USGS Science Topics: DEM

DEM

Digital Elevation Model. A geospatial dataset describing topography in an area. The name refers also to a type of digital product provided by USGS.

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Topography(describes)

The shape of the land surface.

Geospatial datasets(instance of)

Collections of related digital information that are geographically referenced.

Maps and atlases(contribute to)

Representation, usually on a flat surface, of a part or whole of the Earth or other parts of the universe. Collections of maps linked digitally or bound together in a book are called atlases.