Woods Hole Coastal and Marine Science Center

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Map of backscatter intensity and sun-illuminated topography on Stellwagen Bank
December 31, 2011

Backscatter intensity on Stellwagen Bank

Map C.  Backscatter intensity and sun-illuminated topography.  Blue= "soft" seabed, Green, orange = "hard" seabed

Schematic of system designed to control movement and logging of data
December 31, 2011

Schematic of system designed to control movement and logging of data

Schematic of system designed to control movement and logging of data collected by the Moving Arm Tripod at Martha's Vineyard Coastal Observatory in 2011.

 

Image of oceanographic equipment platform deployed off the coast of Martha's Vineyard
September 21, 2011

Oceanographic equipment customized to reach the benthic boundary layer

Steaming to the deployment site south of Martha's Vineyard, MA in 2011. The platform shown was specially adapted so the arm cycles up and down through the Benthic Boubdary Layer while deployed on the seafloor.  For more information see https://soundwaves.usgs.gov/2011/11/fieldwork2.html.

Photograph of Ice conditions in the Arctic from CCGS Louis S. St-Laurent.
September 14, 2011

Arctic Ice Conditions

Ice conditions in the Arctic from CCGS Louis S. St-Laurent.

USGS scientists assembling a novel profiling arm to measure suspended sediment
September 8, 2011

USGS scientists assembling a novel profiling arm

USGS scientists assembling a novel profiling arm to measure suspended sediment in the benthic boundary layer. This large seafloor platform was later deployed for several months off Martha's Vineyard, MA as part of the Optics Acoustics and Stress In Situ (OASIS) Project in 2011.

Photograph of airgun deployment
August 30, 2011

Airgun array deployment

Deploying the airgun array from CCGS Louis S. St-Laurent. USCGC Healy can be seen in the background.

Photograph of CCGS Louis S. St-Laurent following the path created by USCGC Healy
August 29, 2011

Ice Breaker

CCGS Louis S. St-Laurent following the path created by USCGC Healy

Electronics for controlling the moving arm in the open pressure housing.
July 27, 2011

Electronics for controlling the moving arm

Electronics for controlling the moving arm in the open pressure housing.

Comparison of observed near-bed velocities and modeled near-bed velocities using several bottom-roughness formulations.
December 31, 2010

Comparison of observed near-bed velocities and modeled near-bed veloci

Comparison of observed near-bed velocities and modeled near-bed velocities using several bottom-roughness formulations. Velocity vectors are overlaid on map of backscatter from the sea floor showing regions with coarse sand (light color) and fine sand (dark colors). White lines are bathymetry contours. Mean velocities were averaged over entire period (top panel), flood and

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