Engineering Methods for Predicting Beach Profile Response

by David L. Kriebel, U.S. Naval Acad, Annapolis, United States,
Nicholas C. Kraus, U.S. Naval Acad, Annapolis, United States,
Magnus Larson, U.S. Naval Acad, Annapolis, United States,



Document Type: Proceeding Paper

Part of: Coastal Sediments

Abstract:

This papers contains a review of so-called 'engineering methods' for predicting beach profile change based on equilibrium profile concepts. In the first part of the paper, three equilibrium profile forms are discussed, including two that account for realistic beach-face slopes. In the second part of the paper, these profile forms are used to obtain analytical solutions for the maximum erosion potential in response to a water level rise. These solutions assume that the water level is maintained steady until the profile reaches its full equilibrium response which is not realistic. Therefore, the final part of the paper presents a new method for incorporating time-dependent erosion effects based on a convolution integral.

Subject Headings: Equilibrium | Beach profiles | Erosion | Water level | Water waves | Time dependence | Sediment transport

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