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Relative Coastal Vulnerability Assessment of Assateague Island National Seashore (ASIS) to Sea-Level Rise

Elizabeth A. Pendleton, S. Jeffress Williams, E. Robert Thieler

USGS Open-File Report 2004-1020

Download CVI Shoreline Shapefile and metadata

Relative Coastal Vulnerability for Assateague Island National Seashore. The innermost color bar is the relative coastal vulnerability index (CVI). The remaining color bars are separated into the geologic variables (1-3) and physical process variables (4 - 6). The very high vulnerability shoreline is located in low overwashed areas where rates of shoreline erosion are highest. The low vulnerability shoreline is located at the southern most end of Assateague in Virginia near Chincoteague Inlet where shoreline accretion rates are high.

The Coastal Vulnerability Index (CVI) provides insight into the relative potential of coastal change due to future sea-level rise. The maps and data presented here can be viewed in at least two ways: 1) as an example of where physical changes are most likely to occur as sea-level rises; and 2) as a planning tool for Assateague Island National Seashore.

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