A 3-hr unit hydrograph U₁ of a catchment of area 245 km² is in the form of a triangular with peak discharge 35 m³/s. Another 3-hr unit hydrograph U₂ is also triangular in shape and has the same base width as U₁, but has a peak flow of 90 m³/s. What is the attachment area of U₂?

A 3-hr unit hydrograph U₁ of a catchment of area 245 km² is in the form of a triangular with peak discharge 35 m³/s. Another 3-hr unit hydrograph U₂ is also triangular in shape and has the same base width as U₁, but has a peak flow of 90 m³/s. What is the attachment area of U₂?

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

A 3-hr unit hydrograph U₁ of a catchment of area 245 km² is in the form of a triangular with peak discharge 35 m³/s.
Another 3-hr unit hydrograph U₂ is also triangular in shape and has the same base width as U₁, but has a peak flow of 90
m³/s. What is the attachment area of U₂?

35
m³/s
Q
K
Тв
time (hrs)
90
3
m³/s
↑
Q
TB (hrs)

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