The 4 hour unit hydrograph for a river-gauging station draining a catchment area of 554 km?, is given below. Make any checks possible on the validity of the unit graph. Find the probable peak discharge in the river, at the station from a storm covering the catchment and consisting of two consecutive 3 hour periods of net rain of intensities 12 and 6 mm/h respectively. Assume base flow rises linearly during the period of runoff from 30 to 70 m/s. Time Unit hydrograph m/s Time Unit hydrograph h m3/s 12 13 14 15 16 17 18 19 62 51 11 2 3 4 60 120 170 198 184 39 31 23 16 11 7 8 153 127 107 91 76 20 21 3 9 10 11
The 4 hour unit hydrograph for a river-gauging station draining a catchment area of 554 km?, is given below. Make any checks possible on the validity of the unit graph. Find the probable peak discharge in the river, at the station from a storm covering the catchment and consisting of two consecutive 3 hour periods of net rain of intensities 12 and 6 mm/h respectively. Assume base flow rises linearly during the period of runoff from 30 to 70 m/s. Time Unit hydrograph m/s Time Unit hydrograph h m3/s 12 13 14 15 16 17 18 19 62 51 11 2 3 4 60 120 170 198 184 39 31 23 16 11 7 8 153 127 107 91 76 20 21 3 9 10 11
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Transcribed Image Text:The 4 hour unit hydrograph for a river-gauging station draining a catchment area of 554 km?, is
given below. Make any checks possible on the validity of the unit graph. Find the probable peak
discharge in the river, at the station from a storm covering the catchment and consisting of two
consecutive 3 hour periods of net rain of intensities 12 and 6 mm/h respectively. Assume base
flow rises linearly during the period of runoff from 30 to 70 m/s.
Time Unit hydrograph
h
Time Unit hydrograph
h
m/s
m3/s
12
13
62
1
11
2
3
4
51
39
31
23
16
60
120
170
198
184
153
127
107
91
76
14
15
16
17
18
19
20
21
11
8
9
10
11
3
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