Data Sources 5 Free Global DEM Data Sources – Digital Elevation Models Want to elevate your chances of finding a digital elevation model? Sure you do. You should dive into our list of free global DEM data sources.
GIS Analysis DEM, DSM & DTM Differences – A Look at Elevation Models in GIS We explore the differences between DEM (bare earth), DSM (natural and built environment) and DTM (vector contours and regularly-spaced points).
