![]() Is the file format you have not listed here? Contact us and/or consult lists of all raster and DEM file formats supported by ArcGIS Desktop, ArcGIS Pro, Global Mapper, and QGIS. ![]() DTMs: digital terrain models are either synonymous with DEMs or comprised of a network of vector points instead of a continuous raster.DSMs: digital surface models represent the reflective surface of the earth (bare earth plus trees, buildings).DEMs: digital elevation models represent the land or "bare earth" (no trees, buildings, etc.).There are a few terms that may be encountered that have subtle but key differences: txt, and you can derive lots of other information - like contours or 3D surface models - from them. They come in a variety of file formats, from. DEMs are files that contain either points (vector) or pixels (raster), with each point or pixel having an elevation value.
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