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NAME

i.wi - Calculates different types of water indices.

KEYWORDS

imagery, water, index, biophysical

SYNOPSIS

i.wi
i.wi --help
i.wi winame=type [blue=name] [green=name] [red=name] [nir=name] [band5=name] [band7=name] output=name [--overwrite] [--help] [--verbose] [--quiet] [--ui]

Flags:

--overwrite
Allow output files to overwrite existing files
--help
Print usage summary
--verbose
Verbose module output
--quiet
Quiet module output
--ui
Force launching GUI dialog

Parameters:

winame=type [required]
Type of water index
Options: awei_ns, awei_s, lswi, ndwi_mf, ndwi_x, tcw, wi
Default: lswi
awei_ns: Automated Water Extraction Index - No Shadow
awei_s: Automated Water Extraction Index - Shadow
lswi: Land Soil Water Index
ndwi_mf: Normalized Difference Water Index - Mc Feeters
ndwi_x: Normalized Difference Water Index - Xu
tcw: Tasseled Cap Water
wi: Water Index
blue=name
Name of input blue channel surface reflectance map
Range: [0.0;1.0]
green=name
Name of input green channel surface reflectance map
Range: [0.0;1.0]
red=name
Name of input red channel surface reflectance map
Range: [0.0;1.0]
nir=name
Name of input nir channel surface reflectance map
Range: [0.0;1.0]
band5=name
Name of input 5th channel surface reflectance map
Range: [0.0;1.0]
band7=name
Name of input 7th channel surface reflectance map
Range: [0.0;1.0]
output=name [required]
Name of the output wi layer

Table of contents

DESCRIPTION

i.wi calculates water indices based on biophysical parameters.

NOTES

Requirements (as of Landsat 5TM bands)

TODO

Find other water indices and add them.

REFERENCES