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Bias feature containing proxy-datum bias information to be used in the Digital Shoreline Analysis System for the central coast of North Carolina from Cape Hatteras to Cape Lookout (NCcentral)

Dates

Publication Date
Time Period
2018

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 [...]

Contacts

Attached Files

Click on title to download individual files attached to this item.

NCcentral_bias_feature_browse.PNG
“Map view of bias feature for NCcentral”
thumbnail 306.06 KB image/png
Shapefile: NCcentral_bias_feature.zip
NCcentral_bias_feature.cpg 5 Bytes
NCcentral_bias_feature.dbf 14.9 KB
NCcentral_bias_feature.prj 402 Bytes
NCcentral_bias_feature.sbn 2.17 KB
NCcentral_bias_feature.sbx 196 Bytes
NCcentral_bias_feature.shp 112.61 KB
NCcentral_bias_feature.shx 1.83 KB

Purpose

This dataset documents the proxy-datum bias (PDB) value and the uncertainty in the PDB. The "bias feature" is a shapefile representation the proxy-datum bias (PDB) data previously published in tabular format (Himmelstoss and others, 2010, Himmelstoss and others, 2018). These PDB data are used to shift older proxy-based shorelines so that they can be directly compared to newer datum-based shorelines and accurate rates can be calculated.

Additional Information

Shapefile Extension

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