The 30-min unit hydrograph for a 2.25km² 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 0.50 0.28 (m³/s) 0.17 a) verify that the unit hydrograph is consistent with a 1-cm rainfall excess; b) estimate the runoff hydrograph for a 30 min rainfall excess of 3.5 cm and c) estimate the runoff hydrograph for a 60-min rainfall excess of 7.0 cm 0
The 30-min unit hydrograph for a 2.25km² 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 0.50 0.28 (m³/s) 0.17 a) verify that the unit hydrograph is consistent with a 1-cm rainfall excess; b) estimate the runoff hydrograph for a 30 min rainfall excess of 3.5 cm and c) estimate the runoff hydrograph for a 60-min rainfall excess of 7.0 cm 0
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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