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NAME

i.rh - Water in atmosphere: relative humidity, water vapour (saturated, actual)

KEYWORDS

imagery, atmosphere, humidity, water vapour, precipitable water

SYNOPSIS

i.rh
i.rh --help
i.rh [-sae] pw=name pa=name ta=name dem=name output=name [--overwrite] [--help] [--verbose] [--quiet] [--ui]

Flags:

-s
Output the saturated water vapour (esat)
-a
Output the actual water vapour (eact)
-e
Output the atmospheric emissivity (eatm)
--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:

pw=name [required]
Name of the Precipitable Water layer
pa=name [required]
Name of the Atmospheric Pressure layer
ta=name [required]
Name of the mean daily air temperature layer
dem=name [required]
Name of the elevation layer
output=name [required]
Name of the output layer

Table of contents

DESCRIPTION

i.rh calculates the relative humidity -s will return saturated water vapour instead. -a will return actual water vapour instead.

NOTES

REFERENCES

https://www.researchgate.net/publication/227247013_High-resolution_Surface_Relative_Humidity_Computation_Using_MODIS_Image_in_Peninsular_Malaysia/

SEE ALSO

i.vi
i.albedo
i.vi

AUTHOR

Yann Chemin, Plumergat, France

SOURCE CODE

Available at: i.rh source code (history)


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© 2003-2019 GRASS Development Team, GRASS GIS 7.8.2dev Reference Manual