A methodology for modeling barrier island storm-impact scenarios

Rangley C. Mickey; Joseph W. Long; Nathaniel G. Plant; David M. Thompson; P. Soupy Dalyander

doi:10.3133/ofr20171009

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A methodology for modeling barrier island storm-impact scenarios

Rangley C. Mickey·Joseph W. Long·Nathaniel G. Plant·David M. Thompson·P. Soupy Dalyander

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Abstract

A methodology for developing a representative set of storm scenarios based on historical wave buoy and tide gauge data for a region at the Chandeleur Islands, Louisiana, was developed by the U.S. Geological Survey. The total water level was calculated for a 10-year period and analyzed against existing topographic data to identify when storm-induced wave action would affect island morphology. These events were categorized on the basis of the threshold of total water level and duration to create a set of storm scenarios that were simulated, using a high-fidelity, process-based, morphologic evolution model, on an idealized digital elevation model of the Chandeleur Islands. The simulated morphological changes resulting from these scenarios provide a range of impacts that can help coastal managers determine resiliency of proposed or existing coastal structures and identify vulnerable areas within those structures.

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Source-reported bounding extent: 28.583333° to 31° latitude; -89.116667° to -86.95° longitude. This indicates report coverage, not an exact sampling location. View area on OpenStreetMap.

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BibTeX RIS

Rangley C. Mickey, Joseph W. Long, Nathaniel G. Plant, David M. Thompson, P. Soupy Dalyander. 2017-02-16. A methodology for modeling barrier island storm-impact scenarios. https://doi.org/10.3133/ofr20171009

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