Sunday, October 10, 2010

Lab 2: USGS Topographic maps

1. What is the name of the quadrangle?

Beverly Hills

2. What are the names of the adjacent quadrangles?

Conoga Park, Van Nuys, Burbank, Topanga, Hollywood, Venice, Inglewood, Pacific Ocean

3. When was the quadrangle first created?

1966

4. What datum was used to create your map?

North American Datum of 1927, North American Datum of 1983

5. What is the scale of the map?

1:24,000

6a. 5 centimeers on the map is equivalent to how many meters on the ground?

Based on the scale of the map, 1:24,000
1cm (on map) = 24,000cm (on ground)
5cm (on map) = 24,000X5 = 120000cm (on ground)
As 1m = 100 cm
Therefore 5 cm on the ground is equivalent to 1,200m on the ground.

6b. 5 inches on the map is equivalent to how many miles on the ground?

Based on the scale of the map, 1:24,000
1 inch (on map) = 24,000 inches (on ground)
5 inches (on map) = 120000inches (on ground)
As 1 mile = 63360 inches
Therefore 5 inches on the map is equivalent to 120000/63360= 1.894 miles on the ground (rounded off to the nearest thousandths).

6c. One mile on the ground is equivalent to how many inches on the map?

Based on the scale of the map, 1:24,000
1 mile (on map) = 24,000 miles (on ground)
1/24,000 mile (on map) = 1 mile (on ground)
As 1 mile = 63360 inches
Therefore 1 mile on ground is equivalent to 63360/24000 = 2.64 inches on map.

6d. Three kilometers on the ground is equivalent to how many centimeters on the map?

Based on the scale of the map, 1:24,000
1 km (on map) = 24,000 km (on ground)
1/24,000 km (on map) = 1 km (on ground)
3 km (on ground) = 3 X 1/24,000 = 1/8000 km (on map)
As 1km=100000cm
Therefore 3 km on ground is equivalent to 100000/8000=12.5 cm on map.

7. What is the contour interval on your map?

20 Feet

8. What are the approximate geographic coordinates in both degrees/minutes/seconds and decimal degrees of:
a) the Public Affairs Building

34°4'30"N, 118°26'00"W
34.075°N, 118.43°W

b) the tip of Santa Monica Pier

34°0'27"N, 118°30'00"W
34.0075°N, 118.5°W

c) the Upper Franklin Canyon Reservoir

34°7'12"N, 118°24'24"W
34.12°N, 118.41°W

9. What is the approximate elevation in both feet and meters of:
a) Greystone Mansion (in Greystone Park)

580 feet
176.784 meters

b) Woodlawn Cemetery

140 feet
42.672 meters

c) Crestwood Hills Park

700 feet
213.36 meters

10. What is the UTM zone of the map?

Zone 11

11. What are the UTM coordinates for the lower left corner of your map?

(3763 N)or 3763 X 1000 meters = 3,763,000N and (362 E) or 362 X 10,000 meters = 362,000E

12. How many square meters are contained within each cell (square) of the UTM gridlines?

(363,000 - 362,000) X (3,764,000 - 3,763,000) = 1,000,000 meters square

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 lavel the elevation values to the two measurements on campus. Insert your elevation profile as a graphic in your blog.




14. What is the magnetic declination of the map?

14°

15. In which direction does water flow in the intermittent stream between the 405 freeway and Stone Canyon Reservoir?

From North to South

16. Crop out UCLA from the map and include it as a graphic on your blog.

No comments:

Post a Comment