Chirp Sub-Bottom Profile Geophysical Data Collected in 2021 and 2022 From Duck, North Carolina

As part of the Coastal Sediment Availability and Flux and DUring Nearshore Event eXperiment (DUNEX) projects, scientists from the U.S. Geological Survey (USGS) St. Petersburg Coastal and Marine Science Center and U.S. Army Corps of Engineers, Engineer Research and Development Center (USACE-ERDC) conducted repeat, nearshore geophysical surveys to map the shoreface and characterize stratigraphy near Duck, North Carolina (NC) in 2021 and 2022. The purpose of this study was to measure the co-evolution of the morphology and geology of the shoreface before/after a storm and during recovery. Collecting geophysical data can help researchers to identify relationships between the geologic history of the area, its present-day morphology, and sediment distribution.

This data release serves as an archive of sub-bottom profile and navigation data collected June and December 2021 and July 2022, offshore of Duck, NC during USGS Field Activity Numbers 2021-326-FA and 2022-326-FA. Data products, including chirp sub-bottom profile data and images, survey trackline map, location data with formal Federal Geographic Data Committee metadata, and field logs are provided. Coastal bathymetry data were also collected during this geophysical survey and will be provided in another data release.