Analyze and visualize digital elevation models (DEM).
Compute the hillshade of a DEM
gdaldem hillshade path/to/input.tif path/to/output.tif
Compute the slope of a DEM
gdaldem slope path/to/input.tif path/to/output.tif
Compute the aspect of a DEM
gdaldem aspect path/to/input.tif path/to/output.tif