Images

USGS staff and Tribal GIS workshop participants

Split-beam (EK60) sonar image of bubbles (green) in the water column at a seep site overlooking Baltimore Canyon on the U.S. Atlantic margin. Although the bubbles appear to nearly reach the sea surface, the methane contained in the bubbles would have dissolved and been replaced by other gases by the time the bubbles rise several hundred meters.

Visualization of hydrodynamics around seagrass patch.

Preview image of multi-channel seismic data collected by the USGS off the US Seaboard Atlantic as part of the US Extended Continental Shelf project.

A USGS researcher measures water and sediment movement at Forsythe National Wildlife Refuge, New Jersey.

Inundated marsh at Forsythe National Wildlife Refuge, New Jersey.

R/V Marcus G. Langseth entering NY Harbor

Offshore Sediment texture and Geomorphology

Aerial shot of Nauset Beach in Orleans, Massachusetts.

Tribal GIS Workshop participanats.

Deployment of an instrumented quadrapod off Martha’s Vineyard, November 2014.

 An instrumented bottom lander is deployed south of Martha's Vineyard, MA in 2014 as part of the “Bottom Stress and the Generation of Vertical Vorticity Over the Inner Shelf” project.

Seismic Lab aboard R/V Marcus G. Langseth

Timeline of past drilling activities conducted by countries, private sector firms, government agencies, and academe that have helped to refine global gas hydrate estimates and possible future drilling and production testing

Airgun array aboard R/V Marcus G. Langseth

Schematic showing the general setting of seeps on the US Atlantic margin and related processes, such as gas hydrate degradation, groundwater seepage, leakage through fractured rocks, or emissions from the seafloor overlying salt diapirs. Pockmarks shown in white, and the nominal updip limit of gas hydrate stability is represented by the dashed black line.

Sample preparation and processing area in the K.O. Emery Geotechnical Wing at the Woods Hole Coastal and Marine Science Center, Woods Hole, MA

Marinna Martini prepares to deploy a NIMBBLE from the R/V Connecticut south of Martha's Vineyard

The Salt Marsh Observatory at Sage Lot Pond in the Waquoit Bay National Estuarine Research Reserve serves as an important platform for research in coastal salt marshes. Infrastrucutre in this marsh allows researchers to access sites while maintaining habitat and platform health.

A Sontek IQ ADCP measures depth and velocity of a salt marsh creek (Cape Cod, MA)

Jen Suttles collects water samples from a salt marsh tidal creek (East Falmouth, MA) for laboratory analysis of total organic carbon.  These samples will be compared to data recorded by instrumentation deployed in an adjacent tidal creek as part of research efforts to quantify carbon dynamics in coastal ecosystems