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Lake Waiua is Hawaii's only alpine lake. It has (approximately) vertical sides and a 7000 m2...

Lake Waiua is Hawaii's only alpine lake. It has (approximately) vertical sides and a 7000 m2 area.

Between 2010 and 2013, its depth declined from 3m to 0.3 m.

Imagine that the water that disappeared from the lake between 2010 and 2013 all drained vertically into a completely dry soil layer beneath the lake (porosity ϕ=0.5). Assume that this drainage caused soils to become completely saturated, how much would the height of the water table beneath the lake increase?

Engineering   Civil-Engineering   
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Lake Waiua is Hawaii's only alpine lake.  It has (approximately) vertical sides and a 7000 m2 area.  ...
Lake Waiua is Hawaii's only alpine lake.  It has (approximately) vertical sides and a 7000 m2 area.   Between 2010 and 2013, its depth declined from 3m to 0.3 m.    e) The soil of the lake bed has a porosity of ϕ=0.5.  After the lake drained, the soil is unsaturated and has water content of θ=0.3, and a matric potential (head) of -20m.  There is a rainstorm. After 1 day, all the rainfall infiltrates over the unsaturated soils. The cumulative infiltration (F) depth is...
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