Tuesday, April 24, 2012
Tuesday, April 17, 2012
Lab2
1.) The name of the quadrangle is called “Beverly Hills Quadrangle”.
2.) The adjacent quadrangles include Canoga Park, Van Nuys, Burbank, Topanga, Hollywood, Venice, and Inglewood.
3.) The quadrangle was first created in 1966, when the topography was first compiled.
4.) The two different datum included in this quadrangle are North American Datum of 1927, and North American Datum of 1983.
5.) The fractional scale on the map is 1: 24,000, which means that every one inch on the map represents 24,000 inches on the ground.
6.) At the above scale, answer the following:
a. 5cm on the map= 1200m on the ground.
b. 5in on the map= 2miles on the ground.
c. 3km on the ground= 7200cm on the map.
7.) The contour interval of this map is 20 feet.
8.) Coordinates.
a. 37^71 and 3^67 are the coordinates of the Public Affairs building.
b. 37^64 and 34º are the coordinates for the tip of Santa Monica Pier.
9.) Elevation.
10.) The UTM zone of the map is Zone 11, 10000-foot ticks.
11.) The UTM coordinates are 118º30.
12.) Each cell of the UTM gridline contains 1000 meters.
13.)
14.) The magnetic declination of the map is 14º.
15.) The water of the intermittent stream between the 405 freeway and Stone Canyon Reservoir flows from North to South. This is found by looking at the contour lines of elevation.
16.)
1
Monday, April 9, 2012
Maps that caught my eye.
This map comes from a website which is titled "Maps and catograms of the 2004 US presidential election results" by Michael Gastner, Cosma Shalizi, and Mark Newman from the University of Michigan. This map indicates the number of Republican and Democratic votes during the 2004 presidential election. What I found interesting about this map is that although there appears to be a dramatic contrast between red and blue, the difference between the two parties' votes is not that extreme. While I was reading the description, the author reminded us that the inner states have lower populations than the outer states, which are mostly blue. After taking this into consideration, the map is no longer as extreme as it appears to be. This made me think that the map might be biased because one who looks at the map and only reads the one-sentence description, might misunderstand the colors and think that there are mainly Republican votes in the United States.
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