A lake of surface area 500 Acres received a daily average rainfall equals to Your Roll No (R) mm for a whole month. Direct inflows to this lake during this month were; R, 2R, 1.5R and 3R (in cusecs). Daily evaporation loss during this month was 1R cm/day. Later it was found that the rain gauge was inclined at an angle of 10 degree with the vertical. Direct outflow during this month was 0.25R cusecs/day. Assume the sides of the lake as vertical with initial water depth of 100ft at start of the month. Find the final storage of the lake at the end of the month. Also find the change in storage of the lake and rate of change of storage? Find Your answers in Acre-ft and Acre-ft/month, respectively NOTE: Here R=20

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Q: For a given month a 100 acre lake has 10 cfs. of inflow , 8 cfs outflow total storage increase of 20…

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Q: 8. During a five-day period without rainfall, a detention pond has an average inflow of 1.5 cfs and…

A:

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Q: Estimate the storage change (ft) for this lake during the month.

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Evaporation

This topic is majorly taught in various undergraduate and postgraduate degree courses of: