Images

An erosion model activity used by the St. Petersburg Coastal and Marine Science Center to showcase how hurricane-force winds can cause damage to coastal environments.

The SQUID-5, or Structure-from-motion (SfM) Quantitative Underwater Imaging Device with 5 cameras test in Tampa Bay.

Dr. Legna Torres-García conducts an erosion model activity at the LCC Day School in St. Petersburg, FL, to showcase how hurricane-force winds can cause damage to coastal environments.

The SQUID-5, or Structure-from-motion (SfM) Quantitative Underwater Imaging Device with 5 cameras, being deployed by Mitch Lemon (SPCMSC, on the left) and Gerry Hatcher (PCMSC, on the right)  in Tampa Bay for testing.

The SQUID-5, or Structure-from-motion (SfM) Quantitative Underwater Imaging Device with 5 cameras, shown being staged for a test run at the St. Petersburg Coastal and Marine Science Center. In the background, Andy Farmer (SPCMSC) and Gerry Hatcher (PCMSC) prep the R/V Sallenger, the vessel being used to tow the device. 

The R/V Weatherbird II docked at the Florida Institute of Oceanography at University of South Florida (USF) College of Marine Science in St. Petersburg, Florida. USGS scientists and partners at Eckerd College and USF load the vessel in preparation for a research cruise as part of a National Science Foundation (NSF)-funded Scientists-at-Sea program.

A floating sled that enables sub‐bottom surveying in shallow water, nearshore, and shore‐face environments. The sled is equipped with an EdgeTech SB‐512i chirp system and single‐beam sonar. This equipment is used to collect seismic sub‐bottom profiles and single‐beam bathymetry.

Trayectorias de los huracanes Hugo (1989), Georges (1998), Irma (2017) y María (2017). Datos provistos por la NOAA. La imagen de base es propiedad intelectual de Esri y se usa aquí bajo licencia. Los derechos de autor y reproducción son propiedad de Esri y sus licenciatarios. 

BJ Reynolds of the St. Petersburg Coastal and Marine Science Center operates a personal watercraft near the shoreline of Seven Mile Island, New Jersey. This vessel is used to collect single beam bathymetry (depth and seafloor shape) in the nearshore, and the equipment on the shoreline is used to collect chirp seismic reflection on the shoreface and inner shelf.

Photograph collage representing different coastlines; permafrost coasts, sandy beaches, rocky beaches, wetlands and marshes, cliff-backed beaches, and estuaries.  

A digital elevation model (DEM) was created from underwater images collected at Eastern Dry Rocks coral reef near Key West, Florida, in May 2021 using the SQUID-5 camera system. The underwater images were processed using Structure-from-Motion (SfM) photogrammetry techniques into a classified two-class ('unclassified' and 'low noise') 3D point cloud.

Scientists collected sand auger cores from Fire Island to help reconstruct the evolution of the barrier over the last several centuries, with the goal of quantifying changes in sediment input and partitioning through time (e.g., how sand is distributed between the terrestrial portion of the barrier and the beach/shoreface).

Looking over the dunes towards the beach in the Otis Pike Fire Island High Dune Wilderness at Fire Island, New York. 

Scientists collected sand auger cores from Fire Island to help reconstruct the evolution of the barrier over the last several centuries, with the goal of quantifying changes in sediment input and partitioning through time (e.g. how sand is distributed between the terrestrial portion of the barrier and the beach/shoreface).

Student contractor Erin Lyons swims over a coral reef during research surveys.

Salt marshes provide important economic and ecologic services but are vulnerable to habitat loss, particularly due to shoreline erosion from storms and sea level rise. Sediments eroded at the marsh edge are either delivered onto the marsh platform or into the estuary, the latter resulting in a net loss to the marsh sediment budget and released soil carbon.

Coastal wetland shoreline position is mapped from historic and modern data sources, such as topographic sheets, aerial imagery, and satellite imagery. From these data, the shoreline change rate is determined from the date of the data source and the distance between each shoreline.

USGS scientists survey the precise location of a camera calibration target. The surveyed locations are used to georeference USGS CoastCam imagery.

Geologist Alisha Ellis kneels in the marsh grass while collecting sediment samples in Mississippi.

This Picarro L2130-i Isotope and Gas Concentration Analyzer is housed at the USGS St. Petersburg Coastal and Marine Science Center.

Dune restoration efforts in Isabela, Puerto Rico, using wooden planks to promote sand accumulation.