Compute the mean annual precipitation for the river basin shown in the figure below using the Thiessen polygon method. The location of the various rain gauge stations and the point precipitation values are indicated in the table below. Fig.1. River basin and location of raingauges Table 3. Rainfall data and areas of thiesen polygon Rainfall, Pi (cm) Area (ha) 7.88 2.8 Raingauge Station A 84.0 B. 81.0 69.0 8.67 79.0 12.57 63.0 3.02 5.79 5.22 H. 58.0 61.0 69.0 8.45 K 56.0 8.05 Mean annual precipitation:

Structural Analysis
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Author:KASSIMALI, Aslam.
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Chapter2: Loads On Structures
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14
Compute the mean annual precipitation for the river
basin shown in the figure below using the Thiessen
polygon method. The location of the various rain
gauge stations and the point precipitation values are
indicated in the table below.
Fig.1. River basin and location of raingauges
Table 3. Rainfall data and areas of thiesen polygon
Rainfall, Pi (cm)
Area (ha)
7.88
2.8
Raingauge Station
84.0
81.0
69.0
8.67
79.0
12.57
63.0
3.02
H.
58.0
5.79
61.0
5.22
69.0
8.45
K
56.0
8.05
Mean annual precipitation:
Transcribed Image Text:Compute the mean annual precipitation for the river basin shown in the figure below using the Thiessen polygon method. The location of the various rain gauge stations and the point precipitation values are indicated in the table below. Fig.1. River basin and location of raingauges Table 3. Rainfall data and areas of thiesen polygon Rainfall, Pi (cm) Area (ha) 7.88 2.8 Raingauge Station 84.0 81.0 69.0 8.67 79.0 12.57 63.0 3.02 H. 58.0 5.79 61.0 5.22 69.0 8.45 K 56.0 8.05 Mean annual precipitation:
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