086) Ordinates of a 2-hour unit hydrograph are given in the table below. Using these, derive a 4-hour unit hydrograph for the same catchment by using the S-curve method. Time (hrs) UH (m/s) 0 0 2 25 4 85 8 10 6 130 155 125 85 16 50 30 18 18 20 7 22

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086) Ordinates of a 2-hour unit hydrograph are given in the table below. Using these, derive a
4-hour unit hydrograph for the same catchment by using the S-curve method.
Time (hrs) 0
UH (m/s)
0
25
4
85
6
130
8 10
155 125
85
16 18
18
50 30
20
7
22
Transcribed Image Text:086) Ordinates of a 2-hour unit hydrograph are given in the table below. Using these, derive a 4-hour unit hydrograph for the same catchment by using the S-curve method. Time (hrs) 0 UH (m/s) 0 25 4 85 6 130 8 10 155 125 85 16 18 18 50 30 20 7 22
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