An engineer who is working in a water resources planning project estimated flood data and base flow for a storm in a catchment area as shown in Table 1. The size of the catchment area is 500 km?. 1. Table 1 Time in Days 2 3 6. 7. 8 9. Discharge (m/s) 20 63 151 133 90 6?

Structural Analysis
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1.
An engineer who is working in a water resources planning project estimated flood data
and base flow for a storm in a catchment area as shown in Table 1. The size of the
catchment area is 500 km2.
Table 1
Time in Days
3.
4
7
8.
Discharge (m/s)
20
63
151
133 90
63
44
29
20 20
Base flow (m/s)
20
25
28
28
26
23
21
20 20
a. Calculate the effective rainfall.
b. Derive the ordinates of 1 hr- UH
6.
2.
22
Transcribed Image Text:1. An engineer who is working in a water resources planning project estimated flood data and base flow for a storm in a catchment area as shown in Table 1. The size of the catchment area is 500 km2. Table 1 Time in Days 3. 4 7 8. Discharge (m/s) 20 63 151 133 90 63 44 29 20 20 Base flow (m/s) 20 25 28 28 26 23 21 20 20 a. Calculate the effective rainfall. b. Derive the ordinates of 1 hr- UH 6. 2. 22
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