Question

what is Digital elevation moden?​

Answer 1

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Digital Elevation Model (DEM) is the digital representation of the land surface elevation with respect to any reference datum. DEM is frequently used to refer to any digital representation of a topographic surface.

DEM is the simplest form of digital representation of topography

Answer 2

Answer:

Digital Elevation Model (DEM) is the digital representation of the land surface elevation with respect to any reference datum. DEM is frequently used to refer to any digital representation of a topographic surface.