For a watershed comprising of 5000+Your Class No, hectares in area, the rainfall and runoff data...
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For a watershed comprising of 5000+Your Class No, hectares in area, the rainfall and runoff data are summarized below in the table. The maximum runoff rate was recorded as 4.82 m/s at hour 9 on the second day. Compute: a) 6-hr unit hydrograph, b) 12-hr unit hydrograph, c) A runoff hydrograph for the complex rain sequence as: 6-hr rainfall with rainfall intensity of 2mm/hr, followed by 6-hr rainfall with rainfall intensity of 7mmhr, and the last 6-hr rainfall with rainfall intensity of 11 mm/hr, and d) Determine the maximum runoff rate for the complex rain storm described in part c. Day-I 23 22 Day Rainfall Hour Intensity (mm/hr) Day-2 20 21 24 2 3 4 Data 0.5 0.5 0.5 2.7 1.0 5.2 1.7 1.3 1.1 1.3 Runoff Day Data Hour Day-1 20 16 12 Day-2 8 24 4 8 12 16 20 24 Intensity (m/s) 0.56 0.61 0.61 0.59 0.66 3.35 4.75 4.25 2.40 1.25 1.10 Runoff Day Hour Data Day-3 4 8 12 Day-4 48 12 16 20 24 16 20 24 Intensity (m'/s) 0.94 0.89 0.84 0.79 0.74 0.70 0.68 0.65 0.64 0,62 0.59 059 (CLO-II) (P: 40) For a watershed comprising of 5000+Your Class No, hectares in area, the rainfall and runoff data are summarized below in the table. The maximum runoff rate was recorded as 4.82 m/s at hour 9 on the second day. Compute: a) 6-hr unit hydrograph, b) 12-hr unit hydrograph, c) A runoff hydrograph for the complex rain sequence as: 6-hr rainfall with rainfall intensity of 2mm/hr, followed by 6-hr rainfall with rainfall intensity of 7mmhr, and the last 6-hr rainfall with rainfall intensity of 11 mm/hr, and d) Determine the maximum runoff rate for the complex rain storm described in part c. Day-I 23 22 Day Rainfall Hour Intensity (mm/hr) Day-2 20 21 24 2 3 4 Data 0.5 0.5 0.5 2.7 1.0 5.2 1.7 1.3 1.1 1.3 Runoff Day Data Hour Day-1 20 16 12 Day-2 8 24 4 8 12 16 20 24 Intensity (m/s) 0.56 0.61 0.61 0.59 0.66 3.35 4.75 4.25 2.40 1.25 1.10 Runoff Day Hour Data Day-3 4 8 12 Day-4 48 12 16 20 24 16 20 24 Intensity (m'/s) 0.94 0.89 0.84 0.79 0.74 0.70 0.68 0.65 0.64 0,62 0.59 059 (CLO-II) (P: 40)
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Calculate the ordinates of 4 Hrs Unit hydrograph by dividing the DRH ordin... View the full answer
Related Book For
Hydrology and Floodplain Analysis
ISBN: 978-0132567961
5th edition
Authors: Philip B. Bedient, Wayne C. Huber, Baxter E. Vieux
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