The ordinates of a hydrograph measured on a 6-hr interval are given in the table below. The watershed has drainage area of 750 ha. Separate the base flow and then estimate the direct runoff volume using the three baseflow separation methods. Time (hr) Flow Rate (m3 /s) -6 49 0 40 6 54 12 112 18 153 24 148 30 113 36 82 42 71 48 61 54 52 60 44 66 36 72 29 78
The ordinates of a hydrograph measured on a 6-hr interval are given in the table below. The watershed has drainage area of 750 ha. Separate the base flow and then estimate the direct runoff volume using the three baseflow separation methods. Time (hr) Flow Rate (m3 /s) -6 49 0 40 6 54 12 112 18 153 24 148 30 113 36 82 42 71 48 61 54 52 60 44 66 36 72 29 78
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Question
The ordinates of a hydrograph measured on a 6-hr interval are given in the table below. The
watershed has drainage area of 750 ha. Separate the base flow and then estimate the direct
runoff volume using the three baseflow separation methods.
Time
(hr)
Flow Rate
(m3
/s)
-6 49
0 40
6 54
12 112
18 153
24 148
30 113
36 82
42 71
48 61
54 52
60 44
66 36
72 29
78
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