ST_ROUGHNESS
Returns a raster with the calculated "roughness" of a DEM.
raster ST_ROUGHNESS
raster rast
integer nband
raster ST_ROUGHNESS
raster rast
integer nband
customextent=NULL raster
text pixeltype="32BF"
boolean interpolate_nodata=FALSE
Description
Calculates the "roughness" of a DEM, by subtracting the maximum from the minimum for a given area.
Availability: 2.1