For this lab, I chose to take a digital elevation model of the San Fernando Valley, where I am from. It was an easy choice since I am from there and live there when I'm not at UCLA, so I know the area best. The San Fernando Valley is exactly as it name implies, surrounded by mountains with a wide valley below. The surrounding mountains reach a peak of about 1,700 feet, and the lowest point in the valley drops down to 300 feet above sea level. As is clearly displayed in the 3-D model in the bottom right corner, the highest mountains are in the northern portion of the valley, leading into Santa Clarita and Valencia and Newhall, among others. The mountains leading into West L.A. on the south of the valley are not as high comparatively. The extent of this digital elevation model 34.358 degrees at the top, 34.099 degrees at the bottom, -118.686 degrees on the left and -118.281 degrees on the right. The UTM Zone for this area is Zone 11.
It seems you missed some of the instructions. The DEM should be laid over the hillshade layer in your second map. Also, you should re-project the DEM to create the slope and aspect maps, or, as I explained in class, there will be errors.
ReplyDeleteA note on asthetics: you might reconsider the placement of the north arrow and legend on your first map. They are a bit difficult to ready. (No points off for this.)
8.5/10