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5- Following ordinates of flood hydrograph were recorded in a stream resulting from a storm in catchments having an area of 2

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Given, Page-1 Area of untershed, A 20,000 ha = 200 km2 Base flow, 5 m/sec Time stream flow (m/s) 2 Bage flow cms) Runoff duePage 2 As we know that, unit hydrograph is graph between time and runoff for 1 cm effective rainfall . • Depth of rainfall foTime Chors) ordinates of direct runoff (milsel) Page 3 ordinates of unit hydrograph 3 O Oo75 12 7 2063 27 17 6.39 36 32 12.03

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