The basic input data for the production of the DEM were contours with a good density (10-m contour interval, as well as 4 or 2 m in some specific regions), together with elevation points and drainage network.
The basic input data for the production of theDEM were contours with a good density (10-mcontour interval, as well as 4 or 2 m in some specificregions), together with elevation points and drainagenetwork.