r.usler.1grass man page

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.

See Also

r.uslek, r.watershed

Authors

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

Last changed: $Date: 2014-11-24 18:22:17 +0100 (Mon, 24 Nov 2014) $

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GRASS 7.0.4 Grass User's Manual