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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. 3. Suppose the station D was not in operative for long period of time. The recorded annual rainfalls for stations A, B, C and E are 91.7, 76.2, 82.5 and 66.8 mm, respectively. 4.1. Calculate the scale of the map 4.2. Determine the average areal depth of rainfall over the basin using the: (a) Arithmetic Mean method (b) Theison Polygon Method 4.3. Estimate the annual rainfall at station D using: (a) Comparison Method (b) Normal Ratio Method km 60 C 7.2 mm 40 B 6.8 mm 75mm 20 0 Figure 3 D 7.8 mm E 6.8 mm (km)

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. 3. Suppose the station D was not in operative for long period of time. The recorded annual rainfalls for stations A, B, C and E are 91.7, 76.2, 82.5 and 66.8 mm, respectively. 4.1. Calculate the scale of the map 4.2. Determine the average areal depth of rainfall over the basin using the: (a) Arithmetic Mean method (b) Theison Polygon Method 4.3. Estimate the annual rainfall at station D using: (a) Comparison Method (b) Normal Ratio Method km 60 C 7.2 mm 40 B 6.8 mm 75mm 20 0 Figure 3 D 7.8 mm E 6.8 mm (km)

Structural Analysis
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. 3. Suppose the station D was not in operative for long period of time. The recorded annual rainfalls for stations A, B, C and E are 91.7, 76.2, 82.5 and 66.8 mm, respectively. 4.1. Calculate the scale of the map 4.2. Determine the average areal depth of rainfall over the basin using the: (a) Arithmetic Mean method (b) Theison Polygon Method 4.3. Estimate the annual rainfall at station D using: (a) Comparison Method (b) Normal Ratio Method km 60 C 7.2 mm 40 B 6.8 mm 75mm 20 0 Figure 3 D 7.8 mm E 6.8 mm (km)
Transcribed Image Text: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. 3. Suppose the station D was not in operative for long period of time. The recorded annual rainfalls for stations A, B, C and E are 91.7, 76.2, 82.5 and 66.8 mm, respectively. 4.1. Calculate the scale of the map 4.2. Determine the average areal depth of rainfall over the basin using the: (a) Arithmetic Mean method (b) Theison Polygon Method 4.3. Estimate the annual rainfall at station D using: (a) Comparison Method (b) Normal Ratio Method km 60 C 7.2 mm 40 B 6.8 mm 75mm 20 0 Figure 3 D 7.8 mm E 6.8 mm (km)
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