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)
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.
This script was adapted from the original Sappington et al. (2007)
script.
r.vector.ruggedness elevation=srtm wsize=5 output=vrm
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.
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)
Main index |
Raster index |
Topics index |
Keywords index |
Graphical index |
Full index
© 2003-2018
GRASS Development Team,
GRASS GIS 7.4.1svn Reference Manual