Problem 7.11. Consider the hypothetical basin given in Problem 7.1. Construct a new storm hydrograph at outlet G for the given hyetograph assuming a D- index of 0.5 cm/hr and zero baseflow. comes to the outlet in 1 hour, from area B in 2 hours, etc. Construct the storm hydrograph at outlet G for the given hyetograph. (Assume that the infiltration is negligible and the baseflow is zero). D 1 km² i (cm/hr) 3 km² 2.5 B 4 km² 1.5 A 2 km² a) Basin ►t (hr) 0 1 2 3 4 b) Hyetograph Figure 7.28 Hypothetical basin and the hyetograph (Problem 7.1)

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Chapter2: Loads On Structures
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Hydrograph Analysis

Problem 7.11. Consider the hypothetical basin given in Problem 7.1. Construct
a new storm hydrograph at outlet G for the given hyetograph assuming a D-
index of 0.5 cm/hr and zero baseflow.
comes to the outlet in 1 hour, from area B in 2 hours, etc. Construct the storm
hydrograph at outlet G for the given hyetograph. (Assume that the infiltration is
negligible and the baseflow is zero).
D
1 km²
i (cm/hr)
3 km²
2.5
B
4 km²
1.5
A
2 km²
a) Basin
►t (hr)
0 1 2 3 4
b) Hyetograph
Figure 7.28 Hypothetical basin and the hyetograph (Problem 7.1)
Transcribed Image Text:Problem 7.11. Consider the hypothetical basin given in Problem 7.1. Construct a new storm hydrograph at outlet G for the given hyetograph assuming a D- index of 0.5 cm/hr and zero baseflow. comes to the outlet in 1 hour, from area B in 2 hours, etc. Construct the storm hydrograph at outlet G for the given hyetograph. (Assume that the infiltration is negligible and the baseflow is zero). D 1 km² i (cm/hr) 3 km² 2.5 B 4 km² 1.5 A 2 km² a) Basin ►t (hr) 0 1 2 3 4 b) Hyetograph Figure 7.28 Hypothetical basin and the hyetograph (Problem 7.1)
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