(km) 80- 60- H B A 82 mm 5.4 mm 7.0 mm 40- E D 20-> 7.4 mm 0 6,6 mm 80 100 120 140 (km)

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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Monthly point rainfalls due to a storm at rain-gauge stations A, B, C, D and E in a Waterval basin are shown in Fig. 1. Suppose the station B was not in operative for long period of time.

The recorded annual rainfalls for stations A, C, D and E are 71.5, 66.5, 72.4 and 56.8 mm. respectively.

2.1. Determine the average areal depth of rainfall over the basin using the:_

(a) Arithmetic Mean Method:

(b) Theison Polygon Method

2.2. Estimate the annual rainfall at station B using:

 

(a)  Comparison Method: (b) Normal Ratio Method

(km)
80-
60-
H
B
A
82 mm
5.4 mm
7.0 mm
40-
E
D
20->
7.4 mm
0
6,6 mm
80
100
120
140
(km)
Transcribed Image Text:(km) 80- 60- H B A 82 mm 5.4 mm 7.0 mm 40- E D 20-> 7.4 mm 0 6,6 mm 80 100 120 140 (km)
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