Geog 165Lab

# Geog 165Lab - c. 90-100: 13.5 (number of cubes) x 6.25km =...

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Geog 165Lg Laboratory Experiment #1 Contour Maps, Isolines, and Areal Measures Wednesday, September 19, 2007, 10:00-11:50 Class Number: 35635R Tucker/ Josh Tucker 3108818894 TA: Anthony

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0 20 40 60 80 100 120 Rainfall changes along length of the drainage basin Exercise #1 Please see map of water basin attached. Exercise #2 Calculating Area 1. The total area of the drainage bin: a. 78.5km (number of squares) x (2.5 x 2.5km length of sides of each cube) = 490.625km 2. The total area inside the drainage basin that is contained within selected isohyet intervals. a. >110: 4 (number of cubes) x 6.25km = 25km b. 100-110: 17.5 (number of cubes) x 6.25km = 109.375km
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Unformatted text preview: c. 90-100: 13.5 (number of cubes) x 6.25km = 84.375km d. &lt; 90: 490.625km (90-110 = 193.75km ) 25km = 271.875km 3. The percentage of the basin receiving less that 90 mm of rainfall: a. 271.875/ 490.625 = 55.4% Exercise #3 Drawing a Vertical Profile Exercise #4: Calculating Gradient m = rise/run = (y1 y2) / (x1 x2) 1. 0-4km: (80-80 / 4-0) = 0 2. 4-8km: (90-80) / 8-4) = 2.5 3. 8-12km: (102-90 / 12-8) = 3 4. 12-16km: (102-102 / 16-12) = 0 5. 16-20km: (98-102 / 20-16) = -1 6. 20-24km: (94-98/ 24-20) = -1 7. 24-28km: (88-94/ 28-24) =-1.5 8. 28-32km (80-88/ 32-88) = -2...
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## This note was uploaded on 04/24/2008 for the course GEOG 165Lg taught by Professor Pepper during the Fall '07 term at USC.

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Geog 165Lab - c. 90-100: 13.5 (number of cubes) x 6.25km =...

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