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two people with SCUBA gear in the water next to a scientific instrument on the surface
Divers prepare to deploy ADCP
Divers prepare to deploy ADCP
Divers prepare to deploy ADCP

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.

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
Inlet geomorphic environments with sediment transport pathways
Inlet geomorphic environments with sediment transport pathways
Inlet geomorphic environments with sediment transport pathways

Inlet geomorphic environments with sediment transport pathways indicated by black arrows.

a coral fragment in a bucket, half white and half darkened
Testing the role of biofilms in the spread of stony coral tissue loss disease (SCTLD)
Testing the role of biofilms in the spread of stony coral tissue loss disease (SCTLD)
Testing the role of biofilms in the spread of stony coral tissue loss disease (SCTLD)

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'
Gamma detectors at the St. Petersburg Coastal & Marine Science Center
Gamma detectors at the St. Petersburg Coastal & Marine Science Center
Gamma detectors at the St. Petersburg Coastal & Marine Science Center

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
Aerial view of northern Pinellas County barrier islands
Aerial view of northern Pinellas County barrier islands
Aerial view of northern Pinellas County barrier islands

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
Aerial view of northern Pinellas County barrier islands
Aerial view of northern Pinellas County barrier islands
Aerial view of northern Pinellas County barrier islands

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
Succession of beach ridges, Caladesi Island, Gulf of Mexico coast, FL
Succession of beach ridges, Caladesi Island, Gulf of Mexico coast, FL
Succession of beach ridges, Caladesi Island, Gulf of Mexico coast, FL

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.
Using personal watercraft to collect nearshore bathymetry data
Using personal watercraft to collect nearshore bathymetry data
Using personal watercraft to collect nearshore bathymetry data

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
Dr. Mark Buckley holds a buoy used to collect oceanographic data
Dr. Mark Buckley holds a buoy used to collect oceanographic data
Dr. Mark Buckley holds a buoy used to collect oceanographic 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.

A scientist in a bright colored vest holds a chunk of consolidated sandy sediment, in a grassy area with palms behind them.
Sediment Sample from Barrier Island Core
Sediment Sample from Barrier Island Core
Sediment Sample from Barrier Island Core

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.

Two scientists operate a motorized cylindrical object as it penetrates a sandy marsh environment
Collecting sediment core with vibracore equipment at Mullet Key, FL
Collecting sediment core with vibracore equipment at Mullet Key, FL
Collecting sediment core with vibracore equipment at Mullet Key, FL

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.

Three scientists operate a vibracore - a metal cylinder that is pushed into the sediment on a barrier island
Sediment coring at Mullet Key, Florida along the Gulf of Mexico
Sediment coring at Mullet Key, Florida along the Gulf of Mexico
Sediment coring at Mullet Key, Florida along the Gulf of Mexico

Mendenhall postdoctoral fellow Daniel Ciarletta and geologists Julie Bernier and Nancy DeWitt of the St.

photograph of a beach at the Cape Cod National Seashore with two humans walking with a balloon against dunes in the background
Helikite Surveying
Helikite Surveying
Helikite Surveying

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
Surveying the Beach at Caladesi Island, Gulf of Mexico Coast, Florida
Surveying the Beach at Caladesi Island, Gulf of Mexico Coast, Florida
Surveying the Beach at Caladesi Island, Gulf of Mexico Coast, Florida

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
USGS technician holding a bottle containing a sediment sample
USGS technician holding a bottle containing a sediment sample
USGS technician holding a bottle containing a sediment sample

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
USGS scuba diver on a coral reef in Dry Tortugas National Park
USGS scuba diver on a coral reef in Dry Tortugas National Park
USGS scuba diver on a coral reef in Dry Tortugas National Park

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
Wave conditions and probability of burial during munitions experiment
Wave conditions and probability of burial during munitions experiment
Wave conditions and probability of burial during munitions 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.

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.

An orange branching coral grows on a cinderblock on a reef in clear water.
Experimental elkhorn coral in Dry Tortugas National Park
Experimental elkhorn coral in Dry Tortugas National Park
Experimental elkhorn coral in Dry Tortugas National Park

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.

a man on the beach with bags and poles touching a small yellow boat
Deploying the Autonomous Surf Vehicle at Pea Island
Deploying the Autonomous Surf Vehicle at Pea Island
Deploying the Autonomous Surf Vehicle at Pea Island

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. 

a small yellow boat on green brown water with waves breaking
Autonomous Surf Vehicle in Action
Autonomous Surf Vehicle in Action
Autonomous Surf Vehicle in Action

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.