At water EL = 7000 ft, Taal Lake has a volume of 2.4x10°m³ and a SA =Annual inputs to the lake includes 10 in. of rainfall, runoff inflow of 40,000 m/yr andungauged runoff and groundwater of 20,000 m/yr. Evaporation of 52 in per year. Findthe inflow, outflow and , in m/yr50,000m?.

Given: Water elevation, EL=7000 ft Volume of lake, Volume=2.4×106 m3 Surface Area, SA=50000 m2…

Answered: At water EL = 7000 ft, Taal Lake has a…

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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A lake had a water surface elevation of 110.00m above datum at the beginning of a certain month. In that month, the lake received an average flow of 66.0m3 /s from surface runoff sources. In the same period the outflow from the lake had an average value of 66.5m3 /s. Further, in that month, the lake received a rainfall of 150mm and the evaporation from the lake surface was estimated as 7.40cm. 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 5000ha. Assume that there is no contribution to or from the ground water storage
Example Problem Water budget for a lake provides following observations: Precipitation, P = = 43 in./yr. Evaporation, E = 53 in./yr. Inflow to Lake, Qin = 1 in./yr. Outflow from Lake, Qout = 173 in./yr. Change in Lake storage, AS = -2 in./yr. Find the net groundwater flow. Solution: E SWIn GWin PPT Evap SW Out GWout
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At water EL = 7000 ft, Taal Lake has a volume of 2.4x10°m³ and a SA = Annual inputs to the lake includes 10 in. of rainfall, runoff inflow of 40,000 m/yr and ungauged runoff and groundwater of 20,000 m/yr. Evaporation of 52 in per year. Find the inflow, outflow and , in m/yr 50,000m?.