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: $Date$