Scientific divers BJ Reynolds and Hunter Wilcox prepare to lower an Acoustic Doppler Current Profiler (ADCP) into the water. The ADCP now sits on the bottom of the ocean off Madeira beach, Florida in 5m water depth.
Images
Scientific divers BJ Reynolds and Hunter Wilcox prepare to lower an Acoustic Doppler Current Profiler (ADCP) into the water. The ADCP now sits on the bottom of the ocean off Madeira beach, Florida in 5m water depth.
![Shapes represent changes to a barrier island with arrows showing the movement of sediment](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/FigX2_final_051221.jpg?itok=v0M1XbVb)
Inlet geomorphic environments with sediment transport pathways indicated by black arrows.
Inlet geomorphic environments with sediment transport pathways indicated by black arrows.
![a coral fragment in a bucket, half white and half darkened](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/media/images/SMS_2021_%20-%2032e.jpg?itok=usL1HbBQ)
Biofilms are mats of microorganisms that stick together and form a layer, or “film,” on and within objects in the water—including ships—which could represent one possible mechanism for the spread of microbes (and potentially SCTLD’s unknown causative agent) from one region to another. To test this theory, scientists at the St.
Biofilms are mats of microorganisms that stick together and form a layer, or “film,” on and within objects in the water—including ships—which could represent one possible mechanism for the spread of microbes (and potentially SCTLD’s unknown causative agent) from one region to another. To test this theory, scientists at the St.
![Two gray cylinders with chemical symbols next to a large metal cylinder labeled 'Nitrogen'](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/Marci-Gamma-Detectors.jpg?itok=LfyJDCUn)
Radioactive isotopes are common in nature and emit particles that can be detected, quantified, and used to characterize environmental processes.
Radioactive isotopes are common in nature and emit particles that can be detected, quantified, and used to characterize environmental processes.
![Motion aerial view of several thin, sandy barrier islands lining a populated coastline behind an embayment](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/media/images/Pinellas%20Barrier%20Islands%20Aerial%20small.gif?itok=lRKkmeoA)
Barrier islands off the coast of northern Pinellas County, Florida including Anclote Key, Three Rooker Island, and the northern tip of Honeymoon Island. These barriers protect a highly populated coastline.
Barrier islands off the coast of northern Pinellas County, Florida including Anclote Key, Three Rooker Island, and the northern tip of Honeymoon Island. These barriers protect a highly populated coastline.
![An aerial view of several thin, sandy barrier islands lining a populated coastline behind an embayment](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/20210307_134640_0.jpg?itok=hSGi8P4u)
Barrier islands off the coast of northern Pinellas County, Florida including Anclote Key, Three Rooker Island, and the northern tip of Honeymoon Island. These barriers protect a highly populated coastline.
Barrier islands off the coast of northern Pinellas County, Florida including Anclote Key, Three Rooker Island, and the northern tip of Honeymoon Island. These barriers protect a highly populated coastline.
![Beach ridges at Caladesi Island, FL](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/CaledesiIsland_beachridges_DCiarletta_2021.jpg?itok=F3fZjotm)
Mendenhall postdoctoral fellow Daniel Ciarletta captured this view of the modern beach ridge system at Caladesi Island, along the Gulf coast of central Florida. Ciarletta and colleagues are studying the island as part of a project to explore barrier island response to long-term changes in sediment availability.
Mendenhall postdoctoral fellow Daniel Ciarletta captured this view of the modern beach ridge system at Caladesi Island, along the Gulf coast of central Florida. Ciarletta and colleagues are studying the island as part of a project to explore barrier island response to long-term changes in sediment availability.
![A scientist sits on a personal watercraft near a vegetated, marsh shoreline.](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/MicrosoftTeams-image%20%281%29_4.png?itok=tMH6fwQl)
A USGS scientist sits on a personal watercraft (PWC) equipped with scientific equipment to collect bathymetry data - or the depth of the water - at locations of interest in Point Aux Chenes Bay, Mississippi.
A USGS scientist sits on a personal watercraft (PWC) equipped with scientific equipment to collect bathymetry data - or the depth of the water - at locations of interest in Point Aux Chenes Bay, Mississippi.
![A man holds a round, yellow object with a cord in front of a brick building](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/mark-buckley-buoy-5-portrait.jpg?itok=n9inkw-R)
Dr. Mark Buckley of the USGS St. Petersburg Coastal and Marine Science Center holds a new Sofar Smart Mooring and Spotter Buoy that will be used to deliver high-fidelity, real-time wave, water level, and wind data.
Dr. Mark Buckley of the USGS St. Petersburg Coastal and Marine Science Center holds a new Sofar Smart Mooring and Spotter Buoy that will be used to deliver high-fidelity, real-time wave, water level, and wind data.
Daniel Ciarletta, Ph.D. holds a chunk of sand from the bottom of a core collected at Fort de Soto Park in Pinellas County, Florida. Learn more about what barrier island cores tell us: https://www.usgs.gov/media/videos/secrets-sediment-barrier-islands.
Daniel Ciarletta, Ph.D. holds a chunk of sand from the bottom of a core collected at Fort de Soto Park in Pinellas County, Florida. Learn more about what barrier island cores tell us: https://www.usgs.gov/media/videos/secrets-sediment-barrier-islands.
Dan Ciarletta (right) working alongside Julie Bernier (left) to collect a sediment core on Mullet Key, an island within Fort de Soto Park in Pinellas County, Florida. The core will be used to reconstruct the geologic history of the island.
Dan Ciarletta (right) working alongside Julie Bernier (left) to collect a sediment core on Mullet Key, an island within Fort de Soto Park in Pinellas County, Florida. The core will be used to reconstruct the geologic history of the island.
![A man writes on a long metal cyllinder in a marsh environment](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/20210219_161017%280%29_0.jpg?itok=nPUkf59P)
![Three scientists operate a vibracore - a metal cylinder that is pushed into the sediment on a barrier island](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/GOPR0166-2%20-%20Copy.jpg?itok=7MXr6qmh)
The Helikite in action, being walked by USGS scientist Chris Sherwood and WHOI scientist Peter Traykovski, the helium powered balloon kite will be used to survey the DUNEX experiment site.
The Helikite in action, being walked by USGS scientist Chris Sherwood and WHOI scientist Peter Traykovski, the helium powered balloon kite will be used to survey the DUNEX experiment site.
![USGS geologists surveying the beach at Caladesi Island, FL](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/CSAF_Geologists_CaladesiIsland.jpg?itok=f-l2XW1j)
Mendenhall postdoctoral fellow Daniel Ciarletta and geologist Julie Bernier perform field reconnaissance at Caladesi Island, along the Gulf coast of central Florida. The scientists are refining a plan to sample and survey the island using sediment vibracores and ground-penetrating radar.
Mendenhall postdoctoral fellow Daniel Ciarletta and geologist Julie Bernier perform field reconnaissance at Caladesi Island, along the Gulf coast of central Florida. The scientists are refining a plan to sample and survey the island using sediment vibracores and ground-penetrating radar.
![USGS hydrologic technician holding a bottle containing a sediment sample](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/397A1432.jpg?itok=c-IaK2tU)
Hydrologic Technician Alan Cressler holding a bottle containing a sediment sample. Photo taken on the Caloosahatchee River below Structure 77, Moore Haven, Florida.
Hydrologic Technician Alan Cressler holding a bottle containing a sediment sample. Photo taken on the Caloosahatchee River below Structure 77, Moore Haven, Florida.
![Coral on a cinderblock and a scuba diver on a coral reef](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/Elkhorn%20experiment%20in%20DRTO_2-edited.jpg?itok=QMry6cNW)
The U.S. Geological Survey is conducting research to guide the recovery of the threatened Elkhorn coral, Acropora palmata, in Dry Tortugas National Park and throughout the western Atlantic.
The U.S. Geological Survey is conducting research to guide the recovery of the threatened Elkhorn coral, Acropora palmata, in Dry Tortugas National Park and throughout the western Atlantic.
![Left: a view of rough seas past a railing. Right: a computer visualization showing the area that might be buried as a red block](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/SERDP-2.png?itok=9HBpBr_O)
A) Conditions during a 2015 munitions mobility experiment in Duck, NC, and B) cartographic visualization of hindcast probability of munitions’ complete burial during the experiment.
A) Conditions during a 2015 munitions mobility experiment in Duck, NC, and B) cartographic visualization of hindcast probability of munitions’ complete burial during the experiment.
The U.S. Geological Survey St. Petersburg Coastal and Marine Science Center is conducting research to guide the restoration and recovery of the threatened elkhorn coral, Acropora palmata, in Dry Tortugas National Park and throughout the western Atlantic.
The U.S. Geological Survey St. Petersburg Coastal and Marine Science Center is conducting research to guide the restoration and recovery of the threatened elkhorn coral, Acropora palmata, in Dry Tortugas National Park and throughout the western Atlantic.
The USGS will be using an autonomous surf vehicle, built by Peter Traykovski of WHOI, to map the bathymetry of the Pea Island DUNEX Experiment Site.
The USGS will be using an autonomous surf vehicle, built by Peter Traykovski of WHOI, to map the bathymetry of the Pea Island DUNEX Experiment Site.
The autonomous surf vehicle, built and controlled remotely by Peter Traykovski of WHOI, is used to map the bathymetry of the Pea Island DUNEX Experiment Site.
The autonomous surf vehicle, built and controlled remotely by Peter Traykovski of WHOI, is used to map the bathymetry of the Pea Island DUNEX Experiment Site.