THE IMPACT OF AN EXTREME EVENT ON THE SEDIMENT BUDGET: HURRICANE ANDREW IN THE LOUISIANA BARRIER ISLANDS

Jeffrey H. List, Mark E. Hansen, Asbury H. Sallenger, Bruce E. Jaffe

Abstract


This paper examines the influence of Hurricane Andrew on the sediment budget of an 80-kilometer section of the Louisiana barrier islands west of the modern Mississippi delta. Because long-term bathymetric change has been extensively studied in this area, excellent baseline data are available for evaluating the impact of Hurricane Andrew. Results show that despite the high intensity of the storm and a storm track optimally positioned to impact the study area, the storm did not have an overwhelming influence on the sediment budget when compared to the changes occurring over the previous 50 years. For the Louisiana barrier islands, a 50-year record appears to be adequate for averaging the long-term contributions of both major and minor storm events to the sediment budget.

Keywords


extreme event; sediment budget; Louisiana; barrier island; hurricane; Hurricane Andrew

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