Concept information
PREFERRED TERM
DIGITAL ELEVATION/DIGITAL TERRAIN MODELS
DEFINITION
- Models that represent continuous elevation values over a topographic surface by a regular array of z-values, referenced to a common datum. Digital Elevation Models (DEM) and Digital Terrain Models (DTM) are used to predict the topography and terrain over a given land surface.
BROADER CONCEPT
URI
https://gcmd.earthdata.nasa.gov/kms/concept/e5f94c93-e8af-4919-827f-9059dab9cf27
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