A catchment has four sub-areas. The annual precipitation and evaporation from each of the sub-areas are given below. Assume that there is no change in the ground water storage on an annual basis and calculate for the whole catchment the values of annual average i) Precipitation ii) Evaporation iii) What are the annual runoff coefficient for the sub-areas and for the total catchment taken as a whole?
A catchment has four sub-areas. The annual precipitation and evaporation from each of the sub-areas are given below. Assume that there is no change in the ground water storage on an annual basis and calculate for the whole catchment the values of annual average i) Precipitation ii) Evaporation iii) What are the annual runoff coefficient for the sub-areas and for the total catchment taken as a whole?
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Question
A catchment has four sub-areas. The annual precipitation and evaporation from each of the
sub-areas are given below.
Assume that there is no change in the ground water storage on an annual basis and calculate
for the whole catchment the values of annual average
i) Precipitation
ii) Evaporation
iii) What are the annual runoff coefficient for the sub-areas and for the total catchment
taken as a whole?
Transcribed Image Text:Area (Mm?)
Annual evaporation
(mm)
Sub Area
Annual
Precipitation (mm)
A
10
1000
500
B
3
800
400
C
8
900
450
1100
550
20
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