r.usler.1grass - Man Page

Computes USLE R factor, Rainfall erosivity index.

Keywords

raster, hydrology, rainfall, soil, erosion

Synopsis

r.usler r.usler --help r.usler input=name output=name method=string [--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

input=nameÂ [required]: Name of annual precipitation raster map [mm/year]
output=nameÂ [required]: Name for output USLE R raster map [MJ.mm/ha.hr.year]
method=stringÂ [required]: Name of USLE R equation
Options: roose, morgan, foster, elswaify
Default: morgan
roose: Roosle (1975)
morgan: Morgan (1974)
foster: Foster (1981)
elswaify: El-Swaify (1985)

Description

r.usler calculates USLE R factor for Rainfall erosivity. It enables several empirical equations: Roosle (1975), Morgan (1974), Foster(1981) and El-Swaify (1985).