FORMATION OF CUSPATE FORELAND IN FIELD SUBJECT TO WAVE-SHELTERING EFFECT OF ISLANDS

Takaaki Uda, Masumi Serizawa, Shiho Miyahara

Abstract


The morphological characteristics of the cuspate forelands located in Gardiners Bay on Long Island, New York, and Ukraine Bay in the Black Sea, and a land-tied island in Vietnam were investigated. The BG model (a model for predicting three-dimensional beach changes based on Bagnold’s concept) was used to predict the development of a cuspate foreland, when an island is located offshore of the cuspate foreland and waves are incident from two opposite directions. It was found that a cuspate foreland elongates toward the lee of the island owing to the wave-sheltering effect of an island. The formation of a land-tied island when five islands and two sand sources are located on opposite shores was also predicted using the BG model.

Keywords


cuspate foreland; numerical simulation; BG model; Ukraine Bay; Gardiners Bay

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References


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DOI: https://doi.org/10.9753/icce.v35.sediment.4