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Find the ordinates of a storm hydrograph from a 3hr storm with rainfall of 2, 6.75 and 3.75 cm during subsequent 3 hr intervals.
written 5.7 years ago by
teamques10
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• modified 4.9 years ago |
The ordinates of hydrograph are given in the following table
| Hours | 3 | 6 | 9 | 12 | 15 | 18 | 21 | 24 | 3 | 6 | 9 | 12 | 15 | 18 | 21 | 24 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ordinates of Unit hydrograph (cumec) | 0 | 110 | 365 | 500 | 390 | 310 | 250 | 235 | 175 | 130 | 95 | 65 | 40 | 22 | 10 | 0 |
Assume an initial loss of 5 mm, infiltration index of 2.5 mm/hr and base flow of 10 cumecs.
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