DESCRIPTION

r.prominence calculates the average difference between a central cell and its neighbors. It approximated the terrain 'ruggedness' by looking at average differences in elevation within a given neighborhood The radius is specified in number of map rows/columns.

EXAMPLE

Spearfish region:

g.region rast=elevation.10m

# get region rows/columns
g.region -g

# calculate prominence (radius of 500 map rows)
r.prominence in=elevation.10m out=prominence radius=500

# visualize over shaded DEM
r.shaded.relief elevation.10m
d.mon x0
d.his i=elevation.10m.shade h=prominence

AUTHOR

Benjamin Ducke (benjamin.ducke - oxfordarch.co.uk)

Last changed: $Date$