In a typical 6-hr storm, 4 cm excess rainfall occurs. The flow recorded in the catchment is shown below. Derive a unit hydrograph for a 6-hr storm. Assume the Base flow is 100 cu. meter/sec.

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9. In a typical 6-hr storm, 4 cm excess rainfall occurs. The flow recorded in the catchment is
shown below. Derive a unit hydrograph for a 6-hr storm. Assume the Base flow is 100 cu.
meter/sec.
Time (hr)
Observed hydrograph
(m^3/s)
0
6
100 100
12
300
18
700
24
1000
30
800
36
600
42
400
48
54
300 200 100
60
66
100
Transcribed Image Text:9. In a typical 6-hr storm, 4 cm excess rainfall occurs. The flow recorded in the catchment is shown below. Derive a unit hydrograph for a 6-hr storm. Assume the Base flow is 100 cu. meter/sec. Time (hr) Observed hydrograph (m^3/s) 0 6 100 100 12 300 18 700 24 1000 30 800 36 600 42 400 48 54 300 200 100 60 66 100
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