www.dpi.vic.gov.au/.../digital_elevation_models
Digital Elevation Models provide a snapshot of the land. A Digital Elevation Model (DEM) is best described as a spatially geo-referenced data set that is a popular way of encoding the topography for environmental modelling purposes. Different models can be used to plot roads, railroads, buildings and communities. DEM's are built using remote sensing techniques. The above model shows slope, elevation and aspect of the land being studied.
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