i.rh - GRASS GIS manual

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

DESCRIPTION
NOTES
REFERENCES
SEE ALSO
AUTHOR

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/

AUTHOR

Yann Chemin, Plumergat, France

SOURCE CODE

Available at: i.rh source code (history)