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Tuesday, November 8, 2011

DEMs in ArcGIS

Spatial Reference: GCS North American Datum of 1983

A one paragraph description of the area you selected and the extent information (in decimal degrees), as well as the information about the geographic coordinate system:

     This map describes the topography of an area near Jacksonville, Florida. The geographic coordinate system used in the map is taken from the North American Datum of 1983. The topography of the region itself is more level than mountainous. This makes sense because Florida has a wetland climate, which is characteristic to areas at sea-level. I find it very interesting that at least 4 maps are needed to describe the topography of the region. This is due to map abstraction and exclusion of important data.

Extent Coordinates
North: 28.62769 degrees
West: -81.48482 degrees
South: 28.42422 degrees
East: -81.27167 degrees




Shaded Relief Map
Slope Map

Aspect Map

3D Rendering of Region




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