Answered: A direct-runoff hydrograph due to an…

A direct-runoff hydrograph due to an isolated storm was triangular in shape with a base of 60h and a peak of 100 m³/s. If the catchment area is

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

A direct-runoff hydrograph due to an isolated
storm was triangular in shape with a base of 60h
and a peak of 100 m³/s. If the catchment area is
500 km², the effective rainfall of the storm is
(a) 10 cm
(b) 2.16 cm
(c) 21.6 cm
(d) 1.08 cm

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