Long and short-term shoreline change rate transects for the central North Carolina coastal region (NCcentral), calculated with and without the proxy-datum bias using the Digital Shoreline Analysis System version 5.1

Dates

Publication Date: 2023-10-23
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 [...]

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 North Carolina (NCcentral), southern North Carolina (NCsouth), and western North Carolina (NCwest). Previously published historical shorelines for North Carolina (Kratzmann and others, 2017) were combined with the new lidar shoreline to calculate long-term (up to 169 years) and short-term (up to 20 years) rates of change. Files associated with the long-term and short-term rates are appended with "LT" and "ST", respectively. A proxy-datum bias reference line that accounts for the positional difference in a proxy shoreline (e.g. High Water Line (HWL) shoreline) and a datum shoreline (e.g. MHW shoreline) is also included in this release.

Contacts

Point of Contact :: Marie K Bartlett
Author :: Marie K Bartlett, Amy Farris, Kathryn M Weber, Rachel E. Henderson
Publisher :: U.S. Geological Survey
Data Owner :: Woods Hole Coastal and Marine Science Center
USGS Program :: Coastal and Marine Hazards and Resources Program
USGS Mission Area :: Natural Hazards
Distributor :: U.S. Geological Survey - ScienceBase

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NCcentral_rates.xml Original FGDC Metadata	View	46.1 KB	application/fgdc+xml
NCcentral_rates_browse.PNG “Example of rate transects for NCcentral”		646.69 KB	image/png

Shapefile: NCcentral_rates_LT.zip
NCcentral_rates_LT.cpg		5 Bytes
NCcentral_rates_LT.dbf		557.49 KB
NCcentral_rates_LT.prj		402 Bytes
NCcentral_rates_LT.sbn		22.79 KB
NCcentral_rates_LT.sbx		620 Bytes
NCcentral_rates_LT.shp		236.54 KB
NCcentral_rates_LT.shx		18.29 KB

Shapefile: NCcentral_rates_ST.zip
NCcentral_rates_ST.cpg		5 Bytes
NCcentral_rates_ST.dbf		451.03 KB
NCcentral_rates_ST.prj		402 Bytes
NCcentral_rates_ST.sbn		22 KB
NCcentral_rates_ST.sbx		612 Bytes
NCcentral_rates_ST.shp		226.48 KB
NCcentral_rates_ST.shx		17.51 KB

Related External Resources

Type: Web Link

Digital Shoreline Analysis System (version 5.1): U.S. Geological Survey Software	https://code.usgs.gov/cch/dsas/
Digital Shoreline Analysis System (DSAS) version 5.1 User Guide	https://pubs.usgs.gov/publication/ofr20211091

Type: Project Page

Digital Shoreline Analysis System (DSAS) Project Page	https://www.usgs.gov/centers/whcmsc/science/digital-shoreline-analysis-system-dsas

Purpose

This dataset describes the long-term (up to 169 years) and short-term (up to 20 years) shoreline change rates for the North Carolina coastal region, used to maintain a national database of shoreline change.

Long and short-term shoreline change rate transects for the central North Carolina coastal region (NCcentral), calculated with and without the proxy-datum bias using the Digital Shoreline Analysis System version 5.1

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