Images

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.

Wooden boardwalk built to protect fragile dunes from pedestrians in Isabela, Puerto Rico.

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

Mangroves grow along the coast in La Parguera, Lajas, Puerto Rico. Mangroves help protect the coast during storms.

Coral reef in La Parguera, Lajas Puerto Rico shows a sea fan coral (Gorgonia) in the center, surrounded other corals and fishes.

Coral reef in La Parguera, Lajas Puerto Rico shows various types and conditions of corals, including sea fan corals (Gorgonia) in the center.

Time-lapse of USGS researchers raising a mechanical mast with a high-resolution camera mounted on top, which was deployed atop a dune in the U.S.

Two high-resolution, digital cameras were mounted on towers overlooking the beach, dunes, and instrument arrays in the Outer Banks of North Carolina on September 18, 2021, as part of the DUring Nea

Michael Itzkin at the DUNEX field location on Pea Island, North Carolina. The instruments next to Michael include lidars, pressure sensors, and sonars to measure morphologic change, hydrodynamics, and sediment transport.