A glass micromodel (upper left) allows fluid flow through gaps between solid cylinders (gap size of 100 micrometers is shown in the upper-right image). Injecting fine-grained materials allows us to characterize the conditions in which clogs occur, as they have done in the upper- and lower-right pictures.
Images
Coastal and Marine Hazards and Resources Program images.
A glass micromodel (upper left) allows fluid flow through gaps between solid cylinders (gap size of 100 micrometers is shown in the upper-right image). Injecting fine-grained materials allows us to characterize the conditions in which clogs occur, as they have done in the upper- and lower-right pictures.
The USGS Gas Hydrates Project manages the standalone Hydrate Pressure Core Analysis Laboratory (HyPrCAL) at the Woods Hole Coastal and Marine Science Center (WHCMSC) to study hydrate-bearing sediments in support of energy resources a
The USGS Gas Hydrates Project manages the standalone Hydrate Pressure Core Analysis Laboratory (HyPrCAL) at the Woods Hole Coastal and Marine Science Center (WHCMSC) to study hydrate-bearing sediments in support of energy resources a
USGS scuba diver on a coral reef in Dry Tortugas National Park
USGS scuba diver on a coral reef in Dry Tortugas National ParkThe 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.
USGS scuba diver on a coral reef in Dry Tortugas National Park
USGS scuba diver on a coral reef in Dry Tortugas National ParkThe 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.
Ocean Beach in San Francisco looking north
Ocean Beach in San Francisco looking north
Wave conditions and probability of burial during munitions experiment
Wave conditions and probability of burial during munitions experimentA) Conditions during a 2015 munitions mobility experiment in Duck, NC, and B) cartographic visualization of hindcast probability of munitions’ complete burial during the experiment.
Wave conditions and probability of burial during munitions experiment
Wave conditions and probability of burial during munitions experimentA) Conditions during a 2015 munitions mobility experiment in Duck, NC, and B) cartographic visualization of hindcast probability of munitions’ complete burial during the experiment.
Experimental elkhorn coral in Dry Tortugas National Park
Experimental elkhorn coral in Dry Tortugas National ParkThe 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.
Experimental elkhorn coral in Dry Tortugas National Park
Experimental elkhorn coral in Dry Tortugas National ParkThe 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.
Deploying the Autonomous Surf Vehicle at Pea Island
Deploying the Autonomous Surf Vehicle at Pea IslandThe 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.
Deploying the Autonomous Surf Vehicle at Pea Island
Deploying the Autonomous Surf Vehicle at Pea IslandThe 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.
Far out, man... where science meets art
Tropical Storm Eta affected beaches along Florida's Gulf Coast in November 2020. Some dunes were eroded up to several feet due to the high water levels associated with the storm. Madeira Beach is home to many people and animals, and erosion events such as this can affect both habitat and infrastructure.
Tropical Storm Eta affected beaches along Florida's Gulf Coast in November 2020. Some dunes were eroded up to several feet due to the high water levels associated with the storm. Madeira Beach is home to many people and animals, and erosion events such as this can affect both habitat and infrastructure.
A view of a salt marsh pond on the left, and a tidal creek on the right at Plum Island, Massachusetts.
A view of a salt marsh pond on the left, and a tidal creek on the right at Plum Island, Massachusetts.
Tropical Storm Eta effects on Madeira Beach, Florida
Tropical Storm Eta effects on Madeira Beach, FloridaTropical Storm Eta had effects on Florida's Gulf Coast beaches, including dune erosion and overwash. This image from the coast cam at Madeira Beach, Florida captured high water levels and resulting overwash of sand onto the patio of the Shoreline Resort.
Tropical Storm Eta effects on Madeira Beach, Florida
Tropical Storm Eta effects on Madeira Beach, FloridaTropical Storm Eta had effects on Florida's Gulf Coast beaches, including dune erosion and overwash. This image from the coast cam at Madeira Beach, Florida captured high water levels and resulting overwash of sand onto the patio of the Shoreline Resort.
Measuring water chemistry in Double Keyhole Cave, FL
Measuring water chemistry in Double Keyhole Cave, FLRobert Scharping, a post-doctoral fellow jointly appointed by the USGS and the Woods Hole Oceanographic Institution (WHOI) measures water chemistry 40’ underwater and underground in Double Keyhole Cave near the coastline of Tampa Bay Florida.
Measuring water chemistry in Double Keyhole Cave, FL
Measuring water chemistry in Double Keyhole Cave, FLRobert Scharping, a post-doctoral fellow jointly appointed by the USGS and the Woods Hole Oceanographic Institution (WHOI) measures water chemistry 40’ underwater and underground in Double Keyhole Cave near the coastline of Tampa Bay Florida.
Samples are passed through 0.025 pore sized um filters to capture the viral-sized component from a water sample
Samples are passed through 0.025 pore sized um filters to capture the viral-sized component from a water sampleIn this image, three funnels containing seawater samples from coral mesocosms are passed through 0.025 um pore size filters. The samples have already been filtered through 0.2 um pore size filters to remove larger microorganisms such as bacteria, so the 0.025 um filters will capture primarily the viral size fraction of the mesocosm microbial community.
Samples are passed through 0.025 pore sized um filters to capture the viral-sized component from a water sample
Samples are passed through 0.025 pore sized um filters to capture the viral-sized component from a water sampleIn this image, three funnels containing seawater samples from coral mesocosms are passed through 0.025 um pore size filters. The samples have already been filtered through 0.2 um pore size filters to remove larger microorganisms such as bacteria, so the 0.025 um filters will capture primarily the viral size fraction of the mesocosm microbial community.
Dr. Ilsa Kuffner hangs out by a buoy in Dry Tortugas National Park (Florida) over a coral reef. Ilsa visits sites throughout the Florida Keys regularly to measure the growth and survival of nursery planted corals to determine where, and which genetic strains of corals will be most successful in large-scale coral reef restoration efforts.
Dr. Ilsa Kuffner hangs out by a buoy in Dry Tortugas National Park (Florida) over a coral reef. Ilsa visits sites throughout the Florida Keys regularly to measure the growth and survival of nursery planted corals to determine where, and which genetic strains of corals will be most successful in large-scale coral reef restoration efforts.
Elkhorn coral at calcification assessment station in Dry Tortugas
Elkhorn coral at calcification assessment station in Dry TortugasEstablished in 2009, the U.S. Geological Survey’s Coral Assessment Network (USGS-CAN) provides data on coral-growth (calcification) rates throughout the Florida Keys. Pictured here is one of 30 stations located in in Dry Tortugas National Park.
Elkhorn coral at calcification assessment station in Dry Tortugas
Elkhorn coral at calcification assessment station in Dry TortugasEstablished in 2009, the U.S. Geological Survey’s Coral Assessment Network (USGS-CAN) provides data on coral-growth (calcification) rates throughout the Florida Keys. Pictured here is one of 30 stations located in in Dry Tortugas National Park.
Adrian Garcia setting the target vertical effective stress to prepare for measuring the sample’s permeability at its in situ conditions of effective stress and gas hydrate content to constrain how easily fluid will flow through the reservoir during production activities such as those being undertaken on the
Adrian Garcia setting the target vertical effective stress to prepare for measuring the sample’s permeability at its in situ conditions of effective stress and gas hydrate content to constrain how easily fluid will flow through the reservoir during production activities such as those being undertaken on the
Collecting beach profile data in Science Festival video
Collecting beach profile data in Science Festival videoThis screenshot was taken from a video created for the virtual 2020 St. Petersburg Science Festival that discussed Coastal Change Hazards research at the USGS. Justin Birchler is seen walking up the beach with GPS equipment to measure the elevation of the beach.
Collecting beach profile data in Science Festival video
Collecting beach profile data in Science Festival videoThis screenshot was taken from a video created for the virtual 2020 St. Petersburg Science Festival that discussed Coastal Change Hazards research at the USGS. Justin Birchler is seen walking up the beach with GPS equipment to measure the elevation of the beach.
Scientists process sediment cores from the deep sea
Scientists process sediment cores from the deep seaTo help study the biodiversity present in the deep sea, scientists collect sediment cores. These cores are about a foot long and provide a vertical profile of deep-sea sediment, or mud.
Scientists process sediment cores from the deep sea
Scientists process sediment cores from the deep seaTo help study the biodiversity present in the deep sea, scientists collect sediment cores. These cores are about a foot long and provide a vertical profile of deep-sea sediment, or mud.
Waves are the motion of the water's surface, usually caused by the transfer of energy from wind. Wave energy causes the water to move in a circular motion. The height and length of these waves combined with the slope of the beach influence how high the water can reach up on the coast.
Waves are the motion of the water's surface, usually caused by the transfer of energy from wind. Wave energy causes the water to move in a circular motion. The height and length of these waves combined with the slope of the beach influence how high the water can reach up on the coast.
The USGS Pacific Coastal and Marine Science Center's new inflatable boat equipped with a portable, single beam, shallow-water echo sounder used for nearshore surveys. USGS scientists collect such data seasonally, to study sediment input and movement in and around Monterey Bay area beaches.
The USGS Pacific Coastal and Marine Science Center's new inflatable boat equipped with a portable, single beam, shallow-water echo sounder used for nearshore surveys. USGS scientists collect such data seasonally, to study sediment input and movement in and around Monterey Bay area beaches.