The ordinates of flood hydrograph resulting from a storm of 5 hr duration are given below:Time (hr) 0 10 20 30 40 50 60 70Q(m°/s) 5 15 35 55 35 25 15The excess rainfall at the outlet of a 200 km2 catchment iscm. (Answer upto 2places of decimal). Assume base flow as 5 m3/s.

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The ordinates of flood hydrograph resulting from a storm of 5 hr duration are given below: Time (hr) 0 10 20 30 40 50 60 70 Q(m /s) 5 | 15 35 55 35 25 15 5 The excess rainfall at the outlet of a 200 km2 catchment is, cm. (Answer upto 2 places of decimal). Assume base flow as 5 m3/s.

The ordinates of flood hydrograph resulting from a storm of 5 hr duration are given below: Time (hr) 0 10 20 30 40 50 60 70 Q(m /s) 5 | 15 35 55 35 25 15 5 The excess rainfall at the outlet of a 200 km2 catchment is, cm. (Answer upto 2 places of decimal). Assume base flow as 5 m3/s.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Concept explainers

Unit Hydrograph

Hydrology is the science which deals with the study of water on the earth’s surface. The word Hydrograph is derived from the word hydro which means water. Hydrograph is basically a graph in which the discharge is plotted against the time interval at a specific point in a river or other channel. In a hydrograph, the discharge is plotted along the y-axis and time interval is plotted along the x-axis. Hydrograph is used to estimate the runoff. The variations in discharges with the change in time is shown by a hydrograph. It was revealed that the total discharge at an outlet increases with time by a kinematic wave model.

Question

The ordinates of flood hydrograph resulting from a storm of 5 hr duration are given below:
Time (hr) 0 10 20 30 40 50 60 70
Q(m°/s) 5 15 35 55 35 25 15
The excess rainfall at the outlet of a 200 km2 catchment is
cm. (Answer upto 2
places of decimal). Assume base flow as 5 m3/s.

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2-A 3 hours storm produces a flood hydrograph as: t (hr) Q (m³/s) 0 3 4 9 6 12 9 18 12 15 18 21 24 27 20 16 20 10 8 6 Determine 3 hr-UH, if the catchment area is 50 km². 3- Find the flood hydrograph of 3 hrs storm (use the UH of Q2). Total precipitation is 14.5 cm and 9-index is 1cm/hr. 30 4
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