6-The six-hour unit hydrograph of a watershed having a drainage area equal to 393 km2 is as follows: Time (h) 0 6 12 18 24 30 36 42 Unit Hydrograph (m³/s*cm) 0 1.8 30.9 85.6 41.8 14.6 5.5 1.8 For a storm over the watershed having excess rainfall of 5cm for the first six hours and 15 cm for the second six hours, compute the streamflow hydrograph, assuming a constant base flow of 100 m 3 /s.

Structural Analysis
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Author:KASSIMALI, Aslam.
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Chapter2: Loads On Structures
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6-The six-hour unit hydrograph of a watershed having a drainage area equal to
393 km2 is as follows:
Time (h)
0 6
12
18
24
30
36 42
Unit Hydrograph (m³/s*cm) 0 1.8 30.9 85.6 41.8 14.6 5.5 1.8
For a storm over the watershed having excess rainfall of 5cm for the first six
hours and 15 cm for the second six hours, compute the streamflow
hydrograph, assuming a constant base flow of 100 m 3 /s.
Transcribed Image Text:6-The six-hour unit hydrograph of a watershed having a drainage area equal to 393 km2 is as follows: Time (h) 0 6 12 18 24 30 36 42 Unit Hydrograph (m³/s*cm) 0 1.8 30.9 85.6 41.8 14.6 5.5 1.8 For a storm over the watershed having excess rainfall of 5cm for the first six hours and 15 cm for the second six hours, compute the streamflow hydrograph, assuming a constant base flow of 100 m 3 /s.
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