A note on wave-induced set-up by obliquely incident waves |
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Authors: | T.T. Janssen I.S. Jones |
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Affiliation: | Department of Geosciences, San Francisco State University, San Francisco, CA 94132, United States |
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Abstract: | Water level variations due to obliquely incident, shoaling and breaking waves on a plane sloping beach were discussed recently by Hsu et al. (Coastal Engineering, 53, 865–877, 2006). An inconsistency in this work with respect to the set-down, and its implications to circulation offshore of the breakpoint, was pointed out by Shi and Kirby (Coastal Engineering, 55, 1246 – 1249, 2008). Here we extend that discussion to include the surfzone momentum balance and wave-induced set-up. We discuss some remaining inconsistencies in the approximation of the surfzone momentum balance, derive and present a consistent approximation, and validate the new approximation through numerical comparison to a more exact model. |
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Keywords: | Wave-induced set-up Oblique incidence Radiation stress |
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