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

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

NOTES

r.watershed provides for USLE L, S, LS factors.

EXAMPLE

TBD.

AUTHORS

Natialia Medvedeva, SIC-ISDC, Ashgabat, Turkmenistan
Yann Chemin, SIC-ISDC, Ashgabat, Turkmenistan

Last changed: $Date: 2014-11-24 18:22:45 +0100 (Mon, 24 Nov 2014) $

SOURCE CODE

Available at: r.usler source code (history)

GRASS 7.6.0