Thursday, October 6, 2011

Week 2 Lab Assignment


1.     What was the name of the quadrangle? – The name of the quadrangle is the Beverly Hills Quadrangle.

2.     What are the names of the adjacent quadrangles? - The names of the adjacent quadrangles are as follows:
In the Northwest: Canoga Park Quadrangle
In the North: Van Nuys Quadrangle
In the Northeast: Burbank Quadrangle
In the West: Topanga Quadrangle
In the East: Hollywood Quadrangle
In the South: Venice Quadrangle
In the Southeast: Inglewood Quadrangle

3.     When was the quadrangle first created? – The quadrangle was first created in 1966. 

4.     What datum was used to create your map? – The following three datum were used to create my map:
The first datum is the North American Datum of 1927 (NAD 27).
The second datum is the North American Datum of 1983 (NAD 83).
The third Datum was the National Geodetic Vertical Datum of 1929.

5.     What is the scale of the map? – The scale of the map is 1:24000.

6.     At the above scale, answer the following
a.     5 centimeters on the map is equivalent to how many meters on the ground?
 5cm x 24,000 = # of cm on the Earth, or 120,000cm. Then when 120,000 cm is divided by 1000, the resulting answer is 1,200m. So, every 5cm on the map is equivalent to 1,200m.
b.     5 inches on the map is equivalent to how many miles on the ground?
 5 in x 24,000 = # of inches on the Earth, or 120,000in. Then when 120,000 is divided by 12 (to convert to feet), the 5 inches represents 10,000 feet. Then, to convert to miles, 10,000ft is divided by 5,280ft (the # of ft per mile), and the answer is 1.894 miles. Therefore, every 5 inches on the map equates to 1.894 miles.
c.     One mile on the ground is equivalent to how many inches on the map?
This can be set up as a ratio, since we already know that 1.894 miles = 5 inches. Therefore, 1mile/1.894miles = x/5 inches, or 1.894x=5. Therefore, 5/1.894=x, or 2.64 inches on the map.
d.     Three kilometers on the ground is equivalent to how many centimeters on the map?
 This can also be set up as a ratio, since we know that 5 cm on the map = 1,200 meters on the ground. Since 1,200/1,000=1.2 km, 5 cm on the map also equals 1.2km. Therefore 1.2km/3km=5cm/xcm, or 3(5)=1.2x, which is 15=1.2x. 15/1.2=12.5. Therefore, every 12.5 cm on the map represents 3 km on the ground.

7.     What is the contour interval on your map? – The contour interval on the map is 20 feet. However, it also has a supplementary contour interval of 10 feet.

8.     What are the approximate geographic coordinates in both degree/minutes/seconds and decimal degrees of:
a.     The Public Affairs Building:
34°4’30”N, 118°26’30”W, or 34.075°N, -118.484°E
b.     The tip of the Santa Monica pier:
34°0’30”N, 118°29’30”W, or 34.0083°N, -118.492°E
c.     The Upper Franklin Canyon Reservoir
34°7’05”N, 118°24’30”W, or 34.12°N, -118.41°E

9.     What is the approximate elevation in both feet and meters of:
a.     Greystone Mansion (in Greystone Park)
560ft, or 170.668m
b.     Woodlawn Cemetary
140ft, or 42.672m
c.     Crestwood Hills Park
690ft, or 210.312m

10.  What is the UTM Zone of the map? – The UTM zone of the map is Zone 11.

11.  What are the UTM coordinates for the lower left corner of your map? – The UTM coordinates for the lower left corner of my map are 3763000 m North, 362000 m East.

12.  How many square meters are contained within each cell (square) of the UTM gridlines? – Since each box is approximately 3 inches, we can multiply 3 x 24,000 to get 72,000 inches per UTM cell (since the scale is 1:24000). Then 72,000/12 results in 6,000 ft along each baseline. Then 6,000ft/5,280ft = 1.136 miles. 1.136 miles x 1.61 (conversion rate from miles to km) =  1.8295km. 1.8295km x 1,000 = 1,829.54 meters per base. Then, (1,829.54)2 = 3,347,236m2, which shows that each cell is approximately 3,347,236m2.

13.  Obtain elevation measurements, from west to east along the UTM northing 3771000, where the eastings of the UTM grid intersect the northing. Create an elevation profile using these measurements in Excel (hint: create a line chart). Figure out how to label the elevation values to the two measurements on campus. Insert your elevation profile as a graphic in your blog.

    Data Table of Change in Elevation Across UTM Northing 3771000
 UTM m East
Elevation (In Feet)
362000
540
363000
620
364000
640
365000
520
366000
520
367000
445
368000
390
369000
355
370000
298
371000
250
372000
193
373000
153



14.     What is the magnetic declination of the map? – The magnetic declination of the map is 14°, or 249 miles.

15.     In which direction does water flow in the intermittent stream between the 405 freeway and Stone Canyon Reservoir. – The intermittent stream between the 405 freeway and Stone Canyon Reservoir is flowing South.

16.     Crop out (i.e., cut and paste) UCLA from the map and include it as a graphic on your blog.


Sunday, October 2, 2011

This is a map that shows all of the destinations where Southwest Airlines flies planes within the United States. I found this map at the URL http://www.southwest.com/html/cs/travel_center/routemap.html. Based on this map, one can tell that Southwest sends airplanes to approximately 80% of the states in the nation. This map also shows which airports are used to access destinations where Southwest does not specifically fly, as exemplified by the notation of "Miami" underneath the Ft. Lauderdale airport location.   Also, since certain large airports are also generally referred to by the airport name rather than their specific location, such as Love Field (the Dallas airport) and Midway (the Chicago airport), Southwest included both names on the map near specified locations. I find it interesting that Southwest Airlines flies across a majority of the United States, yet ignores six states in a sole region, the northern Midwest, including Montana, Wyoming, North Dakota, South Dakota, Kansas, and Iowa.

Wednesday, September 28, 2011

BART Map
This is a map of the BART routes in San Francisco and its surrounding area. I acquired this map from the Bay Area Rapid Transit website, which can be found at the URL http://www.bart.gov/stations/. This map shows the paths travels by different BART routes. While this map does not provide technical data, like how long each route is or information about the frequency of train stops on each route, this map appropriately shows which BART connection an individual would have to take to get to various sections of the San Francisco and Oakland areas. Regardless, the color constrast between routes on this map, the bolding of fonts (at the end of each line), and the tick marks that aptly show transfers between trains, make this map fairly useable and easy to interpret. The map also gives a greater focus to the BART transit routes by only listing street names, rather than including streets on the map as well.

Map of the Tahoe Rim Trail near Lake Tahoe, California/Nevada

map-using-trail-master

This is a map of the Tahoe Rim Trail, which circumnavigates Lake Tahoe in California and Nevada.  I obtained this image from TRTA maps, which can be found on the Tahoe Rim Trail Association's website at the URL: http://tahoerimtrail.org/index.php?option=com_content&view=article&id=79&Itemid=119.  The trail itself is 165 miles and serves as a venue for numerous outdoor activities, ranging from hiking and backpacking to horseback riding and mountain biking. This map very generally shows how to access the Tahoe Rim Trail, as it only shows the trail's location in relation to the surrounding freeways and Lake Tahoe itself. This map also shows how the trail is divided into 9 different segments, all of which combined form the 165 mile loop. Since this map is the main image on the Tahoe Rim Trail Association's website, I find it odd that they chose to go with this map, rather than one with topographic or water markings (the presence of Lake Tahoe itself being the only exception to this trend).