2) Explain three methods of determining the mean areal depth of precipitation over a basin covered by several rain-gauge stations. p) Find the mean precipitation for the area shown in Fig. P 2.24 by Thiessen polygon method. The area is composed of a square plus an equilateral triangular plot of side 2 km. Rainfall readings are in cm at the various stations indicated. (32.33 cm) A 2 km B 9 68 cm 10 cm 2 km Fa 15 cm a 38 cm 2 km 2 km 20 cm o 43 cm D o Rain gauge stations

Structural Analysis
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Author:KASSIMALI, Aslam.
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Chapter2: Loads On Structures
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(a) Explain three methods of determining the mean areal depth of precipitation over a basin
covered by several rain-gauge stations.
(b) Find the mean precipitation for the area shown in Fig. P 2.24 by Thiessen polygon method.
The area is composed of a square plus an equilateral triangular plot of side 2 km. Rainfall
readings are in cm at the various stations indicated.
(32.33 cm)
A
2 km
В
68 cm
10 cm
2 km
Fa 15 cm
38 cm
2 km
2 km
20 cm
43 сm
o Rain gauge stations
Fig. P2.24 Rain-gauge network
Transcribed Image Text:(a) Explain three methods of determining the mean areal depth of precipitation over a basin covered by several rain-gauge stations. (b) Find the mean precipitation for the area shown in Fig. P 2.24 by Thiessen polygon method. The area is composed of a square plus an equilateral triangular plot of side 2 km. Rainfall readings are in cm at the various stations indicated. (32.33 cm) A 2 km В 68 cm 10 cm 2 km Fa 15 cm 38 cm 2 km 2 km 20 cm 43 сm o Rain gauge stations Fig. P2.24 Rain-gauge network
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