Saturday, July 16, 2011

Digital Elevation Model (DEM)

http://earthguide.ucsd.edu/earthguide/maps/reliefmapca.htm

The map above is what is known as a Digital Elevation Model. The DEM maps are used to illustrate the various levels of elevation of a given area or location. Most of these maps incorporate colors and various angles for which they allow the viewer to visualize the different elevations of the mapped area. This DEM is of the stste of California, and what it shows is the different levels of elevation throughout the state. The different levels can be viewed in feet and meters and are represented by different colors. This is the main interest of the map which shows all of the different elevations across the state of Califorina.

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