UN-GGIM Definition: Digital Elevation Models (DEMs) describing the land surface and underwater depth (bathymetry).
SPHERE Mapping
Terrestrial elevation is Geosphere landform and topography (DEMs, DTMs, DSMs). Underwater depth (bathymetry) creates a thread to Hydrosphere marine. See also ISO Elevation and INSPIRE Elevation.
Primary sphere: Geosphere Subsphere(s): geosphere_landform_topography
Cross-Domain Connections (Threads)
This theme bridges multiple SPHERE domains:
- Primary: Geosphere
- Thread → Hydrosphere
Harvesting Hints
Keywords: DEM, DTM, DSM, elevation, depth, bathymetry, LiDAR, contour, terrain. National elevation data typically available through mapping agencies.