Linked from
The 18 pages that link to Digital elevation model, each with the reason it gives.
LiDARRelated: LiDAR-derived ground points can be processed into elevation models.
PhotogrammetryRelated: Image-derived elevation supplies a core mapping product.
Volcanic hazard mapRelated: Terrain data help model where flows may travel and where they may stop.
TopographyRelated: Elevation grids encode topography for analysis and visualization.
LandformRelated: Elevation data help classify landforms and model water flow across them.
Hydrological modelingRelated: Elevation data help define drainage pathways and catchment boundaries.
OrographyRelated: Elevation models let orographers measure and visualize terrain across broad areas.
Height above mean sea levelRelated: Its elevation values depend on the vertical datum used.