A Criterion for Determining the Impact on Shorelines Caused by Altering Wave Transformation

An evaluation of the possible influence of man-made changes to wave transformation processes at a particular site requires an extensive modeling effort that yields quantitative results suitable for decision-making. Analysis of a proposed offshore sand mining project at Sandbridge Shoal, near Virgini...

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Bibliographic Details
Published in:Journal of coastal research 2001, Vol.17 (1), p.107-113
Main Authors: Jerome P. -Y. Maa, Hobbs, Carl H., C. Scott Hardaway Jr
Format: Article
Language:English
Subjects:
Beaches
Coastal engineering
Coasts
Dredging
Earth sciences
Earth, ocean, space
Exact sciences and technology
Marine and continental quaternary
Noreasters
Seas
Sediment transport
Shoals
Shorelines
Surficial geology
USA, Virginia, Virginia Beach
Waves
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Summary:An evaluation of the possible influence of man-made changes to wave transformation processes at a particular site requires an extensive modeling effort that yields quantitative results suitable for decision-making. Analysis of a proposed offshore sand mining project at Sandbridge Shoal, near Virginia Beach, Virginia, serves as an example of such an evaluation. Using the criterion established in this study, it is demonstrated that the originally proposed separation of the sand resource into two dredging sites will cause unfavorable results at the shore. A favorable alternative is proposed which will reduce breaking wave height modulation along the coast, and thus, the gradient of longshore sediment transport rate.
ISSN:0749-0208
1551-5036