r.usler - GRASS GIS manual

Note: This document is for an older version of GRASS GIS that has been discontinued. You should upgrade, and read the current manual page.

NAME

r.usler - 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=name [required]: Name of annual precipitation raster map [mm/year]
output=name [required]: Name for output USLE R raster map [MJ.mm/ha.hr.year]
method=string [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
NOTES
EXAMPLE
SEE ALSO
AUTHORS

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).