Title: Monitoring Shoreline Change along Assateague Barrier Island: The First Trend Report
Abstract: The application of rigorous protocols to conduct shoreline surveys in the Assateague Island National Seashore of the Northeast Coastal and Barrier Network of the National Park Service has generated a dataset that permits comparisons of shoreline positions at seasonal, annual, and long-term scales. The end product of the comparisons provides insights to the sediment supply, sediment budget, and sediment transport system operating along Assateague Island. Application of the Shoreline Change Mapper in conjunction with the USGS Digital Shoreline Analysis System portrays the geotemporal relationship of change through the 5-year period of data availability. Most of the island has undergone shoreline position change greater than the measure of uncertainty associated with the protocol (10 m), with some areas gaining as much as 462 m and others losing as much as 374 m during the 5-year period. Linear regression analysis depicts the 5-year trend for the entire island as a loss of 0.95 m/yr, whereas the losses within the NPS portion of the island were 1.48 m/yr. End-Point analyses of the data identify a loss of 2.40 m/yr for the entire island and 2.53 m/yr within the NPS portion.
Publication Year: 2011
Publication Date: 2011-01-01
Language: en
Type: article
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Cited By Count: 5
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