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Digital Shoreline Analysis System version 4.3 Transects with Short-Term End Point Rate Calculations for central North Carolina (NCcentral)

Dates

Publication Date
Time Period
2017

Citation

Kratzmann, M.G., Himmelstoss, E.A., and Thieler, E.R., 2017, National assessment of shoreline change – A GIS compilation of updated vector shorelines and associated shoreline change data for the Southeast Atlantic Coast: U.S. Geological Survey data release, https://doi.org/10.5066/F74X55X7.

Summary

Sandy ocean beaches in the United States are popular tourist and recreational destinations and constitute some of the most valuable real estate in the country. The boundary between land and water along the coastline is often the location of concentrated residential and commercial development and is frequently exposed to a range of natural hazards, which include flooding, storm effects, and coastal erosion. In response, the U.S. Geological Survey (USGS) is conducting a national assessment of coastal change hazards. One component of this research effort, the National Assessment of Shoreline Change Project (http://coastal.er.usgs.gov/shoreline-change/), documents changes in shoreline position as a proxy for coastal change. Shoreline [...]

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Attached Files

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Shapefile: NCcentral_transects_rates_STepr.zip
NCcentral_transects_rates_STepr.CPG 5 Bytes
NCcentral_transects_rates_STepr.dbf 14.01 KB
NCcentral_transects_rates_STepr.prj 145 Bytes
NCcentral_transects_rates_STepr.sbn 708 Bytes
NCcentral_transects_rates_STepr.sbx 148 Bytes
NCcentral_transects_rates_STepr.shp 5.51 KB
NCcentral_transects_rates_STepr.shx 604 Bytes

Purpose

This dataset consists of short-term (~30-year) end point shoreline change rates for the central North Carolina coastal region from Cape Hatteras to Cape Lookout where fewer than three shoreline positions were available for the short-term time period (1960 and later). Rate calculations were computed within a GIS using the Digital Shoreline Analysis System (DSAS) version 4.3, an ArcGIS extension developed by the U.S. Geological Survey. The two shorelines must cover a distance greater than 1 kilometer to be included. A reference baseline was used as the originating point for the orthogonal transects cast by the DSAS software. The transects intersect each shoreline establishing measurement points, which are then used to calculate short-term rates.

Additional Information

Shapefile Extension

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