Coastal Carolinas Topobathymetric Model: Field Validation Data, 2021

Publication Date

2021-12-09

Start Date

2021-03-08

End Date

2021-03-25

Irwin, J.R., Danielson, J.J., and Robbins, T.J., 2021, Coastal Carolinas Topobathymetric Model: Field Validation Data, 2021: U.S. Geological Survey data release, https://doi.org/10.5066/P902W30G.

The Coastal National Elevation Database (CoNED) Applications Project develops enhanced topographic (land elevation) and bathymetric (water depth) datasets that serve as valuable resources for coastal hazards research and Earth science applications. High-resolution coastal topobathymetric data is required to identify flooding, storms, and sea-level rise inundation hazard zones and other earth science applications, such as the development of sediment transport and storm surge models. CoNED was funded to produce a TBDEM of the area impacted by Hurricane Florence in September of 2018 as part of the Hurricane Florence disaster relief effort. Funding for this work came from the Supplemental Appropriations for Disaster Relief Act of 2019 (H.R. 2157) and the USGS CMHRP. CoNED produced the TBDEM using the best and most recent publicly available datasets, including airborne topographic and topobathymetric light detection and ranging (lidar) data that was collected along the Coastal Carolinas and contracted by the USGS 3D Elevation Program (3DEP) and the National Oceanic and Atmospheric Administration (NOAA) National Geodetic Survey (NGS) to support the Hurricane Florence disaster relief effort. The data that were collected during the fieldwork were used to assess the vertical accuracy of the Topobathymetric Model of the Coastal Carolinas and Georgia, 1851 to 2021 over areas in North Carolina and South Carolina, as required by the USGS storm induced flooding and sediment transport modeling teams.

• USGS Data Release Products