Thursday, April 17, 2014

DEM


DEM maps are a digital elevation model of a terrain's surface. This map shows the a DEM image of the Sahara desert, with the use of contour lines mapping out elevation levels amongst the desert's surface. DEM representations can include terrains of the Earth, Moon, asteroids, etc. DEM maps represent how accurate the elevation is, including factors such as terrain roughness, grid resolution, and vertical resolution. 

No comments:

Post a Comment