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Long and short-term shoreline intersect points for the western coast of North Carolina (NCwest), calculated using the Digital Shoreline Analysis System version 5.1

Dates

Publication Date
Start Date
1848
End Date
2017

Citation

Bartlett, M.K., Farris, A.S., Weber, K.M., and Henderson, R.E., 2023, USGS National Shoreline Change — 2017 lidar-derived mean high water shoreline and associated shoreline change data for coastal North Carolina: U.S. Geological Survey data release, https://doi.org/10.5066/P9HYNUNV.

Summary

The U.S. Geological Survey (USGS) has compiled national shoreline data for more than 20 years to document coastal change and serve the needs of research, management, and the public. Maintaining a record of historical shoreline positions is an effective method to monitor national shoreline evolution over time, enabling scientists to identify areas most susceptible to erosion or accretion. These data can help coastal managers and planners understand which areas of the coast are vulnerable to change. This data release includes one new mean high water (MHW) shoreline extracted from lidar data collected in 2017 for the entire coastal region of North Carolina which is divided into four subregions: northern North Carolina (NCnorth), central [...]

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Attached Files

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NCwest_intersects_browse.PNG
“Example of shoreline intersect points for NCwest”
thumbnail 608.33 KB image/png
Shapefile: NCwest_intersects_LT.zip
NCwest_intersects_LT.cpg 5 Bytes
NCwest_intersects_LT.dbf 1.4 MB
NCwest_intersects_LT.prj 402 Bytes
NCwest_intersects_LT.sbn 64.24 KB
NCwest_intersects_LT.sbx 1.26 KB
NCwest_intersects_LT.shp 192.54 KB
NCwest_intersects_LT.shx 55.08 KB
Shapefile: NCwest_intersects_ST.zip
NCwest_intersects_ST.cpg 5 Bytes
NCwest_intersects_ST.dbf 322.99 KB
NCwest_intersects_ST.prj 402 Bytes
NCwest_intersects_ST.sbn 27.39 KB
NCwest_intersects_ST.sbx 772 Bytes
NCwest_intersects_ST.shp 79.37 KB
NCwest_intersects_ST.shx 22.75 KB

Purpose

This dataset consists of point data created by the Digital Shoreline Analysis System (DSAS) v5.1 at the intersection of shoreline and transect locations. Measurement transects are cast by DSAS from the baseline to intersect shoreline vectors, and the intersect data provide location and time information used to calculate rates of change. These point data contain identification information related to the DSAS transect (TransOrder) as well as the shoreline (ShorelineID and Uncertainty) and proxy-datum bias data (if applicable). They can be used to visually display which shorelines were used in the rate calculations and capture details on the shoreline represented by the intersection. The distances between the reference baseline and each shoreline intersection along a transect are used by the DSAS software to compute the shoreline change metrics.
Example of shoreline intersect points for NCwest
Example of shoreline intersect points for NCwest

Map

Spatial Services

ScienceBase WMS

ScienceBase WFS

Communities

  • USGS Data Release Products

Tags

Provenance

Data source
Input directly
replaced inadvertant rates files with intersects (20231024)

Additional Information

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