Tuesday, February 18, 2014

3. Topographic map

http://en.wikipedia.org/wiki/Topographic_map
In direct contrast to the previously discussed planimetric maps, a topographic map show horizontal and vertical relief positions of the features.This map utilizes contour lines to depict shape and elevation on the area. The terrain can be seen in a 3D aspect versus 2D. There are two types of topographic maps: contour and shaded-relief. The contour map (which is the type shown in this example) is the most common type to show so that all topographical features can be shown. For example: slopes, depressions, ridges, cliffs, etc. This map is characterized by large-scale detail and takes into account natural and man-made features of the terrain as depicted above.

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