder in mixtures containing either a Class C or a Class F fly ash indicates that setting times are linearly correlated with the surface area supplied by the limestone. Comparison of a limestone system to a system containing an inert titanium dioxide of similar particle size indicates that the acceleration and amplification effects of the limestone can be attributed to both physical (nucleation) and chemical (additional calcium ions) processes. The results indicate that ternary blends with 40% of the cement by volume replaced by 30% to 35% fly ash and 5% to 10% limestone at a constant water volume fraction can be achieved without significant delay in setting.
C1 [Gurney, Lisa R.; Bentz, Dale P.] NIST, Engn Lab, Gaithersburg, MD 20899 USA.
[Sato, Taijiro] Natl Res Council Canada, Ottawa, ON K1A 0R6, Canada.
[Weiss, W. Jason] Purdue Univ, Sch Civil Engn, W Lafayette, IN 47907 USA.
RP Bentz, DP (reprint author), NIST, Engn Lab, Gaithersburg, MD 20899 USA.
EM dale.bentz@nist.gov
NR 14
TC 15
Z9 15
U1 1
U2 8
PU NATL ACAD SCIENCES
PI WASHINGTON
PA 2101 CONSTITUTION AVE NW, WASHINGTON, DC 20418 USA
SN 0361-1981
J9 TRANSPORT RES REC
JI Transp. Res. Record
PY 2012
IS 2290
BP 139
EP 146
DI 10.3141/2290-18
PG 8
WC Engineering, Civil; Transportation; Transportation Science & Technology
SC Engineering; Transportation
GA 066NZ
UT WOS:000313228800019
ER
PT S
AU Engvall, E
Holloway, CL
Ladbury, JM
Kildal, PS
AF Engvall, Erik
Holloway, Christopher L.
Ladbury, John M.
Kildal, Per-Simon
GP IEEE
TI A Study of Uncertainty Models in a Reverberation Chamber at NIST
SO 2012 IEEE ANTENNAS AND PROPAGATION SOCIETY INTERNATIONAL SYMPOSIUM
(APSURSI)
SE IEEE Antennas and Propagation Society International Symposium
LA English
DT Proceedings Paper
CT IEEE International Symposium on Antennas and Propagation
CY JUL 08-14, 2012
CL Chicago, IL
SP Inst Electr Electron Engineers, IEEE Antennas & Propaga Soc
AB The reverberation chamber has become a good alternative for over-the-air (OTA) testing of small antennas. Here the uncertainty of total radiated power measurements is evaluated for a reverberation chamber at National Institute of Standards and Technology (NIST), Boulder, Colorado. A procedure for measuring the uncertainty based on the standard deviation of nine different antenna orientations in the RC has been used.
A model for the uncertainty, developed at Chalmers University of Technology, has been evaluated for measurements in this chamber. The model is based on the standard deviation of a Gaussian distribution for both the non-line-of-sight and the line-of-sight components together with an average Rician K-factor.
It is found that the agreement between theoretical and experimental values are good and that the model describes the uncertainty well for both various loading in the chamber and various amount of platform stirring.
C1 [Engvall, Erik; Holloway, Christopher L.; Ladbury, John M.] NIST, Electromagnet Div, Boulder, CO USA.
RP Engvall, E (reprint author), NIST, Electromagnet Div, Boulder, CO USA.
EM karl.engvall@nist.gov
NR 8
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1522-3965
BN 978-1-4673-0462-7
J9 IEEE ANTENNAS PROP
PY 2012
PG 2
WC Engineering, Electrical & Electronic; Telecommunications
SC Engineering; Telecommunications
GA BDB29
UT WOS:000312442301430
ER
PT S
AU Francis, MH
AF Francis, Michael H.
GP IEEE
TI Estimating Far-Field Errors Due to Mechanical Errors in Spherical
Near-Field Scanning
SO 2012 IEEE ANTENNAS AND PROPAGATION SOCIETY INTERNATIONAL SYMPOSIUM
(APSURSI)
SE IEEE Antennas and Propagation Society International Symposium
LA English
DT Proceedings Paper
CT IEEE International Symposium on Antennas and Propagation
CY JUL 08-14, 2012
CL Chicago, IL
SP Inst Electr Electron Engineers, IEEE Antennas & Propaga Soc
AB When the mechanical requirements are established for a spherical near-field scanner, it is desirable to estimate what effects the expected mechanical errors will have on the determination of the far field of potential antennas that will be measured on the proposed range. The National Institute of Standards and Technology (NIST) has investigated the effects of mechanical errors for a proposed outdoor spherical near-field range to be located at Ft. Huachuca, AZ. This investigation was performed by use of theoretical far-field patterns and introducing position errors into simulated spherical near-field measurements. Far-field patterns were then calculated with and without probe-position correction to determine the effects of mechanical position errors. This paper reports the results of these investigations.
C1 NIST, Boulder, CO 80305 USA.
RP Francis, MH (reprint author), NIST, Boulder, CO 80305 USA.
EM francis@boulder.nist.gov
NR 4
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1522-3965
BN 978-1-4673-0462-7
J9 IEEE ANTENNAS PROP
PY 2012
PG 2
WC Engineering, Electrical & Electronic; Telecommunications
SC Engineering; Telecommunications
GA BDB29
UT WOS:000312442301256
ER
PT J
AU Bossart, G
Arheart, K
Hunt, M
Clauss, T
Leppert, L
Roberts, K
McCulloch, S
Goldstein, JD
Gonzalez, C
Sweeney, J
Stone, R
Fair, PA
Cray, C
AF Bossart, Gregory
Arheart, Kristopher
Hunt, Michael
Clauss, Tonya
Leppert, Lynda
Roberts, Kevin
McCulloch, Stephen
Goldstein, Juli D.
Gonzalez, Christie
Sweeney, Jay
Stone, Rae
Fair, Patricia A.
Cray, Carolyn
TI Protein Electrophoresis of Serum from Healthy Atlantic Bottlenose
Dolphins (Tursiops truncatus)
SO AQUATIC MAMMALS
LA English
DT Article
DE serum protein electrophoresis; albumin; bromcresol green; bottlenose
dolphin; Tursiops truncatus
ID AGAROSE-GEL ELECTROPHORESIS; DYE-BINDING METHOD; HEPARINIZED PLASMA;
BROMOCRESOL GREEN; ALBUMIN; RAT; OVERESTIMATION; DIAGNOSIS; DOG
AB Serum protein electrophoresis (SPEP) has been recognized as an important tool in human and veterinary medicine. The present study investigated the use of SPEP in serum samples from healthy Atlantic bottlenose dolphins (Tursiops truncatus). Fraction delimitation was defined for the standardization of use by other laboratories. The imprecision of this method was comparable to reports in other species. A significant difference between albumin levels determined by SPEP and the traditional chemistry analyzer method (bromcresol green [BCG]) was observed (BCG = 3.38 +/- 0.46 g/dL, and SPEP = 3.74 +/- 0.43 g/dL, p < 0.0001). Bland-Altman analysis also showed that these two methods were not identical. Notably, several differences were observed between SPEP-derived values using samples from dolphins under human care vs free-ranging dolphins. The total protein was significantly increased in serum from free-ranging dolphins, and the A/G ratio was found to be significantly decreased (under human care: 1.91 +/- 0.39 g/dL, free ranging: 1.07 +/- 0.39 g/dL, p <= 0.05). The latter change was related to a significantly lower albumin fraction and 2.3-fold increase in gamma globulins. In total, this study provides method standardization and preliminary data toward the generation of reference intervals for this species.
C1 [Bossart, Gregory; Cray, Carolyn] Univ Miami, Miller Sch Med, Div Comparat Pathol, Miami, FL 33101 USA.
[Bossart, Gregory; Hunt, Michael; Clauss, Tonya; Leppert, Lynda] Georgia Aquarium, Atlanta, GA 30313 USA.
[Bossart, Gregory; McCulloch, Stephen; Goldstein, Juli D.; Gonzalez, Christie] Florida Atlantic Univ, Harbor Branch Oceanog Inst, Ctr Marine Ecosyst Hlth, Marine Mammal Res & Conservat Program, Ft Pierce, FL 34946 USA.
[Arheart, Kristopher] Univ Miami, Miller Sch Med, Dept Epidemiol & Publ Hlth, Miami, FL 33101 USA.
[Roberts, Kevin] Marineland Dolphin Adventure, St Augustine, FL 32080 USA.
[Sweeney, Jay; Stone, Rae] Dolphin Quest Inc, San Diego, CA 92107 USA.
[Fair, Patricia A.] NOAA, Natl Ocean Serv, Ctr Coastal Environm Hlth & Biomol Res, Charleston, SC 29412 USA.
RP Bossart, G (reprint author), Univ Miami, Miller Sch Med, Div Comparat Pathol, POB 016960,R-46, Miami, FL 33101 USA.
EM gbossart@georgiaaquarium.org
FU State of Florida Protect Wild Dolphins specialty license plate program;
Georgia Aquarium
FX The free-ranging bottlenose dolphin Health and Environmental Risk
Assessment (HERA) research was conducted under National Marine Fisheries
Service Permit No. 998-1678-02 and issued Florida Atlantic University
IACUC Protocol Number A10-13. Funding was provided by the State of
Florida Protect Wild Dolphins specialty license plate program and the
Georgia Aquarium. The authors thank the entire HERA project staff and
Georgia Aquarium and Dolphin Quest veterinary and husbandry staff for
their efforts in this project. The authors thank Marineland Dolphin
Adventure staff members Jessica Aditays, Melissa Berdine, Donna Peaslee,
Cat Rust, Dani Salvatore, Stacey Spong, Jamie Stanley-Bahnsen, Kevin
Stephens, and Lindsay Tafs and Georgia Aquarium staff members Elizabeth
Beasley, Lloyd Dodge III, Rachel Friedman, Jeff Fogle, Ann Hoedt, Ashley
Gerhart, Dru Jojola, Kristen Knowles, Kevin Krueger, and Lisa Mignogna.
We also thank Wayne McFee for age analysis on the free-ranging dolphins.
NR 33
TC 2
Z9 2
U1 3
U2 11
PU EUROPEAN ASSOC AQUATIC MAMMALS
PI MOLINE
PA C/O DR JEANETTE THOMAS, BIOLOGICAL SCIENCES, WESTERN ILLIONIS UNIV-QUAD
CITIES, 3561 60TH STREET, MOLINE, IL 61265 USA
SN 0167-5427
J9 AQUAT MAMM
JI Aquat. Mamm.
PY 2012
VL 38
IS 4
BP 412
EP 417
DI 10.1578/AM.38.4.2012.412
PG 6
WC Marine & Freshwater Biology; Zoology
SC Marine & Freshwater Biology; Zoology
GA 066JJ
UT WOS:000313216600006
ER
PT J
AU Garland, EC
Lilley, MS
Goldizen, AW
Rekdahl, ML
Garrigue, C
Noad, MJ
AF Garland, Ellen C.
Lilley, Matthew S.
Goldizen, Anne W.
Rekdahl, Melinda L.
Garrigue, Claire
Noad, Michael J.
TI Improved versions of the Levenshtein distance method for comparing
sequence information in animals' vocalisations: tests using humpback
whale song
SO BEHAVIOUR
LA English
DT Article
DE Levenshtein distance; behavioural sequence; animal communication; song;
humpback whale; Megaptera novaeangliae
ID ADULT INDIGO BUNTINGS; MEGAPTERA-NOVAEANGLIAE; PASSERINA-CYANEA; ZEBRA
FINCH; CLASSIFICATION; PATTERNS; BEHAVIOR; DISPLAY; SCALE
AB Animals can communicate using visual and acoustic displays to convey information to conspecifics. In some cases, such displays are produced in highly stereotyped and repetitive sequences. Here we use a quantitative analysis technique, the Levenshtein distance, to assess similarity in sequences of displays at both the population and individual levels. We review two existing variations of the method and present two new variations that complement and extend these existing techniques. Three of the methods include the use of a median string sequence and three use a normalisation of the original equation. Humpback whale song theme sequences from multiple populations, years and song types (different variations of the display) are used as examples to illustrate the application and success of each variation. A novel outcome of this technique is that it can produce a threshold measure of similarity to assess when behavioural sequences are so dissimilar that they must be considered different, with a measure of the probability of such clusters being distinct. The Levenshtein distance is applicable to all behavioural data produced in sequences and its use should not be limited to acoustical studies.
C1 [Lilley, Matthew S.] SecuritEase Int, Petone 5012, New Zealand.
[Goldizen, Anne W.] Univ Queensland, Sch Biol Sci, St Lucia, Qld 4072, Australia.
[Garrigue, Claire] Operat Cetaces, Noumea 98802, New Caledonia.
[Garland, Ellen C.; Garrigue, Claire; Noad, Michael J.] S Pacific Whale Res Consortium, Avarua, Rarotonga, Cook Islands.
[Garland, Ellen C.; Rekdahl, Melinda L.; Noad, Michael J.] Univ Queensland, Sch Vet Sci, Cetacean Ecol & Acoust Lab, Gatton, Qld 4343, Australia.
RP Garland, EC (reprint author), NOAA, Natl Marine Mammal Lab, Alaska Fisheries Sci Ctr, 7600 Sand Point Way NE, Seattle, WA 98115 USA.
EM ellen.garland@gmail.com
RI Noad, Michael/D-7975-2013; Goldizen, Anne/G-7366-2012; Garrigue,
Claire/I-4704-2016
OI Noad, Michael/0000-0002-2799-8320; Goldizen, Anne/0000-0003-0101-4108;
Garrigue, Claire/0000-0002-8117-3370
FU Sea World Research and Rescue Foundation Inc.; Australian Department of
the Environment, Water, Heritage and the Arts; Winifred Violet Scott
Estate; International Fund for Animal Welfare (IFAW); Tangalooma Marine
Education and Research Foundation; Australian Postgraduate awards; US
Office of Naval Research; Australian Defence Science and Technology
Organisation; Natural Heritage Trust (Australia) through the South
Pacific Whale Research Consortium
FX We thank Phillip Clapham and Vincent Janik for critical reading of an
earlier version of the manuscript. The study was supported by grants
from the Sea World Research and Rescue Foundation Inc., the Australian
Department of the Environment, Water, Heritage and the Arts and the
Winifred Violet Scott Estate to M.J.N. and E.C.G, and from the
International Fund for Animal Welfare (IFAW) to the South Pacific Whale
Research Consortium (SPWRC). Additional funding from the Tangalooma
Marine Education and Research Foundation was provided to M.J.N. and
E.C.G., and E.C.G. and M.L.R. were supported by Australian Postgraduate
awards. We thank the other members of the Consortium's executive
committee (C. Scott Baker, Phillip Clapham, Mike Donoghue, Nan Hauser,
Dave Paton and M. Michael Poole) and executive officers (Simon
Childerhouse, Rochelle Constantine, Sue Miller Taei and Debbie Steel).
Eastern Australian song collection was funded by the US Office of Naval
Research and the Australian Defence Science and Technology Organisation.
Surveys of humpback whales in New Caledonia were made possible by
contributions from Fondation d'Entreprise Total and Total Pacifique, the
Provinces Sud, North and Isles, and Inco S.A. We thank Remi Dodemont,
Jacqui Greaves, Dominique Boillon, Veronique Perard, Magaly Chambellant
and all the volunteers that helped in the field. The Natural Heritage
Trust (Australia) funded the 2003 survey in Vanuatu through the South
Pacific Whale Research Consortium.
NR 58
TC 9
Z9 10
U1 1
U2 14
PU BRILL ACADEMIC PUBLISHERS
PI LEIDEN
PA PLANTIJNSTRAAT 2, P O BOX 9000, 2300 PA LEIDEN, NETHERLANDS
SN 0005-7959
J9 BEHAVIOUR
JI Behaviour
PY 2012
VL 149
IS 13-14
BP 1413
EP 1441
DI 10.1163/1568539X-00003032
PG 29
WC Behavioral Sciences; Zoology
SC Behavioral Sciences; Zoology
GA 066PF
UT WOS:000313232000007
ER
PT S
AU Cao, CY
Xiong, XX
Blonski, S
Liu, QH
Guenther, B
Weng, FZ
AF Cao, Changyong
Xiong, Xiaoxiong
Blonski, Slawormir
Liu, Quanhua
Guenther, Bruce
Weng, Fuzhong
BE Shimoda, H
Xiong, X
TI Suomi NPP VIIRS On-orbit Performance, Data quality, and New Applications
SO EARTH OBSERVING MISSIONS AND SENSORS: DEVELOPMENT, IMPLEMENTATION, AND
CHARACTERIZATION II
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Earth Observing Missions and Sensors - Development,
Implementation, and Characterization II
CY OCT 30-NOV 01, 2012
CL Kyoto, JAPAN
SP SPIE, Japan Aerosp Explorat Agcy (JAXA), Natl Aeronaut & Space Adm (NASA), Natl Inst Informat & Commun Technol, Commemorat Org Japan World Exposit, Indian Space Res Org (ISRO), State Key Lab Remote Sensing Sci
AB The Visible/Infrared Imager Radiometer Suite (VIIRS) is one of the key instruments on the Suomi NPP and future JPSS missions, succeeding the legacy NOAA/AVHRR, EOS/MODIS, SeaWiFS, and DMSP/OLS as the new generation of operational imaging radiometer. With 22 spectral bands covering wavelengths from 0.41 to 12.5um, VIIRS provides data for the production of 25 Environmental Data Records (EDRs) with its calibrated and geolocated Sensor Data Records (SDRs). This paper provides an overview of NPP VIIRS postlaunch instrument performance, onboard and vicarious calibration/validation, as well as unique capabilities of the VIIRS and potential new applications. Since launch, the VIIRS SDR cal/val has been progressing well. Following a series of spacecraft and sensor activation and checkouts, the first VIIRS image was acquired on November 21, 2011, and all 22 bands have been producing early images by January 20, 2012. The data maturity has reached beta status in early spring of 2012, and provisional status is expected to be achieved by November 2012. Major challenges thus far include the unexpected fast degradation in some near infrared channels, and the unprecedented data volume and complexity of the ground processing system. Our goal is to ensure the radiometric, spectral, and geospatial accuracy, and establish consistency with past and future sensors to support the weather, climate, ocean, and other environmental applications.
C1 [Cao, Changyong; Weng, Fuzhong] NOAA, Washington, DC 20230 USA.
[Xiong, Xiaoxiong] NASA, Goddard Space Flight Ctr, Washington, DC USA.
[Blonski, Slawormir; Liu, Quanhua] Univ Maryland, CICS, College Pk, MD USA.
[Guenther, Bruce] Stellar Solut Inc, Palo Alto, CA USA.
RP Cao, CY (reprint author), NOAA, Washington, DC 20230 USA.
RI Liu, Quanhua/B-6608-2008; Cao, Changyong/F-5578-2010; Weng,
Fuzhong/F-5633-2010
OI Liu, Quanhua/0000-0002-3616-351X; Weng, Fuzhong/0000-0003-0150-2179
FU JPSS program office
FX The authors would like to thank the entire VIIRS SDR team for their
dedicated support to the VIIRS postlaunch cal/val. This work is
partially funded by the JPSS program office. The manuscript contents are
solely the opinions of the authors and do not constitute a statement of
policy, decision, or position on behalf of NOAA or the U.S. government.
NR 11
TC 0
Z9 0
U1 0
U2 9
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-9267-8
J9 PROC SPIE
PY 2012
VL 8528
AR 85280D
DI 10.1117/12.978997
PG 8
WC Remote Sensing; Optics
SC Remote Sensing; Optics
GA BDH77
UT WOS:000313295300010
ER
PT S
AU Liu, QH
Kwofu
Cao, CY
Xiong, J
Shao, X
Blonski, S
Weng, FZ
AF Liu, Quanhua (Mark)
Kwofu (Vincent Chiang)
Cao, Changyong
Xiong, Jack
Shao, Xi
Blonski, Slawek
Weng, Fuzhong
BE Shimoda, H
Xiong, X
TI CALIBRATION OF LOW GAIN RADIANCE AT VIIRS EMISSIVE BAND (M13) and VIIRS
IMAGE ABOUT MOON TEMPERATURE
SO EARTH OBSERVING MISSIONS AND SENSORS: DEVELOPMENT, IMPLEMENTATION, AND
CHARACTERIZATION II
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Earth Observing Missions and Sensors - Development,
Implementation, and Characterization II
CY OCT 30-NOV 01, 2012
CL Kyoto, JAPAN
SP SPIE, Japan Aerosp Explorat Agcy (JAXA), Natl Aeronaut & Space Adm (NASA), Natl Inst Informat & Commun Technol, Commemorat Org Japan World Exposit, Indian Space Res Org (ISRO), State Key Lab Remote Sensing Sci
DE VIIRS; Thermal Emissive Band; M13 Calibration at a low gain
AB Early assessment of the VIIRS thermal emissive bands (TEBs) show that all VIIRS TEBs except M13 are stable and exceed the specifications. M13 is a dual gain band, and is used for determining the surface temperature at low radiance (high gain) and fire detection at high radiance (low gain). At a low gain stage, the onboard blackbody temperature at an operational temperature of 292 Kelvin is far below the lowest temperature at the low gain, which prevents from any attempt to radiometric calibration. This study found that the VIIRS calibration data during the blackbody temperature warm up and cool down (WUCD) may be useful to check the gain stability and to estimate noise equivalent deviation of temperatures (NEdT). During the VIIRS blackbody temperature warm up and cool down, the blackbody temperature was cooled down to 267 K and warmed up to 315 K. The contrast at the low gain for M13 band between blackbody and space views may be useful, although the highest blackbody temperature is still below the low boundary for the low gain. Moon surface temperature can be as hot as 400 Kelvin, high enough for M13 band radiometric calibration at a low gain. The advantages using the observation data of Moon are that it is very stable and there is no gaseous absorption. However, Moon surface emissivity for infrared spectrum needs to be known. This study found that Moon may be used to check measurement range of the VIIRS M13 band at a low gain. We have developed a calibration algorithm to determine the moon temperature and generated the first VIIRS image about moon temperature. There are some other sources such gas flares that may also be used to estimate the radiometric accuracy at low gain.
C1 [Liu, Quanhua (Mark); Blonski, Slawek] Univ Maryland, ESSIC, 5825 Univ Res Court, College Pk, MD 20740 USA.
[Kwofu (Vincent Chiang); Xiong, Jack] NASA, GFSC, Greenbelt, MD 20770 USA.
[Cao, Changyong; Weng, Fuzhong] Univ Res Court, NOAA NESDIS STAR Satellite Meteorol & Climatol Di, College Pk, MD 20740 USA.
[Shao, Xi] Univ Maryland, College Pk, MD 20740 USA.
RP Liu, QH (reprint author), Univ Maryland, ESSIC, 5825 Univ Res Court, College Pk, MD 20740 USA.
EM quanhua.liu@noaa.gov
RI Liu, Quanhua/B-6608-2008; Cao, Changyong/F-5578-2010; Shao,
Xi/H-9452-2016; Weng, Fuzhong/F-5633-2010
OI Liu, Quanhua/0000-0002-3616-351X; Weng, Fuzhong/0000-0003-0150-2179
FU JPSS
FX This study is supported through funding from JPSS Data Products and
Algorithms.
NR 7
TC 2
Z9 2
U1 1
U2 4
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-9267-8
J9 PROC SPIE
PY 2012
VL 8528
AR 85280O
DI 10.1117/12.979701
PG 11
WC Remote Sensing; Optics
SC Remote Sensing; Optics
GA BDH77
UT WOS:000313295300018
ER
PT S
AU Sampson, S
Wolf, W
Li, A
Yu, T
Garcia, R
Martin, G
Liu, X
Straka, W
Fan, M
Schiffer, E
Goldberg, M
AF Sampson, S.
Wolf, Walter
Li, A.
Yu, T.
Garcia, R.
Martin, G.
Liu, X.
Straka, W.
Fan, M.
Schiffer, E.
Goldberg, M.
BE Shimoda, H
Xiong, X
TI GOES-R AWG PRODUCT PROCESSING SYSTEM FRAMEWORK
SO EARTH OBSERVING MISSIONS AND SENSORS: DEVELOPMENT, IMPLEMENTATION, AND
CHARACTERIZATION II
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Earth Observing Missions and Sensors - Development,
Implementation, and Characterization II
CY OCT 30-NOV 01, 2012
CL Kyoto, JAPAN
SP SPIE, Japan Aerosp Explorat Agcy (JAXA), Natl Aeronaut & Space Adm (NASA), Natl Inst Informat & Commun Technol, Commemorat Org Japan World Exposit, Indian Space Res Org (ISRO), State Key Lab Remote Sensing Sci
DE GOES-R; ABI; GLM; AWG; AIT; data processing
AB NOAA/NESDIS/STAR has designed, developed, and implemented the Geostationary Operational Environmental Satellite - R Series (GOES-R) Algorithm Working Group (AWG) Product Processing System Framework. The Framework enabled the development and testing of the Level 2 Advance Baseline Imager (ABI) and the GOES-R Lightning Mapper (GLM) products within a single system. Fifty-six GOES-R ABI algorithms and one GLM algorithm have been integrated and run within the framework with product precedence. The Framework has been modified to be a plug-and-play system with the scientific algorithms. To enable the plug-and-play capabilities, the fifty-seven ABI and GLM algorithms were adjusted such that any data required by the algorithm is brought into the algorithm through function calls. These modifications allowed an algorithm to be developed either within the Framework or within the scientist's offline research system. This approach provided both the algorithm developers and algorithm integrators the ability to work on the same software since the algorithm may be "dropped" into both systems resulting in simple algorithm rollbacks. The design features and the current status of the framework will be discussed.
C1 [Sampson, S.; Li, A.; Yu, T.; Liu, X.; Fan, M.] Riverside Techol Inc, Ft Collins, CO 80528 USA.
[Wolf, Walter; Goldberg, M.] NOAA NESDIS STAR, Camp Springs, MD 20746 USA.
[Garcia, R.; Straka, W.; Schiffer, E.] CIMSS, Madison, WI 53706 USA.
RP Sampson, S (reprint author), Riverside Techol Inc, Ft Collins, CO 80528 USA.
NR 2
TC 0
Z9 0
U1 0
U2 1
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-9267-8
J9 PROC SPIE
PY 2012
VL 8528
AR 85281N
DI 10.1117/12.977556
PG 6
WC Remote Sensing; Optics
SC Remote Sensing; Optics
GA BDH77
UT WOS:000313295300041
ER
PT S
AU Tanaka, T
Shiomi, K
Kawakami, S
Saitoh, N
Imasu, R
Inoue, M
Morino, I
Uchino, O
Sweeney, C
Tans, P
AF Tanaka, Tomoaki
Shiomi, Kei
Kawakami, Shuji
Saitoh, Naoko
Imasu, Ryoichi
Inoue, Makoto
Morino, Isamu
Uchino, Osamu
Sweeney, Colm
Tans, Pieter
BE Shimoda, H
Xiong, X
TI Characterization and validation of CO2 and CH4 products derived from the
GOSAT thermal infrared band
SO EARTH OBSERVING MISSIONS AND SENSORS: DEVELOPMENT, IMPLEMENTATION, AND
CHARACTERIZATION II
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Earth Observing Missions and Sensors - Development,
Implementation, and Characterization II
CY OCT 30-NOV 01, 2012
CL Kyoto, JAPAN
SP SPIE, Japan Aerosp Explorat Agcy (JAXA), Natl Aeronaut & Space Adm (NASA), Natl Inst Informat & Commun Technol, Commemorat Org Japan World Exposit, Indian Space Res Org (ISRO), State Key Lab Remote Sensing Sci
DE GOSAT; TIR; carbon dioxide; methane; aircraft
ID TOWER
AB The Greenhouse gases Observing SATellite (GOSAT) monitors carbon dioxide (CO2) and methane (CH4) globally from space. The Thermal and Near infrared Sensor for Carbon Observation Fourier-Transform Spectrometer (TANSO-FTS) installed on GOSAT measures spectra absorbed by atmospheric minor components including greenhouse gases in infrared wavelength regions. This paper describes the characterization and validation of the CO2 and CH4 profiles retrieved from the thermal infrared (TIR) spectra observed by GOSAT. The retrieved CO2 and CH4 profiles were compared with the corresponding aircraft data provided by the National Oceanic and Atmospheric Administration (NOAA)/Earth System Research Laboratory (ESRL)/Global Monitoring Division (GMD)/Carbon Cycle Greenhouse Gases (CCGG) group. This group has been conducted an aircraft program since 1992 to collect air samples mainly in North America. Each in situ aircraft profile was compared with those retrieved from TIR spectra without considering the effect of its averaging kernel. The root mean square (RMS) and bias errors of the retrieved CO2 and CH4 profiles were evaluated seasonally and with respect to atmospheric pressure. This comparison with aircraft data provides significant information for further improvement of the TIR retrieval algorithm.
C1 [Tanaka, Tomoaki; Shiomi, Kei; Kawakami, Shuji] Japan Aerosp Explorat Agcy, Earth Observat Res Ctr, Tokyo, Japan.
[Saitoh, Naoko] Chiba Univ, Ctr Environm Remote Sensing, Chiba, Japan.
[Imasu, Ryoichi] Univ Tokyo, Ctr Climate Syst Res, Tokyo, Japan.
[Inoue, Makoto; Morino, Isamu; Uchino, Osamu; Sweeney, Colm] Natl Inst Environm Studies, Tsukuba, Ibaraki, Japan.
[Sweeney, Colm; Tans, Pieter] NOAA, ESRL, GMD, Silver Spring, MD USA.
RP Tanaka, T (reprint author), Japan Aerosp Explorat Agcy, Earth Observat Res Ctr, Tokyo, Japan.
EM tanaka.tomoaki@jaxa.jp
NR 7
TC 0
Z9 0
U1 0
U2 3
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-9267-8
J9 PROC SPIE
PY 2012
VL 8528
AR 852810
DI 10.1117/12.979663
PG 4
WC Remote Sensing; Optics
SC Remote Sensing; Optics
GA BDH77
UT WOS:000313295300025
ER
PT S
AU Wang, LK
Han, Y
Tremblay, D
Weng, FZ
Goldberg, M
AF Wang, Likun
Han, Yong
Tremblay, Denis
Weng, Fuzhong
Goldberg, Mitch
BE Shimoda, H
Xiong, X
TI Inter-Comparison of NPP/CrIS Radiances with VIIRS, AIRS, and IASI: A
post-launch Calibration Assessment
SO EARTH OBSERVING MISSIONS AND SENSORS: DEVELOPMENT, IMPLEMENTATION, AND
CHARACTERIZATION II
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Earth Observing Missions and Sensors - Development,
Implementation, and Characterization II
CY OCT 30-NOV 01, 2012
CL Kyoto, JAPAN
SP SPIE, Japan Aerosp Explorat Agcy (JAXA), Natl Aeronaut & Space Adm (NASA), Natl Inst Informat & Commun Technol, Commemorat Org Japan World Exposit, Indian Space Res Org (ISRO), State Key Lab Remote Sensing Sci
DE Inter-calibration; Suomi NPP; Cross-track Infrared Sounder;
Hyperspectral
AB The Cross-track Infrared Sounder (CrIS) on the newly-launched Suomi National Polar-orbiting Partnership (Suomi NPP) is a Fourier transform spectrometer that provides soundings of the atmosphere with 1305 spectral channels, over 3 wavelength ranges: LWIR (9.14 - 15.38 mu m); MWIR (5.71 - 8.26 mu m); and SWIR (3.92 - 4.64 mu m). An accurate spectral and radiometric calibration as well as geolocation is fundamental for CrIS radiance Sensor Data Records (SDRs). In this study, through inter-and intra-satellite calibration efforts, we focus on assessment of NPP/CrIS post-launch performance. First, we compare CrIS hyperspectral radiance measurements with the Atmospheric Infrared Sounder (AIRS) on NASA Earth Observing System (EOS) Aqua and Infrared Atmospheric Sounding Interferometer (IASI) on Metop-A to examine spectral and radiometric consistence and difference among three hyperspectral IR sounders. Secondly, an accurate collocation algorithm has been developed to collocate high spatial resolution measurements from the Visible Infrared Imager Radiometer Suite (VIIRS) within each CrIS Field of View (FOV). We compare CrIS spectrally-averaged radiances with the spatially-averaged and collocated pixels from the VIIRS IR channels. Since CrIS and VIIRS are onboard on the same satellite platform, the intra-satellite comparison will allow examining the radiometric difference between CrIS and VIIRS with scene temperatures, scan angles, and orbital position. In addition, given a high spatial resolution of VIIRS channels, the VIIRS-CrIS comparison results can access geolocation accuracy of CrIS that have relatively large FOVs (14 km at ndair) using high resolution VIIRS pixel (375m or 750m at nadir)
C1 [Wang, Likun] Univ Maryland, ESSIC, 5825 Univ Res CT, College Pk, MD 20740 USA.
[Han, Yong; Weng, Fuzhong] Univ Res CT, NOAA NESDIS STAR, College Pk, MD 20740 USA.
[Tremblay, Denis] Sci Data Proc Inc, 12807 Claxton Dr, Laurel, MD 20708 USA.
[Goldberg, Mitch] NOAA, PSS Program Off, 8800 Greenbelt RD, Greenbelt RD, MD 8800 USA.
RP Wang, LK (reprint author), Univ Maryland, ESSIC, 5825 Univ Res CT, College Pk, MD 20740 USA.
EM wlikun@umd.edu
RI Han, Yong/F-5590-2010; Wang, Likun/B-7524-2008; Weng,
Fuzhong/F-5633-2010
OI Han, Yong/0000-0002-0183-7270; Wang, Likun/0000-0001-5646-9746; Weng,
Fuzhong/0000-0003-0150-2179
FU NOAA/NESDIS/Center for Satellite Applications and Research (STAR); NOAA
JPSS program office; NOAA [NA09NES4400006]; University of Maryland/ESSIC
FX This work is partially funded by the NOAA/NESDIS/Center for Satellite
Applications and Research (STAR) and the NOAA JPSS program office. Likun
Wang is also partially supported by NOAA grant NA09NES4400006
(Cooperative Institute for Climate and Satellites -CICS) at the
University of Maryland/ESSIC. The manuscript contents are solely the
opinions of the authors and do not constitute a statement of policy,
decision, or position on behalf of NOAA or the U.S. government.
NR 4
TC 3
Z9 3
U1 0
U2 6
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-9267-8
J9 PROC SPIE
PY 2012
VL 8528
AR 85280J
DI 10.1117/12.978769
PG 7
WC Remote Sensing; Optics
SC Remote Sensing; Optics
GA BDH77
UT WOS:000313295300014
ER
PT J
AU Yu, GQ
Stoltzfus, A
AF Yu, Guoqin
Stoltzfus, Arlin
TI Population Diversity of ORFan Genes in Escherichia coli
SO GENOME BIOLOGY AND EVOLUTION
LA English
DT Article
DE ORFan; lineage-specific genes; evolution; population genetics; positive
selection; negative selection
ID BACTERIAL GENOMES; EVOLUTION; ORIGIN; DROSOPHILA; SEQUENCE;
IDENTIFICATION; MUTATION; FRAME
AB The origin and evolution of "ORFans" (suspected genes without known relatives) remain unclear. Here, we take advantage of a unique opportunity to examine the population diversity of thousands of ORFans, based on a collection of 35 complete genomes of isolates of Escherichia coli and Shigella (which is included phylogenetically within E. coli). As expected from previous studies, ORFans are shorter and AT-richer in sequence than non-ORFans. We find that ORFans often are very narrowly distributed: the most common pattern is for an ORFan to be found in only one genome. We compared within-species population diversity of ORFan genes with those of two control groups of non-ORFan genes. Patterns of population variation suggest that most ORFans are not artifacts, but encode real genes whose protein-coding capacity is conserved, reflecting selection against nonsynonymous mutations. Nevertheless, nonsynonymous nucleotide diversity is higher than for non-ORFans, whereas synonymous diversity is roughly the same. In particular, there is a several-fold excess of ORFans in the highest decile of diversity relative to controls, which might be due to weaker purifying selection, positive selection, or a subclass of ORFans that are decaying.
C1 [Yu, Guoqin; Stoltzfus, Arlin] Univ Maryland, Inst Biosci & Biotechnol Res, College Pk, MD 20742 USA.
[Stoltzfus, Arlin] NIST, Div Biochem Sci, Gaithersburg, MD 20899 USA.
RP Yu, GQ (reprint author), Univ Maryland, Inst Biosci & Biotechnol Res, College Pk, MD 20742 USA.
EM yuguoqin2011@gmail.com
OI Stoltzfus, Arlin/0000-0002-0963-1357
FU National Institutes of Health [GM081511]
FX The authors thank John Moult for discussions throughout the project, and
Howard Ochman and Zvi Kelman for comments. This work was supported by a
grant from the National Institutes of Health grant (GM081511) to John
Moult and A.S. The identification of any specific commercial software
products is for the purpose of specifying a protocol, and does not imply
a recommendation or endorsement by the National Institute of Standards
and Technology.
NR 41
TC 11
Z9 11
U1 0
U2 8
PU OXFORD UNIV PRESS
PI OXFORD
PA GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND
SN 1759-6653
J9 GENOME BIOL EVOL
JI Genome Biol. Evol.
PY 2012
VL 4
IS 11
BP 1176
EP 1187
DI 10.1093/gbe/evs081
PG 12
WC Evolutionary Biology; Genetics & Heredity
SC Evolutionary Biology; Genetics & Heredity
GA 066JA
UT WOS:000313215500011
PM 23034216
ER
PT S
AU Huang, ML
Mielikainen, J
Huang, BM
Huang, HLA
Goldberg, MD
AF Huang, Melin
Mielikainen, Jarno
Huang, Bormin
Huang, H. -L. Allen
Goldberg, Mitchell D.
BE Huang, B
Plaza, AJ
TI On the acceleration of the Eta Ferrier Cloud Microphysics Scheme in the
Weather Research and Forecasting (WRF) Model using a GPU
SO HIGH-PERFORMANCE COMPUTING IN REMOTE SENSING II
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on High-Performance Computing in Remote Sensing II
CY SEP 26-27, 2012
CL Edinburgh, SCOTLAND
SP SPIE, SELEX GALILEO, THALES
DE WRF; Eta Ferrier microphysics scheme; GPU; CUDA
AB The Eta Ferrier cloud microphysics scheme is a sophisticated cloud microphysics module in the Weather Research and Forecasting (WRF) model. In this paper, we present the approach and the results of accelerating the Eta Ferrier microphysics scheme on NVIDIA Graphics Processing Units (GPUs). We discuss how our GPU implementation takes advantage of the parallelism in Eta Ferrier scheme, leading to a highly efficient GPU acceleration. We implement the Eta Ferrier microphysics scheme on NVidia GTX 590 GPU. Our 1-GPU implementation achieves an overall speedup of 37 as compared with a single thread CPU. Since Eta Ferrier microphysics scheme is only an intermediate module of the entire WRF model, the GPU I/O should not occur, i.e. its input data should be already available in the GPU global memory from previous modules and its output data should reside at the GPU global memory for later usage by other modules. The speedup without the host-device data transfer time is 272 with respect to its serial version running on 3.20GHz Intel (R) Core (TM) i7 970 CPU.
C1 [Huang, Melin; Huang, Bormin; Huang, H. -L. Allen] Univ Wisconsin Madison, Cooperat Inst Meteorol Satellite, Madison, WI 53706 USA.
[Goldberg, Mitchell D.] Natl Ocean & Atmospher Adm, NESDIS Ctr Satellite Applicat & Res, Silver Spring, MD USA.
RP Huang, BM (reprint author), Univ Wisconsin Madison, Cooperat Inst Meteorol Satellite, Madison, WI 53706 USA.
EM bormin@ssec.wisc.edu
FU National Oceanic and Atmospheric Administration (NOAA) [NA10NES4400013]
FX This work is supported by the National Oceanic and Atmospheric
Administration (NOAA) under Grant No. NA10NES4400013.
NR 23
TC 0
Z9 0
U1 0
U2 2
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-9279-1
J9 PROC SPIE
PY 2012
VL 8539
AR 85390K
DI 10.1117/12.976908
PG 11
WC Computer Science, Hardware & Architecture; Remote Sensing; Optics
SC Computer Science; Remote Sensing; Optics
GA BDH15
UT WOS:000313216400017
ER
PT S
AU Huang, ML
Mielikainen, J
Huang, B
Huang, HLA
Goldberg, MD
AF Huang, Melin
Mielikainen, Jarno
Huang, Bormin
Huang, H. -L. Allen
Goldberg, Mitchell D.
BE Huang, B
Plaza, AJ
TI GPU-Based Parallel Implementation of 5-Layer Thermal Diffusion Scheme
SO HIGH-PERFORMANCE COMPUTING IN REMOTE SENSING II
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on High-Performance Computing in Remote Sensing II
CY SEP 26-27, 2012
CL Edinburgh, SCOTLAND
SP SPIE, SELEX GALILEO, THALES
DE Weather Research and Forecasting (WRF); Graphics Processing Unit (GPU);
Compute Unified Device Architecture (CUDA); 5-layer thermal diffusion
ID MODEL
AB The Weather Research and Forecasting (WRF) is a system of numerical weather prediction and atmospheric simulation with dual purposes for forecasting and research. The WRF software infrastructure consists of several components such as dynamic solvers and physical simulation modules. WRF includes several Land-Surface Models (LSMs). The LSMs use atmospheric information, the radiative and precipitation forcing from the surface layer scheme, the radiation scheme, and the microphysics/convective scheme all together with the lands state variables and land-surface properties, to provide heat and moisture fluxes over land and sea-ice points. The WRF 5-layer thermal diffusion simulation is an LSM based on the MM5 5-layer soil temperature model with an energy budget that includes radiation, sensible, and latent heat flux. The WRF LSMs are very suitable for massively parallel computation as there are no interactions among horizontal grid points. More and more scientific applications have adopted graphics processing units (GPUs) to accelerate the computing performance. This study demonstrates our GPU massively parallel computation efforts on the WRF 5-layer thermal diffusion scheme. Since this scheme is only an intermediate module of the entire WRF model, the I/O transfer does not involve in the intermediate process. Without data transfer, this module can achieve a speedup of 36x with one GPU and 108x with four GPUs compared to a single threaded CPU processor. With CPU/GPU hybrid strategy, this module can accomplish a even higher speedup, similar to 114x with one GPU and similar to 240x with four GPUs. Meanwhile, we are seeking other approaches to improve the speeds.
C1 [Huang, Melin; Mielikainen, Jarno; Huang, Bormin; Huang, H. -L. Allen] Univ Wisconsin, Ctr Space Sci & Engn, 1225 W Dayton St, Madison, WI 53706 USA.
[Goldberg, Mitchell D.] Natl Ocean & Atmospher Adm, Ctr Satellite Applicat & Res, Camp Springs, MD 20746 USA.
RP Huang, BM (reprint author), Univ Wisconsin, Ctr Space Sci & Engn, 1225 W Dayton St, Madison, WI 53706 USA.
EM phmelin@snolab.ca; mielikai@gmail.com; bormin@ssec.wisc.edu;
allenh@ssec.wisc.edu; Mitch_Goldberg@NOAA.gov
FU National Oceanic and Atmospheric Administration (NOAA) [NA10NES4400013]
FX This work was supported by the National Oceanic and Atmospheric
Administration (NOAA) under Grant No. NA10NES4400013
NR 16
TC 0
Z9 0
U1 0
U2 0
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-9279-1
J9 PROC SPIE
PY 2012
VL 8539
AR 853908
DI 10.1117/12.978991
PG 9
WC Computer Science, Hardware & Architecture; Remote Sensing; Optics
SC Computer Science; Remote Sensing; Optics
GA BDH15
UT WOS:000313216400006
ER
PT S
AU Bintley, D
MacIntosh, MJ
Holland, WS
Dempsey, JT
Friberg, P
Kuroda, JT
Starman, EG
Thomas, HS
Walther, C
Gao, XF
Ade, PAR
Sudiwala, RV
Dunare, C
Parkes, W
Walton, AJ
Irwin, KD
Hilton, GC
Niemack, M
Amiri, M
Asboth, V
Burger, B
Chapin, EL
Halpern, M
Hasselfield, M
Woodcraft, A
AF Bintley, Dan
MacIntosh, Michael J.
Holland, Wayne S.
Dempsey, Jessica T.
Friberg, Per
Kuroda, John T.
Starman, Erik G.
Thomas, Holly S.
Walther, Craig
Gao, Xiaofeng
Ade, Peter A. R.
Sudiwala, Rashmi V.
Dunare, Camelia
Parkes, William
Walton, Anthony J.
Irwin, Kent D.
Hilton, Gene C.
Niemack, Michael
Amiri, Mandana
Asboth, Viktoria
Burger, Bryce
Chapin, Edward L.
Halpern, Mark
Hasselfield, Matthew
Woodcraft, Adam
BE Holland, WS
Zmuidzinas, J
TI Scaling the summit of the submillimetre: instrument performance of
SCUBA-2
SO MILLIMETER, SUBMILLIMETER, AND FAR-INFRARED DETECTORS AND
INSTRUMENTATION FOR ASTRONOMY VI
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Millimeter, Submillimeter, and Far-Infrared Detectors and
Instrumentation for Astronomy VI
CY JUL 03-06, 2012
CL Amsterdam, NETHERLANDS
SP SPIE
DE TES; transition edge sensor; low temperature detector; SQUID; SCUBA-2;
submillimetre astronomy
AB SCUBA-2 is a revolutionary 10,000 pixel wide-field submillimetre camera, recently commissioned and now operational at the James Clerk Maxwell Telescope (JCMT). Twin focal planes each consist of four 32 by 40 sub-arrays of superconducting Transition Edge Sensor (TES) bolometers, the largest combined low temperature bolometer arrays in operation, to provide simultaneous imaging at wavelengths of 450 and 850 microns. SCUBA-2 was designed to map large areas of sky more than 100 times faster than the original ground breaking SCUBA instrument and has achieved this goal. In this paper we describe the performance of the instrument and present results of characterising the eight science grade TES bolometer arrays. We discuss the steps taken to optimise the setup of the TES arrays to maximise mapping speed and show how critical changes to the sub-array module thermal design, the introduction of independent focal plane and 1K temperature control and enhancements to the cryogenics have combined to significantly improve the overall performance of the instrument.
C1 [Bintley, Dan; Dempsey, Jessica T.; Friberg, Per; Kuroda, John T.; Starman, Erik G.; Thomas, Holly S.; Walther, Craig] Joint Astron Ctr, 660 N Aohoku Pl, Hilo, HI 96720 USA.
[MacIntosh, Michael J.; Holland, Wayne S.; Gao, Xiaofeng; Woodcraft, Adam] UK Astron Technol Ctr, Royal Observ, Blackford Hill, Edinburgh EH9 3HJ, Midlothian, Scotland.
[Ade, Peter A. R.; Sudiwala, Rashmi V.] Cardiff Univ, Sch Phys & Astron, Cardiff CF24 3YB, Wales.
Univ Edinburgh, Inst Astron, Royal Observ, Blackford Hill, Edinburgh EH9 3HJ, Midlothian, Scotland.
[Dunare, Camelia; Parkes, William; Walton, Anthony J.] Univ Edinburgh, Scottish Microelect Ctr, Edinburgh EH9 3JF, Midlothian, Scotland.
[Irwin, Kent D.; Hilton, Gene C.; Niemack, Michael] Natl Inst Stand & Technol, Boulder, CO 80305 USA.
[Amiri, Mandana; Asboth, Viktoria; Burger, Bryce; Chapin, Edward L.; Halpern, Mark; Woodcraft, Adam] Univ British Columbia, Dept Phys & Astron, Vancouver, BC V6T 1Z1, Canada.
[Woodcraft, Adam] Cardiff Univ, QMC Instruments Ltd, Cardiff CF24 3YB, Wales.
RP Bintley, D (reprint author), Joint Astron Ctr, 660 N Aohoku Pl, Hilo, HI 96720 USA.
EM d.bintley@jach.hawaii.edu
RI Walton, Anthony/A-1550-2010; gao, xiaofeng/D-4825-2014
NR 13
TC 2
Z9 2
U1 1
U2 2
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-9153-4
J9 PROC SPIE
PY 2012
VL 8452
AR 845208
DI 10.1117/12.926613
PG 13
WC Astronomy & Astrophysics; Instruments & Instrumentation; Optics
SC Astronomy & Astrophysics; Instruments & Instrumentation; Optics
GA BDD98
UT WOS:000312884000007
ER
PT S
AU Ferkinhoff, C
Nikola, T
Parshley, SC
Stacey, GJ
Irwin, KD
Cho, HM
Niemack, M
Halpern, M
Hasselfield, M
Amiri, M
AF Ferkinhoff, Carl
Nikola, Thomas
Parshley, Stephen C.
Stacey, Gordon J.
Irwin, Kent D.
Cho, Hsiao-Mei
Niemack, Mike
Halpern, Mark
Hasselfield, Matthew
Amiri, Mandana
BE Holland, WS
Zmuidzinas, J
TI Design and first-light performance of TES bolometer arrays for
submillimeter spectroscopy with ZEUS-2
SO MILLIMETER, SUBMILLIMETER, AND FAR-INFRARED DETECTORS AND
INSTRUMENTATION FOR ASTRONOMY VI
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Millimeter, Submillimeter, and Far-Infrared Detectors and
Instrumentation for Astronomy VI
CY JUL 03-06, 2012
CL Amsterdam, NETHERLANDS
SP SPIE
DE ZEUS; CSO; submillimeter; ULIRG; high redshift; far-infrared; star
formation; galaxies
ID GALAXIES
AB We have recently commissioned the 2nd generation redshift(z) and Early Universe Spectrometer (ZEUS-2) at the Caltech Submillimeter Observatory. ZEUS-2 is a long-slit grating spectrometer (R similar to 1000) for observations in the submillimeter wavelength regime that is optimized for observations of redshifted far-infrared spectral lines from galaxies in the early universe. Here we report on the design and first light performance of the first TES bolometer array installed in ZEUS-2. This array features 280 pixels each 1.26 mm square and arranged to provide similar to 35 pixel spectra at similar to 8 spatial positions on the sky. A 1/4-wavelength back short of 100 micron and gold mesh absorber matching the impedance of free space provides near 90% quantum efficiency for the 350 and 450 micron telluric windows. Array readout is done using SQUID multiplexers and the Multichannel Electronics. We will also report on the progress to install two additional arrays tuned to provide similar performance across the remaining telluric windows between 200-850 microns.
C1 [Ferkinhoff, Carl; Nikola, Thomas; Parshley, Stephen C.; Stacey, Gordon J.] Cornell Univ, Dept Astron, Ithaca, NY 14853 USA.
[Irwin, Kent D.; Cho, Hsiao-Mei; Niemack, Mike] NIST Boulder, Boulder, CO 80305 USA.
[Halpern, Mark; Hasselfield, Matthew; Amiri, Mandana] Univ British Columbia, Dept Phys & Astron, Vancouver, BC V6T IZI, Canada.
RP Ferkinhoff, C (reprint author), Cornell Univ, Dept Astron, Ithaca, NY 14853 USA.
EM carl.ferkinhoff@cornell.edu
OI Ferkinhoff, Carl/0000-0001-6266-0213
FU NSF [AST-0096881, AST-0352855, AST-0705256, AST-0722220]; NASA
[NNX10AM09H]
FX ZEUS development and observations were supported by NSF grants
AST-0096881 and AST-0352855. ZEUS-2 development is supported by NSF
grants AST-0705256 and AST-0722220 and NASA grant NNX10AM09H.
NR 20
TC 0
Z9 0
U1 0
U2 0
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-9153-4
J9 PROC SPIE
PY 2012
VL 8452
AR 845207
DI 10.1117/12.927237
PG 12
WC Astronomy & Astrophysics; Instruments & Instrumentation; Optics
SC Astronomy & Astrophysics; Instruments & Instrumentation; Optics
GA BDD98
UT WOS:000312884000006
ER
PT S
AU Golwala, SR
Bockstiegel, C
Brugger, S
Czakon, NG
Day, PK
Downes, TP
Duan, R
Gao, JS
Gill, AK
Glenn, J
Hollister, MI
Leduc, HG
Maloney, PR
Mazin, BA
McHugh, SG
Miller, D
Noroozian, O
Nguyen, HT
Sayers, J
Schlaerth, JA
Siegel, S
Vayonakis, AK
Wilson, PR
Zmuidzinas, J
AF Golwala, Sunil R.
Bockstiegel, Clint
Brugger, Spencer
Czakon, Nicole G.
Day, Peter K.
Downes, Thomas P.
Duan, Ran
Gao, Jiansong
Gill, Amandeep K.
Glenn, Jason
Hollister, Matthew I.
LeDuc, Henry G.
Maloney, Philip R.
Mazin, Benjamin A.
McHugh, Sean G.
Miller, David
Noroozian, Omid
Nguyen, Hien T.
Sayers, Jack
Schlaerth, James A.
Siegel, Seth
Vayonakis, Anastasios K.
Wilson, Philip R.
Zmuidzinas, Jonas
BE Holland, WS
Zmuidzinas, J
TI Status of MUSIC, the MUltiwavelength Sub/millimeter Inductance Camera
SO MILLIMETER, SUBMILLIMETER, AND FAR-INFRARED DETECTORS AND
INSTRUMENTATION FOR ASTRONOMY VI
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Millimeter, Submillimeter, and Far-Infrared Detectors and
Instrumentation for Astronomy VI
CY JUL 03-06, 2012
CL Amsterdam, NETHERLANDS
SP SPIE
DE sensors; low-temperature detectors; bolometers; submillimeter-wave and
millimeter-wave receivers and detectors; microwave kinetic inductance
detectors; radio telescopes and instrumentation
ID REDUCTION; SAMBA
AB We present the status of MUSIC, the MUltiwavelength Sub/millimeter Inductance Camera, a new instrument for the Caltech Submillimeter Observatory. MUSIC is designed to have a 14', diffraction-limited field-of-view instrumented with 2304 detectors in 576 spatial pixels and four spectral bands at 0.87, 1.04, 1.33, and 1.98 mm. MUSIC will be used to study dusty star-forming galaxies, galaxy clusters via the Sunyaev-Zeldovich effect, and star formation in our own and nearby galaxies. MUSIC uses broadband superconducting phased-array slot-dipole antennas to form beams, lumped-element on-chip bandpass filters to define spectral bands, and microwave kinetic inductance detectors to sense incoming light. The focal plane is fabricated in 8 tiles consisting of 72 spatial pixels each. It is coupled to the telescope via an ambient-temperature ellipsoidal mirror and a cold reimaging lens. A cold Lyot stop sits at the image of the primary mirror formed by the ellipsoidal mirror. Dielectric and metal-mesh filters are used to block thermal infrared and out-of-band radiation. The instrument uses a pulse tube cooler and He-3/He-3/He-4 closed-cycle cooler to cool the focal plane to below 250 mK. A multilayer shield attenuates Earth's magnetic field. Each focal plane tile is read out by a single pair of coaxes and a HEMT amplifier. The readout system consists of 16 copies of custom-designed ADC/DAC and IF boards coupled to the CASPER ROACH platform. We focus on recent updates on the instrument design and results from the commissioning of the full camera in 2012.
C1 [Golwala, Sunil R.; Czakon, Nicole G.; Downes, Thomas P.; Duan, Ran; Hollister, Matthew I.; Miller, David; Sayers, Jack; Schlaerth, James A.; Siegel, Seth; Vayonakis, Anastasios K.; Zmuidzinas, Jonas] CALTECH, Div Phys Math & Astron, Pasadena, CA 91125 USA.
[Bockstiegel, Clint; Brugger, Spencer; Gao, Jiansong; Gill, Amandeep K.] Univ Colorado, CASA, Boulder, CO 80309 USA.
[Day, Peter K.; LeDuc, Henry G.; Nguyen, Hien T.; Wilson, Philip R.; Zmuidzinas, Jonas] Jet Prop Lab, Pasadena, CA 91109 USA.
[Gao, Jiansong; Noroozian, Omid] Natl Inst Stand & Technol, Quantum Sensors Grp, Boulder, CO 80305 USA.
[Mazin, Benjamin A.; McHugh, Sean G.] Natl Univ Calif, Dept Phys, Santa Barbara, CA 93106 USA.
RP Golwala, SR (reprint author), CALTECH, Div Phys Math & Astron, Pasadena, CA 91125 USA.
EM golwala@caltech.edu
RI Mazin, Ben/B-8704-2011
OI Mazin, Ben/0000-0003-0526-1114
FU Gordon and Betty Moore Foundation; Caheck Submillinteter Observatory;
NASA Postdoctoral Program fellowships; NASA Graduate Student Research
Program fellowships; [NSF/AST-0705157]; [NSF/AST-1009939];
[NSF/AST-0540882]; [NSF/AST-0838261]
FX MUSIC was designed and constructed with support from NSF/AST-0705157,
NSF/AST-1009939, the Gordon and Betty Moore Foundation, and the Caheck
Submillinteter Observatory. which lms been supported by NSF/AST-0540882
and NSF/AST-0838261. JS and MIH were partially supported by NASA
Postdoctoral Program fellowships. JAS and NGC were partially supported
by NASA Graduate Student Research Program fellowships. We acknowledge
Kathy Dcniston and Barbara Wertz for administrative support and the
staff and day crew of the CSO for assistance during design.
installation, and commissioning.
NR 22
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U2 3
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-9153-4
J9 PROC SPIE
PY 2012
VL 8452
AR 845205
DI 10.1117/12.926055
PG 21
WC Astronomy & Astrophysics; Instruments & Instrumentation; Optics
SC Astronomy & Astrophysics; Instruments & Instrumentation; Optics
GA BDD98
UT WOS:000312884000004
ER
PT S
AU Kernasovskiy, S
Ade, PAR
Aikin, RW
Amiri, M
Benton, S
Bischoff, C
Bock, JJ
Bonetti, JA
Brevik, JA
Burger, B
Davis, G
Dowell, CD
Duband, L
Filippini, JP
Fliescher, S
Golwala, SR
Halpern, M
Hasselfield, M
Hiltion, G
Hristov, VV
Irwin, K
Kovac, JM
Kuo, CL
Leitch, E
Lueker, M
Netterfield, CB
Nguyen, HT
O'Brient, R
Ogburn, RW
Pryke, CL
Reintsema, C
Ruhl, JE
Runyan, MC
Schwarz, R
Sheehy, CD
Staniszewski, Z
Sudiwala, R
Teply, G
Tolan, JE
Turner, AD
Vieregg, A
Wiebe, DV
Wilson, P
Wong, CL
AF Kernasovskiy, S.
Ade, P. A. R.
Aikin, R. W.
Amiri, M.
Benton, S.
Bischoff, C.
Bock, J. J.
Bonetti, J. A.
Brevik, J. A.
Burger, B.
Davis, G.
Dowell, C. D.
Duband, L.
Filippini, J. P.
Fliescher, S.
Golwala, S. R.
Halpern, M.
Hasselfield, M.
Hiltion, G.
Hristov, V. V.
Irwin, K.
Kovac, J. M.
Kuo, C. L.
Leitch, E.
Lueker, M.
Netterfield, C. B.
Nguyen, H. T.
O'Brient, R.
Ogburn, R. W.
Pryke, C. L.
Reintsema, C.
Ruhl, J. E.
Runyan, M. C.
Schwarz, R.
Sheehy, C. D.
Staniszewski, Z.
Sudiwala, R.
Teply, G.
Tolan, J. E.
Turner, A. D.
Vieregg, A.
Wiebe, D. V.
Wilson, P.
Wong, C. L.
BE Holland, WS
Zmuidzinas, J
TI Optimization and sensitivity of the Keck Array
SO MILLIMETER, SUBMILLIMETER, AND FAR-INFRARED DETECTORS AND
INSTRUMENTATION FOR ASTRONOMY VI
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Millimeter, Submillimeter, and Far-Infrared Detectors and
Instrumentation for Astronomy VI
CY JUL 03-06, 2012
CL Amsterdam, NETHERLANDS
SP SPIE
DE Cosmic Microwave Background; polarization; inflation; Keck Array;
BICEP2; TES; detector noise
ID POWER SPECTRUM; MICROWAVE; POLARIZATION; EQUILIBRIUM; BOLOMETERS; PROBE
AB The Keck Array (SPUD) began observing the cosmic microwave background's polarization in the winter of 2011 at the South Pole. The Keck Array follows the success of the predecessor experiments BICEP and BICEP2,1 using five on-axis refracting telescopes. These have a combined imaging array of 2500 antenna-coupled TES bolometers read with a SQUID-based time domain multiplexing system. We will discuss the detector noise and the optimization of the readout. The achieved sensitivity of the Keck Array is 11.5 mu K-CMB root s in the 2012 configuration.
C1 [Kernasovskiy, S.; Kuo, C. L.; Ogburn, R. W.; Tolan, J. E.] Stanford Univ, 382 Via Pueblo Mall, Stanford, CA 94305 USA.
[Kernasovskiy, S.; Kuo, C. L.; Ogburn, R. W.; Tolan, J. E.] Kavli Inst Particle Astrophys & Cosmol KIPAC, Menlo Pk, CA 94025 USA.
[Ade, P. A. R.; Sudiwala, R.] Univ Wales Coll Cardiff, Dept Phys & Astron, Cardiff CF24 3YB, Wales.
[Aikin, R. W.; Bock, J. J.; Brevik, J. A.; Dowell, C. D.; Filippini, J. P.; Lueker, M.; Nguyen, H. T.; O'Brient, R.; Runyan, M. C.; Staniszewski, Z.; Teply, G.] CALTECH, Pasadena, CA 91125 USA.
[Amiri, M.; Burger, B.; Davis, G.; Halpern, M.; Wiebe, D. V.] Univ British Columbia, Dept Phys & Astron, Vancouver, BC V6T1Z1, Canada.
[Benton, S.; Netterfield, C. B.] Univ Toronto, Dept Phys, Toronto, ON M5S IA7, Canada.
[Bischoff, C.; Kovac, J. M.; Vieregg, A.; Wong, C. L.] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA.
[Bock, J. J.; Bonetti, J. A.; Dowell, C. D.; Lueker, M.; Nguyen, H. T.; O'Brient, R.; Staniszewski, Z.; Turner, A. D.; Wilson, P.] Jet Prop Lab, Pasadena, CA 91109 USA.
[Duband, L.] CEA Grenoble, DRFMC, Serv Basses Temp, F-38054 Grenoble 9, France.
[Fliescher, S.; Pryke, C. L.; Schwarz, R.; Sheehy, C. D.] Univ Minnesota, Sch Phys & Astron, Minneapolis, MN 55455 USA.
[Hiltion, G.; Irwin, K.; Reintsema, C.] NIST, Quantum Devices Grp, Boulder, CO 80305 USA.
[Leitch, E.] Univ Chicago, KICP, Chicago, IL 60637 USA.
[Ruhl, J. E.] Case Western Reserve Univ, Dept Phys, Cleveland, OH 44106 USA.
RP Kernasovskiy, S (reprint author), Stanford Univ, 382 Via Pueblo Mall, Stanford, CA 94305 USA.
EM sstokes@stanford.edu
FU National Science Foundation [ANT-1044978/ ANT-1110087]; Keck Foundation
FX The Keck Array projects have been made possible through support from the
National Science Foundation (grant Nos. ANT-1044978/ ANT- 1110087) and
the Keck Foundation. Detector development has been made possible with
the Gordon and Betty Moore foundation. We also acknowledge the Canada
Foundation for Innovation and BC Knowledge Development Fund for support.
We are grateful to Robert Schwarz for spending the winter in the South
Pole for us in both 2011 and 2012, as well as to the South Pole
logistics team. We also are grateful for the insight and collaboration
from the entire Bicep2, SPIDER and Keck Array teams.
NR 26
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U1 1
U2 3
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-9153-4
J9 PROC SPIE
PY 2012
VL 8452
AR 84521B
DI 10.1117/12.926934
PG 12
WC Astronomy & Astrophysics; Instruments & Instrumentation; Optics
SC Astronomy & Astrophysics; Instruments & Instrumentation; Optics
GA BDD98
UT WOS:000312884000038
ER
PT S
AU Wang, YD
Lewis, R
Lin, MH
Radebaugh, R
Lee, YC
AF Wang, Y. D.
Lewis, R.
Lin, M. -H.
Radebaugh, R.
Lee, Y. C.
GP IEEE
TI WAFER-LEVEL PROCESSING FOR POLYMER-BASED PLANAR MICRO CRYOGENIC COOLERS
SO 2012 IEEE 25TH INTERNATIONAL CONFERENCE ON MICRO ELECTRO MECHANICAL
SYSTEMS (MEMS)
SE Proceedings IEEE Micro Electro Mechanical Systems
LA English
DT Proceedings Paper
CT 25th IEEE International Conference on Micro Electro Mechanical Systems
(MEMS)
CY JAN 29-FEB 02, 2012
CL Paris, FRANCE
SP IEEE, Robot & Automat Soc (RA), Reg Nord-Pas Calais
AB In this paper, we present the fabrication and testing of a novel polymer-based Joule-Thomson (J-T) micro cryogenic cooler (MCC). Techniques including monolithic fabrication of high pressure polymer channels and 3-D interconnect for fluid channels including a flow resistance are developed to fabricate a planar MCC. The MCC contains a polymer heat exchanger and a silicon/glass J-T valve. A low temperature of 233 K was achieved under an operation pressure ratio of 0.7:0.15 MPa by using a custom designed mixed refrigerant. It is the first demonstration ever reported for J-T MCCs fabricated and assembled based on wafer-level processes.
C1 [Wang, Y. D.; Lewis, R.; Lin, M. -H.; Lee, Y. C.] Univ Colorado, Boulder, CO 80309 USA.
[Radebaugh, R.] Natl Inst Stand & Technol NIST, Boulder, CO USA.
RP Wang, YD (reprint author), Univ Colorado, Boulder, CO 80309 USA.
EM yunda.wang@colorado.edu
FU DARPA Micro Cryogenic Coolers program [NBCHC060052, W31P4Q-10-1-0004]
FX This research is supported by DARPA Micro Cryogenic Coolers program
(NBCHC060052 and W31P4Q-10-1-0004). The authors would like to express
their appreciation to Dr. Huber Marcia at NIST for her design of the gas
mixture.
NR 7
TC 0
Z9 0
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1084-6999
BN 978-1-4673-0325-5
J9 PROC IEEE MICR ELECT
PY 2012
PG 4
WC Engineering, Electrical & Electronic; Nanoscience & Nanotechnology
SC Engineering; Science & Technology - Other Topics
GA BDE04
UT WOS:000312912800086
ER
PT J
AU Okoro, C
Obeng, YS
AF Okoro, Chukwudi
Obeng, Yaw S.
GP IEEE
TI Effect of Thermal Cycling on the Signal Integrity and Morphology of TSV
Isolation Liner-SiO2
SO 2012 IEEE INTERNATIONAL INTERCONNECT TECHNOLOGY CONFERENCE (IITC)
LA English
DT Proceedings Paper
CT IEEE International Interconnect Technology Conference (IITC)
CY JUN 04-06, 2012
CL San Jose, CA
SP ASM Int, J X Nippon Mining & Metals USA Inc, SAFC Hitech, Air Liquide, BASF, Aetrium, Air Prod, Appl Mat, Atotech, Enthone, IBM Corp, IMEC, Lam Res, Metryx, Qualitau, Tokyo Electron (TEL), Tosoh SMD, IEEE
AB This study is focused on understanding the effect of thermal cycling on the signal integrity characteristics of TSV isolation liner (SiO2). The use of radio frequency (RF) signals is found to be a good metrology tool for the detection of discontinuities in the SiO2 isolation liner. Signal degradation is found to scale with the attained number of thermal cycles. Atomic force microscopy (AFM) analysis revealed that void formation and growth in the SiO2 isolation liner is the root cause for this observed trend. Therefore the life time of TSVs will be significantly affected by the SiO2 isolation liner, thus, their understanding, engineering and optimization will be essential for prolonged high performance TSVs.
C1 [Okoro, Chukwudi; Obeng, Yaw S.] NIST, Semicond & Dimens Metrol Div, Phys Measurement Lab, Gaithersburg, MD 20899 USA.
RP Okoro, C (reprint author), NIST, Semicond & Dimens Metrol Div, Phys Measurement Lab, Gaithersburg, MD 20899 USA.
EM chukwudi.okoro@nist.gov
NR 5
TC 0
Z9 0
U1 1
U2 2
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-4673-1137-3
PY 2012
PG 3
WC Computer Science, Theory & Methods; Engineering, Electrical & Electronic
SC Computer Science; Engineering
GA BDC15
UT WOS:000312547500020
ER
PT S
AU Nelson, T
Waltrip, B
AF Nelson, T.
Waltrip, B.
GP IEEE
TI NIST Reactive Power Standard
SO 2012 IEEE POWER AND ENERGY SOCIETY GENERAL MEETING
SE IEEE Power and Energy Society General Meeting PESGM
LA English
DT Proceedings Paper
CT General Meeting of the IEEE-Power-and-Energy-Society
CY JUL 22-26, 2012
CL San Diego, CA
SP IEEE Power & Energy Soc
DE Josephson arrays; Voltage measurement; Current measurement; Power
measurement; Signal synthesis; Quantization; Digital-analog conversion;
Analog-digital conversion; Permuting capacitance
ID CAPACITANCE BRIDGE; CALIBRATION
AB This paper describes the implementation of a quantum-based system for the generation of 120 V rms, 5 A rms, sinusoidal, active and reactive power over the 50 Hz to 400 Hz frequency range. The system relates the amplitudes and phases of the voltage and current waveforms of the generated power to a programmable Josephson voltage standard (PJVS) using a differential sampling technique. The system also employs a voltage amplifier that performs self-calibration and corrections of gain and phase errors. Details of the system design, measurement techniques, and significant sources of error are presented.
C1 [Nelson, T.; Waltrip, B.] NIST, Gaithersburg, MD 20899 USA.
RP Nelson, T (reprint author), NIST, Gaithersburg, MD 20899 USA.
NR 8
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1944-9925
BN 978-1-4673-2729-9
J9 IEEE POW ENER SOC GE
PY 2012
PG 5
WC Engineering, Electrical & Electronic
SC Engineering
GA BDB70
UT WOS:000312493704006
ER
PT S
AU Tang, Y
Stenbakken, GN
AF Tang, Y.
Stenbakken, G. N.
GP IEEE
TI Traceability of Calibration for Phasor Measurement Unit
SO 2012 IEEE POWER AND ENERGY SOCIETY GENERAL MEETING
SE IEEE Power and Energy Society General Meeting PESGM
LA English
DT Proceedings Paper
CT General Meeting of the IEEE-Power-and-Energy-Society
CY JUL 22-26, 2012
CL San Diego, CA
SP IEEE Power & Energy Soc
DE Calibration; Global Positioning System (GPS); Phase measurement; PMU;
Synchronization; Traceability; Uncertainty
ID SYSTEM
AB IEEE Standard C37.118.1 defines requirements for the measurement and determination of a Phasor Measurement Unit (PMU). The PMUs must be tested to ensure that all PMUs on the power grid behave the same. In order to meet the requirement of PMU within specified uncertainty, the PMU calibration systems or calibrators must be traceable to known reference standards with an unbroken chain of calibration. If all the testing laboratories are traceable to reference standards, the test and equipment are similar, and staffs are qualified, then PMUs tested by all of them will have the same behavior. Inaccurate PMU calibration can lead to selecting PMUs that do not behave the same, which can have serious financial consequences to electric power utilities as well as reliability and safety consequences. The measurement of voltage and current phasors relative to absolute phase angles, i.e., relative to a nominal phasor synchronized to Coordinated Universal Time, UTC, is not a common measurement in most testing laboratories. This paper describes the basic concepts of phasor traceability and how they are applied to the PMU calibration system used at the National Institute of Standards and Technology (NIST). The reliable and accurate PMU calibration system is able to support PMU manufacturers and other testing laboratories to improve their products or calibrations to meet the IEEE Standard C37.118.1. Examples of improving PMU performance after feedback of NIST calibrations to the manufacturers will be described.
C1 [Tang, Y.] NIST, Quantum Measurement Div, Phys Measurement Lab, US Dept Commerce, Gaithersburg, MD 20899 USA.
[Tang, Y.] Natl Inst Stand & Technol, Gaithersburg, MD 20899 USA.
[Stenbakken, G. N.] GNS Consulting, Potomac, MD 20854 USA.
RP Tang, Y (reprint author), NIST, Quantum Measurement Div, Phys Measurement Lab, US Dept Commerce, Gaithersburg, MD 20899 USA.
EM yi-hua.tang@nist.gov; gerard.stenbakken@nist.gov
NR 26
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1944-9925
BN 978-1-4673-2729-9
J9 IEEE POW ENER SOC GE
PY 2012
PG 5
WC Engineering, Electrical & Electronic
SC Engineering
GA BDB70
UT WOS:000312493700037
ER
PT J
AU Goldberg, R
Mercaldo-Allen, R
Rose, JM
Clark, P
Kuropat, C
Meseck, S
Pereira, J
AF Goldberg, Ronald
Mercaldo-Allen, Renee
Rose, Julie M.
Clark, Paul
Kuropat, Catherine
Meseck, Shannon
Pereira, Jose
TI Effects of hydraulic shellfish dredging on the ecology of a cultivated
clam bed
SO AQUACULTURE ENVIRONMENT INTERACTIONS
LA English
DT Article
DE Benthic macrofauna; Species composition; Before-after-control-impact
design; Mercenaria mercenaria; Molluscan aquaculture
ID ADRIATIC SEA; IMPACTS; COMMUNITIES; SCALES; FLOOR; GEAR
AB A before-after-control-impact (BACI)-style experimental design was used to assess the short-term effects of hydraulic clam dredging on the benthic community of a leased shellfish bed along the Connecticut coast of Long Island Sound, where hard clams Mercenaria mercenaria are cultivated. Three replicate samples were collected from 6 plots (0.67 ha each) on a weekly basis from May through October 2009. Dredging was conducted in early July in 3 of the 6 plots, while 3 control plots were not dredged. Pairwise comparisons and multivariate analyses of main effects and interactions indicated that ecological indices did not differ significantly between dredged and not dredged plots, although sample date and plot both had significant effects. Assemblages of individual species were associated with specific sediment types found within the clam bed. Natural seasonal settlement patterns and sediment grain size had a greater influence on the benthic community than discrete hydraulic clam dredging.
C1 [Goldberg, Ronald; Mercaldo-Allen, Renee; Rose, Julie M.; Clark, Paul; Kuropat, Catherine; Meseck, Shannon; Pereira, Jose] NOAA Fisheries, NE Fisheries Sci Ctr, Milford Lab, Milford, CT 06460 USA.
RP Goldberg, R (reprint author), NOAA Fisheries, NE Fisheries Sci Ctr, Milford Lab, 212 Rogers Ave, Milford, CT 06460 USA.
EM ronald.goldberg@noaa.gov
FU East Coast Shellfish Research Institute
FX We thank Captains R. Alix and W. Schreiner for vessel operations, S.
Auscavitch, S. DeCarli, M. Dixon, J. Esposito, J. Goggins, K. Harper, T.
L. Nguyen, D. Redman, J. Reidy, G. Sennefelder, and A. Wu for technical
support, and L. Williams of the Jesse D. Shellfish Company for dredging
our study site and allowing us to sample his leased clam beds. The State
of Connecticut, Dept of Agriculture, Bureau of Aquaculture's D. Carey
and T. Barrell helped to coordinate experimental dredging and mark
shellfish beds. This study was supported in part by the East Coast
Shellfish Research Institute.
NR 45
TC 6
Z9 6
U1 3
U2 10
PU INTER-RESEARCH
PI OLDENDORF LUHE
PA NORDBUNTE 23, D-21385 OLDENDORF LUHE, GERMANY
SN 1869-215X
J9 AQUACULT ENV INTERAC
JI Aquac. Environ. Interact.
PY 2012
VL 3
IS 1
BP 11
EP 21
DI 10.3354/aei00045
PG 11
WC Fisheries; Marine & Freshwater Biology
SC Fisheries; Marine & Freshwater Biology
GA 060NA
UT WOS:000312783800002
ER
PT J
AU Meseck, SL
Li, YQ
Dixon, MS
Rivara, K
Wikfors, GH
Luther, G
AF Meseck, Shannon L.
Li, Yaqin
Dixon, Mark S.
Rivara, Karen
Wikfors, Gary H.
Luther, George, III
TI Effects of a commercial, suspended eastern oyster nursery upon nutrient
and sediment chemistry in a temperate, coastal embayment
SO AQUACULTURE ENVIRONMENT INTERACTIONS
LA English
DT Article
DE Aquaculture; Sediments; Nutrients; Phytoplankton; Oysters
ID SAN-FRANCISCO BAY; FEEDING BIVALVE MOLLUSKS; MARINE-SEDIMENTS; MUSSEL
AQUACULTURE; FRESH-WATER; SHELLFISH AQUACULTURE; BENTHIC COMMUNITIES;
ORGANIC ENRICHMENT; NITROGEN DYNAMICS; SULFATE REDUCTION
AB We explored chemical effects of a commercial Floating-Upwelling-System (FLUPSY) stocked with juvenile oysters Crassostrea virginica in a small embayment. Water from the FLUPSY outflow was analyzed for nutrients (total ammonia, nitrate+nitrite, phosphate, and silicate), total suspended material (TSM), chlorophyll (chl) a, and particulate organic carbon and nitrogen (C:N). The output from the FLUPSY was compared to estuarine transects in the Bay to determine if any outputs from the FLUPSY could be detected within the embayment. Sediment samples taken near the FLUPSY and throughout the embayment were analyzed for fluxes of total ammonia, hydrogen sulfide, and oxygen. Dissolved nutrient concentrations in the FLUPSY output were no higher than in the rest of the embayment. There were, however, elevated concentrations of TSM and chl a near the FLUPSY compared to other sites in the embayment. Furthermore, suspended organic matter near the FLUPSY had a C: N ratio near the Redfield ratio, while the rest of the embayment had an elevated C: N ratio indicative of phytoplankton nitrogen limitation. These findings suggest that nutrient recycling by microbes may have been occurring in the vicinity of the FLUPSY. Sediment data showed no difference in fluxes of oxygen, hydrogen sulfide, or total ammonia between the FLUPSY output and elsewhere in the embayment. These findings suggest that the FLUPSY had very minimal effects on the chemical ecology of the embayment.
C1 [Meseck, Shannon L.; Li, Yaqin; Dixon, Mark S.; Wikfors, Gary H.] NOAA NMFS, Milford, CT 06418 USA.
[Rivara, Karen] Aeros Cultured Oyster Co, Southold, NY 11971 USA.
[Luther, George, III] Univ Delaware, Coll Marine Studies, Lewes, DE 19958 USA.
RP Meseck, SL (reprint author), NOAA NMFS, 212 Rogers Ave, Milford, CT 06418 USA.
EM shannon.meseck@noaa.gov
RI Luther, III, George/A-6384-2008
OI Luther, III, George/0000-0002-0780-885X
NR 67
TC 4
Z9 4
U1 2
U2 19
PU INTER-RESEARCH
PI OLDENDORF LUHE
PA NORDBUNTE 23, D-21385 OLDENDORF LUHE, GERMANY
SN 1869-215X
EI 1869-7534
J9 AQUACULT ENV INTERAC
JI Aquac. Environ. Interact.
PY 2012
VL 3
IS 1
BP 65
EP 79
DI 10.3354/aei00050
PG 15
WC Fisheries; Marine & Freshwater Biology
SC Fisheries; Marine & Freshwater Biology
GA 060NA
UT WOS:000312783800007
ER
PT J
AU Min, Q
Joseph, E
Lin, Y
Min, L
Yin, B
Daum, PH
Kleinman, LI
Wang, J
Lee, YN
AF Min, Q.
Joseph, E.
Lin, Y.
Min, L.
Yin, B.
Daum, P. H.
Kleinman, L. I.
Wang, J.
Lee, Y. -N.
TI Comparison of MODIS cloud microphysical properties with in-situ
measurements over the Southeast Pacific
SO ATMOSPHERIC CHEMISTRY AND PHYSICS
LA English
DT Article
ID VOCALS-REX; BOUNDARY-LAYER; MARINE STRATOCUMULUS; VARIABILITY; RADIUS
AB Utilizing the unique characteristics of the cloud over the Southeast Pacific (SEP) off the coast of Chile during the VOCALS field campaign, we compared satellite remote sensing of cloud microphysical properties against in-situ data from multi-aircraft observations, and studied the extent to which these retrieved properties are sufficiently constrained and consistent to reliably quantify the influence of aerosol loading on cloud droplet sizes. After constraining the spatial-temporal coincidence between satellite retrievals and in-situ measurements, we selected 17 non-drizzle comparison pairs. For these cases the mean aircraft profiling times were within one hour of Terra overpasses at both projected and un-projected (actual) aircraft positions for two different averaging domains of 5 km and 25 km. Retrieved quantities that were averaged over a larger domain of 25 km compared better statistically with in-situ observations than averages over a smaller domain of 5 km. Comparison at projected aircraft positions was slightly better than un-projected aircraft positions for some parameters. Overall, both MODIS-retrieved effective radius and LWP were larger but highly correlated with the in-situ measured effective radius and LWP, e. g., for averaging domains of 5 km, the biases are up to 1.75 mu m and 0.02 mm whilst the correlation coefficients are about 0.87 and 0.85, respectively. The observed effective radius difference between the two decreased with increasing cloud drop number concentration (CDNC), and increased with increasing cloud geometrical thickness. Compared to the absolute effective radius difference, the correlations between the relative effective radius difference and CDNC or cloud geometric thickness are weaker. For averaging domains of 5 km and 25 km, the correlation coefficients between MODIS-retrieved and in-situ measured CDNC are 0.91 and 0.93 with fitting slopes of 1.23 and 1.27, respectively. If the cloud adiabaticity is taken into account, better agreements are achieved for both averaging domains (the fitting slopes are 1.04 and 1.07, respectively). Our comparison and sensitivity analysis of simulated retrievals demonstrate that both cloud geometrical thickness and cloud adiabaticity are important factors in satellite retrievals of effective radius and cloud drop number concentration. The large variabilities in cloud geometrical thickness and adiabaticity, the dependencies of cloud microphysical properties on both quantities (as demonstrated in our sensitivity study of simulated retrievals), and the inability to accurately account for either of them in retrievals lead to some uncertainties and biases in satellite retrieved cloud effective radius, cloud liquid water path, and cloud drop number concentration. However, strong correlations between satellite retrievals and in-situ measurements suggest that satellite retrievals of cloud effective radius, cloud liquid water path, and cloud drop number concentration can be used to investigate aerosol indirect effects qualitatively.
C1 [Min, Q.; Lin, Y.; Min, L.; Yin, B.] SUNY Albany, Atmospher Sci Res Ctr, Albany, NY 12222 USA.
[Joseph, E.] Howard Univ, NOAA Ctr Atmospher Sci, Washington, DC 20059 USA.
[Daum, P. H.; Kleinman, L. I.; Wang, J.; Lee, Y. -N.] Brookhaven Natl Lab, Div Atmospher Sci, Upton, NY 11973 USA.
RP Min, Q (reprint author), SUNY Albany, Atmospher Sci Res Ctr, Albany, NY 12222 USA.
EM qmin@albany.edu
RI Wang, Jian/G-9344-2011
FU US Department of Energy Brookhaven National Laboratory; US DOE's
Atmospheric System Research program (Office of Science, OBER)
[DE-FG02-03ER63531]; NSF [AGS-1138495]; NOAA Educational Partnership
Program with Minority Serving Institutions (EPP/MSI) [NA17AE1625,
NA17AE1623]; [DE-AC02-98CH10886]
FX This work was supported by the US Department of Energy Brookhaven
National Laboratory and US DOE's Atmospheric System Research program
(Office of Science, OBER) under contract DE-FG02-03ER63531, by the NSF
under contract AGS-1138495, and by the NOAA Educational Partnership
Program with Minority Serving Institutions (EPP/MSI) under cooperative
agreements NA17AE1625 and NA17AE1623; contributions from PHD, LIK, JW,
and YNL were supported by DE-AC02-98CH10886.
NR 25
TC 17
Z9 17
U1 0
U2 15
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1680-7316
J9 ATMOS CHEM PHYS
JI Atmos. Chem. Phys.
PY 2012
VL 12
IS 23
BP 11261
EP 11273
DI 10.5194/acp-12-11261-2012
PG 13
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 058WK
UT WOS:000312665300002
ER
PT J
AU Chen, G
Xue, H
Feingold, G
Zhou, X
AF Chen, G.
Xue, H.
Feingold, G.
Zhou, X.
TI Vertical transport of pollutants by shallow cumuli from large eddy
simulations
SO ATMOSPHERIC CHEMISTRY AND PHYSICS
LA English
DT Article
ID CONVECTIVE CLOUDS; NUMERICAL SIMULATIONS; LIFE-CYCLE; OZONE;
REDISTRIBUTION; DYNAMICS; AEROSOLS
AB This study investigates the vertical transport of a passive tracer in a shallow cumulus boundary layer using large eddy simulations. The tracer source is at the surface in one case, and in the inversion layer in the other case. Results show that shallow cumulus clouds can significantly enhance vertical transport of the tracer in both cases. In the case with surface-borne pollutants, cloudy regions are responsible for the upward transport, due to the intense updrafts in cumulus clouds. In the case where pollutants are aloft, cloud-free regions are responsible for the downward transport, but the downward transport mainly occurs in thin regions around cloud edges. This is consistent with previous aircraft measurements of downdrafts around cumulus clouds and indicates that the downward transport is also cloud-induced. Cumulus convection is therefore able to both vent pollutants upward from the surface and fumigate pollutants in the inversion layer downward into the lower boundary layer.
C1 [Chen, G.; Xue, H.; Zhou, X.] Peking Univ, Sch Phys, Dept Atmospher & Ocean Sci, Beijing 100871, Peoples R China.
[Feingold, G.] NOAA, Earth Syst Res Lab, Boulder, CO 80305 USA.
[Zhou, X.] Chinese Acad Meteorol Sci, Beijing 100081, Peoples R China.
RP Xue, H (reprint author), Peking Univ, Sch Phys, Dept Atmospher & Ocean Sci, Beijing 100871, Peoples R China.
EM hxue@pku.edu.cn
RI Feingold, Graham/B-6152-2009; Manager, CSD Publications/B-2789-2015
FU Chinese NSF [41075097]; Chinese National Public Benefit Research
Foundation of Meteorology [GYHY201006011]
FX We thank Jost Heintzenberg for helpful discussions and suggestions on
this manuscript. We are also grateful to the anonymous reviewer and
Thijs Heus for their comments and suggestions, which improved this
manuscript. This work is supported by Chinese NSF grant 41075097 and
Chinese National Public Benefit Research Foundation of Meteorology Grant
GYHY201006011.
NR 29
TC 2
Z9 2
U1 1
U2 9
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1680-7316
J9 ATMOS CHEM PHYS
JI Atmos. Chem. Phys.
PY 2012
VL 12
IS 23
BP 11319
EP 11327
DI 10.5194/acp-12-11319-2012
PG 9
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 058WK
UT WOS:000312665300006
ER
PT J
AU Witrant, E
Martinerie, P
Hogan, C
Laube, JC
Kawamura, K
Capron, E
Montzka, SA
Dlugokencky, EJ
Etheridge, D
Blunier, T
Sturges, WT
AF Witrant, E.
Martinerie, P.
Hogan, C.
Laube, J. C.
Kawamura, K.
Capron, E.
Montzka, S. A.
Dlugokencky, E. J.
Etheridge, D.
Blunier, T.
Sturges, W. T.
TI A new multi-gas constrained model of trace gas non-homogeneous transport
in firn: evaluation and behaviour at eleven polar sites
SO ATMOSPHERIC CHEMISTRY AND PHYSICS
LA English
DT Article
ID ACCUMULATION SITE; AIR; ICE; ANTARCTICA; SCALE; ATMOSPHERE; GREENLAND;
IMPACT; SUMMIT; AGE
AB Insoluble trace gases are trapped in polar ice at the firn-ice transition, at approximately 50 to 100 m below the surface, depending primarily on the site temperature and snow accumulation. Models of trace gas transport in polar firn are used to relate firn air and ice core records of trace gases to their atmospheric history. We propose a new model based on the following contributions. First, the firn air transport model is revised in a poromechanics framework with emphasis on the non-homogeneous properties and the treatment of gravitational settling. We then derive a nonlinear least square multi-gas optimisation scheme to calculate the effective firn diffusivity (automatic diffusivity tuning). The improvements gained by the multi-gas approach are investigated (up to ten gases for a single site are included in the optimisation process). We apply the model to four Arctic (Devon Island, NEEM, North GRIP, Summit) and seven Antarctic (DE08, Berkner Island, Siple Dome, Dronning Maud Land, South Pole, Dome C, Vostok) sites and calculate their respective depth-dependent diffusivity profiles. Among these different sites, a relationship is inferred between the snow accumulation rate and an increasing thickness of the lock-in zone defined from the isotopic composition of molecular nitrogen in firn air (denoted delta N-15). It is associated with a reduced diffusivity value and an increased ratio of advective to diffusive flux in deep firn, which is particularly important at high accumulation rate sites. This has implications for the understanding of delta N-15 of N-2 records in ice cores, in relation with past variations of the snow accumulation rate. As the snow accumulation rate is clearly a primary control on the thickness of the lock-in zone, our new approach that allows for the estimation of the lock-in zone width as a function of accumulation may lead to a better constraint on the age difference between the ice and entrapped gases.
C1 [Witrant, E.] UJF Grenoble 1, CNRS, Grenoble Image Parole Signal Automat GIPSA Lab, UMR5216, F-38402 St Martin Dheres, France.
[Martinerie, P.] UJF Grenoble 1, CNRS, LGGE, UMR5183, F-38041 Grenoble, France.
[Hogan, C.; Laube, J. C.; Sturges, W. T.] Univ E Anglia, Sch Environm Sci, Norwich NR4 7TJ, Norfolk, England.
[Kawamura, K.] Natl Inst Polar Res, Tachikawa, Tokyo 1908518, Japan.
[Kawamura, K.] Japan Agcy Marine Earth Sci & Technol, Inst Biogeosci, Yokosuka, Kanagawa 2370061, Japan.
[Capron, E.] IPSL CEA CNRS UVSQ, Lab Sci Climat & Environm, F-91191 Gif Sur Yvette, France.
[Capron, E.] British Antarctic Survey, NERC, Cambridge CB3 0ET, England.
[Montzka, S. A.; Dlugokencky, E. J.] NOAA, Earth Syst Res Lab, Boulder, CO USA.
[Etheridge, D.] Commonwealth Sci & Ind Res Org, Marine & Atmospher Res, Aspendale, Vic 3195, Australia.
[Blunier, T.] Univ Copenhagen, Niels Bohr Inst, Ctr Ice & Climate, DK-2100 Copenhagen O, Denmark.
RP Witrant, E (reprint author), UJF Grenoble 1, CNRS, Grenoble Image Parole Signal Automat GIPSA Lab, UMR5216, BP 46, F-38402 St Martin Dheres, France.
EM emmanuel.witrant@ujf-grenoble.fr
RI Blunier, Thomas/M-4609-2014; Etheridge, David/B-7334-2013;
OI Blunier, Thomas/0000-0002-6065-7747; Kawamura,
Kenji/0000-0003-1163-700X; Montzka, Stephen/0000-0002-9396-0400
FU Belgium (FNRSCFB); Belgium (FWO); Canada (GSC); China (CAS); Denmark
(FIST); France (IPEV); France (NIPR); Korea (KOPRI); Netherlands
(NWO/ALW); Sweden (VR); Switzerland (SNF); United Kingdom (NERC); USA
(US NSF, Office of Polar Programmes); CNRS through
INSIS/PEPS-automatique and INSU/LEFE programmes; JSPS KAKENHI [21671001,
22221002]
FX We are grateful to Christo Buizert, Amaelle Landais, Laurent Oxarango
and Jeffrey Severinghaus for their useful comments on the paper and to
Federico Bribiesca-Argomedo for his help in running numerical
simulations. This work benefited greatly from numerous data available in
public databases, in particular: AGAGE
(http://cdiac.ornl.gov/ndps/alegage.html), NOAA ESRL
(http://www.esrl.noaa.gov) and BADC (http://badc.nerc.ac.uk). We thank
the people involved in the acquiring, analysis and accessibility of
these data. NEEM is directed and organised by the Center for Ice and
Climate at the Niels Bohr Institute and US NSF, Office of Polar
Programmes. It is supported by funding agencies and institutions in
Belgium (FNRSCFB and FWO), Canada (GSC), China (CAS), Denmark (FIST),
France (IPEV, CNRS/INSU, CEA and ANR), Germany (AWI), Iceland (RannIs),
Japan (NIPR), Korea (KOPRI), The Netherlands (NWO/ALW), Sweden (VR),
Switzerland (SNF), United Kingdom (NERC) and the USA (US NSF, Office of
Polar Programmes). The French contribution to this study was further
supported by CNRS through INSIS/PEPS-automatique and INSU/LEFE
programmes and the Japan contribution by the support from JSPS KAKENHI
(grants 21671001 and 22221002). The authors also greatly acknowledge the
contribution of the editor and anonymous referees, who significantly
participated in the paper improvement with their thoughtful and
constructive remarks.
NR 37
TC 16
Z9 16
U1 3
U2 21
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1680-7316
J9 ATMOS CHEM PHYS
JI Atmos. Chem. Phys.
PY 2012
VL 12
IS 23
BP 11465
EP 11483
DI 10.5194/acp-12-11465-2012
PG 19
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 058WK
UT WOS:000312665300015
ER
PT J
AU Parrish, DD
Law, KS
Staehelin, J
Derwent, R
Cooper, OR
Tanimoto, H
Volz-Thomas, A
Gilge, S
Scheel, HE
Steinbacher, M
Chan, E
AF Parrish, D. D.
Law, K. S.
Staehelin, J.
Derwent, R.
Cooper, O. R.
Tanimoto, H.
Volz-Thomas, A.
Gilge, S.
Scheel, H. -E.
Steinbacher, M.
Chan, E.
TI Long-term changes in lower tropospheric baseline ozone concentrations at
northern mid-latitudes
SO ATMOSPHERIC CHEMISTRY AND PHYSICS
LA English
DT Article
ID SURFACE OZONE; UNITED-STATES; VERTICAL-DISTRIBUTION; BACKGROUND OZONE;
ATLANTIC REGION; CARBON-MONOXIDE; CENTRAL-EUROPE; TRENDS; AMERICA;
PERIOD
AB Changes in baseline (here understood as representative of continental to hemispheric scales) tropospheric O-3 concentrations that have occurred at northern mid-latitudes over the past six decades are quantified from available measurement records with the goal of providing benchmarks to which retrospective model calculations of the global O-3 distribution can be compared. Eleven data sets (ten ground-based and one airborne) including six European (beginning in the 1950's and before), three North American (beginning in 1984) and two Asian (beginning in 1991) are analyzed. When the full time periods of the data records are considered a consistent picture emerges; O-3 has increased at all sites in all seasons at approximately 1% yr(-1) relative to the site's 2000 yr mixing ratio in each season. For perspective, this rate of increase sustained from 1950 to 2000 corresponds to an approximate doubling. There is little if any evidence for statistically significant differences in average rates of increase among the sites, regardless of varying length of data records. At most sites (most definitively at the European sites) the rate of increase has slowed over the last decade (possibly longer), to the extent that at present O-3 is decreasing at some sites in some seasons, particularly in summer. The average rate of increase before 2000 shows significant seasonal differences (1.08 +/- 0.09, 0.89 +/- 0.10, 0.85 +/- 0.11 and 1.21 +/- 0.12% yr(-1) in spring, summer, autumn and winter, respectively, over North America and Europe).
C1 [Parrish, D. D.; Cooper, O. R.] NOAA, ESRL, Div Chem Sci, Boulder, CO USA.
[Law, K. S.] Univ Versailles St Quentin, UPMC Univ Paris 06, CNRS INSU, LATMOS IPSL,UMR8190, Paris, France.
[Staehelin, J.] ETHZ, Inst Atmospher & Climate Sci, CH-8092 Zurich, Switzerland.
[Derwent, R.] Rdscientific, Newbury RG14 6LH, Berks, England.
[Cooper, O. R.] Univ Colorado, CIRES, Boulder, CO 80309 USA.
[Tanimoto, H.] Natl Inst Environm Studies, Tsukuba, Ibaraki 3058506, Japan.
[Volz-Thomas, A.] Forschungszentrum Julich, IEK 8, D-52425 Julich, Germany.
[Gilge, S.] German Meteorol Serv DWD, Hohenpeissenberg Meteorol Observ, Hohenpeissenberg, Germany.
[Scheel, H. -E.] IMK IFU, Karlsruhe Inst Technol, D-82467 Garmisch Partenkirchen, Germany.
[Steinbacher, M.] Swiss Fed Labs Mat Sci & Technol EMPA, Dubendorf, Switzerland.
[Chan, E.] Environm Canada, Sci & Technol Branch, Toronto, ON, Canada.
RP Parrish, DD (reprint author), NOAA, ESRL, Div Chem Sci, 325 Broadway, Boulder, CO USA.
EM david.d.parrish@noaa.gov
RI Parrish, David/E-8957-2010; Tanimoto, Hiroshi/E-6779-2010; Cooper,
Owen/H-4875-2013; Garmisch-Pa, Ifu/H-9902-2014; Volz-Thomas,
Andreas/J-7223-2012; Steinbacher, Martin/B-7424-2009; Manager, CSD
Publications/B-2789-2015;
OI Parrish, David/0000-0001-6312-2724; Tanimoto,
Hiroshi/0000-0002-5424-9923; Volz-Thomas, Andreas/0000-0003-3700-1667;
Steinbacher, Martin/0000-0002-7195-8115; Derwent,
Richard/0000-0003-4498-645X
FU NOAA's Health of the Atmosphere and Atmospheric Chemistry and Climate
Programs; European Union [FP7-ENV-2010/265148]; Global Environment
Research Fund of the Ministry of the Environment, Japan [S-7-1]
FX The authors are grateful to the Umweltamt of Graubunden and J. Thudium
for providing the Arosa data sets, to the German Umweltbundesamt for
providing recent data from Zingst, and to P. G. Simmonds and T. G Spain
for providing the Mace Head data, to A. J. Manning for sorting the Mace
Head data into baseline and non-baseline observations, to NOAA Earth
System Research Laboratory, Global Monitoring Division for providing
data from Trinidad Head and Bermuda, to US National Park Service 2002
for providing Lassen NP data, to Nova Scotia Environment, Air Quality
and Resource Management Branch for providing Sable Is. data, and to Acid
Deposition Monitoring Network in East Asia (EANET) for providing the Mt.
Happo and Japanese MBL data. The authors also gratefully acknowledge the
strong support of the MOZAIC program by the European Communities, EADS,
Airbus and the airlines (Lufthansa, Austrian, Air France) who have
carried the MOZAIC equipment free of charge since 1994. D. Parrish
acknowledges support from NOAA's Health of the Atmosphere and
Atmospheric Chemistry and Climate Programs. K. S. Law acknowledges
support from the European Union Framework 7 (FP7) IP project PEGASOS
(FP7-ENV-2010/265148). H. Tanimoto acknowledges support from the Global
Environment Research Fund of the Ministry of the Environment, Japan
(S-7-1).
NR 55
TC 81
Z9 83
U1 6
U2 90
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1680-7316
EI 1680-7324
J9 ATMOS CHEM PHYS
JI Atmos. Chem. Phys.
PY 2012
VL 12
IS 23
BP 11485
EP 11504
DI 10.5194/acp-12-11485-2012
PG 20
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 058WK
UT WOS:000312665300016
ER
PT J
AU Lonsdale, CR
Stevens, RG
Brock, CA
Makar, PA
Knipping, EM
Pierce, JR
AF Lonsdale, C. R.
Stevens, R. G.
Brock, C. A.
Makar, P. A.
Knipping, E. M.
Pierce, J. R.
TI The effect of coal-fired power-plant SO2 and NOx control technologies on
aerosol nucleation in the source plumes
SO ATMOSPHERIC CHEMISTRY AND PHYSICS
LA English
DT Article
ID AIR-POLLUTION; EMISSIONS; GROWTH; MODEL; SENSITIVITY; PARTICLES;
MORTALITY; TEXAS
AB Nucleation in coal-fired power-plant plumes can greatly contribute to particle number concentrations near source regions. The changing emissions rates of SO2 and NOx due to pollution-control technologies over recent decades may have had a significant effect on aerosol formation and growth in the plumes with ultimate implications for climate and human health. We use the System for Atmospheric Modeling (SAM) large-eddy simulation model with the TwO-Moment Aerosol Sectional (TOMAS) microphysics algorithm to model the nucleation in plumes of coal-fired plants. We test a range of cases with varying emissions to simulate the implementation of emissions-control technologies between 1997 and 2010. We start by simulating the W. A. Parish power plant (near Houston, TX) during this time period, when NOx emissions were reduced by similar to 90% and SO2 emissions decreased by similar to 30 %. Increases in plume OH (due to the reduced NOx) produced enhanced SO2 oxidation and an order-of-magnitude increase in particle nucleation in the plume despite the reduction in SO2 emissions. These results suggest that NOx emissions could strongly regulate particle nucleation and growth in power-plant plumes. Next, we test a range of cases with varying emissions to simulate the implementation of SO2 and NOx emissions-control technologies. Particle formation generally increases with SO2 emission, while NOx shows two different regimes: increasing particle formation with increasing NOx under low-NOx emissions and decreasing particle formation with increasing NOx under high-NOx emissions. Next, we compare model results with airborne measurements made in the W. A. Parish power-plant plume in 2000 and 2006, confirming the importance of NOx emissions on new particle formation and highlighting the substantial effect of background aerosol loadings on this process (the more polluted background of the 2006 case caused more than an order-of-magnitude reduction in particle formation in the plume compared to the cleaner test day in 2000). Finally, we calculate particle-formation statistics of 330 coal-fired power plants in the US in 1997 and 2010, and the model results show a median decrease of 19% in particle formation rates from 1997 to 2010 (whereas the W. A. Parish case study showed an increase). Thus, the US power plants, on average, show a different result than was found for the W. A. Parish plant specifically, and it shows that the strong NOx controls (90% reduction) implemented at the W. A. Parish plant (with relatively weak SO2 emissions reductions, 30 %) are not representative of most power plants in the US during the past 15 yr. These results suggest that there may be important climate implications of power-plant controls due to changes in plume chemistry and microphysics, but the magnitude and sign of the aerosol changes depend greatly on the relative reductions in NOx and SO2 emissions in each plant. More extensive plume measurements for a range of emissions of SO2 and NOx and in varying background aerosol conditions are needed, however, to better quantify these effects.
C1 [Lonsdale, C. R.; Stevens, R. G.; Pierce, J. R.] Dalhousie Univ, Dept Phys & Atmospher Sci, Halifax, NS, Canada.
[Brock, C. A.] NOAA, Earth Syst Res Lab, Boulder, CO USA.
[Makar, P. A.] Environm Canada, Toronto, ON, Canada.
[Knipping, E. M.] Elect Power Res Inst, Palo Alto, CA USA.
RP Pierce, JR (reprint author), Dalhousie Univ, Dept Phys & Atmospher Sci, Halifax, NS, Canada.
EM jeffrey.robert.pierce@gmail.com
RI Brock, Charles/G-3406-2011; Pierce, Jeffrey/E-4681-2013; Stevens,
Robin/D-1341-2014; Manager, CSD Publications/B-2789-2015
OI Brock, Charles/0000-0002-4033-4668; Pierce, Jeffrey/0000-0002-4241-838X;
Stevens, Robin/0000-0002-8737-6988;
FU Environment Canada; Electrical Power Research Institute (EPRI)
FX This research was funded by Environment Canada and the Electrical Power
Research Institute (EPRI). We would like to thank Annmarie Carlton of
Rutgers University for her suggestions.
NR 41
TC 17
Z9 19
U1 3
U2 44
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1680-7316
J9 ATMOS CHEM PHYS
JI Atmos. Chem. Phys.
PY 2012
VL 12
IS 23
BP 11519
EP 11531
DI 10.5194/acp-12-11519-2012
PG 13
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 058WK
UT WOS:000312665300018
ER
PT J
AU Sheridan, PJ
Andrews, E
Ogren, JA
Tackett, JL
Winker, DM
AF Sheridan, P. J.
Andrews, E.
Ogren, J. A.
Tackett, J. L.
Winker, D. M.
TI Vertical profiles of aerosol optical properties over central Illinois
and comparison with surface and satellite measurements
SO ATMOSPHERIC CHEMISTRY AND PHYSICS
LA English
DT Article
ID RADIATION MEASUREMENT PROGRAM; FILTER-BASED MEASUREMENTS; VISIBLE-LIGHT
ABSORPTION; SINGLE SCATTERING ALBEDO; SOUTHERN GREAT-PLAINS;
ANTHROPOGENIC SULFATE; SPECTRAL DEPENDENCE; AIRCRAFT PROFILES;
CONTINENTAL SITE; ORGANIC-CARBON
AB Between June 2006 and September 2009, an instrumented light aircraft measured over 400 vertical profiles of aerosol and trace gas properties over eastern and central Illinois. The primary objectives of this program were to (1) measure the in situ aerosol properties and determine their vertical and temporal variability and (2) relate these aircraft measurements to concurrent surface and satellite measurements. The primary profile location was within 15 km of the NOAA/ESRL surface aerosol monitoring station near Bondville, Illinois. Identical instruments at the surface and on the aircraft ensured that the data from both platforms would be directly comparable and permitted a determination of how representative surface aerosol properties were of the lower column. Aircraft profiles were also conducted occasionally at two other nearby locations to increase the frequency of A-Train satellite underflights for the purpose of comparing in situ and satellite-retrieved aerosol data. Measurements of aerosol properties conducted at low relative humidity over the Bondville site compare well with the analogous surface aerosol data and do not indicate any major sampling issues or that the aerosol is radically different at the surface compared with the lowest flyby altitude of similar to 240m above ground level. Statistical analyses of the in situ vertical profile data indicate that aerosol light scattering and absorption (related to aerosol amount) decreases substantially with increasing altitude. Parameters related to the nature of the aerosol (e. g., single-scattering albedo, Angstrom exponent, etc.), however, are relatively constant throughout the mixed layer, and do not vary as much as the aerosol amount throughout the profile. While individual profiles often showed more variability, the median in situ single-scattering albedo was 0.93-0.95 for all sampled altitudes. Several parameters (e.g., submicrometer scattering fraction, hemispheric backscattering fraction, and scattering Angstrom exponent) suggest that the fraction of smaller particles in the aerosol is larger near the surface than at high altitudes. The observed dependence of scattering on size, wavelength, angular integration range, and relative humidity, together with the spectral dependence of absorption, show that the aerosol at higher altitudes is larger, less hygroscopic, and more strongly absorbing at shorter wavelengths, suggesting an increased contribution from dust or organic aerosols. The aerosol profiles show significant differences among seasons. The largest amounts of aerosol (as determined by median light extinction profile measurements) throughout most of the sampled column were observed during summer, with the lowest amounts in the winter and intermediate values in the spring and fall. The highest three profile levels (3.1, 3.7, 4.6 km), however, showed larger median extinction values in the spring, which could reflect long-range transport of dust or smoke aerosols. The aerosols in the mixed layer were darkest (i.e., lowest single-scattering albedo) in the fall, in agreement with surface measurements at Bondville and other continental sites in the US. In situ profiles of aerosol radiative forcing efficiency showed little seasonal or vertical variability.
Underflights of the CALIPSO satellite show reasonable agreement in a majority of retrieved profiles between aircraft-measured extinction at 532 nm (adjusted to ambient relative humidity) and CALIPSO-retrieved extinction, and suggest that routine aircraft profiling programs can be used to better understand and validate satellite retrieval algorithms. CALIPSO tended to overestimate the aerosol extinction at this location in some boundary layer flight segments when scattered or broken clouds were present, which could be related to problems with CALIPSO cloud screening methods. The in situ aircraft-collected aerosol data suggest extinction thresholds for the likelihood of aerosol layers being detected by the CALIOP lidar. In this study, aerosol layers with light extinction (532 nm) values > 50 Mm(-1) were detected by CALIPSO similar to 95% of the time, while aerosol layers with extinction values lower than 10 Mm(-1) had a detection efficiency of < 2 %. For all collocated comparison cases, a 50% probability of detection falls at an in situ extinction level of 20-25 Mm(-1). These statistical data offer guidance as to the likelihood of CALIPSO's ability to retrieve aerosol extinction at various locations around the globe.
C1 [Sheridan, P. J.; Andrews, E.; Ogren, J. A.] NOAA, Earth Syst Res Lab, Boulder, CO USA.
[Andrews, E.] Univ Colorado, CIRES, Boulder, CO 80309 USA.
[Tackett, J. L.] Sci Syst & Applicat Inc, Hampton, VA USA.
[Winker, D. M.] NASA, Langley Res Ctr, Hampton, VA 23665 USA.
RP Sheridan, PJ (reprint author), NOAA, Earth Syst Res Lab, Boulder, CO USA.
EM patrick.sheridan@noaa.gov
FU NOAA Climate Program Office
FX The authors wish to thank our pilot, Stan Unander, of the University of
Illinois Institute for Aviation, for flying our profiles and being the
on-site science technician, and Chuck Greenwood of The Greenwood Group
for providing a safe and effective aircraft platform. We also thank Jim
Wendell and Robert Albee of NOAA/ESRL for systems engineering and
fabrication, and Derek Hageman of NOAA/ESRL for data acquisition and
visualization software. We gratefully acknowledge funding for this
project from the NOAA Climate Program Office.
NR 76
TC 16
Z9 16
U1 2
U2 32
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1680-7316
EI 1680-7324
J9 ATMOS CHEM PHYS
JI Atmos. Chem. Phys.
PY 2012
VL 12
IS 23
BP 11695
EP 11721
DI 10.5194/acp-12-11695-2012
PG 27
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 058WK
UT WOS:000312665300029
ER
PT J
AU Baasandorj, M
Hall, BD
Burkholder, JB
AF Baasandorj, M.
Hall, B. D.
Burkholder, J. B.
TI Rate coefficients for the reaction of O(D-1) with the atmospherically
long-lived greenhouse gases NF3, SF5CF3, CHF3, C2F6, c-C4F8, n-C5F12,
and n-C6F14
SO ATMOSPHERIC CHEMISTRY AND PHYSICS
LA English
DT Article
ID NITROGEN TRIFLUORIDE; CROSS-SECTIONS; DEACTIVATION; EFFICIENCY;
LIFETIMES; CHEMISTRY; DYNAMICS; SPECTRUM; SO2F2; ATOMS
AB The contribution of atmospherically persistent (long-lived) greenhouse gases to the radiative forcing of Earth has increased over the past several decades. The impact of highly fluorinated, saturated compounds, in particular perfluorinated compounds, on climate change is a concern because of their long atmospheric lifetimes, which are primarily determined by stratospheric loss processes, as well as their strong absorption in the infrared "window" region. A potentially key stratospheric loss process for these compounds is their gas-phase reaction with electronically excited oxygen atoms, O(D-1). Therefore, accurate reaction rate coefficient data is desired for input to climate change models. In this work, rate coefficients, k, were measured for the reaction of O(D-1) with several key long-lived greenhouse gases, namely NF3, SF5CF3, CHF3 (HFC-23), C2F6, c-C4F8, n-C5F12, and n-C6F14. Room temperature rate coefficients for the total reaction, k(Tot), corresponding to loss of O(D-1), and reactive channel, k(R), corresponding to the loss of the reactant compound, were measured for NF3 and SF5CF3 using competitive reaction and relative rate methods, respectively. k(R) was measured for the CHF3 reaction and improved upper-limits were determined for the perfluorinated compounds included in this study. For NF3, k(Tot) was determined to be (2.55 +/- 0.38) x 10(-11) cm(3) molecule(-1) s(-1) and k(R), which was measured using CF3Cl, N2O, CF2ClCF2Cl (CFC-114), and CF3CFCl2 (CFC-114a) as reference compounds, was determined to be (2.21 +/- 0.33) x 10(-11) cm(3) molecule(-1) s(-1). For SF5CF3, k(Tot) = (3.24 +/- 0.50) x 10(-13) cm(3) molecule(-1) s(-1) and k(R) < 5.8 x 10(-14) cm(3) molecule(-1) s(-1) were measured, where k(R) is a factor of three lower than the current recommendation of kTot for use in atmospheric modeling. For CHF3 k(R) was determined to be (2.35 +/- 0.35) x 10(-12) cm(3) molecule(-1) s(-1), which corresponds to a reactive channel yield of 0.26 +/- 0.04, and resolves a large discrepancy among previously reported values. The quoted uncertainties are 2 sigma and include estimated systematic errors. Upper-limits for k(R) for the C2F6, c-C4F8, n-C5F12, and n-C6F14 reactions were determined to be 3.0, 3.5, 5.0, and 16 (in units of 10-14 cm(3) molecule(-1) s(-1)), respectively. The results from this work are compared with results from previous studies. As part of this work, infrared absorption band strengths for NF3 and SF5CF3 were measured and found to be in good agreement with recently reported values.
C1 [Baasandorj, M.; Burkholder, J. B.] NOAA, Earth Syst Res Lab, Div Chem Sci, Boulder, CO 80305 USA.
[Baasandorj, M.] Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA.
[Hall, B. D.] NOAA, Earth Syst Res Lab, Global Monitoring Div, Boulder, CO 80305 USA.
RP Burkholder, JB (reprint author), NOAA, Earth Syst Res Lab, Div Chem Sci, 325 Broadway, Boulder, CO 80305 USA.
EM james.b.burkholder@noaa.gov
RI Burkholder, James/H-4914-2013; Manager, CSD Publications/B-2789-2015
FU NOAA's Climate Goal; NASA's Atmospheric Composition Program
FX This work was supported in part by NOAA's Climate Goal and NASA's
Atmospheric Composition Program.
NR 30
TC 8
Z9 8
U1 0
U2 22
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1680-7316
J9 ATMOS CHEM PHYS
JI Atmos. Chem. Phys.
PY 2012
VL 12
IS 23
BP 11753
EP 11764
DI 10.5194/acp-12-11753-2012
PG 12
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 058WK
UT WOS:000312665300032
ER
PT J
AU Kellmann, S
von Clarmann, T
Stiller, GP
Eckert, E
Glatthor, N
Hopfner, M
Kiefer, M
Orphal, J
Funke, B
Grabowski, U
Linden, A
Dutton, GS
Elkins, JW
AF Kellmann, S.
von Clarmann, T.
Stiller, G. P.
Eckert, E.
Glatthor, N.
Hoepfner, M.
Kiefer, M.
Orphal, J.
Funke, B.
Grabowski, U.
Linden, A.
Dutton, G. S.
Elkins, J. W.
TI Global CFC-11 (CCl3F) and CFC-12 (CCl2F2) measurements with the
Michelson Interferometer for Passive Atmospheric Sounding (MIPAS):
retrieval, climatologies and trends
SO ATMOSPHERIC CHEMISTRY AND PHYSICS
LA English
DT Article
ID LIMB EMISSION-SPECTRA; IN-SITU MEASUREMENTS; LOWER STRATOSPHERE;
ABSORPTION-COEFFICIENTS; RADIATIVE-TRANSFER; RESOLUTION; AIR;
TEMPERATURE; INSTRUMENT; SPECTROMETER
AB Vertical profiles of CFC-11 (CCl3F) and CFC-12 (CCl2F2) have been measured with the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) with global coverage under daytime and nighttime conditions. The profile retrieval is based on constrained nonlinear least squares fitting of measured limb spectral radiance to modeled spectra. CFC-11 is measured in its nu(4)-band at 850 cm(-1), and CFC-12 is analyzed in its nu(6)-band at 922 cm(-1). To stabilize the retrievals, a Tikhonov-type smoothing constraint is applied. Main retrieval error sources are measurement noise and elevation pointing uncertainties. The estimated CFC-11 retrieval errors including noise and parameter errors but excluding spectroscopic data uncertainties are below 10 pptv in the middle stratosphere, depending on altitude, the MIPAS measurement mode and the actual atmospheric situation. For CFC-12 the total retrieval errors are below 28 pptv at an altitude resolution varying from 3 to 5 km. Time series of altitude/latitude bins were fitted by a simple parametric approach including constant and linear terms, a quasi-biennial oscillation (QBO) proxy and sine and cosine terms of several periods. In the time series from 2002 to 2011, quasi-biennial and annual oscillations are clearly visible. A decrease of stratospheric CFC mixing ratios in response to the Montreal Protocol is observed for most altitudes and latitudes. However, the trends differ from the trends measured in the troposphere, they are even positive at some latitudes and altitudes, and can in some cases only be explained by decadal changes in atmospheric age of air spectra or vertical mixing patterns.
C1 [Kellmann, S.; von Clarmann, T.; Stiller, G. P.; Eckert, E.; Glatthor, N.; Hoepfner, M.; Kiefer, M.; Orphal, J.; Grabowski, U.; Linden, A.] Karlsruhe Inst Technol KIT, Inst Meteorol & Climate Res IMK, Karlsruhe, Germany.
[Funke, B.] CSIC, Inst Astrofis Andalucia, Granada, Spain.
[Dutton, G. S.; Elkins, J. W.] NOAA, Earth Syst Res Lab, Boulder, CO 80305 USA.
[Dutton, G. S.] Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA.
RP Kellmann, S (reprint author), Karlsruhe Inst Technol KIT, Inst Meteorol & Climate Res IMK, Karlsruhe, Germany.
EM sylvia.kellmann@kit.edu
RI Hopfner, Michael/A-7255-2013; Orphal, Johannes/A-8667-2012; von
Clarmann, Thomas/A-7287-2013; Funke, Bernd/C-2162-2008; Glatthor,
Norbert/B-2141-2013; Stiller, Gabriele/A-7340-2013; Kiefer,
Michael/A-7254-2013
OI Hopfner, Michael/0000-0002-4174-9531; Orphal,
Johannes/0000-0002-1943-4496; von Clarmann, Thomas/0000-0003-2219-3379;
Funke, Bernd/0000-0003-0462-4702; Stiller, Gabriele/0000-0003-2883-6873;
FU German Federal Ministry of Education and Research (BMBF) [50EE0901];
Deutsche Forschungsgemeinschaft; Karlsruhe Institute of Technology
FX ESA has provided MIPAS Level-1B data. Meteorological analysis data have
been provided by ECMWF. Development of CFC-11 and CFC-12 data retrieval
was partly funded by the German Federal Ministry of Education and
Research (BMBF) under contract no. 50EE0901. We acknowledge support by
Deutsche Forschungsgemeinschaft and Open Access Publishing Fund of
Karlsruhe Institute of Technology. Partial support for NOAA/ESRL ground
based measurements is from the Atmospheric Composition and Climate
Program of NOAA's Climate Program Office.
NR 75
TC 18
Z9 18
U1 0
U2 14
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1680-7316
EI 1680-7324
J9 ATMOS CHEM PHYS
JI Atmos. Chem. Phys.
PY 2012
VL 12
IS 24
BP 11857
EP 11875
DI 10.5194/acp-12-11857-2012
PG 19
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 058WR
UT WOS:000312666100006
ER
PT J
AU John, JG
Fiore, AM
Naik, V
Horowitz, LW
Dunne, JP
AF John, J. G.
Fiore, A. M.
Naik, V.
Horowitz, L. W.
Dunne, J. P.
TI Climate versus emission drivers of methane lifetime against loss by
tropospheric OH from 1860-2100
SO ATMOSPHERIC CHEMISTRY AND PHYSICS
LA English
DT Article
ID ATMOSPHERIC HYDROXYL RADICALS; CH4 GROWTH-RATE; INTERANNUAL VARIABILITY;
ANTHROPOGENIC EMISSIONS; OZONE POLLUTION; CHEMISTRY MODEL; FUTURE
CHANGES; 2 DECADES; NOX; SENSITIVITY
AB With a more-than-doubling in the atmospheric abundance of the potent greenhouse gas methane (CH4) since preindustrial times, and indications of renewed growth following a leveling off in recent years, questions arise as to future trends and resulting climate and public health impacts from continued growth without mitigation. Changes in atmospheric methane lifetime are determined by factors which regulate the abundance of OH, the primary methane removal mechanism, including changes in CH4 itself. We investigate the role of emissions of short-lived species and climate in determining the evolution of methane lifetime against loss by tropospheric OH, (tau(CH4_OH)), in a suite of historical (1860-2005) and future Representative Concentration Pathway (RCP) simulations (2006-2100), conducted with the Geophysical Fluid Dynamics Laboratory (GFDL) fully coupled chemistry-climate model (CM3). From preindustrial to present, CM3 simulates an overall 5% increase in tau(CH4_OH) due to a doubling of the methane burden which offsets coincident increases in nitrogen oxide (NOx) emissions. Over the last two decades, however, the tau(CH4_OH) declines steadily, coinciding with the most rapid climate warming and observed slow-down in CH4 growth rates, reflecting a possible negative feedback through the CH4 sink. Sensitivity simulations with CM3 suggest that the aerosol indirect effect (aerosol-cloud interactions) plays a significant role in cooling the CM3 climate. The projected decline in aerosols under all RCPs contributes to climate warming over the 21st century, which influences the future evolution of OH concentration and tau(CH4_OH). Projected changes in tau(CH4_OH) from 2006 to 2100 range from -13% to +4%. The only projected increase occurs in the most extreme warming case (RCP8.5) due to the near-doubling of the CH4 abundance, reflecting a positive feedback on the climate system. The largest decrease occurs in the RCP4.5 scenario due to changes in short-lived climate forcing agents which reinforce climate warming and enhance OH. This decrease is more-than-halved in a sensitivity simulation in which only well-mixed greenhouse gas radiative forcing changes along the RCP4.5 scenario (5% vs. 13%).
C1 [John, J. G.; Fiore, A. M.; Horowitz, L. W.; Dunne, J. P.] Geophys Fluid Dynam Laboratory NOAA, Princeton, NJ USA.
[Naik, V.] UCAR Geophys Fluid Dynam Lab, Princeton, NJ USA.
RP John, JG (reprint author), Geophys Fluid Dynam Laboratory NOAA, Princeton, NJ USA.
EM jasmin.john@noaa.gov
RI Dunne, John/F-8086-2012; Horowitz, Larry/D-8048-2014; Naik,
Vaishali/A-4938-2013; John, Jasmin/F-8194-2012
OI Dunne, John/0000-0002-8794-0489; Horowitz, Larry/0000-0002-5886-3314;
Naik, Vaishali/0000-0002-2254-1700; John, Jasmin/0000-0003-2696-277X
NR 94
TC 27
Z9 28
U1 4
U2 30
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1680-7316
EI 1680-7324
J9 ATMOS CHEM PHYS
JI Atmos. Chem. Phys.
PY 2012
VL 12
IS 24
BP 12021
EP 12036
DI 10.5194/acp-12-12021-2012
PG 16
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 058WR
UT WOS:000312666100018
ER
PT J
AU Lin, JT
Liu, Z
Zhang, Q
Liu, H
Mao, J
Zhuang, G
AF Lin, J. -T.
Liu, Z.
Zhang, Q.
Liu, H.
Mao, J.
Zhuang, G.
TI Modeling uncertainties for tropospheric nitrogen dioxide columns
affecting satellite-based inverse modeling of nitrogen oxides emissions
SO ATMOSPHERIC CHEMISTRY AND PHYSICS
LA English
DT Article
ID GAS-PHASE REACTIONS; ATMOSPHERIC CHEMISTRY; UNITED-STATES; NOX
EMISSIONS; PHOTOCHEMICAL DATA; AEROSOL EMISSIONS; CLIMATE MODEL; TRACE
GASES; AIR-QUALITY; INTEX-B
AB Errors in chemical transport models (CTMs) interpreting the relation between space-retrieved tropospheric column densities of nitrogen dioxide (NO2) and emissions of nitrogen oxides (NOx) have important consequences on the inverse modeling. They are however difficult to quantify due to lack of adequate in situ measurements, particularly over China and other developing countries. This study proposes an alternate approach for model evaluation over East China, by analyzing the sensitivity of modeled NO2 columns to errors in meteorological and chemical parameters/processes important to the nitrogen abundance. As a demonstration, it evaluates the nested version of GEOS-Chem driven by the GEOS-5 meteorology and the INTEX-B anthropogenic emissions and used with retrievals from the Ozone Monitoring Instrument (OMI) to constrain emissions of NOx. The CTM has been used extensively for such applications. Errors are examined for a comprehensive set of meteorological and chemical parameters using measurements and/or uncertainty analysis based on current knowledge. Results are exploited then for sensitivity simulations perturbing the respective parameters, as the basis of the following post-model linearized and localized first-order modification. It is found that the model meteorology likely contains errors of various magnitudes in cloud optical depth, air temperature, water vapor, boundary layer height and many other parameters. Model errors also exist in gaseous and heterogeneous reactions, aerosol optical properties and emissions of non-nitrogen species affecting the nitrogen chemistry. Modifications accounting for quantified errors in 10 selected parameters increase the NO2 columns in most areas with an average positive impact of 18% in July and 8% in January, the most important factor being modified uptake of the hydroperoxyl radical (HO2) on aerosols. This suggests a possible systematic model bias such that the top-down emissions will be overestimated by the same magnitude if the model is used for emission inversion without corrections. The modifications however cannot eliminate the large model underestimates in cities and other extremely polluted areas (particularly in the north) as compared to satellite retrievals, likely pointing to underestimates of the a priori emission inventory in these places with important implications for understanding of atmospheric chemistry and air quality. Note that these modifications are simplified and should be interpreted with caution for error apportionment.
C1 [Lin, J. -T.] Peking Univ, Dept Atmospher & Ocean Sci, Sch Phys, Lab Climate & Ocean Atmosphere Studies, Beijing 100871, Peoples R China.
[Liu, Z.] Sandia Natl Labs, Combust Res Facil, Livermore, CA 94551 USA.
[Zhang, Q.] Tsinghua Univ, Ctr Earth Syst Sci, Beijing 100084, Peoples R China.
[Liu, H.] Natl Inst Aerosp, Hampton, VA 23666 USA.
[Mao, J.] Princeton Univ, Program Atmospher & Ocean Sci, Princeton, NJ 08542 USA.
[Mao, J.] NOAA, Geophys Fluid Dynam Lab, Princeton, NJ 08542 USA.
[Zhuang, G.] Fudan Univ, Dept Environm Sci & Engn, Ctr Atmospher Chem Study, Shanghai 200433, Peoples R China.
RP Lin, JT (reprint author), Peking Univ, Dept Atmospher & Ocean Sci, Sch Phys, Lab Climate & Ocean Atmosphere Studies, Beijing 100871, Peoples R China.
EM linjt@pku.edu.cn
RI Lin, Jintai/A-8872-2012; Mao, Jingqiu/F-2511-2010; Chem,
GEOS/C-5595-2014; Zhang, Qiang/D-9034-2012; Liu, Zhen/C-3027-2011; 杨,
宇栋/F-6250-2012
OI Lin, Jintai/0000-0002-2362-2940; Mao, Jingqiu/0000-0002-4774-9751;
FU National Natural Science Foundation of China [41005078, 41175127,
41128005]; MOST, China [2010DFA92230]
FX This research is supported by the National Natural Science Foundation of
China, grant 41005078 and 41175127. The work of G. Zhuang is supported
by the great international collaboration project of MOST, China
(2010DFA92230), National Natural Science Foundation of China (Grant No.
41128005, fund for collaboration with oversea scholars). We acknowledge
the free use of tropospheric NO2 column data from
www.temis.nl, MODIS AOD data from NASA, and meteorological data from
NOAA NCDC and the ISCCP project. We thank Randall V. Martin and Mathew
Evans for useful comments.
NR 80
TC 25
Z9 26
U1 2
U2 45
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1680-7316
EI 1680-7324
J9 ATMOS CHEM PHYS
JI Atmos. Chem. Phys.
PY 2012
VL 12
IS 24
BP 12255
EP 12275
DI 10.5194/acp-12-12255-2012
PG 21
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 058WR
UT WOS:000312666100032
ER
PT J
AU Mates, SP
Ridder, SD
Biancaniello, FS
Zahrah, T
AF Mates, S. P.
Ridder, S. D.
Biancaniello, F. S.
Zahrah, T.
TI VACUUM-ASSISTED GAS ATOMIZATION OF LIQUID METAL
SO ATOMIZATION AND SPRAYS
LA English
DT Article
DE gas atomization; metal powder; particle size control
ID CLOSE-COUPLED ATOMIZER; BREAK-UP; NOZZLE GEOMETRY; FLOW; INSTABILITY;
BEHAVIOR; POWDERS; STREAM; JET
AB Vacuum-assisted gas atomization of liquid metal is explored. The investigation is motivated by observations of liquid metal atomization that indicate that secondary atomization is sustained over an extended distance from the nozzle tip. Increasing the velocity of the gas flow downstream of the nozzle exit by lowering the nozzle back pressure below ambient may therefore improve atomization efficiency. Supersonic jets grow in length when the nozzle back pressure is lowered due to an increase in the nozzle pressure ratio. However, since the nozzle mass flux remains fixed, any improvements in vacuum-assisted atomization efficiency will be realized without any increase to the gas-to-metal mass flow ratio, which is of interest both academically and practically as gas consumption can be costly. Small (25-kg batch) atomization runs were performed using an Al-Cu-Ni glass-forming alloy in which a high-mass-flow vacuum system was employed to maintain a sub-ambient chamber pressure over the course of an entire run. The powder produced in this manner was then compared to the conventional method without the vacuum system operating. Results demonstrate that atomizing into a partial vacuum decreases the frequency of the coarsest particles in the powder size distributions, leading to a narrower particle size distribution. Further, they underscore the importance of the axial length scale affecting secondary atomization that is related to, but not fully described by, the gas-to-liquid mass flux ratio. The present experiments point out a significant and unexplored parameter space that may be exploited to increase control over particle size distributions.
C1 [Mates, S. P.; Ridder, S. D.; Biancaniello, F. S.] NIST, Gaithersburg, MD 20899 USA.
[Zahrah, T.] MATSYS Inc, Sterling, VA 20166 USA.
RP Mates, SP (reprint author), NIST, Gaithersburg, MD 20899 USA.
EM smates@nist.gov
NR 40
TC 0
Z9 0
U1 4
U2 20
PU BEGELL HOUSE INC
PI REDDING
PA 50 CROSS HIGHWAY, REDDING, CT 06896 USA
SN 1044-5110
J9 ATOMIZATION SPRAY
JI Atom. Sprays
PY 2012
VL 22
IS 7
BP 581
EP 601
PG 21
WC Engineering, Multidisciplinary; Engineering, Chemical; Engineering,
Mechanical; Materials Science, Multidisciplinary; Physics, Applied
SC Engineering; Materials Science; Physics
GA 065KL
UT WOS:000313147100003
ER
PT J
AU de Souza, GF
Reynolds, BC
Johnson, GC
Bullister, JL
Bourdon, B
AF de Souza, G. F.
Reynolds, B. C.
Johnson, G. C.
Bullister, J. L.
Bourdon, B.
TI Silicon stable isotope distribution traces Southern Ocean export of Si
to the eastern South Pacific thermocline
SO BIOGEOSCIENCES
LA English
DT Article
ID TOTAL GEOSTROPHIC CIRCULATION; EQUATORIAL PACIFIC; HYDROGRAPHIC SECTION;
INTERMEDIATE WATER; FLOW PATTERNS; NORTH PACIFIC; FRACTIONATION;
VENTILATION; MODE; TRANSPORTS
AB The cycling and transport of dissolved silicon (Si) in the ocean may be traced by its stable isotope composition, delta Si-30. We present a dataset of delta Si-30 values along 103 degrees W in the eastern South Pacific Ocean, ranging from the Antarctic Zone of the Southern Ocean (62 degrees S) to the equatorial Pacific (12 degrees S). At high southern latitudes, the uptake and associated isotope fractionation of Si by diatoms results in highly elevated delta Si-30 values (up to +3.2 parts per thousand) in the summer mixed layer. High delta Si-30 values (+2 parts per thousand) are also preserved in the high-latitude fossil winter mixed layer, documenting the efficient export of diatom opal beyond the maximum depth of winter convection. This elevated winter mixed layer delta Si-30 signature is introduced into the ocean interior by the subduction of Subantarctic Mode Water (SAMW) and Antarctic Intermediate Water (AAIW), whose northward spreading results in a strong isopycnal control on lower-thermocline and intermediate delta Si-30 values in the well-ventilated eastern South Pacific. Values of delta Si-30 are strongly conserved along SAMW and AAIW density levels as far north as 26 degrees S, documenting the importance of the export of preformed Si from the surface Southern Ocean to lower latitudes. In contrast, in the equatorial Pacific, depressed delta Si-30 values in the mesopelagic ocean are observed, most likely documenting the combined influence of a North Pacific Si source as well as the accumulation of remineralized Si within the eastern equatorial Pacific shadow zone. At depth, delta Si-30 values in the South Pacific remain indistinguishable from deep Southern Ocean values of +1.25 parts per thousand, even within Si-rich and oxygen-poor deep waters returning from the North Pacific. This homogeneity implies that the dissolution of opal plays a negligible role in altering the delta Si-30 value of deep waters as they traverse the deep Pacific Ocean.
C1 [de Souza, G. F.; Reynolds, B. C.; Bourdon, B.] ETH, Inst Geochem & Petrol, Zurich, Switzerland.
[Johnson, G. C.; Bullister, J. L.] Natl Ocean & Atmospher Adm, Pacific Marine Environm Lab, Seattle, WA USA.
RP de Souza, GF (reprint author), Princeton Univ, Atmospher & Ocean Sci Program, Princeton, NJ 08544 USA.
EM gfds@princeton.edu
RI Johnson, Gregory/I-6559-2012;
OI Johnson, Gregory/0000-0002-8023-4020; de Souza,
Gregory/0000-0002-0232-2690
FU NSF/NOAA; Swiss National Science Foundation [200021-116473,
200020-130361]
FX William Landing is gratefully acknowledged for collecting samples for
delta30Si analysis from the CLIVAR I06S re-occupation.
Cruises 33RO20071215 and 33RR20080204 were undertaken as part of the US
Repeat Hydrography Program funded by NSF/NOAA; the authors wish to thank
the captains and crews of R/V Ronald H. Brown and Roger Revelle as well
as K. Speer as Chief Scientist on cruise 33RR20080204. Bottle data were
accessed from data files p18_33RO20071215_hy1.csv (dated 20111215) and
i06s_33RR20080204_hy1.csv (dated 20110904), CLIVAR and Carbon
Hydrographic Data Office, La Jolla, CA, USA; the contributions of Molly
Baringer, Calvin Mordy, Jia-Zhong Zhang, Chris Langdon, and Mark Warner
toward producing these data are acknowledged. The authors thank Damien
Cardinal and an anonymous reviewer for their constructive reviews, and
Christine Klaas for editorial handling. This study was supported by
Swiss National Science Foundation grants 200021-116473 and
200020-130361.
NR 63
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U1 0
U2 40
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1726-4170
J9 BIOGEOSCIENCES
JI Biogeosciences
PY 2012
VL 9
IS 11
BP 4199
EP 4213
DI 10.5194/bg-9-4199-2012
PG 15
WC Ecology; Geosciences, Multidisciplinary
SC Environmental Sciences & Ecology; Geology
GA 058XC
UT WOS:000312667300001
ER
PT J
AU Bourbonnais, A
Juniper, SK
Butterfield, DA
Devol, AH
Kuypers, MMM
Lavik, G
Hallam, SJ
Wenk, CB
Chang, BX
Murdock, SA
Lehmann, MF
AF Bourbonnais, A.
Juniper, S. K.
Butterfield, D. A.
Devol, A. H.
Kuypers, M. M. M.
Lavik, G.
Hallam, S. J.
Wenk, C. B.
Chang, B. X.
Murdock, S. A.
Lehmann, M. F.
TI Activity and abundance of denitrifying bacteria in the subsurface
biosphere of diffuse hydrothermal vents of the Juan de Fuca Ridge
SO BIOGEOSCIENCES
LA English
DT Article
ID ANAEROBIC AMMONIUM OXIDATION; SULFUR-OXIDIZING CHEMOLITHOAUTOTROPH;
OCEANIC FIXED NITROGEN; OXYGEN MINIMUM ZONE; EPSILON-PROTEOBACTERIA;
DENITRIFICATION RATES; ARABIAN SEA; SP-NOV.; SUBMARINE VOLCANOS; ANAMMOX
BACTERIA
AB Little is known about fixed nitrogen (N) transformation and elimination at diffuse hydrothermal vents where anoxic fluids are mixed with oxygenated crustal seawater prior to discharge. Oceanic N sinks that remove bio-available N ultimately affect chemosynthetic primary productivity in these ecosystems. Using N-15 paired isotope techniques, we determined potential rates of fixed N loss pathways (denitrification, anammox) and dissimilatory nitrate reduction to ammonium (DNRA) in sulfidic hydrothermal vent fluids discharging from the subsurface at several sites at Axial Volcano and the Endeavour Segment on the Juan de Fuca Ridge. We also measured physico-chemical parameters (i.e., temperature, pH, nutrients, H2S and N2O concentrations) as well as the biodiversity and abundance of chemolithoautotrophic nitrate-reducing, sulfur-oxidizing gamma-proteobacteria (SUP05 cluster) using sequence analysis of amplified small subunit ribosomal RNA (16S rRNA) genes in combination with taxon-specific quantitative polymerase chain reaction (qPCR) assays. Denitrification was the dominant N loss pathway in the subsurface biosphere of the Juan de Fuca Ridge, with rates of up to similar to 1000 nmol N l(-1) day(-1). In comparison, anammox rates were always < 5 nmol N l(-1) day(-1) and below the detection limit at most of the sites. DNRA rates were up to similar to 150 nmol N l(-1) day(-1). These results suggest that bacterial denitrification out-competes anammox in sulfidic hydrothermal vent waters. Taxon-specific qPCR revealed that gamma-proteobacteria of the SUP05 cluster sometimes dominated the microbial community (SUP05/total bacteria up to 38 %). Significant correlations were found between fixed N loss (i.e., denitrification, anammox) rates and in situ nitrate and dissolved inorganic nitrogen (DIN) deficits in the fluids, indicating that DIN availability may ultimately regulate N loss in the subsurface. Based on our rate measurements, and on published data on hydrothermal fluid fluxes and residence times, we estimated that up to similar to 10 Tg N yr(-1) could globally be removed in the subsurface biosphere of hydrothermal vents systems, thus, representing a small fraction of the total marine N loss (similar to 275 to > 400 Tg N yr(-1)).
C1 [Bourbonnais, A.; Juniper, S. K.; Murdock, S. A.] Univ Victoria, Sch Earth & Ocean Sci, Victoria, BC V8P 5C2, Canada.
[Butterfield, D. A.] Univ Washington, Joint Inst Study Atmosphere & Ocean, Seattle, WA 98105 USA.
[Butterfield, D. A.] NOAA, Pacific Marine Environm Lab, Seattle, WA 98115 USA.
[Devol, A. H.] Univ Washington, Sch Oceanog, Seattle, WA 98195 USA.
[Kuypers, M. M. M.; Lavik, G.] Max Planck Inst Marine Microbiol, Dept Biogeochem, D-28359 Bremen, Germany.
[Hallam, S. J.] Univ British Columbia, Dept Microbiol & Immunol, Vancouver, BC V6T 1Z3, Canada.
[Hallam, S. J.] Univ British Columbia, Grad Programme Bioinformat, Vancouver, BC V6T 1Z3, Canada.
[Wenk, C. B.; Lehmann, M. F.] Univ Basel, Dept Environm Sci, CH-4056 Basel, Switzerland.
[Chang, B. X.] Princeton Univ, Dept Environm Sci, Princeton, NJ 08544 USA.
RP Bourbonnais, A (reprint author), Univ Victoria, Sch Earth & Ocean Sci, Victoria, BC V8P 5C2, Canada.
EM annieb@uvic.ca
RI Lavik, Gaute/F-6578-2013; Lehmann, Moritz/A-3301-2014; Butterfield,
David/H-3815-2016
OI Lehmann, Moritz/0000-0003-0626-5942; Butterfield,
David/0000-0002-1595-9279
FU Natural Sciences and Engineering Research Council (NSERC) of Canada;
National Oceanographic and Atmospheric Administration (NOAA);
Max-Planck-Gesellschaft; Canada Foundation for Innovation (CFI);
Canadian Institute for Advanced Research (CIFAR); NSERC; PEO; SNF (Swiss
National Science Foundation); U. S. N. S. F. [OCE 0731947]; NOAA/PMEL
Vents Programme [2028, 3835]
FX This work was supported by the Natural Sciences and Engineering Research
Council (NSERC) of Canada, the National Oceanographic and Atmospheric
Administration (NOAA), the Max-Planck-Gesellschaft, the Canada
Foundation for Innovation (CFI), and the Canadian Institute for Advanced
Research (CIFAR). A. B. benefited from an NSERC graduate fellowship and
a PEO Scholar Award. S. K. J. was funded by an NSERC Discovery grant, M.
F. L. by NSERC Discovery and SNF (Swiss National Science Foundation)
R'Equip grants, D. A. B. was supported by U. S. N. S. F. grant OCE
0731947 and the NOAA/PMEL Vents Programme (JISAO contribution number
2028, PMEL contribution number 3835), and S. H. was supported by CFI and
CIFAR. We thank James Holden, Bill Chadwick, the officers and crew of
the R/V Atlantis and R/V Thomas G. Thompson, and the ROPOS, Jason and
Alvin submersible teams for exceptional field support, and Rika
Anderson, Karina Giesbreck, Mark Haught, Alyse Hawley, Kevin Roe, Real
Roy, Mark Rollog, Charles Stump, Elena Zaikova, and Jakob Zopfi for
laboratory assistance. We also thank Julie Huber and Rika Anderson (John
Baross' lab, University of Washington) and Helene C. Ver Eecke (James
Holden's lab, University of Massachusetts) for sharing eDNA and
bacterial count data, and Roberta Hamme for her help with
denitrification rate measurements for the 2008 cruises. The CouchSurfing
community provided accommodation for A. B. during sample analyses in
Vancouver (Canada), Seattle (USA) and Bremen (Germany).
NR 89
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U1 9
U2 76
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1726-4170
J9 BIOGEOSCIENCES
JI Biogeosciences
PY 2012
VL 9
IS 11
BP 4661
EP 4678
DI 10.5194/bg-9-4661-2012
PG 18
WC Ecology; Geosciences, Multidisciplinary
SC Environmental Sciences & Ecology; Geology
GA 058XC
UT WOS:000312667300034
ER
PT J
AU Gloor, M
Gatti, L
Brienen, R
Feldpausch, TR
Phillips, OL
Miller, J
Ometto, JP
Rocha, H
Baker, T
de Jong, B
Houghton, RA
Malhi, Y
Aragao, LEOC
Guyot, JL
Zhao, K
Jackson, R
Peylin, P
Sitch, S
Poulter, B
Lomas, M
Zaehle, S
Huntingford, C
Levy, P
Lloyd, J
AF Gloor, M.
Gatti, L.
Brienen, R.
Feldpausch, T. R.
Phillips, O. L.
Miller, J.
Ometto, J. P.
Rocha, H.
Baker, T.
de Jong, B.
Houghton, R. A.
Malhi, Y.
Aragao, L. E. O. C.
Guyot, J. -L.
Zhao, K.
Jackson, R.
Peylin, P.
Sitch, S.
Poulter, B.
Lomas, M.
Zaehle, S.
Huntingford, C.
Levy, P.
Lloyd, J.
TI The carbon balance of South America: a review of the status, decadal
trends and main determinants
SO BIOGEOSCIENCES
LA English
DT Review
ID WATER-USE EFFICIENCY; AMAZON RAIN-FOREST; LAND-COVER CHANGE; TROPICAL
FORESTS; VERTICAL PROFILES; ATMOSPHERIC CO2; SOIL CARBON; DEFORESTATION;
CLIMATE; BASIN
AB We summarise the contemporary carbon budget of South America and relate it to its dominant controls: population and economic growth, changes in land use practices and a changing atmospheric environment and climate. Component flux estimate methods we consider sufficiently reliable for this purpose encompass fossil fuel emission inventories, biometric analysis of old-growth rainforests, estimation of carbon release associated with deforestation based on remote sensing and inventories, and agricultural export data. Alternative methods for the estimation of the continental-scale net land to atmosphere CO2 flux, such as atmospheric transport inverse modelling and terrestrial biosphere model predictions, are, we find, hampered by the data paucity, and improved parameterisation and validation exercises are required before reliable estimates can be obtained. From our analysis of available data, we suggest that South America was a net source to the atmosphere during the 1980s (similar to 0.3-0.4 Pg C a(-1)) and close to neutral (similar to 0.1 Pg C a(-1)) in the 1990s. During the latter period, carbon uptake in old-growth forests nearly compensated for the carbon release associated with fossil fuel burning and deforestation.
Annual mean precipitation over tropical South America as inferred from Amazon River discharge shows a long-term upward trend. Although, over the last decade dry seasons have tended to be drier, with the years 2005 and 2010 in particular experiencing strong droughts. On the other hand, precipitation during the wet seasons also shows an increasing trend. Air temperatures have also increased slightly. Also with increases in atmospheric CO2 concentrations, it is currently unclear what effect these climate changes are having on the forest carbon balance of the region. Current indications are that the forests of the Amazon Basin have acted as a substantial long-term carbon sink, but with the most recent measurements suggesting that this sink may be weakening. Economic development of the tropical regions of the continent is advancing steadily, with exports of agricultural products being an important driver and witnessing a strong upturn over the last decade.
C1 [Gloor, M.; Brienen, R.; Feldpausch, T. R.; Phillips, O. L.; Baker, T.; Lloyd, J.] Univ Leeds, Sch Geog, Leeds LS9 2JT, W Yorkshire, England.
[Gatti, L.] CNEN IPEN Lab, Sao Paulo, Brazil.
[Miller, J.] NOAA, ESRL R, GMD1, Boulder, CO 80305 USA.
[Ometto, J. P.] Natl Inst Space Res INPE, Earth Syst Sci Ctr CCST, BR-12227010 Sao Jose Dos Campos, Brazil.
[Rocha, H.] Univ Sao Paulo, IAG, Dept Ciencias Atmosfer, Sao Paulo, Brazil.
[Malhi, Y.] Univ Oxford, Environm Change Inst, Sch Geog & Environm, Oxford OX1 3QY, England.
[Houghton, R. A.] Woods Hole Res Ctr, Falmouth, MA 02540 USA.
[Aragao, L. E. O. C.] Univ Exeter, Sch Geog, Exeter EX4 4RJ, Devon, England.
[Guyot, J. -L.] IRD, BR-71635971 Brasilia, DF, Brazil.
[Zhao, K.; Jackson, R.] Duke Univ, Nicholas Sch Environm, Durham, NC 27708 USA.
[Peylin, P.] CEA Ctr Saclay, LSCE, F-91191 Gif Sur Yvette, France.
[Poulter, B.] Lab Sci Climat & Environm LSCE Orme Merisiers, F-91191 Gif Sur Yvette, France.
[Sitch, S.] Univ Exeter, Coll Life & Environm Sci, Exeter EX4 4RJ, Devon, England.
[Lomas, M.] Univ Sheffield, CTCD, Sheffield S3 7RH, S Yorkshire, England.
[Zaehle, S.] Max Planck Inst Biogeochem, Biogeochem Syst Dept, D-07701 Jena, Germany.
[Huntingford, C.; Levy, P.] Ctr Ecol & Hydrol, Penicuik EH26 0QB, Midlothian, Scotland.
[Lloyd, J.] James Cook Univ, Sch Earth & Environm Studies, Cairns, Qld 4878, Australia.
[de Jong, B.] El Colegio Frontera ECOSUR, Chiapas 29290, Mexico.
RP Gloor, M (reprint author), Univ Leeds, Sch Geog, Woodhouse Lane, Leeds LS9 2JT, W Yorkshire, England.
EM eugloor@googlemail.com
RI Huntingford, Chris/A-4307-2008; Ometto, Jean/B-3351-2013; Lloyd,
Jonathan/F-8893-2010; Phillips, Oliver/A-1523-2011; Feldpausch,
Ted/D-3436-2009; Zhao, Kaiguang/D-1172-2010; Sitch, Stephen/F-8034-2015;
Vuichard, Nicolas/A-6629-2011; Guyot, Jean Loup/A-4193-2010; Zaehle,
Sonke/C-9528-2017;
OI Lloyd, Jonathan/0000-0002-5458-9960; Phillips,
Oliver/0000-0002-8993-6168; Feldpausch, Ted/0000-0002-6631-7962; Sitch,
Stephen/0000-0003-1821-8561; Guyot, Jean Loup/0000-0001-6298-7806;
Zaehle, Sonke/0000-0001-5602-7956; Huntingford,
Chris/0000-0002-5941-7770; Poulter, Benjamin/0000-0002-9493-8600
FU AMAZONICA NERC [NE/F005806/1]; TROBIT consortia grants; MOORE
foundation; UK Natural Environment Research Council (NERC)
[NE/F015356/2, NE/l018123/1]
FX We would like to thank Phil Rees, who has advised us on demographic
data, the AMAZONICA NERC (NE/F005806/1) and TROBIT consortia grants, and
the MOORE foundation, who have supported MG, RB, OP, and TF, and L. E.
O. C. Aragao acknowledges the support of the UK Natural Environment
Research Council (NERC) grants (NE/F015356/2 and NE/l018123/1). We also
thank Han Dolman, Pep Canadell and Philippe Ciais for inviting us to
participate in the RECCAP effort and to attend the Virginia workshop.
Shiela Lloyd assisted with manuscript preparation. We also acknowledge
helpful comments from one of the reviewers.
NR 93
TC 31
Z9 32
U1 6
U2 158
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1726-4170
EI 1726-4189
J9 BIOGEOSCIENCES
JI Biogeosciences
PY 2012
VL 9
IS 12
BP 5407
EP 5430
DI 10.5194/bg-9-5407-2012
PG 24
WC Ecology; Geosciences, Multidisciplinary
SC Environmental Sciences & Ecology; Geology
GA 058XJ
UT WOS:000312668100033
ER
PT J
AU Pietikainen, JP
O'Donnell, D
Teichmann, C
Karstens, U
Pfeifer, S
Kazil, J
Podzun, R
Fiedler, S
Kokkola, H
Birmili, W
O'Dowd, C
Baltensperger, U
Weingartner, E
Gehrig, R
Spindler, G
Kulmala, M
Feichter, J
Jacob, D
Laaksonen, A
AF Pietikainen, J. -P.
O'Donnell, D.
Teichmann, C.
Karstens, U.
Pfeifer, S.
Kazil, J.
Podzun, R.
Fiedler, S.
Kokkola, H.
Birmili, W.
O'Dowd, C.
Baltensperger, U.
Weingartner, E.
Gehrig, R.
Spindler, G.
Kulmala, M.
Feichter, J.
Jacob, D.
Laaksonen, A.
TI The regional aerosol-climate model REMO-HAM
SO GEOSCIENTIFIC MODEL DEVELOPMENT
LA English
DT Article
ID GENERAL-CIRCULATION MODEL; DRY DEPOSITION PARAMETERIZATION; BACK
TRAJECTORIES ANALYSIS; SMALL IMPLICIT DIFFUSION; NUCLEATION EVENTS;
PARTICLE FORMATION; BOUNDARY-LAYER; STRATOSPHERIC CONDITIONS; NUMBER
CONCENTRATIONS; CLOUD MICROPHYSICS
AB REMO-HAM is a new regional aerosol-climate model. It is based on the REMO regional climate model and includes most of the major aerosol processes. The structure for aerosol is similar to the global aerosol-climate model ECHAM5-HAM, for example the aerosol module HAM is coupled with a two-moment stratiform cloud scheme. On the other hand, REMO-HAM does not include an online coupled aerosol-radiation nor a secondary organic aerosol module. In this work, we evaluate the model and compare the results against ECHAM5-HAM and measurements. Four different measurement sites were chosen for the comparison of total number concentrations, size distributions and gas phase sulfur dioxide concentrations: Hyytiala in Finland, Melpitz in Germany, Mace Head in Ireland and Jungfraujoch in Switzerland. REMO-HAM is run with two different resolutions: 50 x 50 km(2) and 10 x 10 km(2). Based on our simulations, REMO-HAM is in reasonable agreement with the measured values. The differences in the total number concentrations between REMO-HAM and ECHAM5-HAM can be mainly explained by the difference in the nucleation mode. Since we did not use activation nor kinetic nucleation for the boundary layer, the total number concentrations are somewhat underestimated. From the meteorological point of view, REMO-HAM represents the precipitation fields and 2 m temperature profile very well compared to measurement. Overall, we show that REMO-HAM is a functional aerosol-climate model, which will be used in further studies.
C1 [Pietikainen, J. -P.; O'Donnell, D.; Kokkola, H.; Laaksonen, A.] Finnish Meteorol Inst, FIN-00101 Helsinki, Finland.
[Pietikainen, J. -P.; Teichmann, C.; Podzun, R.; Feichter, J.; Jacob, D.] Max Planck Inst Meteorol, D-20146 Hamburg, Germany.
[Pietikainen, J. -P.; Teichmann, C.; Pfeifer, S.; Podzun, R.; Jacob, D.] Climate Serv Ctr, D-20095 Hamburg, Germany.
[Karstens, U.] Max Planck Inst Biogeochem, D-07745 Jena, Germany.
[Kazil, J.] Univ Colorado, CIRES, Boulder, CO 80309 USA.
[Kazil, J.] NOAA, ESRL, Boulder, CO 80305 USA.
[Fiedler, S.] Univ Leeds, Inst Climate & Atmospher Sci, Leeds LS2 9JT, W Yorkshire, England.
[Birmili, W.] Leibniz Inst Tropospher Res IfT, D-04318 Leipzig, Germany.
[O'Dowd, C.] Natl Univ Ireland Galway, Galway, Ireland.
[Baltensperger, U.; Weingartner, E.] Paul Scherrer Inst, Lab Atmospher Chem, CH-5232 Villigen, Switzerland.
[Gehrig, R.] Empa Swiss Fed Labs Mat Sci & Technol, CH-8600 Dubendorf, Switzerland.
[Kulmala, M.] Univ Helsinki, Dept Phys, Helsinki 00014, Finland.
[Laaksonen, A.] Univ Eastern Finland, Dept Appl Phys, Kuopio 70211, Finland.
RP Pietikainen, JP (reprint author), Finnish Meteorol Inst, POB 503, FIN-00101 Helsinki, Finland.
EM joni-pekka.pietikainen@fmi.fi
RI Kazil, Jan/B-7652-2013; Laaksonen, Ari/B-5094-2011; Weingartner,
Ernest/B-6793-2009; Teichmann, Claas/J-1149-2014; Kokkola,
Harri/J-5993-2014; O'Dowd , Colin/K-8904-2012; Pietikainen,
Joni-Pekka/H-4228-2015; Karstens, Ute/P-7075-2014; Kulmala,
Markku/I-7671-2016; Manager, CSD Publications/B-2789-2015
OI Fiedler, Stephanie/0000-0001-8898-9949; Kazil, Jan/0000-0003-3271-2451;
Laaksonen, Ari/0000-0002-1657-2383; Weingartner,
Ernest/0000-0002-2427-4634; Teichmann, Claas/0000-0003-2478-7074; O'Dowd
, Colin/0000-0002-3068-2212; Pietikainen,
Joni-Pekka/0000-0002-9270-4739; Karstens, Ute/0000-0002-8985-7742;
Kulmala, Markku/0000-0003-3464-7825;
FU Academy of Finland [136175]; Emil Aaltonen Foundation; Saastamoinen
Foundation; University of Eastern Finland
FX We wish to thank Sebastian Rast (MPI-M Hamburg) for all the help with
ECHAM(5-HAM) model. We are also grateful to Margaret Ryan (Met Eireann,
Ireland) for providing the Valentia observatory data. Many thanks also
to Ulrike Lohmann (ETH Zurich) for all the help with the new cloud
scheme. We would also like to acknowledge the support from the Academy
of Finland (project nr. 136175), Emil Aaltonen Foundation, Saastamoinen
Foundation, and the University of Eastern Finland.
NR 73
TC 5
Z9 5
U1 2
U2 24
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1991-959X
EI 1991-9603
J9 GEOSCI MODEL DEV
JI Geosci. Model Dev.
PY 2012
VL 5
IS 6
BP 1323
EP 1339
DI 10.5194/gmd-5-1323-2012
PG 17
WC Geosciences, Multidisciplinary
SC Geology
GA 059HW
UT WOS:000312696000001
ER
PT J
AU Lawrence, BN
Balaji, V
Bentley, P
Callaghan, S
DeLuca, C
Denvil, S
Devine, G
Elkington, M
Ford, RW
Guilyardi, E
Lautenschlager, M
Morgan, M
Moine, MP
Murphy, S
Pascoe, C
Ramthun, H
Slavin, P
Steenman-Clark, L
Toussaint, F
Treshansky, A
Valcke, S
AF Lawrence, B. N.
Balaji, V.
Bentley, P.
Callaghan, S.
DeLuca, C.
Denvil, S.
Devine, G.
Elkington, M.
Ford, R. W.
Guilyardi, E.
Lautenschlager, M.
Morgan, M.
Moine, M-P.
Murphy, S.
Pascoe, C.
Ramthun, H.
Slavin, P.
Steenman-Clark, L.
Toussaint, F.
Treshansky, A.
Valcke, S.
TI Describing Earth system simulations with the Metafor CIM
SO GEOSCIENTIFIC MODEL DEVELOPMENT
LA English
DT Article
AB The Metafor project has developed a common information model (CIM) using the ISO19100 series formalism to describe numerical experiments carried out by the Earth system modelling community, the models they use, and the simulations that result. Here we describe the mechanism by which the CIM was developed, and its key properties. We introduce the conceptual and application versions and the controlled vocabularies developed in the context of supporting the fifth Coupled Model Intercomparison Project (CMIP5). We describe how the CIM has been used in experiments to describe model coupling properties and describe the near term expected evolution of the CIM.
C1 [Lawrence, B. N.; Devine, G.; Guilyardi, E.; Steenman-Clark, L.] Univ Reading, Dept Meteorol, Reading RG6 2AH, Berks, England.
[Lawrence, B. N.; Callaghan, S.; Pascoe, C.] STFC Rutherford Appleton Lab, Ctr Environm Data Archival, Rutherford, NJ USA.
[Balaji, V.] Princeton Univ, Princeton, NJ 08544 USA.
[Balaji, V.] NOAA, Geophys Fluid Dynam Lab, Princeton, NJ USA.
[Bentley, P.; Elkington, M.] Hadley Ctr, Met Off, Exeter, Devon, England.
[DeLuca, C.; Murphy, S.; Treshansky, A.] Univ Colorado, NOAA, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA.
[Denvil, S.; Guilyardi, E.; Morgan, M.] CNRS, Inst Pierre Simon Laplace, Paris, France.
[Ford, R. W.; Slavin, P.] Univ Manchester, Sch Comp Sci, Manchester M13 9PL, Lancs, England.
[Lautenschlager, M.; Ramthun, H.; Toussaint, F.] Deutsch Klimarechenzentrum, Hamburg, Germany.
[Moine, M-P.; Valcke, S.] CERFACS, F-31057 Toulouse, France.
RP Lawrence, BN (reprint author), Univ Reading, Dept Meteorol, Reading RG6 2AH, Berks, England.
EM b.n.lawrence@reading.ac.uk
RI Guilyardi, Eric/D-4868-2011;
OI Guilyardi, Eric/0000-0002-2255-8625; Ramthun, Hans/0000-0002-1777-9132;
Lawrence, Bryan/0000-0001-9262-7860
FU EU [211753]; NSF [0513635, 0513762]; NSF Graduate Research Fellowship;
UK Natural Environment Research Council; NASA Modeling Analysis and
Prediction Program; NOAA Global Interoperabilty Program
FX Metafor was funded by the EU 7th Framework Programme as an
e-infrastructure (project# 211753). The Curator project was supported by
NSF Grants 0513635, 0513762 and the NSF Graduate Research Fellowship.
Additional support was provided by the UK Natural Environment Research
Council national capability funding for NCAS, the NASA Modeling Analysis
and Prediction Program and the NOAA Global Interoperabilty Program.
NR 12
TC 6
Z9 6
U1 0
U2 12
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1991-959X
J9 GEOSCI MODEL DEV
JI Geosci. Model Dev.
PY 2012
VL 5
IS 6
BP 1493
EP 1500
DI 10.5194/gmd-5-1493-2012
PG 8
WC Geosciences, Multidisciplinary
SC Geology
GA 059HW
UT WOS:000312696000010
ER
PT J
AU Valcke, S
Balaji, V
Craig, A
DeLuca, C
Dunlap, R
Ford, RW
Jacob, R
Larson, J
O'Kuinghttons, R
Riley, GD
Vertenstein, M
AF Valcke, S.
Balaji, V.
Craig, A.
DeLuca, C.
Dunlap, R.
Ford, R. W.
Jacob, R.
Larson, J.
O'Kuinghttons, R.
Riley, G. D.
Vertenstein, M.
TI Coupling technologies for Earth System Modelling
SO GEOSCIENTIFIC MODEL DEVELOPMENT
LA English
DT Article
ID CLIMATE; FRAMEWORK; TOOLKIT
AB This paper presents a review of the software currently used in climate modelling in general and in CMIP5 in particular to couple the numerical codes representing the different components of the Earth System. The coupling technologies presented show common features, such as the ability to communicate and regrid data, and also offer different functions and implementations. Design characteristics of the different approaches are discussed as well as future challenges arising from the increasing complexity of scientific problems and computing platforms.
C1 [Valcke, S.] CERFACS, Sci Univers CERFACS, URA1875, F-31057 Toulouse 01, France.
[Balaji, V.] Princeton Univ, Princeton, NJ 08544 USA.
[Craig, A.; Vertenstein, M.] Natl Ctr Atmospher Res, Boulder, CO 80305 USA.
[DeLuca, C.; O'Kuinghttons, R.] NOAA, CIRES, Boulder, CO USA.
[Dunlap, R.] Georgia Tech, Coll Comp, Atlanta, GA USA.
[Ford, R. W.] STFC Daresbury Lab, Warrington WA4 4AD, Cheshire, England.
[Jacob, R.] Argonne Natl Lab, Div Math & Comp Sci, Argonne, IL 60439 USA.
[Larson, J.] Australian Natl Univ, Inst Math Sci, Canberra, ACT 0200, Australia.
[Riley, G. D.] Univ Manchester, Sch Comp Sci, Manchester M13 9PL, Lancs, England.
RP Valcke, S (reprint author), CERFACS, Sci Univers CERFACS, URA1875, 42 Av G Coriolis, F-31057 Toulouse 01, France.
EM valcke@cerfacs.fr
FU EU FP7 IS-ENES project [228203]; CNRS-INSU
FX This paper is based on the outcome of the Workshop on "Coupling
Technologies for Earth System Modelling: Today and Tomorrow" (Valcke and
Dunlap, 2011) organised in CERFACS in 2010. We would like to thank all
participants who took actively part in the discussions and the EU FP7
IS-ENES project (Contract GA No: 228203) for financial support.; The
publication of this article is financed by CNRS-INSU.
NR 26
TC 15
Z9 16
U1 3
U2 18
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1991-959X
J9 GEOSCI MODEL DEV
JI Geosci. Model Dev.
PY 2012
VL 5
IS 6
BP 1589
EP 1596
DI 10.5194/gmd-5-1589-2012
PG 8
WC Geosciences, Multidisciplinary
SC Geology
GA 059HW
UT WOS:000312696000016
ER
PT S
AU Zimmer, P
McGraw, JT
Zirzow, DC
Cramer, C
Lykke, K
Woodward, JT
AF Zimmer, Peter
McGraw, John T.
Zirzow, Daniel C.
Cramer, Claire
Lykke, Keith
Woodward, John T.
BE Stepp, LM
Gilmozzi, R
Hall, HJ
TI New Instruments to Calibrate Atmospheric Transmission
SO GROUND-BASED AND AIRBORNE TELESCOPES IV
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Ground-Based and Airborne Telescopes IV
CY JUL 01-06, 2012
CL Amsterdam, NETHERLANDS
SP SPIE
DE Photometry; standard stars; atmospheric transmission; lidar; calibration
ID SPECTRAL IRRADIANCE; ABSOLUTE FLUX; VEGA; SPECTROPHOTOMETRY; PHOTOMETRY;
ACCURACY
AB Changing atmospheric transmission accounts for the largest systematic errors limiting photometric measurement precision and accuracy for ground-based telescopes. While considerable resources have been devoted to correcting the effects of the atmosphere on image resolution, the effects on precision photometry have largely been ignored. To correct for the transmission of the atmosphere requires direct measurements of the wavelength-dependent transmission in the same direction and time that the supported photometric telescope is acquiring its data.
We describe a multi-wavelength lidar, the Facility Lidar for Astronomical Measurement of Extinction (FLAME) that observes the stable upper stratosphere, and the Astronomical Extinction Spectrophotometer (AESoP), a spectrophotometer that creates and maintains NIST absolute standard stars. The combination of these two instruments enables high photometric precision of both the stellar spectra and atmospheric transmission. The throughput of both FLAME and AESoP are calibrated to NIST radiometric standards.
This inexpensive and replicable instrument suite provides the lidar-determined monochromatic transmission of Earth's atmosphere at visible and near-infrared wavelengths to better than 0.25% per airmass and the wavelength-dependent transparency to better than 1% uncertainty per minute. These atmospheric data are merged to create a metadata stream that allows throughput corrections from data acquired at the time of the scientific observations to be applied to broadband and spectrophotometric scientific data. This new technique replaces the classical use of nightly mean atmospheric extinction coefficients, which invoke a stationary and plane-parallel atmosphere and ultimately limit ground-based all-sky photometry to 1% - 2% precision.
C1 [Zimmer, Peter; McGraw, John T.; Zirzow, Daniel C.] Univ New Mexico, MSC 07-4220,1 Univ New Mexico, Albuquerque, NM 87131 USA.
[Cramer, Claire; Lykke, Keith; Woodward, John T.] Natl Inst Stand & Technol, Gaithersburg, MD 20899 USA.
RP Zimmer, P (reprint author), Univ New Mexico, MSC 07-4220,1 Univ New Mexico, Albuquerque, NM 87131 USA.
EM zimm@as.unm.edu
FU NIST [60NANB9D9121]; NSF [AST- 1009878]
FX This research is supported by NIST Award 60NANB9D9121 and NSF Grant AST-
1009878.
NR 22
TC 0
Z9 0
U1 0
U2 0
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-9145-9
J9 PROC SPIE
PY 2012
VL 8444
AR 84441L
DI 10.1117/12.926609
PG 12
WC Astronomy & Astrophysics; Optics
SC Astronomy & Astrophysics; Optics
GA BDA16
UT WOS:000312276100053
ER
PT S
AU Cerutti, B
Werner, GR
Uzdensky, DA
Begelman, MC
AF Cerutti, B.
Werner, G. R.
Uzdensky, D. A.
Begelman, M. C.
BE Aharonian, FA
Hofmann, W
Rieger, FM
TI Rapid High-Energy Emission Variability in Relativistic Pair Plasma
Reconnection
SO HIGH ENERGY GAMMA-RAY ASTRONOMY
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 5th International Meeting on High Energy Gamma-Ray Astronomy
CY JUL 09-13, 2012
CL Heidelberg, GERMANY
SP Max-Planck-Inst Nucl Phys (MPIK), Springer Verlag, ISEG, W-IE-NE-R GmbH
DE acceleration of particles; galaxies: active; Crab Nebula; magnetic
reconnection; radiation mechanisms: non-thermal
ID GAMMA-RAY FLARES; CRAB-NEBULA; ACCELERATION; WIND
AB We report on the first study of energetic particles and radiation angular distributions generated in relativistic collisionless pair plasma reconnection, using 2.5-dimensional particle-in-cell simulations. We have discovered that the energetic particles are focused within a small solid angle, and bunched into compact regions inside magnetic islands. In addition, we find that the synchrotron radiation emitted by these particles, as seen by an external observer, is tightly beamed and variable on time scales much shorter than the light-crossing time of the system. This energy dependent "kinetic beaming" differs fundamentally from the achromatic Doppler beaming usually ascribed to relativistic jets. Our findings can account for the puzzling discoveries of bright, short flares seen in high-energy gamma rays, especially from the Crab Nebula and from blazars.
C1 [Cerutti, B.; Werner, G. R.; Uzdensky, D. A.] Univ Colorado, Dept Phys, Ctr Integrated Plasma Studies, UCB 390, Boulder, CO 80309 USA.
[Begelman, M. C.] Univ Colorado, Natl Inst Stand & Technol, JILA, UCB 440, Boulder, CO 80309 USA.
[Begelman, M. C.] Univ Colorado, Dept Astrophys & Planetary Sci, UCB 391, Boulder, CO 80309 USA.
RP Cerutti, B (reprint author), Univ Colorado, Dept Phys, Ctr Integrated Plasma Studies, UCB 390, Boulder, CO 80309 USA.
OI Cerutti, Benoit/0000-0001-6295-596X
FU National Science Foundation; NSF [PHY-0903851, AST-0907872]; NASA
[NNX09AG02G]
FX This research was supported by an allocation of advanced computing
resources provided by the National Science Foundation, by NSF grant
PHY-0903851, NSF grant AST-0907872 and NASA Astrophysics Theory Program
grant NNX09AG02G. Numerical simulations were performed with the VORPAL
framework on the local CIPS computer cluster Verus and on Kraken at the
National Institute for Computational Sciences ( www. nics. tennessee.
edu/). We acknowledge the contributors to VORPAL: www. txcorp. com/
products/ VORPAL/ user_ documentation/ 5.2_ docs/ release_ install/
README. html.
NR 10
TC 0
Z9 0
U1 0
U2 0
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-1123-4
J9 AIP CONF PROC
PY 2012
VL 1505
BP 631
EP 634
DI 10.1063/1.4772339
PG 4
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA BDB83
UT WOS:000312503500126
ER
PT S
AU King, SW
Antonelli, GA
Stan, G
Cook, RF
Sooryakumar, R
AF King, Sean W.
Antonelli, George A.
Stan, Gheorghe
Cook, Robert F.
Sooryakumar, R.
BE Postek, MT
Coleman, VA
Orji, NG
TI Advances in Metrology for the Determination of Young's Modulus for low-k
Dielectric Thin Films
SO INSTRUMENTATION, METROLOGY, AND STANDARDS FOR NANOMANUFACTURING, OPTICS,
AND SEMICONDUCTORS VI
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Instrumentation, Metrology, and Standards for
Nanomanufacturing, Optics, and Semiconductors VI
CY AUG 13-14, 2012
CL San Diego, CA
SP SPIE
DE Young's Modulus; low-k dielectric; Brillouin Light Scattering; AFM
ID ENHANCED CHEMICAL-VAPOR; MECHANICAL-PROPERTIES; BRILLOUIN-SCATTERING;
FRACTURE-TOUGHNESS; INFRARED-SPECTROSCOPY; CONSTANT MATERIALS; ELASTIC
PROPERTIES; LIGHT-SCATTERING; TECHNOLOGY; MICROSCOPY
AB As the semiconductor nano-electronics industry progresses toward incorporating increasingly lower dielectric constant materials as the inter layer dielectric (ILD) in Cu interconnect structures, thermo-mechanical reliability is becoming an increasing concern due to the inherent fragility of these materials. Therefore, the need for metrologies to assess the mechanical properties and elastic constants of low-k dielectric materials is great. Unfortunately, traditional techniques such as nano-indentation are being increasingly challenged as target low-k ILD thicknesses decrease below 100 nm for sub 16 nm technologies. In this light, we demonstrate the applicability of two new techniques, Brillouin Light Scattering and Contact Resonance Atomic Force Microscopy, for the determination of Young's modulus for low-k dielectric thin films. We show that these techniques yield values that are in agreement with standard nano-indentation measurements and are capable at film thickness on the order of 100 nm or less.
C1 [King, Sean W.; Antonelli, George A.] Intel Corp, Log Technol Dev, 5200 NE Elam Young Pkwy, Hillsboro, OR 97124 USA.
[Stan, Gheorghe; Cook, Robert F.] NIST, Div Ceram, Gaithersburg, MD 20899 USA.
[Stan, Gheorghe] Univ Maryland, Dept Mech Engn, College Pk, MD 20742 USA.
[Sooryakumar, R.] Ohio State Univ, Dept Phys, Columbus, OH 43210 USA.
RP King, SW (reprint author), Intel Corp, Log Technol Dev, 5200 NE Elam Young Pkwy, Hillsboro, OR 97124 USA.
EM sean.king@intel.com
FU Institute for Materials Research at The Ohio State University;
Semiconductor Research Corporation (SRC) [2012-IN-2296]
FX The authors would like to acknowledge support from the Institute for
Materials Research at The Ohio State University and the Semiconductor
Research Corporation (SRC) under contract 2012-IN-2296.
NR 52
TC 1
Z9 1
U1 0
U2 5
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-9183-1
J9 PROC SPIE
PY 2012
VL 8466
AR 84660A
DI 10.1117/12.930482
PG 9
WC Nanoscience & Nanotechnology; Instruments & Instrumentation; Optics
SC Science & Technology - Other Topics; Instruments & Instrumentation;
Optics
GA BDE68
UT WOS:000312962300009
ER
PT S
AU Qin, J
Zhou, H
Barnes, BM
Goasmat, F
Dixson, R
Silver, RM
AF Qin, Jing
Zhou, Hui
Barnes, Bryan M.
Goasmat, Francois
Dixson, Ronald
Silver, Richard M.
BE Postek, MT
Coleman, VA
Orji, NG
TI Multiple-order Imaging for Optical Critical Dimension Metrology using
Microscope Characterization
SO INSTRUMENTATION, METROLOGY, AND STANDARDS FOR NANOMANUFACTURING, OPTICS,
AND SEMICONDUCTORS VI
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Instrumentation, Metrology, and Standards for
Nanomanufacturing, Optics, and Semiconductors VI
CY AUG 13-14, 2012
CL San Diego, CA
SP SPIE
DE optical metrology; electromagnetic simulation; frequency domain tool
normalization; multiple frequency scattering; evaluate sensitivities and
uncertainties; phase sensitive measurements
AB There has been much recent work in developing advanced optical metrology applications that use imaging optics for optical critical dimension (OCD) measurements, defect detection, and for potential use with in-die metrology applications. We have previously reported quantitative measurements for sub-50 nm CD dense arrays which scatter only the 0th-order specular diffraction component using angle-resolved scatterfield microscopy. Through angle-resolved and focus-resolved imaging, we now measure OCD targets with three-dimensional scattered fields that contain multiple Fourier frequencies. Experimental sensitivity to nanometer scale linewidth changes is presented, supported by simulation studies. A new, more advanced approach to tool normalization is coupled with rigorous electromagnetic simulations and library based regression fitting that potentially enables OCD measurements with sub-nanometer uncertainties for targets that scatter multiple Fourier frequencies.
C1 [Qin, Jing; Zhou, Hui; Barnes, Bryan M.; Goasmat, Francois; Dixson, Ronald; Silver, Richard M.] NIST, Semicond & Dimens Metrol Div, Gaithersburg, MD 20899 USA.
RP Qin, J (reprint author), NIST, Semicond & Dimens Metrol Div, 100 Bur Dr,MS 8212, Gaithersburg, MD 20899 USA.
EM jing.qin@nist.gov
NR 12
TC 0
Z9 0
U1 0
U2 3
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-9183-1
J9 PROC SPIE
PY 2012
VL 8466
AR 84660G
DI 10.1117/12.946120
PG 12
WC Nanoscience & Nanotechnology; Instruments & Instrumentation; Optics
SC Science & Technology - Other Topics; Instruments & Instrumentation;
Optics
GA BDE68
UT WOS:000312962300013
ER
PT J
AU Stewart, JS
Hazen, EL
Foley, DG
Bograd, SJ
Gilly, WF
AF Stewart, J. S.
Hazen, E. L.
Foley, D. G.
Bograd, S. J.
Gilly, W. F.
TI Marine predator migration during range expansion: Humboldt squid
Dosidicus gigas in the northern California Current System
SO MARINE ECOLOGY PROGRESS SERIES
LA English
DT Article
DE California Current System; Jumbo squid; Range expansion; Satellite
tagging; Swimming velocity
ID HAKE MERLUCCIUS-PRODUCTUS; STATE-SPACE MODELS; GULF-OF-CALIFORNIA; COD
GADUS-MORHUA; JUMBO SQUID; CLIMATE-CHANGE; ANIMAL MOVEMENT; IMPROVING
LIGHT; GEOLOCATION; OCEAN
AB Humboldt squid Dosidicus gigas have undergone a major range expansion in the northern California Current System (CCS) during the last decade. These squid are thought to migrate annually from Mexican waters into the CCS where they prey on many species, including several that support lucrative fisheries; however, swimming capabilities and features of long-distance horizontal migrations are not well understood. In the present study, adult Humboldt squid were tagged off central California with pop-up archival transmitting (PAT) tags (n = 5). All squid ex hibited diel vertical migrations and swam south or offshore (west) during tag deployment (2.7 to 17.6 d). One squid swam south at least 34 km d(-1) for >17 d and crossed into Mexican waters, which is the highest sustained velocity and the longest horizontal migration observed thus far for Humboldt squid. Results from a simple model to estimate the daily locations and velocities of each squid throughout the deployments suggest an average velocity of similar to 37 km d(-1) and a maximum of similar to 50 km d(-1). Additionally, the model suggests that one squid made a bidirectional movement (first north and then returning south) that was not evident from deployment and pop-up positions alone. This study provides insight into Humboldt squid migratory capabilities that are relevant to seasonal migrations and episodic range expansions, both of which are crucial to future inter actions of this species with ecosystems and fisheries.
C1 [Stewart, J. S.; Gilly, W. F.] Stanford Univ, Hopkins Marine Stn, Pacific Grove, CA 93950 USA.
NOAA, NMFS SW Fisheries Sci Ctr, Environm Res Div, Pacific Grove, CA 93950 USA.
[Hazen, E. L.; Foley, D. G.] Univ Hawaii Manoa, Joint Inst Marine & Atmospher Res, Honolulu, HI 96822 USA.
RP Stewart, JS (reprint author), Stanford Univ, Hopkins Marine Stn, 120 Oceanview Blvd, Pacific Grove, CA 93950 USA.
EM jules32@stanford.edu
RI Hazen, Elliott/G-4149-2014
OI Hazen, Elliott/0000-0002-0412-7178
FU California Department of Fish [SC-009763]; California Sea Grant;
California Ocean Protection Council [R/OPCFISH-06]; National Science
Foundation [OCE 0850839]
FX We thank our colleagues who helped with tagging and recovery operations:
J. Field, K. Baltz, A. Booth, I. Wilson, and M. Paull. We also thank A.
Booth, R. deLemos and R. Mendelssohn for programming help and D. Staaf,
L. Zeidberg, P. Daniel, H. Bailey, S. Jorgensen and 3 anonymous
reviewers for technical support and comments on the manuscript. The
Monterey Bay National Marine Sanctuary allowed use of several research
vessels and the captains and crews provided outstanding operational
support. Pathfinder SST was provided courtesy of NOAA's National
Oceanographic Data Center and the University of Miami. Geostationary SST
data were provided courtesy of NOAA NESDIS | OSDPD. MODIS SST data were
provided courtesy of NASA vertical bar GSFC vertical bar Ocean Biology
Products Group. AMSR-E SST data were provided courtesy of Remote Sensing
Systems, Inc. (Santa Rosa, CA). This work was conducted under the
California Department of Fish and Game permit SC-009763 to J. S. S. and
supported by grants from California Sea Grant and California Ocean
Protection Council (R/OPCFISH-06) and the National Science Foundation
(OCE 0850839).
NR 63
TC 10
Z9 10
U1 9
U2 53
PU INTER-RESEARCH
PI OLDENDORF LUHE
PA NORDBUNTE 23, D-21385 OLDENDORF LUHE, GERMANY
SN 0171-8630
J9 MAR ECOL PROG SER
JI Mar. Ecol.-Prog. Ser.
PY 2012
VL 471
BP 135
EP 150
DI 10.3354/meps10022
PG 16
WC Ecology; Marine & Freshwater Biology; Oceanography
SC Environmental Sciences & Ecology; Marine & Freshwater Biology;
Oceanography
GA 060MP
UT WOS:000312782700012
ER
PT J
AU Skinner, JP
Burkanov, VN
Andrews, RD
AF Skinner, John P.
Burkanov, Vladimir N.
Andrews, Russel D.
TI Influence of environment, morphology, and instrument size on lactating
northern fur seal Callorhinus ursinus foraging behavior on the Lovushki
Islands, Russia
SO MARINE ECOLOGY PROGRESS SERIES
LA English
DT Article
DE Pinniped; Diving behavior; Device effects; Lunar; Biotelemetry; Tags
ID LIONS EUMETOPIAS-JUBATUS; AEROBIC DIVE LIMIT; DIVING BEHAVIOR;
ARCTOCEPHALUS-GAZELLA; ATTENDANCE BEHAVIOR; PRIBILOF ISLANDS; TIME;
ENERGETICS; LOCATIONS; RESPONSES
AB Food limitation may be one of the causes of declines in northern fur seal populations on the Pribilof Islands. This hypothesis could be tested by comparing foraging behavior from decreasing Pribilof fur seal populations and an increasing population, such as on the Lovushki Islands, Russia, but factors other than prey availability that differ between sites may also influence behavior. Therefore, we evaluated such factors, including lunar cycle, weather, seal body size, and size of recording instruments, by studying 41 lactating northern fur seals on Lovushki Island over 4 summer breeding seasons using instrument packages of various sizes. With greater moonlight, seals increased foraging trip duration, dive depth, dive duration, and time spent on the bottom of dives but decreased descent rate and diving bout duration. Larger females made shorter shore visits, spent a greater proportion of time at sea diving, and had longer dive bouts than smaller females. Tags with larger frontal surface areas and higher drag caused seals to dive longer and to descend and ascend faster during dives but did not affect foraging trip durations or mass change rates. Seals, therefore, appeared capable of compensating for instrument effects on the scale of individual dives. Although lactating seals from Lovushki Island appeared to spend less foraging effort than seals from the Pribilofs, future studies should control for methodological factors and local environmental conditions before concluding whether food limitation could explain differences in population trajectories.
C1 [Skinner, John P.; Andrews, Russel D.] Alaska SeaLife Ctr, Seward, AK 99664 USA.
[Burkanov, Vladimir N.] Natl Marine Mammal Lab, Seattle, WA 98115 USA.
[Burkanov, Vladimir N.] Russian Acad Sci, Pacific Inst Geog, Kamchatka Branch, Petropavlovsk Kamchatski 683000, Russia.
[Andrews, Russel D.] Univ Alaska Fairbanks, Sch Fisheries & Ocean Sci, Fairbanks, AK 99775 USA.
RP Skinner, JP (reprint author), Alaska SeaLife Ctr, Seward, AK 99664 USA.
EM johns@alaskasealife.org
FU National Oceanic and Atmospheric Administration; National Marine Mammal
Laboratory; North Pacific Wildlife Consulting
FX We thank K. Abernathy, D. Webb, V. Aderholt, A. V Altukhov, R. V.
Belobrov, V. A. Burkanova, N. N. Kutrukhin, D. Calkins, D. Holley, E. G.
Mamaev, Y. Mitani, S. N. Norberg, D. S. Pasenyuk, P. A. Permyakov, S. Y.
Purtov, O. V. Savenko, S. N. Sergeev, T. S. Shulezhko, A. A. Sychenko,
A. V. Tret'yakov, and J. N. Waite. Funding was provided by the National
Oceanic and Atmospheric Administration via grants to the Alaska SeaLife
Center and the National Marine Mammal Laboratory, with additional
funding and logistical support from North Pacific Wildlife Consulting.
This work was authorized by the Alaska SeaLife Center Institutional
Animal Care and Use Committee and conducted under permits from the
following Russian permitting agencies: the Sakhalin Department of the
Federal Fisheries Agency of Russia (Sakhalinrybvod), the Federal
Veterinary and Agricultural Control Service (Rosselkhoznadzor, Sakhalin
Region), and the Sakhalin-Kuril Territorial Department of the Federal
Committee of Fisheries of Russia (Goskomrybolovstvo).
NR 54
TC 3
Z9 3
U1 2
U2 16
PU INTER-RESEARCH
PI OLDENDORF LUHE
PA NORDBUNTE 23, D-21385 OLDENDORF LUHE, GERMANY
SN 0171-8630
J9 MAR ECOL PROG SER
JI Mar. Ecol.-Prog. Ser.
PY 2012
VL 471
BP 293
EP 308
DI 10.3354/meps10038
PG 16
WC Ecology; Marine & Freshwater Biology; Oceanography
SC Environmental Sciences & Ecology; Marine & Freshwater Biology;
Oceanography
GA 060MP
UT WOS:000312782700023
ER
PT J
AU Duffield, J
Neher, C
Allen, S
Patterson, D
Gentner, B
AF Duffield, John
Neher, Chris
Allen, Stewart
Patterson, David
Gentner, Brad
TI Modeling the Behavior of Marlin Anglers in the Western Pacific
SO MARINE RESOURCE ECONOMICS
LA English
DT Article; Proceedings Paper
CT North-American-Association-of-Fisheries-Economists (NAAFE) Forum on
Economics of Conflict and Co-Existence in an Increasingly Crowded Ocean
CY MAY 11-13, 2011
CL Honolulu, HI
SP N Amer Assoc Fisheries Economists (NAAFE), Univ Hawaii, Joint Inst Marine & Atmospher Res (JIMAR), Natl Ocean & Atmospher Adm (NOAA), Pacific Isl Fisheries Sci Ctr
DE Marlin; angler behavior; Hawaii; choice-based conjoint analysis; choice
experiment; willingness-to-pay
ID CONJOINT-ANALYSIS
AB This article reports on an application of choice experiment methods to anglers targeting blue marlin and other pelagic species in Hawaii. Data was collected through the Hawaii Marine Recreational Fisheries Statistical Survey in 2006. Based on 480 completed surveys, respondents were dominantly male (94.2%), Asian (51.6%), had relatively high incomes ($79,816), and 59.6% owned boats. Profit orientation included fishing for profit, expense fishing, Holoholo (purely recreational), Kaukau (subsistence fishing), and trophy fishing. Multinomial logit models were estimated and parameters on trip cost, marlin catch, ahi weight, the summer season, and a nonconsumptive attribute, seeing marlin, were all highly significant and of the expected sign. Part-worth willingness to pay (WTP) for catching a blue marlin was estimated at $521 for the charter group and $276 for those on private boat trips. Marginal value per pound for ahi is similar for both groups, $0.96/pound for charter and $0.92 for private boat.
C1 [Duffield, John; Neher, Chris; Patterson, David] Univ Montana, Dept Math Sci, Missoula, MT 59812 USA.
[Allen, Stewart] NOAA, Human Dimens Res Program, Fisheries Pacific Isl Fisheries Sci Ctr, Honolulu, HI 96814 USA.
[Gentner, Brad] Gentner Consulting Grp, Silver Spring, MD 20901 USA.
RP Duffield, J (reprint author), Univ Montana, Dept Math Sci, Missoula, MT 59812 USA.
EM John.Duffield@mso.umt.edu; bioecon@montana.com; Stewart.Allen@noaa.gov;
DAPatterson@mso.umt.edu; brad@gentnergroup.com
NR 37
TC 1
Z9 1
U1 5
U2 12
PU UNIV CHICAGO PRESS
PI CHICAGO
PA 1427 E 60TH ST, CHICAGO, IL 60637-2954 USA
SN 0738-1360
EI 2334-5985
J9 MAR RESOUR ECON
JI Mar. Resour. Econ.
PY 2012
VL 27
IS 4
BP 343
EP 357
PG 15
WC Economics; Environmental Studies; Fisheries
SC Business & Economics; Environmental Sciences & Ecology; Fisheries
GA 064QR
UT WOS:000313091000005
ER
PT S
AU Cramer, CE
Brown, SW
Lykke, KR
Woodward, JT
Bailey, S
Schlegel, DJ
Bolton, AS
Brownstein, J
Doherty, PE
Stubbs, CW
Vaz, A
Szentgyorgyi, A
AF Cramer, Claire E.
Brown, Steven W.
Lykke, Keith R.
Woodward, John T.
Bailey, Stephen
Schlegel, David J.
Bolton, Adam S.
Brownstein, Joel
Doherty, Peter E.
Stubbs, Christopher W.
Vaz, Amali
Szentgyorgyi, Andrew
BE Navarro, R
Cunningham, CR
Prieto, E
TI Tunable Laser Techniques for Improving the Precision of Observational
Astronomy
SO MODERN TECHNOLOGIES IN SPACE-AND GROUND-BASED TELESCOPES AND
INSTRUMENTATION II
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Modern Technologies in Space-and Ground-Based Telescopes
and Instrumentation II
CY JUL 01-06, 2012
CL Amsterdam, NETHERLANDS
SP SPIE
DE tunable lasers; photometry; spectroscopy; calibration; wavelength
calibration; psf characterization; echelle spectrograph; sky subtraction
ID SPECTRAL IRRADIANCE; UNIFORM SOURCES; LIGHT CURVES; NIST; FACILITY
AB Improving the precision of observational astronomy requires not only new telescopes and instrumentation, but also advances in observing protocols, calibrations and data analysis. The Laser Applications Group at the National Institute of Standards and Technology in Gaithersburg, Maryland has been applying advances in detector metrology and tunable laser calibrations to problems in astronomy since 2007. Using similar measurement techniques, we have addressed a number of seemingly disparate issues: precision flux calibration for broad-band imaging, precision wavelength calibration for high-resolution spectroscopy, and precision PSF mapping for fiber spectrographs of any resolution. In each case, we rely on robust, commercially-available laboratory technology that is readily adapted to use at an observatory. In this paper, we give an overview of these techniques.
C1 [Cramer, Claire E.; Brown, Steven W.; Lykke, Keith R.; Woodward, John T.] NIST, Gaithersburg, MD 20899 USA.
[Bailey, Stephen; Schlegel, David J.] Lawrence Berkeley Lab, Berkeley, CA USA.
[Bolton, Adam S.; Brownstein, Joel] Univ Utah, Dept Phys & Astron, Salt Lake City, UT USA.
[Doherty, Peter E.; Stubbs, Christopher W.; Vaz, Amali] Harvard Univ, Dept Phys, Cambridge, MA USA.
[Szentgyorgyi, Andrew] Harvard Smithsonian Ctr Astrophys, Cambridge, MA USA.
RP Cramer, CE (reprint author), NIST, Gaithersburg, MD 20899 USA.
EM claire.cramer@nist.gov
NR 25
TC 0
Z9 0
U1 0
U2 1
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-9151-0
J9 PROC SPIE
PY 2012
VL 8450
AR 84500S
DI 10.1117/12.925198
PG 8
WC Astronomy & Astrophysics; Instruments & Instrumentation; Optics
SC Astronomy & Astrophysics; Instruments & Instrumentation; Optics
GA BDB07
UT WOS:000312415800026
ER
PT S
AU McGraw, JT
Zimmer, PC
Zirzow, DC
Woodward, JT
Lykke, KR
Cramer, CE
Deustua, SE
Hines, DC
AF McGraw, John T.
Zimmer, Peter C.
Zirzow, Daniel C.
Woodward, John T.
Lykke, Keith R.
Cramer, Claire E.
Deustua, Susana E.
Hines, Dean C.
BE Navarro, R
Cunningham, CR
Prieto, E
TI Near-field calibration of an objective spectrophotometer to NIST
radiometric standards for the creation and maintenance of standard stars
for ground- and space-based applications
SO MODERN TECHNOLOGIES IN SPACE-AND GROUND-BASED TELESCOPES AND
INSTRUMENTATION II
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Modern Technologies in Space-and Ground-Based Telescopes
and Instrumentation II
CY JUL 01-06, 2012
CL Amsterdam, NETHERLANDS
SP SPIE
DE atmospheric transmission; astronomical extinction; standard stars;
lidar; spectrophotometry; radiometry; stellar calibration; absolute
calibration
ID VEGA; FLUX
AB NIST-calibrated detectors will be used by the ground-based 100mm diameter Astronomical Extinction Spectrophotometer (AESoP) to calibrate the spectral energy distributions of bright stars to sub-1% per mm spectral resolution element accuracy. AESoP will produce about a hundred spectroradiometrically calibrated stars for use by ground- and space-based sensors. This will require accurate and near-continuous NIST calibration of AESoP, an equatorially mounted objective spectrophotometer operating over the wavelength range 350nm - 1050nm using a CCD detector.
To provide continuous NIST calibration of AESoP in the field a near-identical, removable 100mm diameter transfer standard telescope (CAL) is mounted physically parallel to AESoP. The CAL transfer standard is calibrated by NIST end-to-end, wavelength-by-wavelength at mm spectral resolution. In the field, CAL is used in a near-field configuration to calibrate AESoP. Between AESoP science observations, AESoP and CAL simultaneously observe clear sub-apertures of a 400mm diameter calibration collimator. Monochromatic light measured simultaneously by AESoP and CAL is dispersed by the objective grating onto the AESoP pixels measuring the same wavelength of starlight, thus calibrating both wavelength and instrumental throughput, and simultaneously onto a unique low-noise CAL detector providing the required throughput measurement. System sensitivity variations are measured by vertically translating the AESoP/CAL pair so that CAL can observe the AESoP sub-aperture.
Details of this system fundamental to the calibration of the spectral energy distributions of stars are discussed and its operation is described. System performance will be demonstrated, and a plan of action to extend these techniques firstly into the near infrared, then to fainter stars will be described.
C1 [McGraw, John T.; Zimmer, Peter C.; Zirzow, Daniel C.; Hines, Dean C.] Univ New Mexico, Dept Phys & Astron, Albuquerque, NM 87131 USA.
[Woodward, John T.; Lykke, Keith R.; Cramer, Claire E.] Natl Inst Stand & Technol, Phys Lab, Gaithersburg, MD 20899 USA.
[Deustua, Susana E.; Hines, Dean C.] Space Telescope Sci Inst, Baltimore, MD 21218 USA.
RP McGraw, JT (reprint author), Univ New Mexico, Dept Phys & Astron, Albuquerque, NM 87131 USA.
EM jmcgraw@as.umn.edu
FU NIST [60NANB9D9121]; NSF [AST- 1009878]
FX Research and development of this project at UNM is funded by NIST Award
60NANB9D9121 and NSF Grant AST- 1009878.
NR 14
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Z9 3
U1 1
U2 1
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-9151-0
J9 PROC SPIE
PY 2012
VL 8450
AR 84501S
DI 10.1117/12.927296
PG 11
WC Astronomy & Astrophysics; Instruments & Instrumentation; Optics
SC Astronomy & Astrophysics; Instruments & Instrumentation; Optics
GA BDB07
UT WOS:000312415800058
ER
PT S
AU Osterman, S
Ycas, GG
Diddams, SA
Quinlan, F
Mahadevan, S
Ramsey, L
Bender, CF
Terrien, R
Botzer, B
Sigurddson, S
Redman, SL
AF Osterman, Steve
Ycas, Gabriel G.
Diddams, Scott A.
Quinlan, Franklyn
Mahadevan, Suvrath
Ramsey, Lawrence
Bender, Chad F.
Terrien, Ryan
Botzer, Brandon
Sigurddson, Steinn
Redman, Stephen L.
BE Navarro, R
Cunningham, CR
Prieto, E
TI A near infrared frequency comb for Y plus J band astronomical
spectroscopy
SO MODERN TECHNOLOGIES IN SPACE-AND GROUND-BASED TELESCOPES AND
INSTRUMENTATION II
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Modern Technologies in Space-and Ground-Based Telescopes
and Instrumentation II
CY JUL 01-06, 2012
CL Amsterdam, NETHERLANDS
SP SPIE
DE Laser frequency comb; near infrared; radial velocity; spectroscopy;
instrumentation; modal noise
ID RADIAL-VELOCITY MEASUREMENTS; HOLLOW-CATHODE LAMPS; OPTICAL FREQUENCIES;
NOBEL LECTURE; PRECISION; CALIBRATION; SPECTROGRAPHS; SPECTRUM; NM;
STARS
AB Radial velocity (RV) surveys supported by high precision wavelength references (notably ThAr lamps and 12 cells) have successfully identified hundreds of exoplanets; however, as the search for exoplanets moves to cooler, lower mass stars, the optimum wave band for observation for these objects moves into the near infrared (NIR) and new wavelength standards are required. To address this need we are following up our successful deployment of an H band(1.45-1.7 mu m) laser frequency comb based wavelength reference with a comb working in the Y and J bands (0.98-1.3 mu m). This comb will be optimized for use with a 50,000 resolution NIR spectrograph such as the Penn State Habitable Zone Planet Finder. We present design and performance details of the current Y+J band comb.
C1 [Osterman, Steve] Univ Colorado, CASA, 1255 38th St, Boulder, CO 80305 USA.
[Ycas, Gabriel G.; Diddams, Scott A.; Quinlan, Franklyn] Natl Inst Stand & Technol, Div Time & Frequency, Boulder, CO USA.
[Ramsey, Lawrence; Bender, Chad F.; Terrien, Ryan; Botzer, Brandon; Sigurddson, Steinn; Redman, Stephen L.] Univ Colorado, Dept Phys, Boulder, CO USA.
[Terrien, Ryan; Botzer, Brandon; Sigurddson, Steinn; Redman, Stephen L.] Penn State Univ, Dept Astron, Pennsylvania, PA USA.
RP Osterman, S (reprint author), Univ Colorado, CASA, 1255 38th St, Boulder, CO 80305 USA.
EM steven.osterman@colorado.edu
RI Bender, Chad/D-4719-2012; Diddams, Scott/L-2819-2013
FU NIST; NASA [NNX09AB34G]; NSF [AST- 0906034, AST- 1006676, AST- 0907732,
AST- 1126413]; Center for Exoplanets and Habitable Worlds; Pennsylvania
State University; Eberly College of Science; Pennsylvania Space Grant
Consortium
FX Research presented in this paper was supported by NIST, from NASA
through the NAI and Origins grant NNX09AB34G, and from the NSF grants
AST- 0906034, AST- 1006676, AST- 0907732, and AST- 1126413. This work
was partially supported by funding from the Center for Exoplanets and
Habitable Worlds, which in turn is supported by the Pennsylvania State
University, the Eberly College of Science, and the Pennsylvania Space
Grant Consortium.
NR 34
TC 0
Z9 0
U1 0
U2 3
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-9151-0
J9 PROC SPIE
PY 2012
VL 8450
AR 84501I
DI 10.1117/12.926868
PG 7
WC Astronomy & Astrophysics; Instruments & Instrumentation; Optics
SC Astronomy & Astrophysics; Instruments & Instrumentation; Optics
GA BDB07
UT WOS:000312415800050
ER
PT S
AU Williams, EH
Davydov, AV
Oleshko, VP
Lin, NJ
Steffens, KL
Manocchi, AK
Krylyuk, S
Rao, MV
Schreifels, JA
AF Williams, Elissa H.
Davydov, Albert V.
Oleshko, Vladimir P.
Lin, Nancy J.
Steffens, Kristen L.
Manocchi, Amy K.
Krylyuk, Sergiy
Rao, Mulpuri V.
Schreifels, John A.
BE Kobayashi, NP
Talin, AA
Islam, MS
TI Biofunctionalization of Si nanowires using a solution based technique
SO NANOEPITAXY: MATERIALS AND DEVICES IV
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Nanoepitaxy - Materials and Devices IV
CY AUG 15-16, 2012
CL San Diego, CA
SP SPIE
DE Silicon; nanowires; functionalization; protein; biosensor
ID LABEL-FREE; IMMOBILIZATION; STREPTAVIDIN; MONOLAYERS; SURFACE; GROWTH;
OXIDE
AB Here we present a solution based functionalization technique for streptavidin (SA) protein conjugation to silicon nanowires (Si NWs). Si NWs, with a diameter of 110 nm to 130 nm and a length of 5 mu m to 10 mu m, were functionalized with 3-aminopropyltriethoxysilane (APTES) followed by biotin for the selective attachment of SA. High-resolution transmission electron microscopy (HRTEM) and atomic force microscopy (AFM) showed that the Si NWs were conformally coated with 20 nm to 30 nm thick APTES, biotin, and SA layers upon functionalization. Successful attachment of each bio/organic layer was confirmed by X-ray photoelectron spectroscopy (XPS) and fluorescence microscopy. Fluorescence microscopy also demonstrated that there was an undesirable non-specific binding of the SA protein as well as a control protein, bovine serum albumin (BSA), to the APTES-coated Si NWs. However, inhibition of BSA binding and enhancement of SA binding were achieved following the biotinylation step. The biofunctionalized Si NWs show potential as label-free biosensing platforms for the specific and selective detection of biomolecules.
C1 [Williams, Elissa H.; Davydov, Albert V.; Oleshko, Vladimir P.; Lin, Nancy J.; Steffens, Kristen L.; Krylyuk, Sergiy] NIST, Mat Measurement Lab, 100 Bur Dr, Gaithersburg, MD 20899 USA.
[Williams, Elissa H.; Schreifels, John A.] George Mason Univ, Dept Chem & Biochem, Fairfax, VA 22030 USA.
[Williams, Elissa H.; Rao, Mulpuri V.] George Mason Univ, Dept Elect & Comp Engn, Fairfax, VA 22030 USA.
[Manocchi, Amy K.] Army Res Lab, Sensors & Elect Devices Directorate, Adelphi, MD 20783 USA.
[Krylyuk, Sergiy] Univ Maryland, EIREAP, College Pk, MD 20742 USA.
RP Williams, EH (reprint author), NIST, Mat Measurement Lab, 100 Bur Dr, Gaithersburg, MD 20899 USA.
EM ehwill@nist.gov
RI Davydov, Albert/F-7773-2010
OI Davydov, Albert/0000-0003-4512-2311
FU National Science Foundation [ECCS- 0901712]; NIST [SB134110SE0579,
SB134111SE0814]; U. S. Army Research Laboratory Postdoctoral Fellowship
Program administered by Oak Ridge Associated Universities
FX The authors are appreciative of the helpful discussions with Dr. Marlon
L. Walker ( Material Measurement Laboratory, NIST) and Dr. Rebecca A.
Zangmeister ( Material Measurement Laboratory, NIST) as well as the
assistance of Dr. Anthony G. Birdwell ( Sensors and Electronic Devices
Directorate, Army Research Laboratory). EHW, MVR, and JAS gratefully
acknowledge the financial support of the National Science Foundation (
Grant # ECCS- 0901712). VPO gratefully acknowledges the financial
support from NIST under contracts SB134110SE0579 and SB134111SE0814. AKM
was supported by a contractual appointment to the U. S. Army Research
Laboratory Postdoctoral Fellowship Program administered by Oak Ridge
Associated Universities.
NR 17
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U1 0
U2 15
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-9184-8
J9 PROC SPIE
PY 2012
VL 8467
AR 846702
DI 10.1117/12.970460
PG 8
WC Nanoscience & Nanotechnology; Optics
SC Science & Technology - Other Topics; Optics
GA BDE69
UT WOS:000312962700001
ER
PT J
AU Meinen, CS
Piola, AR
Perez, RC
Garzoli, SL
AF Meinen, C. S.
Piola, A. R.
Perez, R. C.
Garzoli, S. L.
TI Deep Western Boundary Current transport variability in the South
Atlantic: preliminary results from a pilot array at 34.5 degrees S
SO OCEAN SCIENCE
LA English
DT Article
ID MERIDIONAL HEAT-TRANSPORT; BRAZIL-MALVINAS CONFLUENCE; INVERTED ECHO
SOUNDERS; NORTH-ATLANTIC; GEOSTROPHIC VELOCITY; GULF-STREAM;
CIRCULATION; OCEAN; WATER; ALTIMETRY
AB The first direct estimates of the temporal variability of the absolute transport in the Deep Western Boundary Current (DWBC) at 34.5 degrees S in the South Atlantic Ocean are obtained using just under one year of data from a line of four pressure-equipped inverted echo sounders. Hydrographic sections collected in 2009 and 2010 confirm, based on neutral density, temperature, salinity, and oxygen values, the presence of the DWBC, one of the main deep pathways of the Meridional Overturning Circulation. Both data sets indicate that the DWBC reconstitutes itself after breaking into eddies in the western sub-tropical Atlantic near 8 degrees S. The amplitude and spectral character of the DWBC transport variability are comparable with those observed in the North Atlantic, where longer records exist, with the DWBC at 34.5 degrees S exhibiting a transport standard deviation of 25 Sv and variations of similar to 40 Sv occurring within periods as short as a few days. There is little indication of an annual cycle in the DWBC transports, although the observational records are too short to be definitive. A Monte Carlo-style analysis using 27 yr of model output from the same location as the observations indicates that about 48-60 months of data will be required to fully assess the deep transport variability. The model suggests the presence of an annual cycle in DWBC transport, however its statistical significance with even 27 yr of model output is low, suggesting that seasonal variations in the model are weak.
C1 [Meinen, C. S.; Perez, R. C.; Garzoli, S. L.] NOAA, Atlantic Oceanog & Meteorol Lab, Miami, FL 33149 USA.
[Piola, A. R.] Serv Hidrog Naval, Buenos Aires, DF, Argentina.
[Piola, A. R.] Univ Buenos Aires, UMI IFAECI CONICET CNRS, Buenos Aires, DF, Argentina.
[Perez, R. C.] Univ Miami, Cooperat Inst Marine & Atmospher Studies, Miami, FL USA.
RP Meinen, CS (reprint author), NOAA, Atlantic Oceanog & Meteorol Lab, Miami, FL 33149 USA.
EM christopher.meinen@noaa.gov
RI Perez, Renellys/D-1976-2012; Meinen, Christopher/G-1902-2012; Garzoli,
Silvia/A-3556-2010; Piola, Alberto/O-2280-2013
OI Perez, Renellys/0000-0002-4401-3853; Meinen,
Christopher/0000-0002-8846-6002; Garzoli, Silvia/0000-0003-3553-2253;
Piola, Alberto/0000-0002-5003-8926
FU Inter-American Institute for Global Change Research [CRN2076]; US
National Science Foundation [GEO-0452325]; NOAA Atlantic Oceanographic
and Meteorological Laboratory; NOAA Climate Program Office
FX The authors would like to express their great appreciation to the crews
and officers of the Argentine and Brazilian vessels who have supported
this program to date, on board the Brazilian naval research vessel N. H.
Cruzeiro do Sul and the Argentine research vessel A. R. A. Puerto
Deseado (CONICET). Also, our sincere thanks to the scientific
participants who have collected the PIES/CPIES data during the cruises:
Rigoberto Garcia, Ulises Rivero, Pedro Pena, and Aldo Firpo. And our
thanks to those who have helped coordinate these challenging
international cruise collaborations, especially Ariel Troisi and Raul
Guerrero in Argentina and Edmo Campos in Brazil. The two hydrographic
sections presented herein were collected with support from the Argentine
Servicio de Hidrografia Naval, the University of Buenos Aires, and the
US NOAA. Finally, many thanks to the generous researchers who provided
us with the OFES model output, especially Yoshikazu Sasai at JAMSTEC,
and Ricardo Matano at OSU. Rick Lumpkin, Claudia Schmid and two
anonymous reviewers provided helpful suggestions for improving this
manuscript, and their help is gratefully acknowledged. ARP acknowledges
the support of grant CRN2076 from the Inter-American Institute for
Global Change Research, which is supported by the US National Science
Foundation (GEO-0452325). CSM, RCP and SLG also acknowledge support from
the NOAA Atlantic Oceanographic and Meteorological Laboratory and the
NOAA Climate Program Office.
NR 52
TC 4
Z9 4
U1 0
U2 15
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1812-0784
J9 OCEAN SCI
JI Ocean Sci.
PY 2012
VL 8
IS 6
BP 1041
EP 1054
DI 10.5194/os-8-1041-2012
PG 14
WC Meteorology & Atmospheric Sciences; Oceanography
SC Meteorology & Atmospheric Sciences; Oceanography
GA 059IT
UT WOS:000312698600008
ER
PT S
AU Paik, DH
Perkins, TT
AF Paik, D. Hern
Perkins, Thomas T.
BE Dholakia, K
Spalding, GC
TI Force spectroscopy of DNA: there is still a lot to learn
SO OPTICAL TRAPPING AND OPTICAL MICROMANIPULATION IX
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Optical Trapping and Optical Micromanipulation IX
CY AUG 12-16, 2012
CL San Diego, CA
SP SPIE
DE Force spectroscopy; optical trap; DNA; single molecule; overstretching
transition; DNA intercalation
ID DOUBLE-STRANDED DNA; OPTICAL TWEEZERS; OVERSTRETCHING TRANSITION;
MECHANICAL STABILITY; STRETCHING DNA; MOLECULE; ELASTICITY; DYNAMICS;
TENSION; THERMODYNAMICS
AB Single-molecule studies of the mechanical properties of individual double-stranded DNA have excited interest across many scientific disciplines because of DNA's fundamental role in biology and DNA's remarkable overstretching transition at higher forces. Here, we discuss a recent result on the overstretching transition of DNA and on the dynamics of dye molecules intercalating into DNA under tension. Overstretching DNA is mechanical transition whereby DNA's extension increases by 70% at 65 pN. Notwithstanding more than a decade of experimental and theoretical studies, there remains significant debate on the nature of overstretched DNA. We developed a topologically closed but torsionally unconstrained DNA assay that contains no nicks or free ends. DNA in this assay exhibited the canonical overstretching transition at 65 pN but without hysteresis upon retraction. Controlled introduction of a nick led to hysteresis in the force extension curve. Moreover, the degree of hysteresis increased with the number of nicks. In the second study, we isolated the effects of binding and intercalation of a DNA staining dye, by combining single molecule force spectroscopy with simple buffer exchange. We showed that force-enhanced intercalation can occur from a reservoir of bound dye that was not bis-intercalated, yet remained out of equilibrium with free dye for long periods (>5 min for YOPRO and >2 hr for YOYO). Our work highlights that binding/unbinding and intercalation/de-intercalation are distinct processes that can occur on very different time scales. Taken together, these works highlight ongoing discoveries based on a twenty year old technique, force spectroscopy of single DNA molecules.
C1 [Paik, D. Hern; Perkins, Thomas T.] NIST, JILA, Boulder, CO 80309 USA.
RP Paik, DH (reprint author), NIST, JILA, Boulder, CO 80309 USA.
EM tperkins@jila.colorado.edu
NR 49
TC 0
Z9 0
U1 2
U2 8
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-9175-6
J9 PROC SPIE
PY 2012
VL 8458
AR 845817
DI 10.1117/12.945812
PG 9
WC Optics
SC Optics
GA BDF64
UT WOS:000313034500021
ER
PT S
AU Kuo, PS
Pelc, JS
Slattery, O
Fejer, MM
Tang, X
AF Kuo, Paulina S.
Pelc, Jason S.
Slattery, Oliver
Fejer, Martin M.
Tang, Xiao
BE Meyers, RE
Shih, Y
Deacon, KS
TI Dual-channel, single-photon upconversion detector near 1300 nm
SO QUANTUM COMMUNICATIONS AND QUANTUM IMAGING X
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Quantum Communications and Quantum Imaging X
CY AUG 15-16, 2012
CL San Diego, CA
SP SPIE
DE Quantum detectors; single photon; nonlinear optics; sum frequency
generation
ID QUANTUM KEY DISTRIBUTION; LINBO3 WAVE-GUIDES; DISTRIBUTION-SYSTEM;
LITHIUM-NIOBATE; WAVELENGTH; TRANSDUCTION; EFFICIENCY
AB Upconversion of 1.3-micron photons and detection using silicon avalanche photodiodes (Si APDs) can produce high photon detection efficiencies (PDEs) with low dark count rates. We demonstrate a novel two-channel device based on a phase-modulated, periodically poled LiNbO3 waveguide that mixes 1302-nm signal photons with two pump beams at 1556 and 1571 nm. Both channels showed high PDEs with very low dark counts. Using wavelength-to time-division multiplexing in this dual-channel device, we produced clock rates that exceed the timing-jitter-limited rates of a system based on one Si APD. Higher clock rates are of interest for improved quantum communication systems.
C1 [Kuo, Paulina S.; Slattery, Oliver; Tang, Xiao] NIST, Informat Technol Lab, 100 Bur Dr, Gaithersburg, MD 20899 USA.
[Kuo, Paulina S.] NIST Univ Maryland, Joint Quantum Inst, Bur Dr, Gaithersburg, MD 20899 USA.
[Pelc, Jason S.; Fejer, Martin M.] Stanford Univ, E L Ginzton Lab, Stanford, CA 94305 USA.
RP Kuo, PS (reprint author), NIST, Informat Technol Lab, 100 Bur Dr, Gaithersburg, MD 20899 USA.
EM pkuo@nist.gov
NR 31
TC 1
Z9 1
U1 0
U2 3
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-9235-7
J9 PROC SPIE
PY 2012
VL 8518
AR 85180U
DI 10.1117/12.946250
PG 12
WC Optics; Physics, Applied
SC Optics; Physics
GA BDD78
UT WOS:000312871000019
ER
PT S
AU Slattery, O
Kuo, P
Kim, YS
Ma, LJ
Tang, X
AF Slattery, Oliver
Kuo, Paulina
Kim, Yong-Su
Ma, Lijun
Tang, Xiao
BE Meyers, RE
Shih, Y
Deacon, KS
TI SPDC Correlated Photon Source Filtered for Narrowed Bandwidth using
Volume Bragg Grating
SO QUANTUM COMMUNICATIONS AND QUANTUM IMAGING X
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Quantum Communications and Quantum Imaging X
CY AUG 15-16, 2012
CL San Diego, CA
SP SPIE
DE Correlated photon pair generation; Volume Bragg grating; Up-conversion
detector; up-conversion spectrometer
AB A Volume Bragg Grating (VBG) can be used to efficiently extract a narrow bandwidth, highly collimated beam from an otherwise broad spectrum beam. We use a VBG to extract a narrow bandwidth of signal spectrum from a broadband Spontaneous Parametric Down-Conversion source to optimally match the narrow detection bandwidth of our idler up-conversion detector. Improved coincidence count rates and visibility can be achieved when limiting signal-spectrum detection to the narrow signal bandwidth whose photons are correlated with a narrow idler-spectrum bandwidth that has been selected by the up-conversion detector. We compare coincidence count rate and visibility for when the entire signal spectrum is detected and when the spectrum has been filtered by the VBG. We further relax the collection techniques and show that following the VBG, the coincidence count rate improves with minimal loss in visibility compared to when the entire spectrum is detected. We introduce our initial efforts at using the VBG to further narrow the signal spectrum by placing it inside a multipass cavity. Additionally, we further adapt the single photon level up-conversion spectrometer, previously developed for idler spectrum measurement, to indirectly measure the single photon level signal spectrum. We verify its capability for several different wavelength and linewidth selections.
C1 [Slattery, Oliver; Kuo, Paulina; Kim, Yong-Su; Ma, Lijun; Tang, Xiao] NIST, Informat Technol Lab, Gaithersburg, MD 20899 USA.
RP Slattery, O (reprint author), NIST, Informat Technol Lab, 100 Bur Dr, Gaithersburg, MD 20899 USA.
EM xiao.tang@nist.gov
NR 11
TC 0
Z9 0
U1 1
U2 1
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-9235-7
J9 PROC SPIE
PY 2012
VL 8518
AR 85180Y
DI 10.1117/12.944223
PG 10
WC Optics; Physics, Applied
SC Optics; Physics
GA BDD78
UT WOS:000312871000021
ER
PT S
AU Cygan, A
Lisak, D
Wojtewicz, S
Domyslawska, J
Hodges, JT
Trawinski, RS
Ciurylo, R
AF Cygan, A.
Lisak, D.
Wojtewicz, S.
Domyslawska, J.
Hodges, J. T.
Trawinski, R. S.
Ciurylo, R.
GP IOP
TI Demonstration of the extremely high signal-to-noise ratio and advanced
O-2 B-band line shape analysis in the PDH-locked FS-CRDS experiment
SO XXI INTERNATIONAL CONFERENCE ON SPECTRAL LINE SHAPES (ICSLS 2012)
SE Journal of Physics Conference Series
LA English
DT Proceedings Paper
CT 21st International Conference on Spectral Line Shapes (ICSLS)
CY JUN 03-09, 2012
CL St Petersburg State Univ, St Petersburg, RUSSIA
SP Dynasty Fdn, Russian Fdn Basic Res
HO St Petersburg State Univ
ID SPECTRAL-LINES; SPECTROSCOPY; DOPPLER; AR; PARAMETERS; N-2; CO;
CONSTANTS
AB We demonstrate an extremely high signal-to-noise ratio of 220000 : 1 obtained by the long-term spectra co-adding and averaging in the Pound-Drever-Hall-locked frequency-stabilized cavity ring-down experiment. The connection of this laser spectroscopy technique with the careful line-shape analysis revealed very subtle line-shape asymmetry of the R7 Q8 O-16(2) rovibronic B-band transition probed at pressure 933 Pa. This asymmetry could be ascribed to the speed dependence of the collisional shift, as will be shown. Reduction of the minimum detectable absorption coefficient of 2 x 10(-10) cm(-1) by an order of magnitude, according to the 1/root N dependence, shifted the bottom limit of measured line intensities toward values as low as 1.3 x 10(-30) cm(-1)/(molecule cm(-2)). The demonstrated measurement precision enabled the quantification of systematic line-shape deviations, which were approximately 1 part in 80000 of the peak absorption. The influence of slowly drifting etaloning effects on the accuracy of the line-shape analysis is discussed.
C1 [Cygan, A.; Lisak, D.; Wojtewicz, S.; Domyslawska, J.; Trawinski, R. S.; Ciurylo, R.] Uniwersytet Mikolaja Kopernika, Inst Fizyki, Ul Grudziadzka 5-7, PL-87100 Torun, Poland.
[Hodges, J. T.] Natl Inst Stand & Technol, Gaithersburg, MD 20899 USA.
RP Cygan, A (reprint author), Uniwersytet Mikolaja Kopernika, Inst Fizyki, Ul Grudziadzka 5-7, PL-87100 Torun, Poland.
EM agata@fizyka.umk.pl
RI Cygan, Agata/E-1393-2014; Lisak, Daniel/E-1470-2014; Trawinski, Ryszard
/G-3523-2014; Ciurylo, Roman/G-8680-2014; Domyslawska,
Jolanta/H-7167-2014; Wojtewicz, Szymon/A-5425-2015
FU Polish National Science Centre [DEC- 2011/ 01/ B/ ST2/ 00491];
Foundation for Polish Science TEAM Project-EU European Regional
Development; Polish NCN [N N202 2392 40]
FX The research is part of the program of the National Laboratory FAMO in
Toru ' in, Poland, and is supported by the Polish National Science
Centre, Project No. DEC- 2011/ 01/ B/ ST2/ 00491. The research was also
supported by the Foundation for Polish Science TEAM Project co- financed
by the EU European Regional Development Fund. A. Cygan is supported by
the Polish NCN, Project No. N N202 2392 40.
NR 40
TC 0
Z9 0
U1 0
U2 12
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 1742-6588
J9 J PHYS CONF SER
PY 2012
VL 397
AR 012046
DI 10.1088/1742-6596/397/1/012046
PG 7
WC Physics, Applied; Physics, Multidisciplinary
SC Physics
GA BDC16
UT WOS:000312548700046
ER
PT J
AU Jargon, JA
Williams, DF
Wallis, TM
LeGolvan, DX
Hale, PD
AF Jargon, Jeffrey A.
Williams, Dylan F.
Wallis, T. Mitch
LeGolvan, Denis X.
Hale, Paul D.
GP IEEE
TI Establishing Traceability of an Electronic Calibration Unit Using the
NIST Microwave Uncertainty Framework
SO 2012 79TH ARFTG MICROWAVE MEASUREMENT CONFERENCE (ARFTG)
LA English
DT Proceedings Paper
CT 79th ARFTG Microwave Measurement Conference (ARFTG)
CY JUN 22, 2012
CL Montreal, CANADA
SP IEEE, MTT-S, ARFTG
DE Electronic calibration unit; traceability; uncertainty; vector network
analyzer
ID NETWORK-ANALYZER CALIBRATION
AB We present a method for establishing traceability of a commercial electronic calibration unit for vector network analyzers by characterizing the scattering parameters of its internal states with repeated multiline thru-reflect-line (TRL) calibrations and utilizing the NIST Microwave Uncertainty Framework to propagate uncertainties. With the electronic calibration unit characterized, we use it to calibrate a network analyzer, and characterize a number of verification devices with corresponding uncertainties. We also characterize the same verification devices using one of the previous multiline TRL calibrations, and compare results.
C1 [Jargon, Jeffrey A.; Williams, Dylan F.; Wallis, T. Mitch; LeGolvan, Denis X.; Hale, Paul D.] Natl Inst Stand & Technol, Boulder, CO 80305 USA.
RP Jargon, JA (reprint author), Natl Inst Stand & Technol, 325 Broadway,M-S 815-01, Boulder, CO 80305 USA.
EM jargon@boulder.nist.gov
RI Hale, Paul/B-1737-2013
NR 11
TC 0
Z9 0
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-4673-1230-1
PY 2012
PG 5
WC Engineering, Electrical & Electronic
SC Engineering
GA BDB76
UT WOS:000312499100007
ER
PT S
AU Lipe, TE
Kinard, JR
Tang, YH
Filipski, PS
AF Lipe, Thomas E.
Kinard, Joseph R.
Tang, Yi-hua
Filipski, Piotr S.
GP IEEE
TI An International Intercomparison of Quantum-Based AC Voltage Standards
SO 2012 IEEE INTERNATIONAL INSTRUMENTATION AND MEASUREMENT TECHNOLOGY
CONFERENCE (I2MTC)
SE IEEE Instrumentation and Measurement Technology Conference
LA English
DT Proceedings Paper
CT 29th Annual IEEE International Instrumentation and Measurement
Technology Conference (I2MTC)
CY MAY 13-16, 2012
CL Graz, AUSTRIA
SP IEEE, IEEE Instrumentat & Measurement Soc, IEEE Austria Sect, TU Graz, Virtual Vehicle Competence Ctr, Obuda Univ, European Acad Sci & Arts, Austrian Acad Sci, Int Soc Petr Engineers, Drilling Syst Automat Tech Sect, Arbeitskreis Hochschullehrer Messtechnik e.V. (AHMT), Joanneum Res, Austrian Ctr Competence Mechatron (ACCM), Platform Artemis Austria
DE AC-DC Difference; Interlaboratory Comparison; Josephson Voltage
Standard; Voltage Measurement
ID MULTIJUNCTION THERMAL CONVERTERS; DC TRANSFER-STANDARD
AB We report the results of a comparison of quantum-based AC Josephson Voltage Standards (ACJVS) between the National Institute of Standards and Technology (NIST), and the National Research Council, Canada (NRC), using a thermal transfer standard as the traveling standard. Excellent agreement was obtained between NIST and NRC from measurements on the lowest voltage ranges of the thermal transfer standard, indicating that the two ACJVS systems are consistent. This work confirms that the use of the ACJVS as a reference for ac voltage measurements is viable, and these systems can form the basis for ac voltage metrology in the future. This intercomparison was performed as part of SIM Bilateral Comparison SIM. EM-S11, AC-DC Voltage Transfer Difference at Low Voltages using an AC Josephson Voltage Standard.
C1 [Lipe, Thomas E.; Kinard, Joseph R.; Tang, Yi-hua] NIST, Quantum Measurement Div, Gaithersburg, MD 20899 USA.
[Filipski, Piotr S.] Inst Nat Measurement Stand, Natl Res Council, Ottawa, ON K1A 0R6, Canada.
RP Lipe, TE (reprint author), NIST, Quantum Measurement Div, Gaithersburg, MD 20899 USA.
EM thomas.lipe@nist.gov; Peter.Filipski@nrc-cnrc.gc.ca
NR 11
TC 0
Z9 0
U1 0
U2 3
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1091-5281
BN 978-1-4577-1771-0
J9 IEEE IMTC P
PY 2012
BP 98
EP 102
PG 5
WC Engineering, Electrical & Electronic; Instruments & Instrumentation
SC Engineering; Instruments & Instrumentation
GA BCA46
UT WOS:000309449100021
ER
PT S
AU Kinard, J
Laug, O
Waltrip, B
Lipe, T
AF Kinard, Joseph
Laug, Owen
Waltrip, Bryan
Lipe, Thomas
GP IEEE
TI Characterization of AC-DC Transfer Shunts up to 100 A at 100 kHz Using
Two-Stage, Amplifier-Aided Current Transformers
SO 2012 IEEE INTERNATIONAL INSTRUMENTATION AND MEASUREMENT TECHNOLOGY
CONFERENCE (I2MTC)
SE IEEE Instrumentation and Measurement Technology Conference
LA English
DT Proceedings Paper
CT IEEE International Instrumentation and Measurement Technology Conference
(I2MTC)
CY MAY 13-16, 2012
CL Graz, AUSTRIA
SP IEEE, IEEE Instrumentat & Measurement Soc, IEEE Austria Sect, TU Graz, Virtual Vehicle Competence Ctr, Obuda Univ, European Acad Sci & Arts, Austrian Acad Sci, Int Soc Petr Engineers, Drilling Syst Automat Tech Sect, Arbeitskreis Hochschullehrer Messtechnik e.V. (AHMT), Joanneum Res, Austrian Ctr Competence Mechatron (ACCM), Platform Artemis Austria
DE Shunt; AC-DC; Transfer; Current; Transformer
AB We describe the construction of two-stage, amplifier-aided current transformers (CTs) and their use to characterize AC-DC transfer shunts up to 100 A at 100 kHz Tests show that the frequency coefficients of the CTs have small changes with current level. This level independence of the frequency coefficients for the CTs is used to characterize the frequency coefficients of the shunts up to 100 A and out to 100 kHz in terms of measurements at 20 A.
C1 [Kinard, Joseph; Laug, Owen; Waltrip, Bryan; Lipe, Thomas] NIST, Quantum Measurement Div, Gaithersburg, MD 20899 USA.
RP Kinard, J (reprint author), NIST, Quantum Measurement Div, Gaithersburg, MD 20899 USA.
EM joseph.kinard@nist.gov
NR 8
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1091-5281
BN 978-1-4577-1771-0
J9 IEEE IMTC P
PY 2012
BP 107
EP 110
PG 4
WC Engineering, Electrical & Electronic; Instruments & Instrumentation
SC Engineering; Instruments & Instrumentation
GA BCA46
UT WOS:000309449100023
ER
PT J
AU Thomas, JL
Dibb, JE
Stutz, J
von Glasow, R
Brooks, S
Huey, LG
Lefer, B
AF Thomas, J. L.
Dibb, J. E.
Stutz, J.
von Glasow, R.
Brooks, S.
Huey, L. G.
Lefer, B.
TI Overview of the 2007 and 2008 campaigns conducted as part of the
Greenland Summit Halogen-HOx Experiment (GSHOX)
SO ATMOSPHERIC CHEMISTRY AND PHYSICS
LA English
DT Article
ID TROPOSPHERIC BRO COLUMNS; PEROXY-RADICALS; MODELING CHEMISTRY;
BOUNDARY-LAYER; SNOW; OXIDATION; HYDROXYL; IMPACTS; AIR; NOX
AB From 10 May through 17 June 2007 and 6 June through 9 July 2008 intensive sampling campaigns at Summit, Greenland confirmed that active bromine chemistry is occurring in and above the snow pack at the highest part of the Greenland ice sheet (72 degrees 36' N, 38 degrees 25' W and 3.2 km above sea level). Direct measurements found BrO and soluble gas phase Br- mixing ratios in the low pptv range on many days (maxima < 10 pptv). Conversion of up to 200 pg m(-3) of gaseous elemental mercury (GEM) to reactive gaseous mercury (RGM) and enhanced OH relative to HO2 plus RO2 confirm that active bromine chemistry is impacting chemical cycles even at such low abundances of reactive bromine species. However, it does not appear that Br-y chemistry can fully account for observed perturbations to HOx partitioning, suggesting unknown additional chemical processes may be important in this unique environment, or that our understanding of coupled NOx-HOx-Br-y chemistry above sunlit polar snow is incomplete. Rapid transport from the north Atlantic marine boundary layer occasionally caused enhanced BrO at Summit (just two such events observed during the 12 weeks of sampling over the two seasons). In general observed reactive bromine was linked to activation of bromide (Br-) in, and release of reactive bromine from, the snowpack. A coupled snow-atmosphere model simulated observed NO and BrO at Summit during a three day interval when winds were weak. The source of Br- in surface and near surface snow at Summit is not entirely clear, but concentrations were observed to increase when stronger vertical mixing brought free tropospheric air to the surface. Reactive Br-y mixing ratios above the snow often increased in the day or two following increases in snow concentration, but this response was not consistent. On seasonal time scales concentrations of Br- in snow and reactive bromine in the air were directly related.
C1 [Thomas, J. L.; Stutz, J.] Univ Calif Los Angeles, Dept Atmospher & Ocean Sci, Los Angeles, CA 90095 USA.
[Thomas, J. L.] Univ Versailles St Quentin, UPMC Univ Paris 06, UMR8190, CNRS INSU,LATMOS IPSL, Paris, France.
[Dibb, J. E.] Univ New Hampshire, Inst Study Earth Oceans & Space, Durham, NH 03824 USA.
[von Glasow, R.] Univ E Anglia, Sch Environm Sci, Norwich NR4 7TJ, Norfolk, England.
[Brooks, S.] NOAA ATDD, Oak Ridge, TN 37831 USA.
[Huey, L. G.] Georgia Inst Technol, Sch Earth & Atmospher Sci, Atlanta, GA 30033 USA.
[Lefer, B.] Univ Houston, Dept Geosci, Houston, TX 77204 USA.
RP Thomas, JL (reprint author), Univ Calif Los Angeles, Dept Atmospher & Ocean Sci, Los Angeles, CA 90095 USA.
EM jennie.thomas@latmos.ipsl.fr; jack.dibb@unh.edu
RI Stutz, Jochen/K-7159-2014; von Glasow, Roland/E-2125-2011
OI von Glasow, Roland/0000-0002-3944-2784
FU NSF GEO ATM tropospheric chemistry program; CNRS-INSU
FX The research described herein was financially supported by the NSF GEO
ATM tropospheric chemistry program, with logistical support from NSF OPP
ARSL through their contractor CPS. The assistance from CPS field staff
was outstanding and is greatly appreciated. Heavy airlift by the NY ANG
was essential to field our large group, and to sustain the operation of
the Summit station. We are grateful that the Greenland Home Rule
Government and the Danish Polar Center granted us permission to work at
Summit.; The publication of this article is financed by CNRS-INSU.
NR 24
TC 2
Z9 2
U1 0
U2 22
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1680-7316
J9 ATMOS CHEM PHYS
JI Atmos. Chem. Phys.
PY 2012
VL 12
IS 22
BP 10833
EP 10839
DI 10.5194/acp-12-10833-2012
PG 7
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 055JG
UT WOS:000312411300014
ER
PT J
AU Blomquist, BW
Fairall, CW
Huebert, BJ
Wilson, ST
AF Blomquist, B. W.
Fairall, C. W.
Huebert, B. J.
Wilson, S. T.
TI Direct measurement of the oceanic carbon monoxide flux by eddy
correlation
SO ATMOSPHERIC MEASUREMENT TECHNIQUES
LA English
DT Article
ID CAVITY-OUTPUT SPECTROSCOPY; DISSOLVED ORGANIC-CARBON; GAS-EXCHANGE;
SARGASSO SEA; AIR; SEAWATER; METHANE; CONSUMPTION
AB This report presents results from a field trial of ship-based air-sea flux measurements of carbon monoxide (CO) by direct eddy correlation with an infrared-laser trace gas analyzer. The analyzer utilizes Off-Axis Integrated-Cavity-Output Spectroscopy (OA-ICOS) to achieve high selectivity for CO, rapid response (similar to 2 Hz) and low noise. Over a two-day sea trial, peak daytime seawater CO concentrations were similar to 1.5 nM and wind speeds were consistently 10-12 m s(-1). A clear diel cycle in CO flux with an early afternoon maximum was observed. An analysis of flux error suggests the effects of non-stationarity are important, and air-sea CO flux measurements are best performed in regions remote from continental pollution sources.
C1 [Blomquist, B. W.; Huebert, B. J.] Univ Hawaii, Dept Oceanog, Honolulu, HI 96822 USA.
[Fairall, C. W.] NOAA, Earth Syst Res Lab, Div Phys Sci, Boulder, CO 80305 USA.
[Wilson, S. T.] Univ Hawaii, Ctr Microbial Oceanog Res & Educ, Honolulu, HI 96822 USA.
RP Blomquist, BW (reprint author), Univ Hawaii, Dept Oceanog, Honolulu, HI 96822 USA.
EM blomquis@hawaii.edu
FU NSF [AGS-1036062]; NOAA Climate Program Office, Climate Observation
Division
FX The authors gratefully acknowledge support from NSF grant AGS-1036062
and NOAA Climate Program Office, Climate Observation Division. We are
also grateful for the support of the officers and crew of the University
of Hawaii R/V Kilo Moana and Craig Nosse and Matt Church of the HOT
program. The authors further acknowledge Ian Faloona for helpful
comments and suggestions during preparation of this manuscript. We are
grateful to Doug Baer and Robert Provencal of LGR for providing the CO
analyzer used in this work.
NR 33
TC 8
Z9 8
U1 1
U2 16
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1867-1381
J9 ATMOS MEAS TECH
JI Atmos. Meas. Tech.
PY 2012
VL 5
IS 12
BP 3069
EP 3075
DI 10.5194/amt-5-3069-2012
PG 7
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 058WS
UT WOS:000312666200007
ER
PT J
AU Laborde, M
Schnaiter, M
Linke, C
Saathoff, H
Naumann, KH
Mohler, O
Berlenz, S
Wagner, U
Taylor, JW
Liu, D
Flynn, M
Allan, JD
Coe, H
Heimerl, K
Dahlkotter, F
Weinzierl, B
Wollny, AG
Zanatta, M
Cozic, J
Laj, P
Hitzenberger, R
Schwarz, JP
Gysel, M
AF Laborde, M.
Schnaiter, M.
Linke, C.
Saathoff, H.
Naumann, K. -H.
Moehler, O.
Berlenz, S.
Wagner, U.
Taylor, J. W.
Liu, D.
Flynn, M.
Allan, J. D.
Coe, H.
Heimerl, K.
Dahlkoetter, F.
Weinzierl, B.
Wollny, A. G.
Zanatta, M.
Cozic, J.
Laj, P.
Hitzenberger, R.
Schwarz, J. P.
Gysel, M.
TI Single Particle Soot Photometer intercomparison at the AIDA chamber
SO ATMOSPHERIC MEASUREMENT TECHNIQUES
LA English
DT Article
ID LASER-INDUCED INCANDESCENCE; LIGHT-ABSORPTION; ALPHA-PINENE; CARBON;
AEROSOLS; CALIBRATION; DEPENDENCE; OZONOLYSIS; STATE
AB Soot particles, consisting of black carbon (BC), organic carbon (OC), inorganic salts, and trace elements, are emitted into the atmosphere during incomplete combustion. Accurate measurements of atmospheric BC are important as BC particles cause adverse health effects and impact the climate.
Unfortunately, the accurate measurement of the properties and mass concentrations of BC particles remains difficult. The Single Particle Soot Photometer (SP2) can contribute to improving this situation by measuring the mass of refractory BC in individual particles as well as its mixing state.
Here, the results of the first detailed SP2 intercomparison, involving 6 SP2s from 6 different research groups, are presented, including the most evolved data products that can presently be calculated from SP2 measurements.
It was shown that a detection efficiency of almost 100% down to 1 fg BC per particle can readily be achieved, and that this limit can be pushed down to similar to 0.2 fg BC with optimal SP2 setup. Number and mass size distributions of BC cores agreed within +/- 5% and +/- 10 %, respectively, in between the SP2s, with larger deviations in the range below 1 fg BC.
The accuracy of the SP2's mass concentration measurement depends on the calibration material chosen. The SP2 has previously been shown to be equally sensitive to fullerene soot and ambient BC from sources where fossil fuel was dominant and less sensitive to fullerene soot than to Aquadag. Fullerene soot was therefore chosen as the standard calibration material by the SP2 user community; however, many data sets rely solely on Aquadag calibration measurements. The difference in SP2 sensitivity was found to be almost equal (fullerene soot to Aquadag response ratio of similar to 0.75 at 8.9 fg BC) for all SP2s. This allows the calculation of a fullerene soot equivalent calibration curve from a measured Aquadag calibration, when no fullerene soot calibration is available. It could be shown that this approach works well for all SP2s over the mass range of 1-10 fg. This range is suitable for typical BC mass size distributions in the ambient air far from sources.
The number size distribution of purely scattering particles optically measured by the 6 SP2s also agreed within 15%. Measurements of the thickness of non-refractory coatings (i.e. product from alpha-pinene ozonolysis) on the BC particles, relying on BC mass optical size and on an additional particle position measurement, also compared well (within +/- 17%). The estimated coating thickness values were consistent with thermo-optical analysis of OC and elemental carbon (EC) content, though absolutely accurate values cannot be expected given all the assumptions that have to be made regarding refractive index, particle morphology, etc.
This study showed that the SP2 provides accurate and reproducible data, but also that high data quality is only achieved if the SP2 is carefully tuned and calibrated. It has to be noted that the agreement observed here does not account for additional variability in output data that could result from the differences in the potentially subjective assumptions made by different SP2 users in the data processing.
C1 [Laborde, M.; Gysel, M.] Paul Scherrer Inst, Lab Atmospher Chem, CH-5232 Villigen, Switzerland.
[Schnaiter, M.; Linke, C.; Saathoff, H.; Naumann, K. -H.; Moehler, O.] Karlsruhe Inst Technol, Inst Meteorol & Climate Res, Karlsruhe, Germany.
[Berlenz, S.; Wagner, U.] Karlsruhe Inst Technol, Inst Kolbenmaschinen, Karlsruhe, Germany.
[Taylor, J. W.; Liu, D.; Flynn, M.; Allan, J. D.; Coe, H.] Univ Manchester, Sch Earth Atmospher & Environm Sci, Manchester, Lancs, England.
[Allan, J. D.] Univ Manchester, Natl Ctr Atmospher Sci, Manchester, Lancs, England.
[Heimerl, K.; Dahlkoetter, F.; Weinzierl, B.] Deutsch Zentrum Luft & Raumfahrt, Inst Phys Atmosphare, Oberpfaffenhofen, Germany.
[Wollny, A. G.] Max Planck Inst Chem, Biogeochem Dept, D-6500 Mainz, Germany.
[Zanatta, M.; Cozic, J.; Laj, P.] Lab Glaciol & Geophys Environm, F-38402 St Martin Dheres, France.
[Hitzenberger, R.] Univ Vienna, Fak Phys, A-1010 Vienna, Austria.
[Schwarz, J. P.] NOAA, Earth Syst Res Lab, Boulder, CO USA.
RP Gysel, M (reprint author), Paul Scherrer Inst, Lab Atmospher Chem, CH-5232 Villigen, Switzerland.
EM martin.gysel@psi.ch
RI Liu, Dantong/E-6668-2017; Allan, James/B-1160-2010; Schnaiter,
Martin/A-2370-2013; Naumann, Karl-Heinz/J-9304-2012; Coe,
Hugh/C-8733-2013; Saathoff, Harald/J-8911-2012; schwarz,
joshua/G-4556-2013; Gysel, Martin/C-3843-2008; Mohler,
Ottmar/J-9426-2012; Weinzierl, Bernadett/G-5319-2012; Manager, CSD
Publications/B-2789-2015
OI Taylor, Jonathan/0000-0002-2120-186X; Liu, Dantong/0000-0002-3879-2280;
Allan, James/0000-0001-6492-4876; schwarz, joshua/0000-0002-9123-2223;
Gysel, Martin/0000-0002-7453-1264; Weinzierl,
Bernadett/0000-0003-4555-5686;
FU EU; Swiss National Science Foundation; German Research Foundation (DFG)
[SPP-1294 HALO, PO 1013/2-2]; Helmholtz Association [VH-NG-606]; UK
Natural Environment Research Council [NE/H008136/1]; Deutsche
Forschungsgemeinschaft (DFG) [MO 668/1-2]; Karlsruhe Institute of
Technology (KIT) [STUB 2011]
FX Funding was received from the EU through EUROCHAMP-2 program and the
Swiss National Science Foundation. A. W. and the MPIC Mainz acknowledge
funding from the German Research Foundation (DFG, SPP-1294 HALO, PO
1013/2-2). We thank E. Traxler (University of Vienna) for analyzing the
filters with the Sunset analyzer. B. W. and DLR Oberpfaffenhofen
acknowledge funding by the Helmholtz Association under grant number
VH-NG-606 (Helmholtz-University Young Investigators Group AerCARE). The
University of Manchester would like to acknowledge support from the UK
Natural Environment Research Council through the MC4 project [Grant ref:
NE/H008136/1]. O. M. acknowledges funding from the Deutsche
Forschungsgemeinschaft (DFG, SPP1294 HALO project MO 668/1-2) received
to operate the AIDA facility for instrument intercomparison. Setup and
operation of the mobile diesel engine at the AIDA facility was funded by
the Karlsruhe Institute of Technology (KIT) startup funds (STUB 2011).
NR 32
TC 37
Z9 37
U1 6
U2 50
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1867-1381
EI 1867-8548
J9 ATMOS MEAS TECH
JI Atmos. Meas. Tech.
PY 2012
VL 5
IS 12
BP 3077
EP 3097
DI 10.5194/amt-5-3077-2012
PG 21
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 058WS
UT WOS:000312666200008
ER
PT J
AU Harding, BL
Wood, AW
Prairie, JR
AF Harding, B. L.
Wood, A. W.
Prairie, J. R.
TI The implications of climate change scenario selection for future
streamflow projection in the Upper Colorado River Basin
SO HYDROLOGY AND EARTH SYSTEM SCIENCES
LA English
DT Article
ID WESTERN UNITED-STATES; REGIONAL-SCALE HYDROLOGY; WATER-RESOURCES;
MULTIMODEL ENSEMBLE; CHANGE IMPACTS; MODEL OUTPUTS; VIC-2L MODEL;
AVAILABILITY; PREDICTION; CALIFORNIA
AB The impact of projected 21st century climate conditions on streamflow in the Upper Colorado River Basin was estimated using a multi-model ensemble approach wherein the downscaled outputs of 112 future climate projections from 16 global climate models (GCMs) were used to drive a macroscale hydrology model. By the middle of the century, the impacts on streamflow range, over the entire ensemble, from a decrease of approximately 30% to an increase of approximately the same magnitude. Although prior studies and associated media coverage have focused heavily on the likelihood of a drier future for the Colorado River Basin, approximately 25 to 35% of the ensemble of runs, by 2099 and 2039, respectively, result in no change or increases in streamflow. The broad range of projected impacts is primarily the result of uncertainty in projections of future precipitation, and a relatively small part of the variability of precipitation across the projections can be attributed to the effect of emissions pathways. The simulated evolution of future temperature is strongly influenced by emissions, but temperature has a smaller influence than precipitation on flow. Period change statistics (i.e., the change in flow from one 30-yr period to another) vary as much within a model ensemble as between models and emissions pathways. Even by the end of the current century, the variability across the projections is much greater than changes in the ensemble mean. The relatively large ensemble analysis described herein provides perspective on earlier studies that have used fewer scenarios, and suggests that impact analyses relying on one or a few climate scenarios are unacceptably influenced by the choice of projections.
C1 [Harding, B. L.] AMEC Environm & Infrastruct, Boulder, CO 80239 USA.
[Wood, A. W.] NOAA, Natl Weather Serv, Portland, OR USA.
[Prairie, J. R.] Bur Reclamat, Boulder, CO USA.
RP Harding, BL (reprint author), AMEC Environm & Infrastruct, Boulder, CO 80239 USA.
EM ben.harding@amec.com
FU Reclamation, Lower Colorado Region; Office of Science of the US
Department of Energy [DE-AC02-05CH11231.3TIER]
FX This work was primarily funded by Reclamation, Lower Colorado Region.
The climate change daily forcing datasets were produced and contributed
by co-author Wood using resources of the National Energy Research
Scientific Computing Center, which is supported by the Office of Science
of the US Department of Energy under Contract No.
DE-AC02-05CH11231.3TIER, Inc. (www.3tier.com) is also acknowledged for
accommodating part of A. W. Wood's effort during his employment at
3TIER. AMEC is acknowledged for accommodating part of B. L. Harding's
effort. We thank Ken Nowak for assistance related to sampling the
projection ensembles. We also thank two reviewers and our editor for
their insightful suggestions.
NR 57
TC 25
Z9 25
U1 2
U2 31
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1027-5606
EI 1607-7938
J9 HYDROL EARTH SYST SC
JI Hydrol. Earth Syst. Sci.
PY 2012
VL 16
IS 11
BP 3989
EP 4007
DI 10.5194/hess-16-3989-2012
PG 19
WC Geosciences, Multidisciplinary; Water Resources
SC Geology; Water Resources
GA 043AL
UT WOS:000311514600005
ER
PT J
AU Kuester, DG
Novotny, DR
Guerrieri, JR
AF Kuester, Daniel G.
Novotny, David R.
Guerrieri, Jeffrey R.
TI Baseband Signals and Power in Load-Modulated Digital Backscatter
SO IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
LA English
DT Article
DE Binary phase shift keying; Amplitude shift keying; Backscatter;
Baseband; Frequency modulation; Radiofrequency identification; radio
frequency identification (RFID); Electromagnetic scattering; modulation;
radio communication
ID UHF
AB Passive digital backscatter signals in systems like radio frequency identification (RFID) are usually received along with strong interference from a leaked carrier. The simplest way to quantify the "useful" communication signal is to separate it as an amplitude-shift keying (ASK) or biphase-shift keying (BPSK) component. These definitions give different power normalizations, posing some complexity in comparison of link quantities. This letter investigates their suitability in terms of basic signal theory and conservation of energy to clarify relationships between the baseband signals and "backscattered power." Defining received backscatter as BPSK guarantees energy conservation for arbitrary tag modulation loads.
C1 [Kuester, Daniel G.; Novotny, David R.; Guerrieri, Jeffrey R.] NIST, Electromagnet Div, Boulder, CO 80305 USA.
RP Kuester, DG (reprint author), NIST, Electromagnet Div, Boulder, CO 80305 USA.
EM dkuester@nist.gov; david.novotny@nist.gov; jeffrey.guerrieri@nist.gov
FU U.S. Department of Homeland Security Science and Technology
Directorate's Office of Standards; NIST [HSHQDC-09-X-00305]
FX This work was supported by the U.S. Department of Homeland Security
Science and Technology Directorate's Office of Standards cosponsored
with NIST under Contract HSHQDC-09-X-00305.
NR 17
TC 1
Z9 1
U1 1
U2 5
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 1536-1225
J9 IEEE ANTENN WIREL PR
JI IEEE Antennas Wirel. Propag. Lett.
PY 2012
VL 11
BP 1374
EP 1377
DI 10.1109/LAWP.2012.2228460
PG 4
WC Engineering, Electrical & Electronic; Telecommunications
SC Engineering; Telecommunications
GA 056IU
UT WOS:000312482400001
ER
PT S
AU Burke, J
Griesmann, U
AF Burke, Jan
Griesmann, Ulf
BE Schmit, J
Creath, K
Towers, CE
Burke, J
TI Calibrating the sag due to gravity of horizontal interferometer
reference flat
SO INTERFEROMETRY XVI: TECHNIQUES AND ANALYSIS
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Interferometry XVI - Techniques and Analysis
CY AUG 13-15, 2012
CL San Diego, CA
SP SPIE
DE Optical interferometry; Reference fla calibration; Sag
ID SHIFTING FIZEAU INTERFEROMETER; OPTICAL FLAT; 3-FLAT TEST; MIRROR
AB We describe a method for measuring the deflectio due to gravity (sag) of horizontally mounted reference flat of phase shifting interferometers. The planarity of a test fla can be measured sag-free while supporting it iso-statically on a suitable visco-elastic polymer foam. A sag map is obtained when the sag-free flatnes error is subtracted from the flatnes error of the same fla held at its edge.
C1 [Burke, Jan] Commonwealth Sci & Ind Res Orgainzat, Australian Ctr Precis Opt, Bradfiel Rd, Lindfield, NSW 2070, Australia.
[Burke, Jan] BIAS, D-28359 Bremen, Germany.
[Griesmann, Ulf] Natl Inst Stand & Technol, Phys Measurement Lab, Gaithersburg, MD 20899 USA.
RP Burke, J (reprint author), Commonwealth Sci & Ind Res Orgainzat, Australian Ctr Precis Opt, Bradfiel Rd, Lindfield, NSW 2070, Australia.
EM burke@bias.de; ulf.griesmann@nist.gov
NR 23
TC 5
Z9 5
U1 0
U2 2
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-9210-4
J9 PROC SPIE
PY 2012
VL 8493
AR 84930F
DI 10.1117/12.929968
PG 9
WC Optics; Radiology, Nuclear Medicine & Medical Imaging; Spectroscopy
SC Optics; Radiology, Nuclear Medicine & Medical Imaging; Spectroscopy
GA BCZ60
UT WOS:000312212400015
ER
PT S
AU Soons, JA
Griesmann, U
AF Soons, Johannes A.
Griesmann, Ulf
BE Schmit, J
Creath, K
Towers, CE
Burke, J
TI Absolute interferometric tests of spherical surfaces based on rotational
and translational shears
SO INTERFEROMETRY XVI: TECHNIQUES AND ANALYSIS
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Interferometry XVI - Techniques and Analysis
CY AUG 13-15, 2012
CL San Diego, CA
SP SPIE
DE Interferometer; calibration; transmission sphere; stitching
ID WAVE-FRONT; RECONSTRUCTION; INTERFEROGRAMS
AB Traceability of interferometric form measurements requires characterization of the reference wavefront. We investigate absolute tests for spherical surfaces where the form errors of both reference and test surface are estimated by minimizing the difference in measurements obtained at various positions and orientations of the test surface. This approach yields an estimate for the test surface errors without changing experimental settings, such as cavity length, that may affect the apparent reference errors. The method requires at least one translation of the test surface in the field of view and one rotation. Additional measurements provide redundancies to improve and characterize measurement uncertainties.
The errors of the reference and test surface are estimated with pixel-level spatial resolution without assuming an underlying error model, such as a representation based on Zernike polynomials. The estimation algorithm consists of an iterative sequence of stitching steps, with the role of reference and test surface reversed for each step. Measurement uncertainties are evaluated using Monte-Carlo procedures and analysis of residual errors for experiments with redundant measurements. Key sources of measurement uncertainty are spatially correlated measurement errors resulting from errors in test surface location, image distortion, and environmental effects. Experimental results are presented comparing the method to a random ball test.
C1 [Soons, Johannes A.; Griesmann, Ulf] NIST, Phys Measurement Lab, Gaithersburg, MD 20899 USA.
RP Soons, JA (reprint author), NIST, Phys Measurement Lab, 100 Bur Dr, Gaithersburg, MD 20899 USA.
EM soons@nist.gov
NR 27
TC 9
Z9 9
U1 0
U2 9
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-9210-4
J9 PROC SPIE
PY 2012
VL 8493
AR 84930G
DI 10.1117/12.930030
PG 12
WC Optics; Radiology, Nuclear Medicine & Medical Imaging; Spectroscopy
SC Optics; Radiology, Nuclear Medicine & Medical Imaging; Spectroscopy
GA BCZ60
UT WOS:000312212400016
ER
PT J
AU Kugaonkar, R
Gangopadhyay, A
Yesha, Y
Joshi, A
Yesha, Y
Grasso, MA
Brady, M
Rishe, N
AF Kugaonkar, Rohit
Gangopadhyay, Aryya
Yesha, Yelena
Joshi, Anupam
Yesha, Yaacov
Grasso, Michael A.
Brady, Mary
Rishe, Napthali
GP ACM
TI Finding Associations among SNPs for Prostate Cancer using Collaborative
Filtering
SO PROCEEDINGS OF THE ACM SIXTH INTERNATIONAL WORKSHOP ON DATA AND TEXT
MINING IN BIOMEDICAL INFORMATICS
LA English
DT Proceedings Paper
CT 6th ACM International Workshop on Data and Text Mining in Biomedical
Informatics (DTMBIO)
CY OCT 29-NOV 02, 2012
CL Maui, HI
SP Assoc Comp Machinery, Assoc Comp Machinery Special Interest Grp Informat Retrieval, Assoc Comp Machinery SIGWEB
DE Prostate cancer; SNP; SNP association; Collaborative filtering; tag SNPs
AB Prostate cancer is the second leading cause of cancer related deaths among men. Because of the slow growing nature of prostate cancer, sometimes surgical treatment is not required for less aggressive cancers. Recent debates over prostate-specific antigen (PSA) screening have drawn new attention to prostate cancer. Genome-based screening can potentially help in assessing the risk of developing prostate cancer. Due to the complicated nature of prostate cancer, studying the entire genome is essential to find genomic traits. Due to the high cost of studying all Single Nucleotide Polymorphisms (SNPs), it is essential to find tag SNPs which can represent other SNPs. Earlier methods to find tag SNPs using associations between SNPs either use SNP's location information or are based on data of very few SNP markers in each sample. Our study is based on 2300 samples with 550,000 SNPs each. We have not used SNP location information or any predefined standard cut-offs to find tag SNPs. Our approach is based on using collaborative filtering methods to find pairwise associations among SNPs and thus list top-N tag SNPs. We have found 25 tag SNPs which have highest similarities to other SNPs. In addition we found 16 more SNPs which have high correlation with the known high risk SNPs that are associated with prostate cancer. We used some of these newly found SNPs with 5 different classification algorithms and observed some improvement in prostate cancer prediction accuracy over using the original known high risk SNPs.
C1 [Kugaonkar, Rohit; Gangopadhyay, Aryya; Yesha, Yelena; Joshi, Anupam; Yesha, Yaacov] Univ Maryland Baltimore Cty, Baltimore, MD 21228 USA.
[Grasso, Michael A.] Univ Maryland, Sch Med, Baltimore, MD 20742 USA.
[Brady, Mary] NIST, Gaithersburg, MD 20899 USA.
[Rishe, Napthali] Florida Int Univ, Miami, FL 33199 USA.
RP Kugaonkar, R (reprint author), Univ Maryland Baltimore Cty, Baltimore, MD 21228 USA.
EM rohitku1@umbc.edu; gangopad@umbc.edu; yeyesha@cs.umbc.edu;
joshi@cs.umbc.edu; yayesha@cs.umbc.edu; mgrasso@umem.org;
mary.brady@nist.gov; rishen@cis.fiu.edu
NR 12
TC 1
Z9 1
U1 0
U2 1
PU ASSOC COMPUTING MACHINERY
PI NEW YORK
PA 1515 BROADWAY, NEW YORK, NY 10036-9998 USA
BN 978-1-4503-1716-0
PY 2012
BP 57
EP 60
PG 4
WC Computer Science, Information Systems; Medical Informatics
SC Computer Science; Medical Informatics
GA BDC46
UT WOS:000312600600009
ER
PT S
AU de Koning, CA
Millward, G
Pizzo, VJ
Biesecker, DA
AF de Koning, C. A.
Millward, G.
Pizzo, V. J.
Biesecker, D. A.
BE Hu, Q
Li, G
Zank, GP
Ao, X
Verkhoglyadova, O
Adams, JH
TI Problems Encountered When Characterizing CMEs in an Operational Setting
SO SPACE WEATHER: THE SPACE RADIATION ENVIRONMENT
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 11th Annual International Astrophysics Conference (AIAC)
CY MAR 19-23, 2012
CL Palm Springs, CA
SP Univ Alabama, Ctr Space Plasma & Aeronom Res
DE coronal mass ejection; CME; cone model; space weather
ID MISSION; MASS
AB On 2011-10-01, WSA-Enlil became the first operational numerical space weather prediction model to be used by the United States National Weather Service. One of the primary purposes of this heliospheric model is to provide advance warning of geomagnetic storms from Earth-directed CMEs; such a forecast requires an accurate characterization of a CME. Almost a decade of published literature had suggested that the single viewpoint, flat-fronted cone model of Xie et al. [1] could supply the quantitative and consistent characterization of CMEs necessary for operational space weather forecasting. However, early in the transition-to-operations process, it became clear that this basic cone model is fundamentally flawed as an operational forecasting tool. We will describe the problems associated with this model, focusing in particular on the problems that arise because an unrealistic model shape is used to describe CME morphology. One of the consequences of the shape mismatch is that the flat-fronted cone model underestimates the speed of a CME.
C1 [de Koning, C. A.; Millward, G.] Univ Colorado, CIRES, Boulder, CO 80309 USA.
[de Koning, C. A.; Millward, G.; Pizzo, V. J.; Biesecker, D. A.] Natl Ocean & Atmospher Adm, SWPC, Boulder, CO 80305 USA.
RP de Koning, CA (reprint author), Univ Colorado, CIRES, Boulder, CO 80309 USA.
NR 16
TC 0
Z9 0
U1 0
U2 2
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-1114-2
J9 AIP CONF PROC
PY 2012
VL 1500
BP 20
EP 25
DI 10.1063/1.4768739
PG 6
WC Astronomy & Astrophysics; Physics, Applied
SC Astronomy & Astrophysics; Physics
GA BDB00
UT WOS:000312410500003
ER
PT J
AU Cohl, HS
Volkmer, H
AF Cohl, Howard S.
Volkmer, Hans
TI Definite Integrals using Orthogonality and Integral Transforms
SO SYMMETRY INTEGRABILITY AND GEOMETRY-METHODS AND APPLICATIONS
LA English
DT Article
DE definite integrals; associated Legendre functions; Bessel functions;
Chebyshev polynomials of the first kind
AB We obtain definite integrals for products of associated Legendre functions with Bessel functions, associated Legendre functions, and Chebyshev polynomials of the first kind using orthogonality and integral transforms.
C1 [Cohl, Howard S.] NIST, Informat Technol Lab, Appl & Computat Math Div, Gaithersburg, MD 20899 USA.
[Volkmer, Hans] Univ Wisconsin, Dept Math Sci, Milwaukee, WI 53201 USA.
RP Cohl, HS (reprint author), NIST, Informat Technol Lab, Appl & Computat Math Div, Gaithersburg, MD 20899 USA.
EM howard.cohl@nist.gov; volkmer@uwm.edu
NR 16
TC 0
Z9 0
U1 0
U2 6
PU NATL ACAD SCI UKRAINE, INST MATH
PI KYIV 4
PA 3 TERESCHCHENKIV SKA ST, KYIV 4, 01601, UKRAINE
SN 1815-0659
J9 SYMMETRY INTEGR GEOM
JI Symmetry Integr. Geom.
PY 2012
VL 8
AR 077
DI 10.3842/SIGMA.2012.077
PG 10
WC Physics, Mathematical
SC Physics
GA 054VS
UT WOS:000312373600001
ER
PT J
AU Liu, CW
Singhal, A
Wijesekera, D
AF Liu, Changwei
Singhal, Anoop
Wijesekera, Duminda
GP IEEE
TI Using Attack Graphs in Forensic Examinations
SO 2012 SEVENTH INTERNATIONAL CONFERENCE ON AVAILABILITY, RELIABILITY AND
SECURITY (ARES)
LA English
DT Proceedings Paper
CT 7th International Conference on Availability, Reliability and Security
(ARES)
CY AUG 20-24, 2012
CL Prague, CZECH REPUBLIC
SP Soc ICT Knowledge Transfer, Secure
DE attack graph; forensic analysis; anti-forensics; anti-forensics
vulnerability database
AB Attack graphs are used to compute potential attack paths from a system configuration and known vulnerabilities of a system. Attack graphs can be used to eliminate known vulnerability sequences that can be eliminated to make attacks difficult and help forensic examiners in identifying many potential attack paths. After an attack happens, forensic analysis, including linking evidence with attacks, helps further understand and refine the attack scenario that was launched. Given that there are anti-forensic tools that can obfuscate, minimize or eliminate attack footprints, forensic analysis becomes harder. As a solution, we propose to apply attack graph to forensic analysis. We do so by including anti-forensic capabilities into attack graphs, so that the missing evidence can be explained by using longer attack paths that erase potential evidence. We show this capability in an explicit case study involving a database attack.
C1 [Liu, Changwei; Wijesekera, Duminda] George Mason Univ, Dept Comp Sci, Fairfax, VA 22030 USA.
[Singhal, Anoop] Natl Inst Stand & Technol, Gaithersburg, MD 20899 USA.
RP Liu, CW (reprint author), George Mason Univ, Dept Comp Sci, Fairfax, VA 22030 USA.
EM cliu6@gmu.edu; anoop.singhal@nist.gov; dwijesek@gmu.edu
NR 18
TC 6
Z9 6
U1 0
U2 3
PU IEEE COMPUTER SOC
PI LOS ALAMITOS
PA 10662 LOS VAQUEROS CIRCLE, PO BOX 3014, LOS ALAMITOS, CA 90720-1264 USA
BN 978-0-7695-4775-6
PY 2012
BP 596
EP 603
DI 10.1109/ARES.2012.58
PG 8
WC Computer Science, Theory & Methods; Engineering, Electrical & Electronic
SC Computer Science; Engineering
GA BCX66
UT WOS:000311858100078
ER
PT S
AU Marvel, JA
Franaszek, M
Wilson, JL
Hong, T
AF Marvel, J. A.
Franaszek, M.
Wilson, J. L.
Hong, T.
BE Tescher, AG
TI Performance Evaluation of Consumer-Grade 3D Sensors for Static 6DOF Pose
Estimation Systems
SO APPLICATIONS OF DIGITAL IMAGE PROCESSING XXXV
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Applications of Digital Image Processing XXXV
CY AUG 13-16, 2012
CL San Diego, CA
SP SPIE
DE Computer vision for robotics and automation; range sensing; directional
surface fitting
AB Low-cost 3D depth and range sensors are steadily becoming more widely available and affordable, and thus popular for robotics enthusiasts. As basic research tools, however, their accuracy and performance are relatively unknown. In this paper, we describe a framework for performance evaluation and measurement error analysis for 6 degrees of freedom pose estimation systems using traceable ground truth instruments. Characterizing sensor drift and variance, and quantifying range, spatial and angular accuracy, our framework focuses on artifact surface fitting and static pose analysis, reporting testing and environmental conditions in compliance with the upcoming ASTM E57.02 standard.
C1 [Marvel, J. A.; Franaszek, M.; Hong, T.] NIST, Intelligent Syst Div, 100 Bur Dr,MS-8230, Gaithersburg, MD 20899 USA.
[Wilson, J. L.] Princeton Univ, Dept Comp Sci, Princeton, NJ 08544 USA.
RP Marvel, JA (reprint author), NIST, Intelligent Syst Div, 100 Bur Dr,MS-8230, Gaithersburg, MD 20899 USA.
EM jeremy.marvel@nist.gov
NR 11
TC 0
Z9 0
U1 0
U2 1
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-9216-6
J9 PROC SPIE
PY 2012
VL 8499
AR 849905
DI 10.1117/12.929752
PG 11
WC Engineering, Electrical & Electronic; Imaging Science & Photographic
Technology
SC Engineering; Imaging Science & Photographic Technology
GA BCZ51
UT WOS:000312200600004
ER
PT J
AU Hurst, TP
Fernandez, ER
Mathis, JT
Miller, JA
Stinson, CM
Ahgeak, EF
AF Hurst, Thomas P.
Fernandez, Elena R.
Mathis, Jeremy T.
Miller, Jessica A.
Stinson, Charlotte M.
Ahgeak, Ernestine F.
TI Resiliency of juvenile walleye pollock to projected levels of ocean
acidification
SO AQUATIC BIOLOGY
LA English
DT Article
DE Ocean acidification; Hypercapnia; Growth rate; Consumption; Otolith;
Temperature
ID EASTERN BERING-SEA; COD GADUS-MORHUA; TROPICAL MARINE FISH; PACIFIC COD;
ENVIRONMENTAL HYPERCAPNIA; THERAGRA-CHALCOGRAMMA; ELEVATED-TEMPERATURE;
CALCIFYING ORGANISMS; COMPENSATORY GROWTH; ANTHROPOGENIC CO2
AB As atmospheric concentrations of CO2 rise, the pH of high-latitude oceans is predicted to decrease by 0.3 to 0.5 units by 2100. Several biological consequences of ocean acidification across this pH range have already been documented in invertebrates and tropical marine fishes. However, little work has been done examining potential responses of the temperate and boreal marine fish species that support major fisheries. In 2 experiments, we examined the growth responses of juvenile walleye pollock Theragra chalcogramma at ambient and 3 elevated CO2 levels. In a short-term experiment with yearlings, CO2 treatment had no significant effect on growth or condition after 6 wk of rearing. Elevated CO2 levels (> 450 mu atm) increased the rate of otolith deposition, but did not affect otolith elemental composition. In a second experiment, growth in length of sub-yearlings over 12 wk at 8 degrees C was 7.2% faster in the 2 higher CO2 treatments (> 1200 mu atm) than in the lower CO2 treatments (< 900 mu atm). Growth of sub-yearlings measured during 11 subsequent weeks of rearing at 2.5 degrees C did not differ among CO2 treatments. There was no effect of CO2 treatment on condition factor following either phase of the experiment. Sub-yearling consumption rates were not directly affected by CO2 treatment, confirming that growth at elevated CO2 levels is not maintained through compensatory feeding. While not exhaustive of potential interactive environmental factors, these experiments demonstrate a general resiliency of growth energetics in juvenile walleye pollock to the direct effects of CO2 changes predicted for the Gulf of Alaska and Bering Sea in the next century.
C1 [Hurst, Thomas P.] NOAA, Fisheries Behav Ecol Program, Resource Assessment & Conservat Engn Div,Hatfield, Alaska Fisheries Sci Ctr,Natl Marine Fisheries Se, Newport, OR 97365 USA.
[Fernandez, Elena R.; Mathis, Jeremy T.] Univ Alaska, Sch Fisheries & Ocean Sci, Fairbanks, AK 99775 USA.
[Miller, Jessica A.] Oregon State Univ, Hatfield Marine Sci Ctr, Coastal Oregon Marine Expt Stn, Dept Fisheries & Wildlife, Newport, OR 97365 USA.
RP Hurst, TP (reprint author), NOAA, Fisheries Behav Ecol Program, Resource Assessment & Conservat Engn Div,Hatfield, Alaska Fisheries Sci Ctr,Natl Marine Fisheries Se, Newport, OR 97365 USA.
EM thomas.hurst@noaa.gov
RI Hurst, Thomas/N-1401-2013
FU Pollock Conservation Cooperative Research Center; NOAA's Ocean
Acidification Program; Rasmuson Foundation; Oregon State University's
Hatfield Marine Science Center; National Science Foundation
[OCE-1004947]
FX M. Spencer and S. Haines assisted with fish collections. M. Ottmar, W.
Clerf, C. Danley, S. Haines, and C. Magel assisted with maintenance of
experimental fish. C. Magel assisted with system maintenance and
CO2 monitoring throughout the experiments. C. Ryer, P.
McElhaney, and 3 anonymous reviewers provided valuable comments on this
manuscript. Some of this work was completed in partial fulfillment of
E.R.F.'s M.S. thesis at the University of Alaska at Fairbanks. This
project was funded by a grant from the Pollock Conservation Cooperative
Research Center to J.T.M. and grants to T.P.H. from NOAA's Ocean
Acidification Program. E.R.F. was supported with a graduate re search
fellowship from the Rasmuson Foundation and a Markham Award from Oregon
State University's Hatfield Marine Science Center. C.M.S. and E.F.A.
were supported by a National Science Foundation Research Experience for
Undergraduates internship under award OCE-1004947 to the Hatfield Marine
Science Center. Reference to trade names does not imply endorsement by
the National Marine Fisheries Service. The findings and conclusions in
this paper are those of the authors and do not necessarily represent the
views of the National Marine Fisheries Service.
NR 65
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U1 8
U2 78
PU INTER-RESEARCH
PI OLDENDORF LUHE
PA NORDBUNTE 23, D-21385 OLDENDORF LUHE, GERMANY
SN 1864-7790
J9 AQUAT BIOL
JI Aquat. Biol.
PY 2012
VL 17
IS 3
BP 247
EP 259
DI 10.3354/ab00483
PG 13
WC Marine & Freshwater Biology
SC Marine & Freshwater Biology
GA 053CO
UT WOS:000312247800005
ER
PT S
AU Battles, D
Lambeck, R
Albinana, AP
Wu, XQ
Cao, CY
Bauch, H
Montagner, F
AF Battles, Douglas
Lambeck, Robert
Albinana, Abelardo Perez
Wu, Xiangqian
Cao, Changyong
Bauch, Helmut
Montagner, Francois
BE Strojnik, M
Paez, G
TI The Evolution of the Performance of the AVHRR, HIRS and AMSU-A
Instruments on board MetOp-A after over Five Years in Orbit
SO INFRARED REMOTE SENSING AND INSTRUMENTATION XX
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Infrared Remote Sensing and Instrumentation XX
CY AUG 13-14, 2012
CL San Diego, CA
SP SPIE
DE Satellites; Weather; Instruments
AB It is well known that the varying geometrical relationships between the Sun and the Earth throughout the year affect to some degree the performance of the instruments onboard Earth orbiting satellites. Following the commissioning of MetOp-A, EUMETSAT and NOAA have continued monitoring the long term trends in in-orbit performance of AVHRR, HIRS and AMSU-A. The data acquired since the launch of the satellite has allowed studying how the yearly seasonal variations, as well as aging, have affected the instrument performance. This paper presents the evolution of the performance of the AVHRR, HIRS and AMSU-A for more than five years since the launch of the MetOp-A satellite.
C1 [Battles, Douglas] HE Space Operat Inc, Houston, TX 77058 USA.
[Lambeck, Robert] MEI Technol Inc, Lanham, MD USA.
[Albinana, Abelardo Perez] European Space Agcy ESTEC, Noordwijk, Netherlands.
[Wu, Xiangqian; Cao, Changyong] NOAA NESDIS, Camp Springs, MD USA.
[Bauch, Helmut] VEGA Space GmbH, Darmstadt, Germany.
[Montagner, Francois] EUMETSAT, Darmstadt, Germany.
RP Battles, D (reprint author), HE Space Operat Inc, Houston, TX 77058 USA.
RI Wu, Xiangqian/F-5634-2010; Cao, Changyong/F-5578-2010
OI Wu, Xiangqian/0000-0002-7804-5650;
NR 10
TC 0
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U1 0
U2 0
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-9228-9
J9 PROC SPIE
PY 2012
VL 8511
AR 85110P
DI 10.1117/12.929133
PG 14
WC Remote Sensing; Optics
SC Remote Sensing; Optics
GA BCZ40
UT WOS:000312165000021
ER
PT S
AU Meirer, F
Demenev, E
Giubertoni, D
Gennaro, S
Vanzetti, L
Pepponi, G
Bersani, M
Sahiner, MA
Steinhauser, G
Foad, MA
Woicik, JC
Mehta, A
Pianetta, P
AF Meirer, F.
Demenev, E.
Giubertoni, D.
Gennaro, S.
Vanzetti, L.
Pepponi, G.
Bersani, M.
Sahiner, M. A.
Steinhauser, G.
Foad, M. A.
Woicik, J. C.
Mehta, A.
Pianetta, P.
BE Pelaz, L
Santos, I
Duffy, R
Torregrosa, F
Bourdelle, K
TI Formation Of Arsenic Rich Silicon Oxide Under Plasma Immersion Ion
Implantation And Laser Annealing
SO ION IMPLANTATION TECHNOLOGY 2012
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 19th International Conference on Ion Implantation Technology (IIT)
CY JUN 25-29, 2012
CL Valladolid, SPAIN
SP Adv Ion Beam Technol, Inc, Appl Mat, Inc, ATMI, Axcelis Technologies, Inc, CORE Syst, Elmet Technologies, Inc, Evans Analyt Grp LLC, Excico, High Voltage Engn Europa B V, IBS, NISSIN Ion Equipement Co Ltd, Plansee-Electrograph, Praxair, Inc, Probion Anal, SemEquip, Inc/Ceradyne, SEN Corp
DE Arsenic; Silicon; Plasma Immersion Ion Implantation; Laser Annealing;
SIMS; EXAFS; XPS
ID SHALLOW; SI
AB Samples produced by plasma immersion ion implantation of Arsenic in Silicon using a non-pulsed plasma source and subsequent laser annealing were investigated with respect to As depth distribution, oxide thickness, and As local order using SIMS, XPS, INAA and EXAFS analysis. A surface layer (similar to 10 nm), was identified as an As-rich Si oxide formed after implantation. The thickness of this layer was found to be larger for samples annealed using a low thermal budget up to a threshold where probably melting occurred. Dopant depth profile was re-distributed whereas the final oxide film of these samples showed thicknesses of a few nm. The retained As dose exhibited an apparent drastic increase. A hypothesis for the processes involved is presented based on experimental evidence.
C1 [Meirer, F.; Demenev, E.; Giubertoni, D.; Gennaro, S.; Vanzetti, L.; Pepponi, G.; Bersani, M.] Fdn Bruno Kessler, Ctr Mat & Microsyst, I-38123 Povo, Trento, Italy.
[Sahiner, M. A.] Seton Hall Univ, Dept Phys, S Orange, NJ 07079 USA.
[Steinhauser, G.] Vienna Univ Technol, Inst Atom, A-1020 Vienna, Austria.
[Foad, M. A.] Appl Mat Inc, Santa Clara, CA 95052 USA.
[Woicik, J. C.] Natl Inst Stand & Technol, Gaithersburg, MD 20899 USA.
[Mehta, A.; Pianetta, P.] Stanford Synchrotron Radiat Lightsource, SLAC, Stanford, CA 94025 USA.
RP Meirer, F (reprint author), Fdn Bruno Kessler, Ctr Mat & Microsyst, I-38123 Povo, Trento, Italy.
RI Steinhauser, Georg/O-7283-2014; Meirer, Florian/H-7642-2016;
OI Steinhauser, Georg/0000-0002-6114-5890; Meirer,
Florian/0000-0001-5581-5790; Giubertoni, Damiano/0000-0001-8197-8729;
Pepponi, Giancarlo/0000-0002-7397-1946
NR 13
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U1 0
U2 6
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-1109-8
J9 AIP CONF PROC
PY 2012
VL 1496
BP 183
EP 188
DI 10.1063/1.4766520
PG 6
WC Engineering, Electrical & Electronic; Physics, Applied
SC Engineering; Physics
GA BCZ36
UT WOS:000312160700043
ER
PT J
AU Rice, CA
Duda, JJ
Greene, CM
Karr, JR
AF Rice, Casimir A.
Duda, Jeffrey J.
Greene, Correigh M.
Karr, James R.
TI Geographic Patterns of Fishes and Jellyfish in Puget Sound Surface
Waters
SO MARINE AND COASTAL FISHERIES
LA English
DT Article
ID JUVENILE CHINOOK SALMON; GELATINOUS ZOOPLANKTON; PELAGIC COELENTERATES;
TROPHIC INTERACTIONS; REDUNDANCY ANALYSIS; BERING-SEA; FOOD-WEB;
ECOSYSTEM; CTENOPHORES; WASHINGTON
AB We explored patterns of small pelagic fish assemblages and biomass of gelatinous zooplankton (jellyfish) in surface waters across four oceanographic subbasins of greater Puget Sound. Our study is the first to collect data documenting biomass of small pelagic fishes and jellyfish throughout Puget Sound; sampling was conducted opportunistically as part of a juvenile salmon survey of daytime monthly surface trawls at 52 sites during May-August 2003. Biomass composition differed spatially and temporally, but spatial differences were more distinct. Fish dominated in the two northern basins of Puget Sound, whereas jellyfish dominated in the two southern basins. Absolute and relative abundance of jellyfish, hatchery Chinook salmon Oncorhynchus tshawytscha, and chum salmon O. keta decreased with increasing latitude, whereas the absolute and relative abundance of most fish species and the average fish species richness increased with latitude. The abiotic factors with the strongest relationship to biomass composition were latitude, water clarity, and sampling date. Further study is needed to understand the spatial and temporal heterogeneity in the taxonomic composition we observed in Puget Sound surface waters, especially as they relate to natural and anthropogenic influences.
C1 [Rice, Casimir A.] Natl Ocean & Atmospher Adm Fisheries, Mukilteo Res Stn, Mukilteo, WA 98275 USA.
[Duda, Jeffrey J.] US Geol Survey, Western Fisheries Res Ctr, Seattle, WA 98115 USA.
[Greene, Correigh M.] NOAA, NW Fisheries Sci Ctr, Seattle, WA 98112 USA.
[Karr, James R.] Univ Washington, Sch Aquat & Fishery Sci, Seattle, WA 98195 USA.
RP Rice, CA (reprint author), Natl Ocean & Atmospher Adm Fisheries, Mukilteo Res Stn, 10 Pk Ave,Bldg B, Mukilteo, WA 98275 USA.
EM casimir.rice@noaa.gov
RI Duda, Jeffrey/A-7132-2009
OI Duda, Jeffrey/0000-0001-7431-8634
FU Seattle City Light; U.S. Army Corps of Engineers
FX We thank the Environmental Conservation Division of the Northwest
Fisheries Science Center (National Oceanic and Atmospheric
Administration, Seattle) for providing research vessels and field staff,
and we also thank the Western Fisheries Research Center (U.S. Geological
Survey, Seattle) for providing field staff. Seattle City Light and the
U.S. Army Corps of Engineers provided supplemental funding. J. Purcell
and T. Parsons gave helpful comments on an early draft of the
manuscript; R. Brodeur, B. Feist, P. Hershberger, P. Roni, T. Collier,
C. Mills, F. Boero, A. Overton, and three anonymous reviewers provided
thorough and constructive reviews. K. Kloehn helped create the map, and
C. Stehr and W. Reichert assisted with the review process. The use of
trade, firm, or corporation names does not constitute endorsement by the
U.S. government.
NR 70
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U1 0
U2 19
PU TAYLOR & FRANCIS INC
PI PHILADELPHIA
PA 520 CHESTNUT STREET, STE 850, PHILADELPHIA, PA 19106 USA
SN 1942-5120
J9 MAR COAST FISH
JI Mar. Coast. Fish.
PY 2012
VL 4
IS 1
BP 117
EP 128
DI 10.1080/19425120.2012.680403
PG 12
WC Fisheries; Marine & Freshwater Biology
SC Fisheries; Marine & Freshwater Biology
GA 049TX
UT WOS:000312007400010
ER
PT J
AU Lombardi-Carlson, LA
Cook, M
Lyon, H
Barnett, B
Bullock, L
AF Lombardi-Carlson, Linda A.
Cook, Melissa
Lyon, Hope
Barnett, Beverly
Bullock, Lew
TI A Description of Age, Growth, and Reproductive Life History Traits of
Scamps from the Northern Gulf of Mexico
SO MARINE AND COASTAL FISHERIES
LA English
DT Article
ID MYCTEROPERCA-PHENAX; OOCYTE GROWTH; FISHES; TELEOSTS; GROUPER; SIZE;
HERMAPHRODITISM; SERRANIDAE; ATLANTIC; CRITERIA
AB We present the first comprehensive description of the age, growth, and reproductive life history traits of scamps Mycteroperca phenax from the northern Gulf of Mexico. Scamps were collected from commercial and recreational vessels along the northern Gulf of Mexico in 1972-2002. Scamp age was determined using thin transverse sections of sagittal otoliths; growth increments were difficult to interpret, and age was estimated for only 85% of the 5,383 otolith sections we examined. Scamps sampled from the commercial and recreational fisheries ranged from 109 to 890 mm fork length (FL) and from 1 to 31 years of age. We fitted annual ages and observed FLs to two different von Bertalanffy growth models (standard and size-modified models). The size-modified model considered the effect of the size limit but resulted in growth parameters similar to those of the standard model (asymptotic length L-infinity = 772 mm FL; growth rate k = 0.09 mm/year). Histology confirmed that scamps are protogynous hermaphrodites; gonadosomatic index data indicated a prolonged spawning season (January-June, peaking in April). Females reached maturity at a median FL of 332 mm and a median age of 2 years. Scamp sizes sampled from the fisheries were similar for males (221-870 mm FL) and females (109-878 mm FL), but the larger size-classes and older age-classes were mostly composed of males. The scamp population in the northern Gulf of Mexico has never been assessed, and our data provide highly valuable model inputs.
C1 [Lombardi-Carlson, Linda A.; Lyon, Hope; Barnett, Beverly] Natl Marine Fisheries Serv, Panama City, FL 32408 USA.
[Cook, Melissa] Natl Marine Fisheries Serv, Pascagoula, MS 39567 USA.
[Bullock, Lew] Florida Fish & Wildlife Conservat Commiss, Fish & Wildlife Res Inst, St Petersburg, FL 33701 USA.
RP Lombardi-Carlson, LA (reprint author), Natl Marine Fisheries Serv, 3500 Delwood Beach Rd, Panama City, FL 32408 USA.
EM linda.lombardi@noaa.gov
FU U.S. Department of Commerce
FX Our sincere gratitude is extended to the Florida Fish and Wildlife
Conservation Commission, Fish and Wildlife Research Institute, St.
Petersburg, for providing the data collected in the earliest years and
to Mark Godcharles (National Marine Fisheries Service, Southeast
Regional Office; retired) as the co-project investigator for that
period. We also thank the reviewers and subject editor for their
comments and advice. Opinions expressed herein are those of the authors
and do not imply endorsement by the NOAA National Marine Fisheries
Service. Financial support was provided by the U.S. Department of
Commerce.
NR 44
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U1 2
U2 10
PU TAYLOR & FRANCIS INC
PI PHILADELPHIA
PA 325 CHESTNUT ST, SUITE 800, PHILADELPHIA, PA 19106 USA
SN 1942-5120
J9 MAR COAST FISH
JI Mar. Coast. Fish.
PY 2012
VL 4
IS 1
BP 129
EP 144
DI 10.1080/19425120.2012.675965
PG 16
WC Fisheries; Marine & Freshwater Biology
SC Fisheries; Marine & Freshwater Biology
GA 049TX
UT WOS:000312007400011
ER
PT J
AU Bass, AL
Giannico, GR
Brooks, GT
AF Bass, Arthur L.
Giannico, Guillermo R.
Brooks, Gabriel T.
TI Performance of a Full-Duplex Passive Integrated Transponder (PIT)
Antenna System in Estuarine Channels
SO MARINE AND COASTAL FISHERIES
LA English
DT Article
ID ATLANTIC SALMON; CHINOOK SALMON; RIVER-BASIN; FISH; TAG; MOVEMENTS
AB Passive integrated transponder (PIT) technology is rarely utilized in estuaries due to (1) saline water's attenuation of an antenna's electromagnetic field, (2) rapidly changing water properties and levels, and (3) the challenges of installing and maintaining antennas in silty, brackish conditions. We present methods for the construction and installation of antennas that can detect 12-mm full-duplex PIT tags in salinities up to 3 parts per thousand. We evaluated their reading performance under variable water salinities, temperatures, and depths in the upper estuaries of three streams. We found that water depth, salinity, and temperature were all negatively correlated with antenna current, but that the relative importance of these variables varied depending upon aspects of the antenna deployment. Since our antennas held amperage levels adequate for maintenance of a complete electromagnetic field throughout all test conditions, we suggest that successful detection was more dependent upon the antenna system's coverage of the water column and the swimming path of fish through the antenna system than individual antenna performance. In addition to fish, this technology could be applied to studies of mammals, crustaceans, and particles transported through estuarine channels.
C1 [Bass, Arthur L.; Giannico, Guillermo R.] Oregon State Univ, Dept Fisheries & Wildlife, Corvallis, OR 97331 USA.
[Bass, Arthur L.] Univ Oslo, Dept Biol, Ctr Ecol & Evolutionary Synth, NO-0316 Oslo, Norway.
[Brooks, Gabriel T.] NOAA, Natl Marine Fisheries Serv, NW Fisheries Sci Ctr, Fish Ecol Div, Seattle, WA 98112 USA.
RP Bass, AL (reprint author), Oregon State Univ, Dept Fisheries & Wildlife, 104 Nash Hall, Corvallis, OR 97331 USA.
EM arthurlb@ulrik.uio.no
FU Oregon Watershed Enhancement Board [208-8004-5778]
FX This project was funded by the Oregon Watershed Enhancement Board
research grant 208-8004-5778. The Coos Watershed Association performed
initial fieldwork in Palouse and Larson creeks, and was very generous
with field equipment and support. The following individuals performed
invaluable fieldwork: Adam Weybright, Justin Arriola, Andrew McClary,
John Winkowski, Dave Nelson, and Donald Danesi. Bruce Hansen and Chris
Jordan provided support with antenna production and supplies. Thanks to
Earl Prentice for advice on antenna design and to Daniel Leventhal for
producing the illustrations depicted in Figure 1.
NR 23
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U1 1
U2 7
PU TAYLOR & FRANCIS INC
PI PHILADELPHIA
PA 325 CHESTNUT ST, SUITE 800, PHILADELPHIA, PA 19106 USA
SN 1942-5120
J9 MAR COAST FISH
JI Mar. Coast. Fish.
PY 2012
VL 4
IS 1
BP 145
EP 155
DI 10.1080/19425120.2012.676384
PG 11
WC Fisheries; Marine & Freshwater Biology
SC Fisheries; Marine & Freshwater Biology
GA 049TX
UT WOS:000312007400012
ER
PT J
AU Lake, TRT
Ravana, KR
Saunders, R
AF Lake, Tara R. Trinko
Ravana, Kyle R.
Saunders, Rory
TI Evaluating Changes in Diadromous Species Distributions and Habitat
Accessibility following the Penobscot River Restoration Project
SO MARINE AND COASTAL FISHERIES
LA English
DT Article
ID SHAD ALOSA-SAPIDISSIMA; SALMON SALMO-SALAR; ET-AL. 2005; DAM REMOVAL;
AMERICAN SHAD; SOUTHEASTERN ALASKA; ANADROMOUS FISH; PACIFIC SALMON;
ATLANTIC; STREAMS
AB The Penobscot River basin, covering approximately 22,265 km(2), is the largest river wholly within Maine and the second largest river system in New England. The Penobscot River Restoration Project (PRRP) is a multimillion-dollar endeavor that aims to restore native sea-run fish through the removal of two main-stem dams and improved fish passage at a third dam on the Penobscot River. We used geographical information systems, accounts of historic ranges, and barrier survey data to estimate species-specific distributions and habitat accessibility for 11 diadromous species before and after the proposed restoration. We predict a range of outcomes in terms of expected distribution and accessibility that are largely based on habitat use and life history differences. For 4 out of 11 species (Atlantic sturgeon Acipenser oxyrinchus, shortnose sturgeon A. brevirostrum, Atlantic tomcod Microgadus tomcod, and striped bass Morone saxatillis), the PRRP is anticipated to provide access to 100% of their historic freshwater habitat. However, for alewives Alosa pseudoharengus, approximately 69% of the historic spawning and rearing habitat will remain inaccessible due to the presence of other passage barriers. Our results demonstrate that the PRRP is an important step toward ecosystem recovery in the Penobscot River basin but that other restoration activities will be needed to realize the full potential of the PRRP, particularly for alosines. Further, our results provide the first spatial analysis of diadromous fish distribution and access following the PRRP and serve as the baseline for developing a guiding image for expected diadromous fish population responses following the dam removals.
C1 [Lake, Tara R. Trinko; Ravana, Kyle R.; Saunders, Rory] Natl Marine Fisheries Serv, NOAA, Maine Field Stn, Orono, ME 04473 USA.
RP Lake, TRT (reprint author), Natl Marine Fisheries Serv, NOAA, Maine Field Stn, 17 Godfrey Dr,Suite 1, Orono, ME 04473 USA.
EM tara.trinko@noaa.gov
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U1 7
U2 75
PU TAYLOR & FRANCIS INC
PI PHILADELPHIA
PA 520 CHESTNUT STREET, STE 850, PHILADELPHIA, PA 19106 USA
SN 1942-5120
J9 MAR COAST FISH
JI Mar. Coast. Fish.
PY 2012
VL 4
IS 1
BP 284
EP 293
DI 10.1080/19425120.2012.675971
PG 10
WC Fisheries; Marine & Freshwater Biology
SC Fisheries; Marine & Freshwater Biology
GA 049TX
UT WOS:000312007400023
ER
PT J
AU O'Connor, MP
Juanes, F
McGarigal, K
Gaurin, S
AF O'Connor, Megan P.
Juanes, Francis
McGarigal, Kevin
Gaurin, Steven
TI Findings on American Shad and Striped Bass in the Hudson River Estuary:
A Fish Community Study of the Long-Term Effects of Local Hydrology and
Regional Climate Change
SO MARINE AND COASTAL FISHERIES
LA English
DT Article
ID ALOSA-SAPIDISSIMA; MORONE-SAXATILIS; WATER TEMPERATURE; ATLANTIC COAST;
VARIABILITY; MIGRATION; OSCILLATION; RECRUITMENT; DISCHARGE; PATTERNS
AB It has been hypothesized that climate change is an underlying factor in determining fish abundances in the Hudson River estuary (HRE). To study the effects of hydrology and climate on the HRE fish community, we applied multivariate statistical methods to data on 20 species-life history stages collected from 1974 to 2005. We confirm that the HRE fish community has changed over this period. These changes are correlated with local hydrology (freshwater flow and water temperature) and regional climate (the Atlantic Multidecadal Oscillation [AMO] and North Atlantic Oscillation). We found that the abundances of striped bass Morone saxatilis larval stages are positively correlated with high freshwater flows and those of juvenile American shad Alosa sapidissima negatively correlated with the AMO or warmer sea surface temperatures. Our findings suggest that climate-related variability affects HRE juvenile shad abundances and that management strategies for this declining species should include the implications of climate change.
C1 [O'Connor, Megan P.; Juanes, Francis; McGarigal, Kevin] Univ Massachusetts, Dept Environm Conservat, Amherst, MA 01003 USA.
[Gaurin, Steven] Univ Massachusetts, Dept Geosci, Amherst, MA 01003 USA.
RP O'Connor, MP (reprint author), NOAA, Narragansett Lab, 28 Tarzwell Dr, Narragansett, RI 02882 USA.
EM megan.oconnor@noaa.gov
FU NOAA's NERR Graduate fellowship program; River Foundation Graduate
Research Fellowship program
FX We would like to thank John Carnright from Dynegy for providing us with
a copy of the 2005 Utilities' Year Class Report. We'd also like to thank
John Young from ASA for the Poughkeepsie Water Treatment facility's
daily water temperature data and for help understanding the fish
abundance index calculation. Funding was provided through NOAA's NERR
Graduate fellowship program and Hudson River Foundation Graduate
Research Fellowship program to MO'C.
NR 50
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U1 5
U2 36
PU TAYLOR & FRANCIS INC
PI PHILADELPHIA
PA 325 CHESTNUT ST, SUITE 800, PHILADELPHIA, PA 19106 USA
SN 1942-5120
J9 MAR COAST FISH
JI Mar. Coast. Fish.
PY 2012
VL 4
IS 1
BP 327
EP 336
DI 10.1080/19425120.2012.675970
PG 10
WC Fisheries; Marine & Freshwater Biology
SC Fisheries; Marine & Freshwater Biology
GA 049TX
UT WOS:000312007400027
ER
PT J
AU Roy, EM
Quattro, JM
Greig, TW
AF Roy, E. M.
Quattro, J. M.
Greig, T. W.
TI Genetic Management of Black Sea Bass: Influence of Biogeographic
Barriers on Population Structure
SO MARINE AND COASTAL FISHERIES
LA English
DT Article
ID WESTERN NORTH-ATLANTIC; MAXIMUM-LIKELIHOOD-ESTIMATION; SOUTHEASTERN
UNITED-STATES; GULF-OF-MEXICO; MITOCHONDRIAL-DNA; CENTROPRISTIS-STRIATA;
LIFE-HISTORY; COALESCENT APPROACH; CAPE-HATTERAS; LARVAL FISH
AB The black sea bass Centropristis striata is a commercially important perciform fish with a general distribution along the U.S. Atlantic coast from Cape Cod, Massachusetts, to Cape Canaveral, Florida, and in the Gulf of Mexico from Mobile Bay, Alabama, to Tampa Bay, Florida. Currently, black sea bass are managed as three separate stocks: one in the Gulf of Mexico and two along the U.S. Atlantic coast. Fish from the Gulf of Mexico represent a separate subspecies, C. striata melana. The Atlantic subspecies, C. striata striata, is divided into two management units (separated at Cape Hatteras, North Carolina) based on the hypothesis that this subspecies comprises two distinct populations exhibiting life history and morphometric differences. To further investigate this differentiation, we employed mitochondrial sequence data to test whether genetic differences are observed among the three managements units. The DNA sequence analysis revealed a significant amount of genetic variability partitioned among samples from the three management areas. Similar results were observed when the analyses were confined to the two Atlantic coast management units. These results support the designation of two distinct management units for black sea bass along the U.S. Atlantic coast.
C1 [Roy, E. M.; Greig, T. W.] Coll Charleston, Grice Marine Lab, Charleston, SC 29412 USA.
[Quattro, J. M.; Greig, T. W.] Natl Ocean Serv, NOAA, Natl Ctr Coastal Ocean Sci, Ctr Coastal Environm Hlth & Biomol Res Charleston, Charleston, SC 29412 USA.
[Quattro, J. M.] Univ S Carolina, Dept Biol Sci, Marine Sci Program, Sch Environm, Columbia, SC 29208 USA.
RP Greig, TW (reprint author), Coll Charleston, Grice Marine Lab, 205 Ft Johnson Rd, Charleston, SC 29412 USA.
EM thomas.greig@noaa.gov
FU Grice Marine Laboratory, College of Charleston; South Carolina
Department of Natural Resources (SCDNR); South Carolina Sea Grant
[R/MT-5]; Marine Fisheries Initiative grant [NA07NMF4330118]; National
Oceanic and Atmospheric Administration (National Ocean Service,
Charleston, South Carolina)
FX This work was supported by funding from the Grice Marine Laboratory,
College of Charleston; the National Oceanic and Atmospheric
Administration (National Ocean Service, Charleston, South Carolina); and
the South Carolina Department of Natural Resources (SCDNR). Additional
support was provided by the South Carolina Sea Grant (grant number
R/MT-5) and a Marine Fisheries Initiative grant (grant number
NA07NMF4330118) awarded to J.M.Q. We thank Robert Chapman, Bert Ely,
Nathanial Jue, Marcus Zokan, Rudee Inlet Charters (Virginia Beach,
Virginia), and the SCDNR for assistance in sample collection. Kellee
James, John Bemis, and Darren Wray provided technical assistance.
Special thanks are extended to Mike Janech, Tony Harold, and Bill
Roumillat for their comments and discussion. This manuscript was
improved by the comments and suggestions of two anonymous reviewers.
This publication does not constitute an endorsement of any commercial
product or an intent to express an opinion beyond scientific or other
results obtained by the National Oceanic and Atmospheric Administration.
NR 46
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PU TAYLOR & FRANCIS INC
PI PHILADELPHIA
PA 325 CHESTNUT ST, SUITE 800, PHILADELPHIA, PA 19106 USA
SN 1942-5120
J9 MAR COAST FISH
JI Mar. Coast. Fish.
PY 2012
VL 4
IS 1
BP 391
EP 402
DI 10.1080/19425120.2012.675983
PG 12
WC Fisheries; Marine & Freshwater Biology
SC Fisheries; Marine & Freshwater Biology
GA 049TX
UT WOS:000312007400032
ER
PT J
AU Roegner, GC
McNatt, R
Teel, DJ
Bottom, DL
AF Roegner, G. Curtis
McNatt, Regan
Teel, David J.
Bottom, Daniel L.
TI Distribution, Size, and Origin of Juvenile Chinook Salmon in
Shallow-Water Habitats of the Lower Columbia River and Estuary,
2002-2007
SO MARINE AND COASTAL FISHERIES
LA English
DT Article
ID ONCORHYNCHUS-TSHAWYTSCHA; FRASER-RIVER; BRITISH-COLUMBIA; PACIFIC
SALMON; LIFE-HISTORY; OREGON; MIGRATION; RESIDENCY; SURVIVAL; BASIN
AB We monitored fish assemblages monthly at estuarine and tidal freshwater sites in the lower Columbia River and estuary from January 2002 through September 2007 in order to identify specific salmon stocks and migration stages that may benefit from habitat restoration initiatives. We report landscape-scale and seasonal variation in abundance, size, hatchery production (based on adipose fin clips), and genetic stock of origin of juvenile Chinook salmon Oncorhynchus tshawytscha. From fish implanted with coded wire tags (CWTs), we also determined the sites of release and inferred migration patterns. Chinook salmon were found in diverse life history stages and forms, including fry migrants, fingerlings, and (fewer) yearlings. Abundance increased in February and decreased in August, but salmon were present in all months each year. Spatial gradients in abundance and size were strong, with fewer but larger fish in brackish than in tidal freshwater zones. Overall, 30% of the Chinook salmon measured were fry (<= 60 mm) that were likely naturally produced fish. These occurred at higher mean monthly proportions in tidal freshwater than in estuarine zones. In contrast, most larger fish were probably raised in hatcheries. Genetic stock assessment revealed that the majority of the Chinook salmon analyzed were from fall-run stock groups originating in the lower Columbia River, with 15% originating from other stock groups. Of these minority contributors, about 6% were identified as upper Columbia River summer-fall-run Chinook salmon while seven other stock groups accounted for the remainder, including 3% from transplants originating in southern Oregon's Rogue River. Recaptures of tagged fish revealed maximum migration times of 143 d for subyearlings and 52 d for yearlings, and both CWT and genetic data indicated that fall Chinook salmon from coastal rivers occasionally entered the estuary. These data demonstrated a widespread temporal and spatial distribution of subyearling Chinook salmon in shallow-water habitats of the lower Columbia River and estuary.
C1 [Roegner, G. Curtis; McNatt, Regan; Teel, David J.; Bottom, Daniel L.] Natl Marine Fisheries Serv, NOAA, NW Fisheries Sci Ctr, Seattle, WA 98112 USA.
RP Roegner, GC (reprint author), Natl Marine Fisheries Serv, NOAA, NW Fisheries Sci Ctr, 2725 Montlake Blvd E, Seattle, WA 98112 USA.
EM curtis.roegner@noaa.gov
FU U.S. Army Corps of Engineers; National Marine Fisheries Service
FX We thank the many beach seine survey participants, most notably P.
Bentley, L. Campbell, S. Hinton, G. McCabe, and R. Nelson. Important
contributions to the development of the study were made by P. Moran and
T. Lundrigan, and D. Kuligowski processed the genetics data. We also
thank S. Blankenship and S. Narum for providing unpublished baseline
genetic data. The manuscript benefited from reviews by J. Butzerin, E.
Dawley, R. Ledgerwood, and J. Scheurer. This research was funded by the
U.S. Army Corps of Engineers and the National Marine Fisheries Service.
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PI PHILADELPHIA
PA 325 CHESTNUT ST, SUITE 800, PHILADELPHIA, PA 19106 USA
SN 1942-5120
J9 MAR COAST FISH
JI Mar. Coast. Fish.
PY 2012
VL 4
IS 1
BP 450
EP 472
DI 10.1080/19425120.2012.675982
PG 23
WC Fisheries; Marine & Freshwater Biology
SC Fisheries; Marine & Freshwater Biology
GA 049TX
UT WOS:000312007400036
ER
PT J
AU Norton, SL
Wiley, TR
Carlson, JK
Frick, AL
Poulakis, GR
Simpfendorfer, CA
AF Norton, Shelley L.
Wiley, Tonya R.
Carlson, John K.
Frick, Amanda L.
Poulakis, Gregg R.
Simpfendorfer, Colin A.
TI Designating Critical Habitat for Juvenile Endangered Smalltooth Sawfish
in the United States
SO MARINE AND COASTAL FISHERIES
LA English
DT Article
ID PRISTIS-PECTINATA; NURSERY AREAS; FLORIDA; CONSERVATION
AB In 2003, the U.S. distinct population segment of smalltooth sawfish Pristis pectinata was listed as endangered under the U.S. Endangered Species Act (ESA). At that time, little was known about its habitat use patterns and, although required as part of the ESA, critical habitat could not be officially designated. Subsequently, studies were conducted that identified some of the specific habitats and environmental conditions important for the species. Facilitating recruitment into the adult population by protecting the species' nurseries was identified in the recovery plan as the key conservation objective, which would be supported by the designation of critical habitat. The location of nurseries was determined by applying published criteria developed for identifying elasmobranch nursery areas to a decade of encounter data. These largely nontraditional data were composed primarily of encounters voluntarily reported by the public to members of the recovery team. The nursery habitats essential to the conservation of the species were identified as those adjacent to red mangroves Rhizophora mangle and euryhaline habitats with water depths <= 0.9 m. Ultimately, two broad areas in southwest Florida that contain these habitats were designated as critical habitat for juvenile smalltooth sawfish: the Charlotte Harbor Estuary unit (896 km(2)) and the Ten Thousand Islands/ Everglades unit (2,505 km(2)).
C1 [Carlson, John K.] Fisheries Serv, NOAA, SE Fisheries Sci Ctr, Panama City Lab, Panama City, FL 32408 USA.
[Norton, Shelley L.; Frick, Amanda L.] Fisheries Serv, NOAA, SE Reg Off, Protected Resource Div, St Petersburg, FL 33701 USA.
[Wiley, Tonya R.] Haven Worth Consulting, Houston, TX 77003 USA.
[Poulakis, Gregg R.] Florida Fish & Wildlife Conservat Commiss, Fish & Wildlife Res Inst, Charlotte Harbor Field Lab, Port Charlotte, FL 33954 USA.
[Simpfendorfer, Colin A.] James Cook Univ, Sch Earth & Environm Sci, Ctr Sustainable Trop Fisheries & Aquaculture, Townsville, Qld 4811, Australia.
RP Carlson, JK (reprint author), Fisheries Serv, NOAA, SE Fisheries Sci Ctr, Panama City Lab, 3500 Delwood Beach Rd, Panama City, FL 32408 USA.
EM john.carlson@noaa.gov
RI Simpfendorfer, Colin/G-9681-2011; CSTFA, ResearcherID/P-1067-2014
OI Simpfendorfer, Colin/0000-0002-0295-2238;
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PI PHILADELPHIA
PA 530 WALNUT STREET, STE 850, PHILADELPHIA, PA 19106 USA
SN 1942-5120
J9 MAR COAST FISH
JI Mar. Coast. Fish.
PY 2012
VL 4
IS 1
BP 473
EP 480
DI 10.1080/19425120.2012.676606
PG 8
WC Fisheries; Marine & Freshwater Biology
SC Fisheries; Marine & Freshwater Biology
GA 049TX
UT WOS:000312007400037
ER
PT J
AU Sturdevant, MV
Orsi, JA
Fergusson, EA
AF Sturdevant, M. V.
Orsi, J. A.
Fergusson, E. A.
TI Diets and Trophic Linkages of Epipelagic Fish Predators in Coastal
Southeast Alaska during a Period of Warm and Cold Climate Years,
1997-2011
SO MARINE AND COASTAL FISHERIES
LA English
DT Article
ID JUVENILE PACIFIC SALMON; PRINCE-WILLIAM-SOUND; HERRING CLUPEA-PALLASI;
MARINE WATERS; FORAGE FISH; COMMUNITY REORGANIZATION;
ONCORHYNCHUS-GORBUSCHA; GASTRIC EVACUATION; ABUNDANCE PATTERNS;
CALIFORNIA CURRENT
AB This study identifies important trophic links for epipelagic marine fish predators in Southeast Alaska to improve understanding of marine ecosystem dynamics in response to climate change. Fish predators can be viewed as autonomous samplers whose diets should integrate the available prey taxa commensurate with environmental conditions. We examined fish predators from annual (1997-2011) surveys conducted in May to September by the Southeast Coastal Monitoring (SECM) project of Auke Bay Laboratories in the marine waters of Southeast Alaska. This project has emphasized long-term monitoring of strait and coastal marine habitats used by juvenile Pacific salmon Oncorhynchus spp. and associated epipelagic fishes to understand how environmental variation affects the sustainability of salmon resources. From 1,295 surface trawl hauls, trophic links were identified for 2,473 fish representing 19 predator species, principally adult and immature salmon, immature walleye pollock Theragra chalcogramma, and spiny dogfish Squalus acanthias. The most common fish prey consumed were fish larvae, juvenile salmon, Pacific herring Clupea pallasii, capelin Mallotus villosus, walleye pollock, lanternfishes (Myctophidae), and Pacific sand lance Ammodytes hexapterus, whereas the most common invertebrate prey consumed were euphausiids, decapod larvae, pteropods, and amphipods. This study describes the degree of piscivory, incidence of juvenile salmon prey, and frequency and weight composition of prey in the diets of epipelagic fish predators, but it did not clearly detect an effect of warm-versus-cold climate years on the diets of key planktivorous or piscivorous predators over the 15-year time series. Identifying the persistence of trophic links in epipelagic waters over time is important because climate-related changes in the upper water column have the potential to impact Southeast Alaska marine ecosystem dynamics and the productivity of important regional fisheries by altering key prey resources and trophic interactions.
C1 [Sturdevant, M. V.; Orsi, J. A.; Fergusson, E. A.] NOAA, Alaska Fisheries Sci Ctr, Auke Bay Labs, Ted Stevens Marine Res Inst, Juneau, AK 99801 USA.
RP Sturdevant, MV (reprint author), NOAA, Alaska Fisheries Sci Ctr, Auke Bay Labs, Ted Stevens Marine Res Inst, 17109 Point Lena Loop Rd, Juneau, AK 99801 USA.
EM molly.sturdevant@noaa.gov
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PI PHILADELPHIA
PA 325 CHESTNUT ST, SUITE 800, PHILADELPHIA, PA 19106 USA
SN 1942-5120
J9 MAR COAST FISH
JI Mar. Coast. Fish.
PY 2012
VL 4
IS 1
BP 526
EP 545
DI 10.1080/19425120.2012.694838
PG 20
WC Fisheries; Marine & Freshwater Biology
SC Fisheries; Marine & Freshwater Biology
GA 049TX
UT WOS:000312007400041
ER
PT J
AU Baremore, IE
Hale, LF
AF Baremore, Ivy E.
Hale, Loraine F.
TI Reproduction of the Sandbar Shark in the Western North Atlantic Ocean
and Gulf of Mexico
SO MARINE AND COASTAL FISHERIES
LA English
DT Article
ID CARCHARHINUS-PLUMBEUS NARDO; LIFE-HISTORY TRAITS; GROWTH; BIOLOGY; AGE;
POPULATION; BAY; NURSERY; SIZE; CHONDRICHTHYES
AB The reproductive parameters of 1,194 sandbar sharks Carcharhinus plumbeus (701 females, 493 males) were examined for stock assessment. Size and age at 50% maturity was 151.6 cm FL (12.1 years) for males and 154.9 cm (13.1 years) for females; however, the size and age at which 50% of females were in maternal condition was 162.0 cm FL (15.5 years). Males and females showed distinct seasonal reproduction patterns, with peak mating and parturition occurring from April through July. The majority of near-term pregnant and postpartum females were observed in the Florida Keys, which is an extension of the previously reported nursery grounds for sandbar sharks in the western North Atlantic Ocean. Female fecundity averaged 8.0 pups, and there was a significant increase in fecundity with length and age. The ovarian cycle is at least biennial, although there is evidence that some females have triennial cycles.
C1 [Baremore, Ivy E.; Hale, Loraine F.] Natl Marine Fisheries Serv, Panama City Lab, Panama City, FL 32408 USA.
RP Baremore, IE (reprint author), Natl Marine Fisheries Serv, Panama City Lab, 3500 Delwood Beach Rd, Panama City, FL 32408 USA.
EM ivy.baremore@noaa.gov
NR 52
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U1 0
U2 16
PU TAYLOR & FRANCIS INC
PI PHILADELPHIA
PA 325 CHESTNUT ST, SUITE 800, PHILADELPHIA, PA 19106 USA
SN 1942-5120
J9 MAR COAST FISH
JI Mar. Coast. Fish.
PY 2012
VL 4
IS 1
BP 560
EP 572
DI 10.1080/19425120.2012.700904
PG 13
WC Fisheries; Marine & Freshwater Biology
SC Fisheries; Marine & Freshwater Biology
GA 049TX
UT WOS:000312007400043
ER
PT J
AU Sluis, MZ
Barnett, BK
Patterson, WF
Cowan, JH
Shiller, AM
AF Sluis, Michelle Zapp
Barnett, Beverly K.
Patterson, William F., III
Cowan, James H., Jr.
Shiller, Alan M.
TI Discrimination of Juvenile Red Snapper Otolith Chemical Signatures from
Gulf of Mexico Nursery Regions
SO MARINE AND COASTAL FISHERIES
LA English
DT Article
ID LUTJANUS-CAMPECHANUS; SITE FIDELITY; ELEMENTAL FINGERPRINTS;
POPULATION-STRUCTURE; MITOCHONDRIAL-DNA; MISSISSIPPI RIVER; ARTIFICIAL
REEFS; BLUEFIN TUNA; CHEMISTRY; FISH
AB Age-0 red snapper Lutjanus campechanus from the 2005-2007 year-classes were sampled in six regions across the Gulf of Mexico (Gulf) to develop nursery signatures from otolith element : Ca ratios (Ba:Ca, Mg:Ca, Mn:Ca, Sr:Ca, and Li:Ca) and stable isotope delta values (delta C-13 and delta O-18). Element : Ca ratios were analyzed with sector field inductively coupled plasma mass spectrometry on dissolved right sagittae; isotope ratio mass spectrometry was employed to analyze pulverized left otoliths for delta C-13 and delta O-18. Otolith chemical signatures were significantly different among regions in each year. Year-class-specific quadratic discriminant function analysis (QDFA) distinguished nursery regions with an accuracy of 82% for 2005, 70% for 2006, and 72% for 2007. However, samples were not obtained from all six study regions in 2005 and 2006. A QDFA of all year-classes combined produced an overall classification accuracy of 70%, thus indicating that region-specific otolith chemical signatures from adjacent sampling years could be used as surrogates for regions where samples were not obtained in a given year.
C1 [Sluis, Michelle Zapp; Cowan, James H., Jr.] Louisiana State Univ, Dept Oceanog & Coastal Sci, Baton Rouge, LA 70803 USA.
[Barnett, Beverly K.] Natl Marine Fisheries Serv, SE Fisheries Sci Ctr, Panama City Lab, Panama City Beach, FL 32408 USA.
[Patterson, William F., III] Univ W Florida, Dept Biol, Pensacola, FL 32541 USA.
[Shiller, Alan M.] Univ So Mississippi, Dept Marine Sci, Stennis Space Ctr, MS 39529 USA.
RP Sluis, MZ (reprint author), Louisiana State Univ, Dept Oceanog & Coastal Sci, Coast & Environm Bldg, Baton Rouge, LA 70803 USA.
EM michellesluis@gmail.com
OI Shiller, Alan/0000-0002-2068-7909
FU Marine Fisheries Initiative [NA05NMF4331072]
FX This research was supported by the Marine Fisheries Initiative under
Grant Number NA05NMF4331072 awarded to W. Patterson and J. Cowan. We are
especially grateful to A. DeBose and K. Johnson for facilitating
collection of age-0 red snapper during the NMFS Fall Groundfish Survey
in the northern Gulf; J. Mareska for providing additional NCG juvenile
samples; G. Martinez for sampling fish in the MEX1 and MEX2 regions; E.
Scott-Denton (NMFS), J. Jamison (Gulf and South Atlantic Fisheries
Foundation), and shrimp observers for their invaluable help in procuring
age-0 red snapper samples from along the west Florida shelf; A.
Hamilton, W. Ingram, and B. Mahmoudi for attempting to collect age-0
fish during the NMFS Small Pelagics Survey and the Fish and Wildlife
Research Institute Baitfish Survey along the west Florida shelf; Z. Chen
for assistance in running the SF-ICP mass spectrometry samples; D.
Winter for running the isotope ratio mass spectrometry samples; and two
anonymous reviewers for helpful feedback that improved the manuscript.
We also thank B. Kline and A. Fischer for their assistance in the
laboratory.
NR 45
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PI PHILADELPHIA
PA 530 WALNUT STREET, STE 850, PHILADELPHIA, PA 19106 USA
SN 1942-5120
J9 MAR COAST FISH
JI Mar. Coast. Fish.
PY 2012
VL 4
IS 1
BP 587
EP 598
DI 10.1080/19425120.2012.703163
PG 12
WC Fisheries; Marine & Freshwater Biology
SC Fisheries; Marine & Freshwater Biology
GA 049TX
UT WOS:000312007400045
ER
PT S
AU Patrick, HJ
Zarobila, CJ
Germer, TA
Ying, VA
Cooksey, CA
Tsai, BK
AF Patrick, Heather J.
Zarobila, Clarence J.
Germer, Thomas A.
Ying, Victor A.
Cooksey, Catherine A.
Tsai, Benjamin K.
BE Hanssen, LM
TI Tunable Supercontinuum Fiber Laser Source for BRDF Measurements in the
STARR II Gonioreflectometer
SO REFLECTION, SCATTERING, AND DIFFRACTION FROM SURFACES III
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Reflection, Scattering, and Diffraction from Surfaces III
CY AUG 13-16, 2012
CL San Diego, CA
SP SPIE
DE supercontinuum; laser; bidirectional; diffuse; BRDF; reflectance; STARR;
STARR II
AB STARR II is a planned NIST facility for spectral measurements of specular reflectance and diffuse bidirectional reflectance distribution function (BRDF) that is the follow-on to the current NIST STARR (Spectral Tri-function Automated Reference Reflectometer) facility. STARR II will improve and expand on the measurement capabilities of STARR, increasing spectral coverage in the short-wave infrared spectral region and adding out-of-plane BRDF measurement capability. We present characteristics of a tunable light source constructed for STARR II, which is based upon a supercontinuum fiber laser and has a tuning range from 500 nm to 2450 nm, alongside those of the current lamp-based system in STARR. We then discuss considerations for measuring BRDF using this source. The STARR II goniometer will employ an articulated robotic arm to center and orient the sample, and we calculate the transformations from orientation of the sample and receiver to incident and scattering angles for measurements of in-plane and out-of-plane BRDF. We also present, for the first time, an analytic expression for the correction of measured BRDF to true BRDF due to the finite illumination area and collection aperture, and to the effects of uniformity of illumination. Finally, we present exploratory BRDF measurements on a diffuse sample made using the tunable supercontinnum source.
C1 [Patrick, Heather J.; Zarobila, Clarence J.; Germer, Thomas A.; Ying, Victor A.; Cooksey, Catherine A.; Tsai, Benjamin K.] NIST, Gaithersburg, MD 20899 USA.
RP Patrick, HJ (reprint author), NIST, Gaithersburg, MD 20899 USA.
EM heather.patrick@nist.gov
NR 11
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U1 2
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PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-9212-8
J9 PROC SPIE
PY 2012
VL 8495
AR 84950K
DI 10.1117/12.930742
PG 13
WC Optics; Radiology, Nuclear Medicine & Medical Imaging
SC Optics; Radiology, Nuclear Medicine & Medical Imaging
GA BCZ58
UT WOS:000312210500015
ER
PT S
AU Stover, JC
Schroder, S
Germer, TA
AF Stover, John C.
Schroeder, Sven
Germer, Thomas A.
BE Hanssen, LM
TI Upper roughness limitations on the TIS/RMS relationship
SO REFLECTION, SCATTERING, AND DIFFRACTION FROM SURFACES III
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Reflection, Scattering, and Diffraction from Surfaces III
CY AUG 13-16, 2012
CL San Diego, CA
SP SPIE
DE TIS roughness limit; BRDF; sinusoidal diffraction
ID SURFACE-ROUGHNESS; LIGHT-SCATTERING; REGIMES
AB The relationship between total integrated scatter and rms roughness was developed in the radar literature and enabled the first use of scatter measurements to monitor optical roughness. This relationship has been used and misused ever since. Its most common form makes use of a smooth surface approximation and has been applied to optical surfaces now for half a century. It has been suggested that Davies' exponential form can be applied to much rougher surfaces. This paper investigates that issue through a combination of approximate and rigorous calculations made on optically deep sinusoidal gratings and a few measurements.
C1 [Stover, John C.] Scatter Works Inc, Tucson, AZ USA.
[Schroeder, Sven] Fraunhofer Inst Appl Optic & Precis Engn, Jena, Germany.
[Germer, Thomas A.] Natl Inst Stand & Technol, Sensor Sci Div, Gaithersburg, MD 20899 USA.
RP Stover, JC (reprint author), Scatter Works Inc, Tucson, AZ USA.
NR 11
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Z9 0
U1 0
U2 1
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-9212-8
J9 PROC SPIE
PY 2012
VL 8495
AR 849503
DI 10.1117/12.930770
PG 7
WC Optics; Radiology, Nuclear Medicine & Medical Imaging
SC Optics; Radiology, Nuclear Medicine & Medical Imaging
GA BCZ58
UT WOS:000312210500002
ER
PT J
AU Keller, KM
Joos, F
Raible, CC
Cocco, V
Frolicher, TL
Dunne, JP
Gehlen, M
Bopp, L
Orr, JC
Tjiputra, J
Heinze, C
Segschneider, J
Roy, T
Metzl, N
AF Keller, Kathrin M.
Joos, Fortunat
Raible, Christoph C.
Cocco, Valentina
Froelicher, Thomas L.
Dunne, John P.
Gehlen, Marion
Bopp, Laurent
Orr, James C.
Tjiputra, Jerry
Heinze, Christoph
Segschneider, Joachim
Roy, Tilla
Metzl, Nicolas
TI Variability of the ocean carbon cycle in response to the North Atlantic
Oscillation
SO TELLUS SERIES B-CHEMICAL AND PHYSICAL METEOROLOGY
LA English
DT Article
DE North Atlantic Oscillation; carbon cycle; ocean biogeochemistry; climate
modeling; ocean-atmosphere interaction
ID CLIMATE SYSTEM MODEL; INTERANNUAL VARIABILITY; DECADAL VARIABILITY;
ANTHROPOGENIC CO2; SEA; CIRCULATION; SIMULATION; DIOXIDE; TRENDS; WATER
AB Climate modes such as the North Atlantic Oscillation (NAO), representing internal variability of the climate system, influence the ocean carbon cycle and may mask trends in the sink of anthropogenic carbon. Here, utilising control runs of six fully coupled Earth System Models, the response of the ocean carbon cycle to the NAO is quantified. The dominating response, a seesaw pattern between the subtropical gyre and the subpolar Northern Atlantic, is instantaneous (<3 months) and dynamically consistent over all models and with observations for a range of physical and biogeochemical variables. All models show asymmetric responses to NAO(+) and NAO(-) forcing, implying non-linearity in the connection between NAO and the ocean carbon cycle. However, model differences in regional expression and magnitude and conflicting results with regard to air-sea flux and CO2 partial pressure remain. Typical NAO-driven variations are +/- 10 mmol/m(3) in the surface concentration of dissolved inorganic carbon and alkalinity and +/- 8 ppm in the air-sea partial pressure difference. The effect on the basin-wide air-sea CO2 flux is small due to compensating fluxes on the sub-basin scale. Two models show a reduced carbon sink in the north-eastern North Atlantic during negative NAO phases, qualitatively in accordance with the observed decline during a phase of predominantly negative NAO. The results indicate that wind-driven dynamics are the main driver of the response to the NAO, which - via vertical mixing, upwelling and the associated entrainment of dissolved inorganic carbon and nutrients - leave an imprint on surface pCO(2) and the air-sea CO2 flux as well as on biological export production, pH and the calcium carbonate saturation state. The biogeochemical response to the NAO is predominantly governed by vertical exchange between the surface and the thermocline; large-scale horizontal transport mechanisms are of minor importance.
C1 [Keller, Kathrin M.; Joos, Fortunat; Raible, Christoph C.; Cocco, Valentina] Univ Bern, Inst Phys, CH-3012 Bern, Switzerland.
[Keller, Kathrin M.; Joos, Fortunat; Raible, Christoph C.; Cocco, Valentina] Univ Bern, Oeschger Ctr Climate Change Res, CH-3012 Bern, Switzerland.
[Froelicher, Thomas L.] Princeton Univ, Program Atmospher & Ocean Sci, Princeton, NJ 08544 USA.
[Dunne, John P.] NOAA GFDL, Princeton, NJ 08540 USA.
[Gehlen, Marion; Bopp, Laurent; Orr, James C.] Lab Climat & Environm LSCE, F-91191 Gif Sur Yvette, France.
[Tjiputra, Jerry; Heinze, Christoph] Univ Bergen, Dept Geophys, N-5007 Bergen, Norway.
[Tjiputra, Jerry; Heinze, Christoph] Bjerknes Ctr Climate Res, N-5007 Bergen, Norway.
[Segschneider, Joachim] Max Planck Inst Meteorol, D-20146 Hamburg, Germany.
[Roy, Tilla; Metzl, Nicolas] Lab Oceanog & Climat LOCEAN IPSL, F-75252 Paris 05, France.
RP Keller, KM (reprint author), Univ Bern, Inst Phys, Sidlerstr 5, CH-3012 Bern, Switzerland.
EM keller@climate.unibe.ch
RI Keller, Kathrin M/A-8126-2013; Dunne, John/F-8086-2012; Frolicher,
Thomas/E-5137-2015; Raible, Christoph/M-8309-2016;
OI Keller, Kathrin M/0000-0001-8281-4304; Dunne, John/0000-0002-8794-0489;
Frolicher, Thomas/0000-0003-2348-7854; Raible,
Christoph/0000-0003-0176-0602; Orr, James/0000-0002-8707-7080; Tjiputra,
Jerry/0000-0002-4600-2453; Joos, Fortunat/0000-0002-9483-6030
FU EU; European Community [264879]; Swiss National Science Foundation; BP
through the Carbon Mitigation Initiative at Princeton University; French
national programme LEFE/INSU
FX We thank Andreas Born, Marco Steinacher, Aida F. Rios, Fiz F. Perez and
Jon Olafsson for discussion and constructive comments. The research
leading to these results was supported through EU FP7 project
CARBOCHANGE 'Changes in carbon uptake and emissions by oceans in a
changing climate' which received funding from the European Community's
Seventh Framework Programme under grant agreement no. 264879. Additional
support was received from the Swiss National Science Foundation. TLF was
supported by BP through the Carbon Mitigation Initiative at Princeton
University. N. Metzl also acknowledges support from the French national
programme LEFE/INSU. This is publication nr. A406 from the Bjerknes
Centre for Climate Research (BCCR), and it is a contribution to the
Centre for Climate Dynamics (SKD) at BCCR. Simulations with CSM1.4 and
CCSM3 were carried out at the Swiss National Supercomputing Centre in
Manno, Switzerland.
NR 111
TC 10
Z9 10
U1 2
U2 33
PU CO-ACTION PUBLISHING
PI JARFALLA
PA RIPVAGEN 7, JARFALLA, SE-175 64, SWEDEN
SN 0280-6509
J9 TELLUS B
JI Tellus Ser. B-Chem. Phys. Meteorol.
PY 2012
VL 64
AR 18738
DI 10.3402/tellusb.v64i0.18738
PG 25
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 053LC
UT WOS:000312272000001
ER
PT J
AU Suzuki, S
Manzello, SL
Lage, M
Laing, G
AF Suzuki, Sayaka
Manzello, Samuel L.
Lage, Matthew
Laing, George
TI Firebrand generation data obtained from a full-scale structure burn
SO INTERNATIONAL JOURNAL OF WILDLAND FIRE
LA English
DT Article
DE mass distribution; size distribution; WUI fires
ID HIGH WINDS; FLIGHT
AB A full-scale, proof-of-concept experiment was conducted to investigate firebrand production from a burning structure. In this experiment, researchers from National Institute of Standards and Technology (NIST) were invited to set up instrumentation and collect firebrands using an array of water pans during a structure burn-down. The size and mass distribution of firebrands collected from the burning structure was compared with those measured from vegetation as well as historical firebrand investigations and found to be larger and broader than those of prior studies from historical firebrand investigations.
C1 [Suzuki, Sayaka; Manzello, Samuel L.] NIST, Fire Res Div, Engn Lab, Gaithersburg, MD 20899 USA.
[Lage, Matthew] Vacaville Fire Dept, Vacaville, CA 95687 USA.
[Laing, George] Fire Protect Dist, Pleasant Hill, CA 94523 USA.
RP Manzello, SL (reprint author), NIST, Fire Res Div, Engn Lab, 100 Bur Dr, Gaithersburg, MD 20899 USA.
EM samuelm@nist.gov
NR 37
TC 13
Z9 13
U1 0
U2 6
PU CSIRO PUBLISHING
PI COLLINGWOOD
PA 150 OXFORD ST, PO BOX 1139, COLLINGWOOD, VICTORIA 3066, AUSTRALIA
SN 1049-8001
J9 INT J WILDLAND FIRE
JI Int. J. Wildland Fire
PY 2012
VL 21
IS 8
BP 961
EP 968
DI 10.1071/WF11133
PG 8
WC Forestry
SC Forestry
GA 043PV
UT WOS:000311557400004
ER
PT J
AU Srinivasan, M
Pearson, HC
Vaughn-Hirshorn, RL
Wursig, B
Murtugudde, R
AF Srinivasan, M.
Pearson, H. C.
Vaughn-Hirshorn, R. L.
Wuersig, B.
Murtugudde, R.
TI Using climate downscaling to hypothesise impacts on apex predator marine
ecosystem dynamics
SO NEW ZEALAND JOURNAL OF MARINE AND FRESHWATER RESEARCH
LA English
DT Article
DE behavioural ecology; cetaceans; coastal; apex predator; climate change;
climate downscaling; ecosystem effects; dusky dolphins; El Nino; climate
ID DATA ASSIMILATION ANALYSIS; UPPER OCEAN 1950-95; COD GADUS-MORHUA;
NEW-ZEALAND; NORTH-ATLANTIC; ADMIRALTY BAY; PACIFIC-OCEAN; FISHERIES;
CONSERVATION; AQUACULTURE
AB Climate downscaling studies help to connect global predictions and projections with regional dynamics and generate a better understanding of past and future conditions. Adding ecological variables and trophic relationships into the climate equation is challenging since there are few clear connections. The present study is an exploratory data analysis to explain dusky dolphin (Lagenorhynchus obscurus) encounter rate patterns in Admiralty Bay, New Zealand. During 20012006, dolphin encounter rate in winter decreased from 6 to 0.8 groups/h and the proportion of dolphin groups observed feeding decreased from 80% to 38% in Inner Admiralty Bay. These trends generally corresponded to cooler and moderate El Nino Southern Oscillation years, lower sea surface height, southwesterly winds, increased surface mixing and decreased sea surface salinity. To fully grasp the significance of these relationships and potential impact(s) on dolphin population trends, directed long-term studies that synthesise dolphin, prey, water quality, anthropogenic pressures and climatic information into regional climate-ecosystem models are needed.
C1 [Srinivasan, M.; Pearson, H. C.; Vaughn-Hirshorn, R. L.; Wuersig, B.] Texas A&M Univ, Marine Mammal Res Program, Dept Wildlife & Fisheries Sci, Galveston, TX USA.
[Murtugudde, R.] Univ Maryland, Dept Atmospher & Ocean Sci, Earth Syst Sci Interdisciplinary Ctr, College Pk, MD 20742 USA.
[Srinivasan, M.; Pearson, H. C.; Vaughn-Hirshorn, R. L.; Wuersig, B.] Texas A&M Univ, Dept Marine Biol, Marine Mammal Res Program, Galveston, TX 77553 USA.
RP Srinivasan, M (reprint author), NOAA, Off Sci & Technol, Natl Marine Fisheries Serv, Silver Spring, MD USA.
EM mridula.srinivasan@noaa.gov
FU Earthwatch Institute; DOC; Marlborough District Council; National
Geographic Society; Texas AM University; Texas A&M University at
Galveston
FX We thank H Amin, S Arms, L Boren, D and L Boulton, A Dahood, S Deutsch,
N Duprey, P Fisher, B Lloyd, J Maxwell, R and V McDonald, N Newton, C
Pearson, G Rowe, D Shelton, L Timm, S Tirapelle, L Watson, J Weir, L
Wilson, and Earthwatch volunteers for field assistance and logistical
support. Special thanks to Andrew Baxter, New Zealand Department of
Conservation (DOC) and Michael Uddstrom, NIWA for providing SST data for
Admiralty Bay. Authors would also like to specially thank Jim Beauchamp,
National Oceanic and Atmospheric Administration, for providing all data
for the climate impact analysis. Funding was provided by the Earthwatch
Institute, DOC, Marlborough District Council, National Geographic
Society, Texas A&M University and Texas A&M University at Galveston,
Erma Lee and Luke Mooney, and personal funds from M Wursig. Background
maps of New Zealand are courtesy of Eagle Technologies, Wellington, New
Zealand. This study was conducted under Texas A&M Animal Use Protocol
#2005-48 and under special permit from the DOC. R Murtugudde gratefully
acknowledges the generous support and hospitality of the Divecha Center
for Climate Change and CAOS at IISc, Bangalore.
NR 45
TC 2
Z9 2
U1 0
U2 22
PU TAYLOR & FRANCIS LTD
PI ABINGDON
PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLAND
SN 0028-8330
J9 NEW ZEAL J MAR FRESH
JI N. Z. J. Mar. Freshw. Res.
PY 2012
VL 46
IS 4
BP 575
EP 584
DI 10.1080/00288330.2012.712978
PG 10
WC Fisheries; Marine & Freshwater Biology; Oceanography
SC Fisheries; Marine & Freshwater Biology; Oceanography
GA 049OS
UT WOS:000311993500013
ER
PT S
AU Hussey, DS
Jacobson, DL
AF Hussey, D. S.
Jacobson, D. L.
BE Hartnig, C
Roth, C
TI Neutron radiography for high-resolution studies in low temperature fuel
cells
SO POLYMER ELECTROLYTE MEMBRANE AND DIRECT METHANOL FUEL CELL TECHNOLOGY,
VOL 2: IN SITU CHARACTERIZATION TECHNIQUES FOR LOW TEMPERATURE FUEL
CELLS
SE Woodhead Publishing Series in Energy
LA English
DT Article; Book Chapter
DE neutron imaging and radiography; non-destructive in situ evaluation;
porous media; proton exchange membrane fuel cell (PEMFC); through-plane
water transport
ID POLYMER ELECTROLYTE MEMBRANE; PLANE WATER DISTRIBUTION; LIQUID WATER;
FLOW; TRANSPORT; PROFILES; MODEL; LAYER
AB Due to the nature of the interaction between neutrons and material, neutron radiography has played a critical role in the elucidation of water management problems in proton exchange membrane fuel cells (PEMFCs). Recent advances in neutron imaging detector spatial resolution have enabled the study of through-plane water content in PEMFCs. With the ability to discriminate between water in the anode and cathode gas diffusion layers from that in the membrane electrode assembly, fundamental studies have included visualizing the role of thermo-osmosis in water transport, identifying where within the fuel cell sandwich ice forms during operation below 0 degrees C, and measuring mass transfer resistance of the membrane. This chapter discusses types of high-resolution detector systems, typical sources and sizes of measurement uncertainties, and reviews recent experiments.
C1 [Hussey, D. S.; Jacobson, D. L.] NIST, Phys Measurement Lab, Gaithersburg, MD 20899 USA.
RP Hussey, DS (reprint author), NIST, Phys Measurement Lab, 100 Bur Dr,Mail Stop 8461, Gaithersburg, MD 20899 USA.
EM daniel.hussey@nist.gov
NR 39
TC 1
Z9 1
U1 1
U2 3
PU WOODHEAD PUBL LTD
PI CAMBRIDGE
PA ABINGTON HALL ABINGTON, CAMBRIDGE CB1 6AH, CAMBS, ENGLAND
SN 2044-9364
BN 978-0-85709-548-0
J9 WOODHEAD PUBL SER EN
PY 2012
IS 31
BP 188
EP 213
PG 26
WC Energy & Fuels; Materials Science, Characterization & Testing
SC Energy & Fuels; Materials Science
GA BCV05
UT WOS:000311558500008
ER
PT S
AU Miller, DC
Gu, XH
Ji, L
Kelly, G
Nickel, N
Norum, P
Shioda, T
Tamizhmani, G
Wohlgemuth, JH
AF Miller, David C.
Gu, Xiaohong
Ji, Liang
Kelly, George
Nickel, Nichole
Norum, Paul
Shioda, Tsuyoshi
Tamizhmani, Govindasamy
Wohlgemuth, John H.
BE Dhere, NG
Wohlgemuth, JH
TI Examination of a Size-Change Test for Photovoltaic Encapsulation
Materials
SO RELIABILITY OF PHOTOVOLTAIC CELLS, MODULES, COMPONENTS, AND SYSTEMS V
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Reliability of Photovoltaic Cells, Modules, Components,
and Systems V
CY AUG 13-16, 2012
CL San Diego, CA
SP SPIE
DE material characteristics; quality assurance; shrinkage; polymer
AB We examine a proposed test standard that can be used to evaluate the maximum representative change in linear dimensions of sheet encapsulation products for photovoltaic modules (resulting from their thermal processing). The proposed protocol is part of a series of material-level tests being developed within Working Group 2 of the Technical Committee 82 of the International Electrotechnical Commission. The characterization tests are being developed to aid module design (by identifying the essential characteristics that should be communicated on a datasheet), quality control (via internal material acceptance and process control), and failure analysis. Discovery and interlaboratory experiments were used to select particular parameters for the size-change test. The choice of a sand substrate and aluminum carrier is explored relative to other options. The temperature uniformity of +/- 5 degrees C for the substrate was confirmed using thermography. Considerations related to the heating device (hot-plate or oven) are explored. The time duration of 5 minutes was identified from the time-series photographic characterization of material specimens (EVA, ionomer, PVB, TPO, and TPU). The test procedure was revised to account for observed effects of size and edges. The interlaboratory study identified typical size-change characteristics, and also verified the absolute reproducibility of +/- 5% between laboratories.
C1 [Miller, David C.; Wohlgemuth, John H.] Natl Renewable Energy Lab, 15013 Denver W Pkwy, Golden, CO 80401 USA.
[Gu, Xiaohong] NIST, Gaithersburg, MD 20899 USA.
[Ji, Liang] Underwriters Labs Inc UL, Northbrook, IL 60062 USA.
[Kelly, George] BP Solar USA, Frederick, MD 21703 USA.
[Nickel, Nichole] Dow Chem Co USA, Midland, MI 48674 USA.
[Norum, Paul] SolarWorld Ind Amer, Camarillo, CA 93012 USA.
[Shioda, Tsuyoshi] Mitsui Chem Inc, Chiba 2990265, Japan.
[Tamizhmani, Govindasamy] TUV Rheinland PTL, Tempe, AZ 85282 USA.
RP Miller, DC (reprint author), Natl Renewable Energy Lab, 15013 Denver W Pkwy, Golden, CO 80401 USA.
EM David.Miller@nrel.gov
FU U.S. Department of Energy [DE-AC36-08GO28308]; National Renewable Energy
Laboratory; National Institute of Standards and Technology of the U.S.
Department of Commerce
FX The authors are grateful to Dr. Michael Kempe, Dr. Sarah Kurtz, Dr. John
Pern, and Stephen Glick of the National Renewable Energy Laboratory for
their help/discussion with specimen fixturing, specimen handling,
experimental methods, and other subsequent analysis. This work was
supported by the U.S. Department of Energy under Contract No.
DE-AC36-08GO28308 with the National Renewable Energy Laboratory and the
National Institute of Standards and Technology of the U.S. Department of
Commerce..
NR 7
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Z9 0
U1 0
U2 2
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-9189-3
J9 PROC SPIE
PY 2012
VL 8472
AR 84720T
DI 10.1117/12.929796
PG 12
WC Energy & Fuels; Optics
SC Energy & Fuels; Optics
GA BCY48
UT WOS:000312032900014
ER
PT S
AU Knappe, S
Mhaskar, R
Preusser, J
Kitching, J
Trahms, L
Sander, T
AF Knappe, S.
Mhaskar, R.
Preusser, J.
Kitching, J.
Trahms, L.
Sander, T.
BE Jobbagy, A
TI Chip-Scale Room-Temperature Atomic Magnetometers for Biomedical
Measurements
SO 5TH EUROPEAN CONFERENCE OF THE INTERNATIONAL FEDERATION FOR MEDICAL AND
BIOLOGICAL ENGINEERING, PTS 1 AND 2
SE IFMBE Proceedings
LA English
DT Proceedings Paper
CT 5th European Conference of the International Federation for Medical and
Biological Engineering
CY SEP 14-18, 2011
CL Budapest, HUNGARY
DE Chip-scale atomic magnetometer; MCG; MEG; MRX; optical magnetometer
ID MICROFABRICATED VAPOR CELL; MAGNETIC-FIELD
AB We describe a portable four-channel array of chip-scale atomic magnetometers in a flexible flying-lead configuration. These microfabricated, uncooled sensors with volumes below 1 cm(3) demonstrate sensitivities around 100 fT/Hz(1/2) and bandwidths of several hundred hertz. Performance limits are discussed, as the design is easily scalable to different sensor sizes and large arrays. Initial measurements of MCG are cross-validated with SQUID measurements.
C1 [Knappe, S.; Mhaskar, R.; Preusser, J.; Kitching, J.] NIST, Div Time & Frequency, Boulder, CO USA.
[Knappe, S.; Mhaskar, R.] Univ Colorado, Boulder, CO 80309 USA.
[Trahms, L.; Sander, T.] Phys Tech Bundesanstalt, Berlin, Germany.
RP Knappe, S (reprint author), NIST, Div Time & Frequency, Boulder, CO USA.
NR 18
TC 1
Z9 1
U1 1
U2 5
PU SPRINGER
PI NEW YORK
PA 233 SPRING STREET, NEW YORK, NY 10013, UNITED STATES
SN 1680-0737
BN 978-3-642-23507-8
J9 IFMBE PROC
PY 2012
VL 37
BP 1330
EP +
PG 3
WC Engineering, Biomedical
SC Engineering
GA BCP21
UT WOS:000310938200343
ER
PT J
AU Schwarz, JP
Doherty, SJ
Li, F
Ruggiero, ST
Tanner, CE
Perring, AE
Gao, RS
Fahey, DW
AF Schwarz, J. P.
Doherty, S. J.
Li, F.
Ruggiero, S. T.
Tanner, C. E.
Perring, A. E.
Gao, R. S.
Fahey, D. W.
TI Assessing Single Particle Soot Photometer and Integrating
Sphere/Integrating Sandwich Spectrophotometer measurement techniques for
quantifying black carbon concentration in snow
SO ATMOSPHERIC MEASUREMENT TECHNIQUES
LA English
DT Article
ID AEROSOL LIGHT-ABSORPTION; CALIBRATION; DUST; INTERCOMPARISONS;
IMPURITIES; DEPOSITION; AD
AB We evaluate the performance of the Single Particle Soot Photometer (SP2) and the Integrating Sphere/Integrating Sandwich Spectrophotometer (ISSW) in quantifying the concentration of refractory black carbon (BC) in snow samples. We find that the SP2 can be used to measure BC mass concentration in snow with substantially larger uncertainty (60%) than for atmospheric sampling (<30%). Achieving this level of accuracy requires careful assessment of nebulizer performance and SP2 calibration with consideration of the fact that BC in snow can exist in larger sizes than typically observed in the atmosphere. Once these issues are addressed, the SP2 is able to measure the size distribution and mass concentration of BC in the snow. Laboratory comparison of the SP2 and the ISSW revealed significant biases in the estimate of BC concentration from the ISSW when test samples contained dust or non-absorbing particulates. These results suggest that current estimates of BC mass concentration in snow or ice formed from fallen snow using either the SP2 or the ISSW may be associated with significant underestimates of uncertainty.
C1 [Schwarz, J. P.; Perring, A. E.; Gao, R. S.; Fahey, D. W.] NOAA, Chem Sci Div, Earth Syst Res Lab, Boulder, CO USA.
[Schwarz, J. P.; Perring, A. E.; Fahey, D. W.] Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA.
[Doherty, S. J.] Univ Washington, JISAO, Seattle, WA 98195 USA.
[Li, F.; Ruggiero, S. T.; Tanner, C. E.] Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 USA.
RP Schwarz, JP (reprint author), NOAA, Chem Sci Div, Earth Syst Res Lab, Boulder, CO USA.
EM joshua.p.schwarz@noaa.gov
RI schwarz, joshua/G-4556-2013; Perring, Anne/G-4597-2013; Gao,
Ru-Shan/H-7455-2013; Doherty, Sarah/D-5592-2015; Fahey,
David/G-4499-2013; Manager, CSD Publications/B-2789-2015
OI schwarz, joshua/0000-0002-9123-2223; Perring, Anne/0000-0003-2231-7503;
Doherty, Sarah/0000-0002-7796-6968; Fahey, David/0000-0003-1720-0634;
NR 26
TC 33
Z9 33
U1 2
U2 42
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1867-1381
J9 ATMOS MEAS TECH
JI Atmos. Meas. Tech.
PY 2012
VL 5
IS 11
BP 2581
EP 2592
DI 10.5194/amt-5-2581-2012
PG 12
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 046ZK
UT WOS:000311804400002
ER
PT J
AU Fuchs, H
Simpson, WR
Apodaca, RL
Brauers, T
Cohen, RC
Crowley, JN
Dorn, HP
Dube, WP
Fry, JL
Haseler, R
Kajii, Y
Kiendler-Scharr, A
Labazan, I
Matsumoto, J
Mentel, TF
Nakashima, Y
Rohrer, F
Rollins, AW
Schuster, G
Tillmann, R
Wahner, A
Wooldridge, PJ
Brown, SS
AF Fuchs, H.
Simpson, W. R.
Apodaca, R. L.
Brauers, T.
Cohen, R. C.
Crowley, J. N.
Dorn, H. -P.
Dube, W. P.
Fry, J. L.
Haeseler, R.
Kajii, Y.
Kiendler-Scharr, A.
Labazan, I.
Matsumoto, J.
Mentel, T. F.
Nakashima, Y.
Rohrer, F.
Rollins, A. W.
Schuster, G.
Tillmann, R.
Wahner, A.
Wooldridge, P. J.
Brown, S. S.
TI Comparison of N2O5 mixing ratios during NO3Comp 2007 in SAPHIR
SO ATMOSPHERIC MEASUREMENT TECHNIQUES
LA English
DT Article
ID SIMULATION CHAMBER SAPHIR; LASER-INDUCED FLUORESCENCE; RING-DOWN
SPECTROSCOPY; DIFFERENTIAL OPTICAL-ABSORPTION; IONIZATION
MASS-SPECTROMETRY; NOCTURNAL NITROGEN-OXIDES; ELECTRON-SPIN-RESONANCE;
MARINE BOUNDARY-LAYER; IN-SITU DETECTION; HETEROGENEOUS HYDROLYSIS
AB N2O5 detection in the atmosphere has been accomplished using techniques which have been developed during the last decade. Most techniques use a heated inlet to thermally decompose N2O5 to NO3, which can be detected by either cavity based absorption at 662 nm or by laser-induced fluorescence. In summer 2007, a large set of instruments, which were capable of measuring NO3 mixing ratios, were simultaneously deployed in the atmosphere simulation chamber SAPHIR in Julich, Germany. Some of these instruments measured N2O5 mixing ratios either simultaneously or alternatively. Experiments focused on the investigation of potential interferences from, e. g., water vapour or aerosol and on the investigation of the oxidation of biogenic volatile organic compounds by NO3. The comparison of N2O5 mixing ratios shows an excellent agreement between measurements of instruments applying different techniques (3 cavity ring-down (CRDS) instruments, 2 laser-induced fluorescence (LIF) instruments). Datasets are highly correlated as indicated by the square of the linear correlation coefficients, R-2, which values were larger than 0.96 for the entire datasets. N2O5 mixing ratios well agree within the combined accuracy of measurements. Slopes of the linear regression range between 0.87 and 1.26 and intercepts are negligible. The most critical aspect of N2O5 measurements by cavity ring-down instruments is the determination of the inlet and filter transmission efficiency. Measurements here show that the N2O5 inlet transmission efficiency can decrease in the presence of high aerosol loads, and that frequent filter/inlet changing is necessary to quantitatively sample N2O5 in some environments. The analysis of data also demonstrates that a general correction for degrading filter transmission is not applicable for all conditions encountered during this campaign. Besides the effect of a gradual degradation of the inlet transmission efficiency aerosol exposure, no other interference for N2O5 measurements is found.
C1 [Fuchs, H.; Brauers, T.; Dorn, H. -P.; Haeseler, R.; Kiendler-Scharr, A.; Mentel, T. F.; Rohrer, F.; Tillmann, R.; Wahner, A.] Forschungszentrum Julich, Inst Energy & Climate Res, IEK Troposphere 8, D-52425 Julich, Germany.
[Fuchs, H.; Dube, W. P.] Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA.
[Simpson, W. R.; Apodaca, R. L.] Univ Alaska Fairbanks, Dept Chem & Biochem, Fairbanks, AK USA.
[Simpson, W. R.; Apodaca, R. L.] Univ Alaska Fairbanks, Inst Geophys, Fairbanks, AK 99775 USA.
[Fuchs, H.; Dube, W. P.; Brown, S. S.] NOAA, Earth Syst Res Lab, Boulder, CO USA.
[Cohen, R. C.; Fry, J. L.; Rollins, A. W.; Wooldridge, P. J.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.
[Crowley, J. N.; Labazan, I.; Schuster, G.] Max Planck Inst Chem, D-6500 Mainz, Germany.
[Kajii, Y.; Matsumoto, J.; Nakashima, Y.] Tokyo Metropolitan Univ, Dept Appl Chem, Tokyo 158, Japan.
RP Fuchs, H (reprint author), Forschungszentrum Julich, Inst Energy & Climate Res, IEK Troposphere 8, D-52425 Julich, Germany.
EM h.fuchs@fz-juelich.de
RI Dorn, Hans-Peter/B-3054-2009; Manager, CSD Publications/B-2789-2015;
Rohrer, Franz/I-2052-2012; Mentel, Thomas/A-3576-2011; Kiendler-Scharr,
Astrid/E-8439-2011; Tillmann, Ralf/I-9203-2012; Rollins,
Andrew/G-7214-2012; Dube, William/I-1658-2013; Brown,
Steven/I-1762-2013; Cohen, Ronald/A-8842-2011; Fuchs,
Hendrik/I-9157-2012; Brauers, Theo/A-8444-2008; Wahner,
Andreas/J-4129-2012; nakashima, yoshihiro/G-1141-2013; Simpson,
William/I-2859-2014
OI Dorn, Hans-Peter/0000-0001-5945-7708; Rohrer, Franz/0000-0003-3436-3419;
Mentel, Thomas/0000-0003-0810-3541; Kiendler-Scharr,
Astrid/0000-0003-3166-2253; Tillmann, Ralf/0000-0003-0648-6622; Dube,
William/0000-0003-1286-4087; Cohen, Ronald/0000-0001-6617-7691; Fuchs,
Hendrik/0000-0003-1263-0061; Brauers, Theo/0000-0001-6671-8566; Wahner,
Andreas/0000-0001-8948-1928; Simpson, William/0000-0002-8596-7290
FU European Community [RII3-CT-2004-505968]; NSF [ATM-0639847,
ATM-0511829]; National Science Foundation [CHE- 0094038, ATM-0624448];
United States Department of Energy [DE-FG02-03ER83695]
FX The authors thank B. Bohn und R. Wegener for measurements of
NO3 photolysis frequencies and butanal concentrations shown
in Fig. 1. The NO3-N2O5-Intercomparison
campaign (2007) was supported by grant no. RII3-CT-2004-505968 of the
European Community within the 6th Framework Program, Section Support for
research Infrastructures - Integrated Infrastructure Initiative:
EUROCHAMP and Priority 1.1.6.3. Global Change and Ecosystems: ACCENT.
Authors associated with University of California Berkeley would like to
acknowledge support by NSF grants ATM-0639847 and ATM-0511829. Authors
associated with University of Alaska Fairbanks were supported by the
National Science Foundation (Grants CHE- 0094038 and ATM-0624448), as
well as by the United States Department of Energy (Grant
DE-FG02-03ER83695).
NR 55
TC 7
Z9 7
U1 3
U2 40
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1867-1381
J9 ATMOS MEAS TECH
JI Atmos. Meas. Tech.
PY 2012
VL 5
IS 11
BP 2763
EP 2777
DI 10.5194/amt-5-2763-2012
PG 15
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 046ZK
UT WOS:000311804400017
ER
PT J
AU Whiteman, DN
Cadirola, M
Venable, D
Calhoun, M
Miloshevich, L
Vermeesch, K
Twigg, L
Dirisu, A
Hurst, D
Hall, E
Jordan, A
Vomel, H
AF Whiteman, D. N.
Cadirola, M.
Venable, D.
Calhoun, M.
Miloshevich, L.
Vermeesch, K.
Twigg, L.
Dirisu, A.
Hurst, D.
Hall, E.
Jordan, A.
Voemel, H.
TI Correction technique for Raman water vapor lidar signal-dependent bias
and suitability for water vapor trend monitoring in the upper
troposphere
SO ATMOSPHERIC MEASUREMENT TECHNIQUES
LA English
DT Article
ID LONG-TERM MEASUREMENTS; INTERNATIONAL H2O PROJECT;
ATMOSPHERIC-TEMPERATURE; HUMIDITY MEASUREMENTS; FLUORESCENCE-SPECTRA;
PART I; AWEX-G; VALIDATION; RADIOSONDE; CALIBRATION
AB The MOHAVE-2009 campaign brought together diverse instrumentation for measuring atmospheric water vapor. We report on the participation of the ALVICE (Atmospheric Laboratory for Validation, Interagency Collaboration and Education) mobile laboratory in the MOHAVE-2009 campaign. In appendices we also report on the performance of the corrected Vaisala RS92 radiosonde measurements during the campaign, on a new radiosonde based calibration algorithm that reduces the influence of atmospheric variability on the derived calibration constant, and on other results of the ALVICE deployment. The MOHAVE-2009 campaign permitted the Raman lidar systems participating to discover and address measurement biases in the upper troposphere and lower stratosphere. The ALVICE lidar system was found to possess a wet bias which was attributed to fluorescence of insect material that was deposited on the telescope early in the mission. Other sources of wet biases are discussed and data from other Raman lidar systems are investigated, revealing that wet biases in upper tropospheric (UT) and lower stratospheric (LS) water vapor measurements appear to be quite common in Raman lidar systems. Lower stratospheric climatology of water vapor is investigated both as a means to check for the existence of these wet biases in Raman lidar data and as a source of correction for the bias. A correction technique is derived and applied to the ALVICE lidar water vapor profiles. Good agreement is found between corrected ALVICE lidar measurments and those of RS92, frost point hygrometer and total column water. The correction is offered as a general method to both quality control Raman water vapor lidar data and to correct those data that have signal-dependent bias. The influence of the correction is shown to be small at regions in the upper troposphere where recent work indicates detection of trends in atmospheric water vapor may be most robust. The correction shown here holds promise for permitting useful upper tropospheric water vapor profiles to be consistently measured by Raman lidar within NDACC (Network for the Detection of Atmospheric Composition Change) and elsewhere, despite the prevalence of instrumental and atmospheric effects that can contaminate the very low signal to noise measurements in the UT.
C1 [Whiteman, D. N.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Cadirola, M.] Ecotronics LLC, Clarksburg, MD 20871 USA.
[Venable, D.; Calhoun, M.] Howard Univ, Washington, DC 20059 USA.
[Miloshevich, L.] Milo Sci LLC, Lafayette, CO 80026 USA.
[Vermeesch, K.; Twigg, L.] SSAI, Lanham, MD 20706 USA.
[Dirisu, A.] Oak Ridge Associated Univ, Oak Ridge, TN 37381 USA.
[Hurst, D.; Hall, E.; Jordan, A.] Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA.
[Hurst, D.; Hall, E.; Jordan, A.] NOAA, Earth Syst Res Lab, Global Monitoring Div, Boulder, CO 80305 USA.
[Voemel, H.] Lindenberg Observ, Lindenberg, Germany.
RP Whiteman, DN (reprint author), NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
EM david.n.whiteman@nasa.gov
RI Hurst, Dale/D-1554-2016
OI Hurst, Dale/0000-0002-6315-2322
NR 60
TC 8
Z9 8
U1 0
U2 12
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1867-1381
J9 ATMOS MEAS TECH
JI Atmos. Meas. Tech.
PY 2012
VL 5
IS 11
BP 2893
EP 2916
DI 10.5194/amt-5-2893-2012
PG 24
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 046ZK
UT WOS:000311804400025
ER
PT J
AU Nanninga, NE
AF Nanninga, N. E.
BE Gangloff, RP
Somerday, BP
TI Fatigue crack initiation and fatigue life of metals exposed to hydrogen
SO GASEOUS HYDROGEN EMBRITTLEMENT OF MATERIALS IN ENERGY TECHNOLOGIES, VOL
1: THE PROBLEM, ITS CHARACTERISATION AND EFFECTS ON PARTICULAR ALLOY
CLASSES
SE Woodhead Publishing in Materials
LA English
DT Article; Book Chapter
DE fatigue crack growth threshold; fatigue crack initiation; high cycle
fatigue; low cycle fatigue; ultra-high cycle fatigue
ID LOW-CYCLE FATIGUE; AUSTENITIC STAINLESS-STEELS; REGIME
N-GREATER-THAN-10(7) CYCLES; HIGH-PRESSURE HYDROGEN; STAGE-I
PROPAGATION; HIGH STRAIN FATIGUE; FUEL-CELL SYSTEM; GROWTH-BEHAVIOR;
NEAR-THRESHOLD; ABSORBED HYDROGEN
AB Design against fatigue failure often relies on the use of strain- or stress-life fatigue curves for determining safe operating conditions. Fatigue lives of engineering materials and components can be reduced when they are exposed to gaseous hydrogen, although, much of the decreased life may be attributed to enhanced stage II fatigue crack growth. The effects of hydrogen on fatigue crack initiation and stage I fatigue crack growth seem to be less damaging, but currently there is no clear understanding of the role of hydrogen in these processes. This chapter summarizes the existing literature on total-life fatigue testing, fatigue crack initiation, and early fatigue crack growth of metallic materials exposed to hydrogen. Through dissection of the existing literature we address key questions regarding fatigue crack initiation, e.g., the apparent role of a critical hydrogen concentration in fatigue crack initiation, the effects of micro-notches in reducing crack initiation lives, and the effects of hydrogen on slip localization and early formation of persistent slip bands. These observations are expected to help direct future research toward understanding this phenomenon.
C1 [Nanninga, N. E.] NIST, Washington, DC USA.
RP Nanninga, NE (reprint author), TIMET, Henderson Tech Lab, POB 2128, Henderson, NV 89009 USA.
EM nick.nanninga@timet.com
NR 113
TC 2
Z9 2
U1 0
U2 0
PU WOODHEAD PUBL LTD
PI CAMBRIDGE
PA ABINGTON HALL ABINGTON, CAMBRIDGE CB1 6AH, CAMBS, ENGLAND
BN 978-0-85709-389-9
J9 WOODHEAD PUBL MATER
PY 2012
BP 347
EP 378
D2 10.1533/9780857093899
PG 32
WC Energy & Fuels; Materials Science, Multidisciplinary
SC Energy & Fuels; Materials Science
GA BCW71
UT WOS:000311701400011
ER
PT J
AU Kuck, S
Migdall, AL
Degiovanni, IP
Cheung, JY
AF Kueck, Stefan
Migdall, Alan L.
Degiovanni, Ivo Pietro
Cheung, Jessica Y.
TI Single-Photon Devices and Applications
SO JOURNAL OF MODERN OPTICS
LA English
DT Editorial Material
ID SPECIAL-ISSUE; DETECTORS
C1 [Kueck, Stefan] PTB, Braunschweig, Germany.
[Migdall, Alan L.] NIST, Gaithersburg, MD 20899 USA.
[Degiovanni, Ivo Pietro] INRIM, Turin, Italy.
[Cheung, Jessica Y.] NPL, Teddington, Middx, England.
RP Kuck, S (reprint author), PTB, Braunschweig, Germany.
RI Degiovanni, Ivo Pietro/F-2140-2013
OI Degiovanni, Ivo Pietro/0000-0003-0332-3115
NR 4
TC 3
Z9 3
U1 2
U2 7
PU TAYLOR & FRANCIS LTD
PI ABINGDON
PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLAND
SN 0950-0340
J9 J MOD OPTIC
JI J. Mod. Opt.
PY 2012
VL 59
IS 17
BP 1455
EP 1457
DI 10.1080/09500340.2012.744192
PG 3
WC Optics
SC Optics
GA 039BS
UT WOS:000311218400001
ER
PT J
AU Restelli, A
Bienfang, JC
Migdall, AL
AF Restelli, Alessandro
Bienfang, Joshua C.
Migdall, Alan L.
TI Time-domain measurements of afterpulsing in InGaAs/InP SPAD gated with
sub-nanosecond pulses
SO JOURNAL OF MODERN OPTICS
LA English
DT Article
DE optical instrumentation and technology; single photon detector;
avalanche photodiode; near infrared
ID SINGLE-PHOTON DETECTION; AVALANCHE PHOTODIODES; WAVELENGTHS
AB Afterpulsing was investigated experimentally in an InGaAs single-photon avalanche diode (SPAD) operating in the biasing and sensing regime of periodic-gating techniques. These techniques support single-photon counting at rates in the 100MHz range with low afterpulse probability and are characterized by sub-nanosecond active gates that limit total avalanche-charge flows to the 100 fC range or less. We achieved comparable gating and sensing performance with a system using non-periodic gates and were able to make traditional double-pulse afterpulse measurements from 4.8 ns to 2 mu s in this new low-avalanche-current regime. With 0.50 ns gate duration and a detection efficiency of 0.15 at 1310nm the per-gate afterpulse probability at 4.8 ns is 0.008, while with a 1.5 ns gate it is almost two orders of magnitude higher. We provide a quantitative connection between afterpulse probability and total avalanche charge, and between the performance observed in traditional gating techniques for InGaAs SPADs and those observed with periodic gating techniques.
C1 [Restelli, Alessandro; Bienfang, Joshua C.; Migdall, Alan L.] Univ Maryland, Joint Quantum Inst, Gaithersburg, MD USA.
[Bienfang, Joshua C.; Migdall, Alan L.] Natl Inst Stand & Technol, Quantum Measurement Div, Gaithersburg, MD 20899 USA.
RP Restelli, A (reprint author), Univ Maryland, Joint Quantum Inst, Gaithersburg, MD USA.
EM alessandro.restelli@nist.gov
RI Restelli, Alessandro/A-4897-2009
OI Restelli, Alessandro/0000-0002-1289-3171
FU DARPA InPho program
FX This work was funded in part by the DARPA InPho program.
NR 14
TC 17
Z9 17
U1 0
U2 6
PU TAYLOR & FRANCIS LTD
PI ABINGDON
PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLAND
SN 0950-0340
J9 J MOD OPTIC
JI J. Mod. Opt.
PY 2012
VL 59
IS 17
BP 1465
EP 1471
DI 10.1080/09500340.2012.687463
PG 7
WC Optics
SC Optics
GA 039BS
UT WOS:000311218400003
ER
PT J
AU Toppozini, L
Armstrong, CL
Barrett, MA
Zheng, SB
Luo, L
Nanda, H
Sakai, VG
Rheinstadter, MC
AF Toppozini, Laura
Armstrong, Clare L.
Barrett, Matthew A.
Zheng, Songbo
Luo, Lindy
Nanda, Hirsh
Sakai, Victoria Garcia
Rheinstaedter, Maikel C.
TI Partitioning of ethanol into lipid membranes and its effect on fluidity
and permeability as seen by X-ray and neutron scattering
SO SOFT MATTER
LA English
DT Article
ID PHOSPHOLIPID-BILAYERS; NONELECTROLYTE PARTITION; BIOLOGICAL-MEMBRANES;
PHASE DMPC; WATER; DYNAMICS; MODEL; DIPALMITOYLPHOSPHATIDYLCHOLINE;
DIFFRACTION; ANESTHETICS
AB We present a combined neutron and X-ray scattering investigation to study the effect of ethanol on the molecular structure and dynamics of lipid membranes. 1,2-Dimyristoyl-sn-glycero-3phoshatidylcholine (DMPC) powder hydrated with a 5 wt% ethanol solution (corresponding to 2 mol% of ethanol) was used in this study. From high-resolution X-ray experiments the position and partitioning of the ethanol molecules in the phospholipid bilayers was determined in their gel and fluid phases. We find that the ethanol molecules reside in the head group region of the bilayers, with 1.6 ethanol molecules per lipid molecule in the gel phase and 1.2 ethanol molecules per lipid molecule in the fluid phase. We find evidence for enhanced permeability in both fluid and gel phases of the phospholipid bilayers in the presence of ethanol molecules. Elastic and quasi-elastic neutron scattering data, obtained using a neutron backscattering spectrometer, was used to study slow, nanosecond molecular dynamics on length scales corresponding to lipid diffusion, acyl chain dynamics and solvent dynamics. While the presence of ethanol molecules had no observable effect on these types of dynamics in the fluid (L-alpha) phase, the membranes appeared to have a higher degree of order in gel (L-beta) and ripple (P-beta') phases. In particular, lipid diffusion was found to be slower by a factor of two in the more rigid gel phase when ethanol was present.
C1 [Toppozini, Laura; Armstrong, Clare L.; Barrett, Matthew A.; Zheng, Songbo; Luo, Lindy; Rheinstaedter, Maikel C.] McMaster Univ, Dept Phys & Astron, Hamilton, ON L8S 4M1, Canada.
[Nanda, Hirsh] NIST, NIST Ctr Neutron Res, Gaithersburg, MD 20899 USA.
[Sakai, Victoria Garcia] Rutherford Appleton Lab, ISIS Pulsed Neutron & Muon Source, Didcot OX11 0QX, Oxon, England.
[Rheinstaedter, Maikel C.] Natl Res Council Canada, Canadian Neutron Beam Ctr, Chalk River, ON, Canada.
RP Toppozini, L (reprint author), McMaster Univ, Dept Phys & Astron, Hamilton, ON L8S 4M1, Canada.
EM toppozl@mcmaster.ca; victoria.garcia-sakai@stfc.ac.uk;
rheinstadter@mcmaster.ca
FU Natural Sciences and Engineering Research Council of Canada (NSERC);
National Research Council Canada (NRC); Canada Foundation for Innovation
(CFI); Ontario Ministry of Economic Development and Innovation
FX This research was funded by the Natural Sciences and Engineering
Research Council of Canada (NSERC), the National Research Council Canada
(NRC), the Canada Foundation for Innovation (CFI) and the Ontario
Ministry of Economic Development and Innovation. We thank the NIST
Center for Neutron Research for the allocation of beam time. This work
utilized facilities supported in part by the National Science Foundation
under Agreement No. DMR-0944772.
NR 61
TC 21
Z9 21
U1 2
U2 33
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1744-683X
J9 SOFT MATTER
JI Soft Matter
PY 2012
VL 8
IS 47
BP 11839
EP 11849
DI 10.1039/c2sm26546j
PG 11
WC Chemistry, Physical; Materials Science, Multidisciplinary; Physics,
Multidisciplinary; Polymer Science
SC Chemistry; Materials Science; Physics; Polymer Science
GA 044QL
UT WOS:000311637000009
ER
PT B
AU Adams, NS
Beeman, JW
Eiler, JH
AF Adams, Noah S.
Beeman, John W.
Eiler, John H.
BE Adams, NS
Beeman, JW
Eiler, JH
TI Telemetry Techniques: A User Guide for Fisheries Research Introduction
SO TELEMETRY TECHNIQUES: A USER GUIDE FOR FISHERIES RESEARCH
LA English
DT Editorial Material; Book Chapter
ID TRACKING
C1 [Adams, Noah S.; Beeman, John W.] US Geol Survey, Western Fisheries Res Ctr, Columbia River Res Lab, Cook, WA 98605 USA.
[Eiler, John H.] Natl Marine Fisheries Serv, Alaska Fisheries Sci Ctr, Auke Bay Labs, Juneau, AK 99801 USA.
RP Adams, NS (reprint author), US Geol Survey, Western Fisheries Res Ctr, Columbia River Res Lab, 5501 A Cook Underwood Rd, Cook, WA 98605 USA.
EM nadams@usgs.gov; jbeeman@usgs.gov; john.eiler@noaa.gov
NR 5
TC 7
Z9 7
U1 0
U2 5
PU AMER FISHERIES SOC
PI BETHESDA
PA 5410 GROSVENOR LANE, STE 110, BETHESDA, MD 20814-2199 USA
BN 978-1-934874-26-4
PY 2012
BP 3
EP 5
PG 3
WC Fisheries
SC Fisheries
GA BCW30
UT WOS:000311651600001
ER
PT B
AU Liedtke, TL
Rub, AMW
AF Liedtke, Theresa L.
Rub, A. Michelle Wargo
BE Adams, NS
Beeman, JW
Eiler, JH
TI Techniques for Telemetry Transmitter Attachment and Evaluation of
Transmitter Effects on Fish Performance
SO TELEMETRY TECHNIQUES: A USER GUIDE FOR FISHERIES RESEARCH
LA English
DT Article; Book Chapter
ID JUVENILE CHINOOK SALMON; IMPLANTED RADIO TRANSMITTERS; ADULT ATLANTIC
SALMON; DUMMY ACOUSTIC TRANSMITTERS; HYBRID STRIPED BASS; COD
GADUS-MORHUA; SWIMMING PERFORMANCE; RAINBOW-TROUT; INTRAGASTRIC
TRANSMITTERS; ONCORHYNCHUS-TSHAWYTSCHA
C1 [Liedtke, Theresa L.] US Geol Survey, Western Fisheries Res Ctr, Cook, WA 98605 USA.
[Rub, A. Michelle Wargo] NOAA, Fish Ecol Div, NW Fisheries Sci Ctr, Natl Marine Fisheries Serv, Seattle, WA 98112 USA.
RP Liedtke, TL (reprint author), US Geol Survey, Western Fisheries Res Ctr, 5501 A Cook Underwood Rd, Cook, WA 98605 USA.
EM tliedtke@usgs.gov; michelle.rub@noaa.gov
NR 172
TC 11
Z9 11
U1 0
U2 8
PU AMER FISHERIES SOC
PI BETHESDA
PA 5410 GROSVENOR LANE, STE 110, BETHESDA, MD 20814-2199 USA
BN 978-1-934874-26-4
PY 2012
BP 45
EP 87
PG 43
WC Fisheries
SC Fisheries
GA BCW30
UT WOS:000311651600004
ER
PT B
AU Eiler, JH
AF Eiler, John H.
BE Adams, NS
Beeman, JW
Eiler, JH
TI Tracking Aquatic Animals with Radio Telemetry
SO TELEMETRY TECHNIQUES: A USER GUIDE FOR FISHERIES RESEARCH
LA English
DT Article; Book Chapter
ID SALMON ONCORHYNCHUS-NERKA; SOCKEYE-SALMON; CHINOOK SALMON; RIVER;
RADIOTELEMETRY; MIGRATION; TRIANGULATION; MOVEMENT; COLUMBIA; TROUT
C1 Natl Marine Fisheries Serv, Alaska Fisheries Sci Ctr, Auke Bay Labs, Juneau, AK 99801 USA.
RP Eiler, JH (reprint author), Natl Marine Fisheries Serv, Alaska Fisheries Sci Ctr, Auke Bay Labs, TSMRI 17109 Point Lena Loop Rd, Juneau, AK 99801 USA.
EM john.eiler@noaa.gov
NR 47
TC 5
Z9 5
U1 0
U2 3
PU AMER FISHERIES SOC
PI BETHESDA
PA 5410 GROSVENOR LANE, STE 110, BETHESDA, MD 20814-2199 USA
BN 978-1-934874-26-4
PY 2012
BP 163
EP 204
PG 42
WC Fisheries
SC Fisheries
GA BCW30
UT WOS:000311651600007
ER
PT B
AU Corbett, SC
Brenkman, SJ
AF Corbett, Stephen C.
Brenkman, Samuel J.
BE Adams, NS
Beeman, JW
Eiler, JH
TI Two Case Studies From Washington's Olympic Peninsula: Radio Telemetry
Reveals Bull Trout Anadromy and Establishes Baseline Information Prior
to Dam Removal
SO TELEMETRY TECHNIQUES: A USER GUIDE FOR FISHERIES RESEARCH
LA English
DT Article; Book Chapter
ID SALMON ONCORHYNCHUS-TSHAWYTSCHA; ADULT CHINOOK SALMON; HABITAT USE;
CUTTHROAT TROUT; MIGRATORY PATTERNS; BLACKFOOT RIVER; MOVEMENTS;
MONTANA; RADIOTELEMETRY; SYSTEM
C1 [Corbett, Stephen C.] Pacific States Marine Fisheries Commiss, NW Fisheries Sci Ctr, Seattle, WA 98112 USA.
[Brenkman, Samuel J.] Natl Pk Serv, Dept Interior, Port Angeles, WA 98362 USA.
RP Corbett, SC (reprint author), Pacific States Marine Fisheries Commiss, NW Fisheries Sci Ctr, Seattle, WA 98112 USA.
EM Steve.Corbett@noaa.gov; sam_brenkman@nps.gov
NR 28
TC 0
Z9 0
U1 1
U2 3
PU AMER FISHERIES SOC
PI BETHESDA
PA 5410 GROSVENOR LANE, STE 110, BETHESDA, MD 20814-2199 USA
BN 978-1-934874-26-4
PY 2012
BP 207
EP 220
PG 14
WC Fisheries
SC Fisheries
GA BCW30
UT WOS:000311651600008
ER
PT B
AU Perry, RW
Castro-Santos, T
Holbrook, CM
Sandford, BP
AF Perry, Russell W.
Castro-Santos, Theodore
Holbrook, Christopher M.
Sandford, Benjamin P.
BE Adams, NS
Beeman, JW
Eiler, JH
TI Using Mark-Recapture Models to Estimate Survival from Telemetry Data
SO TELEMETRY TECHNIQUES: A USER GUIDE FOR FISHERIES RESEARCH
LA English
DT Article; Book Chapter
ID CAPTURE-RECAPTURE; RADIOTELEMETRY; ANIMALS; HYPOTHESES
C1 [Perry, Russell W.] US Geol Survey, Western Fisheries Res Ctr, Columbia River Res Lab, Cook, WA 98605 USA.
[Castro-Santos, Theodore] US Geol Survey, Leetown Sci Ctr, Conte Anadromous Fish Res Ctr, Turners Falls, MA 01376 USA.
[Holbrook, Christopher M.] US Geol Survey, Great Lakes Sci Ctr, Hammond Bay Biol Stn, Western Basin Ecosyst Branch, Millersburg, MI 49759 USA.
[Sandford, Benjamin P.] NOAA, Pasco, WA 99361 USA.
RP Perry, RW (reprint author), US Geol Survey, Western Fisheries Res Ctr, Columbia River Res Lab, 5501 A Cook Underwood Rd, Cook, WA 98605 USA.
EM rperry@usgs.gov; tcastrosantos@usgs.gov; cholbrook@usgs.gov;
ben.sandford@noaa.gov
OI Castro-Santos, Theodore/0000-0003-2575-9120
NR 26
TC 6
Z9 6
U1 0
U2 4
PU AMER FISHERIES SOC
PI BETHESDA
PA 5410 GROSVENOR LANE, STE 110, BETHESDA, MD 20814-2199 USA
BN 978-1-934874-26-4
PY 2012
BP 453
EP 475
PG 23
WC Fisheries
SC Fisheries
GA BCW30
UT WOS:000311651600019
ER
PT B
AU Kasinath, RK
Klem, M
Usselman, R
AF Kasinath, Rajendra K.
Klem, Michael
Usselman, Robert
GP TMS
TI Citrate Mediated Wet Chemical Synthesis of Fe Doped Nanoapatites: A
Model for Singly Doped Multifunctional Nanostructures
SO TMS 2012 141ST ANNUAL MEETING & EXHIBITION - SUPPLEMENTAL PROCEEDINGS,
VOL 2: MATERIALS PROPERTIES, CHARACTERIZATION, AND MODELING
LA English
DT Proceedings Paper
CT Symposium on Materials Properties, Characterization and Modeling from
141st TMS Annual Meeting and Exhibition
CY MAR 11-15, 2012
CL Orlando, CA
SP TMS
DE Nanoparticles; Apatites; Multifunctional
ID RIETVELD REFINEMENT; NANOPARTICLES; SILICA; POWDERS
AB The structurally forgiving nature of the apatite lattice may be employed to synthesize functional nano-hydroxyapatite (nHA) particles with calcium site substitution by metal atom doping. In this work we present an effective green synthetic methodology to synthesize equiaxed and highly dispersed Fe(III)-doped multifunctional nHA particles by controlled aging of a calcium phosphate precursor. It was seen that doping in the HA lattice, while employing this wet chemical technique, does not induce a structural change even with 30 mol. % Fe-substitution. The Fe(III)-doped nanoparticles exhibited both magnetic and luminescent properties. The magnetic properties were measured employing magnetometry and SQUID. The Fe doped nHA particles also exhibited green fluorescence under UV excitation. While single property modulation in nHA has been previously shown by doping with metal atoms, herein we show that it is possible to design nHA particles, and perhaps others, with multifunctional properties with only one dopant.
C1 [Kasinath, Rajendra K.] Montana Tech Univ, Dept Environm Engn, Butte, MT USA.
[Kasinath, Rajendra K.; Klem, Michael] Montana Tech Univ, Ctr Adv Supramolecular & Nano Syst CASANS, Butte, MT USA.
[Klem, Michael] Montana Tech Univ, Dept Chem & Geochem, Butte, MT USA.
[Usselman, Robert] Natl Inst Stand & Technol, Boulder, CO 80305 USA.
RP Kasinath, RK (reprint author), Montana Tech Univ, Dept Environm Engn, Butte, MT USA.
EM rkasinath@mtech.edu; mklem@mtech.edu
NR 13
TC 0
Z9 0
U1 0
U2 2
PU MINERALS, METALS & MATERIALS SOC
PI WARRENDALE
PA 184 THORN HILL RD, WARRENDALE, PA 15086-7514 USA
BN 978-1-118-35700-2; 978-1-118-29609-7
PY 2012
BP 11
EP 17
PG 7
WC Nanoscience & Nanotechnology; Metallurgy & Metallurgical Engineering
SC Science & Technology - Other Topics; Metallurgy & Metallurgical
Engineering
GA BCV71
UT WOS:000311607900002
ER
PT J
AU Dennis, T
Schlager, JB
Yuan, HC
Wang, Q
Friedman, D
AF Dennis, Tasshi
Schlager, John B.
Yuan, Hao-Chih
Wang, Qi
Friedman, Daniel
GP IEEE
TI A Novel Solar Simulator Based on a Super-Continuum Laser
SO 2012 38TH IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE (PVSC)
LA English
DT Proceedings Paper
CT 38th IEEE Photovoltaic Specialists Conference (PVSC)
CY JUN 03-08, 2012
CL Austin, TX
SP IEEE, IEEE Electron Devides Soc (EDS), IEEE Photon Soc, IEEE Power & Energy Soc (PES), HelioVolt Corp, SunShot, US Dept Energy
AB The design and operation of a novel solar simulator based on a high-power, super-continuum fiber laser is described in this work. The simulator features a multi-sun irradiance with continuous spectral coverage from the visible to the infrared. By use of a prism-based spectral shaper, the simulator can be matched to any desired spectral profile, including the ASTM G-173-03 air-mass 1.5 direct or other global reference spectra. The simulator has been effectively used to measure the efficiency of gallium-arsenide (GaAs) and crystalline silicon (Si) solar cells, showing good agreement with independent measurements. The pulsed temporal characteristic of the simulator was studied and shown to have a negligible influence on measurements of cell efficiency for both GaAs and Si materials. The ability to arbitrarily shape the spectrum of the simulator may find application in multi-junction testing, and the potential for diffraction-limited focusing could enable localized excitation of advanced photovoltaic materials.
C1 [Dennis, Tasshi; Schlager, John B.] NIST, Boulder, CO USA.
RP Dennis, T (reprint author), NIST, Boulder, CO USA.
NR 6
TC 2
Z9 2
U1 0
U2 3
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-4673-0066-7
PY 2012
BP 1845
EP 1848
PG 4
WC Energy & Fuels; Engineering, Electrical & Electronic; Physics, Applied
SC Energy & Fuels; Engineering; Physics
GA BCD90
UT WOS:000309917802029
ER
PT J
AU Frantz, JA
Bekele, RY
Myers, JD
Nguyen, VQ
Sanghera, JS
Maximenko, SI
Gonzalez, M
Tischler, JG
Walters, RJ
Leite, MS
Bruce, A
Frolov, SV
Cyrus, M
AF Frantz, Jesse A.
Bekele, Robel Y.
Myers, Jason D.
Nguyen, Vinh Q.
Sanghera, Jasbinder S.
Maximenko, Sergey I.
Gonzalez, Maria
Tischler, Joseph G.
Walters, Robert J.
Leite, Marina S.
Bruce, Allan
Frolov, Sergey V.
Cyrus, Michael
GP IEEE
TI Structural and Electronic Characteristics of Cu(In,Ga)Se-2 Thin Films
Sputtered From Quaternary Targets
SO 2012 38TH IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE (PVSC)
LA English
DT Proceedings Paper
CT 38th IEEE Photovoltaic Specialists Conference (PVSC)
CY JUN 03-08, 2012
CL Austin, TX
SP IEEE, IEEE Electron Devides Soc (EDS), IEEE Photon Soc, IEEE Power & Energy Soc (PES), HelioVolt Corp, SunShot, US Dept Energy
DE copper compounds; grain size; photovoltaic cells; solar energy;
sputtering; thin film devices; thin films
AB Although the advantages of sputter deposition for large area, uniform deposition are well known, it has long been believed that sputtering Cu(In,Ga)Se-2 (CIGS) from a quaternary sputtering target yields films with morphological and electronic properties that make them unsuitable for use in high-efficiency photovoltaic devices. Recent work, however, has demonstrated that this deposition method can produce dense, polycrystalline, highly oriented films with the desired stoichiometry. Devices built with these films exhibit efficiencies >10%. While effective parameters for target composition and deposition conditions have been achieved, variation from these conditions can result in a wide array of morphologies, even while composition remains near that of stoichiometric CIGS. In this paper, we review the broad range of structural and electronic properties that result from various sets of target compositions and deposition conditions. Films deposited under some conditions are similar in important respects - their composition, a dense structure composed of similar to 1 mu m sized grains, and the presence of a MoSe2 layer - to those of evaporated CIGS. We discuss how these results point towards the possibility of higher-efficiency sputtered CIGS.
C1 [Frantz, Jesse A.; Myers, Jason D.; Nguyen, Vinh Q.; Sanghera, Jasbinder S.; Tischler, Joseph G.; Walters, Robert J.] USN, Res Lab, Washington, DC 20375 USA.
[Bekele, Robel Y.] Univ Res Fdn, Greenbelt, MD 20770 USA.
[Maximenko, Sergey I.; Gonzalez, Maria] Sotera Def Solut, Crofton, MD 21114 USA.
[Leite, Marina S.] CNST, Natl Inst Stand & Technol, Gaithersburg, MD 20899 USA.
[Leite, Marina S.] Univ Maryland, Maryland Nanoctr, College Pk, MD 20742 USA.
[Bruce, Allan; Frolov, Sergey V.; Cyrus, Michael] Sunlight Photon Inc, South Plainfield, NJ 07080 USA.
RP Frantz, JA (reprint author), USN, Res Lab, Washington, DC 20375 USA.
NR 6
TC 1
Z9 1
U1 3
U2 10
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-4673-0066-7
PY 2012
BP 3098
EP 3101
PG 4
WC Energy & Fuels; Engineering, Electrical & Electronic; Physics, Applied
SC Energy & Fuels; Engineering; Physics
GA BCD90
UT WOS:000309917803085
ER
PT J
AU Yoon, HP
Ruzmetov, D
Haney, PM
Leite, MS
Hamadani, BH
Talin, AA
Zhitenev, NB
AF Yoon, Heayoung P.
Ruzmetov, Dmitry
Haney, Paul M.
Leite, Marina S.
Hamadani, Behrang H.
Talin, A. Alec
Zhitenev, Nikolai B.
GP IEEE
TI High-Resolution Local Current Measurement of CdTe Solar Cells
SO 2012 38TH IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE (PVSC)
LA English
DT Proceedings Paper
CT 38th IEEE Photovoltaic Specialists Conference (PVSC)
CY JUN 03-08, 2012
CL Austin, TX
SP IEEE, IEEE Electron Devides Soc (EDS), IEEE Photon Soc, IEEE Power & Energy Soc (PES), HelioVolt Corp, SunShot, US Dept Energy
DE solar cells; thin film; CdTe; grain boundary; electron beam induced
current; EBIC; cross section; focused ion beam
ID MICROSCOPY
AB We investigate local electronic properties of CdTe solar cells using electron beam to excite electron-hole pairs and evaluate spatially resolved photocurrent characteristics. Standard semiconductor processes were used to fabricate Ohmic metal contacts on the surface of p-type CdTe/n-type CdS device extracted from a commercial solar panel. An ion milling process was used to prepare cross-sections of the devices. Local injection of carriers was controlled by an acceleration voltage of electron beam ( 1 kV to 30 kV) in a scanning electron microscope, and the results were correlated with the local morphology, microstructure, and chemical composition of the devices.
C1 [Yoon, Heayoung P.; Ruzmetov, Dmitry; Haney, Paul M.; Leite, Marina S.; Talin, A. Alec; Zhitenev, Nikolai B.] NIST, Ctr Nanoscale Sci & Technol, Gaithersburg, MD 20899 USA.
[Hamadani, Behrang H.] Natl Inst Stand & Technol, Energy & Environm div, Gaithersburg, MD 20899 USA.
[Yoon, Heayoung P.; Ruzmetov, Dmitry; Leite, Marina S.] Univ Maryland, Mary land Nanoctr, College Pk, MD 20742 USA.
RP Yoon, HP (reprint author), NIST, Ctr Nanoscale Sci & Technol, Gaithersburg, MD 20899 USA.
RI Zhitenev, Nikolai/N-1780-2014
FU Cooperative Research Agreement between the University of Maryland;
National Institute of Standards and Technology Center for Nanoscale
Science and Technology [70NANBlOH193]; University of Maryland
FX The authors thank Glenn Holland for sample preparations. Also we thank
David Gundlach and James Basham for valuable discussions. H.P.Yoon,
D.Ruzmetov, M.S.Leite acknowledge support under the Cooperative Research
Agreement between the University of Maryland and the National Institute
of Standards and Technology Center for Nanoscale Science and Technology,
Award 70NANBlOH193, through the University of Maryland.
NR 9
TC 1
Z9 1
U1 0
U2 13
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-4673-0066-7
PY 2012
BP 3217
EP 3219
PG 3
WC Energy & Fuels; Engineering, Electrical & Electronic; Physics, Applied
SC Energy & Fuels; Engineering; Physics
GA BCD90
UT WOS:000309917803111
ER
PT J
AU He, YB
Zhou, W
Krishna, R
Chen, BL
AF He, Yabing
Zhou, Wei
Krishna, Rajamani
Chen, Banglin
TI Microporous metal-organic frameworks for storage and separation of small
hydrocarbons
SO CHEMICAL COMMUNICATIONS
LA English
DT Article
ID POROUS COORDINATION-POLYMER; HIGHLY SELECTIVE SEPARATION; CARBON-DIOXIDE
CAPTURE; PRESSURE METHANE ADSORPTION; GAS-SORPTION PROPERTIES; ACETYLENE
STORAGE; ROOM-TEMPERATURE; SMALL MOLECULES; KINETIC SEPARATION;
CHROMATOGRAPHIC-SEPARATION
AB Hydrocarbons are very important energy resources and raw materials for some industrially important products and fine chemicals. There is a need for the discovery of better materials that offer enhanced capacities for safe storage of hydrocarbons. Furthermore, the development of improved separation technologies will lead to significant reduction in energy requirements and costs. In this feature article, we provide an overview of the current status of the emerging microporous metal-organic frameworks for the storage and separation of small hydrocarbons.
C1 [He, Yabing; Chen, Banglin] Univ Texas San Antonio, Dept Chem, San Antonio, TX 78249 USA.
[Zhou, Wei] NIST Ctr Neutron Res, Gaithersburg, MD 20899 USA.
[Zhou, Wei] Univ Maryland, Dept Mat Sci & Engn, College Pk, MD 20742 USA.
[Krishna, Rajamani] Univ Amsterdam, Vant Hoff Inst Mol Sci, NL-1098 XH Amsterdam, Netherlands.
RP Chen, BL (reprint author), Univ Texas San Antonio, Dept Chem, 1 UTSA Circle, San Antonio, TX 78249 USA.
EM Banglin.Chen@utsa.edu
RI Zhou, Wei/C-6504-2008; He, Yabing/H-3314-2012; Chen,
Banglin/F-5461-2010; Krishna, Rajamani/A-1098-2012
OI Zhou, Wei/0000-0002-5461-3617; Chen, Banglin/0000-0001-8707-8115;
Krishna, Rajamani/0000-0002-4784-8530
FU Welch Foundation [AX-1730]
FX This work was supported by an AX-1730 from Welch Foundation (BC).
NR 197
TC 148
Z9 151
U1 16
U2 161
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1359-7345
J9 CHEM COMMUN
JI Chem. Commun.
PY 2012
VL 48
IS 97
BP 11813
EP 11831
DI 10.1039/c2cc35418g
PG 19
WC Chemistry, Multidisciplinary
SC Chemistry
GA 039YP
UT WOS:000311284900001
PM 23086227
ER
PT J
AU Baker, JD
Howell, EA
Polovina, JJ
AF Baker, Jason D.
Howell, Evan A.
Polovina, Jeffrey J.
TI Relative influence of climate variability and direct anthropogenic
impact on a sub-tropical Pacific top predator, the Hawaiian monk seal
SO MARINE ECOLOGY PROGRESS SERIES
LA English
DT Article
DE Pacific Decadal Oscillation; Monachus schauinslandii; Climate change;
Northwestern Hawaiian Islands; Population dynamics; Anthropogenic
disturbance
ID ZONE CHLOROPHYLL FRONT; REGIME SHIFT DETECTION; MONACHUS-SCHAUINSLANDI;
NORTH PACIFIC; SURVIVAL; ISLANDS; ECOSYSTEM; SIZE; PRODUCTIVITY;
ABUNDANCE
AB Abundance trends of Hawaiian monk seals Monachus schauinslandi at 6 subpopulations throughout the Northwestern Hawaiian Islands (NWHI) have fluctuated considerably during the past 5 decades. Direct human impacts have been widely accepted as the primary cause of previous monk seal population declines and, consequently, much conservation effort has focused on minimizing these threats. Yet climate variability has been increasingly identified as a factor influencing monk seal demography. We endeavored to evaluate the relative influence of climate versus direct anthropogenic impacts on historic trends in monk seal populations. Periods of growth and decline in monk seal abundance at 4 subpopulations were associated with positive and negative phases, respectively, of the Pacific Decadal Oscillation (PDO). Moreover, PDO regime shifts were followed, after approximately 2 yr lags, by corresponding changes in monk seal abundance trajectories, especially in the absence confounding human impacts. We propose that the PDO is a proxy for varying productivity in the northern NWHI, the effects of which propagate vertically through the food web and are reflected in top predators such as the monk seal. Our results suggest that long-term dynamics of monk seal populations may have been driven as much, if not more, by climate-ocean variability as by direct human activity. In recent years, direct human impacts on monk seals have been virtually eliminated from the NWHI. As such, previous and continued detailed monitoring of Hawaiian monk seal demographics offer a unique opportunity to document and understand how future anticipated global climate change will affect marine ecosystems in the central North Pacific.
C1 [Baker, Jason D.; Howell, Evan A.; Polovina, Jeffrey J.] NOAA, Pacific Islands Fisheries Sci Ctr, Natl Marine Fisheries Serv, Honolulu, HI 96822 USA.
RP Baker, JD (reprint author), NOAA, Pacific Islands Fisheries Sci Ctr, Natl Marine Fisheries Serv, 2570 Dole St, Honolulu, HI 96822 USA.
EM jason.baker@noaa.gov
OI Howell, Evan/0000-0001-9904-4633
NR 57
TC 7
Z9 8
U1 10
U2 77
PU INTER-RESEARCH
PI OLDENDORF LUHE
PA NORDBUNTE 23, D-21385 OLDENDORF LUHE, GERMANY
SN 0171-8630
EI 1616-1599
J9 MAR ECOL PROG SER
JI Mar. Ecol.-Prog. Ser.
PY 2012
VL 469
BP 175
EP 189
DI 10.3354/meps09987
PG 15
WC Ecology; Marine & Freshwater Biology; Oceanography
SC Environmental Sciences & Ecology; Marine & Freshwater Biology;
Oceanography
GA 043OK
UT WOS:000311553600014
ER
PT J
AU Urban, D
AF Urban, Daniel
TI Food habits of Pacific cod and walleye pollock in the northern Gulf of
Alaska
SO MARINE ECOLOGY PROGRESS SERIES
LA English
DT Article
DE Pacific cod; Ealleye pollock; Tanner crab; Northern shrimp;
predator/prey; Gulf of Alaska
ID EASTERN BERING-SEA; THERAGRA-CHALCOGRAMMA; GADUS-MACROCEPHALUS;
FEEDING-HABITS; NICHE OVERLAP; PAVLOF BAY; DIET; PREY; SPECIALIZATION;
VARIABILITY
AB Seasonal variations in the diets of Pacific cod Gadus macrocephalus and walleye pollock Theragra chalcogramma were examined from fish collected during 5 sampling periods from August 1998 to June 1999 in the Kodiak Island area in the Gulf of Alaska. Both species were shown to be generalist predators, eating a wide variety of fish and invertebrates. Pollock, which are limited to pelagic prey, can be considered more specialized than cod. Cod consumed 78 prey items, and pollock consumed 45 prey items, with 28 items shared by both species. Individual pollock, however, typically concentrated on a single prey item, while individual cod stomachs contained a wider variety of prey. The principal prey of Pacific cod was Tanner crab Chionoecetes bairdi, comprising >28% of the cod diet by weight. The most common prey item for walleye pollock was the euphausiid Thysanoessa. Over the 5 sampling periods, the prey evenness and niche width occupied by the 2 species were similar, but seasonal differences were evident.
C1 Natl Marine Fisheries Serv, Alaska Fisheries Sci Ctr, Kodiak Lab, Kodiak, AK 99615 USA.
RP Urban, D (reprint author), Natl Marine Fisheries Serv, Alaska Fisheries Sci Ctr, Kodiak Lab, 301 Res Court, Kodiak, AK 99615 USA.
EM dan.urban@noaa.gov
NR 46
TC 9
Z9 9
U1 1
U2 23
PU INTER-RESEARCH
PI OLDENDORF LUHE
PA NORDBUNTE 23, D-21385 OLDENDORF LUHE, GERMANY
SN 0171-8630
J9 MAR ECOL PROG SER
JI Mar. Ecol.-Prog. Ser.
PY 2012
VL 469
BP 215
EP 222
DI 10.3354/meps10135
PG 8
WC Ecology; Marine & Freshwater Biology; Oceanography
SC Environmental Sciences & Ecology; Marine & Freshwater Biology;
Oceanography
GA 043OK
UT WOS:000311553600017
ER
PT J
AU Saikawa, E
Rigby, M
Prinn, RG
Montzka, SA
Miller, BR
Kuijpers, LJM
Fraser, PJB
Vollmer, MK
Saito, T
Yokouchi, Y
Harth, CM
Muhle, J
Weiss, RF
Salameh, PK
Kim, J
Li, S
Park, S
Kim, KR
Young, D
O'Doherty, S
Simmonds, PG
McCulloch, A
Krummel, PB
Steele, LP
Lunder, C
Hermansen, O
Maione, M
Arduini, J
Yao, B
Zhou, LX
Wang, HJ
Elkins, JW
Hall, B
AF Saikawa, E.
Rigby, M.
Prinn, R. G.
Montzka, S. A.
Miller, B. R.
Kuijpers, L. J. M.
Fraser, P. J. B.
Vollmer, M. K.
Saito, T.
Yokouchi, Y.
Harth, C. M.
Muehle, J.
Weiss, R. F.
Salameh, P. K.
Kim, J.
Li, S.
Park, S.
Kim, K. -R.
Young, D.
O'Doherty, S.
Simmonds, P. G.
McCulloch, A.
Krummel, P. B.
Steele, L. P.
Lunder, C.
Hermansen, O.
Maione, M.
Arduini, J.
Yao, B.
Zhou, L. X.
Wang, H. J.
Elkins, J. W.
Hall, B.
TI Global and regional emission estimates for HCFC-22
SO ATMOSPHERIC CHEMISTRY AND PHYSICS
LA English
DT Article
ID CHEMICAL-TRANSPORT MODELS; EAST-ASIA; TROPOSPHERIC OH; INVERSE; GASES;
SENSITIVITY; HALOCARBONS; CONVECTION; HISTORY; GROWTH
AB HCFC-22 (CHClF2, chlorodifluoromethane) is an ozone-depleting substance (ODS) as well as a significant greenhouse gas (GHG). HCFC-22 has been used widely as a refrigerant fluid in cooling and air-conditioning equipment since the 1960s, and it has also served as a traditional substitute for some chlorofluorocarbons (CFCs) controlled under the Montreal Protocol. A low frequency record on tropospheric HCFC-22 since the late 1970s is available from measurements of the Southern Hemisphere Cape Grim Air Archive (CGAA) and a few Northern Hemisphere air samples (mostly from Trinidad Head) using the Advanced Global Atmospheric Gases Experiment (AGAGE) instrumentation and calibrations. Since the 1990s high-frequency, high-precision, in situ HCFC-22 measurements have been collected at these AGAGE stations. Since 1992, the Global Monitoring Division of the National Oceanic and Atmospheric Administration/Earth System Research Laboratory (NOAA/ESRL) has also collected flasks on a weekly basis from remote sites across the globe and analyzed them for a suite of halocarbons including HCFC-22. Additionally, since 2006 flasks have been collected approximately daily at a number of tower sites across the US and analyzed for halocarbons and other gases at NOAA. All results show an increase in the atmospheric mole fractions of HCFC-22, and recent data show a growth rate of approximately 4% per year, resulting in an increase in the background atmospheric mole fraction by a factor of 1.7 from 1995 to 2009. Using data on HCFC-22 consumption submitted to the United Nations Environment Programme (UNEP), as well as existing bottom-up emission estimates, we first create globally-gridded a priori HCFC-22 emissions over the 15 yr since 1995. We then use the three-dimensional chemical transport model, Model for Ozone and Related Chemical Tracers version 4 (MOZART v4), and a Bayesian inverse method to estimate global as well as regional annual emissions. Our inversion indicates that the global HCFC-22 emissions have an increasing trend between 1995 and 2009. We further find a surge in HCFC-22 emissions between 2005 and 2009 from developing countries in Asia - the largest emitting region including China and India. Globally, substantial emissions continue despite production and consumption being phased out in developed countries currently.
C1 [Saikawa, E.; Rigby, M.; Prinn, R. G.] MIT, Ctr Global Change Sci, Cambridge, MA 02139 USA.
[Rigby, M.; Young, D.; O'Doherty, S.; Simmonds, P. G.; McCulloch, A.] Univ Bristol, Sch Chem, Bristol, Avon, England.
[Montzka, S. A.; Miller, B. R.; Elkins, J. W.; Hall, B.] NOAA, Earth Syst Res Lab, Boulder, CO USA.
[Kuijpers, L. J. M.] Tech Univ Eindhoven, Eindhoven Ctr Sustainabil, NL-5600 MB Eindhoven, Netherlands.
[Fraser, P. J. B.; Krummel, P. B.; Steele, L. P.] CSIRO Marine & Atmospher Res, Ctr Australian Weather & Climate Res, Aspendale, Vic, Australia.
[Vollmer, M. K.] Swiss Fed Labs Mat Sci & Technol, EMPA, Lab Air Pollut & Environm Technol, Dubendorf, Switzerland.
[Saito, T.; Yokouchi, Y.] Natl Inst Environm Studies, Tsukuba, Ibaraki, Japan.
[Harth, C. M.; Muehle, J.; Weiss, R. F.; Salameh, P. K.; Kim, J.] Univ Calif San Diego, Scripps Inst Oceanog, La Jolla, CA 92093 USA.
[Kim, J.; Li, S.; Park, S.; Kim, K. -R.] Seoul Natl Univ, Seoul, South Korea.
[Lunder, C.; Hermansen, O.] Norwegian Inst Air Res, Kjeller, Norway.
[Maione, M.; Arduini, J.] Univ Urbino, I-61029 Urbino, Italy.
[Yao, B.; Zhou, L. X.] China Meteorol Adm, Chinese Acad Meteorol Sci, Beijing, Peoples R China.
[Wang, H. J.] Georgia Inst Technol, Atlanta, GA 30332 USA.
RP Saikawa, E (reprint author), MIT, Ctr Global Change Sci, 77 Massachusetts Ave, Cambridge, MA 02139 USA.
EM esaikawa@mit.edu
RI Krummel, Paul/A-4293-2013; Rigby, Matthew/A-5555-2012; Fraser,
Paul/D-1755-2012; Saito, Takuya/E-5877-2010; Steele, Paul/B-3185-2009;
arduini, jgor/N-2798-2016;
OI Krummel, Paul/0000-0002-4884-3678; Rigby, Matthew/0000-0002-2020-9253;
Montzka, Stephen/0000-0002-9396-0400; Steele, Paul/0000-0002-8234-3730;
arduini, jgor/0000-0002-5199-3853; Saikawa, Eri/0000-0003-3166-8620;
Miller, Benjamin/0000-0003-1647-0122
FU NASA Upper Atmospheric Research Program in the US [NNX11AF17G,
NNX07AF09G, NNX07AE87G]; Defra/DECC; NOAA in the UK; CSIRO; Australian
Government Bureau of Meteorology in Australia; National Research
Foundation of Korea (NRF); Korea government (MEST) [2010-0029119];
Ministry of the Environment of Japan; Global Environment Fund; MOST EU S
& T Cooperative Project [1015]
FX The AGAGE research program is supported by the NASA Upper Atmospheric
Research Program in the US with grants NNX11AF17G to MIT, NNX07AF09G and
NNX07AE87G to SIO, Defra/DECC and NOAA in the UK, CSIRO and the
Australian Government Bureau of Meteorology in Australia. For NOAA
measurements, assistance was provided by C. Siso, L. Miller, D. Mondeel,
A. Andrews, and J. Kofler. NOAA observations and analyses were supported
in part by NOAA's Climate Program Office through its Atmospheric
Chemistry and Composition and Global Carbon Cycle programs. HCFC-22
study at Gosan is supported by the National Research Foundation of Korea
(NRF) grant funded by the Korea government (MEST) (No. 2010-0029119).
HCFC-22 measurements at Zeppelin, Ny-Alesund are supported by the
Norwegian Climate and Pollution Agency. HCFC-22 measurements at
Shangdianzi are supported by the China Meteorological Administration,
Nature Science Foundation of China (41030107) and MOST EU S & T
Cooperative Project (1015). The NIES program is supported by the
Ministry of the Environment of Japan with the Global Environment Fund.
We would like to thank Rona Thompson at the Norwegian Institute for Air
Research, France for providing us the photochemical model results for
O1(D) profile. We would also like to thank Arlyn Andrews and
Pieter Tans for their help for this paper. We thank all the staff at the
AGAGE, AGAGE-affiliates, NOAA and NIES sites for their contributions to
produce high quality measurements of important atmospheric trace gases.
We are also grateful for the constructive comments by the two reviewers
that significantly improved the quality of this paper.
NR 43
TC 14
Z9 16
U1 3
U2 32
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1680-7316
EI 1680-7324
J9 ATMOS CHEM PHYS
JI Atmos. Chem. Phys.
PY 2012
VL 12
IS 21
BP 10033
EP 10050
DI 10.5194/acp-12-10033-2012
PG 18
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 035NR
UT WOS:000310954400002
ER
PT J
AU Lan, X
Talbot, R
Castro, M
Perry, K
Luke, W
AF Lan, X.
Talbot, R.
Castro, M.
Perry, K.
Luke, W.
TI Seasonal and diurnal variations of atmospheric mercury across the US
determined from AMNet monitoring data
SO ATMOSPHERIC CHEMISTRY AND PHYSICS
LA English
DT Article
ID MEASUREMENT NETWORK CAMNET; TOTAL GASEOUS MERCURY; GREAT-SALT-LAKE;
NEW-ENGLAND; INLAND SITES; ANTHROPOGENIC SOURCES; MEDITERRANEAN REGION;
INITIATED REACTIONS; SPECIATED MERCURY; ELEMENTAL MERCURY
AB Speciated atmospheric mercury observations collected over the period from 2008 to 2010 at the Environmental Protection Agency and National Atmospheric Deposition Program Atmospheric Mercury Network sites (AMNet) were analyzed for its spatial, seasonal, and diurnal characteristics across the US. Median values of gaseous elemental mercury (GEM), gaseous oxidized mercury (GOM) and particulate bound mercury (PBM) at 11 different AMNet sites ranged from 148-226 ppqv (1.32-2.02 ng m(-3)), 0.05-1.4 ppqv (0.47-12.4 pg m(-3)) and 0.18-1.5 ppqv (1.61-13.7 pg m(-3)), respectively. Common characteristics of these sites were the similar median levels of GEM as well as its seasonality, with the highest mixing ratios occurring in winter and spring and the lowest in fall. However, discernible differences in monthly average GEM were as large as 30 ppqv, which may be caused by sporadic influence from local emission sources. The largest diurnal variation amplitude of GEM occurred in the summer. Seven rural sites displayed similar GEM summer diurnal patterns, in that the lowest levels appeared in the early morning, and then the GEM mixing ratio increased after sunrise and reached its maxima at noon or in the early afternoon. Unlike GEM, GOM exhibited higher mixing ratios in spring and summer. The largest diurnal variation amplitude of GOM occurred in spring for most AMNet sites. The GOM diurnal minima appeared before sunrise and maxima appeared in the afternoon. The increased GOM mixing ratio in the afternoon indicated a photochemically driven oxidation of GEM resulting in GOM formation. PBM exhibited diurnal fluctuations in summertime. The summertime PBM diurnal pattern displayed daily maxima in the early afternoon and lower mixing ratios at night, implying photochemical production of PBM in summer.
C1 [Lan, X.; Talbot, R.] Univ Houston, Inst Climate & Atmospher Sci, Dept Earth & Atmospher Sci, Houston, TX 77004 USA.
[Castro, M.] Univ Maryland, Ctr Environm Sci, Frostburg, MD 21532 USA.
[Perry, K.] Univ Utah, Salt Lake City, UT 84112 USA.
[Luke, W.] NOAA, Air Resources Lab, Silver Spring, MD 20910 USA.
RP Lan, X (reprint author), Univ Houston, Inst Climate & Atmospher Sci, Dept Earth & Atmospher Sci, Houston, TX 77004 USA.
EM xlan3@uh.edu
RI Castro, Mark/J-6529-2015; Luke, Winston/D-1594-2016
OI Castro, Mark/0000-0002-4279-8204; Luke, Winston/0000-0002-1993-2241
FU Environmental Protection Agency [EP09H000355]; National Oceanographic
and Atmospheric Administration [NA07OAR4600514]
FX We thank the AMNet site operators (John Dalziel, Timothy Chang, Dirk
Felton, Gary Conley, Larry Scrapper, Neil Olson, Eric Miller, Thomas
Holsen) for providing the valuable atmospheric mercury data at all the
observational sites. This work was supported by the Environmental
Protection Agency under contract #EP09H000355 and the National
Oceanographic and Atmospheric Administration under grant
#NA07OAR4600514.
NR 62
TC 24
Z9 24
U1 2
U2 33
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1680-7316
EI 1680-7324
J9 ATMOS CHEM PHYS
JI Atmos. Chem. Phys.
PY 2012
VL 12
IS 21
BP 10569
EP 10582
DI 10.5194/acp-12-10569-2012
PG 14
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 035NR
UT WOS:000310954400035
ER
PT J
AU Colette, A
Granier, C
Hodnebrog, O
Jakobs, H
Maurizi, A
Nyiri, A
Rao, S
Amann, M
Bessagnet, B
D'Angiola, A
Gauss, M
Heyes, C
Klimont, Z
Meleux, F
Memmesheimer, M
Mieville, A
Rouil, L
Russo, F
Schucht, S
Simpson, D
Stordal, F
Tampieri, F
Vrac, M
AF Colette, A.
Granier, C.
Hodnebrog, O.
Jakobs, H.
Maurizi, A.
Nyiri, A.
Rao, S.
Amann, M.
Bessagnet, B.
D'Angiola, A.
Gauss, M.
Heyes, C.
Klimont, Z.
Meleux, F.
Memmesheimer, M.
Mieville, A.
Rouil, L.
Russo, F.
Schucht, S.
Simpson, D.
Stordal, F.
Tampieri, F.
Vrac, M.
TI Future air quality in Europe: a multi-model assessment of projected
exposure to ozone
SO ATMOSPHERIC CHEMISTRY AND PHYSICS
LA English
DT Article
ID BIOMASS BURNING EMISSIONS; GREENHOUSE-GAS EMISSIONS; TROPOSPHERIC OZONE;
TRANSPORT MODEL; CLIMATE-CHANGE; PRECIPITATION; SIMULATIONS; ENSEMBLE;
IMPACT; VARIABILITY
AB In order to explore future air quality in Europe at the 2030 horizon, two emission scenarios developed in the framework of the Global Energy Assessment including varying assumptions on climate and energy access policies are investigated with an ensemble of six regional and global atmospheric chemistry transport models.
A specific focus is given in the paper to the assessment of uncertainties and robustness of the projected changes in air quality. The present work relies on an ensemble of chemistry transport models giving insight into the model spread. Both regional and global scale models were involved, so that the ensemble benefits from medium-resolution approaches as well as global models that capture long-range transport. For each scenario a whole decade is modelled in order to gain statistical confidence in the results. A statistical downscaling approach is used to correct the distribution of the modelled projection. Last, the modelling experiment is related to a hind-cast study published earlier, where the performances of all participating models were extensively documented.
The analysis is presented in an exposure-based framework in order to discuss policy relevant changes. According to the emission projections, ozone precursors such as NOx will drop down to 30% to 50% of their current levels, depending on the scenario. As a result, annual mean O-3 will slightly increase in NOx saturated areas but the overall O-3 burden will decrease substantially. Exposure to detrimental O-3 levels for health (SOMO35) will be reduced down to 45% to 70% of their current levels. And the fraction of stations where present-day exceedences of daily maximum O-3 is higher than 120 mu g m(-3) more than 25 days per year will drop from 43% down to 2 to 8 %.
We conclude that air pollution mitigation measures (present in both scenarios) are the main factors leading to the improvement, but an additional cobenefit of at least 40% (depending on the indicator) is brought about by the climate policy.
C1 [Colette, A.; Bessagnet, B.; Meleux, F.; Rouil, L.; Schucht, S.] Inst Natl Environm Ind & Risques INERIS, Verneuil En Halatte, France.
[Granier, C.; D'Angiola, A.] Univ Paris 06, CNRS INSU, LATMOS IPSL, Paris, France.
[Granier, C.] NOAA, Earth Syst Res Lab, Boulder, CO USA.
[Granier, C.] Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA.
[Granier, C.] Max Planck Inst Meteorol, Hamburg, Germany.
[Hodnebrog, O.; Stordal, F.] Univ Oslo, Oslo, Norway.
[Jakobs, H.; Memmesheimer, M.] FRIUUK, Cologne, Germany.
[Maurizi, A.; Russo, F.] CNR, Inst Atmospher Sci & Climate, Bologna, Italy.
[Nyiri, A.; Gauss, M.; Simpson, D.] Meteorol Inst Met No, Oslo, Norway.
[Rao, S.; Amann, M.; Heyes, C.; Klimont, Z.] Int Inst Appl Syst Anal, A-2361 Laxenburg, Austria.
[Tampieri, F.] ENEA, Bologna, Italy.
[Mieville, A.] Lab Aerol, Toulouse, France.
[Simpson, D.] Chalmers, S-41296 Gothenburg, Sweden.
[Vrac, M.] UVSQ, CNRS INSU, CEA, Lab Sci Climat & Environm,IPSL, Gif Sur Yvette, France.
RP Colette, A (reprint author), Inst Natl Environm Ind & Risques INERIS, Verneuil En Halatte, France.
EM augustin.colette@ineris.fr
RI Simpson, David/A-3313-2009; Granier, Claire/D-5360-2013; Hodnebrog,
Oivind/F-5539-2015; Klimont, Zbigniew/P-7641-2015; Bessagnet,
Bertrand/O-2969-2016; Manager, CSD Publications/B-2789-2015; maurizi,
alberto/D-5031-2017
OI Simpson, David/0000-0001-9538-3208; Stordal, Frode/0000-0002-5190-6473;
Granier, Claire/0000-0001-7344-7995; Hodnebrog,
Oivind/0000-0001-5233-8992; Klimont, Zbigniew/0000-0003-2630-198X;
Bessagnet, Bertrand/0000-0003-2062-4681; maurizi,
alberto/0000-0003-4563-9636
FU European Union [212095, 265148, 283576, 282910]; Research Council of
Norway [188134/E10]
FX The research leading to these results has received funding from the
European Union's Seventh Framework Programme (FP7/2007-2013) under grant
agreement no. 212095 (CityZen), no. 265148 (PEGASOS), no. 283576
(MACC-II), and no. 282910 (ECLAIRE). The French Research Programme
Primequal is also acknowledged (Salut'AIR), as well as EMEP under UNECE.
OH has also received funding from the Research Council of Norway
(project no. 188134/E10).
NR 58
TC 25
Z9 25
U1 2
U2 26
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1680-7316
J9 ATMOS CHEM PHYS
JI Atmos. Chem. Phys.
PY 2012
VL 12
IS 21
BP 10613
EP 10630
DI 10.5194/acp-12-10613-2012
PG 18
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 035NR
UT WOS:000310954400038
ER
PT J
AU Mayr, J
Jedrzejewski, J
Uhlmann, E
Donmez, MA
Knapp, W
Hartig, F
Wendt, K
Moriwaki, T
Shore, P
Schmitt, R
Brecher, C
Wurz, T
Wegener, K
AF Mayr, Josef
Jedrzejewski, Jerzy
Uhlmann, Eckart
Donmez, M. Alkan
Knapp, Wolfgang
Haertig, Frank
Wendt, Klaus
Moriwaki, Toshimichi
Shore, Paul
Schmitt, Robert
Brecher, Christian
Wuerz, Timo
Wegener, Konrad
TI Thermal issues in machine tools
SO CIRP ANNALS-MANUFACTURING TECHNOLOGY
LA English
DT Article; Proceedings Paper
CT 62nd General Assembly of CIRP
CY AUG 19-25, 2012
CL Hong Kong, PEOPLES R CHINA
DE Machine tool; Thermal error; Compensation
ID HIGH-SPEED SPINDLES; REAL-TIME ESTIMATION; ERROR COMPENSATION;
THERMOELASTIC BEHAVIOR; BALL BAR; PART II; DEFORMATION; MODEL;
IDENTIFICATION; NETWORK
AB This paper presents a review of the latest research activities and gives an overview of the state of the art in understanding changes in machine tool performance due to changes in thermal conditions (thermal errors of machine tools). The topics are focused on metal cutting machine tools, especially on turning and milling machines as well as machining centres. The topics of the paper thermal issues in machine tools include measurement of temperatures and displacements, especially displacements at the tool centre point, computations of thermal errors of machine tools, and reduction of thermal errors. Computing the thermal errors of machine tools include both, temperature distribution and displacements. Shortly addressed is also to avoid thermal errors with temperature control, the influence of fluids and a short link to energy efficiency of machine tools. The paper presents the summary of research work in the past and current. Research challenges in order to achieve a thermal stable machine tool are discussed. The paper apprehend itself as an update and not a substitution of two published keynote papers of Bryan et al. [28] in 1990 and Weck et al. [199] in 1995. (C) 2012 CIRP.
C1 [Mayr, Josef; Knapp, Wolfgang; Wegener, Konrad] Swiss Fed Inst Technol, Zurich, Switzerland.
[Mayr, Josef] MCI, Innsbruck, Austria.
[Jedrzejewski, Jerzy] Wroclaw Univ Technol, PL-50370 Wroclaw, Poland.
[Uhlmann, Eckart] TU Berlin, Inst Machine Tools & Factory Management IWF, Berlin, Germany.
[Donmez, M. Alkan] NIST, Gaithersburg, MD 20899 USA.
[Haertig, Frank; Wendt, Klaus] PTB, Braunschweig, Germany.
[Moriwaki, Toshimichi] Setsuan Univ, Osaka, Japan.
[Shore, Paul] Precis Engn Ctr, Cranfield, Beds, England.
[Schmitt, Robert; Brecher, Christian] Lab Machine Tools & Prod Engn WZL, Aachen, Germany.
[Wuerz, Timo] Verband Deutsch Maschinen & Anlagenbau eV VDMA, Frankfurt, Germany.
RP Knapp, W (reprint author), Swiss Fed Inst Technol, Zurich, Switzerland.
EM ingbuero.knapp@bluewin.ch
NR 205
TC 97
Z9 110
U1 12
U2 99
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0007-8506
EI 1726-0604
J9 CIRP ANN-MANUF TECHN
JI CIRP Ann-Manuf. Technol.
PY 2012
VL 61
IS 2
BP 771
EP 791
DI 10.1016/j.cirp.2012.05.008
PG 21
WC Engineering, Industrial; Engineering, Manufacturing
SC Engineering
GA 010GI
UT WOS:000309082300009
ER
PT J
AU Dunn, RJH
Willett, KM
Thorne, PW
Woolley, EV
Durre, I
Dai, A
Parker, DE
Vose, RS
AF Dunn, R. J. H.
Willett, K. M.
Thorne, P. W.
Woolley, E. V.
Durre, I.
Dai, A.
Parker, D. E.
Vose, R. S.
TI HadISD: a quality-controlled global synoptic report database for
selected variables at long-term stations from 1973-2011
SO CLIMATE OF THE PAST
LA English
DT Article
ID THUNDERSTORM FREQUENCIES; SURFACE HUMIDITY; TRENDS; PRECIPITATION
AB This paper describes the creation of HadISD: an automatically quality-controlled synoptic resolution dataset of temperature, dewpoint temperature, sea-level pressure, wind speed, wind direction and cloud cover from global weather stations for 1973-2011. The full dataset consists of over 6000 stations, with 3427 long-term stations deemed to have sufficient sampling and quality for climate applications requiring sub-daily resolution. As with other surface datasets, coverage is heavily skewed towards Northern Hemisphere mid-latitudes.
The dataset is constructed from a large pre-existing ASCII flatfile data bank that represents over a decade of substantial effort at data retrieval, reformatting and provision. These raw data have had varying levels of quality control applied to them by individual data providers. The work proceeded in several steps: merging stations with multiple reporting identifiers; reformatting to netCDF; quality control; and then filtering to form a final dataset. Particular attention has been paid to maintaining true extreme values where possible within an automated, objective process. Detailed validation has been performed on a subset of global stations and also on UK data using known extreme events to help finalise the QC tests. Further validation was performed on a selection of extreme events world-wide (Hurricane Katrina in 2005, the cold snap in Alaska in 1989 and heat waves in SE Australia in 2009). Some very initial analyses are performed to illustrate some of the types of problems to which the final data could be applied. Although the filtering has removed the poorest station records, no attempt has been made to homogenise the data thus far, due to the complexity of retaining the true distribution of high-resolution data when applying adjustments. Hence non-climatic, time-varying errors may still exist in many of the individual station records and care is needed in inferring long-term trends from these data.
This dataset will allow the study of high frequency variations of temperature, pressure and humidity on a global basis over the last four decades. Both individual extremes and the overall population of extreme events could be investigated in detail to allow for comparison with past and projected climate. A version-control system has been constructed for this dataset to allow for the clear documentation of any updates and corrections in the future.
C1 [Dunn, R. J. H.; Willett, K. M.; Parker, D. E.] Met Off Hadley Ctr, Exeter EX1 3PB, Devon, England.
[Thorne, P. W.] N Carolina State Univ, Cooperat Inst Climate & Satellites, Asheville, NC 28801 USA.
[Thorne, P. W.; Durre, I.; Vose, R. S.] NOAA, Natl Climat Data Ctr, Asheville, NC 28801 USA.
[Dai, A.] Natl Ctr Atmospher Res, Boulder, CO 80307 USA.
[Woolley, E. V.] Met Off Hadley Ctr, Exeter EX1 3PB, Devon, England.
RP Dunn, RJH (reprint author), Met Off Hadley Ctr, FitzRoy Rd, Exeter EX1 3PB, Devon, England.
EM robert.dunn@metoffice.gov.uK
RI Thorne, Peter/F-2225-2014; Dai, Aiguo/D-3487-2009; Dunn,
Robert/O-5910-2016
OI Thorne, Peter/0000-0003-0485-9798; Dunn, Robert/0000-0003-2469-5989
FU DECC/Defra Met Office Hadley Centre [GA01101]; NCDC; Met Office PHEATS;
US National Science Foundation
FX The Met Office Hadley Centre authors were supported by the Joint
DECC/Defra Met Office Hadley Centre Climate Programme (GA01101). Much of
P. W. Thorne's early effort was supported by NCDC, and the Met Office
PHEATS contract. The National Center for Atmospheric Research is
sponsored by the US National Science Foundation. E. V. Woolley undertook
work as part of the Met Office summer student placement scheme whilst an
undergraduate at Exeter University. We thank Peter Olsson (AEFF, UAA)
for assistance.
NR 24
TC 27
Z9 27
U1 0
U2 17
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1814-9324
J9 CLIM PAST
JI Clim. Past.
PY 2012
VL 8
IS 5
BP 1649
EP 1679
DI 10.5194/cp-8-1649-2012
PG 31
WC Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences
SC Geology; Meteorology & Atmospheric Sciences
GA 029BU
UT WOS:000310470600019
ER
PT J
AU Brioude, J
Angevine, WM
McKeen, SA
Hsie, EY
AF Brioude, J.
Angevine, W. M.
McKeen, S. A.
Hsie, E. -Y.
TI Numerical uncertainty at mesoscale in a Lagrangian model in complex
terrain
SO GEOSCIENTIFIC MODEL DEVELOPMENT
LA English
DT Article
ID STILT MODEL
AB Recently, it has been shown that mass conservation in Lagrangian models is improved by using time-average winds out of Eulerian models. In this study, we evaluate the mass conservation and trajectory uncertainties in complex terrain at mesoscale using the FLEXPART Lagrangian particle dispersion model coupled with the WRF mesoscale model. The specific form of vertical wind used is found to have a large effect. Time average wind with time average sigma dot (sigma) over dot, instantaneous wind with geometric cartesian vertical wind (w) and instantaneous wind with (sigma) over dot are used to simulate mixing ratios of a passive tracer in forward and backward runs using different time interval outputs and horizontal resolutions in California. Mass conservation in the FLEXPART model was not an issue when using time-average wind or instantaneous wind with w. However, mass was poorly conserved using instantaneous wind with w, with a typical variation of 25% within 24 h.
Uncertainties in surface residence time (a backtrajectory product commonly used in source receptor studies or inverse modeling) calculated for each backtrajectory run were also analyzed. The smallest uncertainties were systematically found when using time-average wind. Uncertainties using instantaneous wind with (sigma) over dot were slightly larger, as long as the time interval of output was sufficiently small. The largest uncertainties were found when using instantaneous wind with w. Those uncertainties were found to be linearly correlated with the local average gradient of orography. Differences in uncertainty were much smaller when trajectories were calculated over flat terrain. For a typical run at mesoscale in complex terrain, 4 km horizontal resolution and 1 h time interval output, the average uncertainty and bias in surface residence time is, respectively, 8.4% and -2.5% using time-average wind, and 13% and -3.7% using instantaneous wind with. (sigma) over dot in complex terrain. The corresponding values for instantaneous wind with cartesian w were 24% and -11%.
While the use of time-average wind systematically improves uncertainty in FLEXPART, the improvements are small, and therfore a systematic use of time-average wind in Lagrangian models is not necessarily required. Use of cartesian vertical wind in complex terrain, however, should be avoided.
C1 [Brioude, J.; Angevine, W. M.; McKeen, S. A.; Hsie, E. -Y.] Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA.
[Brioude, J.; Angevine, W. M.; McKeen, S. A.; Hsie, E. -Y.] NOAA, Div Chem Sci, Earth Syst Res Lab, Boulder, CO USA.
RP Brioude, J (reprint author), Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA.
EM jerome.brioude@noaa.gov
RI Brioude, Jerome/E-4629-2011; McKeen, Stuart/H-9516-2013; Angevine,
Wayne/H-9849-2013; Hsie, Eirh-Yu/I-4449-2013; Manager, CSD
Publications/B-2789-2015
OI Angevine, Wayne/0000-0002-8021-7116; Hsie, Eirh-Yu/0000-0003-3934-9923;
NR 12
TC 16
Z9 16
U1 2
U2 18
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1991-959X
EI 1991-9603
J9 GEOSCI MODEL DEV
JI Geosci. Model Dev.
PY 2012
VL 5
IS 5
BP 1127
EP 1136
DI 10.5194/gmd-5-1127-2012
PG 10
WC Geosciences, Multidisciplinary
SC Geology
GA 029CE
UT WOS:000310471600005
ER
PT J
AU Bentlage, B
Lewis, C
AF Bentlage, Bastian
Lewis, Cheryl
TI An illustrated key and synopsis of the families and genera of carybdeid
box jellyfishes (Cnidaria: Cubozoa: Carybdeida), with emphasis on the
"Irukandji family" (Carukiidae)
SO JOURNAL OF NATURAL HISTORY
LA English
DT Article
DE box jellyfish; Cubomedusae; Hikurage; taxonomy; nomenclature; taxonomic
key
ID LIFE-CYCLE; SIVICKISI CNIDARIA; REPRODUCTION; MORPHOLOGY; AUSTRALIA;
EVOLUTION; LINNAEUS; BEHAVIOR; ANATOMY
AB Box jellyfishes (Cnidaria: Cubozoa) have a profound impact on human activities because of their highly potent venoms that may lead to severe envenomations in humans. Cubozoa is one of the smallest classes within Cnidaria with only some 50 described species in seven families. The literature on Cubozoa is scattered and oftentimes difficult to access. In particular, comprehensive treatments of Cubozoa that present a comparative overview of the group are either non-existent or largely outdated. Here we provide a synopsis of the carybdeid Cubozoa (Carybdeida) including an illustrated key to the families and genera of this order. Of particular interest is the family Carukiidae, which contains the species that was originally attributed with causing a severe envenomation syndrome called Irukandji syndrome. One new species of Carukiidae, Malo filipina sp. nov., is described, Morbakka virulenta is redescribed and a neotype is designated, and an unidentified species of Morbakka is recorded from the Philippines.
C1 [Bentlage, Bastian] Univ Kansas, Dept Ecol & Evolutionary Biol, Lawrence, KS 66045 USA.
[Bentlage, Bastian; Lewis, Cheryl] Smithsonian Inst, Natl Museum Nat Hist, Natl Systemat Lab, NMFS, Washington, DC 20013 USA.
RP Bentlage, B (reprint author), Univ Kansas, Dept Ecol & Evolutionary Biol, Lawrence, KS 66045 USA.
EM bastian.bentlage@gmail.com
FU PADI foundation; Smithsonian Institution; US National Science Foundation
(NSF) [DEB 0910237]; NSF [EF-053179]; Department of Ecology and
Evolutionary Biology at the University of Kansas
FX Numerous people have contributed to our studies over the years by
providing assistance in the field, during museum visits or through
critical discussions. We are particularly grateful to Masato Kawahara
for collecting the specimens used for the redescription of Morbakka
virulenta and sharing his knowledge on the cubozoans of Japan with us.
Tara H. Lynn prepared, photographed and measured nematocysts of the
species described in this manuscript. We wish to thank Hermes Mianzan,
Jennifer Purcell, Dale Calder and Antonio Marques who helped to improve
this manuscript with their valuable comments. We would also like to
acknowledge the excellent resources and staff of the Smithsonian Library
at the NMNH. This work was funded through a PADI foundation grant, a
Smithsonian Institution pre-doctoral fellowship to BB, US National
Science Foundation (NSF) Doctoral Dissertation Improvement grant DEB
0910237, and NSF Assembling the Tree of Life grant EF-053179. The
Department of Ecology and Evolutionary Biology at the University of
Kansas provided generous financial assistance to support BB's attendance
of the Third Jellyfish Blooms Symposium in Mar del Plata, Argentina,
during which our research on the phylogeny and taxonomy of the Cubozoa
was presented and the idea to prepare a key and synopsis of the
Carybdeida was conceived.
NR 50
TC 17
Z9 19
U1 1
U2 19
PU TAYLOR & FRANCIS LTD
PI ABINGDON
PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLAND
SN 0022-2933
EI 1464-5262
J9 J NAT HIST
JI J. Nat. Hist.
PY 2012
VL 46
IS 41-42
BP 2595
EP 2620
DI 10.1080/00222933.2012.717645
PG 26
WC Biodiversity Conservation; Ecology
SC Biodiversity & Conservation; Environmental Sciences & Ecology
GA 037ZL
UT WOS:000311144900007
ER
PT J
AU Kralj, JG
Arya, C
Tona, A
Forbes, TP
Munson, MS
Sorbara, L
Srivastava, S
Forry, SP
AF Kralj, Jason G.
Arya, Chandamany
Tona, Alessandro
Forbes, Thomas P.
Munson, Matthew S.
Sorbara, Lynn
Srivastava, Sudhir
Forry, Samuel P.
TI A simple packed bed device for antibody labelled rare cell capture from
whole blood
SO LAB ON A CHIP
LA English
DT Article
ID CIRCULATING TUMOR-CELLS; MICROFLUIDICS; AMPLIFICATION; ENUMERATION
AB We have developed a system to isolate rare cells from whole blood using commercially available components and simple microfluidics. We characterized the capture of MCF-7 cells spiked into whole human blood using this system to demonstrate that enrichment and enumeration studies give results similar to in situ surface-modified devices while reducing fabrication and operation complexity.
C1 [Kralj, Jason G.; Tona, Alessandro; Forbes, Thomas P.; Munson, Matthew S.; Forry, Samuel P.] NIST, Div Biochem Sci, Gaithersburg, MD 20899 USA.
[Arya, Chandamany] Univ Maryland, Dept Mech Engn, College Pk, MD 20742 USA.
[Sorbara, Lynn; Srivastava, Sudhir] NCI, Early Detect Res Network, NIH, Bethesda, MD 20892 USA.
RP Forry, SP (reprint author), NIST, Div Biochem Sci, 100 Bur Dr, Gaithersburg, MD 20899 USA.
EM samuel.forry@nist.gov
RI Forbes, Thomas/M-3091-2014
OI Forbes, Thomas/0000-0002-7594-5514
NR 19
TC 14
Z9 14
U1 1
U2 28
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1473-0197
J9 LAB CHIP
JI Lab Chip
PY 2012
VL 12
IS 23
BP 4972
EP 4975
DI 10.1039/c2lc41048f
PG 4
WC Biochemical Research Methods; Chemistry, Multidisciplinary; Nanoscience
& Nanotechnology
SC Biochemistry & Molecular Biology; Chemistry; Science & Technology -
Other Topics
GA 035BJ
UT WOS:000310916500006
PM 23079718
ER
PT J
AU Shank, BV
Hart, DR
Friedland, KD
AF Shank, Burton V.
Hart, Deborah R.
Friedland, Kevin D.
TI Post-settlement predation by sea stars and crabs on the sea scallop in
the Mid-Atlantic Bight
SO MARINE ECOLOGY PROGRESS SERIES
LA English
DT Article
DE Post-settlement predation; Recruitment; Spatial association;
Predator-prey dynamics; Placopecten magellanicus; Astropecten sp.;
Asterias spp.; Cancer spp.
ID BENTHIC MARINE-INVERTEBRATES; ASTERIAS-VULGARIS VERRILL;
PLACOPECTEN-MAGELLANICUS; SPATIAL AUTOCORRELATION; CANCER-IRRORATUS;
GEOGRAPHICAL ECOLOGY; CONTINENTAL-SHELF; MODEL SELECTION; RED HERRINGS;
PREY
AB Year-class strength of benthic invertebrates is generally determined during early life-history stages. However, the contribution of different biotic and abiotic factors to the resulting abundance and spatial distribution of recruits is poorly understood. We infer the effect of post-settlement mortality by benthic invertebrate predators on recruitment of sea scallops Placopecten magellanicus based on an 11 yr time series of survey data from the east coast of the United States. We reconstructed predator densities at different life-history stages for scallops and identified the stages when scallop recruitment dynamics are best explained by predator densities. Based on spatial associations and temporal dynamics, we found evidence that sea stars Astropecten americanus and crabs Cancer spp. are causing localized depletion of sea scallop recruits. Both predator groups appear to be affecting scallop recruitment primarily in the first year post-settlement. The spatial and temporal coherence in predator-prey fluctuations partially ex plains the most dramatic recruitment events in the past 3 decades and suggests that predation on recruits may also limit the geographic distribution of sea scallops in this region.
C1 [Shank, Burton V.; Hart, Deborah R.] Natl Marine Fisheries Serv, Woods Hole, MA 02543 USA.
[Friedland, Kevin D.] NOAA, Natl Marine Fisheries Serv, Narragansett, RI 02882 USA.
RP Shank, BV (reprint author), Natl Marine Fisheries Serv, 166 Water St, Woods Hole, MA 02543 USA.
EM burton.shank@noaa.gov
FU NOAA's Fisheries and the Environment (FATE) program
FX We thank the crew of the RV 'Albatross IV' and the RV 'Hugh Sharp' and
members of the NEFSC Ecosystem Survey Branch for assistance with the
collection of the survey data. This study benefitted from comments and
discussions with A. Chute, L. Kaufman, R. Leaf, and the members of the
NEFSC Ecosystem Assessment Program. The manuscript was greatly improved
by comments from L. Jacobson and 3 anonymous reviewers. B. V. S. was
supported by a grant from NOAA's Fisheries and the Environment (FATE)
program.
NR 68
TC 2
Z9 2
U1 3
U2 14
PU INTER-RESEARCH
PI OLDENDORF LUHE
PA NORDBUNTE 23, D-21385 OLDENDORF LUHE, GERMANY
SN 0171-8630
EI 1616-1599
J9 MAR ECOL PROG SER
JI Mar. Ecol.-Prog. Ser.
PY 2012
VL 468
BP 161
EP 177
DI 10.3354/meps09974
PG 17
WC Ecology; Marine & Freshwater Biology; Oceanography
SC Environmental Sciences & Ecology; Marine & Freshwater Biology;
Oceanography
GA 036PV
UT WOS:000311041900013
ER
PT J
AU Karnauskas, M
Babcock, EA
AF Karnauskas, Mandy
Babcock, Elizabeth A.
TI Comparisons between abundance estimates from underwater visual census
and catch-per-unit-effort in a patch reef system
SO MARINE ECOLOGY PROGRESS SERIES
LA English
DT Article
DE Commercial fish abundance; Coral reefs; Fisheries management; Sampling
method; Spatial autocorrelation; SCUBA survey
ID FISH COMMUNITIES; ASSEMBLAGES; SIZE; HABITATS; DISTANCE; BOTTOM; INDEX;
ATOLL; VIDEO; CPUE
AB Methods of underwater visual censuses (UVC) and catch-per-unit-effort (CPUE) are both commonly used to estimate abundance of fish stocks. While each method is subject to certain biases, in theory they should produce related measures of fish abundance for a specific site at a given point in time, for species targeted by both methods. We tested relationships between estimates of abundance and biomass from UVC and experimental hook-and-line CPUE in a spatially complex coral patch reef system. Fishes targeted by the CPUE method were significantly larger than those sampled by UVC. Abundance estimates from UVC and CPUE were significantly correlated when the data were collected simultaneously-and over small spatial scales (<20 m). However, this correlation was reduced when collection of UVC and CPUE data was separated by either time or space. Spatial autocorrelation in the fish community composition was not detected for most species, and abundance estimates were highly variable over time and space. Our results show that differences among monthly sampling periods were responsible for the greatest amount of variability in the data, and we recommend that abundance estimates should be derived from surveys carried out over multiple months to improve accuracy. While the UVC method is useful to detect a wide variety of species, some species are more efficiently assessed using CPUE. Development of cost-effective monitoring programs is crucial to document changes in reef fish populations and support the implementation of management regulations that may prevent further degradation of reef fisheries worldwide.
C1 [Karnauskas, Mandy; Babcock, Elizabeth A.] Univ Miami, Rosenstiel Sch Marine & Atmospher Sci, Dept Marine Biol & Fisheries, Miami, FL 33149 USA.
RP Karnauskas, M (reprint author), NOAA, Natl Marine Fisheries Serv, SE Fisheries Sci Ctr, Miami, FL 33149 USA.
EM mandy.karnauskas@noaa.gov
RI Babcock, Elizabeth/E-7753-2013
FU Pew Institute for Ocean Science at the University of Miami; University
of Miami Graduate Fellowship; Cooperative Institute for Marine and
Atmospheric Studies
FX This study was funded by the Pew Institute for Ocean Science at the
University of Miami. M.K. was supported by a University of Miami
Graduate Fellowship and funding from the Cooperative Institute for
Marine and Atmospheric Studies while completing this work. We
acknowledge the Wildlife Conservation Society, B. Huntington, and L.
Cherubin for their assistance in completing field work, and J. Walter
for helpful discussions on statistical analyses. We also thank R. Nunez
for his patience while fishing for many hours at randomly generated
sites where there were no fish.
NR 50
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U1 0
U2 22
PU INTER-RESEARCH
PI OLDENDORF LUHE
PA NORDBUNTE 23, D-21385 OLDENDORF LUHE, GERMANY
SN 0171-8630
J9 MAR ECOL PROG SER
JI Mar. Ecol.-Prog. Ser.
PY 2012
VL 468
BP 217
EP 230
DI 10.3354/meps10007
PG 14
WC Ecology; Marine & Freshwater Biology; Oceanography
SC Environmental Sciences & Ecology; Marine & Freshwater Biology;
Oceanography
GA 036PV
UT WOS:000311041900017
ER
PT J
AU Pereira, JJ
Schultz, ET
Auster, PJ
AF Pereira, Jose J.
Schultz, Eric T.
Auster, Peter J.
TI Geospatial analysis of habitat use in yellowtail flounder Limanda
ferruginea on Georges Bank
SO MARINE ECOLOGY PROGRESS SERIES
LA English
DT Article
DE Spatial autocorrelation; Kriging; Yellowtail flounder; Georges Bank;
Habitat
ID IDEAL FREE DISTRIBUTION; POPULATION REGULATION; NORTHWEST ATLANTIC;
WINTER FLOUNDER; MARINE FISH; GRAND BANK; SELECTION; DYNAMICS;
DISTRIBUTIONS; STOCK
AB Three theories of habitat use proposed for marine fishes-the constant density model, the proportional density model, and the basin model-make contrasting predictions of how the geographical range, local density, and fitness change as population size changes. We tested model predictions with survey data on yellowtail flounder Limanda ferruginea from the Georges Bank region, where abundance changed by a factor of 4 over a decade. Surveys took place in spring and fall, and data on individual length, mass, sex, and reproductive status were available. Analysis of spatial pattern revealed that the overall area occupied by flounder increased by a factor of 2 when abundance was high, and local density increased predominantly in high quality habitat that had been closed to commercial fishing. Condition, which served as a proxy for fitness, was lower in females when abundance was high. Geospatial analysis revealed mesoscale variability in condition, over 10s to > 100 km, except in the spring season during low abundance periods. Spatial autocorrelation explained as much as 25% of the variability in condition, indicating that site dependence was a factor in explaining the spatial distribution that we observed. These results are most supportive of both the constant density model and the basin model. This approach detected an important population center for yellowtail flounder and determined its extent using only measures of abundance, location, and condition of individual fish, data commonly collected during routine fishery assessment surveys. Here we demonstrate that analyses linking population responses to variation in such measures at local spatial scales can have significant implications for identifying areas of important fish habitat and suggest greater use of geospatial approaches in conservation and management of exploited species.
C1 [Pereira, Jose J.] NOAA Fisheries, Milford Lab, Milford, CT 06460 USA.
[Schultz, Eric T.] Univ Connecticut, Dept Ecol & Evolutionary Biol, Storrs, CT 06269 USA.
[Auster, Peter J.] Univ Connecticut, Dept Marine Sci, Groton, CT 06340 USA.
[Auster, Peter J.] Sea Res Fdn Myst Aquarium, Groton, CT 06340 USA.
RP Pereira, JJ (reprint author), NOAA Fisheries, Milford Lab, 212 Rogers Ave, Milford, CT 06460 USA.
EM jose.pereira@noaa.gov
OI Schultz, Eric/0000-0003-4086-7883
FU National Marine Sanctuary Foundation; NOAA's Office of National Marine
Sanctuaries
FX We thank William Kramer of the National Marine Fisheries Service
laboratory in Woods Hole, Massachusetts, for providing the data used in
this study from the trawl survey database. We also thank Dr. Daniel
Civco for helping solve projection problems in ArcGIS. We thank Dr.
Peter Turchin, Dr. Robert Colwell, and Dr. Frederick Thurberg for
helpful suggestions, both statistical and grammatical, in the
preparation of this manuscript. Peter J. Auster was supported by the
National Marine Sanctuary Foundation and NOAA's Office of National
Marine Sanctuaries. The opinions expressed herein are those of the
authors and do not necessarily reflect the opinions of NOAA or its
subagencies.
NR 54
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Z9 7
U1 0
U2 11
PU INTER-RESEARCH
PI OLDENDORF LUHE
PA NORDBUNTE 23, D-21385 OLDENDORF LUHE, GERMANY
SN 0171-8630
EI 1616-1599
J9 MAR ECOL PROG SER
JI Mar. Ecol.-Prog. Ser.
PY 2012
VL 468
BP 279
EP 290
DI 10.3354/meps10035
PG 12
WC Ecology; Marine & Freshwater Biology; Oceanography
SC Environmental Sciences & Ecology; Marine & Freshwater Biology;
Oceanography
GA 036PV
UT WOS:000311041900022
ER
PT J
AU Simmons, DS
Cicerone, MT
Zhong, Q
Tyagi, M
Douglas, JF
AF Simmons, David S.
Cicerone, Marcus T.
Zhong, Qin
Tyagi, Madhusudan
Douglas, Jack F.
TI Generalized localization model of relaxation in glass-forming liquids
SO SOFT MATTER
LA English
DT Article
ID NEUTRON-SCATTERING; TUNNEL MODEL; FREE-VOLUME; DYNAMICS; TRANSITION;
DIFFUSION; POLYMERS
AB Glassy solidification is characterized by two essential phenomena: localization of the solidifying material's constituent particles and a precipitous increase in its structural relaxation time tau. Determining how these two phenomena relate is key to understanding glass formation. Leporini and coworkers have recently argued that tau universally depends on a localization length-scale < u(2)> (the Debye-Waller factor) in a way that depends only upon the value of < u(2)> at the glass transition. Here we find that this 'universal' model does not accurately describe tau in several simulated and experimental glass-forming materials. We develop a new localization model of solidification, building upon the classical Hall-Wolynes and free volume models of glass formation, that accurately relates tau to < u(2)> in all systems considered. This new relationship is based on a consideration of the anisotropic nature of particle localization. The model also indicates the presence of a particle delocalization transition at high temperatures associated with the onset of glass formation.
C1 [Simmons, David S.] Univ Akron, Dept Polymer Engn, Polymer Engn Acad Ctr, Akron, OH 44325 USA.
[Cicerone, Marcus T.; Zhong, Qin; Douglas, Jack F.] NIST, Div Polymer, Gaithersburg, MD 20899 USA.
[Tyagi, Madhusudan] Univ Maryland, Dept Mat Sci & Engn, College Pk, MD 20742 USA.
[Tyagi, Madhusudan] NIST, Ctr Neutron Res, Gaithersburg, MD 20899 USA.
RP Simmons, DS (reprint author), Univ Akron, Dept Polymer Engn, Polymer Engn Acad Ctr, 250 S Forge St, Akron, OH 44325 USA.
RI Tyagi, Madhu Sudan/M-4693-2014;
OI Tyagi, Madhu Sudan/0000-0002-4364-7176; Simmons,
David/0000-0002-1436-9269
FU NIH/NIBIB [R01 EB006398-01A1]; National Research Council National
Institute of Standards and Technology Post-doctoral Research
Associateship program
FX This work was funded in part under NIH/NIBIB Grant R01 EB006398-01A1.
This work utilized facilities supported in part by the National Science
Foundation under Agreement no. DMR-0944772. DSS acknowledges the
National Research Council National Institute of Standards and Technology
Post-doctoral Research Associateship program for funding. The authors
thank Francis Starr for contributing simulation data.
NR 42
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U1 2
U2 38
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1744-683X
EI 1744-6848
J9 SOFT MATTER
JI Soft Matter
PY 2012
VL 8
IS 45
BP 11455
EP 11461
DI 10.1039/c2sm26694f
PG 7
WC Chemistry, Physical; Materials Science, Multidisciplinary; Physics,
Multidisciplinary; Polymer Science
SC Chemistry; Materials Science; Physics; Polymer Science
GA 033VP
UT WOS:000310829800006
PM 23393495
ER
PT S
AU Lian, ZH
Godil, A
Rosin, PL
Sun, XF
AF Lian, Zhouhui
Godil, Afzal
Rosin, Paul L.
Sun, Xianfang
GP IEEE
TI A New Convexity Measurement for 3D Meshes
SO 2012 IEEE CONFERENCE ON COMPUTER VISION AND PATTERN RECOGNITION (CVPR)
SE IEEE Conference on Computer Vision and Pattern Recognition
LA English
DT Proceedings Paper
CT IEEE Conference on Computer Vision and Pattern Recognition (CVPR)
CY JUN 16-21, 2012
CL Providence, RI
SP IEEE
ID MODEL RETRIEVAL; SHAPE; RECOGNITION; INVARIANT; POLYGONS;
RECTANGULARITY; DISTRIBUTIONS; CIRCULARITY; ELLIPTICITY; SIGNATURES
AB This paper presents a novel convexity measurement for 3D meshes. The new convexity measure is calculated by minimizing the ratio of the summed area of valid regions in a mesh's six views, which are projected on faces of the bounding box whose edges are parallel to the coordinate axes, to the sum of three orthogonal projected areas of the mesh. The complete definition, theoretical analysis, and a computing algorithm of our convexity measure are explicitly described. This paper also proposes a new 3D shape descriptor CD (i.e., Convexity Distribution) based on the distribution of above-mentioned ratios, which are computed by randomly rotating the mesh around its center, to better describe the object's convexity-related properties compared to existing convexity measurements. Our experiments not only show that the proposed convexity measure corresponds well with human intuition, but also demonstrate the effectiveness of the new convexity measure and the new shape descriptor by significantly improving the performance of other methods in the application of 3D shape retrieval.
C1 [Lian, Zhouhui] Peking Univ, Inst Comp Sci & Technol, Beijing 100871, Peoples R China.
[Godil, Afzal] Natl Inst Stand & Technol, Gaithersburg, MD USA.
[Rosin, Paul L.; Sun, Xianfang] Cardiff Univ, Cardiff CF10 3AX, S Glam, Wales.
RP Lian, ZH (reprint author), Peking Univ, Inst Comp Sci & Technol, Beijing 100871, Peoples R China.
OI Sun, Xianfang/0000-0002-6114-0766
FU National Natural Science Foundation of China [61073084]; Beijing Natural
Science Foundation of China [4122035]; National Hi- Tech Research and
Development Program (863 Program) of China [2012AA012503]; National Key
Technology Research and Development Program of China [2012BAH07B01,
2012BAH18B03]; China Postdoctoral Science Foundation
FX This work was supported by National Natural Science Foundation of China
under Grant 61073084, Beijing Natural Science Foundation of China under
Grant 4122035, National Hi- Tech Research and Development Program (863
Program) of China under Grant 2012AA012503, National Key Technology
Research and Development Program of China under Grants 2012BAH07B01 and
2012BAH18B03, and China Postdoctoral Science Foundation.
NR 34
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U1 0
U2 5
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1063-6919
BN 978-1-4673-1228-8
J9 PROC CVPR IEEE
PY 2012
BP 119
EP 126
PG 8
WC Computer Science, Artificial Intelligence; Computer Science,
Interdisciplinary Applications; Engineering, Electrical & Electronic
SC Computer Science; Engineering
GA BBZ37
UT WOS:000309166200016
ER
PT J
AU Fey, DP
Hare, JA
AF Fey, Dariusz P.
Hare, Jonathan A.
TI TEMPERATURE AND SOMATIC GROWTH EFFECTS ON OTOLITH GROWTH OF LARVAL
ATLANTIC MENHADEN, BREVOORTIA TYRANNUS (ACTINOPTERYGII: CLUPEIFORMES:
CLUPEIDAE)
SO ACTA ICHTHYOLOGICA ET PISCATORIA
LA English
DT Article
DE Brevoortia tyrannus; fish larvae; menhaden; otolith growth; somatic
growth
ID COD GADUS-MORHUA; BACK-CALCULATION; INCREMENT WIDTH; POMATOMUS
SALTATRIX; SIZE RELATIONSHIP; FEEDING HISTORY; NORTH-CAROLINA; FOOD
LEVELS; L. LARVAE; FISH
AB Background. If a link exists between somatic and otolith growth, otolith size and microstructure analysis can be a useful tool in studies of larval fish growth and condition-methods like growth back-calculation or marginal increment width analysis can be employed. Because significance of that link may vary among species and can be additionally modified by temperature, the aim of the present paper is to evaluate how sagittal otoliths of Atlantic menhaden responded to somatic growth and temperature.
Materials and methods. Larval Atlantic menhaden, Brevoortia tyrannus (Latrobe, 1802) (age range: 20-120 days; length range: 14-35 mm SL), collected during 3 years were evaluated for length-at-age and groups of the shortest and longest-at-age individuals (8% of sampled population in each group) were used in the analyses. Similarly, otolith size-at-age estimated from sagittae length was evaluated and then compared with the earlier estimated growth indices of larvae.
Results. Otolith growth rate (OGR) indicated growth differences among analysed larvae. Additionally, temperature effect on OGR independent of somatic growth was detected for larvae that were short-at-age (i.e., the slow growth group). For the fast grow group, temperature effect on OGR was insignificant.
Conclusion. Back-calculation of growth from otoliths of larval and early juvenile Atlantic menhaden is justified but less accurate estimates can be expected for the slowest growing individuals due to the independent temperature effect on otolith growth.
C1 [Fey, Dariusz P.] Natl Marine Fisheries Res Inst, Dept Fisheries Oceanog & Marine Ecol, Gdynia, Poland.
[Hare, Jonathan A.] NOAA Narragansett Lab, Narragansett, RI 02882 USA.
RP Fey, DP (reprint author), Morski Inst Rybacki Panstwowy Inst Badawczy, Zaklad Oceanog Rybackiej & Ekol Morza, Ul Kollataja 1, PL-81332 Gdynia, Poland.
EM dfey@mir.gdynia.pl
RI Fey, Dariusz/B-1962-2013
FU NOAA Beaufort Laboratory; State Committee for Scientific Research [2
PO4F 02332]
FX This research was performed while the first author held a National
Research Council Research Associateship Award at the NOAA Beaufort
Laboratory. This paper is also a contribution to the State Committee for
Scientific Research grant no 2 PO4F 02332. We thank Chris Chambers for
his comments on the earlier version of this manuscript.
NR 53
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Z9 2
U1 2
U2 21
PU WYDAWNICTWO AKAD ROLNICZEJ W SZCZECINIE
PI SZCZECIN
PA KAZIMIERZA KROLEWICZA 4, SZCZECIN, 71550, POLAND
SN 0137-1592
J9 ACTA ICHTHYOL PISCAT
JI Acta Ichthyol. Piscat.
PY 2012
VL 42
IS 3
BP 215
EP 222
DI 10.3750/AIP2011.42.3.05
PG 8
WC Fisheries; Zoology
SC Fisheries; Zoology
GA 032UB
UT WOS:000310743500005
ER
PT J
AU McKenna, MF
Katz, SL
Condit, C
Walbridge, S
AF McKenna, Megan F.
Katz, Stephen L.
Condit, Christopher
Walbridge, Shaun
TI Response of Commercial Ships to a Voluntary Speed Reduction Measure: Are
Voluntary Strategies Adequate for Mitigating Ship-Strike Risk?
SO COASTAL MANAGEMENT
LA English
DT Article
DE Automatic Identification System; baleen whales; commercial ship traffic;
Local Notices to Mariners; scale mismatch; ship-strike; voluntary
conservation
ID ATLANTIC RIGHT WHALES; CONSERVATION; COLLISIONS; PROBABILITY;
ENCOUNTERS; ABUNDANCE; BLUE
AB Collisions between ships and whales are an increasing concern for endangered large whale species. After an unusually high number of blue whales (Balaenoptera musculus) were fatally struck in 2007 off the coast of southern California, federal agencies implemented a voluntary conservation program to reduce the likelihood of ship-strikes in the region. This initiative involved seasonal advisory broadcasts requesting vessel operators to voluntarily slow to 10 knots or less when transiting a 75 nm stretch of designated shipping lanes. We monitored ship adherence with those speed advisories using Automatic Identification System data. Daily average speed of cargo and tanker ships and the average speed of individual ship transits before, during, and after the notices were statistically analyzed for changes related to the notices. Whereas a small number of individual ships (1%) traveled significantly slower during the requested periods, speeds were not at or below the recommended 10 knots, nor were daily average speeds reduced during the notices. Voluntary conservation measures are established in a variety of contexts, and may be preferable to regulatory action; in this case, a request to make voluntary changes appeared largely ineffective. Reducing collision risks for whales in this area will require consideration of the various factors that likely explain the lack of adherence when developing an alternative strategy.
C1 [McKenna, Megan F.] Marine Mammal Commiss, Bethesda, MD 20814 USA.
[McKenna, Megan F.] Univ Calif San Diego, Scripps Inst Oceanog, La Jolla, CA 92093 USA.
[Katz, Stephen L.] NOAA, Santa Barbara, CA USA.
[Condit, Christopher] Univ Calif San Diego, San Diego Supercomp Ctr, La Jolla, CA 92093 USA.
[Walbridge, Shaun] Univ Calif Santa Barbara, Natl Ctr Ecol Anal & Synth, Santa Barbara, CA 93106 USA.
RP McKenna, MF (reprint author), Marine Mammal Commiss, 4340 EW Highway,Suite 700, Bethesda, MD 20814 USA.
EM megan.mckenna@gmail.com
OI Walbridge, Shaun/0000-0001-6369-8088
FU National Science Foundation through the Integrative Graduate Education
and Research Traineeship (IGERT) Program
FX We thank C. Garsha, E. Roth, M. Roch, M. Franklin, S. Gaines, M. Smith,
B. Emery, L. Washburn, and C. Johnson for assistance with our AIS
station set-up and data collection. A special thanks to the Channel
Islands National Marine Sanctuary for accommodating the senior author
during her internship. The writing and content of the article was
greatly improved by suggested edits made by of D. Laist, G. Silber, S.
Walsh, N. Tolimieri, and three anonymous reviewers. This work was
supported by National Science Foundation through the Integrative
Graduate Education and Research Traineeship (IGERT) Program awarded to
the senior author.
NR 30
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U1 4
U2 42
PU TAYLOR & FRANCIS INC
PI PHILADELPHIA
PA 325 CHESTNUT ST, SUITE 800, PHILADELPHIA, PA 19106 USA
SN 0892-0753
J9 COAST MANAGE
JI Coast. Manage.
PY 2012
VL 40
IS 6
BP 634
EP 650
DI 10.1080/08920753.2012.727749
PG 17
WC Environmental Sciences; Environmental Studies
SC Environmental Sciences & Ecology
GA 030UD
UT WOS:000310594700005
ER
PT J
AU McLeod, E
Green, A
Game, E
Anthony, K
Cinner, J
Heron, SF
Kleypas, J
Lovelock, CE
Pandolfi, JM
Pressey, RL
Salm, R
Schill, S
Woodroffe, C
AF McLeod, Elizabeth
Green, Alison
Game, Edward
Anthony, Kenneth
Cinner, Joshua
Heron, Scott F.
Kleypas, Joanie
Lovelock, Catherine E.
Pandolfi, John M.
Pressey, Robert L.
Salm, Rodney
Schill, Steve
Woodroffe, Colin
TI Integrating Climate and Ocean Change Vulnerability into Conservation
Planning
SO COASTAL MANAGEMENT
LA English
DT Article
DE climate change; conservation planning; increasing sea-surface
temperature; marine conservation; marine protected area (MPA); ocean
acidification; sea-level rise
ID SEA-LEVEL RISE; MARINE PROTECTED AREAS; CORAL-REEFS; THERMAL-STRESS;
RESERVES; ACIDIFICATION; MANAGEMENT; GROWTH; TEMPERATURE; IMPACTS
AB Tropical coastal and marine ecosystems are particularly vulnerable to ocean warming, ocean acidification, and sea-level rise. Yet these projected climate and ocean change impacts are rarely considered in conservation planning due to the lack of guidance on how existing climate and ocean change models, tools, and data can be applied. Here, we address this gap by describing how conservation planning can use available tools and data for assessing the vulnerability of tropical marine ecosystems to key climate threats. Additionally, we identify limitations of existing tools and provide recommendations for future research to improve integration of climate and ocean change information and conservation planning. Such information is critical for developing a conservation response that adequately protects these ecosystems and dependent coastal communities in the face of climate and ocean change.
C1 [McLeod, Elizabeth] Nature Conservancy, Austin, TX 78749 USA.
[Green, Alison; Game, Edward] Nature Conservancy, W End, Qld, Australia.
[Anthony, Kenneth] Australian Inst Marine Sci, Townsville, Qld 4810, Australia.
[Cinner, Joshua; Pressey, Robert L.] James Cook Univ, Australian Res Council Ctr Excellence Coral Reef, Townsville, Qld 4811, Australia.
[Heron, Scott F.] NOAA Coral Reef Watch, Townsville, Qld, Australia.
[Heron, Scott F.] James Cook Univ, Marine Geophys Lab, Sch Engn & Phys Sci, Townsville, Qld 4811, Australia.
[Kleypas, Joanie] Natl Ctr Atmospher Res, Boulder, CO 80307 USA.
[Pandolfi, John M.] Univ Queensland, Sch Biol Sci, Australian Res Council Excellence Coral Reef Stud, Brisbane, Qld, Australia.
[Salm, Rodney] Nature Conservancy, Honolulu, HI USA.
[Schill, Steve] Nature Conservancy, Coral Gables, FL USA.
[Woodroffe, Colin] Univ Wollongong, Sch Earth & Environm Sci, Wollongong, NSW, Australia.
RP McLeod, E (reprint author), Nature Conservancy, 7707 Vail Valley Dr, Austin, TX 78749 USA.
EM emcleod@tnc.org
RI Pandolfi, John/A-3121-2009; Pressey, Bob/C-8370-2013; Cinner,
Joshua/E-8966-2011; Lovelock, Catherine/G-7370-2012; Woodroffe,
Colin/F-2767-2012; Heron, Scott/E-7928-2011; Research ID, CTBCC
/O-3564-2014; Woodroffe, Colin/K-5222-2015;
OI Pandolfi, John/0000-0003-3047-6694; Pressey, Bob/0000-0003-2740-0330;
Lovelock, Catherine/0000-0002-2219-6855; Woodroffe,
Colin/0000-0003-4476-6158; Cinner, Joshua/0000-0003-2675-9317
FU National Oceanographic and Atmospheric Administration's (NOAA) Sector
Applications Research Program (SARP); University of Queensland;
Australian Research Council
FX This paper was based on outcomes of a workshop held at The University of
Queensland. Financial assistance for the workshop was provided by the
National Oceanographic and Atmospheric Administration's (NOAA) Sector
Applications Research Program (SARP) and the University of Queensland.
RLP acknowledges the support of the Australian Research Council. The
manuscript contents are solely the opinions of the authors and do not
constitute a statement of policy, decision, or position on behalf of
NOAA or the U.S. Government.
NR 79
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Z9 11
U1 2
U2 59
PU TAYLOR & FRANCIS INC
PI PHILADELPHIA
PA 325 CHESTNUT ST, SUITE 800, PHILADELPHIA, PA 19106 USA
SN 0892-0753
J9 COAST MANAGE
JI Coast. Manage.
PY 2012
VL 40
IS 6
BP 651
EP 672
DI 10.1080/08920753.2012.728123
PG 22
WC Environmental Sciences; Environmental Studies
SC Environmental Sciences & Ecology
GA 030UD
UT WOS:000310594700006
ER
PT J
AU Liu, Y
Weerts, AH
Clark, M
Franssen, HJH
Kumar, S
Moradkhani, H
Seo, DJ
Schwanenberg, D
Smith, P
van Dijk, AIJM
van Velzen, N
He, M
Lee, H
Noh, SJ
Rakovec, O
Restrepo, P
AF Liu, Y.
Weerts, A. H.
Clark, M.
Franssen, H-J Hendricks
Kumar, S.
Moradkhani, H.
Seo, D-J
Schwanenberg, D.
Smith, P.
van Dijk, A. I. J. M.
van Velzen, N.
He, M.
Lee, H.
Noh, S. J.
Rakovec, O.
Restrepo, P.
TI Advancing data assimilation in operational hydrologic forecasting:
progresses, challenges, and emerging opportunities
SO HYDROLOGY AND EARTH SYSTEM SCIENCES
LA English
DT Article
ID ENSEMBLE KALMAN FILTER; VARIATIONAL DATA ASSIMILATION; NUMERICAL
WEATHER-PREDICTION; SEQUENTIAL DATA ASSIMILATION; SOIL-MOISTURE
RETRIEVALS; LAND DATA ASSIMILATION; STOCHASTIC HYDROMETEOROLOGICAL
MODEL; IMPROVING RUNOFF PREDICTION; STATE-PARAMETER ESTIMATION;
SNOW-COVER PRODUCTS
AB Data assimilation (DA) holds considerable potential for improving hydrologic predictions as demonstrated in numerous research studies. However, advances in hydrologic DA research have not been adequately or timely implemented in operational forecast systems to improve the skill of forecasts for better informed real-world decision making. This is due in part to a lack of mechanisms to properly quantify the uncertainty in observations and forecast models in real-time forecasting situations and to conduct the merging of data and models in a way that is adequately efficient and transparent to operational forecasters.
The need for effective DA of useful hydrologic data into the forecast process has become increasingly recognized in recent years. This motivated a hydrologic DA workshop in Delft, the Netherlands in November 2010, which focused on advancing DA in operational hydrologic forecasting and water resources management. As an outcome of the workshop, this paper reviews, in relevant detail, the current status of DA applications in both hydrologic research and operational practices, and discusses the existing or potential hurdles and challenges in transitioning hydrologic DA research into cost-effective operational forecasting tools, as well as the potential pathways and newly emerging opportunities for overcoming these challenges. Several related aspects are discussed, including (1) theoretical or mathematical aspects in DA algorithms, (2) the estimation of different types of uncertainty, (3) new observations and their objective use in hydrologic DA, (4) the use of DA for real-time control of water resources systems, and (5) the development of community-based, generic DA tools for hydrologic applications. It is recommended that cost-effective transition of hydrologic DA from research to operations should be helped by developing community-based, generic modeling and DA tools or frameworks, and through fostering collaborative efforts among hydrologic modellers, DA developers, and operational forecasters.
C1 [Liu, Y.] Univ Maryland, Earth Syst Sci Interdisciplinary Ctr, College Pk, MD 20742 USA.
[Liu, Y.; Kumar, S.] NASA, Goddard Space Flight Ctr, Hydrol Sci Lab, Greenbelt, MD 20771 USA.
[Weerts, A. H.; Schwanenberg, D.] Deltares, Delft, Netherlands.
[Clark, M.] Natl Ctr Atmospher Res, Res Applicat Lab, Boulder, CO 80307 USA.
[Franssen, H-J Hendricks] Forschungszentrum Julich, Agrosphere IBG 3, D-52425 Julich, Germany.
[Kumar, S.] Sci Applicat Int Corp, Beltsville, MD USA.
[Moradkhani, H.] Portland State Univ, Dept Civil & Environm Engn, Portland, OR 97207 USA.
[Seo, D-J] Univ Texas Arlington, Dept Civil Engn, Arlington, TX 76019 USA.
[Schwanenberg, D.] Univ Duisburg Essen, Inst Hydraul Engn & Water Resources Management, Duisburg, Germany.
[Smith, P.] Univ Lancaster, Lancaster Environm Ctr, Lancaster, England.
[van Dijk, A. I. J. M.] Australian Natl Univ, Fenner Sch Environm & Soc, CSIRO Land & Water, Canberra, ACT, Australia.
[van Velzen, N.] Delft Univ Technol, Delft, Netherlands.
[van Velzen, N.] VORtech, Delft, Netherlands.
[He, M.; Lee, H.] NOAA, Natl Weather Serv, Off Hydrol Dev, Silver Spring, MD 20910 USA.
[He, M.] Riverside Technol Inc, Ft Collins, CO USA.
[Lee, H.] Univ Corp Atmospher Res, Boulder, CO USA.
[Noh, S. J.] Kyoto Univ, Dept Urban & Environm Engn, Kyoto, Japan.
[Noh, S. J.] Korea Inst Construct Technol, Water Resources & Environm Res Dept, Goyang Si, Gyeonggi Do, South Korea.
[Rakovec, O.] Wageningen Univ, Hydrol & Quantitat Water Management Grp, Wageningen, Netherlands.
[Restrepo, P.] Natl Weather Serv, N Cent River Forecast Ctr, Chanhassen, MN USA.
RP Liu, Y (reprint author), Univ Maryland, Earth Syst Sci Interdisciplinary Ctr, College Pk, MD 20742 USA.
EM yuqiong.liu@nasa.gov
RI Kumar, Sujay/B-8142-2015; Clark, Martyn/A-5560-2015; Rakovec,
Oldrich/N-5512-2015; Moradkhani, Hamid/B-1571-2012; Van Dijk,
Albert/B-3106-2011;
OI Clark, Martyn/0000-0002-2186-2625; Rakovec, Oldrich/0000-0003-2451-3305;
Van Dijk, Albert/0000-0002-6508-7480; Noh, Seong Jin/0000-0002-2683-7269
FU National Aeronautics and Space Administration (NASA) [NNX08AU51G]
FX Support for the 2010 data assimilation workshop was provided by the
Flood Control 2015 program (http://www.floodcontrol2015.nl), Deltares,
and the Office of Hydrologic Development (OHD) of the US NWS. This
support is greatly appreciated. Additional funding for the first author
was provided by the National Aeronautics and Space Administration (NASA)
under Grant NNX08AU51G. We gratefully acknowledge the contribution from
the workshop participants, which helped to shape some of the ideas
presented in the paper.
NR 252
TC 102
Z9 103
U1 7
U2 71
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1027-5606
EI 1607-7938
J9 HYDROL EARTH SYST SC
JI Hydrol. Earth Syst. Sci.
PY 2012
VL 16
IS 10
BP 3863
EP 3887
DI 10.5194/hess-16-3863-2012
PG 25
WC Geosciences, Multidisciplinary; Water Resources
SC Geology; Water Resources
GA 029DF
UT WOS:000310474300026
ER
PT J
AU McGrattan, K
McDermott, R
Floyd, J
Hostikka, S
Forney, G
Baum, H
AF McGrattan, Kevin
McDermott, Randall
Floyd, Jason
Hostikka, Simo
Forney, Glenn
Baum, Howard
TI Computational fluid dynamics modelling of fire
SO INTERNATIONAL JOURNAL OF COMPUTATIONAL FLUID DYNAMICS
LA English
DT Article
DE combustion; fire; large-eddy simulation; low Mach number approximation;
lumped species; thermal radiation
ID FLOW
AB An overview of a methodology for simulating fires and other thermally-driven, low-speed flows is presented. The model employs a number of simplifications of the governing equations that allow for relatively fast simulations of practical fire scenarios. The hydrodynamic model consists of the low Mach number large-eddy simulation subgrid closure with either a constant or dynamic coefficient eddy diffusivity. Combustion is typically treated as a mixing-controlled, single-step reaction of fuel and oxygen. The radiation transport equation is written in terms of a spectrally-averaged grey gas. Applications of the model include the design of fire protection systems in buildings and the reconstruction of actual fires.
C1 [McGrattan, Kevin; McDermott, Randall; Forney, Glenn; Baum, Howard] NIST, Gaithersburg, MD 20899 USA.
[Floyd, Jason] Hughes Associates Inc, Baltimore, MD USA.
[Hostikka, Simo] VTT Tech Res Ctr, Espoo, Finland.
RP McGrattan, K (reprint author), NIST, Gaithersburg, MD 20899 USA.
EM kevin.mcgrattan@nist.gov
OI Hostikka, Simo/0000-0002-3581-1677
NR 24
TC 7
Z9 7
U1 2
U2 6
PU TAYLOR & FRANCIS LTD
PI ABINGDON
PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLAND
SN 1061-8562
J9 INT J COMPUT FLUID D
JI Int. J. Comput. Fluid Dyn.
PY 2012
VL 26
IS 6-8
SI SI
BP 349
EP 361
DI 10.1080/10618562.2012.659663
PG 13
WC Mechanics; Physics, Fluids & Plasmas
SC Mechanics; Physics
GA 030TF
UT WOS:000310592300003
ER
PT J
AU Bingham, FM
Foltz, GR
McPhaden, MJ
AF Bingham, F. M.
Foltz, G. R.
McPhaden, M. J.
TI Characteristics of the seasonal cycle of surface layer salinity in the
global ocean
SO OCEAN SCIENCE
LA English
DT Article
ID TROPICAL PACIFIC-OCEAN; FRESH-WATER; MIXED-LAYER; SUBTROPICAL
UNDERWATER; INTERANNUAL VARIATIONS; HYDROLOGICAL CYCLE; FORMATION RATES;
ATLANTIC-OCEAN; LABRADOR SEA; SALT BUDGET
AB The seasonal variability of surface layer salinity (SLS), evaporation (E), precipitation (P), E-P, advection and vertical entrainment over the global ocean is examined using in situ salinity data, the National Centers for Environmental Prediction's Climate System Forecast Reanalysis and a number of other ancillary data. Seasonal amplitudes and phases are calculated using harmonic analysis and presented in all areas of the open ocean between 60A degrees S and 60A degrees N. Areas with large amplitude SLS seasonal variations include: the intertropical convergence zone (ITCZ) in the Atlantic, Pacific and Indian Oceans; western marginal seas of the Pacific; and the Arabian Sea. The median amplitude in areas that have statistically significant seasonal cycles of SLS is 0.19. Between about 60A degrees S and 60A degrees N, 37% of the ocean surface has a statistically significant seasonal cycle of SLS and 75% has a seasonal cycle of E-P. Phases of SLS have a bimodal distribution, with most areas in the Northern Hemisphere peaking in SLS in March/April and in the Southern Hemisphere in September/October.
The seasonal cycle is also estimated for surface freshwater forcing using a mixed-layer depth climatology. With the exception of areas near the western boundaries of the North Atlantic and North Pacific, seasonal variability is dominated by precipitation. Surface freshwater forcing also has a bimodal distribution, with peaks in January and July, 1-2 months before the peaks of SLS. Seasonal amplitudes and phases calculated for horizontal advection show it to be important in the tropical oceans. Vertical entrainment, estimated from mixed-layer heaving, is largest in mid and high latitudes, with a seasonal cycle that peaks in late winter.
The amplitudes and phases of SLS and surface fluxes compare well in a qualitative sense, suggesting that much of the variability in SLS is due to E-P. However, the amplitudes of SLS are somewhat different than would be expected and the peak of SLS comes typically about one month earlier than expected. The differences of the amplitudes of the two quantities is largest in such areas as the Amazon River plume, the Arabian Sea, the ITCZ and the eastern equatorial Pacific and Atlantic.
C1 [Bingham, F. M.] Univ N Carolina, Ctr Marine Sci, Wilmington, NC 28403 USA.
[Foltz, G. R.] NOAA, Atlantic Oceanog & Meteorol Lab, Miami, FL 33149 USA.
[McPhaden, M. J.] NOAA, Pacific Marine Environm Lab, Seattle, WA 98115 USA.
RP Bingham, FM (reprint author), Univ N Carolina, Ctr Marine Sci, 601 S Coll Rd, Wilmington, NC 28403 USA.
EM binghamf@uncw.edu
RI Foltz, Gregory/B-8710-2011; McPhaden, Michael/D-9799-2016
OI Foltz, Gregory/0000-0003-0050-042X;
FU NASA [NNX09AU70G, NNX11AE83G]; NOAA
FX We appreciate the efforts of two anonymous reviewers whose input greatly
improved the manuscript. The GOSUD surface data were collected in the
framework of national programmes. They are aggregated and made freely
available in the frame of the GOSUD Project: http://www.gosud.org. Argo
data were collected and made freely available by the International Argo
Project and the national initiatives that contribute to it
(http://www.argo.net). Argo is a pilot programme of the Global Ocean
Observing System. FMB was supported by NASA under grants NNX09AU70G and
NNX11AE83G. MJM was supported by NOAA. PMEL contribution #3776.
NR 59
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U1 0
U2 33
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1812-0784
J9 OCEAN SCI
JI Ocean Sci.
PY 2012
VL 8
IS 5
BP 915
EP 929
DI 10.5194/os-8-915-2012
PG 15
WC Meteorology & Atmospheric Sciences; Oceanography
SC Meteorology & Atmospheric Sciences; Oceanography
GA 029CN
UT WOS:000310472500013
ER
PT S
AU Salemi, S
Akturk, A
Potbhare, S
Lelis, A
Goldsman, N
AF Salemi, S.
Akturk, A.
Potbhare, S.
Lelis, A.
Goldsman, N.
BE Devaty, RP
Dudley, M
Chow, TP
Neudeck, PG
TI Total Near Interface Trap Density Calculation of 4H-SiC/SiO2 Structures
before and after Nitrogen Passivation
SO SILICON CARBIDE AND RELATED MATERIALS 2011, PTS 1 AND 2
SE Materials Science Forum
LA English
DT Proceedings Paper
CT 14th International Conference on Silicon Carbide and Related Materials
(ICSCRM 2011)
CY SEP 11-16, 2011
CL Cleveland, OH
SP Cree, Keithley Instruments, AIXTRON, Dow Corn Elect Solut, Gen Elect, CuttingEdgeIons com, Off Naval Res Global, NASA Glenn Res Ctr, Infineon, SemiSouth, Microsemi, OAI
DE 4H-SiC/SiO2 transition layer; SiC interface states; nitrogen
passivation; DFT; DOS
AB We compare the effect of hydrogen, nitrogen, and phosphorus passivation on total near interface trap density and mobility of 4H(0001)-SiC/SiO2 structure. The results show that nitrogen and phosphorus passivation decrease total near interface trap density by pushing the energy levels of interface traps away from the conduction band. The density of states (DOS), including interface states (D-it), are calculated for several 4H(0001)-SiC/SiO2 structures using density functional theory (DFT).
C1 [Salemi, S.] Univ Maryland, Dept Reliabil Engn, College Pk, MD 20742 USA.
[Akturk, A.; Potbhare, S.; Goldsman, N.] Univ Maryland, Dept Elect & Comp Engn, College Pk, MD 20742 USA.
[Potbhare, S.] Natl Inst Stand & Technol, Gaithersburg, MD 20899 USA.
[Lelis, A.] US Army Res Lab, Adelphi, MD 20783 USA.
RP Salemi, S (reprint author), Univ Maryland, Dept Reliabil Engn, College Pk, MD 20742 USA.
EM shahrzadsalemi@gmail.com
NR 9
TC 0
Z9 0
U1 0
U2 4
PU TRANS TECH PUBLICATIONS LTD
PI DURNTEN-ZURICH
PA KREUZSTRASSE 10, 8635 DURNTEN-ZURICH, SWITZERLAND
SN 0255-5476
BN 978-3-03785-419-8; 978-3-03813-833-4
J9 MATER SCI FORUM
PY 2012
VL 717-720
BP 457
EP +
DI 10.4028/www.scientific.net/MSF.717-720.457
PG 2
WC Materials Science, Multidisciplinary
SC Materials Science
GA BCA44
UT WOS:000309431000108
ER
PT S
AU Yu, LC
Fronheiser, J
Tilak, V
Cheung, KP
AF Yu, Liangchun
Fronheiser, Jody
Tilak, Vinayak
Cheung, Kin P.
BE Devaty, RP
Dudley, M
Chow, TP
Neudeck, PG
TI Frequency-dependent Charge Pumping on 4H-SiC MOSFETs
SO SILICON CARBIDE AND RELATED MATERIALS 2011, PTS 1 AND 2
SE Materials Science Forum
LA English
DT Proceedings Paper
CT 14th International Conference on Silicon Carbide and Related Materials
(ICSCRM 2011)
CY SEP 11-16, 2011
CL Cleveland, OH
SP Cree, Keithley Instruments, AIXTRON, Dow Corn Elect Solut, Gen Elect, CuttingEdgeIons com, Off Naval Res Global, NASA Glenn Res Ctr, Infineon, SemiSouth, Microsemi, OAI
DE Near-interface oxide defect; MOSFET; Charge pumping; physical depth
profile
ID INVERSION-LAYERS
AB The quality of the SiC/SiO2 interface is critical to the stability and performance of MOS-based SiC power devices. Charge pumping is a flexible interface characterization technique. In this work, a significant portion of the total traps are found to be located in the near-interface oxide using frequency-dependent charge pumping. Oxide trap tunneling mechanisms are discussed, and trap profile as a function of depth is calculated. The trap density is shown to increase exponentially as it gets closer to the interface.
C1 [Yu, Liangchun; Fronheiser, Jody; Tilak, Vinayak] GE Global Res, 1 Res Circle, Niskayuna, NY 12309 USA.
[Yu, Liangchun; Cheung, Kin P.] Natl Inst Stand & Technol, Gaithersburg, MD 20899 USA.
RP Yu, LC (reprint author), GE Global Res, 1 Res Circle, Niskayuna, NY 12309 USA.
EM liangchun.yu@ge.com; fronheis@ge.com; tilak@research.ge.com;
kin.cheung@nist.gov
FU U.S. Department of Commerce [60NANB10D019]
FX This report was prepared with the support of the U.S. Department of
Commerce under Award No. 60NANB10D019. However, any opinions, findings,
conclusions or other recommendations expressed herein are those of the
author(s) and do not necessarily reflect the views of the U.S. Commerce
Dept.
NR 10
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PU TRANS TECH PUBLICATIONS LTD
PI DURNTEN-ZURICH
PA KREUZSTRASSE 10, 8635 DURNTEN-ZURICH, SWITZERLAND
SN 0255-5476
BN 978-3-03785-419-8; 978-3-03813-833-4
J9 MATER SCI FORUM
PY 2012
VL 717-720
BP 793
EP +
DI 10.4028/www.scientific.net/MSF.717-720.793
PG 2
WC Materials Science, Multidisciplinary
SC Materials Science
GA BCA44
UT WOS:000309431000188
ER
PT S
AU Hobart, KD
Imhoff, EA
Kub, FJ
Hefner, AR
Duong, TH
Ortiz-Rodriguez, JM
Ryu, SH
Grider, D
Leslie, S
Sherbondy, J
Ray, B
AF Hobart, K. D.
Imhoff, E. A.
Kub, F. J.
Hefner, A. R., Jr.
Duong, T. H.
Ortiz-Rodriguez, J. M.
Ryu, S. -H.
Grider, D.
Leslie, S.
Sherbondy, J.
Ray, B.
BE Devaty, RP
Dudley, M
Chow, TP
Neudeck, PG
TI Performance of Hybrid 4.5 kV SiC JBS Freewheeling Diode and Si IGBT
SO SILICON CARBIDE AND RELATED MATERIALS 2011, PTS 1 AND 2
SE Materials Science Forum
LA English
DT Proceedings Paper
CT 14th International Conference on Silicon Carbide and Related Materials
(ICSCRM 2011)
CY SEP 11-16, 2011
CL Cleveland, OH
SP Cree, Keithley Instruments, AIXTRON, Dow Corn Elect Solut, Gen Elect, CuttingEdgeIons com, Off Naval Res Global, NASA Glenn Res Ctr, Infineon, SemiSouth, Microsemi, OAI
DE JBS diode; Schottky diode; IGBT; freewheeling diode
AB The performance of Junction Barrier Schottky (JBS) diodes developed for medium voltage hard-switched Naval power conversion is reported. Nominally 60 A, 4.5kV rated JBS freewheeling diodes were paired with similarly rated Si IGBTs and evaluated for temperature dependent static and dynamic characteristics as well as HTRB and surge capability. The SiC JBS/Si IGBT pair was also directly compared to Si PiN diode/Si IGBT with similar ratings. Compared to Si, the SiC freewheeling diode produced over twenty times lower reverse recovery charge leading to approximately a factor-of-four-reduction in turn-on loss. Alternatively, for equivalent total switching loss, the SiC JBS/Si IGBT hybrid configuration allows for at least a 50% increase in specific switched power density. Reliability testing showed the devices to be robust with zero failures.
C1 [Hobart, K. D.; Imhoff, E. A.; Kub, F. J.] USN, Res Lab, Washington, DC 20375 USA.
[Hefner, A. R., Jr.; Duong, T. H.; Ortiz-Rodriguez, J. M.] Natl Inst Stand & Technol, Gaithersburg, MD 20899 USA.
[Ryu, S. -H.; Grider, D.] Cree Inc, Durham, NC 27703 USA.
[Leslie, S.; Sherbondy, J.] Powerex Inc, Youngwood, PA 15697 USA.
[Ray, B.] Bloomsburg Univ Penn, Bloomsburg, PA 17815 USA.
RP Hobart, KD (reprint author), USN, Res Lab, Washington, DC 20375 USA.
EM karl.hobart@nrl.navy.mil
NR 4
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Z9 0
U1 0
U2 8
PU TRANS TECH PUBLICATIONS LTD
PI DURNTEN-ZURICH
PA KREUZSTRASSE 10, 8635 DURNTEN-ZURICH, SWITZERLAND
SN 0255-5476
BN 978-3-03785-419-8; 978-3-03813-833-4
J9 MATER SCI FORUM
PY 2012
VL 717-720
BP 941
EP +
DI 10.4028/www.scientific.net/MSF.717-720.941
PG 2
WC Materials Science, Multidisciplinary
SC Materials Science
GA BCA44
UT WOS:000309431000224
ER
PT S
AU Das, M
Grider, D
Leslie, S
Raju, R
Schutten, M
Hefner, A
AF Das, Mrinal
Grider, David
Leslie, Scott
Raju, Ravi
Schutten, Michael
Hefner, Allen
BE Devaty, RP
Dudley, M
Chow, TP
Neudeck, PG
TI 10 kV SiC Power MOSFETs and JBS Diodes: Enabling Revolutionary Module
and Power Conversion Technologies
SO SILICON CARBIDE AND RELATED MATERIALS 2011, PTS 1 AND 2
SE Materials Science Forum
LA English
DT Proceedings Paper
CT 14th International Conference on Silicon Carbide and Related Materials
(ICSCRM 2011)
CY SEP 11-16, 2011
CL Cleveland, OH
SP Cree, Keithley Instruments, AIXTRON, Dow Corn Elect Solut, Gen Elect, CuttingEdgeIons com, Off Naval Res Global, NASA Glenn Res Ctr, Infineon, SemiSouth, Microsemi, OAI
DE MOSFET; JBS Diode; Power Module; SSPS
AB The majority carrier domain of power semiconductor devices has been extended to 10 kV with the advent of SiC MOSFETs and Schottky diodes. Twenty-four MOSFETs and twelve JBS diodes have been assembled in a 10 kV half H-bridge power module to increase the current handling capability to 120 A per switch without compromising the die-level characteristics. For the first time, a custom designed system (13.8 kV to 465/43 V solid state power substation) has been successfully demonstrated with these state of the art SiC modules up to 855 kVA operation and 97% efficiency. Soft-switching at 20 kHz, the SiC enabled SSPS represents a 70% reduction in weight and 50% reduction in size when compared to a 60 Hz conventional, analog transformer.
C1 [Das, Mrinal; Grider, David] Cree Inc, 4600 Silicon Dr, Durham, NC 27703 USA.
[Leslie, Scott] Powerex Inc, Youngwood, PA 15697 USA.
[Hefner, Allen] Natl Inst Stand & Technol, Gaithersburg, MD 20899 USA.
[Raju, Ravi; Schutten, Michael] GE Global Res Ctr, Niskayuna, NY 12309 USA.
RP Das, M (reprint author), Cree Inc, 4600 Silicon Dr, Durham, NC 27703 USA.
EM mrinal_das@cree.com
FU DARPA [# N00014-05-C-0202]
FX This work was supported by DARPA contract # N00014-05-C-0202, monitored
by Sharon Beerman-Curtin and Terry Ericsen.
NR 4
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U1 0
U2 9
PU TRANS TECH PUBLICATIONS LTD
PI DURNTEN-ZURICH
PA KREUZSTRASSE 10, 8635 DURNTEN-ZURICH, SWITZERLAND
SN 0255-5476
BN 978-3-03785-419-8; 978-3-03813-833-4
J9 MATER SCI FORUM
PY 2012
VL 717-720
BP 1225
EP +
DI 10.4028/www.scientific.net/MSF.717-720.1225
PG 2
WC Materials Science, Multidisciplinary
SC Materials Science
GA BCA44
UT WOS:000309431000293
ER
PT S
AU Thirumalai, RVKG
Krishnan, B
Levin, I
Davydov, AV
Sundaresan, S
Merrett, JN
Koshka, Y
AF Thirumalai, Rooban Venkatesh K. G.
Krishnan, Bharat
Levin, Igor
Davydov, Albert V.
Sundaresan, Siddarth
Merrett, J. Neil
Koshka, Yaroslav
BE Devaty, RP
Dudley, M
Chow, TP
Neudeck, PG
TI Growth of SiC Nanowires on Different Planes of 4H-SiC Substrates
SO SILICON CARBIDE AND RELATED MATERIALS 2011, PTS 1 AND 2
SE Materials Science Forum
LA English
DT Proceedings Paper
CT 14th International Conference on Silicon Carbide and Related Materials
(ICSCRM 2011)
CY SEP 11-16, 2011
CL Cleveland, OH
SP Cree, Keithley Instruments, AIXTRON, Dow Corn Elect Solut, Gen Elect, CuttingEdgeIons com, Off Naval Res Global, NASA Glenn Res Ctr, Infineon, SemiSouth, Microsemi, OAI
DE nanowires; epitaxial growth; CVD; chemical vapor deposition
ID SILICON-CARBIDE NANOWIRES
AB Growth of SiC nanowires (NWs) on monocrystalline 4H-SiC substrates was conducted to investigate a possibility of NW alignment and polytype control. The growth directions of the NWs on the top surfaces and the vertical sidewalls of 4H-SiC mesas having different crystallographic orientations were investigated. The majority of the NWs crystallize in the 3C polytype with the < 111 > growth axis. Six orientations of the 3C < 111 > NWs axis with respect to the substrate were obtained simultaneously when growing on the (0001) plane. In contrast, no more than two NW axis orientations coexisted when growing on a particular mesa sidewall. Growth on a particular {10-10} plane resulted in only one NW axis orientation, giving well-aligned NWs.
C1 [Thirumalai, Rooban Venkatesh K. G.; Krishnan, Bharat; Koshka, Yaroslav] Mississippi State Univ, Dept Elect & Comp Engn, Mississippi State, MS 39762 USA.
[Levin, Igor; Davydov, Albert V.] Natl Inst Stand & Technol, Gaithersburg, MD 20899 USA.
[Sundaresan, Siddarth] GeneSiC Semicond Inc, Dulles, VA 20166 USA.
[Merrett, J. Neil] US Air Force, Res Lab, Wright Patterson AFB, Wright Patterson AFB, OH 45433 USA.
RP Koshka, Y (reprint author), Mississippi State Univ, Dept Elect & Comp Engn, Mississippi State, MS 39762 USA.
EM rk219@msstate.edu; bharat.kris@gmail.com; igor.levin@nist.gov;
albert.davydov@nist.gov; sid@genesicsemi.com;
Joseph.Merrett@wpafb.af.mil; ykoshka@ece.msstate.edu
RI Davydov, Albert/F-7773-2010
OI Davydov, Albert/0000-0003-4512-2311
NR 19
TC 0
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U1 0
U2 2
PU TRANS TECH PUBLICATIONS LTD
PI DURNTEN-ZURICH
PA KREUZSTRASSE 10, 8635 DURNTEN-ZURICH, SWITZERLAND
SN 0255-5476
BN 978-3-03785-419-8; 978-3-03813-833-4
J9 MATER SCI FORUM
PY 2012
VL 717-720
BP 1279
EP +
DI 10.4028/www.scientific.net/MSF.717-720.1279
PG 2
WC Materials Science, Multidisciplinary
SC Materials Science
GA BCA44
UT WOS:000309431000306
ER
PT J
AU Zan, GH
Tan, CM
Deserno, M
Lanni, F
Losche, M
AF Zan, Goh Haw
Tan, Cheemeng
Deserno, Markus
Lanni, Frederick
Loesche, Mathias
TI Hemifusion of giant unilamellar vesicles with planar hydrophobic
surfaces: a fluorescence microscopy study
SO SOFT MATTER
LA English
DT Article
ID BILAYER-LIPID MEMBRANES; SUPPORTED PHOSPHOLIPID-BILAYERS; SELF-ASSEMBLED
MONOLAYERS; ATOMIC-FORCE MICROSCOPY; ALPHA-HEMOLYSIN; ION CHANNELS;
SPECTROSCOPY; TRANSPORT; KINETICS; FUSION
AB Vesicle adhesion and fusion to interfaces are frequently used for the construction of biomimetic surfaces in biosensors and drug delivery. Ubiquitous in cell biology, vesicle fusion involves the transformation of two separate membranes into one contiguous lipid bilayer. In distinction, the deposition of vesicle membranes to hydrophobic surfaces requires the transformation of a lipidic bilayer into a monomolecular layer - a topologically distinct process termed hemifusion. Here, we used hydrophobically terminated self-assembled monolayers (SAMs) on solid surfaces to track the hemifusion of fluorescently labeled giant unilamellar vesicles (GUVs) at the single vesicle level with video time resolution (approximate to 53 ms). We observed that a dilute monolayer, consisting of lipid extracted from the outer GUV leaflet, spreads outward across the hydrophobic surface from the vesicle adhesion site. Subsequently, bilayer hemifusion occurs by vesicle rupture near the hydrophobic surface, followed by spreading of lipid in a dense monolayer. GUV lipids thus transfer to the SAM surface in two concentric zones: an outer hemifusion zone comprises lipids drawn from the outer GUV leaflet and an inner hemifusion zone comprises lipids from both the inner and outer GUV leaflets and grows at a rate of approximate to 1000 mu m(2) s(-1) (dA/dt = 970 +/- 430 mm(2) s(-1) in n = 22 independent experiments). This growth rate is quantitatively consistent with the assumption that the spreading of the monolayer is entirely driven by the difference in surface energies of the hydrophobic and the lipid-covered SAM surfaces, which is dissipated by friction of the spreading monolayer on the SAM. Lipid transfer between the inner and outer GUV leaflets occurs via a hemifusion pore that forms early in the process near the membrane contact site. This pore also permits expulsion of water from the GUV interior as the vesicle contracts onto the contact site.
C1 [Zan, Goh Haw; Deserno, Markus; Loesche, Mathias] Carnegie Mellon Univ, Dept Phys, Pittsburgh, PA 15213 USA.
[Tan, Cheemeng] Carnegie Mellon Univ, Ray & Stephanie Lane Ctr Computat Biol, Pittsburgh, PA 15213 USA.
[Lanni, Frederick] Carnegie Mellon Univ, Dept Biol Sci, Pittsburgh, PA 15213 USA.
[Loesche, Mathias] Carnegie Mellon Univ, Dept Biomed Engn, Pittsburgh, PA 15213 USA.
[Loesche, Mathias] NIST, Ctr Neutron Res, Gaithersburg, MD 20899 USA.
RP Losche, M (reprint author), Carnegie Mellon Univ, Dept Phys, 5000 Forbes Ave, Pittsburgh, PA 15213 USA.
EM quench@cmu.edu
RI Deserno, Markus/P-1699-2014; Losche, Mathias/J-2986-2013
OI Deserno, Markus/0000-0001-5692-1595; Losche, Mathias/0000-0001-6666-916X
FU National Institute of Aging [1 P01 AG032131]; National Science
Foundation [CMMI 0941690]; Lane fellowship
FX We thank Siddharth Shenoy for assistance with the fluorescence
microscopy experiments. This work was partially supported by the
National Institute of Aging (1 P01 AG032131), the National Science
Foundation (CMMI 0941690) and the Lane fellowship (CT).
NR 70
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Z9 4
U1 8
U2 37
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1744-683X
J9 SOFT MATTER
JI Soft Matter
PY 2012
VL 8
IS 42
BP 10877
EP 10886
DI 10.1039/c2sm25702e
PG 10
WC Chemistry, Physical; Materials Science, Multidisciplinary; Physics,
Multidisciplinary; Polymer Science
SC Chemistry; Materials Science; Physics; Polymer Science
GA 033VL
UT WOS:000310829400011
PM 25383087
ER
PT J
AU Walters, AW
Holzer, DM
Faulkner, JR
Warren, CD
Murphy, PD
McClure, MM
AF Walters, Annika W.
Holzer, Damon M.
Faulkner, James R.
Warren, Charles D.
Murphy, Patrick D.
McClure, Michelle M.
TI Quantifying Cumulative Entrainment Effects for Chinook Salmon in a
Heavily Irrigated Watershed
SO TRANSACTIONS OF THE AMERICAN FISHERIES SOCIETY
LA English
DT Article
ID FISH ENTRAINMENT; CUTTHROAT TROUT; MARKED ANIMALS; 2-VECTOR FLOWS;
RIVER; RESTORATION; RECOVERY; SURVIVAL; CANALS; CONSERVATION
AB Pacific salmon Oncorhynchus spp. experience multiple small-scale disturbances throughout their freshwater habitat, but the cumulative effect of these disturbances is often not known or not easily quantifiable. One such disturbance is water diversions, which can entrain fish and alter streamflow regimes. Threatened Lemhi River (Idaho) Chinook salmon O. tshawytscha smolts encounter 41-71 water diversions during their out-migration. We used passive integrated transponder tag data to model the entrainment rate of Chinook salmon smolts as a function of the proportion of water removed by an irrigation diversion. Under median-streamflow conditions with unscreened diversions, the estimated cumulative effect of the diversions was a loss of 71.1% of out-migrating smolts due to entrainment. This is a large potential source of mortality, but screening is an effective mitigation strategy, as estimated mortality was reduced to 1.9% when all diversions were screened. If resources are limited, targeting the diversions that remove a large amount of water and diversions in locations with high fish encounter rates is most effective. Our modeling approach could be used to quantify the entrainment effects of water diversions and set screening priorities for other watersheds.
C1 [Walters, Annika W.; Holzer, Damon M.; Faulkner, James R.] NW Fisheries Sci Ctr, Natl Marine Fisheries Serv, Natori, Miyagi 98112, Japan.
[Warren, Charles D.; Murphy, Patrick D.] Idaho Dept Fish & Game, Anadromous Fish Screen Program, Salmon, ID 83467 USA.
[McClure, Michelle M.] NW Fisheries Sci Ctr, Natl Marine Fisheries Serv, Seattle, WA 98112 USA.
RP Walters, AW (reprint author), Univ Wyoming, US Geol Survey, Wyoming Cooperat Fish & Wildlife Res Unit, Dept 3166, 1000 E Univ Ave, Laramie, WY 82071 USA.
EM annika.walters@uwyo.edu
RI McClure, Michelle/O-7853-2015
OI McClure, Michelle/0000-0003-4791-8719
FU National Research Council
FX We thank Michael Ciscell and Morgan Case (IDWR) for providing the water
rights GIS layers and guidance on how to analyze them; we also thank
Bryan Nordlund, Paul McElhany, Al Zale, Tim Grabowski, and two anonymous
reviewers for providing helpful comments on the manuscript. A.W.W. was
supported by a National Research Council research associateship. The use
of trade or product names does not constitute endorsement by the U.S.
Government.
NR 35
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U2 10
PU TAYLOR & FRANCIS INC
PI PHILADELPHIA
PA 325 CHESTNUT ST, SUITE 800, PHILADELPHIA, PA 19106 USA
SN 0002-8487
J9 T AM FISH SOC
JI Trans. Am. Fish. Soc.
PY 2012
VL 141
IS 5
BP 1180
EP 1190
DI 10.1080/00028487.2012.679019
PG 11
WC Fisheries
SC Fisheries
GA 030ZM
UT WOS:000310608700002
ER
PT J
AU Renkawitz, MD
Sheehan, TF
Goulette, GS
AF Renkawitz, Mark D.
Sheehan, Timothy F.
Goulette, Graham S.
TI Swimming Depth, Behavior, and Survival of Atlantic Salmon Postsmolts in
Penobscot Bay, Maine
SO TRANSACTIONS OF THE AMERICAN FISHERIES SOCIETY
LA English
DT Article
ID MARINE-PHASE ATLANTIC; SALAR POST-SMOLTS; MIGRATORY BEHAVIOR; SEAWARD
MIGRATION; ESTUARINE MIGRATION; NORTHWEST ATLANTIC; COASTAL MIGRATION;
RIVER ESTUARY; SEA-TROUT; WILD
AB To gain information on postsmolt dynamics of emigrating Atlantic salmon Salmo salar through Penobscot Estuary and Penobscot Bay, Maine, we conducted a telemetry experiment in 2005. We implanted 26 salmon smolts with ultrasonic depth tags, and monitored movement activity and fish passage with linear detection arrays through 44.2 km of the estuary and 45.5 km of the bay. During daylight in the bay, greater than 95% of the detections occurred in water depths of 5 m or less, but depths to 37 m were recorded. At night, 99% of the detections were in the top 5 m of the water column and maximum depth was 9 m. Overall survival was 39% and was highest for smaller fish and those released earlier in the smolt run, when river discharge was greater. Rapid emigration (i.e., approximately 1 km/h) and preferential surface orientation improved survival. These results verify that postsmolts are primarily surface oriented in the waters of Penobscot Bay and that they may experience high rates of nearshore mortality despite their short residence time. Detailed emigration and behavioral data such as these allow scientists and managers to delineate areas of high mortality to develop strategies that improve survival, and provide marine spatial planners information to minimize impacts of coastal zone development.
C1 [Renkawitz, Mark D.; Sheehan, Timothy F.] NOAA, Natl Marine Fisheries Serv, NE Fisheries Sci Ctr, Woods Hole, MA 02543 USA.
[Goulette, Graham S.] NOAA, Natl Marine Fisheries Serv, NE Fisheries Sci Ctr, Orono, ME 04473 USA.
RP Renkawitz, MD (reprint author), NOAA, Natl Marine Fisheries Serv, NE Fisheries Sci Ctr, 166 Water St, Woods Hole, MA 02543 USA.
EM mark.renkawitz@noaa.gov
NR 66
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U1 1
U2 22
PU TAYLOR & FRANCIS INC
PI PHILADELPHIA
PA 530 WALNUT STREET, STE 850, PHILADELPHIA, PA 19106 USA
SN 0002-8487
EI 1548-8659
J9 T AM FISH SOC
JI Trans. Am. Fish. Soc.
PY 2012
VL 141
IS 5
BP 1219
EP 1229
DI 10.1080/00028487.2012.688916
PG 11
WC Fisheries
SC Fisheries
GA 030ZM
UT WOS:000310608700005
ER
PT J
AU Warren, DR
McClure, MM
AF Warren, Dana R.
McClure, Michelle M.
TI Quantifying Salmon-Derived Nutrient Loads from the Mortality of
Hatchery-Origin Juvenile Chinook Salmon in the Snake River Basin
SO TRANSACTIONS OF THE AMERICAN FISHERIES SOCIETY
LA English
DT Article
ID PASSIVE INTEGRATED TRANSPONDERS; PACIFIC SALMON; FRESH-WATER;
SOUTHEASTERN ALASKA; SPAWNING SALMON; STREAM PRODUCTIVITY; DISSOLVED
NUTRIENTS; CALIFORNIA STREAMS; CARCASS ADDITION; ATLANTIC SALMON
AB Hatchery supplementation of anadromous salmon is extensive across the Pacific Northwest region with millions of juvenile salmon stocked annually. The influence of hatchery-origin fish as prey items in recipient ecosystems has been explored, but influences of these fish on broader stream nutrient dynamics has not been well-studied. Salmon-derived nutrients (SDN) associated with the mortality of adult anadromous salmon provide key subsidies to freshwater habitats. While a number of studies have estimated current and historic SDN loading from returning wild salmon, SDN contributions from the mortality of hatchery-origin juveniles (many of which die in the stream prior to emigration) remains largely unknown. We conducted a mass balance analysis of SDN input and export via hatchery activities (stocking and broodstock collection) in the Snake River watershed. Using Chinook salmon Oncorhynchus tshawytscha as a model species, we accounted for yearly SDN input (via hatchery-origin juvenile fish mortality) and export (via broodstock collections and presmolt growth) over 6 years (20022007) in the portion of the Snake River upstream from Lower Granite Dam accessible to anadromous fish. In the year with highest smolt mortality (2003), hatchery-origin smolt mortality provided a net input of SDN equivalent to approximately 8,100 returning adults. In the year with lowest smolt mortality (2004), hatchery activities collectively yielded a net loss of nutrients. Although the mass of SDN from hatchery-origin smolts may be presented in adult equivalencies, functional influences of SDN from hatchery smolt mortality are likely to differ. Salmon-derived nutrients from hatcheries enter food webs through largely piscivorous pathways whereas SDN from adult carcasses enter food webs through multiple pathways at multiple trophic levels. The SDN from hatchery-origin smolts probably influence different components of the food web more than do adult carcasses and have the potential to more directly affect predator populations.
C1 [Warren, Dana R.; McClure, Michelle M.] NOAA, NW Fisheries Sci Ctr, Seattle, WA 98112 USA.
RP Warren, DR (reprint author), Oregon State Univ, Dept Fisheries & Wildlife, 104 Nash Hall, Corvallis, OR 97331 USA.
EM dana.warren@oregonstate.edu
RI McClure, Michelle/O-7853-2015
OI McClure, Michelle/0000-0003-4791-8719
FU National Research Council's Post-Doctoral Fellowship Program; National
Oceanographic and Atmospheric Administration (NOAA)
FX D.R.W. and M. M. M. conceived of this idea together. Initial analysis
and writing were conducted by D. R. W. with substantial input and
revision on all aspects of the paper provided by M. M. M. We thank John
Baily, Neil Bettez, Chris Caudill, Robbins Church, Laura Cowger, Ann
Gannam, Damon Holzer, Jeff Jorgensen, Matt Keefer, Greg Kovalchuck, Kate
Macneale, Doug Marsh, David Noakes, Julie Pett-Ridge, Mike Rust, Mark
Scheuerell, Keith Nislow, and two anonymous reviewers who provided
valuable input and important information for this project. Funding was
provided by the National Research Council's Post-Doctoral Fellowship
Program and The National Oceanographic and Atmospheric Administration
(NOAA). This work does not reflect the official views of NOAA or any
other agency or funding source.
NR 41
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U1 1
U2 14
PU TAYLOR & FRANCIS INC
PI PHILADELPHIA
PA 530 WALNUT STREET, STE 850, PHILADELPHIA, PA 19106 USA
SN 0002-8487
EI 1548-8659
J9 T AM FISH SOC
JI Trans. Am. Fish. Soc.
PY 2012
VL 141
IS 5
BP 1287
EP 1294
DI 10.1080/00028487.2012.686950
PG 8
WC Fisheries
SC Fisheries
GA 030ZM
UT WOS:000310608700012
ER
PT J
AU Johnson, CL
Roni, P
Pess, GR
AF Johnson, Christopher L.
Roni, Philip
Pess, George R.
TI Parental Effect as a Primary Factor Limiting Egg-to-Fry Survival of
Spring Chinook Salmon in the Upper Yakima River Basin
SO TRANSACTIONS OF THE AMERICAN FISHERIES SOCIETY
LA English
DT Article
ID LIFE-HISTORY TRAITS; ONCORHYNCHUS-TSHAWYTSCHA; 1ST-GENERATION HATCHERY;
PACIFIC SALMON; FINE-SEDIMENT; SPAWNING-HABITAT; ARTIFICIAL STREAM;
DISSOLVED-OXYGEN; BREEDING SUCCESS; BURIAL DEPTHS
AB Few field estimates of egg-to-fry survival of Chinook salmon Oncorhynchus tshawytscha exist, although it is one of the major factors thought to limit freshwater production and recovery of Chinook salmon populations. This is likely due to the challenges of estimating survival at this life stage, which is further complicated by the variety of methods that have been employed. Our study objectives were to (1) develop a method by which spring Chinook salmon egg-to-fry survival could be estimated at a large spatial scale, and (2) investigate the primary factors affecting survival in the natural environment. We conducted a field experiment using 81 artificial redds to test our proposed method for evaluating egg-to-fry survival at a basin scale and to evaluate the effects of parentage (adult mating), river reach, and fine sediment infiltration on survival in the upper Yakima River basin, Washington. Egg-to-fry survival and preemergent Chinook salmon fry developmental stage were significantly different among matings, but were not detectably different among reaches. Fine sediment accumulation in egg boxes from artificial redds was largely below published threshold levels, explained less than 6% of the variation in survival, and was not correlated with developmental stage. In contrast, survival of individual matings in the natural environment and those same matings incubated under controlled hatchery conditions were highly correlated. Our study suggests that in years of low scour and potentially ideal incubation conditions, parental effects play an important role in determining in situ egg-to-fry survival, and that extensive replication and tracking of gamete viability is needed to separate parental effects from environmental factors affecting survival. We provide standardized methods for collecting egg-to-fry survival data and outline a number of potential biases that should be addressed in future research.
C1 [Johnson, Christopher L.] Washington Dept Fish & Wildlife, Olympia, WA 98501 USA.
[Roni, Philip; Pess, George R.] Natl Marine Fisheries Serv, NW Fisheries Sci Ctr, Fish Ecol Div, Watershed Program, Natori, Miyagi 98112, Japan.
RP Johnson, CL (reprint author), Washington Dept Fish & Wildlife, 600 Capitol Way N, Olympia, WA 98501 USA.
EM johnsclj@dfw.wa.gov
FU NOAA
FX We would like to thank the many people that helped to make this study
possible: Anthony Fritts, Todd Pearsons, Mike Tonseth, Andrew Murdoch,
David Sear, Dave Fast, Andrew Dittman, Ryan Klett, and Bill Bosch
provided essential input through the inception and development of the
study, provided helpful comments through review of the initial
manuscript, or both; Gabriel Stotz, Trenton De Boer, Danielle Sevold,
Krystal Rodriguez, Gabriel Temple, Nick Mankus, Nicole Stokes, Tim
Webster, Zack Mays, Trenton De Boer, Tanya Lamb, Clint Deason, and Diana
Dechand contributed greatly in the field. We also thank Steve Schroder,
Curt Knudsen, Chad Stockton, Matt Sizer, Ben Backstrom, Charlie Strom,
and the CESRF staff for their help at the CESRF. Administrative,
editing, and field support were provided by Molly Kelley and Bryan
Bachman-Rhodes. Funding for this study was provided by NOAA. Reference
to trade names does not imply endorsement by the U.S. Government.
NR 57
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U1 2
U2 17
PU TAYLOR & FRANCIS INC
PI PHILADELPHIA
PA 325 CHESTNUT ST, SUITE 800, PHILADELPHIA, PA 19106 USA
SN 0002-8487
J9 T AM FISH SOC
JI Trans. Am. Fish. Soc.
PY 2012
VL 141
IS 5
BP 1295
EP 1309
DI 10.1080/00028487.2012.690815
PG 15
WC Fisheries
SC Fisheries
GA 030ZM
UT WOS:000310608700013
ER
PT J
AU Madenjian, CP
David, SR
Pothoven, SA
AF Madenjian, Charles P.
David, Solomon R.
Pothoven, Steven A.
TI Effects of Activity and Energy Budget Balancing Algorithm on Laboratory
Performance of a Fish Bioenergetics Model
SO TRANSACTIONS OF THE AMERICAN FISHERIES SOCIETY
LA English
DT Article
ID LAKE-MICHIGAN ALEWIVES; SALVELINUS-NAMAYCUSH; SYSTEMATIC-ERROR; YELLOW
PERCH; CONSUMPTION; TROUT; MANAGEMENT; DYNAMICS; BEHAVIOR; GROWTH
AB We evaluated the performance of the Wisconsin bioenergetics model for lake trout Salvelinus namaycush that were fed ad libitum in laboratory tanks under regimes of low activity and high activity. In addition, we compared model performance under two different model algorithms: (1) balancing the lake trout energy budget on day t based on lake trout energy density on day t and (2) balancing the lake trout energy budget on day t based on lake trout energy density on day t + 1. Results indicated that the model significantly underestimated consumption for both inactive and active lake trout when algorithm 1 was used and that the degree of underestimation was similar for the two activity levels. In contrast, model performance substantially improved when using algorithm 2, as no detectable bias was found in model predictions of consumption for inactive fish and only a slight degree of overestimation was detected for active fish. The energy budget was accurately balanced by using algorithm 2 but not by using algorithm 1. Based on the results of this study, we recommend the use of algorithm 2 to estimate food consumption by fish in the field. Our study results highlight the importance of accurately accounting for changes in fish energy density when balancing the energy budget; furthermore, these results have implications for the science of evaluating fish bioenergetics model performance and for more accurate estimation of food consumption by fish in the field when fish energy density undergoes relatively rapid changes.
C1 [Madenjian, Charles P.] US Geol Survey, Great Lakes Sci Ctr, Ann Arbor, MI 48105 USA.
[David, Solomon R.] Univ Michigan, Sch Nat Resources & Environm, Ann Arbor, MI 48109 USA.
[Pothoven, Steven A.] NOAA, Great Lakes Environm Res Lab, Lake Michigan Field Stn, Muskegon, MI 49441 USA.
RP Madenjian, CP (reprint author), US Geol Survey, Great Lakes Sci Ctr, 1451 Green Rd, Ann Arbor, MI 48105 USA.
EM cmadenjian@usgs.gov
OI Pothoven, Steven/0000-0002-7992-5422
FU Great Lakes Fishery Commission
FX Linda Begnoche, Steven Farha, Kevin Keeler, Melissa Kostich, Justin
Londer, and Lynn Ogilvie are gratefully acknowledged for their
assistance with running the laboratory experiment. Steven Constant
measured flow rates in the laboratory tanks. The Sullivan Creek National
Fish Hatchery (U. S. Fish and Wildlife Service) provided the lake trout
used in our laboratory experiment. We thank Yu-Chun Kao for his work in
revising the bioenergetics model software package. James Breck and
Steven Hewett reviewed the manuscript and provided helpful suggestions
for its improvement. This work was funded by a research grant awarded by
the Great Lakes Fishery Commission to C. P. M. This article is
Contribution 1692 of the U. S. Geological Survey Great Lakes Science
Center and is Contribution 1628 of the National Oceanic and Atmospheric
Administration Great Lakes Environmental Research Laboratory.
NR 31
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U1 2
U2 18
PU TAYLOR & FRANCIS INC
PI PHILADELPHIA
PA 325 CHESTNUT ST, SUITE 800, PHILADELPHIA, PA 19106 USA
SN 0002-8487
J9 T AM FISH SOC
JI Trans. Am. Fish. Soc.
PY 2012
VL 141
IS 5
BP 1328
EP 1337
DI 10.1080/00028487.2012.692346
PG 10
WC Fisheries
SC Fisheries
GA 030ZM
UT WOS:000310608700015
ER
PT J
AU Csaba, G
Pufall, M
Rippard, W
Porod, W
AF Csaba, Gyoergy
Pufall, Matt
Rippard, William
Porod, Wolfgang
GP IEEE
TI Modeling of Coupled Spin Torque Oscillators for Applications in
Associative Memories
SO 2012 12TH IEEE CONFERENCE ON NANOTECHNOLOGY (IEEE-NANO)
LA English
DT Proceedings Paper
CT 12th IEEE International Conference on Nanotechnology (IEEE-NANO)
CY AUG 20-23, 2012
CL Birmingham, ENGLAND
SP IEEE, IEEE Nanotechnol Council, Univ Birmingham, Inst Phys (IOP)
DE Oscillatory associative memories; oscillatory neural networks; spin
torque oscillators
AB This paper presents micromagnetic and circuit-level models describing the behavior of spin-torque oscillators (STOs). We demonstrate micromagnetic models that are in good agreement with experimental models for both individual and interconnected STOs and show that one can construct compact models based on the macrospin-approximation that match well with a full micromagnetic description. We study synchronization phenomena in various STOs, which are interconnected electrically or magnetically. The presented models can be used for studying complex networks of interconnected STOs. These networks may serve as hardware for oscillatory associative memories.
C1 [Csaba, Gyoergy; Porod, Wolfgang] Univ Notre Dame, Ctr Nano Sci & Technol NDnano, Notre Dame, IN 46556 USA.
[Pufall, Matt; Rippard, William] NIST, Boulder, CO 80305 USA.
RP Csaba, G (reprint author), Univ Notre Dame, Ctr Nano Sci & Technol NDnano, Notre Dame, IN 46556 USA.
RI Csaba, Gyorgy/O-9720-2015
OI Csaba, Gyorgy/0000-0001-7592-0256
NR 8
TC 0
Z9 0
U1 1
U2 5
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-4673-2200-3
PY 2012
PG 4
WC Engineering, Electrical & Electronic; Nanoscience & Nanotechnology
SC Engineering; Science & Technology - Other Topics
GA BCE00
UT WOS:000309933900315
ER
PT J
AU Deng, Z
Smolyanitsky, A
Li, QY
Feng, XQ
Cannara, RJ
AF Deng, Zhao
Smolyanitsky, Alex
Li, Qunyang
Feng, Xi-Qiao
Cannara, Rachel J.
GP IEEE
TI Toward a Probe-Based Method for Determining Exfoliation Energies of
Lamellar Materials
SO 2012 12TH IEEE CONFERENCE ON NANOTECHNOLOGY (IEEE-NANO)
LA English
DT Proceedings Paper
CT 12th IEEE International Conference on Nanotechnology (IEEE-NANO)
CY AUG 20-23, 2012
CL Birmingham, ENGLAND
SP IEEE, IEEE Nanotechnol Council, Univ Birmingham, Inst Phys (IOP)
AB We discuss a potential new measurement application based on nanotribological measurements and simulations of the model lamellar material graphite. While frictional forces always oppose motion, we have observed that friction increases with decreasing load on aged graphite using atomic force microscopy (AFM). This results in an effectively negative nanoscale coefficient of friction. The magnitude of the friction coefficient increases with tip-sample adhesion. Through molecular dynamics and finite element simulations, we have demonstrated that the negative coefficient arises from an increase in out-of-plane deformability of the top layer of graphite with lifting, and is not a result of a variation in atomic corrugation or other material property. Viscoelastic waves which dissipate energy during sliding are more easily generated in the top layer of graphite when it is partially (and reversibly) exfoliated by the AFM tip. As a consequence, the magnitude of the negative friction coefficient is determined by the ratio of the work of adhesion to the exfoliation energy, providing a potential pathway toward the use of friction force microscopy for straightforward determination of the exfoliation energies of lamellar materials.
C1 [Deng, Zhao; Cannara, Rachel J.] NIST, Ctr Nanoscale Sci & Technol, Gaithersburg, MD 20899 USA.
[Smolyanitsky, Alex] NIST, Mat Measurement Lab, Boulder, CO 80305 USA.
[Li, Qunyang; Feng, Xi-Qiao] Tsinghua Univ, Sch Aerosp, Dept Engn Mech,Ctr Nano & Micro Mech, Appl Mech Lab, Beijing 100084, Peoples R China.
RP Cannara, RJ (reprint author), NIST, Ctr Nanoscale Sci & Technol, Gaithersburg, MD 20899 USA.
EM zhao.deng@nist.gov; alex.smolyanitsky@nist.gov; qunyang@tsinghua.edu.cn;
fengxq@tsinghua.edu.cn; rachel.cannara@nist.gov
RI Li, Qunyang/A-2368-2011
OI Li, Qunyang/0000-0002-6865-3863
NR 13
TC 0
Z9 0
U1 0
U2 3
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-4673-2200-3
PY 2012
PG 5
WC Engineering, Electrical & Electronic; Nanoscience & Nanotechnology
SC Engineering; Science & Technology - Other Topics
GA BCE00
UT WOS:000309933900068
ER
PT J
AU Kang, MG
Lezec, H
Kallaher, RL
Sharifi, F
AF Kang, M. -G.
Lezec, H.
Kallaher, R. L.
Sharifi, F.
GP IEEE
TI Field Emission from Nanoporous Silicon Carbide
SO 2012 12TH IEEE CONFERENCE ON NANOTECHNOLOGY (IEEE-NANO)
LA English
DT Proceedings Paper
CT 12th IEEE International Conference on Nanotechnology (IEEE-NANO)
CY AUG 20-23, 2012
CL Birmingham, ENGLAND
SP IEEE, IEEE Nanotechnol Council, Univ Birmingham, Inst Phys (IOP)
ID CARBON NANOTUBES; ARRAYS; CATHODES; EMITTERS
AB A new type of cold cathode field emission electron source capable of emission at levels comparable to thermal sources is described. The emitter is a unique structure, comprised of a monolithic and rigid porous semiconductor nanostructure with homogenously distributed emission sites, and is fabricated through a room temperature process which allows for control of emission properties. These electron sources potentially enable breakthroughs in several critical technologies, including microwave electronics and x-ray imaging.
C1 [Lezec, H.; Kallaher, R. L.; Sharifi, F.] NIST, Ctr Nanoscale Sci & Technol, Gaithersburg, MD 20899 USA.
[Kang, M. -G.] Univ Maryland, Maryland Nanoctr, College Pk, MD 20742 USA.
RP Sharifi, F (reprint author), NIST, Ctr Nanoscale Sci & Technol, Gaithersburg, MD 20899 USA.
EM fred.sharifi@nist.gov
NR 17
TC 0
Z9 0
U1 0
U2 5
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-4673-2200-3
PY 2012
PG 4
WC Engineering, Electrical & Electronic; Nanoscience & Nanotechnology
SC Engineering; Science & Technology - Other Topics
GA BCE00
UT WOS:000309933900067
ER
PT J
AU Obeng, YS
Okoro, CA
Kopanski, JJ
AF Obeng, Yaw S.
Okoro, Chukwudi A.
Kopanski, Joseph J.
GP IEEE
TI Metrology for Nanosystems and Nanoelectronics Reliability Assessments
SO 2012 12TH IEEE CONFERENCE ON NANOTECHNOLOGY (IEEE-NANO)
LA English
DT Proceedings Paper
CT 12th IEEE International Conference on Nanotechnology (IEEE-NANO)
CY AUG 20-23, 2012
CL Birmingham, ENGLAND
SP IEEE, IEEE Nanotechnol Council, Univ Birmingham, Inst Phys (IOP)
DE CBCM; charge based capacitance measurement; interconnects; metrology
techniques; nanoelectronics; reliability; three-dimensional integrated
circuits; through silicon vias; TSVs
ID PASSIVATION DIELECTRICS
AB The traditional models and techniques for studying reliability in integrated circuits may not be appropriate for nanoelectronics and nanosystems. In this paper, we present an overview of a number of materials and metrology techniques currently under development in our group at NIST. Among other topics, we will assess the techniques and models currently used for evaluating integrated circuit reliability, as well as present some new approaches.
C1 [Obeng, Yaw S.; Okoro, Chukwudi A.; Kopanski, Joseph J.] NIST, Semicond & Dimens Metrol Div, Phys Measurement Lab, Gaithersburg, MD 20899 USA.
RP Obeng, YS (reprint author), NIST, Semicond & Dimens Metrol Div, Phys Measurement Lab, Gaithersburg, MD 20899 USA.
EM yaw.Obeng@.nist.gov
NR 10
TC 0
Z9 0
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-4673-2200-3
PY 2012
PG 5
WC Engineering, Electrical & Electronic; Nanoscience & Nanotechnology
SC Engineering; Science & Technology - Other Topics
GA BCE00
UT WOS:000309933900001
ER
PT J
AU Vollebregt, S
Chiaramonti, AN
Ishihara, R
Schellevis, H
Beenakker, K
AF Vollebregt, Sten
Chiaramonti, Ann N.
Ishihara, Ryoichi
Schellevis, Hugo
Beenakker, Kees
GP IEEE
TI Contact resistance of low-temperature carbon nanotube vertical
interconnects
SO 2012 12TH IEEE CONFERENCE ON NANOTECHNOLOGY (IEEE-NANO)
LA English
DT Proceedings Paper
CT 12th IEEE International Conference on Nanotechnology (IEEE-NANO)
CY AUG 20-23, 2012
CL Birmingham, ENGLAND
SP IEEE, IEEE Nanotechnol Council, Univ Birmingham, Inst Phys (IOP)
ID RELIABILITY; PERFORMANCE
AB The electrical contact resistance and length dependant resistance of vertically aligned carbon nanotubes (CNT) grown at 500 degrees C with high tube density (10(11) cm(-2)) are investigated by measuring samples with different CNT lengths. Cross-sectional imaging revealed that the CNT tips are well embedded over a length of several hundred nm. The determined contact resistance of 18 k Omega is low, which is attributed to a combination of CNT tip embedding and tip growth mechanism. When the CNT mean free path determined by Raman spectroscopy is compared with that obtained from the electrical measurements, it shows that multiple walls are conducting in parallel per CNT.
C1 [Vollebregt, Sten; Ishihara, Ryoichi; Schellevis, Hugo; Beenakker, Kees] Delft Univ Technol, Fac Elect Engn Math & Comp Sci, Delft Inst Microsyst & Nanoelect, NL-2628 CT Delft, Netherlands.
[Chiaramonti, Ann N.] Natl Inst Stand & Technol, Mat Reliabil Div, Boulder, CO 80305 USA.
RP Vollebregt, S (reprint author), Delft Univ Technol, Fac Elect Engn Math & Comp Sci, Delft Inst Microsyst & Nanoelect, NL-2628 CT Delft, Netherlands.
EM s.vollebregt@tudelft.nl
RI Chiaramonti, Ann/E-7459-2013; Vollebregt, Sten/P-3073-2014
OI Chiaramonti, Ann/0000-0001-9933-3267; Vollebregt,
Sten/0000-0001-6012-6180
NR 22
TC 0
Z9 0
U1 0
U2 7
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-4673-2200-3
PY 2012
PG 5
WC Engineering, Electrical & Electronic; Nanoscience & Nanotechnology
SC Engineering; Science & Technology - Other Topics
GA BCE00
UT WOS:000309933900100
ER
PT S
AU Ryu, SH
Capell, C
Jonas, C
Cheng, L
O'Loughlin, M
Burk, A
Agarwal, A
Palmour, J
Hefner, A
AF Ryu, Sei-Hyung
Capell, Craig
Jonas, Charlotte
Cheng, Lin
O'Loughlin, Michael
Burk, Al
Agarwal, Anant
Palmour, John
Hefner, Allen
GP IEEE
TI Ultra High Voltage (> 12 kV), High Performance 4H-SiC IGBTs
SO 2012 24TH INTERNATIONAL SYMPOSIUM ON POWER SEMICONDUCTOR DEVICES AND ICS
(ISPSD)
SE Proceedings of the International Symposium on Power Semiconductor
Devices & ICs
LA English
DT Proceedings Paper
CT 24th International Symposium on Power Semiconductor Devices and ICs
(ISPSD)
CY JUN 03-07, 2012
CL Bruges, BELGIUM
SP IEEE, IEEE Electron Devices Soc (EDS), IEEE Power Elect Soc (PELS), Inst Elect Engineers Japan (IEEJ), European Ctr Power Elect (ECPE), ABB, Alpha & Omega Semicond, Appl Mat, Fairchild Semicond, Fe, Infineon, Int IOR Rectifier, Micro Gan GmbH, Mitsubishi Elect & Elect, NXP, ON Semicond, Semikron, ST
DE silicon carbide; IGBT; ultra high voltage
AB We present our latest developments in ultra high voltage 4H-SiC IGBTs. A 4H-SiC P-IGBT, with a chip size of 6.7 mm x 6.7 mm and an active area of 0.16 cm(2) exhibited a record high blocking voltage of 15 kV, while showing a room temperature differential specific on-resistance of 24 m Omega-cm(2) with a gate bias of -20 V. A 4H-SiC N-IGBT with the same area showed a blocking voltage of 12.5 kV, and demonstrated a room temperature differential specific on-resistance of 5.3 m Omega-cm(2) with a gate bias of 20 V. Buffer layer design, which includes controlling the doping concentration and the thickness of the field-stop buffer layers, was used to control the charge injection from the backside. Effects on buffer layer design on static characteristics and switching behavior are reported.
C1 [Ryu, Sei-Hyung; Capell, Craig; Jonas, Charlotte; Cheng, Lin; O'Loughlin, Michael; Burk, Al; Agarwal, Anant; Palmour, John] Cree Inc, Durham, NC USA.
[Hefner, Allen] Natl Inst Stand & Technol, Gaithersburg, MD USA.
RP Ryu, SH (reprint author), Cree Inc, Durham, NC USA.
EM Sei-hyung_ryu@cree.com
FU ARPA-E [DE-AR0000110]
FX This work is supported by ARPA-E Contract #DE-AR0000110, monitored by
Dr. Rajeev Ram.
NR 6
TC 28
Z9 28
U1 0
U2 4
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1063-6854
BN 978-1-4577-1595-2
J9 PROC INT SYMP POWER
PY 2012
BP 257
EP 260
PG 4
WC Computer Science, Hardware & Architecture; Engineering, Electrical &
Electronic
SC Computer Science; Engineering
GA BBZ65
UT WOS:000309220400064
ER
PT S
AU Gebril, M
Homaifar, A
Buaba, R
Kihn, E
AF Gebril, Mohamed
Homaifar, Abdollah
Buaba, Ruben
Kihn, Eric
GP IEEE
TI Satellite Imagery Retrieval : Features & Metrics Evaluation
SO 2012 IEEE AEROSPACE CONFERENCE
SE IEEE Aerospace Conference Proceedings
LA English
DT Proceedings Paper
CT IEEE Aerospace Conference
CY MAR 03-10, 2012
CL Big Sky, MT
SP IEEE, AIAA, Phmsoc, AESS
DE Image retrieval; Image classification; Shape feature vector; and
Similarity measure
AB In this paper, an evaluation technique based on several image feature attributes along with image classifications is investigated. Furthermore, a semi-supervised technique based on support vector machine (SVM) for image classification and a Locality Sensitive Hashing (LSH) based searching algorithm to search for similarity of satellite imagery is presented. Given a query image, the goal is to retrieve matching images in the database based on the shape features extracted from satellite imagery data. The experimental results demonstrate superior results based on shape features which provide a better classification accuracy using both support vector machine and the semi-supervised hashing search methods.(1 2)
C1 [Gebril, Mohamed; Homaifar, Abdollah; Buaba, Ruben] North Carolina A&T State Univ, Autonomous Control & IT Ctr, NOAA ISET Ctr, Greensboro, NC 27411 USA.
[Kihn, Eric] NOAA NGDC, Boulder, CO 80305 USA.
RP Gebril, M (reprint author), North Carolina A&T State Univ, Autonomous Control & IT Ctr, NOAA ISET Ctr, Greensboro, NC 27411 USA.
EM mmgebril@ncat.edu; homaifar@ncat.edu; rbuaba@ncat.edu;
Eric.A.Kihn@noaa.gov
FU National Oceanic and Atmospheric Administration Educational Partnership
[NA06OAR4810187]; National Science Foundation [CCF-1029731]
FX We are grateful to the Nation Geophysical data center (NGDC) for
providing access to DMSP imagery data. This work is supported by the
National Oceanic and Atmospheric Administration Educational Partnership
No: N A06OAR4810187. This work is also partially supported in part by
the Expeditions in computing by the National Science Foundation under
Award Number CCF-1029731.
NR 16
TC 0
Z9 0
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1095-323X
BN 978-1-4577-0557-1
J9 AEROSP CONF PROC
PY 2012
PG 6
WC Engineering, Aerospace
SC Engineering
GA BBZ12
UT WOS:000309105301093
ER
PT J
AU DiGangi, JP
Henry, SB
Kammrath, A
Boyle, ES
Kaser, L
Schnitzhofer, R
Graus, M
Turnipseed, A
Park, JH
Weber, RJ
Hornbrook, RS
Cantrell, CA
Maudlin, RL
Kim, S
Nakashima, Y
Wolfe, GM
Kajii, Y
Apel, EC
Goldstein, AH
Guenther, A
Karl, T
Hansel, A
Keutsch, FN
AF DiGangi, J. P.
Henry, S. B.
Kammrath, A.
Boyle, E. S.
Kaser, L.
Schnitzhofer, R.
Graus, M.
Turnipseed, A.
Park, J-H.
Weber, R. J.
Hornbrook, R. S.
Cantrell, C. A.
Maudlin, R. L., III
Kim, S.
Nakashima, Y.
Wolfe, G. M.
Kajii, Y.
Apel, E. C.
Goldstein, A. H.
Guenther, A.
Karl, T.
Hansel, A.
Keutsch, F. N.
TI Observations of glyoxal and formaldehyde as metrics for the
anthropogenic impact on rural photochemistry
SO ATMOSPHERIC CHEMISTRY AND PHYSICS
LA English
DT Article
ID VOLATILE ORGANIC-COMPOUNDS; MASTER CHEMICAL MECHANISM; UNITED-STATES;
AIR-POLLUTION; ATMOSPHERIC FORMALDEHYDE; CARBONYL-COMPOUNDS;
FINE-PARTICLE; SIERRA-NEVADA; SILICA-GEL; GAS-PHASE
AB We present simultaneous fast, in-situ measurements of formaldehyde and glyoxal from two rural campaigns, BEARPEX 2009 and BEACHON-ROCS, both located in Pinus Ponderosa forests with emissions dominated by biogenic volatile organic compounds (VOCs). Despite considerable variability in the formaldehyde and glyoxal concentrations, the ratio of glyoxal to formaldehyde, R-GF, displayed a very regular diurnal cycle over nearly 2 weeks of measurements. The only deviations in R-GF were toward higher values and were the result of a biomass burning event during BEARPEX 2009 and very fresh anthropogenic influence during BEACHON-ROCS. Other rapid changes in glyoxal and formaldehyde concentrations have hardly any affect on R-GF and could reflect transitions between low and high NO regimes. The trend of increased R-GF from both anthropogenic reactive VOC mixtures and biomass burning compared to biogenic reactive VOC mixtures is robust due to the short timescales over which the observed changes in R-GF occurred. Satellite retrievals, which suggest higher R-GF for biogenic areas, are in contrast to our observed trends. It remains important to address this discrepancy, especially in view of the importance of satellite retrievals and in situ measurements for model comparison. In addition, we propose that R-GF represents a useful metric for biogenic or anthropogenic reactive VOC mixtures and, in combination with absolute concentrations of glyoxal and formaldehyde, furthermore represents a useful metric for the extent of anthropogenic influence on overall reactive VOC processing via NOx. In particular, R-GF yields information about not simply the VOCs dominating reactivity in an airmass, but the VOC processing itself that is directly coupled to ozone and secondary organic aerosol production.
C1 [DiGangi, J. P.; Henry, S. B.; Kammrath, A.; Boyle, E. S.; Wolfe, G. M.; Keutsch, F. N.] Univ Wisconsin, Dept Chem, Madison, WI 53706 USA.
[Kaser, L.; Schnitzhofer, R.; Hansel, A.] Univ Innsbruck, Inst Ion Phys & Appl Phys, A-6020 Innsbruck, Austria.
[Graus, M.] Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA.
[Graus, M.] Natl Ocean & Atmospher Adm, Chem Sci Div, Boulder, CO USA.
[Turnipseed, A.; Hornbrook, R. S.; Cantrell, C. A.; Maudlin, R. L., III; Kim, S.; Apel, E. C.; Guenther, A.; Karl, T.] Natl Ctr Atmospher Res, Div Atmospher Chem, Boulder, CO 80307 USA.
[Park, J-H.; Weber, R. J.; Goldstein, A. H.] Univ Calif Berkeley, Dept Environm Sci Policy & Management, Berkeley, CA 94720 USA.
[Maudlin, R. L., III] Univ Helsinki, Dept Phys, Helsinki, Finland.
[Nakashima, Y.; Kajii, Y.] Tokyo Metropolitan Univ, Fac Urban Environm Sci, Div Appl Chem, Tokyo 158, Japan.
[Goldstein, A. H.] Univ Calif Berkeley, Dept Civil & Environm Engn, Berkeley, CA 94720 USA.
RP Keutsch, FN (reprint author), Univ Wisconsin, Dept Chem, 1101 Univ Ave, Madison, WI 53706 USA.
EM keutsch@chem.wisc.edu
RI Karl, Thomas/D-1891-2009; Hansel, Armin/F-3915-2010; Manager, CSD
Publications/B-2789-2015; Graus, Martin/E-7546-2010; Boyle,
Erin/I-4606-2012; Park, Jeong-Hoo/I-2923-2013; Boyle, Erin/N-8543-2013;
Keutsch, Frank/B-2391-2012; Goldstein, Allen/A-6857-2011; nakashima,
yoshihiro/G-1141-2013; Wolfe, Glenn/D-5289-2011
OI Karl, Thomas/0000-0003-2869-9426; Hansel, Armin/0000-0002-1062-2394;
Hornbrook, Rebecca/0000-0002-6304-6554; Graus,
Martin/0000-0002-2025-9242; Boyle, Erin/0000-0002-2725-2895; Boyle,
Erin/0000-0002-2725-2895; Goldstein, Allen/0000-0003-4014-4896;
FU National Science Foundation [ATM 0852406]; NCAR BEACHON project,
NASA-SBIR Phase I & II, Austrian Science Fund (FWF) [L518]; Camille and
Henry Dreyfus Foundation; Austrian Academy of Sciences at the Institute
of Ion Physics and Applied Physics
FX The authors thank the National Science Foundation (ATM 0852406), the
NCAR BEACHON project, NASA-SBIR Phase I & II, Austrian Science Fund
(FWF): [L518], and the Camille and Henry Dreyfus Foundation for support.
We would also like to thank Rainer Volkamer, Jose Garcia, Rebecca
Washenfelder, Cora Young, Catalina Tsai, Jochen Stutz, Folkard Wittrock,
and Andreas Richter for sharing data and for useful discussions. NCAR is
sponsored by the National Science Foundation. Lisa Kaser is a recipient
of a DOC-fFORTE-fellowship of the Austrian Academy of Sciences at the
Institute of Ion Physics and Applied Physics.
NR 66
TC 20
Z9 20
U1 8
U2 76
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1680-7316
EI 1680-7324
J9 ATMOS CHEM PHYS
JI Atmos. Chem. Phys.
PY 2012
VL 12
IS 20
BP 9529
EP 9543
DI 10.5194/acp-12-9529-2012
PG 15
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 029BS
UT WOS:000310470400008
ER
PT J
AU Zhou, C
Penner, JE
Ming, Y
Huang, XL
AF Zhou, C.
Penner, J. E.
Ming, Y.
Huang, X. L.
TI Aerosol forcing based on CAM5 and AM3 meteorological fields
SO ATMOSPHERIC CHEMISTRY AND PHYSICS
LA English
DT Article
ID COMMUNITY ATMOSPHERE MODEL; GLOBAL-MODELS; PARAMETERIZATION;
SIMULATIONS; CLIMATE; AEROCOM; EMISSIONS; TRANSPORT; REPRESENTATION;
DISTRIBUTIONS
AB We use a single aerosol model to explore the effects of the differing meteorological fields from the NCAR CAM5 and GFDL AM3 models. We simulate the global distributions of sulfate, black carbon, organic matter, dust and sea salt using the University of Michigan IMPACT model and use these fields to calculate aerosol direct and indirect forcing, thereby isolating the impacts of the differing meteorological fields.
Over all, the IMPACT-AM3 model predicts larger burdens and longer aerosol lifetimes than the IMPACT-CAM5 model. However, the IMPACT-CAM5 simulations transport more black carbon to the polar regions and more dust from Asia towards North America. These differences can mainly be attributed to differences in: (1) the vertical cloud mass flux and large-scale precipitation fields which determine the wet deposition of aerosols; (2) the in-cloud liquid water content and the cloud coverage which determine the wet aqueous phase production of sulfate. The burden, lifetime and global distribution, especially black carbon in polar regions, are strongly affected by choice of the parameters used for wet deposition.
The total annual mean aerosol optical depth (AOD) at 550 nm ranges from 0.087 to 0.122 for the IMPACT-AM3 model and from 0.138 to 0.186 for the IMPACT-CAM5 model (range is due to different parameters used for wet deposition). Even though IMPACT-CAM5 has smaller aerosol burdens, its AOD is larger due to the much higher relative humidity in CAM5 which leads to more hygroscopic growth. The corresponding global annual average anthropogenic and all-sky aerosol direct forcing at the top of the atmosphere ranges from -0.25 W m(-2) to -0.30 W m(-2) for IMPACT-AM3 and from -0.48 W m(-2) to -0.64 W m(-2) for IMPACT-CAM5. The global annual average anthropogenic 1st aerosol indirect effect at the top of the atmosphere ranges from -1.26 W m(-2) to -1.44 W m(-2) for IMPACT-AM3 and from -1.74 W m(-2) to -1.77 W m(-2) for IMPACT-CAM5.
C1 [Zhou, C.; Penner, J. E.; Huang, X. L.] Univ Michigan, Dept Atmospher Ocean & Space Sci, Ann Arbor, MI 48109 USA.
[Ming, Y.] NOAA, Geophys Fluid Dynam Lab, Princeton, NJ USA.
RP Zhou, C (reprint author), Univ Michigan, Dept Atmospher Ocean & Space Sci, Ann Arbor, MI 48109 USA.
EM zhouc@umich.edu
RI Huang, Xianglei/G-6127-2011; Penner, Joyce/J-1719-2012; Ming,
Yi/F-3023-2012;
OI Huang, Xianglei/0000-0002-7129-614X; Zhou, Cheng/0000-0001-9095-2846
FU NSF [AGS-0946739]
FX This work was funded in by NSF project number AGS-0946739. Computer time
was provided by the NCAR CISL facility. The authors thank Minghuai Wang
and Hongyu Liu for their helpful discussion.
NR 40
TC 6
Z9 6
U1 2
U2 15
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1680-7316
EI 1680-7324
J9 ATMOS CHEM PHYS
JI Atmos. Chem. Phys.
PY 2012
VL 12
IS 20
BP 9629
EP 9652
DI 10.5194/acp-12-9629-2012
PG 24
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 029BS
UT WOS:000310470400013
ER
PT J
AU Lyapustin, A
Korkin, S
Wang, Y
Quayle, B
Laszlo, I
AF Lyapustin, A.
Korkin, S.
Wang, Y.
Quayle, B.
Laszlo, I.
TI Discrimination of biomass burning smoke and clouds in MAIAC algorithm
SO ATMOSPHERIC CHEMISTRY AND PHYSICS
LA English
DT Article
ID AEROSOL PROPERTIES; OPTICAL DEPTH; ABSORPTION; RETRIEVAL
AB The Multi-Angle Implementation of Atmospheric Correction (MAIAC) algorithm makes aerosol retrievals from MODIS data at 1 km resolution providing information about the fine scale aerosol variability. This information is required in different applications such as urban air quality analysis, aerosol source identification etc. The quality of high resolution aerosol data is directly linked to the quality of cloud mask, in particular detection of small (sub-pixel) and low clouds. This work continues research in this direction, describing a technique to detect small clouds and introducing the "smoke test" to discriminate the biomass burning smoke from the clouds. The smoke test relies on a relative increase of aerosol absorption at MODIS wavelength 0.412 mu m as compared to 0.47-0.67 mu m due to multiple scattering and enhanced absorption by organic carbon released during combustion. This general principle has been successfully used in the OMI detection of absorbing aerosols based on UV measurements. This paper provides the algorithm detail and illustrates its performance on two examples of wildfires in US Pacific North-West and in Georgia/Florida of 2007.
C1 [Lyapustin, A.] NASA, Goddard Space Flight Ctr, Atmospheres Lab, Greenbelt, MD 20771 USA.
[Korkin, S.] Univ Space Res Assoc, Columbia, MD USA.
[Wang, Y.] Univ Maryland Baltimore Cty, Baltimore, MD 21228 USA.
[Quayle, B.] US Forest Serv, USDA, Salt Lake City, UT USA.
[Laszlo, I.] NOAA, NESDIS, STAR, Camp Springs, MD USA.
RP Lyapustin, A (reprint author), NASA, Goddard Space Flight Ctr, Atmospheres Lab, Greenbelt, MD 20771 USA.
EM alexei.i.lyapustin@nasa.gov
RI Laszlo, Istvan/F-5603-2010; Lyapustin, Alexei/H-9924-2014
OI Laszlo, Istvan/0000-0002-5747-9708; Lyapustin,
Alexei/0000-0003-1105-5739
FU NASA Terrestrial Ecology Program; NOAA GOES-R program
FX The research of A. Lyapustin, Y. Wang and S. Korkin was funded by the
NASA Terrestrial Ecology Program (D. Wickland) and in part by the NOAA
GOES-R program (M. Goldberg). The work of I. Laszlo is supported by the
NOAA GOES-R program.
NR 24
TC 6
Z9 6
U1 0
U2 11
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1680-7316
EI 1680-7324
J9 ATMOS CHEM PHYS
JI Atmos. Chem. Phys.
PY 2012
VL 12
IS 20
BP 9679
EP 9686
DI 10.5194/acp-12-9679-2012
PG 8
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 029BS
UT WOS:000310470400015
ER
PT J
AU Koo, JH
Wang, Y
Kurosu, TP
Chance, K
Rozanov, A
Richter, A
Oltmans, SJ
Thompson, AM
Hair, JW
Fenn, MA
Weinheimer, AJ
Ryerson, TB
Solberg, S
Huey, LG
Liao, J
Dibb, JE
Neuman, JA
Nowak, JB
Pierce, RB
Natarajan, M
Al-Saadi, J
AF Koo, J. -H.
Wang, Y.
Kurosu, T. P.
Chance, K.
Rozanov, A.
Richter, A.
Oltmans, S. J.
Thompson, A. M.
Hair, J. W.
Fenn, M. A.
Weinheimer, A. J.
Ryerson, T. B.
Solberg, S.
Huey, L. G.
Liao, J.
Dibb, J. E.
Neuman, J. A.
Nowak, J. B.
Pierce, R. B.
Natarajan, M.
Al-Saadi, J.
TI Characteristics of tropospheric ozone depletion events in the Arctic
spring: analysis of the ARCTAS, ARCPAC, and ARCIONS measurements and
satellite BrO observations
SO ATMOSPHERIC CHEMISTRY AND PHYSICS
LA English
DT Article
ID POLAR SUNRISE EXPERIMENT; BOUNDARY-LAYER; SURFACE OZONE; BROMINE
MONOXIDE; GLOBAL OBSERVATIONS; HIGH-LATITUDES; FROST FLOWERS; SEA-SALT;
AIR; AEROSOL
AB Arctic ozone depletion events (ODEs) are caused by halogen catalyzed ozone loss. In situ chemistry, advection of ozone-poor air mass, and vertical mixing in the lower troposphere are important factors affecting ODEs. To better characterize the ODEs, we analyze the combined set of surface, ozonesonde, and aircraft in situ measurements of ozone and bromine compounds during the Arctic Research of the Composition of the Troposphere from Aircraft and Satellites (ARCTAS), the Aerosol, Radiation, and Cloud Processes affecting Arctic Climate (ARCPAC), and the Arctic Intensive Ozonesonde Network Study (ARCIONS) experiments (April 2008). Tropospheric BrO columns retrieved from satellite measurements and back trajectory calculations are also used to investigate the characteristics of observed ODEs. In situ observations from these field experiments are inadequate to validate tropospheric BrO columns derived from satellite measurements. In view of this difficulty, we construct an ensemble of tropospheric column BrO estimates from two satellite (OMI and GOME-2) measurements and with three independent methods of calculating stratospheric BrO columns. Furthermore, we select analysis methods that do not depend on the absolute magnitude of column BrO, such as time-lagged correlation analysis of ozone and tropospheric column BrO, to understand characteristics of ODEs. Time-lagged correlation analysis between in situ (surface and ozonesonde) measurements of ozone and satellite derived tropospheric BrO columns indicates that the ODEs are due to either local halogen-driven ozone loss or short-range (similar to 1 day) transport from nearby regions with ozone depletion. The effect of in situ ozone loss is also evident in the diurnal variation difference between low (10th and 25th percentiles) and higher percentiles of surface ozone concentrations at Alert, Canada. Aircraft observations indicate low-ozone air mass transported from adjacent high-BrO regions. Correlation analyses of ozone with potential temperature and time-lagged tropospheric BrO column show that the vertical extent of local ozone loss is surprisingly deep (1-2 km) at Resolute and Churchill, Canada. The unstable boundary layer during ODEs at Churchill could potentially provide a source of free-tropospheric BrO through convective transport and explain the significant negative correlation between free-tropospheric ozone and tropospheric BrO column at this site.
C1 [Koo, J. -H.; Wang, Y.; Huey, L. G.; Liao, J.] Georgia Inst Technol, Sch Earth & Atmospher Sci, Atlanta, GA 30332 USA.
[Kurosu, T. P.; Chance, K.] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA.
[Rozanov, A.; Richter, A.] Univ Bremen, Inst Environm Phys, D-28359 Bremen, Germany.
[Oltmans, S. J.; Ryerson, T. B.; Neuman, J. A.; Nowak, J. B.] NOAA, Earth Syst Res Lab, Boulder, CO USA.
[Thompson, A. M.] Penn State Univ, Dept Meteorol, University Pk, PA 16802 USA.
[Hair, J. W.; Fenn, M. A.; Natarajan, M.; Al-Saadi, J.] NASA, Langley Res Ctr, Hampton, VA 23665 USA.
[Weinheimer, A. J.] Natl Ctr Atmospher Res, Boulder, CO 80307 USA.
[Solberg, S.] Norwegian Inst Air Res NILU, Kjeller, Norway.
[Dibb, J. E.] Univ New Hampshire, Durham, NH 03824 USA.
[Neuman, J. A.; Nowak, J. B.] Univ Colorado, CIRES, Boulder, CO 80309 USA.
[Pierce, R. B.] NOAA, Natl Environm Satellite Data & Informat Serv, Madison, WI USA.
RP Koo, JH (reprint author), Georgia Inst Technol, Sch Earth & Atmospher Sci, Atlanta, GA 30332 USA.
EM jkoo7@gatech.edu
RI Neuman, Andy/A-1393-2009; Manager, CSD Publications/B-2789-2015;
Thompson, Anne /C-3649-2014; Nowak, John/B-1085-2008; Pierce, Robert
Bradley/F-5609-2010; Liao, Jin/H-4865-2013; Ryerson, Tom/C-9611-2009;
Richter, Andreas/C-4971-2008; Wang, Yuhang/B-5578-2014
OI Neuman, Andy/0000-0002-3986-1727; Thompson, Anne /0000-0002-7829-0920;
Nowak, John/0000-0002-5697-9807; Pierce, Robert
Bradley/0000-0002-2767-1643; Chance, Kelly/0000-0002-7339-7577; Richter,
Andreas/0000-0003-3339-212X;
FU NASA International Polar Year (IPY) Program
FX This work was supported by the NASA International Polar Year (IPY)
Program. We thank Sungyeon Choi for processing the tropospheric column
BrO estimates used in this study. The ozone data at Alert were supplied
by Mike Shaw and Dave Ord from the Canadian Air and Precipitation
Monitoring Network (CAPMoN) of Environment Canada. We thank Tao Zeng for
the development of the back trajectory model.
NR 59
TC 12
Z9 12
U1 4
U2 36
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1680-7316
J9 ATMOS CHEM PHYS
JI Atmos. Chem. Phys.
PY 2012
VL 12
IS 20
BP 9909
EP 9922
DI 10.5194/acp-12-9909-2012
PG 14
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 029BS
UT WOS:000310470400030
ER
PT J
AU Stramma, L
Oschlies, A
Schmidtko, S
AF Stramma, L.
Oschlies, A.
Schmidtko, S.
TI Mismatch between observed and modeled trends in dissolved upper-ocean
oxygen over the last 50 yr
SO BIOGEOSCIENCES
LA English
DT Article
ID HABITAT COMPRESSION; MINIMUM ZONES; PACIFIC; ATLANTIC; HYPOXIA; WORLD
AB Observations and model runs indicate trends in dissolved oxygen (DO) associated with current and ongoing global warming. However, a large-scale observation-tomodel comparison has been missing and is presented here. This study presents a first global compilation of DO measurements covering the last 50 yr. It shows declining upper-ocean DO levels in many regions, especially the tropical oceans, whereas areas with increasing trends are found in the subtropics and in some subpolar regions. For the Atlantic Ocean south of 20 degrees N, the DO history could even be extended back to about 70 yr, showing decreasing DO in the subtropical South Atlantic. The global mean DO trend between 50 degrees S and 50 degrees N at 300 dbar for the period 1960 to 2010 is -0.066 mu mol kg(-1) yr(-1). Results of a numerical biogeochemical Earth system model reveal that the magnitude of the observed change is consistent with CO2-induced climate change. However, the pattern correlation between simulated and observed patterns of past DO change is negative, indicating that the model does not correctly reproduce the processes responsible for observed regional oxygen changes in the past 50 yr. A negative pattern correlation is also obtained for model configurations with particularly low and particularly high diapycnal mixing, for a configuration that assumes a CO2-induced enhancement of the C : N ratios of exported organic matter and irrespective of whether climatological or realistic winds from reanalysis products are used to force the model. Depending on the model configuration the 300 dbar DO trend between 50 degrees S and 50 degrees N is -0.027 to -0.047 mu mol kg(-1) yr(-1) for climatological wind forcing, with a much larger range of -0.083 to +0.027 mu mol kg(-1) yr(-1) for different initializations of sensitivity runs with reanalysis wind forcing. Although numerical models reproduce the overall sign and, to some extent, magnitude of observed ocean deoxygenation, this degree of realism does not necessarily apply to simulated regional patterns and the representation of processes involved in their generation. Further analysis of the processes that can explain the discrepancies between observed and modeled DO trends is required to better understand the climate sensitivity of oceanic oxygen fields and predict potential DO changes in the future.
C1 [Schmidtko, S.] Univ E Anglia, Sch Environm Sci, Norwich NR4 7TJ, Norfolk, England.
[Schmidtko, S.] NOAA, Pacific Marine Environm Lab, Seattle, WA 98115 USA.
[Stramma, L.; Oschlies, A.] Helmholtz Ctr Ocean Res Kiel GEOMAR, D-24105 Kiel, Germany.
RP Stramma, L (reprint author), Univ E Anglia, Sch Environm Sci, Norwich NR4 7TJ, Norfolk, England.
EM lstramma@geomar.de
RI Schmidtko, Sunke/F-3355-2011; Oschlies, Andreas/F-9749-2012
OI Schmidtko, Sunke/0000-0003-3272-7055; Oschlies,
Andreas/0000-0002-8295-4013
FU Deutsche Forschungsgemeinschaft (DFG) [Sonderforschungsbereich 754];
NOAA Climate Program Office
FX The Deutsche Forschungsgemeinschaft (DFG) provided support as part of
the "Sonderforschungsbereich 754" (LS, AO). Additional support was
provided through the NOAA Climate Program Office (SS). The findings and
conclusions in this article are those of the authors and do not
necessarily represent the views of the National Oceanic and Atmospheric
Administration.
NR 50
TC 28
Z9 28
U1 5
U2 52
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1726-4170
EI 1726-4189
J9 BIOGEOSCIENCES
JI Biogeosciences
PY 2012
VL 9
IS 10
BP 4045
EP 4057
DI 10.5194/bg-9-4045-2012
PG 13
WC Ecology; Geosciences, Multidisciplinary
SC Environmental Sciences & Ecology; Geology
GA 029CG
UT WOS:000310471800024
ER
PT J
AU Josell, D
Wheeler, D
Moffat, TP
AF Josell, D.
Wheeler, D.
Moffat, T. P.
TI Modeling Extreme Bottom-Up Filling of Through Silicon Vias
SO JOURNAL OF THE ELECTROCHEMICAL SOCIETY
LA English
DT Article
ID COPPER INTERCONNECT METALLIZATION; ASPECT-RATIO TRENCHES; SUPERCONFORMAL
ELECTRODEPOSITION; SUBMICROMETER TRENCHES;
2-MERCAPTO-5-BENZIMIDAZOLESULFONIC ACID; THROUGH-HOLE; ADDITIVES;
TRANSPORT; PATTERNS; PREDICTION
AB Extreme bottom-up superfilling of through silicon vias (TSV) was recently described wherein deposition occurs on the bottom surface of the vias with negligible deposition on their sidewalls or the field around them. The process uses a deposition suppressing adsorbate subject to breakdown through the metal deposition reaction. Positive feedback associated with this suppressor disruption coupled with resistive electrolyte losses underlies the bottom-up feature filling dynamic by distributing the applied potential between the interface double layer and the bulk electrolyte in a time dependent manner. A simple pseudo steady state model that links suppressor disruption with the potential drop between the reference and working electrodes in resistive electrolytes is shown to capture essential aspects of the bottom-up filling process. Understanding the coupling of potential and additive concentration gradients provides a rational design strategy for bottom-up filling of recessed surface features that offers to minimize unneeded deposition on the substrate surface thereby substantially decreasing fill times and improving materials utilization. (C) 2012 The Electrochemical Society. [DOI: 10.1149/2.009210jes] All rights reserved.
C1 [Josell, D.; Wheeler, D.; Moffat, T. P.] NIST, Div Met, Mat Measurement Lab, Gaithersburg, MD 20899 USA.
RP Josell, D (reprint author), NIST, Div Met, Mat Measurement Lab, Gaithersburg, MD 20899 USA.
EM daniel.josell@nist.gov; thomas.moffat@nist.gov
RI Wheeler, Daniel/C-8994-2009
OI Wheeler, Daniel/0000-0002-2653-7418
NR 31
TC 33
Z9 33
U1 6
U2 78
PU ELECTROCHEMICAL SOC INC
PI PENNINGTON
PA 65 SOUTH MAIN STREET, PENNINGTON, NJ 08534 USA
SN 0013-4651
J9 J ELECTROCHEM SOC
JI J. Electrochem. Soc.
PY 2012
VL 159
IS 10
BP D570
EP D576
DI 10.1149/2.009210jes
PG 7
WC Electrochemistry; Materials Science, Coatings & Films
SC Electrochemistry; Materials Science
GA 010PB
UT WOS:000309105500032
ER
PT J
AU Lafouresse, MC
Bertocci, U
Beauchamp, CR
Stafford, GR
AF Lafouresse, M. C.
Bertocci, U.
Beauchamp, C. R.
Stafford, G. R.
TI Simultaneous Electrochemical and Mechanical Impedance Spectroscopy Using
Cantilever Curvature
SO JOURNAL OF THE ELECTROCHEMICAL SOCIETY
LA English
DT Article
ID IN-SITU STRESS; SURFACE-STRESS; UNDERPOTENTIAL DEPOSITION;
(111)-TEXTURED AU; NANOGRAVIMETRIC MEASUREMENTS; GOLD ELECTRODE; SOLID
ELECTRODES; CHARGE RESPONSE; COPPER ELECTRODEPOSITION; CYCLIC
VOLTAMMETRY
AB Electrochemical impedance spectroscopy is applied to in-situ stress measurements of a gold cantilever electrode in 0.1 mol/L HClO4 as a new technique for studying stress phenomena in thin films. The resonant frequency of the cantilever is found to be inversely proportional to the square of its length as predicted by theory. In the double layer region, a linear response both electrochemically and mechanically is achieved for input signal amplitudes up to 80 mV. For frequencies below the resonant frequency of the cantilever (similar to 20 Hz), the surface stress and the charge are out of phase and the amplitude of the surface stress response f(0) varies linearly with the amplitude of the charge density q(0). A maximal value for f(0)/q(0) of 2 V is obtained in the double layer region in good agreement with experimental and calculated values reported in the literature. (C) 2012 The Electrochemical Society. [DOI: 10.1149/2.055210jes] All rights reserved.
C1 [Lafouresse, M. C.; Bertocci, U.; Beauchamp, C. R.; Stafford, G. R.] NIST, Gaithersburg, MD 20899 USA.
RP Lafouresse, MC (reprint author), NIST, Gaithersburg, MD 20899 USA.
EM gery.stafford@nist.gov
RI Lafouresse, Manon/K-1983-2013
NR 62
TC 12
Z9 12
U1 1
U2 25
PU ELECTROCHEMICAL SOC INC
PI PENNINGTON
PA 65 SOUTH MAIN STREET, PENNINGTON, NJ 08534 USA
SN 0013-4651
J9 J ELECTROCHEM SOC
JI J. Electrochem. Soc.
PY 2012
VL 159
IS 10
BP H816
EP H822
DI 10.1149/2.055210jes
PG 7
WC Electrochemistry; Materials Science, Coatings & Films
SC Electrochemistry; Materials Science
GA 010PB
UT WOS:000309105500063
ER
PT J
AU Juarez, JJ
Mathai, PP
Liddle, JA
Bevan, MA
AF Juarez, Jaime J.
Mathai, Pramod P.
Liddle, J. Alexander
Bevan, Michael A.
TI Multiple electrokinetic actuators for feedback control of colloidal
crystal size
SO LAB ON A CHIP
LA English
DT Article
ID NANOPARTICLE INTERACTIONS; PARTICLES; DEVICES; CRYSTALLIZATION;
MANIPULATION; DYNAMICS; SYMMETRY
AB We report a feedback control method to precisely target the number of colloidal particles in quasi-2D ensembles and their subsequent assembly into crystals in a quadrupole electrode. Our approach relies on tracking the number of particles within a quadrupole electrode, which is used in a real-time feedback control algorithm to dynamically actuate competing electrokinetic transport mechanisms. Particles are removed from the quadrupole using DC-field mediated electrophoretic-electroosmotic transport, while high-frequency AC-field mediated dielectrophoretic transport is used to concentrate and assemble colloidal crystals. Our results show successful control of the size of crystals containing 20 to 250 colloidal particles with less than 10% error. Assembled crystals are characterized by their radius of gyration, crystallinity, and number of edge particles, and demonstrate the expected size-dependent properties. Our findings demonstrate successful ensemble feedback control of the assembly of different sized colloidal crystals using multiple actuators, which has broad implications for control over nano- and micro- scale assembly processes involving colloidal components.
C1 [Mathai, Pramod P.; Liddle, J. Alexander] NIST, Ctr Nanoscale Sci & Technol, Gaithersburg, MD 20899 USA.
[Juarez, Jaime J.; Bevan, Michael A.] Johns Hopkins Univ, Baltimore, MD 21218 USA.
[Mathai, Pramod P.] Univ Maryland, Maryland Nanoctr, College Pk, MD 20742 USA.
RP Liddle, JA (reprint author), NIST, Ctr Nanoscale Sci & Technol, 100 Bur Dr, Gaithersburg, MD 20899 USA.
EM liddle@nist.gov; mabevan@jhu.edu
RI Liddle, James/A-4867-2013; Bevan, Michael/A-3397-2010
OI Liddle, James/0000-0002-2508-7910;
FU National Science Foundation [CMMI-0835549]; Air Force Office of
Scientific Research [FA9550-08-1-0329]; National Institute of Standards
and Technology [70NANB10H198]; University of Maryland; National
Institute of Standards and Technology Center for Nanoscale Science and
Technology [70NANB10H193]; [CBET-0932973]
FX MAB and JJJ acknowledge financial support provided by the National
Science Foundation through a Cyber Enabled Discovery and Innovation
grant (CMMI-0835549) and an unsolicited grant (CBET-0932973), the Air
Force Office of Scientific Research (FA9550-08-1-0329), and the National
Institute of Standards and Technology (70NANB10H198). PPM acknowledges
financial support provided by the cooperative research agreement between
the University of Maryland and the National Institute of Standards and
Technology Center for Nanoscale Science and Technology (70NANB10H193).
JJJ and PPM acknowledge helpful discussions with Andrew Berglund and
help with the experimental set up from Alan Band, Gerard Henein, Glenn
Holland, and Chet Knurek.
NR 49
TC 16
Z9 16
U1 3
U2 17
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1473-0197
J9 LAB CHIP
JI Lab Chip
PY 2012
VL 12
IS 20
BP 4063
EP 4070
DI 10.1039/c2lc40692f
PG 8
WC Biochemical Research Methods; Chemistry, Multidisciplinary; Nanoscience
& Nanotechnology
SC Biochemistry & Molecular Biology; Chemistry; Science & Technology -
Other Topics
GA 007NI
UT WOS:000308894600035
PM 22864637
ER
PT J
AU Wei, M
De Pondeca, MSFV
Toth, Z
Parrish, D
AF Wei, M.
De Pondeca, M. S. F. V.
Toth, Z.
Parrish, D.
TI Estimation and calibration of observation impact signals using the
Lanczos method in NOAA/NCEP data assimilation system
SO NONLINEAR PROCESSES IN GEOPHYSICS
LA English
DT Article
ID ENSEMBLE DATA ASSIMILATION; TRANSFORM KALMAN FILTER;
ANALYSIS-PERTURBATION SCHEME; THEORETICAL ASPECTS; PREDICTION SYSTEM;
FORECAST SYSTEM; ANALYSIS ERROR; NCEP; ECMWF; FORMULATION
AB Despite the tremendous progress that has been made in data assimilation (DA) methodology, observing systems that reduce observation errors, and model improvements that reduce background errors, the analyses produced by the best available DA systems are still different from the truth. Analysis error and error covariance are important since they describe the accuracy of the analyses, and are directly related to the future forecast errors, i.e., the forecast quality. In addition, analysis error covariance is critically important in building an efficient ensemble forecast system (EFS).
Estimating analysis error covariance in an ensemble-based Kalman filter DA is straightforward, but it is challenging in variational DA systems, which have been in operation at most NWP (Numerical Weather Prediction) centers. In this study, we use the Lanczos method in the NCEP (the National Centers for Environmental Prediction) Gridpoint Statistical Interpolation (GSI) DA system to look into other important aspects and properties of this method that were not exploited before. We apply this method to estimate the observation impact signals (OIS), which are directly related to the analysis error variances. It is found that the smallest eigenvalue of the transformed Hessian matrix converges to one as the number of minimization iterations increases. When more observations are assimilated, the convergence becomes slower and more eigenvectors are needed to retrieve the observation impacts. It is also found that the OIS over data-rich regions can be represented by the eigenvectors with dominant eigenvalues.
Since only a limited number of eigenvectors can be computed due to computational expense, the OIS is severely underestimated, and the analysis error variance is consequently overestimated. It is found that the mean OIS values for temperature and wind components at typical model levels are increased by about 1.5 times when the number of eigenvectors is doubled. We have proposed four different calibration schemes to compensate for the missing trailing eigenvectors. Results show that the method with calibration for a small number of eigenvectors cannot pick up the observation impacts over the regions with fewer observations as well as a benchmark with a large number of eigenvectors, but proper calibrations do enhance and improve the impact signals over regions with more data.
When compared with the observation locations, the method generally captures the OIS over regions with more observation data, including satellite data over the southern oceans. Over the tropics, some observation impacts may be missed due to the smaller background errors specified in the GSI, which is not related to the method. It is found that a large number of eigenvectors are needed to retrieve impact signals that resemble the banded structures from satellite observations, particularly over the tropics. Another benefit from the Lanczos method is that the dominant eigenvectors can be used in preconditioning the conjugate gradient algorithm in the GSI to speed up the convergence.
C1 [Wei, M.] USN, Res Lab, Stennis Space Ctr, MS 39529 USA.
[De Pondeca, M. S. F. V.; Parrish, D.] NOAA NWS NCEP EMC, Camp Springs, MD 20746 USA.
[Toth, Z.] NOAA OAR ESRL GSD, Forecast Applicat Branch, Boulder, CO USA.
RP Wei, M (reprint author), USN, Res Lab, Stennis Space Ctr, MS 39529 USA.
EM mozheng.wei@nrlssc.navy.mil
RI Toth, Zoltan/I-6624-2015
OI Toth, Zoltan/0000-0002-9635-9194
FU SEMESTER 6.2 project at NRL; Office of Naval Research [0602435N]
FX We thank John Derber and Jim Purser for their careful reviews of the
manuscript with many helpful suggestions and comments which have
improved the presentation. We are grateful to many colleagues at
NCEP/EMC for their help during this work, particularly, Wan-Shu Wu, Russ
Treadon, Xiujuan Su and Daryl Kleist for helpful discussions about GSI
system. We thank Steve Lord for his constant support and encouragement
during this work, Mary Hart for improving the presentation, and Carolyn
Reynolds and Craig Bishop at NRL for helpful discussion and sharing the
FNMOC analysis error estimates with us. M. Wei was funded through
SEMESTER 6.2 project at NRL and supported by the Office of Naval
Research (Program Element 0602435N).
NR 50
TC 3
Z9 3
U1 0
U2 4
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1023-5809
J9 NONLINEAR PROC GEOPH
JI Nonlinear Process Geophys.
PY 2012
VL 19
IS 5
BP 541
EP 557
DI 10.5194/npg-19-541-2012
PG 17
WC Geochemistry & Geophysics; Meteorology & Atmospheric Sciences
SC Geochemistry & Geophysics; Meteorology & Atmospheric Sciences
GA 029FG
UT WOS:000310479600006
ER
PT S
AU Marbukh, V
AF Marbukh, V.
BE DeTurck, F
Gaspary, LP
Medhi, D
TI Towards Modeling Effect of Packet-level TCP Dynamics on Internet
Operations and Management
SO 2012 IEEE NETWORK OPERATIONS AND MANAGEMENT SYMPOSIUM (NOMS)
SE IEEE IFIP Network Operations and Management Symposium
LA English
DT Proceedings Paper
CT 13th IEEE/IFIP Network Operations and Management Symposium
CY APR 16-20, 2012
CL Maui, HI
SP IEEE, IFIP, IEEE Commun Soc
DE packet-level TCP dynamics; flow-level Internet performance; buffer
sizing
AB This paper reports on work in progress on modeling of the effect of packet-level TCP congestion avoidance dynamics on flow-level Internet performance and management including buffer sizing under arriving/departing flows. The proposed model accounts for the packet-level TCP burstiness due to congestion avoidance dynamics by incorporating the entire effective bandwidth of TCP-controlled traffic as opposed to the conventional model which accounts for the average TCP rate only. In particular, we demonstrate that conventional Markov model of Internet performance is applicable only in a case of sufficiently heavy average load corresponding to long flow-level queues and file transfer times. In a case of lighter average load the conventional Markov performance model significantly underestimates flow-level queues and file transfer times, and surprisingly a simpler mean-field performance model may be more accurate. While increasing buffer sizes causes proportional increase in the worst-case packet-level delays, the positive effect on the average capacity utilization and flow-level performance may be muted due to increase in the TCP burstiness. These conclusions may explain and quantify observed self-similarity of TCP traffic, and have important implications for the Internet design, operations, and management.
C1 NIST, Gaithersburg, MD 20899 USA.
RP Marbukh, V (reprint author), NIST, 100 Bur Dr,Stop 8920, Gaithersburg, MD 20899 USA.
EM marbukh@nist.gov
NR 13
TC 1
Z9 1
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1542-1201
BN 978-1-4673-0268-5
J9 IEEE IFIP NETW OPER
PY 2012
BP 470
EP 473
PG 4
WC Computer Science, Information Systems; Telecommunications
SC Computer Science; Telecommunications
GA BCA90
UT WOS:000309517000058
ER
PT S
AU Marbukh, V
AF Marbukh, V.
BE DeTurck, F
Gaspary, LP
Medhi, D
TI Systemic Risks/Benefits of Selfish Network Operations & Management in
Dynamic Environment
SO 2012 IEEE NETWORK OPERATIONS AND MANAGEMENT SYMPOSIUM (NOMS)
SE IEEE IFIP Network Operations and Management Symposium
LA English
DT Proceedings Paper
CT 13th IEEE/IFIP Network Operations and Management Symposium
CY APR 16-20, 2012
CL Maui, HI
SP IEEE, IFIP, IEEE Commun Soc
DE selfish agents; information availability; systemic risk
AB Allowing selfish agents to acquire and exploit system information has both positive and negative effects on the overall performance of resource allocation systems. The positive effect results from reduction in the uncertainty inherently present in large-scale systems. The negative effect, which can be mitigated through congestion pricing, is due to agent selfishness. However, current research, concentrated around the notion of "Price of Anarchy", is mostly concerned with the negative effect. This paper evaluates systemic risks/benefits of selfish agent ability to acquire and exploit dynamic system information in a specific case of selfish routing in a large-scale, random, loss network. Our analysis indicates that the beneficial effect of this ability dominates in a case of high system uncertainty - low load, while the negative effect dominates in a case of low system uncertainty high load. In the intermediate cases while the beneficial effect still dominates in the "normal" operating mode, the negative effect manifests itself in a risk of cascading overload driving the system to an emergent metastable, i.e., persistent, congested mode. Future research should consider resource allocation models with elastic selfish users and evaluate effect of the congestion pricing.
C1 NIST, Gaithersburg, MD 20899 USA.
RP Marbukh, V (reprint author), NIST, 100 Bur Dr,Stop 8920, Gaithersburg, MD 20899 USA.
EM marbukh@nist.gov
NR 10
TC 0
Z9 0
U1 1
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1542-1201
BN 978-1-4673-0268-5
J9 IEEE IFIP NETW OPER
PY 2012
BP 683
EP 686
PG 4
WC Computer Science, Information Systems; Telecommunications
SC Computer Science; Telecommunications
GA BCA90
UT WOS:000309517000111
ER
PT S
AU Radebaugh, R
AF Radebaugh, Ray
BE Weisend, JG
Barclay, J
Breon, S
Demko, J
DiPirro, M
Kittel, P
Klebaner, A
Marquardt, J
Nellis, G
Peterson, T
Pfotenhauer, J
Rowe, A
VanSciver, S
Yuan, S
Zagarola, M
Zeller, A
TI CRYOCOOLERS FOR AIRCRAFT SUPERCONDUCTING GENERATORS AND MOTORS
SO ADVANCES IN CRYOGENIC ENGINEERING, VOLS 57A AND 57B
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT Joint Conference on Transactions of the Cryogenic Engineering Conference
(CEC)/International Cryogenic Materials Conference (ICMC)
CY JUN 13-17, 2011
CL Spokane, WA
SP ATI Wah Chang, Burkert Fluid Control Syst, Cryocomp, Cryofab, Inc, Cryomagnet, Inc, Eden Cryogen, GE Global Res, Linde, Luvata Waterbury, Inc, Meyer Tool & Mfg, Inc, PHPK Technol, RUAG Space GmbH
DE Aircraft; cryocoolers; efficiency; machines; pulse tubes; regenerators;
Stirling; superconductors; specific mass
ID DESIGN
AB The proposal by NASA to use high-temperature superconducting (HTS) generators and motors on future (similar to 2035) aircraft for turboelectric propulsion imposes difficult requirements for cryocoolers. Net refrigeration powers of about 5 kW to 10 kW at 50 K to 65 K are needed for this application. A 2010 survey by Ladner of published work between 1999 and 2009 on existing Stirling and Stirling-type pulse tube cryocoolers showed efficiencies in the range of 10 to 20% of Carnot at 50 K, much less than the 30 % of Carnot needed to make the concept feasible. A cryocooler specific mass less than about 3 kg/kW of input power is required to keep the cryocooler mass somewhat less than the mass of the superconducting machinery. Current cryocoolers have specific masses about 3 to 10 times this desired value, even for those designed for airborne or space use. We discuss loss and mass sources and make suggestions where improvements can be made. For Stirling and Stirling-type pulse tube cryocoolers, most of the mass is concentrated in the compressor. We show that higher frequency and pressure can have a major influence on reducing the compressor mass. Frequencies up to about 120 Hz and average pressures up to about 5 MPa may significantly reduce the overall cryocooler size and mass while maintaining high efficiency. Other suggestions for reducing the mass are also given.
C1 Natl Inst Stand & Technol, Boulder, CO 80305 USA.
RP Radebaugh, R (reprint author), Natl Inst Stand & Technol, Boulder, CO 80305 USA.
NR 22
TC 2
Z9 2
U1 1
U2 5
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-1020-6
J9 AIP CONF PROC
PY 2012
VL 1434
BP 171
EP 182
DI 10.1063/1.4706918
PG 12
WC Physics, Applied
SC Physics
GA BBH76
UT WOS:000306860600018
ER
PT S
AU Bradley, PE
Radebaugh, R
Lewis, RJ
Lin, MH
Lee, YC
AF Bradley, P. E.
Radebaugh, R.
Lewis, R. J.
Lin, M. -H.
Lee, Y. C.
BE Weisend, JG
Barclay, J
Breon, S
Demko, J
DiPirro, M
Kittel, P
Klebaner, A
Marquardt, J
Nellis, G
Peterson, T
Pfotenhauer, J
Rowe, A
VanSciver, S
Yuan, S
Zagarola, M
Zeller, A
TI TEMPERATURE INSTABILITY COMPARISON OF MICRO- AND MESO-SCALE
JOULE-THOMSON CRYOCOOLERS EMPLOYING MIXED REFRIGERANTS
SO ADVANCES IN CRYOGENIC ENGINEERING, VOLS 57A AND 57B
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT Joint Conference on Transactions of the Cryogenic Engineering Conference
(CEC)/International Cryogenic Materials Conference (ICMC)
CY JUN 13-17, 2011
CL Spokane, WA
SP ATI Wah Chang, Burkert Fluid Control Syst, Cryocomp, Cryofab, Inc, Cryomagnet, Inc, Eden Cryogen, GE Global Res, Linde, Luvata Waterbury, Inc, Meyer Tool & Mfg, Inc, PHPK Technol, RUAG Space GmbH
DE Cryocooler; Joule-Thomson; microcryocooler; micro-JT; mixed refrigerants
AB Previously we demonstrated cryogenic cooling in a Joule-Thomson (JT) microcryocooler (MCC) with mixed refrigerants operating at pressure ratios of 16: 1 that achieved stable temperatures of 140 K, with transient temperatures down to 76 K, with precooling of the refrigerant to 240 K. Pre-cooling improves the minimum enthalpy difference, (Delta h(T)) min compared with that of pure fluids. Micro-scale compressors have been unavailable to meet 16: 1 ratios. By reducing the ratio to 4: 1, mini-compressors become viable in the near term. Utilizing mixed refrigerants optimized for 4: 1 pressure ratios we compare the performance stability of this micro-JT employing a 25 mm long multichannel glass fiber heat exchanger (outer low-pressure capillary ID/OD=536 mu m/617 mu m, inner high-pressure channels ID/OD=75 mu m/125 mu m) with a scaled up (meso-scopic) version employing a 20 cm long single channel stainless steel heat exchanger (outer low pressure channel ID/OD=580 mu m/760 mu m, inner high pressure channel ID/OD=150 mu m/266 mu m). This easy to fabricate and modify meso-scale version was fabricated to investigate the temperature instabilities of mixed refrigerants for similar operating conditions but for proportionally higher flows of similar to 30 cm(3)/min compared with similar to 10 cm(3)/min. We compare measured pressures, flow rates, temperatures, and stabilities for both micro-and meso-JT cryocoolers to better understand the causes for the temperature instabilities within the micro-JT cryocooler.
C1 [Bradley, P. E.; Radebaugh, R.] NIST, Boulder, CO 80305 USA.
[Lewis, R. J.; Lin, M. -H.; Lee, Y. C.] Univ Colorado, Boulder, CO 80302 USA.
RP Bradley, PE (reprint author), NIST, Boulder, CO 80305 USA.
FU DARPA Micro Cryogenic Cooler Program
FX We gratefully acknowledge support of this work by the DARPA Micro
Cryogenic Cooler Program.
NR 15
TC 2
Z9 2
U1 0
U2 1
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-1020-6
J9 AIP CONF PROC
PY 2012
VL 1434
BP 690
EP 697
DI 10.1063/1.4706980
PG 8
WC Physics, Applied
SC Physics
GA BBH76
UT WOS:000306860600080
ER
PT S
AU Lewis, MA
Bradley, PE
Radebaugh, R
AF Lewis, M. A.
Bradley, P. E.
Radebaugh, R.
BE Weisend, JG
Barclay, J
Breon, S
Demko, J
DiPirro, M
Kittel, P
Klebaner, A
Marquardt, J
Nellis, G
Peterson, T
Pfotenhauer, J
Rowe, A
VanSciver, S
Yuan, S
Zagarola, M
Zeller, A
TI EXPERIMENTS WITH LINEAR COMPRESSORS FOR PHASE SHIFTING IN PULSE TUBE
CRYCOOLERS
SO ADVANCES IN CRYOGENIC ENGINEERING, VOLS 57A AND 57B
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT Joint Conference on Transactions of the Cryogenic Engineering Conference
(CEC)/International Cryogenic Materials Conference (ICMC)
CY JUN 13-17, 2011
CL Spokane, WA
SP ATI Wah Chang, Burkert Fluid Control Syst, Cryocomp, Cryofab, Inc, Cryomagnet, Inc, Eden Cryogen, GE Global Res, Linde, Luvata Waterbury, Inc, Meyer Tool & Mfg, Inc, PHPK Technol, RUAG Space GmbH
DE Cryocooler; expander; mechanical phase shifter; phase angle; secondary
pulse tube; and secondary regenerator
AB For the past year NIST has been investigating the use of mechanical phase shifters as warm expanders for pulse tube cryocoolers. Unlike inertance tubes, which have a limited phase shifting ability at low acoustic powers, mechanical phase shifters have the ability to provide nearly any phase angle between the mass flow and the pressure. We discuss our results with experiments and modeling on a commercially available miniature linear compressor operating as an expander on the warm-end of a 4 K pulse tube, whose temperature is nominally about 35 K. We also present results on experiments with a linear compressor operating at room temperature but coupled to the 4 K stage through secondary regenerators and secondary pulse tubes. Experiments on a small pulse tube test apparatus with both He-4 and He-3 showed improved efficiency when using the mechanical expander over that of inertance tubes. Phase locking techniques using function generators and power amplifiers for control of phase angle are detailed. The use of expanders demonstrates flexible control in optimizing phase angles for improved cryocooler performance.
C1 [Lewis, M. A.; Bradley, P. E.; Radebaugh, R.] Natl Inst Stand & Technol, Boulder, CO 80305 USA.
RP Lewis, MA (reprint author), Natl Inst Stand & Technol, Boulder, CO 80305 USA.
NR 9
TC 2
Z9 2
U1 0
U2 2
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-1020-6
J9 AIP CONF PROC
PY 2012
VL 1434
BP 1600
EP 1607
DI 10.1063/1.4707091
PG 8
WC Physics, Applied
SC Physics
GA BBH76
UT WOS:000306860600191
ER
PT J
AU Casner, SM
Murphy, MP
Neville, EC
Neville, MR
AF Casner, Stephen M.
Murphy, Michael Pat
Neville, Erin C.
Neville, Matthew R.
TI Pilots as Weather Briefers: The Direct Use of Aviation Weather Products
by General Aviation Pilots
SO INTERNATIONAL JOURNAL OF AVIATION PSYCHOLOGY
LA English
DT Article
AB When planning a flight, pilots have traditionally consulted with trained weather briefers who gather, select, review, and to some extent interpret aviation weather products for them. Today, pilots can directly access these same weather products from their own computers, aircraft cockpits, and mobile devices, and choose to skip the services offered by weather briefers. A sample of 191 general aviation pilots completed a survey designed to determine how frequently they directly access weather products, how frequently they still consult with weather briefers, and which weather products pilots use and why. We identified a subset of surveyed pilots who usually or always rely solely on directly accessed weather products (approximately 25%). Although these self-briefing pilots trend toward holding higher grades of pilot certificates and make greater use of cockpit weather systems, they do not differ from other pilots in the weather products they review, and they prefer simple weather observations to more complex forecasts and descriptions of larger weather systems such as fronts and pressure regions. We explore the reasons why self-briefing pilots choose to review the products they do, and how the next generation of pilots might best be trained and supported.
C1 [Casner, Stephen M.] NASA, Ames Res Ctr, Moffett Field, CA 94035 USA.
[Murphy, Michael Pat] NOAA NWS Aviat Weather Ctr, Kansas City, MO USA.
[Neville, Erin C.; Neville, Matthew R.] San Jose State Univ, Res Fdn, San Jose, CA 95192 USA.
RP Casner, SM (reprint author), NASA, Ames Res Ctr, Mail Stop 262-4, Moffett Field, CA 94035 USA.
EM Stephen.Casner@nasa.gov
NR 15
TC 0
Z9 0
U1 1
U2 1
PU TAYLOR & FRANCIS INC
PI PHILADELPHIA
PA 325 CHESTNUT ST, SUITE 800, PHILADELPHIA, PA 19106 USA
SN 1050-8414
J9 INT J AVIAT PSYCHOL
JI Int. J. Aviat. Psychol.
PY 2012
VL 22
IS 4
BP 367
EP 381
DI 10.1080/10508414.2012.718241
PG 15
WC Psychology, Applied
SC Psychology
GA 026UZ
UT WOS:000310309900004
ER
PT J
AU Zhang, K
O'Donnell, D
Kazil, J
Stier, P
Kinne, S
Lohmann, U
Ferrachat, S
Croft, B
Quaas, J
Wan, H
Rast, S
Feichter, J
AF Zhang, K.
O'Donnell, D.
Kazil, J.
Stier, P.
Kinne, S.
Lohmann, U.
Ferrachat, S.
Croft, B.
Quaas, J.
Wan, H.
Rast, S.
Feichter, J.
TI The global aerosol-climate model ECHAM-HAM, version 2: sensitivity to
improvements in process representations
SO ATMOSPHERIC CHEMISTRY AND PHYSICS
LA English
DT Article
ID GENERAL-CIRCULATION MODEL; TROPOSPHERIC SULFUR CYCLE; DRY DEPOSITION
PARAMETERIZATION; SECONDARY ORGANIC AEROSOLS; STRATOSPHERIC CONDITIONS;
MICROPHYSICS MODULE; CLOUD MICROPHYSICS; OPTICAL-PROPERTIES; SIZE
DISTRIBUTION; ATMOSPHERE MODEL
AB This paper introduces and evaluates the second version of the global aerosol-climate model ECHAM-HAM. Major changes have been brought into the model, including new parameterizations for aerosol nucleation and water uptake, an explicit treatment of secondary organic aerosols, modified emission calculations for sea salt and mineral dust, the coupling of aerosol microphysics to a two-moment stratiform cloud microphysics scheme, and alternative wet scavenging parameterizations. These revisions extend the model's capability to represent details of the aerosol lifecycle and its interaction with climate. Nudged simulations of the year 2000 are carried out to compare the aerosol properties and global distribution in HAM1 and HAM2, and to evaluate them against various observations. Sensitivity experiments are performed to help identify the impact of each individual update in model formulation.
Results indicate that from HAM1 to HAM2 there is a marked weakening of aerosol water uptake in the lower troposphere, reducing the total aerosol water burden from 75 Tg to 51 Tg. The main reason is the newly introduced kappa-Kohlertheory-based water uptake scheme uses a lower value for the maximum relative humidity cutoff. Particulate organic matter loading in HAM2 is considerably higher in the upper troposphere, because the explicit treatment of secondary organic aerosols allows highly volatile oxidation products of the precursors to be vertically transported to regions of very low temperature and to form aerosols there. Sulfate, black carbon, particulate organic matter and mineral dust in HAM2 have longer lifetimes than in HAM1 because of weaker incloud scavenging, which is in turn related to lower autoconversion efficiency in the newly introduced two-moment cloud microphysics scheme. Modification in the sea salt emission scheme causes a significant increase in the ratio (from 1.6 to 7.7) between accumulation mode and coarse mode emission fluxes of aerosol number concentration. This leads to a general increase in the number concentration of smaller particles over the oceans in HAM2, as reflected by the higher Angstrom parameters.
Evaluation against observation reveals that in terms of model performance, main improvements in HAM2 include a marked decrease of the systematic negative bias in the absorption aerosol optical depth, as well as smaller biases over the oceans in Angstrom parameter and in the accumulation mode number concentration. The simulated geographical distribution of aerosol optical depth (AOD) is better correlated with the MODIS data, while the surface aerosol mass concentrations are very similar to those in the old version. The total aerosol water content in HAM2 is considerably closer to the multi-model average from Phase I of the AeroCom intercomparison project. Model deficiencies that require further efforts in the future include (i) positive biases in AOD over the ocean, (ii) negative biases in AOD and aerosol mass concentration in high-latitude regions, and (iii) negative biases in particle number concentration, especially that of the Aitken mode, in the lower troposphere in heavily polluted regions.
C1 [Zhang, K.; O'Donnell, D.; Kinne, S.; Quaas, J.; Rast, S.; Feichter, J.] Max Planck Inst Meteorol, Hamburg, Germany.
[Kazil, J.] Univ Colorado, CIRES, Boulder, CO 80309 USA.
[Stier, P.] Univ Oxford, Oxford, England.
[Lohmann, U.; Ferrachat, S.] ETH, Inst Atmospher & Climate Sci, Zurich, Switzerland.
[Croft, B.] Dalhousie Univ, Dept Phys & Atmospher Sci, Halifax, NS, Canada.
[Zhang, K.; Wan, H.] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Kazil, J.] NOAA Earth Syst Res Lab ESRL, Boulder, CO USA.
RP Zhang, K (reprint author), Max Planck Inst Meteorol, Hamburg, Germany.
EM kai.zhang@pnnl.gov
RI Kazil, Jan/B-7652-2013; Wan, Hui/J-4701-2013; Zhang, Kai/F-8415-2010;
Quaas, Johannes/I-2656-2013; Lohmann, Ulrike/B-6153-2009; Stier,
Philip/B-2258-2008; Manager, CSD Publications/B-2789-2015
OI Kazil, Jan/0000-0003-3271-2451; Zhang, Kai/0000-0003-0457-6368; Quaas,
Johannes/0000-0001-7057-194X; Lohmann, Ulrike/0000-0001-8885-3785;
Stier, Philip/0000-0002-1191-0128;
FU project EUCAARI [34684]; Linus Pauling Distinguished Postdoctoral
Fellowship
FX The authors thank U. Niemeier (MPI-M) for her comments on an earlier
version of the manuscript, and M. Esch for her support in coupling HAM
with the ECHAM model. KZ appreciates very helpful discussions with X.
Liu and S. Burrows (PNNL). Comments and suggestions from the two
anonymous reviewers significantly helped to improve the manuscript. We
acknowledge the NASA Langley Research Center, the NCAR Earth Observing
Laboratory, and the British Atmospheric Data Centre for providing the
aircraft measurements used in this study. The principal investigators of
these measurement campaigns provided very helpful suggestions on how to
compare the data with model results. We also thank the AERONET Principal
Investigators and the AeroCom project for compiling and providing the
aerosol optical depth, Angstrom parameter, and the surface aerosol mass
concentration data used in the model evaluation. Simulations were
performed at the German Climate Computing Center (Deutsches
Klimarechenzentrum GmbH, DKRZ) in Hamburg, Germany. J. Kazil, D.
O'Donnell, and K. Zhang gratefully acknowledge the support by the FP6
project EUCAARI (Contract 34684). Work done by KZ at PNNL also benefited
from the SciDAC Project "Applying Computationally Efficient Schemes for
BioGeochemical Cycles" of US Dept. of Energy. HW is grateful for the
support of the Linus Pauling Distinguished Postdoctoral Fellowship. Her
contribution to this paper was made under the Laboratory Directed
Research and Development Program at PNNL.
NR 133
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U2 55
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1680-7316
EI 1680-7324
J9 ATMOS CHEM PHYS
JI Atmos. Chem. Phys.
PY 2012
VL 12
IS 19
BP 8911
EP 8949
DI 10.5194/acp-12-8911-2012
PG 39
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 020TF
UT WOS:000309836800001
ER
PT J
AU Bousquet, P
Ringeval, B
Pison, I
Dlugokencky, EJ
Brunke, EG
Carouge, C
Chevallier, F
Fortems-Cheiney, A
Frankenberg, C
Hauglustaine, DA
Krummel, PB
Langenfelds, RL
Ramonet, M
Schmidt, M
Steele, LP
Szopa, S
Yver, C
Viovy, N
Ciais, P
AF Bousquet, P.
Ringeval, B.
Pison, I.
Dlugokencky, E. J.
Brunke, E. -G.
Carouge, C.
Chevallier, F.
Fortems-Cheiney, A.
Frankenberg, C.
Hauglustaine, D. A.
Krummel, P. B.
Langenfelds, R. L.
Ramonet, M.
Schmidt, M.
Steele, L. P.
Szopa, S.
Yver, C.
Viovy, N.
Ciais, P.
TI Source attribution of the changes in atmospheric methane for 2006-2008
(vol 11, pg 3689, 2011)
SO ATMOSPHERIC CHEMISTRY AND PHYSICS
LA English
DT Correction
ID HYDROXYL; VARIABILITY
C1 [Bousquet, P.; Ringeval, B.; Pison, I.; Carouge, C.; Chevallier, F.; Fortems-Cheiney, A.; Hauglustaine, D. A.; Ramonet, M.; Schmidt, M.; Steele, L. P.; Szopa, S.; Yver, C.; Viovy, N.; Ciais, P.] CEA CNRS UVSQ, Lab Sci Climat & Environm, IPSL LSCE, UMR8212, F-91191 Gif Sur Yvette, France.
[Bousquet, P.] Univ Versailles St Quentin Yvelines, Versailles, France.
[Dlugokencky, E. J.] NOAA Earth Syst Res Lab, Global Monitoring Div, Boulder, CO USA.
[Brunke, E. -G.] S African Weather Serv, Stellenbosch, South Africa.
[Frankenberg, C.; Langenfelds, R. L.] CALTECH, Jet Prop Lab, Pasadena, CA USA.
[Krummel, P. B.] Ctr Australian Weather & Climate Res CSIRO Marine, Melbourne, Vic, Australia.
RP Bousquet, P (reprint author), CEA CNRS UVSQ, Lab Sci Climat & Environm, IPSL LSCE, UMR8212, F-91191 Gif Sur Yvette, France.
EM philippe.bousquet@lsce.ipsl.fr
RI Krummel, Paul/A-4293-2013; Steele, Paul/B-3185-2009; Frankenberg,
Christian/A-2944-2013; Langenfelds, Raymond/B-5381-2012
OI Krummel, Paul/0000-0002-4884-3678; Steele, Paul/0000-0002-8234-3730;
Frankenberg, Christian/0000-0002-0546-5857;
NR 6
TC 0
Z9 0
U1 3
U2 26
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1680-7316
J9 ATMOS CHEM PHYS
JI Atmos. Chem. Phys.
PY 2012
VL 12
IS 19
BP 9381
EP 9382
DI 10.5194/acp-12-9381-2012
PG 2
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 020TF
UT WOS:000309836800026
ER
PT J
AU Yashar, DA
Wojtusiak, J
Kaufman, K
Domanski, PA
AF Yashar, David A.
Wojtusiak, Janusz
Kaufman, Kenneth
Domanski, Piotr A.
TI A dual-mode evolutionary algorithm for designing optimized refrigerant
circuitries for finned-tube heat exchangers
SO HVAC&R RESEARCH
LA English
DT Article
ID PERFORMANCE; CONDENSERS; SYSTEM
AB Heat exchanger performance is strongly influenced by the refrigerant circuitry, i.e., the connection sequence of the tubes. This article describes an evolutionary computation-based approach for designing an optimized refrigerant circuitry used in an intelligent system for heat exchanger design. The technique used in this design employs two methods to generate designs implemented separately in two modules: the knowledge-based evolutionary computation module and the symbolic-learning-based evolutionary computation module. The optimization example presented in this article employed each module independently and used the combined approach to demonstrate the performance of each module and the power of the combined module approach. The best circuitry designs determined through these optimization runs yielded substantial capacity improvements over the original design; the symbolic-learning-and knowledge-based modules returned circuitry designs that improved the heat exchanger capacity by 2.6% and 4.8%, respectively, while the combined module approach resulted in a circuitry design that improved the capacity by 6.5%.
C1 [Yashar, David A.; Domanski, Piotr A.] NIST, HVAC&R Equipment Performance Grp, BFRL, Gaithersburg, MD 20899 USA.
[Wojtusiak, Janusz] George Mason Univ, Dept Hlth Adm & Policy, Fairfax, VA 22030 USA.
[Wojtusiak, Janusz] George Mason Univ, Machine Learning & Inference Lab, Fairfax, VA 22030 USA.
[Kaufman, Kenneth] Internal Revenue Serv, Res Off, Washington, DC USA.
RP Yashar, DA (reprint author), NIST, HVAC&R Equipment Performance Grp, BFRL, 100 Bur Dr,Mailstop 8631, Gaithersburg, MD 20899 USA.
EM dyashar@nist.gov
NR 22
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Z9 4
U1 0
U2 3
PU TAYLOR & FRANCIS INC
PI PHILADELPHIA
PA 325 CHESTNUT ST, SUITE 800, PHILADELPHIA, PA 19106 USA
SN 1078-9669
J9 HVAC&R RES
JI HVAC&R Res.
PY 2012
VL 18
IS 5
SI SI
BP 834
EP 844
DI 10.1080/10789669.2011.604699
PG 11
WC Thermodynamics; Construction & Building Technology; Engineering,
Mechanical
SC Thermodynamics; Construction & Building Technology; Engineering
GA 019OM
UT WOS:000309749200002
ER
PT J
AU Reum, JCP
Hunsicker, ME
AF Reum, Jonathan C. P.
Hunsicker, Mary E.
TI Season and prey type influence size dependency of predator-prey body
mass ratios in a marine fish assemblage
SO MARINE ECOLOGY PROGRESS SERIES
LA English
DT Article
DE Body mass; Demersal fish; Feeding interactions; Food web; Puget Sound;
Size spectra; Trophic level
ID FOOD-WEB; EFFICIENCY; COMMUNITY; STABILITY; SPECTRA; CHAINS
AB Marine and freshwater food webs are strongly structured by size-dependent predator-prey interactions. Predator-prey body mass ratios (PPMR) are important parameters in size-based food-web models, but studies evaluating the temporal stability of PPMR or its relationship to predator feeding modes are scant. Using a large data set of predator-prey pairs from a diverse fish community sampled in summer, fall, and winter, we showed that community-level PPMR varied with predator mass in a nonlinear (dome-shaped) manner. PPMR was higher in the summer relative to the fall and winter for all predator body size classes regardless of whether prey were fish or invertebrate. Further, the size dependency of PPMR was dome-shaped for invertebrate prey but positive and linear for fish prey. We empirically show that community-level PPMR is dynamic rather than fixed, which is in agreement with general expectations set by simulation studies of biomass spectra. However, we are presently unable to identify the specific processes underlying these patterns. Size-based models of marine ecosystems offer considerable promise over traditional taxa-based approaches, and our analyses provide insight into major patterns of variation in PPMR in a temperate marine system.
C1 [Reum, Jonathan C. P.] Univ Washington, Sch Aquat & Fishery Sci, Seattle, WA 98195 USA.
[Hunsicker, Mary E.] Oregon State Univ, Coll Earth Ocean & Atmospher Sci, Corvallis, OR 97331 USA.
RP Reum, JCP (reprint author), NOAA, Natl Marine Fisheries Serv, NW Fisheries Sci Ctr, Conservat Biol Div, 2725 Montlake Blvd E, Seattle, WA 98112 USA.
EM jonathan.reum@noaa.gov
FU Vincent Liguori Fellowship; University of Washington Climate Impacts
Group; University of Washington Research Royalties Fund
FX Funding for J.C.P.R. was provided by the Vincent Liguori Fellowship and
the University of Washington Climate Impacts Group. Boat time was
financed by a University of Washington Research Royalties Fund awarded
to T. Essington. T. Essington and D. Schindler provided input and
conversations that led to the development of this manuscript. M.
Hartvig, B. Rall, and 2 anonymous reviewers provided helpful comments on
earlier versions of the manuscript.
NR 34
TC 4
Z9 4
U1 2
U2 15
PU INTER-RESEARCH
PI OLDENDORF LUHE
PA NORDBUNTE 23, D-21385 OLDENDORF LUHE, GERMANY
SN 0171-8630
EI 1616-1599
J9 MAR ECOL PROG SER
JI Mar. Ecol.-Prog. Ser.
PY 2012
VL 466
BP 167
EP 175
DI 10.3354/meps09913
PG 9
WC Ecology; Marine & Freshwater Biology; Oceanography
SC Environmental Sciences & Ecology; Marine & Freshwater Biology;
Oceanography
GA 020TS
UT WOS:000309838100014
ER
PT J
AU Laurel, BJ
Ryer, CH
Spencer, M
Iseri, P
Knoth, B
Stoner, A
AF Laurel, Benjamin J.
Ryer, Clifford H.
Spencer, Mara
Iseri, Paul
Knoth, Brian
Stoner, Allan
TI Effects of natural and anthropogenic disturbance on polychaete worm
tubes and age-0 flatfish distribution
SO MARINE ECOLOGY PROGRESS SERIES
LA English
DT Article
DE Coastal habitats; Benthic recovery; Patchiness; Habitat heterogeneity;
Northern rock sole
ID NORTHERN ROCK SOLE; COD GADUS-MORHUA; SEA-FLOOR HABITAT;
LANICE-CONCHILEGA; PREDATION RISK; LEPIDOPSETTA-POLYXYSTRA; JUVENILE
FLATFISHES; CONTINENTAL-SHELF; NURSERY GROUNDS; RECRUITMENT
AB Tubes of the ampharetid polychaete Sabellides sibirica are a prominent yet spatially variable habitat feature in shallow-water flatfish nurseries around Kodiak, Alaska, USA. Juvenile flatfish associate with the edges of worm tube regions but seldom use the dense 'turf-like' worm beds that sometimes form on the bottom in the late summer. The present study used a fine-scale analysis (2 to 3 m) to examine how juvenile flatfish distribution changed with worm tube heterogeneity, i.e. density and patchiness. Using a video sled, 8 transect lines (similar to 250 m each) were repeatedly surveyed from late summer to mid-winter in a worm tube region of Pillar Creek Cove, half of which were experimentally disturbed using simulated trawl gear. Results indicated that juvenile flatfish (mainly northern rock sole Lepidopsetta polyxystra) increasingly use patches of bare substrate as worm tube densities increase. However, the simulated trawl disturbance resulted in a unique kind of patchiness, typified by long, thin exposed regions of bare substrate referred to as 'combing'. Unlike natural patches, evidence of combing disappeared 2.5 mo after the initial disturbance, whereas natural patches persisted throughout the entire study. Flatfish abundance increased in trawl-disturbed worm tube beds for only a short period (2 d), possibly due to episodic foraging opportunities rather than physical changes in habitat. These results indicate that worm tube habitat is provisionally resilient to disturbance, and its heterogeneity (density, patchiness, and patch type) is an important component of habitat quality for juvenile flatfish in Alaska.
C1 [Laurel, Benjamin J.; Ryer, Clifford H.; Spencer, Mara; Iseri, Paul; Stoner, Allan] NOAA, Fisheries Behav Ecol Program, Alaska Fisheries Sci Ctr, Natl Marine Fisheries Serv,Hatfield Marine Sci Ct, Newport, OR 97365 USA.
[Knoth, Brian] NOAA, Kodiak Fisheries Res Ctr, Alaska Fisheries Sci Ctr, Natl Marine Fisheries Serv, Kodiak, AK 99615 USA.
RP Laurel, BJ (reprint author), NOAA, Fisheries Behav Ecol Program, Alaska Fisheries Sci Ctr, Natl Marine Fisheries Serv,Hatfield Marine Sci Ct, Newport, OR 97365 USA.
EM ben.laurel@noaa.gov
FU North Pacific Research Board grant [R0710]
FX This project was supported by North Pacific Research Board grant #
R0710. We thank R. Gregory for reviewing earlier drafts of this
manuscript. Thanks also to S. Haines, E. Munk and S. Jewett for
providing assistance in the field. Boat charters were provided by Tim
Tripp aboard the FV 'Miss O'. This manuscript is NPRB publication #367.
NR 44
TC 2
Z9 2
U1 2
U2 11
PU INTER-RESEARCH
PI OLDENDORF LUHE
PA NORDBUNTE 23, D-21385 OLDENDORF LUHE, GERMANY
SN 0171-8630
J9 MAR ECOL PROG SER
JI Mar. Ecol.-Prog. Ser.
PY 2012
VL 466
BP 193
EP 203
DI 10.3354/meps09931
PG 11
WC Ecology; Marine & Freshwater Biology; Oceanography
SC Environmental Sciences & Ecology; Marine & Freshwater Biology;
Oceanography
GA 020TS
UT WOS:000309838100016
ER
PT J
AU Testa, JW
Mock, KJ
Taylor, C
Koyuk, H
Coyle, JR
Waggoner, R
AF Testa, J. Ward
Mock, Kenrick J.
Taylor, Cameron
Koyuk, Heather
Coyle, Jessica R.
Waggoner, Russell
TI Agent-based modeling of the dynamics of mammal-eating killer whales and
their prey
SO MARINE ECOLOGY PROGRESS SERIES
LA English
DT Article
DE ABM; Individual-based models; IBM; Orcinus orca; Population dynamics;
Predator-prey
ID SEQUENTIAL MEGAFAUNAL COLLAPSE; NORTH PACIFIC; POPULATION-DYNAMICS;
MARINE MAMMALS; ORCINUS-ORCA; HYPOTHESIS; PREDATION; ALASKA;
REQUIREMENTS; ABUNDANCE
AB The role of mammal-eating, or transient, killer whales Orcinus orca in the decline of various marine mammal populations in Alaska is controversial and potentially important in their recovery. Classical predator-prey models are insufficient to describe the dynamics of a single predator on the number of prey types known for these predators, and there are few population-level data that could be used to parameterize such models. As an heuristic framework for this more complicated system, we developed an agent-based model of killer whales with plausible energetics and behavior. We calibrated and validated the model using single-prey scenarios (a community of generic 'Seals') against published expectations for prey consumption rates, killer whale group dynamics, and demography. We then explored the emergent properties of single-prey models and of 3-prey models using the 'Seals' as primary prey, a generic small population of 'Sea Lions', and seasonally available large 'Whales'. The single-prey model gave results that were intuitively reasonable and responsive to underlying parameters but were also sensitive to encounter/killing rates, as expected in classic predator-prey models with similar parameters. However, the dynamics included long time lags (similar to 30 yr) with strong shifts in predator age structure and vital rates. In multi-prey scenarios in which the importance of seasonally available large whale prey was manipulated, large whale prey had the potential to augment killer whale numbers somewhat but had a minimal effect on the overall dynamics, whereas perturbing the carrying capacity of the primary prey created strong numeric shifts in killer whale population size and consequent indirect effects on both alternate prey. No predictive utility is suggested due to the absence of such elements as spatial realism, explicit prey-switching and more realistic prey structure, but the models suggest that we consider more complicated numerical dynamics of killer whales in discussions of their impact on prey.
C1 [Testa, J. Ward] NOAA, Natl Marine Mammal Lab, Alaska Fisheries Sci Ctr, Natl Marine Fisheries Serv, Seattle, WA 98115 USA.
[Testa, J. Ward] Univ Alaska Anchorage, Dept Biol Sci, Anchorage, AK 99508 USA.
[Mock, Kenrick J.; Taylor, Cameron; Koyuk, Heather; Coyle, Jessica R.; Waggoner, Russell] Univ Alaska Anchorage, Dept Math Sci, Anchorage, AK 99508 USA.
RP Testa, JW (reprint author), NOAA, Natl Marine Mammal Lab, Alaska Fisheries Sci Ctr, Natl Marine Fisheries Serv, Seattle, WA 98115 USA.
EM ward.testa@noaa.gov
FU Marine Mammal Commission; National Marine Mammal Laboratory; University
of Alaska Anchorage
FX We thank C. Matkin, L. Barrett-Lennard, P. Wade, J. Durban, M. Dahlheim,
J. Burns, D. Spalinger, and D. Siniff for helpful conversations during
the creation of the model and absolve them of any responsibility for its
shortcomings. We are grateful to L. Fritz, D. DeMaster, R. Williams, and
an anonymous reviewer for helpful comments on the manuscript. We also
thank the Marine Mammal Commission (www.mmc.gov) for funding student
support for this project, the National Marine Mammal Laboratory for
support to J.W.T., and University of Alaska Anchorage for support to
K.J.M.
NR 40
TC 3
Z9 3
U1 10
U2 64
PU INTER-RESEARCH
PI OLDENDORF LUHE
PA NORDBUNTE 23, D-21385 OLDENDORF LUHE, GERMANY
SN 0171-8630
EI 1616-1599
J9 MAR ECOL PROG SER
JI Mar. Ecol.-Prog. Ser.
PY 2012
VL 466
BP 275
EP 291
DI 10.3354/meps09845
PG 17
WC Ecology; Marine & Freshwater Biology; Oceanography
SC Environmental Sciences & Ecology; Marine & Freshwater Biology;
Oceanography
GA 020TS
UT WOS:000309838100023
ER
PT S
AU Ostrovsky, L
Lebedev, A
AF Ostrovsky, Lev
Lebedev, Andrey
BE Kamakura, T
Sugimoto, N
TI Modeling of Processes in Structurally Nonlinear Media with Relaxation
SO NONLINEAR ACOUSTICS: STATE-OF-THE-ART AND PERSPECTIVES (ISNA 19)
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 19th International Symposium on Nonlinear Acoustics (ISNA)
CY MAY 21-24, 2012
CL Waseda Univ, Tokyo, JAPAN
SP Acoust Soc Japan, Acoust Soc Amer, Int Union Pure & Appl Phys, Nonlinear Acoust Soc Japan
HO Waseda Univ
DE Relaxation; slow time; Arrhenius law; Rayleigh waves
ID SLOW DYNAMICS
AB A mechanism of nonlinear acoustic relaxation in structured media (slow time) is suggested which is based on the inter-grain contacts and the Arrhenius law for the potential barrier energy. This model results in a logarithmic relaxation law for sound velocity and the frequency of nonlinear resonance in samples of different materials. Estimates of a characteristic volume of interacting contacts give close numbers for the variety of consolidated materials, and, as expected, larger values for non-consolidated media and shear deformations. For weak (linear) waves and oscillations, the log relaxation occurs if, along the thermodynamic effects, a classical quadratic nonlinearity is also present.
C1 [Ostrovsky, Lev] NOAA, Zel Technol, ESRL, 325 Broadway, Boulder, CO 80305 USA.
[Lebedev, Andrey] Russian Acad Sci, Inst Appl Phys, Nizhnii Novgorod 603600, Russia.
RP Ostrovsky, L (reprint author), NOAA, Zel Technol, ESRL, 325 Broadway, Boulder, CO 80305 USA.
OI Ostrovsky, Lev/0000-0003-2233-1305
NR 6
TC 2
Z9 2
U1 0
U2 0
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-1082-4
J9 AIP CONF PROC
PY 2012
VL 1474
BP 200
EP 203
DI 10.1063/1.4749330
PG 4
WC Acoustics; Mathematics, Applied
SC Acoustics; Mathematics
GA BCB03
UT WOS:000309528700039
ER
PT S
AU Lawson, RA
Graham, D
Stalin, S
Meinig, C
Tagawa, D
Lawrence-Slavas, N
Hibbins, R
Ingham, B
AF Lawson, R. A.
Graham, D.
Stalin, S.
Meinig, C.
Tagawa, D.
Lawrence-Slavas, N.
Hibbins, R.
Ingham, B.
GP IEEE
TI Next Generation Easy-to-Deploy (ETD) Tsunami Assessment Buoy
SO OCEANS, 2012 - YEOSU
SE OCEANS-IEEE
LA English
DT Proceedings Paper
CT OCEANS MTS/IEEE Conference
CY MAY 21-24, 2012
CL Yeosu, SOUTH KOREA
SP Marine Technol Soc, IEEE, IEEE Ocean Engn Soc, Korean Assoc Ocean Sci & Technol Soc (KAOSTS)
AB This paper addresses the operational capability of the first commercially available next-generation Easy-to-Deploy (ETD) Deep-ocean Assessment and Recording of Tsunamis (DART (R)) tsunami assessment system. Building upon their success with their DART (R) buoy systems, the National Oceanic and Atmospheric Administration Pacific Marine Environmental Laboratory (PMEL) spent over five years of research and development designing the next-generation of tsunami assessment buoys. The ETD DART (R) systems have advantages over traditional buoy systems in the right oceanographic conditions. The ETD DART (R) system consists of a modular, self-deploying and fully integrated surface buoy subsystem, bottom pressure recorder (BPR) subsystem, mooring subsystem, and an anchor subsystem. Through licensing agreements, Science Applications International Corporation (SAIC) began producing the first commercial ETD DART (R) systems in early 2010. Since that time, SAIC ETD DARTs (R) systems have been successfully deployed in the Coral Sea on August 27, 2010, the Tasman Sea on April 8, 2011, and in the Indian Ocean on February 12, 2012. Two additional systems are expected to be deployed in 2012, one near the Kuril Islands and one in the eastern Bay of Bengal. The ETD DARTs (R) performance has been exceptional at all three locations despite challenging environmental conditions. Operating continuously for over 18 months, the Coral Sea system has weathered the impact of a category five cyclone and subsequently detected several tsunami events including the globally observed Honshu tsunami. The Tasman Sea ETD DART (R) system has also performed well in some of the most challenging high wind and heavy sea conditions known to occur in the world's oceans. By design, the ETD DART (R) offers significant cost advantages over standard tsunami assessment systems. The ETD DART (R) is designed to be deployed by small and fast response vessels, requires fewer trained personnel, and takes only minutes of deployment time. Moreover, the integrated nature of the ETD DART (R) buoy, mooring, anchor and bottom pressure recorder subsystems allow for safe deployment in higher sea states from smaller and faster ships with limited deck equipment. The ship is only required to raise one edge of the ETD DART (R) shipping frame approximately one meter off the deck; gravity then self-deploys the system. This capability may be important to countries with limited traditional oceanographic ship availability or those who wish to significantly reduce large ship charter costs. The ETD DART (R) has been certified fully operational and is now an important new technology available to support the global tsunami detection network and other applications.
C1 [Lawson, R. A.; Graham, D.] Sci Applicat Int Corp, 4025 Hancock St, San Diego, CA 92110 USA.
[Stalin, S.; Meinig, C.; Tagawa, D.; Lawrence-Slavas, N.] NOAA, Pacific Marine Environm Lab, Seattle, WA 98115 USA.
[Hibbins, R.; Ingham, B.] Australian Bur Meteorol, Melbourne, Vic 3008, Australia.
RP Lawson, RA (reprint author), Sci Applicat Int Corp, 4025 Hancock St, San Diego, CA 92110 USA.
NR 3
TC 0
Z9 0
U1 0
U2 2
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 0197-7385
BN 978-1-4577-2091-8
J9 OCEANS-IEEE
PY 2012
PG 9
WC Engineering, Marine; Oceanography
SC Engineering; Oceanography
GA BCA51
UT WOS:000309461400056
ER
PT S
AU Paros, J
Migliacio, P
Schaad, T
Meinig, C
Spillane, M
Tang, L
Stalin, S
Chadwick, W
AF Paros, J.
Migliacio, P.
Schaad, T.
Meinig, C.
Spillane, M.
Tang, L.
Stalin, S.
Chadwick, W.
GP IEEE
TI Nano-resolution technology demonstrates promise for improved local
tsunami warnings on the MARS project
SO OCEANS, 2012 - YEOSU
SE OCEANS-IEEE
LA English
DT Proceedings Paper
CT OCEANS MTS/IEEE Conference
CY MAY 21-24, 2012
CL Yeosu, SOUTH KOREA
SP Marine Technol Soc, IEEE, IEEE Ocean Engn Soc, Korean Assoc Ocean Sci & Technol Soc (KAOSTS)
DE Tsunami; warnings; DART; BPR; pressure; measurement; nano-resolution;
cable; observatory; MARS
AB Recent advances in deep-ocean tsunami measurement technology coupled with tsunami forecast models have reliably demonstrated that tsunami impact can be predicted before the tsunami reaches the affected coastlines. These forecast models are based on observations that are typically 1000 km or more from the earthquake epicenter. The major challenge today is to forecast tsunamis in the near field where the tsunami wave is often overwhelmed by the seismic event. Nano-resolution pressure sensors have the necessary resolution to distinguish between tsunami and seismic signals and ocean noise in the near field. This study describes the results of a 17 month experiment that was initiated on June 30, 2010, at the Monterey Accelerated Research System (MARS) cabled observatory in Monterey Bay, California. The experiment compared a conventional pressure sensor and a nano-resolution pressure sensor at a depth of approximately 900 m. The results presented include examples of near-and far-field earthquakes and micro-tsunamis that were detected by the nano-resolution pressure sensor. Through wavelet analysis several micro-tsunamis were identified. The paper also describes additional testing planned by NOAA on the nano-resolution pressure sensors for potential application to the NOAA DART System.
C1 [Paros, J.; Migliacio, P.; Schaad, T.] Paroscientific Inc, Redmond, WA USA.
[Chadwick, W.] Oregon State Univ, Corvallis, OR 97331 USA.
[Meinig, C.; Spillane, M.; Tang, L.; Stalin, S.] NOAA, Pacific Marine Environ Lab, Seattle, WA USA.
RP Paros, J (reprint author), Paroscientific Inc, Redmond, WA USA.
RI Spillane, Michael/I-7870-2015
OI Spillane, Michael/0000-0003-0794-5675
FU Oregon State University from the National Science Foundation [award
OCE-0826490]
FX This project was funded by a grant to Oregon State University from the
National Science Foundation (award OCE- 0826490). We thank MBARI for
excellent logistical support during deployment and recovery of the
instrument and for operating the MARS cabled observatory.
NR 8
TC 0
Z9 0
U1 0
U2 5
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 0197-7385
BN 978-1-4577-2091-8
J9 OCEANS-IEEE
PY 2012
PG 6
WC Engineering, Marine; Oceanography
SC Engineering; Oceanography
GA BCA51
UT WOS:000309461400052
ER
PT J
AU Mantim, T
Saetear, P
Teerasong, S
Chan-Eam, S
Sereenonchai, K
Amornthammarong, N
Ratanawimarnwong, N
Wilairat, P
Meesiri, W
Uraisin, K
Nacapricha, D
AF Mantim, Thitirat
Saetear, Phoonthawee
Teerasong, Saowapak
Chan-Eam, Sumonmarn
Sereenonchai, Kamonthip
Amornthammarong, Natchanon
Ratanawimarnwong, Nuanlaor
Wilairat, Prapin
Meesiri, Wanchai
Uraisin, Kanchana
Nacapricha, Duangjai
TI Reagent-free analytical flow methods for the soft drink industry:
Efforts for environmentally friendly chemical analysis
SO PURE AND APPLIED CHEMISTRY
LA English
DT Article
DE capacitively coupled contactless conductivity detector (C4D); flow
analysis; green analytical chemistry; membraneless vaporization unit;
reagent-free; sequential injection; soft drinks
ID CONTACTLESS CONDUCTIVITY DETECTION; INJECTION ANALYSIS; MEMBRANELESS
VAPORIZATION; ESTUARINE WATERS; GREEN CHEMISTRY; CARBON-DIOXIDE;
GAS-DIFFUSION; SCHLIEREN; SPECTROPHOTOMETRY; SENSOR
AB The evolution of an entirely green analytical system for industrial quality control of carbonated drinks is described. The developed flow system is capable of providing analytical data of the dissolved CO2, sucrose, and color of a sample consecutively in real-time. The system has been carefully designed on the basis of "reagent-free", meaning that no added chemicals are required for the analysis. The system first vaporizes CO2 from the soft drink in a gas-liquid separation chamber, with a channel for a flow of pure water as the CO2 acceptor. The dissolved CO2 alters the conductivity of the water stream, which is directly related to the concentration of CO2 in the soft drink. The sucrose content is measured based on the "schlieren effect", the sample plug flows out of the vaporization chamber into a colorimeter with a near-infrared/light-emitting diode (NIR/LED) as light source. The schlieren effect arises at the boundary of pure water and soft drink with refraction of light in proportion to the sugar concentration. The system also measures the absorbance of the sample using an RGB-LED. The related principles and preliminary experiments as proof of concept are described as well as the construction of the flow system for this completely reagent-free analyzer. A simple flow injection system using the schlieren effect was also developed for rapid quantitative analysis of sugar in noncarbonated soft drinks.
C1 [Mantim, Thitirat; Saetear, Phoonthawee; Chan-Eam, Sumonmarn; Wilairat, Prapin; Uraisin, Kanchana; Nacapricha, Duangjai] Mahidol Univ, Fac Sci, Ctr Excellence Innovat Chem, Bangkok 10400, Thailand.
[Teerasong, Saowapak] King Mongkuts Inst Technol Ladkrabang, Fac Sci, Dept Chem, Bangkok, Thailand.
[Sereenonchai, Kamonthip] Thammasat Univ, Dept Chem, Fac Sci & Technol, Pathum Thani, Thailand.
[Amornthammarong, Natchanon] NOAA, Ocean Chem Div, AOML, Miami, FL USA.
[Ratanawimarnwong, Nuanlaor] Srinakharinwirot Univ, Fac Sci, Dept Chem, Bangkok, Thailand.
[Wilairat, Prapin] Mahidol Univ, Natl Doping Control Ctr, Bangkok 10700, Thailand.
[Meesiri, Wanchai] Bangkok High Lab Co Ltd, Bangkok, Thailand.
[Mantim, Thitirat; Saetear, Phoonthawee; Chan-Eam, Sumonmarn; Wilairat, Prapin; Uraisin, Kanchana; Nacapricha, Duangjai] Mahidol Univ, Fac Sci, Dept Chem, Bangkok 10400, Thailand.
EM duangjai.nac@mahidol.ac.th
RI Amornthammarong, Natchanon/A-5752-2011
OI Amornthammarong, Natchanon/0000-0003-1677-1865
FU Thailand Research Fund; Project for the Promotion of Science and
Mathematic Talented Teacher; Royal Golden Jubilee Ph.D. scholarships;
Development and Promotion of the Gifted in Science and Technology
Project (DPST)
FX This work was supported by grants from the Thailand Research Fund (NR)
and the Project for the Promotion of Science and Mathematic Talented
Teacher (ST). Support of equipment from the Center for Innovation in
Chemistry (PERCH-CIC), Commission on Higher Education, Ministry of
Education is thankfully acknowledged. The Royal Golden Jubilee Ph.D.
scholarships (TM, SC) and the Ph.D. scholarship from the Development and
Promotion of the Gifted in Science and Technology Project (DPST) for PS
are gratefully acknowledged. The authors would like to thank Mr.
Suttipong Saisarai for his kind help in drawing some of the figures.
NR 31
TC 4
Z9 4
U1 2
U2 11
PU INT UNION PURE APPLIED CHEMISTRY
PI RES TRIANGLE PK
PA 104 TW ALEXANDER DR, PO BOX 13757, RES TRIANGLE PK, NC 27709-3757 USA
SN 0033-4545
J9 PURE APPL CHEM
JI Pure Appl. Chem.
PY 2012
VL 84
IS 10
BP 2015
EP 2025
DI 10.1351/PAC-CON-12-02-06
PG 11
WC Chemistry, Multidisciplinary
SC Chemistry
GA 017HO
UT WOS:000309581000006
ER
PT S
AU Uys, H
Biercuk, M
Britton, J
Bollinger, JJ
AF Uys, Hermann
Biercuk, Michael
Britton, Joe
Bollinger, John J.
BE Bruning, E
Konrad, T
Petruccione, F
TI Toward Spin Squeezing with Trapped Ions
SO QUANTUM AFRICA 2010: THEORETICAL AND EXPERIMENTAL FOUNDATIONS OF RECENT
QUANTUM TECHNOLOGY
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT Conference on Quantum Africa - Recent Progress in the Theoretical and
Experimental Foundations of Quantum Technology
CY SEP 20-23, 2010
CL Umhlanga, SOUTH AFRICA
SP Natl Inst Theoret Phys, Natl Res Fdn, Univ KwaZulu-Natal
DE Trapped ions; precision measurement; squeezing
ID ENTANGLEMENT; STATES; LIMIT
AB Building robust instruments capable of making interferometric measurements with precision beyond the standard quantum limit remains an important goal in many metrology laboratories. We describe here the basic concepts underlying spin squeezing experiments that allow one to surpass this limit. In principle it is possible to reach the so-called Heisenberg limit, which constitutes an improvement in precision by a factorv N, where N is the number of particles on which the measurement is carried out. In particular, we focus on recent progress toward implementing spin squeezing with a cloud of beryllium ions in a Penning ion trap, via the geometric phase gate used more commonly for performing two-qubit entangling operations in quantum computing experiments.
C1 [Uys, Hermann] Natl Laser Ctr, Council Sci & Ind Res, Pretoria, South Africa.
[Biercuk, Michael] Univ Sydney, Sch Phys, Sydney, NSW 2006, Australia.
[Britton, Joe; Bollinger, John J.] Natl Inst Stand & Technol, Boulder, CO USA.
RP Uys, H (reprint author), Natl Laser Ctr, Council Sci & Ind Res, Pretoria, South Africa.
EM Hermann.uys@gmail.com
RI Biercuk, Michael/B-4768-2010
FU DARPA OLE program
FX The Penning trap work is supported by the DARPA OLE program. NIST is an
agency of the US government. This work is not subject to US copyright.
NR 16
TC 2
Z9 2
U1 0
U2 1
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-1076-3
J9 AIP CONF PROC
PY 2012
VL 1469
BP 108
EP 121
DI 10.1063/1.4746066
PG 14
WC Physics, Multidisciplinary
SC Physics
GA BCA96
UT WOS:000309523100011
ER
PT J
AU Kalnay, E
Ota, Y
Miyoshi, T
Liu, JJ
AF Kalnay, Eugenia
Ota, Yoichiro
Miyoshi, Takemasa
Liu, Junjie
TI A simpler formulation of forecast sensitivity to observations:
application to ensemble Kalman filters
SO TELLUS SERIES A-DYNAMIC METEOROLOGY AND OCEANOGRAPHY
LA English
DT Article
DE Ensemble Kalman Filter; forecast sensitivity; observation impact; skill
dropout; ensemble sensitivity; data assimilation
ID DATA ASSIMILATION; OBSERVATION IMPACT; MODELS; SYSTEM
AB We introduce a new formulation of the ensemble forecast sensitivity developed by Liu and Kalnay with a small correction from Li et al. The new formulation, like the original one, is tested on the simple Lorenz 40-variable model. We find that, except for short-range forecasts, the use of localization in the analysis, necessary in ensemble Kalman filter (EnKF) when the number of ensemble members is much smaller than the model's degrees of freedom, has a negative impact on the accuracy of the sensitivity. This is because the impact of an observation during the analysis (i.e. the analysis increment associated with the observation) is transported by the flow during the integration, and this is ignored when the ensemble sensitivity uses a fixed localization. To address this problem, we introduce two approaches that could be adapted to evolve the localization during the estimation of forecast sensitivity to the observations. The first one estimates the non-linear evolution of the initial localization but is computationally expensive. The second one moves the localization with a constant estimation of the group velocity. Both methods succeed in improving the ensemble estimations for longer forecasts.
Overall, the adjoint and ensemble forecast impact estimations give similarly accurate results for short-range forecasts, except that the new formulation gives an estimation of the fraction of observations that improve the forecast closer to that obtained by data denial (Observing System Experiments). For longer-range forecasts, they both deteriorate for different reasons. The adjoint sensitivity becomes noisy due to the forecast non-linearities not captured in the linear tangent model and the adjoint. The ensemble sensitivity becomes less accurate due to the use of a fixed localization, a problem that could be ameliorated with an evolving adaptive localization. Advantages of the new formulation include it being simpler than the original formulation and computationally more efficient and that it can be applied to other EnKF methods in addition to the local ensemble transform Kalman filter.
C1 [Kalnay, Eugenia; Miyoshi, Takemasa] Univ Maryland, College Pk, MD 20742 USA.
[Ota, Yoichiro] Natl Ctr Environm Predict, College Pk, MD 20740 USA.
[Liu, Junjie] CALTECH, Jet Prop Lab, Pasadena, CA USA.
RP Kalnay, E (reprint author), Univ Maryland, College Pk, MD 20742 USA.
EM ekalnay@atmos.umd.edu
RI Miyoshi, Takemasa/C-2768-2009;
OI Miyoshi, Takemasa/0000-0003-3160-2525; Kalnay,
Eugenia/0000-0002-9984-9906
NR 13
TC 14
Z9 14
U1 0
U2 3
PU CO-ACTION PUBLISHING
PI JARFALLA
PA RIPVAGEN 7, JARFALLA, SE-175 64, SWEDEN
SN 0280-6495
J9 TELLUS A
JI Tellus Ser. A-Dyn. Meteorol. Oceanol.
PY 2012
VL 64
AR 18462
DI 10.3402/tellusa.v64i0.18462
PG 9
WC Meteorology & Atmospheric Sciences; Oceanography
SC Meteorology & Atmospheric Sciences; Oceanography
GA 022LA
UT WOS:000309959700001
ER
PT J
AU Cheung, KP
Campbell, JP
Potbhare, S
Oates, A
AF Cheung, Kin P.
Campbell, J. P.
Potbhare, S.
Oates, A.
GP IEEE
TI The Amplitude of Random Telegraph Noise: Scaling Implications
SO 2012 IEEE INTERNATIONAL RELIABILITY PHYSICS SYMPOSIUM (IRPS)
LA English
DT Proceedings Paper
CT IEEE International Reliability Physics Symposium (IRPS)
CY APR 15-19, 2012
CL Anaheim, CA
SP IEEE
AB We introduce a simple and intuitive model to relate the amplitude of random telegraph noise (RTN) fluctuations to the columbic influence of single trap charges on the inversion layer. The prediction of this model is in excellent agreement with results extracted from experiment using the "hole-in-the-inversion-layer" model for RTN amplitude. This new model allows us to quantitatively examine the impact of "worst-case" RTN in future scaling nodes.
C1 [Cheung, Kin P.; Campbell, J. P.; Potbhare, S.] Natl Inst Stand & Technol, Div Semicond Elect, Gaithersburg, MD 20899 USA.
[Oates, A.] TSMC, Hsinchu, Taiwan.
RP Cheung, KP (reprint author), Natl Inst Stand & Technol, Div Semicond Elect, Gaithersburg, MD 20899 USA.
NR 12
TC 0
Z9 0
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-4577-1679-9
PY 2012
PG 3
WC Engineering, Electrical & Electronic; Physics, Applied
SC Engineering; Physics
GA BBZ44
UT WOS:000309183100138
ER
PT J
AU Ryan, JT
Southwick, RG
Campbell, JP
Cheung, KP
Young, CD
Suehle, JS
AF Ryan, J. T.
Southwick, R. G.
Campbell, J. P.
Cheung, K. P.
Young, C. D.
Suehle, J. S.
GP IEEE
TI Spectroscopic Charge Pumping in the Presence of High Densities of Bulk
Dielectric Traps
SO 2012 IEEE INTERNATIONAL RELIABILITY PHYSICS SYMPOSIUM (IRPS)
LA English
DT Proceedings Paper
CT IEEE International Reliability Physics Symposium (IRPS)
CY APR 15-19, 2012
CL Anaheim, CA
SP IEEE
DE high-k dielectrics; charge pumping spectroscopy
ID INTERFACE DEFECTS; DISTRIBUTIONS; TRANSISTORS; RESONANCE; ENERGY; OXIDE;
HFO2; SI
AB We demonstrate the extension of the recently developed spectroscopic charge-pumping (CP) technique to high-k gate stacks. To deal with the high density of bulk traps, we develop an experimentally based methodology to remove the bulk trap contribution from the measured CP data. We demonstrate the capability of the spectroscopic CP technique to measure band edge states and show that the traditional U-shaped continuum of band edge states is not intrinsic to Si/SiO2 interfaces.
C1 [Ryan, J. T.; Southwick, R. G.; Campbell, J. P.; Cheung, K. P.; Suehle, J. S.] NIST, Semicond & Dimens Metrol Div, Gaithersburg, MD 20899 USA.
[Young, C. D.] SEMATECH, Albany, NY USA.
RP Ryan, JT (reprint author), NIST, Semicond & Dimens Metrol Div, Gaithersburg, MD 20899 USA.
EM kpckpc@ieee.org
RI Young, Chadwin/K-7326-2012
OI Young, Chadwin/0000-0003-0690-7423
NR 18
TC 0
Z9 0
U1 0
U2 5
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-4577-1679-9
PY 2012
PG 4
WC Engineering, Electrical & Electronic; Physics, Applied
SC Engineering; Physics
GA BBZ44
UT WOS:000309183100161
ER
PT J
AU Author, FA
Author, SB
Author, TC
AF Author, First A.
Author, Second B., Jr.
Author, Third C.
GP IEEE
TI Template for Preparation of Papers for IEEE Sponsored Conferences &
Symposia
SO 2012 IEEE/ASME INTERNATIONAL CONFERENCE ON ADVANCED INTELLIGENT
MECHATRONICS (AIM)
LA English
DT Proceedings Paper
CT IEEE/ASME International Conference on Advanced Intelligent Mechatronics
(AIM)
CY JUL 11-14, 2012
CL Kaohsiung, TAIWAN
SP I-Rice - NSC, IEEE, IES, IEEE Robot & Automat Soc, Bur Foreign Trade, RDMA TW, ASME, DSC
ID EQUALIZATION
AB This electronic document is a "live" template. The various components of your paper [title, text, heads, etc.] are already defined on the style sheet, as illustrated by the portions given in this document.
C1 [Author, First A.] Natl Inst Stand & Technol, Boulder, CO 80306 USA.
[Author, Second B., Jr.] Colorado State Univ, Dept Phys, Ft Collins, CO 80523 USA.
[Author, Third C.] Univ Colorado, Dept Elect Engn, Boulder, CO 80309 USA.
RP Author, FA (reprint author), Natl Inst Stand & Technol, Boulder, CO 80306 USA.
EM author@boulder.nist.gov; author@lamar.colostate.edu; author@nrim.go.jp
FU ABC Foundation
FX Resrach supported by ABC Foundation.
NR 20
TC 0
Z9 0
U1 1
U2 2
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-4673-2576-9
PY 2012
BP 374
EP 376
PG 3
WC Automation & Control Systems; Engineering, Electrical & Electronic;
Robotics
SC Automation & Control Systems; Engineering; Robotics
GA BBZ04
UT WOS:000309064200062
ER
PT S
AU Cassard, J
Geist, J
Gaitan, M
Seiler, DG
AF Cassard, Janet
Geist, Jon
Gaitan, Michael
Seiler, David G.
GP IEEE
TI The MEMS 5-in-1 Reference Materials (RM 8096 and 8097)
SO 2012 IEEE INTERNATIONAL CONFERENCE ON MICROELECTRONIC TEST STRUCTURES
(ICMTS)
SE IEEE International Conference on Microelectronic Test Structures
LA English
DT Proceedings Paper
CT IEEE International Conference on Microelectronic Test Structures (ICMTS)
CY MAR 20-22, 2012
CL San Diego, CA
SP IEEE, IEEE Electron Devices Soc
AB The Microelectromechanical Systems (MEMS) 5-in-1 Reference Material (RM) contains test structures for five standard test methods on one test chip, so companies can compare their in-house measurements taken on the RM with National Institute of Standards and Technology (NIST) measurements, thereby validating their use of the documentary standard test methods. Examples of NIST reference values are given for an RM 8096 monitor chip used at NIST for stability studies.
C1 [Cassard, Janet; Geist, Jon; Gaitan, Michael; Seiler, David G.] NIST, Semicond & Dimens Metrol Div, Phys Measurement Lab, Gaithersburg, MD 20899 USA.
RP Cassard, J (reprint author), NIST, Semicond & Dimens Metrol Div, Phys Measurement Lab, Gaithersburg, MD 20899 USA.
NR 8
TC 0
Z9 0
U1 1
U2 2
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1071-9032
BN 978-1-4673-1028-4
J9 IEEE INT C MICROELEC
PY 2012
BP 211
EP 216
PG 6
WC Engineering, Electrical & Electronic
SC Engineering
GA BBZ10
UT WOS:000309102200041
ER
PT J
AU Stein, AF
Saylor, RD
AF Stein, A. F.
Saylor, R. D.
TI Sensitivities of sulfate aerosol formation and oxidation pathways on the
chemical mechanism employed in simulations
SO ATMOSPHERIC CHEMISTRY AND PHYSICS
LA English
DT Article
ID CMAQ MODELING SYSTEM; PHOTOCHEMICAL MECHANISMS; ETA-MODEL; URBAN;
INDICATORS; CHEMISTRY; ICARTT; OZONE; CB05; CB4
AB The processes of aerosol sulfate formation are vital components in the scientific understanding of perturbations of earth's radiative balance via aerosol direct and indirect effects. In this work, an analysis of the influence of changes in oxidant levels and sulfur dioxide oxidation pathways was performed to study the underlying pathways for sulfate formation. Sensitivities of this constituent were calculated from a series of photochemical model simulations with varying rates of NOx and VOC emissions to produce variations in oxidant abundances using a photochemical model (CMAQ) that covers the eastern US for part of the ICARTT 2004 campaign. Three different chemical mechanisms (CBIV, CB05, and SAPRC99) were used to test model responses to changes in NOx and VOC concentrations. Comparison of modeled results and measurements demonstrates that the simulations with all three chemical mechanisms capture the levels of sulfate reasonably well. However, the three mechanisms are shown to have significantly different responses in sulfate formation when the emissions of NOx and/or VOC are altered, reflecting different photochemical regimes under which the formation of sulfate occurs. Also, an analysis of the oxidation pathways that contribute to sulfur dioxide conversion to sulfate reveals substantial differences in the importance of the various pathways among the three chemical mechanisms. These findings suggest that estimations of the influence that future changes in primary emissions or other changes which perturb SO2 oxidants have on sulfate abundances, and on its direct and indirect radiative forcing effects, may be dependent on the chemical mechanism employed in the model analysis.
C1 [Stein, A. F.] NOAA, ERT Inc, ARL, College Pk, MD USA.
[Saylor, R. D.] NOAA, ARL, Atmospher Turbulence & Diffus Div, Oak Ridge, TN USA.
RP Stein, AF (reprint author), NOAA, ERT Inc, ARL, College Pk, MD USA.
EM ariel.stein@noaa.gov
RI Saylor, Rick/D-1252-2014; Stein, Ariel F/L-9724-2014
OI Saylor, Rick/0000-0003-4835-8290; Stein, Ariel F/0000-0002-9560-9198
FU US Weather Research Program
FX The authors like to thank Shaocai Yu for facilitating the emission and
meteorological data as well as part of the software used to extract the
data from the model. Daewon Byun (1956-2011) is also acknowledged for
helpful discussions. This work was funded in part by the US Weather
Research Program.
NR 24
TC 6
Z9 7
U1 1
U2 22
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1680-7316
EI 1680-7324
J9 ATMOS CHEM PHYS
JI Atmos. Chem. Phys.
PY 2012
VL 12
IS 18
BP 8567
EP 8574
DI 10.5194/acp-12-8567-2012
PG 8
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 015CZ
UT WOS:000309424300017
ER
PT J
AU Gao, RS
Ballard, J
Watts, LA
Thornberry, TD
Ciciora, SJ
McLaughlin, RJ
Fahey, DW
AF Gao, R. S.
Ballard, J.
Watts, L. A.
Thornberry, T. D.
Ciciora, S. J.
McLaughlin, R. J.
Fahey, D. W.
TI A compact, fast UV photometer for measurement of ozone from research
aircraft
SO ATMOSPHERIC MEASUREMENT TECHNIQUES
LA English
DT Article
ID WATER-VAPOR INTERFERENCE; STRATOSPHERIC OZONE; ABSORPTION; EMISSIONS;
LIGHT
AB In situ measurements of atmospheric ozone (O-3) are performed routinely from many research aircraft platforms. The most common technique depends on the strong absorption of ultraviolet (UV) light by ozone. As atmospheric science advances to the widespread use of unmanned aircraft systems (UASs), there is an increasing requirement for minimizing instrument space, weight, and power while maintaining instrument accuracy, precision and time response. The design and use of a new, dual-beam, UV photometer instrument for in situ O-3 measurements is described. A polarization optical-isolator configuration is utilized to fold the UV beam inside the absorption cells, yielding a 60-cm absorption length with a 30-cm cell. The instrument has a fast sampling rate (2 Hz at < 200 hPa, 1 Hz at 200-500 hPa, and 0.5 Hz at >= 500 hPa), high accuracy (3% excluding operation in the 300-450 hPa range, where the accuracy may be degraded to about 5 %), and excellent precision (1.1 x 10(10) O-3 molecules cm(-3) at 2 Hz, which corresponds to 3.0 ppb at 200 K and 100 hPa, or 0.41 ppb at 273 K and 1013 hPa). The size (36 l), weight (18 kg), and power (50-200 W) make the instrument suitable for many UASs and other airborne platforms. Inlet and exhaust configurations are also described for ambient sampling in the troposphere and lower stratosphere (1000-50 hPa) that control the sample flow rate to maximize time response while minimizing loss of precision due to induced turbulence in the sample cell. In-flight and laboratory intercomparisons with existing O-3 instruments show that measurement accuracy is maintained in flight.
C1 [Gao, R. S.; Ballard, J.; Watts, L. A.; Thornberry, T. D.; Ciciora, S. J.; McLaughlin, R. J.; Fahey, D. W.] NOAA, Earth Syst Res Lab, Div Chem Sci, Boulder, CO USA.
[Ballard, J.; Watts, L. A.; Thornberry, T. D.; Fahey, D. W.] Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA.
RP Gao, RS (reprint author), NOAA, Earth Syst Res Lab, Div Chem Sci, 325 Broadway, Boulder, CO USA.
EM rushan.gao@noaa.gov
RI Manager, CSD Publications/B-2789-2015; Thornberry, Troy/H-7106-2013;
Gao, Ru-Shan/H-7455-2013; McLaughlin, Richard/I-4386-2013; Ciciora,
Steven/I-4916-2013; Watts, Laurel/G-4532-2013; Fahey, David/G-4499-2013
OI Watts, Laurel/0000-0002-0834-3329; Fahey, David/0000-0003-1720-0634
FU NOAA Atmospheric Composition and Climate Program; NASA Radiation
Sciences Program; NASA Upper Atmosphere Research Program
FX This research was supported by the NOAA Atmospheric Composition and
Climate Program, the NASA Radiation Sciences Program, and the NASA Upper
Atmosphere Research Program. We thank K. K. Kelly for insightful
discussions.
NR 29
TC 8
Z9 9
U1 2
U2 13
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1867-1381
J9 ATMOS MEAS TECH
JI Atmos. Meas. Tech.
PY 2012
VL 5
IS 9
BP 2201
EP 2210
DI 10.5194/amt-5-2201-2012
PG 10
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 015BF
UT WOS:000309419200009
ER
PT J
AU Turnbull, J
Guenther, D
Karion, A
Sweeney, C
Anderson, E
Andrews, A
Kofler, J
Miles, N
Newberger, T
Richardson, S
Tans, P
AF Turnbull, J.
Guenther, D.
Karion, A.
Sweeney, C.
Anderson, E.
Andrews, A.
Kofler, J.
Miles, N.
Newberger, T.
Richardson, S.
Tans, P.
TI An integrated flask sample collection system for greenhouse gas
measurements
SO ATMOSPHERIC MEASUREMENT TECHNIQUES
LA English
DT Article
ID CARBON-DIOXIDE; SCALE; AIR; CO2
AB A one hour integrated flask sampling system to collect air in automated NOAA/ESRL 12-flask packages is described. The integrating compressor system uses a mass flow controller to regulate the flow of air through a 15 l volume, thus providing a mixture of air collected over an hourlong period. By beginning with a high flow rate of 3.8 standard liters per minute and gradually decreasing the flow rate over time to 0.29 standard liters per minute it is possible to obtain a nearly uniformly time averaged sample of air and collect it into a pressurized 0.7 l flask. The weighting function determining the air mixture obtained is described in detail. Laboratory and field tests demonstrate that the integrated sample approximates a simple mean of air collected during the one-hour sampling time.
C1 [Turnbull, J.] GNS Sci, Natl Isotope Ctr, Lower Hutt, New Zealand.
[Turnbull, J.; Guenther, D.; Karion, A.; Sweeney, C.; Anderson, E.; Kofler, J.; Newberger, T.] Univ Colorado, CIRES, Boulder, CO 80309 USA.
[Guenther, D.; Karion, A.; Sweeney, C.; Anderson, E.; Andrews, A.; Kofler, J.; Newberger, T.; Tans, P.] NOAA ESRL, Boulder, CO USA.
[Miles, N.; Richardson, S.] Penn State Univ, University Pk, PA 16802 USA.
RP Turnbull, J (reprint author), GNS Sci, Natl Isotope Ctr, Lower Hutt, New Zealand.
EM j.turnbull@gns.cri.nz
RI Andrews, Arlyn/K-3427-2012;
OI Turnbull, Jocelyn/0000-0002-0306-9658
FU National Institute of Standards and Technology [60NANB10D023]
FX Flask measurements and field logistics were performed by NOAA/ESRL/CCGG.
Funding for this project was provided by the National Institute of
Standards and Technology Grant number 60NANB10D023. We thank the two
reviewers and the AMT editor for their helpful advice in improving this
manuscript.
NR 11
TC 6
Z9 6
U1 2
U2 10
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1867-1381
J9 ATMOS MEAS TECH
JI Atmos. Meas. Tech.
PY 2012
VL 5
IS 9
BP 2321
EP 2327
DI 10.5194/amt-5-2321-2012
PG 7
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 015BF
UT WOS:000309419200017
ER
PT J
AU Curtis, JE
McAuley, A
Nanda, H
Krueger, S
AF Curtis, Joseph E.
McAuley, Arnold
Nanda, Hirsh
Krueger, Susan
TI Protein structure and interactions in the solid state studied by
small-angle neutron scattering
SO FARADAY DISCUSSIONS
LA English
DT Article
ID AQUEOUS-SOLUTIONS; PHASE-SEPARATION; TECHNOLOGY
AB Small-angle neutron scattering (SANS) is uniquely qualified to study the structure of proteins in liquid and solid phases that are relevant to food science and biotechnological applications. We have used SANS to study a model protein, lysozyme, in both the liquid and water ice phases to determine its gross-structure, interparticle interactions and other properties. These properties have been examined under a variety of solution conditions before, during, and after freezing. Results for lysozyme at concentrations of 50 mg mL(-1) and 100 mg mL(-1), with NaCl concentrations of 0.4 M and 0 M, respectively, both in the liquid and frozen states, are presented and implications for food science are discussed.
C1 [Curtis, Joseph E.; Nanda, Hirsh; Krueger, Susan] NIST, NIST Ctr Neutron Res, Gaithersburg, MD 20899 USA.
[McAuley, Arnold] Amgen Inc, Dept Analyt & Formulat Sci, Thousand Oaks, CA 91320 USA.
RP Krueger, S (reprint author), NIST, NIST Ctr Neutron Res, Gaithersburg, MD 20899 USA.
EM susan.krueger@nist.gov
FU National Science Foundation [DMR-0944772]
FX This work utilized facilities supported in part by the National Science
Foundation under Agreement No. DMR-0944772.
NR 18
TC 9
Z9 9
U1 0
U2 13
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1359-6640
J9 FARADAY DISCUSS
JI Faraday Discuss.
PY 2012
VL 158
BP 285
EP 299
DI 10.1039/c2fd20027a
PG 15
WC Chemistry, Physical
SC Chemistry
GA 014WV
UT WOS:000309407400016
PM 23234171
ER
PT J
AU Gisler, AW
Nesbitt, DJ
AF Gisler, Andrew W.
Nesbitt, David J.
TI On probing ions at the gas-liquid interface by quantum state-resolved
molecular beam scattering: the curious incident of the cation in the
night time
SO FARADAY DISCUSSIONS
LA English
DT Article
ID ELECTRIC QUADRUPOLE-MOMENTS; SELF-ASSEMBLED MONOLAYERS; SUM-FREQUENCY
GENERATION; SURFACE ENERGY-EXCHANGE; CO2 SCATTERING; VIBRATIONAL
SPECTROSCOPY; COLLISION ENERGY; SALT-SOLUTIONS; WATER-SURFACE; DYNAMICS
AB There has been a long standing controversy over the preferential presence or absence of cations vs. anions at the gas-liquid interface, dating back to early theoretical efforts by Onsager and co-workers [J. Chem. Phys., 1934, 2, 528]. In the present work, we describe our first efforts to selectively probe ions at the interface via a completely novel approach, based on scattering high energy, jet cooled molecular projectiles from the surface of hydrogen bonded liquids with dissolved alkali halide salts as the source of solvated charges. In particular, this work focuses on preliminary results from quantum state-resolved scattering studies as a function of anion (Cl-, I-), and cation identity (Li+, Na+, K+) in alkali halide/glycerol solutions. By way of physical picture, a quadrupolar projectile such as CO2 preferentially aligns parallel (anions) or perpendicular (cations) to the interface, which could therefore make rotational energy transfer sensitive to the sign of the ion charge. Experimentally, we find that the impulsive scattered (IS) CO2 rotational distributions reveal a clear dependence on anion identity (e.g., hotter for [I-] than [Cl-]), but with essentially no corresponding sensitivity to cation species (e.g., [Li+] indistinguishable from [K+]). Detailed trajectory calculations are used to provide additional insight into the anticipated and observed experimental trends.
C1 [Nesbitt, David J.] Univ Colorado, JILA, Boulder, CO 80309 USA.
NIST, Boulder, CO 80309 USA.
Univ Colorado, Dept Chem & Biochem, Boulder, CO 80309 USA.
RP Nesbitt, DJ (reprint author), Univ Colorado, JILA, Boulder, CO 80309 USA.
EM djn@jila.colorado.edu
FU Air Force Office of Scientific Research; National Science Foundation
FX This work has been supported by the Air Force Office of Scientific
Research, with additional funding for the diode laser spectrometer from
the National Science Foundation. We also would like to acknowledge
support and helpful discussions with members of the NSF CCI Center for
Energetic Non-equilibrium Chemistry at Interfaces (CENECI).
NR 34
TC 7
Z9 7
U1 2
U2 16
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1359-6640
J9 FARADAY DISCUSS
JI Faraday Discuss.
PY 2012
VL 157
BP 297
EP 305
DI 10.1039/c2fd20026k
PG 9
WC Chemistry, Physical
SC Chemistry
GA 011BF
UT WOS:000309137600016
PM 23230774
ER
PT J
AU Takahashi, M
Checkley, DM
Litz, MNC
Brodeur, RD
Peterson, WT
AF Takahashi, Motomitsu
Checkley, David M., Jr.
Litz, Marisa N. C.
Brodeur, Richard D.
Peterson, William T.
TI Responses in growth rate of larval northern anchovy (Engraulis mordax)
to anomalous upwelling in the northern California Current
SO FISHERIES OCEANOGRAPHY
LA English
DT Article
DE California Current; delayed upwelling; growth rate; increment width;
northern anchovy; otolith
ID OYASHIO TRANSITIONAL WATERS; JAPANESE ANCHOVY; ICHTHYOPLANKTON
COMMUNITY; ENVIRONMENTAL HISTORIES; POPULATION-GROWTH; PACIFIC SARDINE;
JAPONICUS; OCEAN; ECOSYSTEM; SURVIVAL
AB We examined variability in growth rate during the larval stage of northern anchovy (Engraulis mordax) in response to physical and biological environmental factors in 2005 and 2006. The onset of spring upwelling was anomalously delayed by 23 months until mid-July in 2005; in contrast, spring upwelling in 2006 began as a normal year in the northern California Current. Larval and early juvenile E. mordax were collected in August, September, and October off the coast of Oregon and Washington. Hatch dates ranged from May to September, with peaks in June and August in 2005 and a peak in July in 2006, based on the number of otolith daily increments. Back-calculated body length-at-age in the June 2005 hatch cohort was significantly smaller than in the August 2005 cohort, which had comparable growth to the July 2006 cohort. Standardized otolith daily increment widths as a proxy for seasonal variability in somatic growth rates in 2005 were negative until late July and then changed to positive with intensification of upwelling. The standardized increment width was a positive function of biomass of chlorophyll a concentration, and neritic cold-water and oceanic subarctic copepod species sampled biweekly off Newport, Oregon. Our results suggest that delayed upwelling in 2005 resulted in low food availability and, consequently, reduced E. mordax larval growth rate in early summer, but once upwelling began in July, high food availability enhanced larval growth rate to that typical of a normal upwelling year (e.g., 2006) in the northern California Current.
C1 [Takahashi, Motomitsu; Checkley, David M., Jr.] Univ Calif San Diego, Scripps Inst Oceanog, La Jolla, CA 92039 USA.
[Litz, Marisa N. C.] Oregon State Univ, Hatfield Marine Sci Ctr, Cooperat Inst Marine Resources Studies, Newport, OR 97365 USA.
[Brodeur, Richard D.; Peterson, William T.] Oregon State Univ, Hatfield Marine Sci Ctr, NW Fisheries Sci Ctr, NOAA Fisheries, Newport, OR 97365 USA.
RP Takahashi, M (reprint author), Fisheries Res Agcy, Seikai Natl Fisheries Res Inst, 1551-8 Taira Machi, Nagasaki 8512213, Japan.
EM takahamt@fra.affrc.go.jp
FU Japan Society for the Promotion of Science (JSPS); Bonneville Power
Administration; NOAA Stock Assessment Improvement Program; U.S. GLOBEC -
Northeast Pacific Program
FX We thank Hannes Baumann and Brian Wells for helpful suggestions on the
manuscript. We are also grateful to Tatsuro Akamine, Toby Auth, Bryan
Black, Kurt Fresh and Jessica Miller for critical comments on this
study. We are grateful to Robert Emmett and A. Jason Phillips for
invaluable assistance collecting fish samples. We thank the captains,
crew, and scientists aboard the R/V Miller Freeman and F/Vs Frosti,
Piky, and Predator for their assistance in obtaining hydrographical and
fish samples, and the R/V Elakha for the phytoplankton and zooplankton
samples. Nobuhito Nango and Yoshiro Watanabe provided the otolith
measurement system at the Scripps Institution of Oceanography,
University of California, San Diego. This study was supported in part by
the Japan Society for the Promotion of Science (JSPS) through a
Postdoctoral Fellowship for Research Abroad and the Research Fellowships
for Young Scientists. Funding for the collection and processing of
samples was provided in part by the Bonneville Power Administration,
NOAA Stock Assessment Improvement Program and the U.S. GLOBEC -
Northeast Pacific Program.
NR 47
TC 11
Z9 11
U1 1
U2 29
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 1054-6006
EI 1365-2419
J9 FISH OCEANOGR
JI Fish Oceanogr.
PY 2012
VL 21
IS 6
BP 393
EP 404
DI 10.1111/j.1365-2419.2012.00633.x
PG 12
WC Fisheries; Oceanography
SC Fisheries; Oceanography
GA 015KZ
UT WOS:000309446100002
ER
PT J
AU Rooper, CN
Boldt, JL
Batten, S
Gburski, C
AF Rooper, Christopher N.
Boldt, Jennifer L.
Batten, Sonia
Gburski, Christopher
TI Growth and production of Pacific ocean perch (Sebastes alutus) in
nursery habitats of the Gulf of Alaska
SO FISHERIES OCEANOGRAPHY
LA English
DT Article
DE Alaska; bioenergetics model; growth; habitat; recruitment; Sebastes
ID JUVENILE ROCKFISHES SEBASTES; PRINCE-WILLIAM-SOUND; ENGLISH SOLE;
CONCENTRATION HYPOTHESIS; SOUTHEASTERN ALASKA; WALLEYE POLLOCK;
ABUNDANCE; CALIFORNIA; LARVAL; RATES
AB Nursery areas for juvenile fishes are often important for determining recruitment in marine populations by providing habitats that can maximize growth and thereby minimize mortality. Pacific ocean perch (POP, Sebastes alutus) have an extended juvenile period where they inhabit rocky nursery habitats. We examined POP nursery areas to link growth potential to recruitment. Juvenile POP were captured from nursery areas in 2004 and 2008, and estimated growth rates ranged from -0.19 to 0.60 g day-1 based on differences in size between June and August. Predicted growth rates from a bioenergetics model ranged from 0.05 to 0.49 g day-1 and were not significantly different than observed. Substrate preferences and the distribution of their preferred habitats were utilized to predict the extent of juvenile POP nursery habitat in the Gulf of Alaska. Based on densities of fish observed on underwater video transects and the spatial extent of nursery areas, we predicted 278 and 290 million juvenile POP were produced in 2004 and 2008. Growth potential for juvenile POP was reconstructed using the bioenergetics model, spring zooplankton bloom timing and duration and bottom water temperature for 19822008. When a single outlying recruitment year in 1986 was removed, growth potential experienced by juvenile POP in nursery areas was significantly correlated to the recruitment time-series from the stock assessment, explaining similar to 30% of the variability. This research highlights the potential to predict recruitment using habitat-based methods and provides a potential mechanism for explaining some of the POP recruitment variability observed for this population.
C1 [Rooper, Christopher N.; Gburski, Christopher] NOAA, Natl Marine Fisheries Serv, Alaska Fisheries Sci Ctr, Seattle, WA 98115 USA.
[Boldt, Jennifer L.] Fisheries & Oceans Canada, Pacific Biol Stn, Nanaimo, BC V9T 6N7, Canada.
[Batten, Sonia] Sir Alister Hardy Fdn Ocean Sci, Nanaimo, BC V9V 1N8, Canada.
RP Rooper, CN (reprint author), NOAA, Natl Marine Fisheries Serv, Alaska Fisheries Sci Ctr, 7600 Sand Point Way NE, Seattle, WA 98115 USA.
EM chris.rooper@noaa.gov
FU AFSC RACE; AFSC EFH; North Pacific Research Board
FX We would like to thank R. Heintz, M. Auburn-Cook, A. Whitehouse, R.
Hibpshman, K. Aydin, G. Lang, J. Hill, D. Beauchamp, N. Overman, M.
Zimmermann, G. Hoff, B. Goetz, and EcoAnalysts Inc. for their assistance
in data collection and laboratory analyses. L. Ciannelli provided
helpful advice on the bioenergetics model and M. Trudel provided advice
on the consumption model. This manuscript was reviewed by C. Conrath, B.
Knoth, M. Wilkins, and D. Somerton. This research was partially funded
by the AFSC RACE program, the AFSC EFH program, and the North Pacific
Research Board. NOAA_OI_SST_V2 data provided by the NOAA/OAR/ESRL PSD,
Boulder, CO, USA, from their website at http://www.esrl.noaa.gov/psd/.
CPR data were collected through the support of a consortium managed by
the North Pacific Marine Science Organization, which comprises the Exxon
Valdez Oil Spill Trustee Council, the North Pacific Research Board,
Fisheries and Oceans Canada, and Sir Alister Hardy Foundation for Ocean
Science. The findings and conclusions in the paper are those of the
author(s) and do not necessarily represent the views of the National
Marine Fisheries Service.
NR 49
TC 0
Z9 0
U1 3
U2 12
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 1054-6006
J9 FISH OCEANOGR
JI Fish Oceanogr.
PY 2012
VL 21
IS 6
BP 415
EP 429
DI 10.1111/j.1365-2419.2012.00635.x
PG 15
WC Fisheries; Oceanography
SC Fisheries; Oceanography
GA 015KZ
UT WOS:000309446100004
ER
PT J
AU Pirtle, JL
Eckert, GL
Stoner, AW
AF Pirtle, J. L.
Eckert, G. L.
Stoner, A. W.
TI Habitat structure influences the survival and predator-prey interactions
of early juvenile red king crab Paralithodes camtschaticus
SO MARINE ECOLOGY PROGRESS SERIES
LA English
DT Article
DE Red king crab; Paralithodes camtschaticus; Nursery habitat dynamics;
Predator-prey interaction; Habitat complexity; Refuge; Gadus
macrocephalus
ID EASTERN BERING-SEA; CARIBBEAN SPINY LOBSTER; COD GADUS-MORHUA;
PANULIRUS-ARGUS; PACIFIC COD; AMERICAN LOBSTER; MICROHABITAT USE; KODIAK
ISLAND; SUMMER FOOD; ALASKA
AB Highly structured nursery habitats promote the survival of juvenile stages of many species by providing foraging opportunities and refuge from predators. Through integrated laboratory and field experiments, we demonstrate that nursery habitat structure affects survival and predator-prey interactions of red king crab Paralithodes camtschaticus. Crabs (<1 yr old [Age 0]; 8 to 10 mm carapace length [CL]) preferred complex biogenic habitats formed by structural invertebrates and macroalgae over structural mimics and sand in the absence of predators in laboratory experiments, yet they associated with any available structural habitat when fish predators were present. Survival was higher in the presence of complex habitat for Age 0 crabs (5 to 7.5 mm CL) with Pacific cod Gadus macrocephalus predators in the laboratory and for Age 0 (4 to 8 mm CL) and Age 1 (16 to 28 mm CL) crabs with fish and invertebrate predators in the field. Crab activity and refuge response behavior varied with crab stage and habitat. Age 0 crabs were cryptic, avoiding predators by associating with habitat structure or remaining motionless in the absence of structure, and were less likely to respond to an attack. In contrast, Age 1 crabs were more likely to respond to an attacking predator and were less likely to remain motionless in the absence of structural refuge, suggesting an ontogenetic shift in behavior. Complex habitats, cryptic behavior, and direct defense improve juvenile red king crab survival against certain predators, including demersal fishes.
C1 [Stoner, A. W.] NOAA, Fisheries Behav Ecol Program, Alaska Fisheries Sci Ctr, Natl Marine Fisheries Serv, Newport, OR 97365 USA.
[Pirtle, J. L.; Eckert, G. L.] Univ Alaska Fairbanks, Sch Fisheries & Ocean Sci, Juneau Ctr, Juneau, AK 99801 USA.
RP Pirtle, JL (reprint author), Univ New Hampshire, Ctr Coastal & Ocean Mapping, NOAA UNH Joint Hydrog Ctr, Durham, NH 03824 USA.
EM jpirtle@ccom.unh.edu
FU Alaska Sea Grant College Program; North Pacific Research Board Graduate
Student Research Award; Alaska Sea Grant; NOAA Aquaculture Program
FX Funding for the dissertation research of J.L.P. at the University of
Alaska Fairbanks (UAF) was provided by the Alaska Sea Grant College
Program and the North Pacific Research Board Graduate Student Research
Award. The Alutiiq Pride Shellfish Hatchery, Seward, Alaska, provided
crabs for the present study as part of the Alaska King Crab Research,
Rehabilitation, and Biology Program funded by Alaska Sea Grant and the
NOAA Aquaculture Program. We thank the following individuals who
assisted with laboratory and field research: M. Catterson, B. Daly, S.
Haines, M. Hobbs, N. Hobbs, P. Iseri, M. Johanssen, L. Loegers, D.
Okamoto, M. Ottmar, J. Pirtle Sr., J. Richar, T. Smith, T. Stevens, J.
Swingle, J. Sylvan, S. Tamone, R. Titgen, J. Unrein, J. Webb, and M.
Westphal. Helpful criticisms of the manuscript were provided by T.
Quinn, J. Reynolds, B. Tissot, D. Woodby, and anonymous reviewers. UAF
IACUC approval was obtained for this research (131463-1; 130962-1).
NR 71
TC 13
Z9 13
U1 3
U2 31
PU INTER-RESEARCH
PI OLDENDORF LUHE
PA NORDBUNTE 23, D-21385 OLDENDORF LUHE, GERMANY
SN 0171-8630
J9 MAR ECOL PROG SER
JI Mar. Ecol.-Prog. Ser.
PY 2012
VL 465
BP 169
EP 184
DI 10.3354/meps09883
PG 16
WC Ecology; Marine & Freshwater Biology; Oceanography
SC Environmental Sciences & Ecology; Marine & Freshwater Biology;
Oceanography
GA 014HR
UT WOS:000309366300014
ER
PT J
AU Driggers, WB
Campbell, MD
Hoffmayer, ER
Ingram, GW
AF Driggers, William B., III
Campbell, Matthew D.
Hoffmayer, Eric R.
Ingram, G. Walter, Jr.
TI Feeding chronology of six species of carcharhinid sharks in the western
North Atlantic Ocean as inferred from longline capture data
SO MARINE ECOLOGY PROGRESS SERIES
LA English
DT Article
DE Chondrichthyes; Elasmobranch; Carcharhinidae; Diel behavior
ID YOUNG SANDBAR SHARKS; NEGAPRION-BREVIROSTRIS; GALEOCERDO-CUVIER;
CHINCOTEAGUE BAY; STOMACH CONTENTS; PLUMBEUS PISCES; PRIONACE-GLAUCA;
SPHYRNA-LEWINI; DIEL BEHAVIOR; LEMON SHARKS
AB Time-at-capture data for 6 species of carcharhinid sharks were collected during 2692 fishery-independent longline sets conducted in the western North Atlantic Ocean from 1995 through 2009. As operations occurred continuously throughout the diel cycle, time-at-capture data were used as a proxy for natural feeding behavior to examine the diel feeding chronology of blacknose Carcharhinus acronotus, spinner C. brevipinna, bull C. leucas, blacktip C. limbatus, sandbar C. plumbeus, and Atlantic sharpnose Rhizoprionodon terraenovae sharks. All 6 species were collected during all hours of the diel cycle; however, application of circular statistics revealed that spinner, bull, blacktip and sandbar sharks increased their feeding activity during nocturnal hours. Atlantic sharpnose and blacknose sharks exhibited no significant directedness in time-of-capture, indicating that these 2 species lack distinct feeding patterns. The species-specific differences in feeding chronologies of the sharks examined demonstrate that broad generalizations concerning the feeding behavior of sharks are not appropriate.
C1 [Driggers, William B., III; Campbell, Matthew D.; Hoffmayer, Eric R.; Ingram, G. Walter, Jr.] SW Fisheries Sci Ctr, Natl Marine Fisheries Serv, Mississippi Labs, Pascagoula, MS 39567 USA.
RP Driggers, WB (reprint author), SW Fisheries Sci Ctr, Natl Marine Fisheries Serv, Mississippi Labs, Pascagoula, MS 39567 USA.
EM william.driggers@noaa.gov
OI Campbell, Matthew/0000-0002-0087-5291
NR 35
TC 5
Z9 5
U1 3
U2 24
PU INTER-RESEARCH
PI OLDENDORF LUHE
PA NORDBUNTE 23, D-21385 OLDENDORF LUHE, GERMANY
SN 0171-8630
EI 1616-1599
J9 MAR ECOL PROG SER
JI Mar. Ecol.-Prog. Ser.
PY 2012
VL 465
BP 185
EP 192
DI 10.3354/meps09901
PG 8
WC Ecology; Marine & Freshwater Biology; Oceanography
SC Environmental Sciences & Ecology; Marine & Freshwater Biology;
Oceanography
GA 014HR
UT WOS:000309366300015
ER
PT J
AU Croll, DA
Newton, KM
Weng, K
Galvan-Magana, F
O'Sullivan, J
Dewar, H
AF Croll, Donald A.
Newton, Kelly M.
Weng, Kevin
Galvan-Magana, Felipe
O'Sullivan, John
Dewar, Heidi
TI Movement and habitat use by the spine-tail devil ray in the Eastern
Pacific Ocean
SO MARINE ECOLOGY PROGRESS SERIES
LA English
DT Article
DE Mobulid; Mobula japanica; Manta ray; Elasmobranch; Baja California; Gulf
of California; Conservation
ID BAJA-CALIFORNIA-SUR; GULF-OF-CALIFORNIA; MARINE PREDATOR MOVEMENTS;
SEA-SURFACE TEMPERATURE; ATLANTIC BLUEFIN TUNA; RHINCODON-TYPUS; WHALE
SHARKS; NYCTIPHANES SIMPLEX; GROWTH PRODUCTION; MOBULID RAYS
AB The devil-ray family Mobulidae (order Myliobatiformes) comprises wide-ranging, pelagic batoids, but little is known about their basic ecology. We present the first data on the long-distance movement of mobulid devil rays. We attached pop-up archival satellite tags to 13 individuals of the spine-tail devil ray Mobula japanica (disk width 199.5 +/- 30.0 cm; mean +/- SD) off Baja California Sur to examine their habitat movement patterns. Tags remained on the rays for 83 +/- 52 d (mean +/- SD). Although their primary prey undergo diel migrations from depths > 100 m during the day to the surface at night, tagged individuals spent the majority of their time (89.5 +/- 3.1% during the day and 96.8 +/- 3.5% at night; mean +/- SD) near the surface at a depth of <= 50 m in 20 to 30 C water. Thus, M. japanica likely forages at night and remains near the surface during the day, where warmer water temperatures likely confer a physiological advantage. Most (8 of 13) individuals moved from the tagging location in the southern Gulf of California to the Pacific coast of Baja California Sur, tracking published records of seasonal patterns in euphausiid abundance, similar to other top predators in the region. The depths and geographic regions occupied by M. japanica coincide with the focus of artisanal and industrial fisheries. This overlap with fisheries, when combined with the delayed maturity and low reproductive rates of devil rays, raises concerns of potentially damaging high bycatch mortality.
C1 [Croll, Donald A.; Newton, Kelly M.] Univ Calif Santa Cruz, Dept Ecol & Evolutionary Biol, Santa Cruz, CA 95060 USA.
[Weng, Kevin] Univ Hawaii Manoa, Pelag Fisheries Res Program, Honolulu, HI 96822 USA.
[Galvan-Magana, Felipe] Ctr Interdisciplinario Ciencias Marinas, La Paz 23096, Baya California, Mexico.
[O'Sullivan, John] Monterey Bay Aquarium, Monterey, CA 93950 USA.
[Dewar, Heidi] SW Fisheries Sci Ctr, La Jolla, CA 92037 USA.
RP Croll, DA (reprint author), Univ Calif Santa Cruz, Dept Ecol & Evolutionary Biol, 100 Shaffer Rd, Santa Cruz, CA 95060 USA.
EM croll@biology.ucsc.edu
RI Weng, Kevin Chi-Ming/C-4709-2013
OI Weng, Kevin Chi-Ming/0000-0002-7069-7152
FU Monterey Bay Aquarium; Instituto Politecnico Nacional (COFAA); Instituto
Politecnico Nacional (EDI)
FX We thank the Cuevas family, particularly Juan Pablo, Felipe and Juan, of
El Pardito Island, Baja California Sur, for their field assistance,
friendship and hospitality. Juan Jesus Lucero and James Schultz provided
additional logistical support and hospitality. Dr. Ellen Freund provided
early conceptual assistance for the study. Dr. Steven Teo provided
important assistance for data analysis. Dr. Bernie Tershy provided
valuable manuscript re view. The Monterey Bay Aquarium provided funding
for the study. F.G.-M. received fellowships from Instituto Politecnico
Nacional (COFAA and EDI). The study was conducted under Mexican
CONAPESCA-SAGARPA permit no. DGOPA.02904.260410.-1490 and no.
160401-613-03 to F.G.-M.
NR 52
TC 10
Z9 11
U1 3
U2 36
PU INTER-RESEARCH
PI OLDENDORF LUHE
PA NORDBUNTE 23, D-21385 OLDENDORF LUHE, GERMANY
SN 0171-8630
J9 MAR ECOL PROG SER
JI Mar. Ecol.-Prog. Ser.
PY 2012
VL 465
BP 193
EP 200
DI 10.3354/meps09900
PG 8
WC Ecology; Marine & Freshwater Biology; Oceanography
SC Environmental Sciences & Ecology; Marine & Freshwater Biology;
Oceanography
GA 014HR
UT WOS:000309366300016
ER
PT J
AU Hitchman, SM
Reyns, NB
Thompson, AR
AF Hitchman, Sean M.
Reyns, Nathalie B.
Thompson, Andrew R.
TI Larvae define spawning habitat of bocaccio rockfish Sebastes paucispinis
within and around a large southern California marine reserve
SO MARINE ECOLOGY PROGRESS SERIES
LA English
DT Article
DE Depth; Essential fish habitat; Larval fish; Marine protected area;
Larval production
ID PELAGIC JUVENILE ROCKFISHES; CURRENT SYSTEM; POPULATION-DYNAMICS; DEPTH
DISTRIBUTIONS; FISH TRANSPORT; GROWTH; BIGHT; AGE; ASSEMBLAGES; STATE
AB Identifying sources of larval production and subsequent dispersal paths is critical for evaluating the efficacy of marine protected areas. We assessed whether the Cowcod Conservation Area (CCA), the largest oceanic reserve in the Southern California Bight (SCB), established to conserve cowcod Sebastes levis, protects essential spawning habitat of another overfished rock-fish, bocaccio S. paucispinis. To this end we investigated relationships between age-specific (recently hatched, preflexion and postflexion) larval distribution and abundance, environmental indicators (temperature, chlorophyll a), and depth between 2002 and 2004. Larval presence was consistently higher in the CCA than in surrounding areas of the SCB. Abundances of bocaccio larvae from all size classes peaked in 2004, which had relatively low sea surface temperature and high chlorophyll a. Depth and sea surface temperature or chlorophyll a were significantly related to the presence of recently hatched larvae, which were most common in cooler western CCA waters where chlorophyll a tended to be highest. In contrast, later stage larvae were not significantly related to depth, indicating that they had been advected from natal locations. Examination of current patterns and the distribution of older larvae suggested that the direction of larval transport varied among years, with mostly northwestward transport in 2002, a cyclonic recirculation feature that may have retained larvae within the CCA in 2003, and southwestward transport in 2004. These results demonstrate that spatial and temporal oceanographic heterogeneity affect larval distribution and transport in this region. We conclude that the CCA protects essential bocaccio spawning habitat and is an important source of bocaccio production in the SCB.
C1 [Hitchman, Sean M.; Reyns, Nathalie B.] Univ San Diego, Dept Marine Sci & Environm Studies, San Diego, CA 92110 USA.
[Thompson, Andrew R.] NOAA, SW Fisheries Sci Ctr, La Jolla, CA 92037 USA.
RP Reyns, NB (reprint author), Univ San Diego, Dept Marine Sci & Environm Studies, San Diego, CA 92110 USA.
EM nreyns@sandiego.edu
RI Reyns, Nathalie/P-1242-2016
OI Reyns, Nathalie/0000-0002-9967-0199
FU Hannon Fellowship
FX Data were collected and provided by the Southwest Fisheries Science
Center and the crew of the RV 'New Horizon'. We are particularly
grateful to S. Charter, S. McClatchie, R. Vetter, W. Watson, and for
their input, imparting their knowledge about the ecology of larval
fishes, and teaching larval fish identification. Z. Yin helped with
geographic information systems and S. Searcy assisted with otolith
ageing. This manuscript was greatly improved by comments from Z. Yin, S.
Searcy, W. Watson and 4 anonymous reviewers. Financial support was
provided by the Hannon Fellowship administered by the University of San
Diego.
NR 75
TC 3
Z9 3
U1 4
U2 23
PU INTER-RESEARCH
PI OLDENDORF LUHE
PA NORDBUNTE 23, D-21385 OLDENDORF LUHE, GERMANY
SN 0171-8630
J9 MAR ECOL PROG SER
JI Mar. Ecol.-Prog. Ser.
PY 2012
VL 465
BP 227
EP +
DI 10.3354/meps09926
PG 22
WC Ecology; Marine & Freshwater Biology; Oceanography
SC Environmental Sciences & Ecology; Marine & Freshwater Biology;
Oceanography
GA 014HR
UT WOS:000309366300019
ER
PT J
AU Yu, H
Bi, HS
Burke, B
Lamb, J
Peterson, W
AF Yu, Hao
Bi, Hongsheng
Burke, Brian
Lamb, Jesse
Peterson, William
TI Spatial variations in the distribution of yearling spring Chinook salmon
off Washington and Oregon using COZIGAM analysis
SO MARINE ECOLOGY PROGRESS SERIES
LA English
DT Article
DE Juvenile salmon; Yearling Chinook; Chlorophyll; Zero-inflated
generalized additive model; Alongshore ocean current
ID NORTHERN CALIFORNIA CURRENT; COHO ONCORHYNCHUS-KISUTCH; GENERALIZED
ADDITIVE-MODELS; ZERO-INFLATED POISSON; RIVER SOCKEYE-SALMON;
LIFE-HISTORY; BINOMIAL REGRESSION; STATISTICAL-MODELS; MARINE SURVIVAL;
COUNT DATA
AB Yearling Chinook salmon Oncorhynchus tshawytscha were sampled off Washington and Oregon, USA, along with environmental factors, every June from 1998 to 2010. The abundance of yearling Chinook salmon varied over space with a high proportion of zero catches. Positive catches were more numerous north of the Columbia River, likely because most yearling Chinook salmon turn north after leaving the Columbia River. Using the latitude of the Columbia River mouth as a geographical border, the survey area was divided into 2 regions: north and south of the Columbia River. We hypothesized that (1) the spatial distribution pattern within each region was related to local environmental factors and (2) the difference between north and south was related to large-scale ocean processes. A constrained zero-inflated generalized additive model (COZIGAM) was applied to examine the non-linear relationships between juvenile salmon abundance and environmental factors. Results from the COZIGAM suggested that water temperature, chlorophyll a (chl a) concentration, copepod biomass and spatial factors were significantly correlated with the density of salmon in the northern region, and only chl a concentration was correlated significantly with yearling Chinook density in the southern region. The difference between the abundances north and south of the Columbia River was significantly correlated with alongshore ocean currents, with weaker alongshore currents leading to greater difference between north and south. Results suggest that salmon distribution is determined not only by standard habitat parameters (local biotic and abiotic factors) but by ocean conditions such as the strength of alongshore coastal currents.
C1 [Yu, Hao; Bi, Hongsheng] Univ Maryland, Ctr Environm Sci, Chesapeake Biol Lab, Solomons, MD 20688 USA.
[Burke, Brian] NOAA Fisheries, NW Fisheries Sci Ctr, Seattle, WA 98112 USA.
[Lamb, Jesse; Peterson, William] NOAA Fisheries Newport Stn, Hatfield Marine Sci Ctr, Newport, OR 97365 USA.
RP Yu, H (reprint author), Univ Maryland, Ctr Environm Sci, Chesapeake Biol Lab, Solomons, MD 20688 USA.
EM hyu@cbl.umces.edu
RI Bi, Hongsheng/B-9409-2012
FU NASA; Bonneville Power Administration
FX This synthesis research was supported by NASA. Data collection was
funded by the Bonneville Power Administration. We also acknowledge the
people who contributed substantially to data collection and processing:
B. Beckman, P. Bentley, C. Bucher, R. Emmett, J. Fisher, T. Guy, S.
Hinton, C. Morgan, L. Weitkamp and J. Zamon.
NR 51
TC 10
Z9 10
U1 3
U2 22
PU INTER-RESEARCH
PI OLDENDORF LUHE
PA NORDBUNTE 23, D-21385 OLDENDORF LUHE, GERMANY
SN 0171-8630
EI 1616-1599
J9 MAR ECOL PROG SER
JI Mar. Ecol.-Prog. Ser.
PY 2012
VL 465
BP 253
EP 265
DI 10.3354/meps09909
PG 13
WC Ecology; Marine & Freshwater Biology; Oceanography
SC Environmental Sciences & Ecology; Marine & Freshwater Biology;
Oceanography
GA 014HR
UT WOS:000309366300021
ER
PT J
AU Corbett, SC
Moser, ML
Dittman, AH
AF Corbett, Stephen C.
Moser, Mary L.
Dittman, Andrew H.
TI Experimental Evaluation of Adult Spring Chinook Salmon Radio-Tagged
during the Late Stages of Spawning Migration
SO NORTH AMERICAN JOURNAL OF FISHERIES MANAGEMENT
LA English
DT Editorial Material
ID SOCKEYE-SALMON; TELEMETRY TRANSMITTERS; COLUMBIA RIVER; REGURGITATION
RATES; ONCORHYNCHUS-NERKA; YAKIMA RIVER; MORTALITY; SNAKE; STEELHEAD;
ESCAPEMENT
AB We conducted an experiment to assess the effects of radio-tagging on adult spring Chinook salmon Oncorhynchus tshawytscha during the late stages of their spawning migration. Fish were captured at Roza Dam, Yakima River, Washington (river kilometer 208). Each fish had a radio tag inserted into the stomach via the esophagus and was then transported to a raceway and held for 50 d to assess survival. In the same raceway we also held a control group that was handled but not tagged and a group with externally attached transmitters. Survival of fish with gastrically implanted radio tags was low (10%), while 70% of controls and 90% of fish with externally mounted tags survived to the end of the experiment. Postmortem dissections revealed that after implantation, some radio tags had migrated from the stomach position to the posterior digestive tract and peritoneum. Fish from all treatments exhibited some level of tissue degeneration of the gastrointestinal tract. Gastric implantation should be used with caution, particularly for fish at vulnerable life stages. For spring Chinook salmon in the Columbia River basin, tagging with gastric implants should be conducted early in the freshwater migration to improve survival and reduce tag effects.
C1 [Corbett, Stephen C.] Pacific States Marine Fisheries Commiss, Portland, OR 97202 USA.
[Moser, Mary L.; Dittman, Andrew H.] NOAA, Natl Marine Fisheries Serv, NW Fisheries Sci Ctr, Seattle, WA 98112 USA.
RP Corbett, SC (reprint author), Pacific States Marine Fisheries Commiss, 205 SE Spokane St,Suite 100, Portland, OR 97202 USA.
EM steve.corbett@noaa.gov
NR 35
TC 3
Z9 3
U1 2
U2 16
PU TAYLOR & FRANCIS INC
PI PHILADELPHIA
PA 325 CHESTNUT ST, SUITE 800, PHILADELPHIA, PA 19106 USA
SN 0275-5947
J9 N AM J FISH MANAGE
JI North Am. J. Fish Manage.
PY 2012
VL 32
IS 5
BP 853
EP 858
DI 10.1080/02755947.2012.700902
PG 6
WC Fisheries
SC Fisheries
GA 014PN
UT WOS:000309388200006
ER
PT J
AU Pipal, KA
Notch, JJ
Hayes, SA
Adams, PB
AF Pipal, Kerrie A.
Notch, Jeremy J.
Hayes, Sean A.
Adams, Peter B.
TI Estimating Escapement for a Low-Abundance Steelhead Population Using
Dual-Frequency Identification Sonar (DIDSON)
SO NORTH AMERICAN JOURNAL OF FISHERIES MANAGEMENT
LA English
DT Article
ID IMAGING SONAR; CALIFORNIA; PRECISION; ACCURACY; BEHAVIOR
AB Estimating the escapement of small populations of steelhead Oncorhynchus mykiss (ocean-migrating rainbow trout) is challenging and requires innovative methods. Difficulties arise from rare and episodic occurrence of individuals, high turbidity levels during migration, and the need to minimize jeopardy to the fish, which have led to a lack of population estimates, especially in California. Here we show that dual-frequency identification sonar (DIDSON) can be used to produce escapement estimates for a small steelhead population in Scott Creek, Santa Cruz County, California, with virtually no impact on the fish. The DIDSON uses sound to form near-video quality images and passively monitors fish without the need to handle them or constrict passage. We deployed a DIDSON and recorded steelhead passage over three spawning seasons (2008-2010). We used a decision support tool to analyze DIDSON images and compared the resulting estimates (153, 57, and 84) with raw weir counts (50, 23, and 40), mark-recapture estimates (293 +/- 9, 126 +/- 12, and 109 +/- 34) generated over the entire migration period, and adjusted mark-recapture estimates (201, 74, and 85), which coincided with the period of DIDSON deployment. The DIDSON and weir estimates were restricted to a smaller sampling window due to the installation of downstream migrant traps causing increased incidences of milling fish that interfered with the DIDSON results late in the migration season. The DIDSON estimates were two to three times higher than weir estimates and 23% to 55% less than the full-season mark-recapture estimates. The adjusted mark-recapture estimates followed the same trends as the full-season mark-recapture estimates and were correlated with the DIDSON estimates. We conclude that DIDSON is an effective tool to generate steelhead escapement estimates, but it is important to collect data over the entire migration season and to consider fish behavior and potential species identification issues during analysis.
C1 [Pipal, Kerrie A.; Notch, Jeremy J.; Hayes, Sean A.; Adams, Peter B.] NOAA, Natl Marine Fisheries Serv, SW Fisheries Sci Ctr, Fisheries Ecol Div, Santa Cruz, CA 95060 USA.
RP Pipal, KA (reprint author), NOAA, Natl Marine Fisheries Serv, SW Fisheries Sci Ctr, Fisheries Ecol Div, 110 Shaffer Rd, Santa Cruz, CA 95060 USA.
EM kerrie.pipal@noaa.gov
FU Joint Institute of Marine Observations grant; National Oceanic and
Atmospheric Administration; University of California-Santa Cruz;
Fisheries Restoration Grant Program
FX Funding for this study was provided by a Joint Institute of Marine
Observations grant between the National Oceanic and Atmospheric
Administration and the University of California-Santa Cruz, and the
Fisheries Restoration Grant Program. Field assistance was provided by
Mark Jessop, Lewis Barnett, Alison Collins, Michael Feldman, Morgan
Bond, Danielle Frechette, Andrew Jones, Jeff Perez, Ann-Marie Osterback,
Nicolas Retford, and Andrew Sobieraj. Landowner access was provided by
California Polytechnic State University's Swanton Pacific Ranch. We
appreciate insightful comments from David Boughton, Dave Rundio, and
Steve Lindley on earlier drafts of this manuscript. We are also grateful
to the associate editor, two anonymous reviewers, and Patrick Connolly
for providing constructive comments that greatly improved the
manuscript. Reference to trade names does not imply endorsement by the
U.S. Government.
NR 38
TC 5
Z9 5
U1 1
U2 18
PU TAYLOR & FRANCIS INC
PI PHILADELPHIA
PA 325 CHESTNUT ST, SUITE 800, PHILADELPHIA, PA 19106 USA
SN 0275-5947
J9 N AM J FISH MANAGE
JI North Am. J. Fish Manage.
PY 2012
VL 32
IS 5
BP 880
EP 893
DI 10.1080/02755947.2012.697096
PG 14
WC Fisheries
SC Fisheries
GA 014PN
UT WOS:000309388200010
ER
PT J
AU Schueller, AM
Fayram, AH
Hansen, MJ
AF Schueller, Amy M.
Fayram, Andrew H.
Hansen, Michael J.
TI Simulated Equilibrium Walleye Population Density under Static and
Dynamic Recreational Angling Effort
SO NORTH AMERICAN JOURNAL OF FISHERIES MANAGEMENT
LA English
DT Article
ID NORTHERN WISCONSIN LAKES; TROUT SALVELINUS-NAMAYCUSH; MINIMUM LENGTH
LIMIT; ACTIVE MANAGEMENT; FISH POPULATIONS; DEPENDENT GROWTH; ESCANABA
LAKE; ANGLER EFFORT; BAG LIMIT; FISHERIES
AB Understanding the dynamics of angling effort and how fish populations are affected by angler effort is an important and often unappreciated component of fisheries management. Our objective was to determine the extent to which angling-induced mortality limits walleye Sander vitreus population density in northern Wisconsin lakes. We developed a simulation model to evaluate the effects on long-term equilibrium walleye population density caused by effort limitations, density-dependent angling effort, and angling regulations. Equilibrium density was limited by angling effort when effort was held constant but was generally lower when effort was density dependent. Equilibrium density ranged from 3.46 to 21.79 adults/ha when effort was density dependent, similar to the observed median density in lakes sustained by natural reproduction (8.7 adults/ha). Median equilibrium density was 23.3 adults/ha when effort was zero. Equilibrium density was higher when harvest was regulated by a minimum length limit as opposed to no length limit and with no postrelease mortality than with postrelease mortality. Population collapse was more likely and equilibrium density was lower when the population density and effort/ha relationship was strongest. Because the observed relationship between adult walleye population density and effort/ha was weaker, we conclude that open-access walleye fisheries in northern Wisconsin are generally self-regulating. However, populations likely persist at lower population densities than would be expected if angling effort were limited to lower levels than those currently observed. Our results are intuitive; however, they suggest that density increases may be on the order of 100% when effort is severely restricted compared with open-access fisheries with unlimited effort. Other fish species may experience different expected density increases with restricted angler effort depending on a number of factors, but our results suggest that population density changes can be dramatic and that similar modeling exercises may be useful to managers of other fish species if increasing density is of interest.
C1 [Schueller, Amy M.] Natl Marine Fisheries Serv, SE Fisheries Sci Ctr, Beaufort Lab, Beaufort, NC 28516 USA.
[Fayram, Andrew H.] Bur Fisheries Management, Wisconsin Dept Nat Resources, Madison, WI 53707 USA.
[Hansen, Michael J.] Univ Wisconsin, Coll Nat Resources, Stevens Point, WI 54481 USA.
RP Schueller, AM (reprint author), Natl Marine Fisheries Serv, SE Fisheries Sci Ctr, Beaufort Lab, 101 Pivers Isl Rd, Beaufort, NC 28516 USA.
EM amy.schueller@noaa.gov
OI Hansen, Michael/0000-0001-8522-3876
FU National Marine Fisheries Service; Federal Aid in Sportfish Restoration
program
FX We thank Doug Beard for his initial discussions on this work. This work
was supported by the National Marine Fisheries Service and the Federal
Aid in Sportfish Restoration program. In addition, we thank the
Wisconsin Department of Natural Resources and the Great Lakes Indian
Fish and Wildlife Commission staff, who painstakingly collected the data
utilized in this analysis. Finally, we thank Paul Conn and Jim Waters
for their comments on earlier drafts of this manuscript.-
NR 57
TC 3
Z9 3
U1 1
U2 13
PU TAYLOR & FRANCIS INC
PI PHILADELPHIA
PA 325 CHESTNUT ST, SUITE 800, PHILADELPHIA, PA 19106 USA
SN 0275-5947
J9 N AM J FISH MANAGE
JI North Am. J. Fish Manage.
PY 2012
VL 32
IS 5
BP 894
EP 904
DI 10.1080/02755947.2012.705258
PG 11
WC Fisheries
SC Fisheries
GA 014PN
UT WOS:000309388200011
ER
PT J
AU Lee, MY
AF Lee, Min-Yang
TI Examining Bargaining Power in the Northeast Multispecies Days-at-Sea
Market
SO NORTH AMERICAN JOURNAL OF FISHERIES MANAGEMENT
LA English
DT Article
ID QUANTILE REGRESSION; PRICE; FISHERIES; DEMAND
AB The Northeast U.S. groundfish fishery is economically large and culturally important. Between 2004 and 2009, the primary management control used in this fishery was a tradable input allowance system known as Days at Sea (DAS); however, many regulatory institutions limited trading. These barriers included a set of "conservation equivalency" restrictions based on length and horsepower that were explicitly designed to restrain increases in the fishing power of the fleet. Despite these limitations, trade in the DAS market was fairly robust; by 2008, over 40% of all used DAS were traded. This research uses ordinary least squares and quantile regression to examine the effects of these institutional limitations on the bargaining power of traders in this market. The conservation equivalency restrictions adversely impacted the bargaining power of both small sellers and large buyers of DAS. Despite these bargaining power effects, prices were responsive to changes in aggregate supply and productivity in economically reasonable ways. Finally, the downward intrayear trend in price is consistent with decay in the time value component of financial options.
C1 Natl Ocean & Atmospher Adm Fisheries, NE Fisheries Sci Ctr, Woods Hole, MA 02543 USA.
RP Lee, MY (reprint author), Natl Ocean & Atmospher Adm Fisheries, NE Fisheries Sci Ctr, 166 Water St, Woods Hole, MA 02543 USA.
EM min-yang.lee@noaa.gov
NR 35
TC 0
Z9 0
U1 2
U2 13
PU TAYLOR & FRANCIS INC
PI PHILADELPHIA
PA 325 CHESTNUT ST, SUITE 800, PHILADELPHIA, PA 19106 USA
SN 0275-5947
J9 N AM J FISH MANAGE
JI North Am. J. Fish Manage.
PY 2012
VL 32
IS 5
BP 1017
EP 1031
DI 10.1080/02755947.2012.707633
PG 15
WC Fisheries
SC Fisheries
GA 014PN
UT WOS:000309388200023
ER
PT J
AU Krasnopolsky, V
Lin, Y
AF Krasnopolsky, VladimirM.
Lin, Ying
TI A Neural Network Nonlinear Multimodel Ensemble to Improve Precipitation
Forecasts over Continental US
SO ADVANCES IN METEOROLOGY
LA English
DT Article
ID SEASONAL CLIMATE; PREDICTION; UNCERTAINTIES; WEATHER; ECMWF
AB A novel multimodel ensemble approach based on learning from data using the neural network (NN) technique is formulated and applied for improving 24-hour precipitation forecasts over the continental US. The developed nonlinear approach allowed us to account for nonlinear correlation between ensemble members and to produce "optimal" forecast represented by a nonlinear NN ensemble mean. The NN approach is compared with the conservative multi-model ensemble, with multiple linear regression ensemble approaches, and with results obtained by human forecasters. The NN multi-model ensemble improves upon conservative multi-model ensemble and multiple linear regression ensemble, it (1) significantly reduces high bias at low precipitation level, (2) significantly reduces low bias at high precipitation level, and (3) sharpens features making them closer to the observed ones. The NN multi-model ensemble performs at least as well as human forecasters supplied with the same information. The developed approach is a generic approach that can be applied to other multi-model ensemble fields as well as to single model ensembles.
C1 [Krasnopolsky, VladimirM.; Lin, Ying] NOAA, Natl Ctr Environm Predict, College Pk, MD 20740 USA.
[Krasnopolsky, VladimirM.] Univ Maryland, Earth Syst Sci Interdisciplinary Ctr, College Pk, MD 20740 USA.
RP Krasnopolsky, V (reprint author), NOAA, Natl Ctr Environm Predict, College Pk, MD 20740 USA.
EM vladimir.krasnopolsky@noaa.gov
NR 24
TC 6
Z9 6
U1 0
U2 3
PU HINDAWI PUBLISHING CORPORATION
PI NEW YORK
PA 410 PARK AVENUE, 15TH FLOOR, #287 PMB, NEW YORK, NY 10022 USA
SN 1687-9309
J9 ADV METEOROL
JI Adv. Meteorol.
PY 2012
AR 649450
DI 10.1155/2012/649450
PG 11
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 006CB
UT WOS:000308795800001
ER
PT J
AU Kumari, H
Kline, SR
Dennis, CL
Mossine, AV
Paul, RL
Deakyne, CA
Atwood, JL
AF Kumari, Harshita
Kline, Steven R.
Dennis, Cindi L.
Mossine, Andrew V.
Paul, Rick L.
Deakyne, Carol A.
Atwood, Jerry L.
TI Solution-Phase and Magnetic Approach towards Understanding Iron Gall
Ink-like Nanoassemblies
SO ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
LA English
DT Article
DE iron; magnetic properties; pyrogallol[4]arenes; small-angle neutron
scattering (SANS); supramolecular chemistry
ID NANOCAPSULES; FERROCENE; CAPSULES; KINETICS; ACID
C1 [Kline, Steven R.] NIST, NIST Ctr Neutron Res, Gaithersburg, MD 20899 USA.
[Kumari, Harshita; Mossine, Andrew V.; Deakyne, Carol A.; Atwood, Jerry L.] Univ Missouri, Dept Chem, Columbia, MO 65211 USA.
[Paul, Rick L.; Deakyne, Carol A.] NIST, Mat Measurement Lab, Gaithersburg, MD 20899 USA.
RP Kline, SR (reprint author), NIST, NIST Ctr Neutron Res, 100 Bur Dr, Gaithersburg, MD 20899 USA.
EM steven.kline@nist.gov; cindi.dennis@nist.gov; deakynec@missouri.edu;
atwoodj@missouri.edu
FU NSF [DMR-0944772]; NIBIB [T21 EB004822]
FX We thank NSF for support of this work (J.L.A.) and NIBIB for training
grant T21 EB004822 (A.V.M.). This work utilized facilities supported in
part by the NSF under Agreement No. DMR-0944772 (S.R.K.).
NR 29
TC 11
Z9 11
U1 4
U2 15
PU WILEY-V C H VERLAG GMBH
PI WEINHEIM
PA BOSCHSTRASSE 12, D-69469 WEINHEIM, GERMANY
SN 1433-7851
J9 ANGEW CHEM INT EDIT
JI Angew. Chem.-Int. Edit.
PY 2012
VL 51
IS 37
BP 9263
EP 9266
DI 10.1002/anie.201204776
PG 4
WC Chemistry, Multidisciplinary
SC Chemistry
GA 000PQ
UT WOS:000308399500008
PM 22890724
ER
PT J
AU Goto, D
Lindelof, K
Fanslow, DL
Ludsin, SA
Pothoven, SA
Roberts, JJ
Vanderploeg, HA
Wilson, AE
Hook, TO
AF Goto, Daisuke
Lindelof, Kara
Fanslow, David L.
Ludsin, Stuart A.
Pothoven, Steven A.
Roberts, James J.
Vanderploeg, Henry A.
Wilson, Alan E.
Hoeoek, Tomas O.
TI Indirect consequences of hypolimnetic hypoxia on zooplankton growth in a
large eutrophic lake
SO AQUATIC BIOLOGY
LA English
DT Article
DE Anoxia; RNA:DNA ratio; Food web; Great Lakes; Eutrophication;
Zooplankton ecology
ID DIEL VERTICAL MIGRATION; LOW DISSOLVED-OXYGEN; FRESH-WATER; TRADE-OFFS;
DAPHNIA-PULICARIA; ACARTIA-BIFILOSA; RNA/DNA RATIOS; CLIMATE-CHANGE;
NUCLEIC-ACIDS; BODY-SIZE
AB Diel vertical migration (DVM) of some zooplankters in eutrophic lakes is often compressed during peak hypoxia. To better understand the indirect consequences of seasonal hypolimnetic hypoxia, we integrated laboratory-based experimental and field-based observational approaches to quantify how compressed DVM can affect growth of a cladoceran, Daphnia mendotae, in central Lake Erie, North America. To evaluate hypoxia tolerance of D. mendotae, we conducted a survivorship experiment with varying dissolved oxygen concentrations, which demonstrated high sensitivity of D. mendotae to hypoxia (<= 2 mg O-2 l(-1)), supporting the field observations of their behavioral avoidance of the hypoxic hypolimnion. To investigate the effect of temporary changes in habitat conditions associated with the compressed DVM, we quantified the growth of D. mendotae, using a 3 (food quantity) x 2 (temperature) factorial design laboratory experiment. Neither food quantity nor temperature affected short-term growth in body length of D. mendotae. However, D. mendotae RNA content (an index of short-term condition) decreased under starvation, indicating an immediate response of short-term feeding on condition. We further evaluated the effect of hypoxia-induced upward shifts in vertical distribution by quantifying the RNA content of D. mendotae from central Lake Erie before and during peak hypoxia. Despite high temperature and food quantity in the upper water column, RNA content in field-collected D. mendotae remained low during peak hypoxia. Furthermore, D. mendotae collected during peak hypoxia consisted of only small-bodied (x measurements and from Robin Weber for CO and
O3 measurements during BEARPEX09 study. We also acknowledge
William Stockwell and Wendy Goliff for the RACM2 mechanism. We thank
Sierra Pacific Industries for the use of their land and the University
of California, Berkeley, Center for Forestry, Blodgett Forest Research
Station for cooperation in facilitating this research. We acknowledge
the NSF Atmospheric Chemistry Program for the following grants: #0849475
(WHB); #0922562 (AHG); #0852406 (FNK); #0934408 (POW, JDC, and MRB).
NR 64
TC 88
Z9 88
U1 7
U2 86
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1680-7316
J9 ATMOS CHEM PHYS
JI Atmos. Chem. Phys.
PY 2012
VL 12
IS 17
BP 8009
EP 8020
DI 10.5194/acp-12-8009-2012
PG 12
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 005MF
UT WOS:000308753800010
ER
PT J
AU Ward, JW
Loth, MA
Kline, RJ
Coll, M
Ocal, C
Anthony, JE
Jurchescu, OD
AF Ward, Jeremy W.
Loth, Marsha A.
Kline, R. Joseph
Coll, Mariona
Ocal, Carmen
Anthony, John E.
Jurchescu, Oana D.
TI Tailored interfaces for self-patterning organic thin-film transistors
SO JOURNAL OF MATERIALS CHEMISTRY
LA English
DT Article
ID FIELD-EFFECT TRANSISTORS; ELECTRONIC-PROPERTIES; ASSEMBLED MONOLAYERS;
WORK FUNCTION; SEMICONDUCTORS; PERFORMANCE; PENTACENE; HETEROACENES;
MORPHOLOGY; STABILITY
AB Patterning organic thin-film transistors (OTFTs) is critical in achieving high electronic performance and low power consumption. We report on a high-yield, low-complexity patterning method based on exploiting the strong tendency of halogen-substituted organic semiconductors to crystallize along chemically tailored interfaces. We demonstrate that the organic semiconductor molecules self-align on the contacts, when the halogen-halogen interaction is allowed by the chemical structures and conformations of the self-assembled monolayer and organic semiconductor. The ordered films exhibit high mobilities and constrain the current paths. The regions surrounding the devices, where the interaction is inhibited, consist of randomly oriented molecules, exhibiting high-resistivity and electrically insulating neighboring devices. To identify the role of F-F interactions in the development of crystalline order, we investigate OTFTs fabricated on mono-fluorinated benzene thiol treated contacts, which allows us to isolate the interactions between the F originating from the organic semiconductor and the F in each position on the benzene ring of the thiol, and to selectively study the role of each interaction. Combining the results obtained from quantitative grazing incidence X-ray diffraction and Kelvin probe measurements, we show that the surface treatments induce structural changes in the films, but also alter the injection picture as a result of work function shifts that they introduce. We show that both effects yield variations in the field-effect transistor characteristics, and we are able to tune the field-effect mobility more than two orders of magnitude in the same material.
C1 [Ward, Jeremy W.; Jurchescu, Oana D.] Wake Forest Univ, Dept Phys, Winston Salem, NC 27109 USA.
[Loth, Marsha A.; Anthony, John E.] Univ Kentucky, Dept Chem, Lexington, KY 40506 USA.
[Kline, R. Joseph] Natl Inst Stand & Technol, Div Polymers, Gaithersburg, MD 20886 USA.
[Coll, Mariona; Ocal, Carmen] Campus UAB, Inst Ciencia Mat Barcelona, Barcelona 08193, Spain.
RP Jurchescu, OD (reprint author), Wake Forest Univ, Dept Phys, Winston Salem, NC 27109 USA.
EM jurchescu@wfu.edu
RI Coll, Mariona/C-5350-2012; Ocal, Carmen/G-8590-2013; Ward,
Jeremy/J-6371-2014; Kline, Regis/B-8557-2008;
OI Coll, Mariona/0000-0001-5157-7764; Ocal, Carmen/0000-0001-8790-8844;
Anthony, John/0000-0002-8972-1888
FU National Science Foundation [ECCS-1102275]; MICINN; Spanish MICINN
Consolider NANOSELECT [CSD2007-00041]; Office of Naval Research
[N00014-11-1-0329]
FX Work at WFU was supported by the National Science Foundation
(ECCS-1102275). M. C. thanks MICINN for JdC grant. Part of this research
was supported by Spanish MICINN Consolider NANOSELECT (CSD2007-00041).
Synthesis of organic semiconductors (JEA/MAL) was supported by the
Office of Naval Research (N00014-11-1-0329). Portions of this research
were carried out at the Stanford Synchrotron Radiation Light-source, a
Directorate of SLAC National Accelerator Laboratory and an Office of
Science User Facility operated for the U.S. Department of Energy Office
of Science by Stanford University. We thank Michael F Toney for help
with the GIWAXS measurements and Gert-Jan Wetzelaer for the assistance
establishing our Kelvin probe measurement system.
NR 45
TC 29
Z9 29
U1 3
U2 40
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 0959-9428
J9 J MATER CHEM
JI J. Mater. Chem.
PY 2012
VL 22
IS 36
BP 19047
EP 19053
DI 10.1039/c2jm33974a
PG 7
WC Chemistry, Physical; Materials Science, Multidisciplinary
SC Chemistry; Materials Science
GA 992PE
UT WOS:000307790300050
ER
PT J
AU Hardy, GJ
Nayak, R
Alam, SM
Shapter, JG
Heinrich, F
Zauscher, S
AF Hardy, Gregory J.
Nayak, Rahul
Alam, S. Munir
Shapter, Joseph G.
Heinrich, Frank
Zauscher, Stefan
TI Biomimetic supported lipid bilayers with high cholesterol content formed
by alpha-helical peptide-induced vesicle fusion
SO JOURNAL OF MATERIALS CHEMISTRY
LA English
DT Article
ID QUARTZ-CRYSTAL MICROBALANCE; ATOMIC-FORCE MICROSCOPY; NEUTRALIZING
ANTIBODIES; PHOSPHOLIPID-BILAYERS; UNILAMELLAR VESICLES; VIRUS ENVELOPE;
THIN-FILM; QCM-D; MEMBRANES; ADSORPTION
AB In this study, we present a technique to create complex, high cholesterol-containing supported lipid bilayers (SLBs) using alpha-helical (AH) peptide-induced vesicle fusion. Vesicles consisting of POPC : POPE : POPS : SM : Chol (9.35 : 19.25 : 8.25 : 18.15 : 45.00) were used to form a SLB that models the native composition of the human immunodeficiency virus-1 (HIV-1) lipid envelope. In the absence of AH peptides, these biomimetic vesicles fail to form a complete SLB. We verified and characterized AH peptide-induced vesicle fusion by a quartz crystal microbalance with dissipation monitoring, neutron reflectivity, and atomic force microscopy. Successful SLB formation entailed a characteristic frequency shift of -35.4 +/- 0.8 Hz and a change in dissipation energy of 1.91 +/- 0.23 x 10(-6). Neutron reflectivity measurements determined the SLB thickness to be 49.9(-1.5)(+1.9) angstrom, and showed the SLB to be 100 (+0.0)(-0.1)% complete and void of residual AH peptide after washing. Atomic force microscopy imaging confirmed complete SLB formation and revealed three distinct domains with no visible defects. This vesicle fusion technique gives researchers access to a complex SLB composition with high cholesterol content and thus the ability to better recapitulate the native HIV-1 lipid
C1 [Hardy, Gregory J.; Nayak, Rahul; Zauscher, Stefan] Duke Univ, Dept Mech Engn & Mat Sci, Durham, NC 27708 USA.
[Alam, S. Munir] Duke Univ, Dept Med, Human Vaccine Inst, Sch Med, Durham, NC 27710 USA.
[Shapter, Joseph G.] Flinders Univ S Australia, Sch Chem & Phys Sci, Flinders Ctr Nanoscale Sci & Technol, Adelaide, SA 5001, Australia.
[Heinrich, Frank] Carnegie Mellon Univ, Dept Phys, Pittsburgh, PA 15213 USA.
[Heinrich, Frank] NIST, Ctr Neutron Res, Gaithersburg, MD 20899 USA.
RP Zauscher, S (reprint author), Duke Univ, Dept Mech Engn & Mat Sci, 144 Hudson Hall,Box 90300, Durham, NC 27708 USA.
EM zauscher@duke.edu
RI Heinrich, Frank/A-5339-2010;
OI Heinrich, Frank/0000-0002-8579-553X; Nayak, Rahul/0000-0001-6725-7634
FU AHA; NIAID; Australian Microscopy and Microanalysis Research Facility
(AMMRF); Duke University Center for AIDS Research (CFAR); NIH [5P30
AI064518]; Center for Biomolecular and Tissue Engineering; East Asia and
Pacific Summer Institutes (EAPSI) program
FX We thank Dr Christopher Gibson for his guidance and support with AFM
imaging. This research was supported by AHA and NIAID (S.M.A.), by the
Australian Microscopy and Microanalysis Research Facility (AMMRF)
(J.G.S.), and by the Duke University Center for AIDS Research (CFAR), an
NIH funded program (5P30 AI064518) (S.Z.), G.J.H. gratefully
acknowledges the financial support from The Center for Biomolecular and
Tissue Engineering and the East Asia and Pacific Summer Institutes
(EAPSI) program.
NR 43
TC 17
Z9 17
U1 1
U2 20
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 0959-9428
EI 1364-5501
J9 J MATER CHEM
JI J. Mater. Chem.
PY 2012
VL 22
IS 37
BP 19506
EP 19513
DI 10.1039/c2jm32016a
PG 8
WC Chemistry, Physical; Materials Science, Multidisciplinary
SC Chemistry; Materials Science
GA 996OK
UT WOS:000308099900019
PM 23914075
ER
PT J
AU Fu, RS
Pasaogullari, U
Shiomi, T
Tabuchi, Y
Hussey, DS
Jacobson, DL
AF Fu, Richard S.
Pasaogullari, Ugur
Shiomi, Takeshi
Tabuchi, Yuichiro
Hussey, Daniel S.
Jacobson, David L.
TI High-Resolution Neutron Radiography of Through-Plane Liquid Water
Distribution in Polymer Electrolyte Membrane and Gas Diffusion Layer
SO JOURNAL OF THE ELECTROCHEMICAL SOCIETY
LA English
DT Article
ID THERMAL-CONDUCTIVITY; TRANSPORT; PTFE; FLOW
AB We re-investigate our previously studied water transport phenomena under nonisothermal conditions by measuring the through-plane liquid water distribution across PEFC components with the state-of-the-art high-resolution neutron radiography. A corrective postprocessing procedure to eliminate artifacts arising from polymer electrolyte membrane (PEM) swelling in water thickness measurement is introduced for the first time. Presence of a water content gradient in the polymer electrolyte membrane was observed under large temperature gradient and high humidity conditions. Water distribution in gas diffusion layers (GDLs) was measured by replacing the PEM with a film of PTFE. The experiment yielded a pronounced liquid water peak at the PTFE interface. (C) 2012 The Electrochemical Society. [DOI: 10.1149/2.026209jes] All rights reserved.
C1 [Fu, Richard S.; Pasaogullari, Ugur] Univ Connecticut, Dept Mech Engn, Storrs, CT 06269 USA.
[Fu, Richard S.; Pasaogullari, Ugur] Univ Connecticut, Ctr Clean Energy Engn, Storrs, CT 06269 USA.
[Shiomi, Takeshi; Tabuchi, Yuichiro] Nissan Motor Co Ltd, Nissan Res Ctr, Kanagawa 2378523, Japan.
[Hussey, Daniel S.; Jacobson, David L.] NIST, Phys Measurement Lab, Gaithersburg, MD 20899 USA.
RP Fu, RS (reprint author), Univ Connecticut, Dept Mech Engn, Storrs, CT 06269 USA.
EM ugur.pasaogullari@uconn.edu
RI Pasaogullari, Ugur/D-8761-2013
FU U.S. Department of Commerce; NIST Ionizing Radiation Division;
Director's office of NIST; NIST Center for Neutron Research; Department
of Energy [DE-AI01-01EE50660]; National Science Foundation
[CBET-0748063]; Nissan Motor Co.
FX The authors acknowledge Eli Baltic of the NIST for technical assistance
in carrying out the neutron radiography experiments and Dr. Takashi
Sasabe for valuable discussions. This work was supported by the U.S.
Department of Commerce, the NIST Ionizing Radiation Division, the
Director's office of NIST, the NIST Center for Neutron Research, and the
Department of Energy through interagency agreement no.
DE-AI01-01EE50660. Financial support for this work from National Science
Foundation grant No. CBET-0748063 and Nissan Motor Co. is also
acknowledged.
NR 24
TC 8
Z9 8
U1 2
U2 12
PU ELECTROCHEMICAL SOC INC
PI PENNINGTON
PA 65 SOUTH MAIN STREET, PENNINGTON, NJ 08534 USA
SN 0013-4651
J9 J ELECTROCHEM SOC
JI J. Electrochem. Soc.
PY 2012
VL 159
IS 9
BP F545
EP F553
DI 10.1149/2.026209jes
PG 9
WC Electrochemistry; Materials Science, Coatings & Films
SC Electrochemistry; Materials Science
GA 010OR
UT WOS:000309104400052
ER
PT J
AU Richards, RA
Fogarty, MJ
Mountain, DG
Taylor, MH
AF Richards, R. Anne
Fogarty, Michael J.
Mountain, David G.
Taylor, Maureen H.
TI Climate change and northern shrimp recruitment variability in the Gulf
of Maine
SO MARINE ECOLOGY PROGRESS SERIES
LA English
DT Article
DE Recruitment variability; Stock-recruitment; Temperature effects; Climate
change; Ecological indicators; Northern shrimp; Regime shift; Gulf of
Maine
ID PANDALUS-BOREALIS; CONTINENTAL-SHELF; WEST GREENLAND; REGIME SHIFTS;
STOCK SIZE; TEMPERATURE; ABUNDANCE; PHYTOPLANKTON; ECOSYSTEMS; COMMUNITY
AB The northern shrimp Pandalus borealis is an important prey species in North Atlantic marine systems and is the target of major fisheries. It reaches its southern limit of distribution in the western Gulf of Maine (GOM), where temperature is thought to play an important role in its stock dynamics. We examined recruitment dynamics of northern shrimp P. borealis in the GOM from 1968 to 2011 and before and after 1999, when a shift to warmer temperatures occurred (Friedland & Hare 2007). Recruitment was related to temperature during all 3 time periods and was related to the reproductive output of the population from 1968 to 2011 and 1968 to 1999 but not in the most recent period (2000 to 2011). Colder temperatures during the pelagic larval stage were associated with higher recruitment. Recruitment variability increased coincident with the 1999 temperature shift; other changes in the physical environment and lower trophic levels of the GOM have been seen as well. Whether the increase in recruitment variability signals a regime shift in the GOM is not yet clear. Increasing the reproductive potential of GOM northern shrimp through conservation measures could help compensate for increasingly unfavorable environmental conditions (warming) and increase the chances of preserving this population and its ecological role in the GOM.
C1 [Richards, R. Anne; Fogarty, Michael J.; Taylor, Maureen H.] NOAA, NE Fisheries Sci Ctr, Woods Hole, MA 02543 USA.
RP Richards, RA (reprint author), NOAA, NE Fisheries Sci Ctr, Woods Hole, MA 02543 USA.
EM anne.richards@noaa.gov
FU Saltonstall-Kennedy grant [NA96FD0073]
FX We dedicate this paper to the memory of our friend and colleague, Dr.
Stephen H. Clark, who was instrumental in northern shrimp research in
the Gulf of Maine for many years and whose unflagging enthusiasm,
friendship and support are greatly missed. We are grateful to D. Schick,
M. Hunter, M. Lazzari and others at the Maine Department of Marine
Resources for providing data and insights that were important to the
present study, and to the many dedicated workers of the Northeast
Fisheries Science Center and member states of the Atlantic States
Fisheries Commission who collected data on northern shrimp, both at sea
and in the laboratory. This work was funded in part by
Saltonstall-Kennedy grant NA96FD0073 to R.A.R. and M.J.F.
NR 55
TC 5
Z9 5
U1 7
U2 47
PU INTER-RESEARCH
PI OLDENDORF LUHE
PA NORDBUNTE 23, D-21385 OLDENDORF LUHE, GERMANY
SN 0171-8630
EI 1616-1599
J9 MAR ECOL PROG SER
JI Mar. Ecol.-Prog. Ser.
PY 2012
VL 464
BP 167
EP 178
DI 10.3354/meps09869
PG 12
WC Ecology; Marine & Freshwater Biology; Oceanography
SC Environmental Sciences & Ecology; Marine & Freshwater Biology;
Oceanography
GA 010WP
UT WOS:000309125500011
ER
PT J
AU Liu, H
Fogarty, MJ
Glaser, SM
Altman, I
Hsieh, CH
Kaufman, L
Rosenberg, AA
Sugihara, G
AF Liu, Hui
Fogarty, Michael J.
Glaser, Sarah M.
Altman, Irit
Hsieh, Chih-hao
Kaufman, Les
Rosenberg, Andrew A.
Sugihara, George
TI Nonlinear dynamic features and co-predictability of the Georges Bank
fish community
SO MARINE ECOLOGY PROGRESS SERIES
LA English
DT Article
DE Nonlinear system dynamics; Co-predictability; Fish population; Community
ID ECOLOGICAL TIME-SERIES; LONG-TERM FLUCTUATIONS; GUILD STRUCTURE;
ECOSYSTEM; HYPOTHESIS; FISHERIES; MODELS; CHAOS
AB We examined evidence for nonlinear dynamics in fishery-independent survey data for an assemblage of 26 fish species on Georges Bank spanning the period 1963 to 2008. We used nonlinear time series analysis to determine (1) the presence of nonlinear dynamics in fish populations on Georges Bank, (2) the minimum number of dimensions required to effectively describe system dynamics, (3) the strength of patterns of co-predictability among all possible pairs of fish species, and (4) identification of groups of species characterized by similar dynamics. Here, nonlinear behavior refers to non-equilibrium dynamics, including chaos. The population trajectories of all 26 species exhibited strong density-dependent feedback as indicated by a Partial Rate Correlation Function analysis. Significant evidence of complex dynamical behavior was found for approximately 1 in 5 species. Low dimensionality for many of the individual series was identified, suggesting that for a given level of predictability, this system can be represented by a relatively small number of critically important ecological variables. Further, we found high levels of co-predictability among pairwise combinations of individual species. We identified 4 major species groups sharing similar dynamic features on the basis of patterns of co-predictability, and explored potential mechanisms for interpreting the groupings in terms of trophic interactions and life history characteristics.
C1 [Liu, Hui; Fogarty, Michael J.] NOAA, NMFS, NE Fisheries Sci Ctr, Woods Hole, MA 02543 USA.
[Glaser, Sarah M.; Sugihara, George] Univ Calif San Diego, Scripps Inst Oceanog, La Jolla, CA 92093 USA.
[Altman, Irit; Rosenberg, Andrew A.] Univ New Hampshire, Ocean Proc Anal Lab, Durham, NH 03824 USA.
[Hsieh, Chih-hao] Natl Taiwan Univ, Inst Ecol & Evolutionary Biol, Taipei 106, Taiwan.
[Hsieh, Chih-hao] Natl Taiwan Univ, Inst Oceanog, Taipei 106, Taiwan.
[Kaufman, Les] Boston Univ, Marine Program, Boston, MA 02215 USA.
RP Liu, H (reprint author), Texas A&M Univ, Dept Marine Biol, Galveston, TX 77553 USA.
EM liuh@tamug.edu
RI Hsieh, Chih-hao/B-3797-2008
OI Hsieh, Chih-hao/0000-0001-5935-7272
FU National Science Foundation; National Oceanic and Atmospheric
Administration
FX We thank all those who participated in the NEFSC bottom trawl surveys
over many years. We thank J. Link, B. Shank, E. Klein, H. Ye, E. Deyle,
and L. Storch for discussion of this work. We are grateful for the
constructive reviews from F. M. Serchuk and 4 anonymous referees. This
is CAMEO contribution number 9, a joint program funded by the National
Science Foundation and the National Oceanic and Atmospheric
Administration.
NR 44
TC 10
Z9 10
U1 0
U2 28
PU INTER-RESEARCH
PI OLDENDORF LUHE
PA NORDBUNTE 23, D-21385 OLDENDORF LUHE, GERMANY
SN 0171-8630
J9 MAR ECOL PROG SER
JI Mar. Ecol.-Prog. Ser.
PY 2012
VL 464
BP 195
EP U228
DI 10.3354/meps09868
PG 19
WC Ecology; Marine & Freshwater Biology; Oceanography
SC Environmental Sciences & Ecology; Marine & Freshwater Biology;
Oceanography
GA 010WP
UT WOS:000309125500013
ER
PT J
AU TenBrink, TT
Buckley, TW
AF TenBrink, Todd T.
Buckley, Troy W.
TI Resource partitioning among Myoxocephalus sculpins, and their
predator-prey relationships with Chionoecetes crabs in the eastern
Bering Sea
SO MARINE ECOLOGY PROGRESS SERIES
LA English
DT Article
DE Resource partitioning; Distribution; Diet; Ontogeny; Myoxocephalus;
Chionoecetes; Eastern Bering Sea
ID COD GADUS-MORHUA; FOOD RESOURCES; CONTINENTAL-SHELF; FISH COMMUNITY;
MARINE WATERS; BODY-SIZE; ATLANTIC; ABUNDANT; TRENDS; DISTRIBUTIONS
AB Interspecific and intraspecific variation in the distributions and diets of congeneric sculpins, Myoxocephalus jaok, M. polyacanthocephalus, and M. scorpius, were described from data collected during summer trawl surveys of the eastern Bering Sea (EBS) continental shelf between 2000 and 2010 by the Alaska Fisheries Science Center (AFSC). Generalized additive models (GAMs) of abundance (count) and presence-absence data were applied separately for each species to examine the influence of selected factors (depth, bottom temperature, substrate type and location) on distribution and abundance. The final models indicated strong predictive relationships, suggesting habitat partitioning between species. Ontogenetic distributions were observed as larger individuals of each species tended to be associated with deeper depths and lower latitudes. Analysis of stomach contents indicated that these species consume a wide variety of prey and that the diet composition also shifted ontogenetically. Multivariate analyses of the mean percent weight (%W) of 23 diet categories indicated that the diets differed among and within species. The diet of M. jaok consisted primarily of mysids, shrimps, and flatfish, with larger sculpins feeding on a greater amount of flatfish prey and less benthic infauna. Both M. polyacanthocephalus and M. scorpius fed considerably on commercially important Chionoecetes crabs, particularly C. opilio; however, similar-sized M. polyacanthocephalus consumed larger Chionoecetes prey than M. scorpius. Diets were more variable among smaller sculpins of these 2 species, and piscivory was more common among M. polyacanthocephalus. Habitat and diet partitioning were evident among species within this genus, as each species exhibited distinct spatial boundaries and diets, possibly avoiding inter-and intraspecific competition in this environment.
C1 [TenBrink, Todd T.; Buckley, Troy W.] NOAA, Resource Ecol & Fisheries Management Div, Alaska Fisheries Sci Ctr, Natl Marine Fisheries Serv, Seattle, WA 98115 USA.
RP TenBrink, TT (reprint author), NOAA, Resource Ecol & Fisheries Management Div, Alaska Fisheries Sci Ctr, Natl Marine Fisheries Serv, 7600 Sand Point Way NE, Seattle, WA 98115 USA.
EM todd.tenbrink@noaa.gov
FU North Pacific Research Board (NPRB) [628]
FX We thank all the scientists participating in AFSC surveys responsible
for data collection, and A. Whitehouse and R. Hibpshman for stomach
analyses. D. Nichol, J. Hoff, S. Gaichas, K. Aydin and 4 anonymous
reviewers provided comments that improved this manuscript. The findings
and conclusions in the paper are those of the author(s) and do not
necessarily represent the views of the National Marine Fisheries
Service, NOAA. This study was partially funded by the North Pacific
Research Board (NPRB project #628).
NR 53
TC 0
Z9 0
U1 1
U2 11
PU INTER-RESEARCH
PI OLDENDORF LUHE
PA NORDBUNTE 23, D-21385 OLDENDORF LUHE, GERMANY
SN 0171-8630
J9 MAR ECOL PROG SER
JI Mar. Ecol.-Prog. Ser.
PY 2012
VL 464
BP 221
EP 235
DI 10.3354/meps09878
PG 15
WC Ecology; Marine & Freshwater Biology; Oceanography
SC Environmental Sciences & Ecology; Marine & Freshwater Biology;
Oceanography
GA 010WP
UT WOS:000309125500015
ER
PT J
AU Flannery, BG
Crane, PA
Eiler, JH
Beacham, TD
Decovich, NA
Templin, WD
Schlei, OL
Wenburg, JK
AF Flannery, Blair G.
Crane, Penny A.
Eiler, John H.
Beacham, Terry D.
Decovich, Nick A.
Templin, William D.
Schlei, Ora L.
Wenburg, John K.
TI Comparison of Radiotelemetry and Microsatellites for Determining the
Origin of Yukon River Chinook Salmon
SO NORTH AMERICAN JOURNAL OF FISHERIES MANAGEMENT
LA English
DT Article
ID FISH WHEEL CAPTURE; CHUM SALMON; STOCK IDENTIFICATION;
POPULATION-STRUCTURE; ONCORHYNCHUS-NERKA; ALASKA; PROPORTIONS;
FISHERIES; DISTANCE; US
AB Chinook salmon Oncorhynchus tshawytscha support important subsistence and commercial fisheries throughout the Yukon River. Low returns and diverse user groups have made management of these fisheries contentious and have necessitated information on the origin of the spawning migration and harvest. Here we compare estimates of individual assignment and stock composition derived from genetic and radiotelemetry data collected from the same Chinook salmon. Radiotelemetry and genetic individual assignments were highly concordant. Agreement between methods for individual assignment was 79% to region and 93% to country when using the most probable genetic criterion, improving to 94% for region and 98% for country when using the >= 95% probability genetic criterion; however, under the more stringent criterion, fewer individuals could be assigned. Further analysis showed that estimates of stock composition based on radiotelemetry and genetic methods were within 6% of each other and were not significantly different. The concordance between estimates of individual assignment and stock composition from the radiotelemetry and genetic methods indicates that both methods are credible tools for fishery assessment of Yukon River Chinook salmon.
C1 [Flannery, Blair G.; Crane, Penny A.; Schlei, Ora L.; Wenburg, John K.] US Fish & Wildlife Serv, Conservat Genet Lab, Anchorage, AK 99503 USA.
[Eiler, John H.] Natl Marine Fisheries Serv, Alaska Fisheries Sci Ctr, Juneau, AK 99801 USA.
[Beacham, Terry D.] Dept Fisheries & Oceans Canada, Pacific Biol Stn, Mol Genet Lab, Nanaimo, BC V9T 6N7, Canada.
[Decovich, Nick A.; Templin, William D.] Alaska Dept Fish & Game, Gene Conservat Lab, Anchorage, AK 99518 USA.
RP Flannery, BG (reprint author), US Fish & Wildlife Serv, Conservat Genet Lab, 1011 E Tudor Rd, Anchorage, AK 99503 USA.
EM blair_flannery@fws.gov
NR 40
TC 3
Z9 3
U1 1
U2 11
PU TAYLOR & FRANCIS INC
PI PHILADELPHIA
PA 325 CHESTNUT ST, SUITE 800, PHILADELPHIA, PA 19106 USA
SN 0275-5947
J9 N AM J FISH MANAGE
JI North Am. J. Fish Manage.
PY 2012
VL 32
IS 4
BP 720
EP 730
DI 10.1080/02755947.2012.686954
PG 11
WC Fisheries
SC Fisheries
GA 006CO
UT WOS:000308797200004
ER
PT J
AU Lew, DK
Larson, DM
AF Lew, Daniel K.
Larson, Douglas M.
TI Economic Values for Saltwater Sport Fishing in Alaska: A Stated
Preference Analysis
SO NORTH AMERICAN JOURNAL OF FISHERIES MANAGEMENT
LA English
DT Article
ID RECREATION SPECIALIZATION; DEMAND; MANAGEMENT; FISHERY; ANGLERS; MODEL;
VALUATION; POLICIES; TIME
AB The knowledge of how anglers value their fishing opportunities is a fundamental building block of a sound marine policy, especially for stocks for which there is conflict over allocation between different uses (e.g., allocation between recreational and commercial uses and conservation goals). This paper reports on how recreational saltwater anglers value their catches, and the regulations governing them, of Pacific halibut Hippoglossus stenolepis, Chinook salmon Oncorhynchus tshawytscha, and coho salmon O. kisutch off the coast of Alaska using stated preference choice experiment data from 2007. Using data from a stated preference survey, we estimated the economic value, or willingness to pay, anglers place on saltwater boat fishing trips in Alaska and assess their response to changes in the characteristics of fishing trips. The results show that Alaska resident anglers had mean trip values ranging from US$246 to $444, while nonresidents had much higher values ($2,007 to $2,639), likely reflecting the fact that their trips are both less common and considerably more expensive to take. Nonresidents generally had significant positive values for increases in the number of fish caught, bag limit, and fish size, while Alaska residents valued size and bag limit changes but not catch increases. The economic values are also discussed in the context of allocation issues, particularly as they relate to the sport fishing and commercial fishing sectors for Pacific halibut, which is a current issue facing Alaska marine fisheries managers.
C1 [Lew, Daniel K.] NOAA, Natl Marine Fisheries Serv, Resource Ecol & Fisheries Management Div, Alaska Fisheries Sci Ctr, Seattle, WA 98115 USA.
[Lew, Daniel K.; Larson, Douglas M.] Univ Calif Davis, Dept Agr & Resource Econ, Davis, CA 95616 USA.
RP Lew, DK (reprint author), NOAA, Natl Marine Fisheries Serv, Resource Ecol & Fisheries Management Div, Alaska Fisheries Sci Ctr, 7600 Sand Point Way NE, Seattle, WA 98115 USA.
EM dan.lew@noaa.gov
OI Lew, Daniel/0000-0002-3394-138X
NR 45
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U1 5
U2 21
PU TAYLOR & FRANCIS INC
PI PHILADELPHIA
PA 325 CHESTNUT ST, SUITE 800, PHILADELPHIA, PA 19106 USA
SN 0275-5947
J9 N AM J FISH MANAGE
JI North Am. J. Fish Manage.
PY 2012
VL 32
IS 4
BP 745
EP 759
DI 10.1080/02755947.2012.681012
PG 15
WC Fisheries
SC Fisheries
GA 006CO
UT WOS:000308797200006
ER
PT J
AU Hayes, SA
Hanson, CV
Pearse, DE
Bond, MH
Garza, JC
MacFarlane, RB
AF Hayes, Sean A.
Hanson, Chad V.
Pearse, Devon E.
Bond, Morgan H.
Garza, John Carlos
MacFarlane, R. Bruce
TI Should I Stay or Should I Go? The Influence of Genetic Origin on
Emigration Behavior and Physiology of Resident and Anadromous Juvenile
Oncorhynchus mykiss
SO NORTH AMERICAN JOURNAL OF FISHERIES MANAGEMENT
LA English
DT Article
ID SALMO-SALAR L; RAINBOW-TROUT; POPULATION-STRUCTURE; CHINOOK SALMON;
LIFE-HISTORY; FRESH-WATER; STEELHEAD/RAINBOW TROUT; OTOLITH
MICROCHEMISTRY; ATLANTIC SALMON; MATING SYSTEM
AB We investigated the interaction among genetically identified origin, behavioral tendency to emigrate, and Na+, K+-ATPase enzyme activity in recently diverged subpopulations of resident (above-barrier) rainbow trout Oncorhynchus mykiss and steelhead (anadromous rainbow trout) in Scott Creek, California. Genetic assignment tests found that the frequency of resident and anadromous origin fish varied by sampling location within the watershed. Individuals immediately below barriers assigned to both above-barrier (37%) and anadromous (63%) subpopulations, and distinct differences in size and age were observed. However, the majority of downstream migration behavior occurred in fish of anadromous ancestry, which represented 97% of the fish sampled as outmigrating smolts. Nonmigratory fish of both life history types and origins typically had low Na+, K+-ATPase activity levels throughout most of the year, but significantly elevated levels were observed in individuals from both groups during the spring smolt migration period. Conversely, many fish sampled in the upper watershed with anadromous genotypes were greater than typical smolt size thresholds for this population yet appeared unlikely tomigrate based on low Na+, K+-ATPase activity. Life history pathways of O. mykiss in this population are strongly influenced but not entirely determined by origin in the resident or anadromous subpopulation, and this relationship has implications for recovery of populations impacted by dams, water diversions, and residualized hatchery fish. Further, this work demonstrates the need to consider resident rainbow trout as potentially important resources for recovery of threatened and endangered steelhead populations.
C1 [Hayes, Sean A.; Hanson, Chad V.; Pearse, Devon E.; Bond, Morgan H.; Garza, John Carlos; MacFarlane, R. Bruce] NOAA, Natl Marine Fisheries Serv, SW Fisheries Sci Ctr, Fisheries Ecol Div, Santa Cruz, CA 95060 USA.
RP Hayes, SA (reprint author), NOAA, Natl Marine Fisheries Serv, SW Fisheries Sci Ctr, Fisheries Ecol Div, 110 Shaffer Rd, Santa Cruz, CA 95060 USA.
EM sean.hayes@noaa.gov
FU National Marine Fisheries Service; California Central Coast Salmon
Restoration Program; California Fisheries Restoration Grant Program
FX Funding for this study was provided by the National Marine Fisheries
Service, the California Central Coast Salmon Restoration Program, and
the California Fisheries Restoration Grant Program. Field assistance was
provided by A. Ammann, M. Atcheson, M. Beakes, S. Campbell, A. Collins,
M. Durighello, D. Frechette, L. Schilpp, D. Gottesman, E. Freund, J.
Harding, K. Hauser, T. Hollenbeck, D. Kaufman, J. Krupa, J. Perez, C.
Phillis, C. Michel, A. Osterback, I. Ralston, D. Schperberg, S. Sogard,
D. Swank, E. Sturm, R. Weidling, and J. Wong. We thank J. Anderson, G.
Charrier, E. Gilbert-Horvath, A. Martinez, H. Starks, and E.
Wood-Charlson for assisting with laboratory analysis of DNA samples.
Landowner access was provided by Big Creek Lumber Company, the Rowley
family, the Wilson family, Lockheed Martin Corporation and Cal Poly's
Swanton Pacific Ranch. Animal studies were approved by the University of
California Santa Cruz Animal Use Committee and carried out according to
National Institutes of Health guidelines and National Marine Fisheries
Service Endangered Species Act Section 10 permit 1112.
NR 47
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U1 2
U2 40
PU TAYLOR & FRANCIS INC
PI PHILADELPHIA
PA 530 WALNUT STREET, STE 850, PHILADELPHIA, PA 19106 USA
SN 0275-5947
EI 1548-8675
J9 N AM J FISH MANAGE
JI North Am. J. Fish Manage.
PY 2012
VL 32
IS 4
BP 772
EP 780
DI 10.1080/02755947.2012.686953
PG 9
WC Fisheries
SC Fisheries
GA 006CO
UT WOS:000308797200008
ER
PT J
AU Merz, JE
Skvorc, P
Sogard, SM
Watry, C
Blankenship, SM
Van Nieuwenhuyse, EE
AF Merz, Joseph E.
Skvorc, Paul
Sogard, Susan M.
Watry, Clark
Blankenship, Scott M.
Van Nieuwenhuyse, Erwin E.
TI Onset of Melanophore Patterns in the Head Region of Chinook Salmon: A
Natural Marker for the Reidentification of Individual Fish
SO NORTH AMERICAN JOURNAL OF FISHERIES MANAGEMENT
LA English
DT Article
ID GREY NURSE SHARKS; CARCHARIAS-TAURUS; PACIFIC SALMON; SURVIVAL; GROWTH;
IDENTIFICATION; CALIFORNIA; PHOTOIDENTIFICATION; TAG; CONSERVATION
AB We used pattern recognition algorithms and image processing to identify individual Chinook salmon Oncorhynchus tshawytscha. Using melanophore spot patterns located on the dorsal head region, algorithms ranked all database images against each other. We coupled this technology with a graphical user interface to visually confirm or reject top-ranked algorithm results and tested this process on 295 juvenile Chinook salmon in seven photo sessions over a 251-d period. Juveniles began developing spots, identifiable in photo images, between 167 and 197 d after conception (52.7-mm fork length [FL]). Unique spot patterns appeared 197-232 d from conception, beginning at approximately 104-mm FL. Of 254 fish surviving the experimental period, 106 (42%) demonstrated identifiable patterns, 102 (40%) developed spots but patterns were insufficient for identification, and 46 (18%) exhibited a complete lack of spots. Spot patterns continued developing on individual fish by study end. On average, fish that developed recognizable spot patterns did so at approximately 140-mm FL. Once they did, reidentification was 100% correct in up to four subsequent trials. Patterns remained identifiable even after a 25-32% size increase over a 55-d period and as juveniles went through smoltification. Although patterns occurred at sizes typically larger than salmon observed at some California Central Valley monitoring locations, this technique provides a potentially valuable, noninvasive method of identifying individual salmon during emigration. Improved image collection techniques and use of body areas exhibiting identifiable patterns at earlier developmental stages may increase fish available for pattern identification. These results demonstrate the indexing of a large database using pattern recognition algorithms for Chinook salmon. The utility of such an approach may be valuable for addressing specific biological questions associated with mass-produced (wild and hatchery), migratory salmonids, especially as individuals develop, grow, and move through the various habitats available to them.
C1 [Merz, Joseph E.] Univ Calif Santa Cruz, Inst Marine Sci, Santa Cruz, CA 95064 USA.
[Merz, Joseph E.; Watry, Clark; Blankenship, Scott M.] Cramer Fish Sci, W Sacramento, CA 95691 USA.
[Skvorc, Paul] Biopar LLC, Wasilla, AK 99687 USA.
[Sogard, Susan M.] Natl Marine Fisheries Serv, Santa Cruz, CA 95060 USA.
[Van Nieuwenhuyse, Erwin E.] US Bur Reclamat, US Dept Interior, Sacramento, CA 95814 USA.
RP Merz, JE (reprint author), Univ Calif Santa Cruz, Inst Marine Sci, 1156 High St, Santa Cruz, CA 95064 USA.
EM jmerz@fishsciences.net
FU U.S. Department of the Interior, Bureau of Reclamation (BOR)
[09PG200118]
FX This project was funded by the U.S. Department of the Interior, Bureau
of Reclamation (BOR), contract 09PG200118. We thank J. Adams, M. Beakes,
C. Kern, and N. Parker for fish husbandry, tagging, and photography. The
experiments were conducted in the National Oceanic and Atmospheric
Administration Fisheries aquarium facility, Santa Cruz, California, with
assistance and supervision by E. Sturm. B. Beckett and C. Laskodi
provided image handling and databasemanagement; D. Smyers provided image
edit support. The CDFG provided valuable information on Sacramento River
late-fall Chinook salmon lengths. Similarly, the BOR provided lengths
for fish from the Tracy Fish Collection Facility. Reference to trade
names does not imply endorsement by the U. S. Government.
NR 48
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U1 0
U2 7
PU TAYLOR & FRANCIS INC
PI PHILADELPHIA
PA 325 CHESTNUT ST, SUITE 800, PHILADELPHIA, PA 19106 USA
SN 0275-5947
J9 N AM J FISH MANAGE
JI North Am. J. Fish Manage.
PY 2012
VL 32
IS 4
BP 806
EP 816
DI 10.1080/02755947.2012.681014
PG 11
WC Fisheries
SC Fisheries
GA 006CO
UT WOS:000308797200012
ER
PT S
AU Aubin, S
Gomez, E
Behr, JA
Pearson, MR
Sheng, D
Zhang, J
Collister, R
Melconian, D
Flambaum, VV
Sprouse, GD
Orozco, LA
Gwinner, G
AF Aubin, S.
Gomez, E.
Behr, J. A.
Pearson, M. R.
Sheng, D.
Zhang, J.
Collister, R.
Melconian, D.
Flambaum, V. V.
Sprouse, G. D.
Orozco, L. A.
Gwinner, G.
BE Steadman, SG
Stephans, GSF
Taylor, FE
TI The FrPNC Experiment at TRIUMF: Atomic Parity Non-Conservation in
Francium
SO 19TH PARTICLES AND NUCLEI INTERNATIONAL CONFERENCE (PANIC11)
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 19th Particles and Nuclei International Conference (PANIC)
CY JUL 24-29, 2011
CL Massachusetts Inst Technol, Cambridge, MA
SP Argonne Natl Lab, Brookhaven Natl Lab, CERN, DESY, GSI, Int Union Pure & Appl Phys (IUPAP), L-3 Commun Inc, Los Alamos Natl Lab, Lawrence Berkeley Natl Lab, MIT-Bates Linear Accelerator Ctr, MIT Ctr Theoret Phys (CTP), MIT Dept Phys, Natl Sci Fdn (NSF), Oak Ridge Natl Lab, Passport Syst Inc, Schlumberger, Thomas Jefferson Natl Accelerator Facil, Univ Chicago, U S Dept Energy Off Sci, MIT-LNS
HO Massachusetts Inst Technol
DE Parity violation; anapole moment; laser cooling
AB The FrPNC collaboration has begun the construction of an on-line laser cooling and trapping apparatus at TRIUMF to measure atomic parity non-conservation (PNC) and the nuclear anapole moment in a string of artificially produced francium isotopes. Atomic PNC experiments provide unique high precision tests of the electroweak sector of the Standard Model at very low energies. Furthermore, precision measurements of spin-dependent atomic PNC can determine nuclear anapole moments and probe the weak force within the nucleus. Francium is an excellent candidate for precision measurements of atomic PNC due to its simple electronic structure and enhanced parity violation: both the optical PNC and anapole moment signals are expected to be over an order of magnitude larger than in cesium.
C1 [Aubin, S.] Coll William & Mary, Dept Phys, Williamsburg, VA 23187 USA.
[Gomez, E.] Univ Autonoma San Luis Potosi, Inst Phys, San Luis Potosi, Mexico.
[Behr, J. A.; Pearson, M. R.] TRIUMF, Vancouver, BC V6T 2A3, Canada.
[Sheng, D.; Zhang, J.; Orozco, L. A.] Natl Inst Stand & Technol, Joint Quantum Inst, Dept Phys, College Pk, MD 20742 USA.
[Collister, R.; Gwinner, G.] Univ Manitoba, Dept Phys & Astron, Winnipeg, MB R3T 2N2, Canada.
[Melconian, D.] Texas A&M Univ, Inst Cyclotron, College Stn, TX 77843 USA.
[Flambaum, V. V.] Univ New S Wales, Sch Phys, Sydney, NSW 2052, Australia.
[Sprouse, G. D.] SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA.
RP Aubin, S (reprint author), Coll William & Mary, Dept Phys, Williamsburg, VA 23187 USA.
RI Melconian, Dan/A-1331-2011; Sheng, Dong/J-6640-2014;
OI Melconian, Dan/0000-0002-0142-5428; Sprouse, Gene/0000-0002-7526-6490
FU DOE; NSF; NSERC; TRIUMF
FX The authors thank the TRIUMF/ISAC francium production team. The
collaboration gratefully acknowledges support by DOE, NSF, NSERC, and
TRIUMF.
NR 11
TC 3
Z9 3
U1 0
U2 1
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-1036-7
J9 AIP CONF PROC
PY 2012
VL 1441
BP 555
EP 557
DI 10.1063/1.3700615
PG 3
WC Physics, Applied; Physics, Particles & Fields
SC Physics
GA BBI40
UT WOS:000306963900141
ER
PT S
AU Chupp, TE
Coulter, KP
Cooper, RL
Freedman, SJ
Fujikawa, BJ
Garcia, A
Jones, GL
Mumm, HP
Nico, JS
Thompson, AK
Trull, CA
Wietfeldt, FE
Wilkerson, JF
AF Chupp, T. E.
Coulter, K. P.
Cooper, R. L.
Freedman, S. J.
Fujikawa, B. J.
Garcia, A.
Jones, G. L.
Mumm, H. P.
Nico, J. S.
Thompson, A. K.
Trull, C. A.
Wietfeldt, F. E.
Wilkerson, J. F.
BE Steadman, SG
Stephans, GSF
Taylor, FE
TI A New Limit on Time-Reversal Violation in Beta Decay: Results of the
emiTII Experiment
SO 19TH PARTICLES AND NUCLEI INTERNATIONAL CONFERENCE (PANIC11)
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 19th Particles and Nuclei International Conference (PANIC)
CY JUL 24-29, 2011
CL Massachusetts Inst Technol, Cambridge, MA
SP Argonne Natl Lab, Brookhaven Natl Lab, CERN, DESY, GSI, Int Union Pure & Appl Phys (IUPAP), L-3 Commun Inc, Los Alamos Natl Lab, Lawrence Berkeley Natl Lab, MIT-Bates Linear Accelerator Ctr, MIT Ctr Theoret Phys (CTP), MIT Dept Phys, Natl Sci Fdn (NSF), Oak Ridge Natl Lab, Passport Syst Inc, Schlumberger, Thomas Jefferson Natl Accelerator Facil, Univ Chicago, U S Dept Energy Off Sci, MIT-LNS
HO Massachusetts Inst Technol
DE Time Reversal Invariance; Beta Decay
ID ELECTROMAGNETIC SIMULATION; NEUTRON DECAY; T-VIOLATION; INVARIANCE;
NUCLEAR; TESTS; HE-3; ODD
AB We have measured the triple correlation D <(J) over right arrow (n)> . ((p) over right arrow (e) x (p) over right arrow (nu)) with a polarized cold-neutron beam at the NIST Center for Neutron Research by observing proton-electron coincidences in the decay of polarized neutrons. A non-zero value of D can arise due to parity-even-time-reversal-odd interactions that imply CP violation due to the CPT theorem. Final-state effects also contribute to D at the level of 10(-5) and can be calculated with precision of 1% or better. The D coefficient is sensitive to the phase, of l the ratio of axial-vector and vector amplitudes as well as to scalar and tensor interactions that could arise due to beyond-Standard-Model physics such as leptoquarks. Over 300 million proton-electron coincidence events were used in a blind analysis with the result D = [-0.96 +/- 1.89 (stat) +/- 1.01 (sys)] x 10(-4).
C1 [Chupp, T. E.; Coulter, K. P.; Cooper, R. L.] Univ Michigan, Ann Arbor, MI 48104 USA.
[Freedman, S. J.; Fujikawa, B. J.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[Garcia, A.; Wilkerson, J. F.] Univ Washington, CENPA, Dept Phys, Seattle, WA 98195 USA.
[Garcia, A.] Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 USA.
[Jones, G. L.] Hamilton Coll, Dept Phys, Clinton, NY 13323 USA.
[Mumm, H. P.; Nico, J. S.; Thompson, A. K.] Natl Inst Stand & Technol, Gaithersburg, MD 20899 USA.
[Trull, C. A.; Wietfeldt, F. E.] Tulane Univ, Dept Phys, New Orleans, LA 70118 USA.
[Wilkerson, J. F.] Univ N Carolina, Dept Phys & Astron, Chapel Hill, NC 27599 USA.
RP Chupp, TE (reprint author), Univ Michigan, Ann Arbor, MI 48104 USA.
OI Wilkerson, John/0000-0002-0342-0217; Garcia,
Alejandro/0000-0001-6056-6645
NR 29
TC 0
Z9 0
U1 0
U2 3
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-1036-7
J9 AIP CONF PROC
PY 2012
VL 1441
BP 585
EP 589
DI 10.1063/1.3700625
PG 5
WC Physics, Applied; Physics, Particles & Fields
SC Physics
GA BBI40
UT WOS:000306963900151
ER
PT S
AU Striegel, AM
Brewer, AK
AF Striegel, Andre M.
Brewer, Amandaa K.
BE Cooks, RG
Yeung, ES
TI Hydrodynamic Chromatography
SO ANNUAL REVIEW OF ANALYTICAL CHEMISTRY, VOL 5
SE Annual Review of Analytical Chemistry
LA English
DT Article; Book Chapter
DE multiple detection; particle sizing; polymer characterization;
chromatography fundamentals; packed-column HDC; microcapillary HDC
ID SIZE-EXCLUSION CHROMATOGRAPHY; GEL PERMEATION CHROMATOGRAPHY; FIELD-FLOW
FRACTIONATION; PACKED-COLUMNS; SEPARATION; POLYMER; MACROMOLECULES;
DEGRADATION; PARTICLES; SILICA
AB Hydrodynamic chromatography (HDC) has experienced a resurgence in recent years for particle and polymer characterization, principally because of its coupling to a multiplicity of physical detection methods. When coupled to light scattering (both multiangle static and quasi-elastic), viscometric, and refractometric detectors, HDC can determine the molar mass, size, shape, and structure of colloidal analytes continuously and as a function of one another, all in a single analysis. In so doing, it exposes the analytes to less shear force (and, hence, less potential for flow-induced degradation) than in, for instance, size-exclusion chromatography. In this review, we discuss the fundamental chromatographic underpinnings of this technique in terms of retention, band broadening, and resolution, and we describe the power of multidetector HDC with examples from the recent literature.
C1 [Striegel, Andre M.] NIST, Div Analyt Chem, Gaithersburg, MD 20899 USA.
[Brewer, Amandaa K.] Tosoh Biosci LLC, King Of Prussia, PA 19406 USA.
RP Striegel, AM (reprint author), NIST, Div Analyt Chem, Gaithersburg, MD 20899 USA.
EM andre.striegel@nist.gov; amandaa.brewer@tosoh.com
NR 45
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U1 2
U2 64
PU ANNUAL REVIEWS
PI PALO ALTO
PA 4139 EL CAMINO WAY, PO BOX 10139, PALO ALTO, CA 94303-0897 USA
SN 1936-1327
BN 978-0-8243-4405-4
J9 ANNU REV ANAL CHEM
JI Annu. Rev. Anal. Chem.
PY 2012
VL 5
BP 15
EP 34
DI 10.1146/annurev-anchem-062011-143107
PG 20
WC Chemistry, Analytical; Spectroscopy
SC Chemistry; Spectroscopy
GA BBR12
UT WOS:000307956200003
PM 22708902
ER
PT S
AU Janajreh, I
Simiu, E
AF Janajreh, Isam
Simiu, Emil
BA Jin, W
BF Jin, W
TI Large Eddy Simulation of Wind Loads on a Low-Rise Structure and
Comparison with Wind Tunnel Results
SO MECHANICAL ENGINEERING AND MATERIALS, PTS 1-3
SE Applied Mechanics and Materials
LA English
DT Proceedings Paper
CT International Conference on Mechanical Engineering and Materials (ICMEM)
CY JAN 15-16, 2012
CL Melbourne, AUSTRALIA
DE Aerodynamics; Computational Fluid Dynamics (CFD); Large Eddy Simulation;
Wind Engineering
AB This work presents estimates of time histories of pressure coefficients at several taps on the roof of a 1/200 model of a 200 x 100 x 20 ft low-rise building with a 1/24 slope gable roof building. The estimates were obtained by large eddy simulation (LES). The first and second moments as well as peaks for the time histories are compared with those obtained in boundary layer wind-tunnel measurements at the University of Western Ontario. It is noted that the computation times required to obtain records of length comparable to wind tunnel records are at present prohibitively large.
C1 [Janajreh, Isam] Masdar Inst Sci & Technol, Abu Dhabi, U Arab Emirates.
[Simiu, Emil] Natl Inst Stand & Technol, Gaithersburg, MD USA.
RP Janajreh, I (reprint author), Masdar Inst Sci & Technol, Abu Dhabi, U Arab Emirates.
EM ijanajreh@masdar.ac.ae; emil.simiu@nist.gov
FU NIST [SB1341-05-W-1276 NIST]; Masdar Institute of Science and Technology
(MI)
FX This work is partially supported by NIST under grant number
SB1341-05-W-1276 NIST. Masdar Institute of Science and Technology (MI)
support is highly acknowledged.
NR 8
TC 1
Z9 1
U1 0
U2 2
PU TRANS TECH PUBLICATIONS LTD
PI DURNTEN-ZURICH
PA KREUZSTRASSE 10, 8635 DURNTEN-ZURICH, SWITZERLAND
SN 1660-9336
J9 APPL MECH MATER
PY 2012
VL 152-154
BP 1806
EP +
DI 10.4028/www.scientific.net/AMM.152-154.1806
PG 2
WC Engineering, Mechanical; Materials Science, Multidisciplinary; Mechanics
SC Engineering; Materials Science; Mechanics
GA BBL98
UT WOS:000307327300326
ER
PT J
AU Pintar, A
Lu, L
Anderson-Cook, CM
Silver, GL
AF Pintar, Adam
Lu, Lu
Anderson-Cook, Christine M.
Silver, Gary L.
TI Bayesian Estimation of Reliability for Batches of High Reliability
Single-Use Parts
SO QUALITY ENGINEERING
LA English
DT Article
DE batch testing; destructive testing; incorporating expert knowledge; very
high reliability
AB When batches of critical, very high-reliability single-use parts are being produced, rigorous testing is often required to qualify the parts and allow them to be used by the customer. Frequentist and Bayesian approaches are described for predicting the reliability of the remaining subset of the batch, conditional on all of the other tested parts working correctly. Answers from different methods are compared, their strengths and weaknesses are considered, and their robustness to initial assumptions are examined. Some related questions are explored to consider the impact on reliability from different choices of the relative number of the tested and sale units, and the condition for passing the batch from both the manufacturer's and customers' points of view. We describe the approach in the context of automotive air bag inflation devices on most vehicles, but the approach is relevant to batches of single-use parts that have a very high requirement for reliability and must be destructively tested.
C1 [Anderson-Cook, Christine M.] Los Alamos Natl Lab, Stat Sci Grp, Los Alamos, NM 87545 USA.
[Pintar, Adam] Natl Inst Stand & Technol, Gaithersburg, MD 20899 USA.
RP Anderson-Cook, CM (reprint author), Los Alamos Natl Lab, Stat Sci Grp, POB 1663,MS F600, Los Alamos, NM 87545 USA.
EM c-and-cook@lanl.gov
NR 10
TC 3
Z9 3
U1 1
U2 8
PU TAYLOR & FRANCIS INC
PI PHILADELPHIA
PA 325 CHESTNUT ST, SUITE 800, PHILADELPHIA, PA 19106 USA
SN 0898-2112
J9 QUAL ENG
JI Qual. Eng.
PY 2012
VL 24
IS 4
BP 473
EP 485
DI 10.1080/08982112.2012.694334
PG 13
WC Engineering, Industrial; Statistics & Probability
SC Engineering; Mathematics
GA 010VR
UT WOS:000309123100004
ER
PT J
AU Baumgardner, D
Popovicheva, O
Allan, J
Bernardoni, V
Cao, J
Cavalli, F
Cozic, J
Diapouli, E
Eleftheriadis, K
Genberg, PJ
Gonzalez, C
Gysel, M
John, A
Kirchstetter, TW
Kuhlbusch, TAJ
Laborde, M
Lack, D
Muller, T
Niessner, R
Petzold, A
Piazzalunga, A
Putaud, JP
Schwarz, J
Sheridan, P
Subramanian, R
Swietlicki, E
Valli, G
Vecchi, R
Viana, M
AF Baumgardner, D.
Popovicheva, O.
Allan, J.
Bernardoni, V.
Cao, J.
Cavalli, F.
Cozic, J.
Diapouli, E.
Eleftheriadis, K.
Genberg, P. J.
Gonzalez, C.
Gysel, M.
John, A.
Kirchstetter, T. W.
Kuhlbusch, T. A. J.
Laborde, M.
Lack, D.
Mueller, T.
Niessner, R.
Petzold, A.
Piazzalunga, A.
Putaud, J. P.
Schwarz, J.
Sheridan, P.
Subramanian, R.
Swietlicki, E.
Valli, G.
Vecchi, R.
Viana, M.
TI Soot reference materials for instrument calibration and
intercomparisons: a workshop summary with recommendations
SO ATMOSPHERIC MEASUREMENT TECHNIQUES
LA English
DT Article
ID AEROSOL LIGHT-ABSORPTION; LASER-INDUCED INCANDESCENCE; FILTER-BASED
MEASUREMENTS; THERMAL-OPTICAL METHOD; BLACK CARBON; ELEMENTAL CARBON;
PARTICULATE MATTER; DIESEL EXHAUST; THERMAL/OPTICAL ANALYSIS; EXTERNAL
AGGREGATION
AB Soot, which is produced from biomass burning and the incomplete combustion of fossil and biomass fuels, has been linked to regional and global climate change and to negative health problems. Scientists measure the properties of soot using a variety of methods in order to quantify source emissions and understand its atmospheric chemistry, reactivity under emission conditions, interaction with solar radiation, influence on clouds, and health impacts. A major obstacle currently limiting progress is the absence of established standards or reference materials for calibrating the many instruments used to measure the various properties of soot.
The current state of availability and practicability of soot standard reference materials (SRMs) was reviewed by a group of 50 international experts during a workshop in June of 2011. The workshop was convened to summarize the current knowledge on soot measurement techniques, identify the measurement uncertainties and limitations related to the lack of soot SRMs, and identify attributes of SRMs that, if developed, would reduce measurement uncertainties. The workshop established that suitable SRMs are available for calibrating some, but not all, measurement methods. The community of users of the single-particle soot-photometer (SP2), an instrument using laser-induced incandescence, identified a suitable SRM, fullerene soot, but users of instruments that measure light absorption by soot collected on filters did not. Similarly, those who use thermal optical analysis (TOA) to analyze the organic and elemental carbon components of soot were not satisfied with current SRMs. The workshop, and subsequent, interactive discussions, produced a number of recommendations for the development of new SRMs, and their implementation, that would be suitable for the different soot measurement methods.
C1 [Baumgardner, D.] Univ Nacl Autonoma Mexico, Ctr Ciencias Atmosfera, Mexico City 04510, DF, Mexico.
[Popovicheva, O.] State Univ, Moscow, Russia.
[Allan, J.] Univ Manchester, Manchester, Lancs, England.
[Bernardoni, V.; Valli, G.; Vecchi, R.] Univ Milan, Dept Phys, Milan, Italy.
[Bernardoni, V.; Valli, G.; Vecchi, R.] Natl Inst Nucl Phys, Milan, Italy.
[Cao, J.] Chinese Acad Sci, Inst Earth Environm, Xian, Peoples R China.
[Cavalli, F.; Putaud, J. P.] Inst Environm & Sustainabil, Joint Res Ctr, European Commis, Ispra, Italy.
[Cozic, J.] Lab Glaciol & Geophys Environm, St Martin Dheres, France.
[Diapouli, E.; Eleftheriadis, K.] NCSR Demokritos, Inst Nucl Technol & Radiat Protect, ERL, Athens 15310, Greece.
[Genberg, P. J.; Swietlicki, E.] Lund Univ, Div Nucl Phys, S-22100 Lund, Sweden.
[Gonzalez, C.] NIST, Gaithersburg, MD 20899 USA.
[Gysel, M.; Laborde, M.] Paul Scherrer Inst, Lab Atmospher Chem, Villigen, Switzerland.
[John, A.; Kuhlbusch, T. A. J.] IUTA Ev, Air Qual & Sustainable Nanotechnol Unit, Duisburg, Germany.
[Kirchstetter, T. W.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[Kuhlbusch, T. A. J.] Kings Coll London, Environm Res Grp, London WC2R 2LS, England.
[Lack, D.; Schwarz, J.; Sheridan, P.] NOAA, Earth Syst Res Lab, Boulder, CO USA.
[Lack, D.; Schwarz, J.] Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA.
[Mueller, T.] Leibniz Inst Tropospher Res, Leipzig, Germany.
[Niessner, R.] Tech Univ Munich, Munich, Germany.
[Petzold, A.] Deutsch Zentrums Luft & Raumfahrt, Oberpfaffenhofen, Germany.
[Piazzalunga, A.] Univ Milano Bicocca, Dept Environm & Territorial Sci, Milan, Italy.
[Piazzalunga, A.] Univ Milan, Dept Inorgan Metallorgan & Analyt Chem, Milan, Italy.
[Subramanian, R.] RTI, Res Triangle Pk, NC USA.
[Viana, M.] Spanish Res Council CSIC, IDAEA CSIC Inst Environm Assessment & Water Res I, Barcelona, Spain.
RP Baumgardner, D (reprint author), Univ Nacl Autonoma Mexico, Ctr Ciencias Atmosfera, Mexico City 04510, DF, Mexico.
EM darrel.baumgardner@gmail.com
RI Manager, CSD Publications/B-2789-2015; Cao, Junji/D-3259-2014; Lack,
Daniel/I-9053-2012; Petzold, Andreas/J-2347-2012; Allan,
James/B-1160-2010; Subramanian, R/A-4913-2013; Andrea,
Piazzalunga/F-2787-2013; schwarz, joshua/G-4556-2013; Gysel,
Martin/C-3843-2008; Swietlicki, Erik/B-9426-2014; Viana,
Mar/L-5600-2014; Mueller, Thomas/E-5426-2015; Eleftheriadis,
Konstantinos/G-2814-2011
OI Vecchi, Roberta/0000-0002-1666-1802; Bernardoni,
Vera/0000-0003-1054-9489; Cao, Junji/0000-0003-1000-7241; Petzold,
Andreas/0000-0002-2504-1680; Allan, James/0000-0001-6492-4876;
Subramanian, R/0000-0002-5553-5913; schwarz, joshua/0000-0002-9123-2223;
Gysel, Martin/0000-0002-7453-1264; Viana, Mar/0000-0002-4073-3802;
Eleftheriadis, Konstantinos/0000-0003-2265-4905
FU Gesellschaft fur Aerosolforschung (GAeF); Droplet Measurement
Technologies; Sunset Laboratory; Magee Scientific; Russian-Spain
CSIC-RFBR [11-08-93989]
FX The workshop on soot reference materials was sponsored by the
Gesellschaft fur Aerosolforschung (GAeF), Droplet Measurement
Technologies, Sunset Laboratory and Magee Scientific. We would like to
thank these organizations and businesses for their financial and moral
support. We would also like to thank all of the participants for their
valuable feedback during the meeting and afterwards during the
preparation of this review manuscript. O. Popovicheva and M. Viana thank
the Russian-Spain CSIC-RFBR 11-08-93989 project for SRM testing and
travel support.
NR 93
TC 71
Z9 71
U1 9
U2 79
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1867-1381
EI 1867-8548
J9 ATMOS MEAS TECH
JI Atmos. Meas. Tech.
PY 2012
VL 5
IS 8
BP 1869
EP 1887
DI 10.5194/amt-5-1869-2012
PG 19
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 999DD
UT WOS:000308288400002
ER
PT J
AU Ren, X
Mao, J
Brune, WH
Cantrell, CA
Mauldin, RL
Hornbrook, RS
Kosciuch, E
Olson, JR
Crawford, JH
Chen, G
Singh, HB
AF Ren, X.
Mao, J.
Brune, W. H.
Cantrell, C. A.
Mauldin, R. L., III
Hornbrook, R. S.
Kosciuch, E.
Olson, J. R.
Crawford, J. H.
Chen, G.
Singh, H. B.
TI Airborne intercomparison of HOx measurements using laser-induced
fluorescence and chemical ionization mass spectrometry during ARCTAS
SO ATMOSPHERIC MEASUREMENT TECHNIQUES
LA English
DT Article
ID TROPOSPHERIC OH MEASUREMENTS; PEROXY RADICAL MEASUREMENTS; SIMULATION
CHAMBER SAPHIR; PEM-TROPICS-B; HYDROXYL RADICALS; TECHNICAL NOTE;
LOW-PRESSURE; ATMOSPHERIC OXIDATION; MODEL COMPARISONS; DECIDUOUS FOREST
AB The hydroxyl (OH) and hydroperoxyl (HO2) radicals, collectively called HOx, play central roles in tropospheric chemistry. Accurate measurements of OH and HO2 are critical to examine our understanding of atmospheric chemistry. Intercomparisons of different techniques for detecting OH and HO2 are vital to evaluate their measurement capabilities. Three instruments that measured OH and/or HO2 radicals were deployed on the NASA DC-8 aircraft throughout Arctic Research of the Composition of the Troposphere from Aircraft and Satellites (ARCTAS) in the spring and summer of 2008. One instrument was the Penn State Airborne Tropospheric Hydrogen Oxides Sensor (ATHOS) for OH and HO2 measurements based on Laser-Induced Fluorescence (LIF) spectroscopy. A second instrument was the NCAR Selected-Ion Chemical Ionization Mass Spectrometer (SI-CIMS) for OH measurement. A third instrument was the NCAR Peroxy Radical Chemical Ionization Mass Spectrometer (PeRCIMS) for HO2 measurement. Formal intercomparison of LIF and CIMS was conducted for the first time on a same aircraft platform. The three instruments were calibrated by quantitative photolysis of water vapor by ultraviolet (UV) light at 184.9 nm with three different calibration systems. The absolute accuracies were +/- 32% (2 sigma) for the LIF instrument, +/- 65% (2 sigma) for the SI-CIMS instrument, and +/- 50% (2 sigma) for the PeRCIMS instrument. In general, good agreement was obtained between the CIMS and LIF measurements of both OH and HO2 measurements. Linear regression of the entire data set yields [OH](CIMS) = 0.89 x [OH](LIF) + 2.8 x 10(4) cm(-3) with a correlation coefficient r(2) = 0.72 for OH, and [HO2](CIMS) = 0.86 x [HO2](LIF) + 3.9 parts per trillion by volume (pptv, equivalent to pmol mol(-1)) with a correlation coefficient r(2) = 0.72 for HO2. In general, the difference between CIMS and LIF instruments for OH and HO2 measurements can be explained by their combined measurement uncertainties. Comparison with box model results shows some similarities for both the CIMS and LIF measurements. First, the observed-to-modeled HO2 ratio increases greatly for higher NO mixing ratios, indicating that the model may not properly account for HOx sources that correlate with NO. Second, the observed-to-modeled OH ratio increases with increasing isoprene mixing ratios, suggesting either incomplete understanding of isoprene chemistry in the model or interferences in the measurements in environments where biogenic emissions dominate ambient volatile organic compounds.
C1 [Ren, X.] NOAA, Air Resources Lab, Silver Spring, MD 20910 USA.
[Mao, J.] NOAA, Geophys Fluid Dynam Lab, Princeton, NJ USA.
[Brune, W. H.] Penn State Univ, Dept Meteorol, University Pk, PA 16802 USA.
[Cantrell, C. A.; Mauldin, R. L., III; Hornbrook, R. S.; Kosciuch, E.] Natl Ctr Atmospher Res, Div Atmospher Chem, Boulder, CO 80307 USA.
[Olson, J. R.; Crawford, J. H.; Chen, G.] NASA, Sci Directorate, Langley Res Ctr, Hampton, VA USA.
[Singh, H. B.] NASA, Div Earth Sci, Ames Res Ctr, Moffett Field, CA USA.
RP Ren, X (reprint author), NOAA, Air Resources Lab, Silver Spring, MD 20910 USA.
EM xinrong.ren@noaa.gov
RI Mao, Jingqiu/F-2511-2010; Crawford, James/L-6632-2013; Ren,
Xinrong/E-7838-2015;
OI Mao, Jingqiu/0000-0002-4774-9751; Crawford, James/0000-0002-6982-0934;
Ren, Xinrong/0000-0001-9974-1666; Hornbrook, Rebecca/0000-0002-6304-6554
FU NASA Tropospheric Chemistry Program [NNH07ZDA001N-ARCTAS, NNX08AH67G]
FX This work was supported by the NASA Tropospheric Chemistry Program
(NNH07ZDA001N-ARCTAS and NNX08AH67G). The authors thank the DC-8
management, crew, and support staff during the ARCTAS preparation and
deployment, other ARCTAS research groups for the use of their data in
the model, and D. M. Shelow, A. Ortega, and L. Zhang for help in the
field and laboratory experiments. The authors also thank the editor and
the two anonymous reviewers for providing valuable comments.
NR 63
TC 14
Z9 14
U1 5
U2 52
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1867-1381
J9 ATMOS MEAS TECH
JI Atmos. Meas. Tech.
PY 2012
VL 5
IS 8
BP 2025
EP 2037
DI 10.5194/amt-5-2025-2012
PG 13
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 999DD
UT WOS:000308288400012
ER
PT J
AU Brown, SS
Stutz, J
AF Brown, Steven S.
Stutz, Jochen
TI Nighttime radical observations and chemistry
SO CHEMICAL SOCIETY REVIEWS
LA English
DT Review
ID SECONDARY ORGANIC AEROSOL; MARINE BOUNDARY-LAYER; GAS-PHASE REACTION;
RING-DOWN SPECTROSCOPY; DIFFERENTIAL OPTICAL-ABSORPTION; LASER-INDUCED
FLUORESCENCE; SULFURIC-ACID-SOLUTIONS; IN-SITU MEASUREMENT; SEA-SALT
AEROSOL; IONIZATION MASS-SPECTROMETRY
AB The nitrate radical, NO3, is photochemically unstable but is one of the most chemically important species in the nocturnal atmosphere. It is accompanied by the presence of dinitrogen pentoxide, N2O5, with which it is in rapid thermal equilibrium at lower tropospheric temperatures. These two nitrogen oxides participate in numerous atmospheric chemical systems. NO3 reactions with VOCs and organic sulphur species are important, or in some cases even dominant, oxidation pathways, impacting the budgets of these species and their degradation products. These oxidative reactions, together with the ozonolysis of alkenes, are also responsible for the nighttime production and cycling of OH and peroxy (HO2 + RO2) radicals. In addition, reactions of NO3 with biogenic hydrocarbons are particularly efficient and are responsible for the production of organic nitrates and secondary organic aerosol. Heterogeneous chemistry of N2O5 is one of the major processes responsible for the atmospheric removal of nitrogen oxides as well as the cycling of halogen species though the production of nitryl chloride, ClNO2. The chemistry of NO3 and N2O5 is also important to the regulation of both tropospheric and stratospheric ozone. Here we review the essential features of this atmospheric chemistry, along with field observations of NO3, N2O5, nighttime peroxy and OH radicals, and related compounds. This review builds on existing reviews of this chemistry, and encompasses field, laboratory and modelling work spanning more than three decades.
C1 [Brown, Steven S.] NOAA Earth Syst Res Lab, Boulder, CO 80305 USA.
[Stutz, Jochen] Univ Calif Los Angeles, Dept Atmospher & Ocean Sci, Los Angeles, CA 90095 USA.
RP Brown, SS (reprint author), NOAA Earth Syst Res Lab, 325 Broadway, Boulder, CO 80305 USA.
EM steven.s.brown@noaa.gov; jochen@atmos.ucla.edu
RI Brown, Steven/I-1762-2013; Stutz, Jochen/K-7159-2014; Manager, CSD
Publications/B-2789-2015
NR 486
TC 78
Z9 81
U1 24
U2 238
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 0306-0012
EI 1460-4744
J9 CHEM SOC REV
JI Chem. Soc. Rev.
PY 2012
VL 41
IS 19
BP 6405
EP 6447
DI 10.1039/c2cs35181a
PG 43
WC Chemistry, Multidisciplinary
SC Chemistry
GA 002TP
UT WOS:000308559100008
PM 22907130
ER
PT J
AU Fiore, AM
Naik, V
Spracklen, DV
Steiner, A
Unger, N
Prather, M
Bergmann, D
Cameron-Smith, PJ
Cionni, I
Collins, WJ
Dalsoren, S
Eyring, V
Folberth, GA
Ginoux, P
Horowitz, LW
Josse, B
Lamarque, JF
MacKenzie, IA
Nagashima, T
O'Connor, FM
Righi, M
Rumbold, ST
Shindell, DT
Skeie, RB
Sudo, K
Szopa, S
Takemura, T
Zeng, G
AF Fiore, Arlene M.
Naik, Vaishali
Spracklen, Dominick V.
Steiner, Allison
Unger, Nadine
Prather, Michael
Bergmann, Dan
Cameron-Smith, Philip J.
Cionni, Irene
Collins, William J.
Dalsoren, Stig
Eyring, Veronika
Folberth, Gerd A.
Ginoux, Paul
Horowitz, Larry W.
Josse, Beatrice
Lamarque, Jean-Francois
MacKenzie, Ian A.
Nagashima, Tatsuya
O'Connor, Fiona M.
Righi, Mattia
Rumbold, Steven T.
Shindell, Drew T.
Skeie, Ragnhild B.
Sudo, Kengo
Szopa, Sophie
Takemura, Toshihiko
Zeng, Guang
TI Global air quality and climate
SO CHEMICAL SOCIETY REVIEWS
LA English
DT Review
ID SECONDARY ORGANIC AEROSOL; FINE PARTICULATE MATTER; UNITED-STATES
IMPLICATIONS; US ANTHROPOGENIC AEROSOLS; METHANE EMISSION CONTROLS;
TROPICAL ATLANTIC-OCEAN; BLACK CARBON AEROSOLS; EUROPEAN HEAT-WAVE;
NEAR-SURFACE OZONE; TROPOSPHERIC OZONE
AB Emissions of air pollutants and their precursors determine regional air quality and can alter climate. Climate change can perturb the long-range transport, chemical processing, and local meteorology that influence air pollution. We review the implications of projected changes in methane (CH4), ozone precursors (O-3), and aerosols for climate (expressed in terms of the radiative forcing metric or changes in global surface temperature) and hemispheric-to-continental scale air quality. Reducing the O-3 precursor CH4 would slow near-term warming by decreasing both CH4 and tropospheric O-3. Uncertainty remains as to the net climate forcing from anthropogenic nitrogen oxide (NOx) emissions, which increase tropospheric O-3 (warming) but also increase aerosols and decrease CH4 (both cooling). Anthropogenic emissions of carbon monoxide (CO) and non-CH4 volatile organic compounds (NMVOC) warm by increasing both O-3 and CH4. Radiative impacts from secondary organic aerosols (SOA) are poorly understood. Black carbon emission controls, by reducing the absorption of sunlight in the atmosphere and on snow and ice, have the potential to slow near-term warming, but uncertainties in coincident emissions of reflective (cooling) aerosols and poorly constrained cloud indirect effects confound robust estimates of net climate impacts. Reducing sulfate and nitrate aerosols would improve air quality and lessen interference with the hydrologic cycle, but lead to warming. A holistic and balanced view is thus needed to assess how air pollution controls influence climate; a first step towards this goal involves estimating net climate impacts from individual emission sectors. Modeling and observational analyses suggest a warming climate degrades air quality (increasing surface O-3 and particulate matter) in many populated regions, including during pollution episodes. Prior Intergovernmental Panel on Climate Change (IPCC) scenarios (SRES) allowed unconstrained growth, whereas the Representative Concentration Pathway (RCP) scenarios assume uniformly an aggressive reduction, of air pollutant emissions. New estimates from the current generation of chemistry-climate models with RCP emissions thus project improved air quality over the next century relative to those using the IPCC SRES scenarios. These two sets of projections likely bracket possible futures. We find that uncertainty in emission-driven changes in air quality is generally greater than uncertainty in climate-driven changes. Confidence in air quality projections is limited by the reliability of anthropogenic emission trajectories and the uncertainties in regional climate responses, feedbacks with the terrestrial biosphere, and oxidation pathways affecting O-3 and SOA.
C1 [Fiore, Arlene M.] Columbia Univ, Dept Earth & Environm Sci, Palisades, NY USA.
[Fiore, Arlene M.] Columbia Univ, Lamont Doherty Earth Observ, Palisades, NY USA.
[Naik, Vaishali] NOAA, UCAR Geophys Fluid Dynam Lab, Princeton, NJ USA.
[Spracklen, Dominick V.] Univ Leeds, Sch Earth & Environm, Leeds, W Yorkshire, England.
[Steiner, Allison] Univ Michigan, Dept Atmospher Ocean & Space Sci, Ann Arbor, MI 48109 USA.
[Unger, Nadine] Yale Univ, Sch Forestry & Environm Studies, New Haven, CT 06511 USA.
[Prather, Michael] Univ Calif Irvine, Dept Earth Syst Sci, Irvine, CA USA.
[Bergmann, Dan; Cameron-Smith, Philip J.] Lawrence Livermore Natl Lab, Livermore, CA USA.
[Cionni, Irene] Agenzia Nazl Nuove Tecnol Energia & Sviluppo Econ, Bologna, Italy.
[Collins, William J.; Folberth, Gerd A.; O'Connor, Fiona M.; Rumbold, Steven T.] Hadley Ctr, Met Off, Exeter, Devon, England.
[Dalsoren, Stig; Skeie, Ragnhild B.] Ctr Int Climate & Environm, CICERO, Oslo, Norway.
[Eyring, Veronika; Righi, Mattia] Deutsch Zentrum Luft & Raumfahrt DLR, Inst Phys Atmosphare, Oberpfaffenhofen, Germany.
[Ginoux, Paul; Horowitz, Larry W.] NOAA, Geophys Fluid Dynam Lab, Princeton, NJ USA.
[Josse, Beatrice] CNRS Ctr Natl Rech Meteorol, Meteo France, GAME CNRM, Toulouse, France.
[Lamarque, Jean-Francois] Natl Ctr Atmospher Res, Boulder, CO 80307 USA.
[MacKenzie, Ian A.] Univ Edinburgh, Sch GeoSci, Edinburgh EH8 9YL, Midlothian, Scotland.
[Nagashima, Tatsuya] Natl Inst Environm Studies, Tsukuba, Ibaraki, Japan.
[Shindell, Drew T.] NASA, Goddard Inst Space Studies, New York, NY 10025 USA.
[Sudo, Kengo] Nagoya Univ, Nagoya, Aichi 4648601, Japan.
[Szopa, Sophie] CEA CNRS UVSQ, Lab Sci Climat & Environm LSCE IPSL, Gif Sur Yvette, France.
[Takemura, Toshihiko] Kyushu Univ, Appl Mech Res Inst, Fukuoka 8168580, Japan.
[Zeng, Guang] Natl Inst Water & Atmospher Res, Lauder, New Zealand.
RP Fiore, AM (reprint author), Columbia Univ, Dept Earth & Environm Sci, Palisades, NY USA.
EM amfiore@ldeo.columbia.edu
RI Lamarque, Jean-Francois/L-2313-2014; Kyushu, RIAM/F-4018-2015; Skeie,
Ragnhild/K-1173-2015; Unger, Nadine/M-9360-2015; U-ID,
Kyushu/C-5291-2016; Eyring, Veronika/O-9999-2016; Shindell,
Drew/D-4636-2012; Collins, William/A-5895-2010; Takemura,
Toshihiko/C-2822-2009; Szopa, Sophie/F-8984-2010; Horowitz,
Larry/D-8048-2014; Ginoux, Paul/C-2326-2008; Bergmann,
Daniel/F-9801-2011; Folberth, Gerd/F-7376-2010; Cameron-Smith,
Philip/E-2468-2011; Steiner, Allison/F-4942-2011; mackenzie,
ian/E-9320-2013; Righi, Mattia/I-5120-2013; Spracklen,
Dominick/B-4890-2014; Naik, Vaishali/A-4938-2013
OI Lamarque, Jean-Francois/0000-0002-4225-5074; Skeie,
Ragnhild/0000-0003-1246-4446; Eyring, Veronika/0000-0002-6887-4885;
Folberth, Gerd/0000-0002-1075-440X; Righi, Mattia/0000-0003-3827-5950;
Collins, William/0000-0002-7419-0850; Takemura,
Toshihiko/0000-0002-2859-6067; Szopa, Sophie/0000-0002-8641-1737;
Horowitz, Larry/0000-0002-5886-3314; Ginoux, Paul/0000-0003-3642-2988;
Bergmann, Daniel/0000-0003-4357-6301; Cameron-Smith,
Philip/0000-0002-8802-8627; Naik, Vaishali/0000-0002-2254-1700
FU NASA Air Quality Applied Science Team (AQAST) [NNX12AF15G]; UK National
Environment Research Council (NERC) [NE/G015015/1]; Joint DECC and Defra
Integrated Climate Programme [GA01101]; Natural Environment Research
Council; DLR Earth System Model Validation (ESMVal) Project; New Zealand
Ministry of Science and Innovation; National Science Foundation; Office
of Science (BER) of the US Department of Energy; Office of Science (BER)
of the U.S. Dept. of Energy [DE-AC52-07NA27344, DE-AC02-05CH11231]
FX We thank K.-D. Gottschaldt and F. Dentener for useful comments on
earlier versions and O. Wild for providing text files of the TF HTAP
model projections for 2030 and 2050. Funding is acknowledged from: the
NASA Air Quality Applied Science Team (AQAST) (NNX12AF15G) to AMF; the
UK National Environment Research Council (NERC) (NE/G015015/1) to DVS;
the Joint DECC and Defra Integrated Climate Programme (GA01101) to WJC,
GAF, FMO and SR; the Natural Environment Research Council to IAM; the
DLR Earth System Model Validation (ESMVal) Project (VE, MR); New Zealand
Ministry of Science and Innovation for funding and NIWA HPC facility
(GZ). The CESM project is supported by the National Science Foundation
and the Office of Science (BER) of the US Department of Energy. The
National Center for Atmospheric Research is operated by the University
Corporation for Atmospheric Research under sponsorship of the National
Science Foundation. The work by LLNL was performed under Contract
DE-AC52-07NA27344 and used the computing resources of NERSC, which is
supported by the Office of Science (BER) of the U.S. Dept. of Energy
under Contract DE-AC02-05CH11231.
NR 364
TC 131
Z9 136
U1 30
U2 324
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 0306-0012
EI 1460-4744
J9 CHEM SOC REV
JI Chem. Soc. Rev.
PY 2012
VL 41
IS 19
BP 6663
EP 6683
DI 10.1039/c2cs35095e
PG 21
WC Chemistry, Multidisciplinary
SC Chemistry
GA 002TP
UT WOS:000308559100017
PM 22868337
ER
PT J
AU Kelly, GE
Bushby, ST
AF Kelly, George E.
Bushby, Steven T.
TI Are intelligent agents the key to optimizing building HVAC system
performance?
SO HVAC&R RESEARCH
LA English
DT Article
AB This article describes the development and implementation of a simulation testbed used to study the concept of employing intelligent agents to optimize the performance of building HVAC systems. One-day simulated cost savings results are presented for intelligent agents employing both a simple optimization method and an advanced optimization method. The potential benefits and problems associated with each method are discussed, and recommendations are made for future research efforts leading to the application of intelligent agents in real building.
C1 [Kelly, George E.; Bushby, Steven T.] NIST, Engn Lab, Bldg Environm Div, Gaithersburg, MD 20199 USA.
RP Bushby, ST (reprint author), NIST, Engn Lab, Bldg Environm Div, 100 Bur Dr,Stop 8631, Gaithersburg, MD 20199 USA.
EM steven.bushby@nist.gov
NR 11
TC 3
Z9 3
U1 0
U2 5
PU TAYLOR & FRANCIS INC
PI PHILADELPHIA
PA 325 CHESTNUT ST, SUITE 800, PHILADELPHIA, PA 19106 USA
SN 1078-9669
J9 HVAC&R RES
JI HVAC&R Res.
PY 2012
VL 18
IS 4
BP 750
EP 759
DI 10.1080/10789669.2012.682693
PG 10
WC Thermodynamics; Construction & Building Technology; Engineering,
Mechanical
SC Thermodynamics; Construction & Building Technology; Engineering
GA 996YG
UT WOS:000308130100017
ER
PT S
AU Eppeldauer, GP
Podobedov, VB
AF Eppeldauer, George P.
Podobedov, V. B.
BE Holst, GC
Krapels, KA
TI PV-MCT working standard radiometer
SO INFRARED IMAGING SYSTEMS: DESIGN, ANALYSIS, MODELING, AND TESTING XXIII
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Infrared Imaging Systems - Design, Analysis, Modeling, and
Testing XXIII
CY APR 24-26, 2012
CL Baltimore, MD
SP SPIE
DE current responsivity; infra