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Geomorphic Evolution of a Barrier Island Reflects the History of Natural Sediment Supply and Human Intervention in Taiwan
Eason Hong, W. Brian Dade, Yet-Chung Chang and Shun-Yu Chan
Journal of Coastal Research
Vol. 26, No. 1 (Jan., 2010), pp. 53-58
Published by: Coastal Education & Research Foundation, Inc.
Stable URL: http://www.jstor.org/stable/27752785
Page Count: 6
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We report on the integration of subaerial and subaqueous surveys, on the basis of, respectively, SPOT satellite images and data acquired from a combined side-scan and profiler sonar system, of a barrier island on the west-central coast of Taiwan. Our results establish a case study of a natural barrier island (i) the morphology and position of which have been dramatically affected by human alteration of a sediment-supplying river during the 2000-year interval 1790–1990, but (ii) whose partial destruction and migration have been mitigated significantly in recent years by a combination of tectonic and climatic events. These events have been shown elsewhere to have increased riverborne supply of sediment to the Taiwan coast, and we propose that this development, in turn, contributed to the observed stabilization of the barrier island in size and location.
Journal of Coastal Research © 2010 Coastal Education & Research Foundation, Inc.