Question: Assume the beach along the coast of Alaska has a slope of 1/250 and that the swell has the mean direction of propagation of 27

Assume the beach along the coast of Alaska has a slope of 1/250 and that the swell has the mean direction of propagation of 27 degrees, what is the alongshore flow rate? Would the flow rate change for a slope of 1:10? Which is the slope that induces the fastest flow? Why? [10 marks]

Please provide full solutions.

Answer: The depth of closure is the upper boundary of the beach profile. For a depth smaller than the depth of closure net cross-shore transport can be expected. It is normally estimated as dc = 6.75Hs = 6.75 * 4.6 = 31m

(Please show the whole calculation and work not only the theory part)

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