(b) The hydrograph resulting from an 8-hr storm over a catchment area of 4000 km² given in the table below. Derive and plot the unit hydrograph for this storm. Time hrs 0 6 12 18 24 30 36 42 48 54 60 Discharge (m/s) Baseflow (m³/s) 120 120 140 140 480 160 1980 180 2600 210 2500 220 1500 280 1100 295 540 360 450 380 400 400

Structural Analysis
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Chapter2: Loads On Structures
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N
S
(b) The hydrograph resulting from an 8-hr storm over a catchment area of 4000 km² is
given in the table below. Derive and plot the unit hydrograph for this storm.
Time hrs Discharge (m³/s)
0
6
12
18
24
30
36
42
48
54
60
120
140
480
1980
2600
2500
1500
1100
540
450
400
Baseflow (m/s)
120
140
160
180
210
220
280
295
360
380
400
→ 00
5
2N
Transcribed Image Text:N S (b) The hydrograph resulting from an 8-hr storm over a catchment area of 4000 km² is given in the table below. Derive and plot the unit hydrograph for this storm. Time hrs Discharge (m³/s) 0 6 12 18 24 30 36 42 48 54 60 120 140 480 1980 2600 2500 1500 1100 540 450 400 Baseflow (m/s) 120 140 160 180 210 220 280 295 360 380 400 → 00 5 2N
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