Tuesday, November 10, 2009

Lab 6: DEMs in ArcGIS

Original Map


Hillshade Model


Slope Map


Aspect Map


3D Image from 4 Different Angles






The area I selected for this lab exercise was Southern California, near San Bernadino. The area is very mountainous and elevated. There are dramatic peaks and deep canyons. Finding a color sample was difficult because some of the options made it even harder to see where the elevation was, but I found a 2-tone option to work best, and be the least confusing. Despite Jida's help, I still couldn't get the slope to work on my map.

Extent:
Top- -708533.691392
Left- 350085.661453
Right- 376937.393622
Bottom- -722333.745495

The Datum is North American 1983.

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