Lidar america, aerial surveying, lidar, photogrammetry

Digital Elevation Model

Digital Elevation Model (DEM)

A topographic model of the bare earth - terrain relief. The data files contain the spatial elevation data of the terrain in a digital format.

dem lidar
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A digital elevation model (DEM) can be described as a three-dimensional representation of a terrain surface consisting of X, Y, Z coordinates stored in digital form, excluding any other non-terrain feature.

Using elevation models, features such as scarps, steep slope units, lobed accumulation zones, and uneven topography can be enhanced to allow delineation and classification of landslides.

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