9.24 The rainfall excesses derived from the weighted-average daily rainfall in a basin are indi- cated below. The 24-hour unit hydrograph from the observed data in the basin is also given. Estimate the daily streamflow. A constant baseflow of 20 m³/s has been estimated. Date, July 2006 6 14 18 28 5.2 48.5 Rainfall excess (mm) Unit Hydrograph: Time (days) 0 1 2 3 4 5 6 Flow (m³/s) 0 1.5 11.6 7.7 5.0 2.3 0

9.24 The rainfall excesses derived from the weighted-average daily rainfall in a basin are indi- cated below. The 24-hour unit hydrograph from the observed data in the basin is also given. Estimate the daily streamflow. A constant baseflow of 20 m³/s has been estimated. Date, July 2006 6 14 18 28 5.2 48.5 Rainfall excess (mm) Unit Hydrograph: Time (days) 0 1 2 3 4 5 6 Flow (m³/s) 0 1.5 11.6 7.7 5.0 2.3 0

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

Probability, risk and uncertainty analysis for hydrological design

It gives a framework that is financially critical for finding the exceptional designs of hydrological systems with a reduced cost in total inclusive of the project cost and the disaster mitigation cost. But there would be hardly any assessment of a decent quality damage function. Hence, errors in demonstrating the hydrologic events, incorrect model parameters, and so on may occur. Here, we will discuss a specific hydrological design that of a detention basin for studying and understanding the risk-based procedure, uncertainties, and probability analysis by following a systematic framework.

Question

9.24 The rainfall excesses derived from the weighted-average daily rainfall in a basin are indi-
cated below. The 24-hour unit hydrograph from the observed data in the basin is also
given. Estimate the daily streamflow. A constant baseflow of 20 m³/s has been estimated.
Date, July 2006
6
14
18
28
5.2
48.5
Rainfall excess (mm)
Unit Hydrograph:
Time (days)
0
1
2
3
4
5
6
Flow (m³/s)
0
1.5
11.6
7.7
5.0
2.3
0

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Step 1: Given

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Step 2: Direct runoff on 6 july

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Step 3: Direct runoff bon 14 july

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Step 4: Direct runoff on 18 july

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Step 5: direct run hydrograph

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Step 6: Flood hydrograph

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Calculate phy-index
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