1.2 The watershed at a site on a stream has 77000 ha area. The mean annual precipitation at this place is 950 mm. (i) If 25% of rainfall reaches the basin outlet as stream flow, estimate the mean annual flow rate of the stream in m'/s. (ii) If watershed treatment, including afforestation, causes the runoff rate to reduce to 22%, what is the increase in the volume of abstraction from all causes for the same mean annual rainfall of 950 mm?

1.2 The watershed at a site on a stream has 77000 ha area. The mean annual precipitation at this place is 950 mm. (i) If 25% of rainfall reaches the basin outlet as stream flow, estimate the mean annual flow rate of the stream in m'/s. (ii) If watershed treatment, including afforestation, causes the runoff rate to reduce to 22%, what is the increase in the volume of abstraction from all causes for the same mean annual rainfall of 950 mm?

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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Question

1.2 The watershed at a site on a stream has 77000 ha area. The mean annual precipitation
at this place is 950 mm. (i) If 25% of rainfall reaches the basin outlet as stream flow,
estimate the mean annual flow rate of the stream in m'/s. (ii) If watershed treatment,
including afforestation, causes the runoff rate to reduce to 22%, what is the increase
in the volume of abstraction from all causes for the same mean annual rainfall of
950 mm?

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