Question 3 A watershed of 35 km? was subjected to a storm of 1h duration from which the following information are recorded in Table 2. a) Obtain a Unit Hydrograph for this watershed knowing that the base flow in the stream is estimated at 2 m°/s. b) Derive and plot 4 hours Unit Hydrograph for the catchment area. Table 2: Data for the time and Discharge Time (hours) 01 2 3 4 5 6 7 Discharge (m³/s) | 2 15 30 37 30 22 16 12 2

Structural Analysis
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Chapter2: Loads On Structures
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Question 3
A watershed of 35 km? was subjected to a storm of 1h duration from which the following
information are recorded in Table 2.
a) Obtain a Unit Hydrograph for this watershed knowing that the base flow in the stream is
estimated at 2 m°/s.
b) Derive and plot 4 hours Unit Hydrograph for the catchment area.
Table 2: Data for the time and Discharge
Time (hours)
01 2 3 4 5
6 7
Discharge (m³/s) | 2 15 30 37 30 22 16 12 2
Transcribed Image Text:Question 3 A watershed of 35 km? was subjected to a storm of 1h duration from which the following information are recorded in Table 2. a) Obtain a Unit Hydrograph for this watershed knowing that the base flow in the stream is estimated at 2 m°/s. b) Derive and plot 4 hours Unit Hydrograph for the catchment area. Table 2: Data for the time and Discharge Time (hours) 01 2 3 4 5 6 7 Discharge (m³/s) | 2 15 30 37 30 22 16 12 2
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