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:

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

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Problem 4: Use the following table to determine the areal average rainfall using (1) Arithmetic-mean method Area Rainfall represented by station (mi?) Station depth (in) 3.1 4.2 4.5 5.1 5.5 3.5 3.2 5.5 4.3 4.8 m4534 ABCDE
A: Determine the average precipitation depth using isohvetal method within the basin for a certain catchment area given the following data? Isohyetal ( in) 6.8 6. 2 1.5 5 4 3. Area (sq. mile) 20 97 213 410 602 633
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