Direct runoff from a flood over a basin of area 50 hectare was observed as 25000 m³ during a storm. The equivalent depth of rain fall over the basin was 97 mm. The time distribution of the rain fall during the storm is given below. Determine the O-index for the storm. Time (hr.) 0 1 2 3 4 5 67 Rainfall (mm) 0.0 6.0 11.0 34.0 28.0 12.0 6.0 0.0

Structural Analysis
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ISBN:9781337630931
Author:KASSIMALI, Aslam.
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Chapter2: Loads On Structures
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Direct runoff from a flood over a basin of area
50 hectare was observed as 25000 m³ during a
storm. The equivalent depth of rain fall over the
basin was 97 mm. The time distribution of the
rain fall during the storm is given below.
Determine the -index for the storm.
Time (hr.) 0 1 2 3 4
5
5
6 7
Rainfall (mm) 0.0 6.0 11.0 34.0 28.0 12.0 6.0 0.0
Transcribed Image Text:Direct runoff from a flood over a basin of area 50 hectare was observed as 25000 m³ during a storm. The equivalent depth of rain fall over the basin was 97 mm. The time distribution of the rain fall during the storm is given below. Determine the -index for the storm. Time (hr.) 0 1 2 3 4 5 5 6 7 Rainfall (mm) 0.0 6.0 11.0 34.0 28.0 12.0 6.0 0.0
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