EQUILIBRIUM TERRACED AND BARRED BEACHES

Mark D. Orzech; Nobuhisa Kobayashi

doi:10.9753/icce.v26.%p

No. 26 (1998), Conference Proceedings

No. 26 (1998)

EQUILIBRIUM TERRACED AND BARRED BEACHES

Conference Proceedings

https://doi.org/10.9753/icce.v26.%25p

Published 1998-01-29

Mark D. Orzech⁺⁻
Nobuhisa Kobayashi⁺⁻

Mark D. Orzech

Dept. of Oceanography, Naval Postgraduate School

Nobuhisa Kobayashi

Ctr. for Appl. Coastal Res., Univ. of Delaware

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Keywords

barred beach
equilibrium terraced beach

How to Cite

Orzech, M. D., & Kobayashi, N. (1998). EQUILIBRIUM TERRACED AND BARRED BEACHES. Coastal Engineering Proceedings, 1(26). https://doi.org/10.9753/icce.v26.%p

Abstract

The results of two sediment transport models based ore the sheet flow approach and the energetics approach are compared with experimental data of random waves over fine sand beaches in equilibrium in a wave flume. Two tests were conducted with a terraced profile (test 1) and a barred profile (test 2). The energetics-based model predicts the equilibrium profile better than the sheet flow model for both tests. However, the energetics model predicts offshore sediment transport and bar migration, whereas the sheet flow model predicts onshore sediment transport and bar migration. These models cannot predict zero net sediment transport rate on these equilibrium profiles with negligible profile changes, whereas the standard equilibrium profile cannot explain the existence of the terrace and bar.

https://doi.org/10.9753/icce.v26.%25p

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Authors retain copyright and grant the Proceedings right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this Proceedings.

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EQUILIBRIUM TERRACED AND BARRED BEACHES

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