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Digital Elevation Model
météor.	modelo de elevación digital
digital elevation model
envir., agric.	modelo digital para curvas de nivel
Anglais glossaire
Digital Elevation Model
abrév., astr., milit.	DEM
digital elevation model
aviat.	The representation of terrain surface by continuous elevation values at all intersections of a defined grid, referenced to common datum. (Digital Terrain Model (DTM) is sometimes referred to as DEM.)