ea 600 km2 due to a storm that is believed to have duration of 3 hours. Assuming a constant base flow of m' /s, compute the ordinates of a 3-hour UH for the catchment. 03 6 50 | 600 | 950 me (hr) 9 12 15 18 21 24 27 30 33 36 ow 700 530 400 310 240 190 150 110 80 50

ea 600 km2 due to a storm that is believed to have duration of 3 hours. Assuming a constant base flow of m' /s, compute the ordinates of a 3-hour UH for the catchment. 03 6 50 | 600 | 950 me (hr) 9 12 15 18 21 24 27 30 33 36 ow 700 530 400 310 240 190 150 110 80 50

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

Q1/ The table below gives the ordinates of a stream, flow hydrograph at the outlet of a catchment of an
area 600 km2 due to a storm that is believed to have duration of 3 hours. Assuming a constant base flow of
50 m /s, compute the ordinates of a 3-hour UH for the catchment.
Time (hr)
3
9
12
15
18
21
24
27
30
33
36
Flow
50
600 950
700
530
400
310
240
190
150
110
80
50
(m³/s)

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