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Digital elevation model - Wikipedia
A digital elevation model (DEM) is a 3D computer graphics representation of elevation data to represent terrain, commonly of a planet, moon, or asteroid.
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What is a digital elevation model (DEM)? - USGS.gov
A Digital Elevation Model (DEM) is a representation of the bare ground (bare earth) topographic surface of the Earth excluding trees, buildings, ...
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Screening Tools - DBP
18 Nov 2020 — PHQ (Patient Health Questionnaire) & Scoring Self-administered adult screen for anxiety, depression, alcohol, eating. Many languages available.
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