Thursday, May 24, 2012

Lab 6: DEMs in ArcGIS

 
The following is the DEM Data of Grand Canyon. As one of the seven natural wonders of the world, Grand Canyon is a steep-sided canyon carved by the Colorado River in the United States in the state of Arizona. Because it has such drastic change in elevations due to the fissure, it was a good choice to do analysis on the elevation data. The Range of elevation changes are conspicuous in the 3D model of the area. The Shaded Relief Model shows the layout of the region, we can easily spot where the Colorado River flows through. The Slope map shows where the most drastic changes of slope are located. Finally, the Aspect map makes it clear to spot the vastness of the Grand Canyon visible in all directions. The four images gives us a vivid picture regarding the region about the geographical features of Grand Canyon.


----Extent----
Top: 36.4361111103
Left: -112.407222223
Right: -111.689444445
Bottom: 35.8655555548

---Geographic Coordinate System---
GCS_North_American_1983
Angular Unit: Degree (0.017453292519943295)
Datum: D_North_American_1983




3D Image


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