Question

A dam lake with 21.1 km2 basin area with flow coefficient of 0.1 and with 11.7 km2 surface area, It is fed from a flow in September with an average flow rate of 1.1 m3 / sec . During this month,precipitation with a 71 mm high was observed in the region . Evaporation measured in the evaporation pan in September, with the basin coefficient of 0.8, amount is 71 cm. A total of 1.1* 0^6 m3 from the lake for electricity production in September and for drinking water needs 0.1 m3/sec water was taken. Since the surface of the lake has been lowered by 5 cm in September, What is the amount of water leaking to underground in September?(both mm and m3 find as)

Answer 1

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