A lake had a water surface elevation of 103.2 m above datum at the beginning of a certain month. In that month the lake received an average inflow of 6.0 m3 /s from surface runoff sources. In the same period the outflow from the lake had an average value of 6.5 m3 /s. Further, in that month, the lake received a rainfall of 145 mm and the evaporation from the lake surface was estimated as 6.10 cm. Write the water budget equation for the lake and calculate the water surface elevation of the lake at the end of the month. The average lake surface area can be taken as 5000 ha. (groundwater flow negligible).
A lake had a water surface elevation of 103.2 m above datum at the beginning of a certain month. In that month the lake received an average inflow of 6.0 m3 /s from surface runoff sources. In the same period the outflow from the lake had an average value of 6.5 m3 /s. Further, in that month, the lake received a rainfall of 145 mm and the evaporation from the lake surface was estimated as 6.10 cm. Write the water budget equation for the lake and calculate the water surface elevation of the lake at the end of the month. The average lake surface area can be taken as 5000 ha. (groundwater flow negligible).
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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A lake had a water surface elevation of 103.2 m above datum at the beginning of a certain month. In that
month the lake received an average inflow of 6.0 m3 /s from surface runoff sources. In the same period the outflow
from the lake had an average value of 6.5 m3
/s. Further, in that month, the lake received a rainfall of 145 mm and
the evaporation from the lake surface was estimated as 6.10 cm. Write the water budget equation for the lake and
calculate the water surface elevation of the lake at the end of the month. The average lake surface area can be
taken as 5000 ha. (groundwater flow negligible).
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