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NAME

r.vector.ruggedness - Vector Ruggedness Measure

KEYWORDS

SYNOPSIS

r.vector.ruggedness
r.vector.ruggedness --help
r.vector.ruggedness [-p] elevation=name[,name,...] [size=integer] output=name[,name,...] [--overwrite] [--help] [--verbose] [--quiet] [--ui]

Flags:

-p
Do not run in parallel
--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:

elevation=name[,name,...] [required]
DEM Raster Input
Name of input raster map(s)
size=integer
Size of neighbourhood
Default: 3
output=name[,name,...] [required]
Vector Ruggedness Index Output
Name for output raster map(s)

Table of contents

DESCRIPTION

r.vector.ruggedness represents a measurement of terrain ruggedness based on the methodology conceived by Sappington et al. (2007). The measure is calculated by decomposing slope and aspect into 3-dimensional vectors, and calculating the resultant vector magnitude within a user-specified moving window size, using r.neighbors. The user can specify neighborhood size to measure ruggedness across larger landscale scales. Neighborhood operations are performed using a rectangular window shape.

NOTES

This script was adapted from the original Sappington et al. (2007) script.

EXAMPLE

r.vector.ruggedness elevation=srtm wsize=5 output=vrm

REFERENCES

Sappington, J.M., K.M. Longshore, and D.B. Thomson. 2007. Quantifying Landscape Ruggedness for Animal Habitat Analysis: A case Study Using Bighorn Sheep in the Mojave Desert. Journal of Wildlife Management. 71(5): 1419 -1426.

AUTHOR

Steven Pawley

Last changed: $Date: 2016-02-20 14:37:38 +0100 (Sat, 20 Feb 2016) $

SOURCE CODE

Available at: r.vector.ruggedness source code (history)


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