The R/V Sallenger tows the SQUID-5 over Looe Key reef with a NOAA Sanctuary boat in the background patrolling the Looe Key area to warn recreational vessels of the ongoing research activity.
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R/V Sallenger tows SQUID-5
The R/V Sallenger tows the SQUID-5 over Looe Key reef with a NOAA Sanctuary boat in the background patrolling the Looe Key area to warn recreational vessels of the ongoing research activity.
Red Jellyfish in the genus Poralia
This beautiful red jellyfish in the genus Poralia may be an undescribed species. It was seen during the third transect of Dive 20 of the 2021 North Atlantic Stepping Stones expedition, at a depth of 700 meters (2,297 feet).
This beautiful red jellyfish in the genus Poralia may be an undescribed species. It was seen during the third transect of Dive 20 of the 2021 North Atlantic Stepping Stones expedition, at a depth of 700 meters (2,297 feet).
Bubblegum Coral
This large bubblegum coral (Paragorgia arborea) was observed during Dive 19 of the 2021 North Atlantic Stepping Stones expedition. Based on published radial growth rates for this species, this colony is approximately 100 years old!
This large bubblegum coral (Paragorgia arborea) was observed during Dive 19 of the 2021 North Atlantic Stepping Stones expedition. Based on published radial growth rates for this species, this colony is approximately 100 years old!
Scattered rock debris
Towards the end of Dive 19 of the 2021 North Atlantic Stepping Stones expedition, we continued to observe the scattered rock debris sitting on the lobate and pillow lava outcrops that we’d seen earlier, suggesting that the pinnacle of Retriever Seamount was perhaps a late-stage eruption site and that it remains largely susceptible to continued erosional modification
Towards the end of Dive 19 of the 2021 North Atlantic Stepping Stones expedition, we continued to observe the scattered rock debris sitting on the lobate and pillow lava outcrops that we’d seen earlier, suggesting that the pinnacle of Retriever Seamount was perhaps a late-stage eruption site and that it remains largely susceptible to continued erosional modification
Bathymetry data of the New England Seamounts
New bathymetry data of the New England Seamounts collected with the EM 304 MK II variant during the 2021 North Atlantic Stepping Stones: New England and Corner Rise Seamount Chain (EX-21-04) expedition, overlaid on the Global Multi-Resolution Topography Data Synthesis grid.
New bathymetry data of the New England Seamounts collected with the EM 304 MK II variant during the 2021 North Atlantic Stepping Stones: New England and Corner Rise Seamount Chain (EX-21-04) expedition, overlaid on the Global Multi-Resolution Topography Data Synthesis grid.
ROV Deep Discoverer surveying boulder covered in bamboo coral
Remotely operated vehicle Deep Discoverer surveys a large boulder covered in bamboo corals during the 2021 North Atlantic Stepping Stones expedition. Bamboo corals were locally abundant on these large boulders and more spread out throughout different hard-bottom habitats.
Remotely operated vehicle Deep Discoverer surveys a large boulder covered in bamboo corals during the 2021 North Atlantic Stepping Stones expedition. Bamboo corals were locally abundant on these large boulders and more spread out throughout different hard-bottom habitats.
Deploying SQUID-5 over Looe Key Reef
Dave Zawada (left) and Gerry Hatcher prepare to deploy the SQUID-5 off the R/V Sallenger over Looe Key, FL.
Dave Zawada (left) and Gerry Hatcher prepare to deploy the SQUID-5 off the R/V Sallenger over Looe Key, FL.
Multispecies Coral Garden
During Dive 11 of the 2021 North Atlantic Stepping Stones expedition, we discovered what is defined by the Oslo/Paris Convention (OSPAR) as a multispecies coral garden (100 - 700 coral colonies per every 100 square meter).
During Dive 11 of the 2021 North Atlantic Stepping Stones expedition, we discovered what is defined by the Oslo/Paris Convention (OSPAR) as a multispecies coral garden (100 - 700 coral colonies per every 100 square meter).
Gerry Hatcher controls SQUID-5
Gerry Hatcher controls SQUID-5 image acquisition over Looe Key Sanctuary Preservation Area (SPA).
Gerry Hatcher controls SQUID-5 image acquisition over Looe Key Sanctuary Preservation Area (SPA).
Turbidity sensor deployed by PCMSC near the bay-marsh edge of Whale's Tail South marsh
in Eden Landing Ecological Reserve, Hayward, CA to measure suspended-sediment concentration.
in Eden Landing Ecological Reserve, Hayward, CA to measure suspended-sediment concentration.
Instruments deployed by PCMSC near the bay-marsh edge of Whale's Tail South marsh
Instruments deployed by PCMSC near the bay-marsh edge of Whale's Tail South marsh in Eden Landing Ecological Reserve, Hayward, CA to measure water level and suspended-sediment concentration. View is to the north, with the San Mateo bridge in the background, and shows waves breaking against the marsh scarp during a rising tide.
Instruments deployed by PCMSC near the bay-marsh edge of Whale's Tail South marsh in Eden Landing Ecological Reserve, Hayward, CA to measure water level and suspended-sediment concentration. View is to the north, with the San Mateo bridge in the background, and shows waves breaking against the marsh scarp during a rising tide.
USACE LARC used for DUNEX field work
USGS Research Geologist Jennifer Miselis will conduct shoreface geophysical surveys at the USACE Field Research Facility during DUNEX aboard the LARC, which is shown here being set up for the survey.
USGS Research Geologist Jennifer Miselis will conduct shoreface geophysical surveys at the USACE Field Research Facility during DUNEX aboard the LARC, which is shown here being set up for the survey.
USGS DUNEX Survey underway off of a USACE amphibious vessel
A geophysical instrument (chirp) is towed in the water (yellow instrument) from a floating sled to acquire information about the geology below the seafloor in Duck, NC as part of DUNEX. The USACE Field Research Facility can be seen in the background in the upper left corner.
A geophysical instrument (chirp) is towed in the water (yellow instrument) from a floating sled to acquire information about the geology below the seafloor in Duck, NC as part of DUNEX. The USACE Field Research Facility can be seen in the background in the upper left corner.
Seismic science crew and the R/V Sproul
In the background is the Research Vessel (R/V) Robert Gordon Sproul, operated by Scripps Institution of Oceanography (SIO).
In the background is the Research Vessel (R/V) Robert Gordon Sproul, operated by Scripps Institution of Oceanography (SIO).
Wave-eroded marsh scarp of Whale's Tail South marsh
Wave-eroded marsh scarp of Whale's Tail South marsh in Eden Landing Ecological Reserve, Hayward, CA at low tide, looking south.
Wave-eroded marsh scarp of Whale's Tail South marsh in Eden Landing Ecological Reserve, Hayward, CA at low tide, looking south.
Deploying seismic streamer
Science crew from the USGS Pacific Coastal and Marine Science Center work on deployment of seismic streamer on deck of R/V Robert Gordon Sproul. Green cable is the hydrophone streamer and a "bird" is being attached to control depth in the water.
Science crew from the USGS Pacific Coastal and Marine Science Center work on deployment of seismic streamer on deck of R/V Robert Gordon Sproul. Green cable is the hydrophone streamer and a "bird" is being attached to control depth in the water.
Puerto Rico study area and Hurricane María path and data
(Left) Map of Puerto Rico showing study area location (red box), the oceanographic buoys (orange triangles), and the track of María with eye timing and locations (black dots) in 6-hour increments and the wind radii of 64-knot winds (gray circular outlines).
(Left) Map of Puerto Rico showing study area location (red box), the oceanographic buoys (orange triangles), and the track of María with eye timing and locations (black dots) in 6-hour increments and the wind radii of 64-knot winds (gray circular outlines).
A diagram showing an overview of the study area and the passage of Hurricane María
Overview of the study area and the passage of Hurricane María.
Overview of the study area and the passage of Hurricane María.
Sunset on the R/V Sproul
Looking across the back deck/stern of the R/V Robert Gordon Sproul. The wire going through the block in the A-frame leads to the CHIRP sonar fish towed in the water. Oil platforms are shown in the distance.
Looking across the back deck/stern of the R/V Robert Gordon Sproul. The wire going through the block in the A-frame leads to the CHIRP sonar fish towed in the water. Oil platforms are shown in the distance.
Monitoring equipment in the ocean
Ocean engineer Gerry Hatcher, of the USGS Pacific Coastal and Marine Science Center (PCMSC), sits at a desk on board the USGS boat Sallenger. He and a team of scientists from PCMSC and sister team St.
Ocean engineer Gerry Hatcher, of the USGS Pacific Coastal and Marine Science Center (PCMSC), sits at a desk on board the USGS boat Sallenger. He and a team of scientists from PCMSC and sister team St.
Map of model bathymetry, Columbia River
A three-dimensional hydrodynamic model of the lower Columbia River (LCR) was constructed using the Delft3D Flexible Mesh (DFM) modeling suite to simulate water levels, flow, and seabed stresses between January 1, 2017, and April 20, 2020
A three-dimensional hydrodynamic model of the lower Columbia River (LCR) was constructed using the Delft3D Flexible Mesh (DFM) modeling suite to simulate water levels, flow, and seabed stresses between January 1, 2017, and April 20, 2020