Wednesday, November 9, 2011

Week 7 Lab DEMs in Arc GIS






This area is the North Bay of California. The top portion of the map is the cities Vallajo which is located on the upper right hand corner, and San Rafael which is on the upper left hand corner. The bottom right portion consists of Hercules, Pinole Valley, Richmond, Berkeley, Oakland and Alameda. The bottom left portion is where The Golden Gate National Park and Sand Francisco are located.  This area has many small hills. Near Berkeley which is the bottom right corner is where one of the tallest hills and highest elevation are. The famous San Andreas fault line lies here. Another very hilly place is the Mill Valley and Tamaipais- Homestead Valley which is north of the Golden Gate Park in San Francisco. The extent of this map is 2106 columns and 2018 rows of raster data. The resolution in x direction is 0.000277777777796473 degree and resolution in y direction is 0.000277777777796473 degree. Coordinate system is top edge native is 38.2366666660223 degree, bottom edge native is 37.676111110429 degree, left edge native is -122.680555555471 degree and right edge native is  -122.095555555431 degree. The file size is 18 MB.

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