Large-scale coastal evolution of Louisiana's barrier islands
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Abstract
The prediction of large-scale coastal change is an extremely important, but distant goal. Here we describe some of our initial efforts in this direction, using historical bathymetric information along a 150 km reach of the rapidly evolving barrier island coast of Louisiana. Preliminary results suggest that the relative sea level rise rate, though extremely high in the area, has played a secondary role in coastal erosion over the last 100 years, with longshore transport of sand-sized sediment being the primary cause. Prediction of future conditions is hampered by a general lack of erosion processes understanding; however, an examination of the changing volumes of sand stored in a large ebb-tidal delta system suggests a continued high rate of shoreline retreat driven by the longshore re-distribution of sand.
Suggested Citation
List, J., Jaffe, B.E., Sallenger, 1991, Large-scale coastal evolution of Louisiana's barrier islands, in Coastal Sediments '91; Volume 2, Seattle, WA, USA, 25 June 1991 through 27 June 1991, p. 1532-1546.
Study Area
| Publication type | Conference Paper |
|---|---|
| Publication Subtype | Conference Paper |
| Title | Large-scale coastal evolution of Louisiana's barrier islands |
| ISBN | 0872628086 |
| Year Published | 1991 |
| Language | English |
| Publisher | Publ by ASCE |
| Publisher location | New York, NY, United States |
| Contributing office(s) | Woods Hole Coastal and Marine Science Center |
| Description | 15 p. |
| Larger Work Title | Coastal Sediments '91; Volume 2 |
| First page | 1532 |
| Last page | 1546 |
| Conference Title | Proceedings of a Specialty Conference on Quantitative Approaches to Coastal Sediment Processes |
| Conference Location | Seattle, WA, USA |
| Conference Date | 25 June 1991 through 27 June 1991 |