The 10 min unit hydrograph for a 2.25 km2 urban catchment is given by3; Time 0 30 60 90 120 150 180 210 240 270 300 330 360 390 (min) Runoff 0 1.2 2.8 1.7 1.4 1.2 1.1 0.91 0.74 0.61 0.5 0.28 0.17 0 (m3/s) 1. Verify that the unit hydrograph is consistent with a 1 cm rainfall excess
The 10 min unit hydrograph for a 2.25 km2 urban catchment is given by3; Time 0 30 60 90 120 150 180 210 240 270 300 330 360 390 (min) Runoff 0 1.2 2.8 1.7 1.4 1.2 1.1 0.91 0.74 0.61 0.5 0.28 0.17 0 (m3/s) 1. Verify that the unit hydrograph is consistent with a 1 cm rainfall excess
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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C11
![The 10 min unit hydrograph for a 2.25 km2 urban catchment is given by;
Time
0 30 60 90 120 150 180 210 240 270 300 330 360 390
(min)
Runoff
0 1.2 2.8 1.7 1.4 1.2 1.1 0.91 0.74 0.61 0.5 0.28 0.17 0
(m³/s)
1. Verify that the unit hydrograph is consistent with a 1 cm rainfall excess
2. Estimate the runoff hydrograph for a 10 min rainfall excess of 3.5 cm
3. Estimate the runoff hydrograph for a 20 min rainfall excess of 8.5 cm](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F09701ac3-b78e-49a5-9099-d0b60ab72654%2F46db53ae-450c-42f9-be90-90f0a8a92959%2Fcnm7k2p_processed.jpeg&w=3840&q=75)
Transcribed Image Text:The 10 min unit hydrograph for a 2.25 km2 urban catchment is given by;
Time
0 30 60 90 120 150 180 210 240 270 300 330 360 390
(min)
Runoff
0 1.2 2.8 1.7 1.4 1.2 1.1 0.91 0.74 0.61 0.5 0.28 0.17 0
(m³/s)
1. Verify that the unit hydrograph is consistent with a 1 cm rainfall excess
2. Estimate the runoff hydrograph for a 10 min rainfall excess of 3.5 cm
3. Estimate the runoff hydrograph for a 20 min rainfall excess of 8.5 cm
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