The St. Petersburg Coastal and Marine Science Center sent a large crew to Seven Mile Island to collect single beam bathymetry in the nearshore and chirp seismic reflection on the shoreface and inner shelf.
SPCMSC team traveled to Seven Mile Island, New Jersey, to collect seafloor data to inform studies on barrier island change and sediment budget
The team included Drs. Emily Wei and Jen Miselis, along with Geologists Julie Bernier and Nancy DeWitt, and field staff and marine operations crew members Andy Farmer, Ben Galbraith, Kyle Kelso, BJ Reynolds, and Chelsea Stalk. The team collected single beam bathymetry in the nearshore and chirp seismic reflection on the shoreface and inner shelf. Chirp data allow them to see the sediment layers below the seafloor and understand more about the geologic history of the island. Furthermore, it allows them to understand how much mobile sediment there is offshore of the island, and how the sediment volumes vary alongshore.
This project supports an evaluation of restoration projects that took place on Seven Mile Island after Hurricane Sandy in 2012. The data provided through this project and many others like it will help the National Fish and Wildlife Foundation (NFWF) evaluate how the restored parts of the coast have changed through time. The team previously surveyed the island with multibeam bathymetry in 2018 and 2021. In addition to supporting NFWF, these data are also valuable to local stakeholders who may use it to develop coastal planning and resilience strategies which are critical for heavily populated New Jersey coasts.