Concept information
Preferred term
digital elevation model
Definition
- A digital elevation model (DEM) is the data used by a geographic information system (GIS) to represent the shape of part of the earth's surface. It usually refers to data in raster format where each raster cell stores the height of the ground above sea level or some known datum. [Source: Encyclopedia of Geographic Information Science; Digital Elevation Model]
Broader concept
Belongs to group
URI
http://data.loterre.fr/ark:/67375/N9J-S22054MC-4
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