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USGS Coastal and Marine Geology Program

Field Activity Details for field activity 2017-001-FA

Other ID: none

Status: Pending

Organization(s): USGS, Woods Hole Coastal and Marine Science Center

Funding Program(s): USGS GAS HYDRATES (LQ000FP)

Principal Investigator(s): Carolyn Ruppel

Affiliate Investigator(s): Amanda Demopoulos, USGS; Nancy Prouty, USGS; Dan Condon, BGS; Diana Sahy, BGS

Information Specialist(s): Carolyn Ruppel

Data Type(s): Seismics: Sub Bottom Profiler, Biological Field Study: Surveys (biological), Environmental Data: CTD, Imagery: Photo, Imagery: Video, Location-Elevation: Navigation, Location-Elevation: Transects, Sampling: Biology, Sampling: Chemistry, Sampling: Geology, Sonar: Multibeam, Sonar: Sound Velocity

Scientific Purpose/Goals: Collect geologic and biological samples from Atlantic methane seeps; survey for methane plumes and acquire seafloor backscatter data


Start Port/Location: Lewes, DE

End Port/Location: Lewes, DE

Start Date: 2017-05-01

End Date: 2017-05-12

Equipment Used: Simrad EK80, Sample containers, Other, CTD 19+ with OBS, PAR, DO, Chl, POS-MV, Other, Reson 7160 (used in WH), Chirp 512i (sp)

Information to be Derived: water column imagery, seafloor backscatter, seawater parameters, ecology, authigenic carbonate dates

Summary of Activity and Data Gathered:

Staff: Other

Affiliate Staff:

Notes: Project will be funded on R/V SHarp with Global Explorer ROV; anticipate 2-3 USGS operational personnel needed for activity, which will include EK80, USGS-run USBL (rental), and possibly a pole-mounted leased MBES


Atlantic margin, Hatteras to Baltimore Canyon, shelf-break to 1500 m water depth

North: 40.29628652 South: 34.22588611 West: -75.9375 East: -71.55273438


photo of Hugh R. Sharp
Hugh R. Sharp


Baldwin, W.E., Moore, E.M., Worley, C.R., Nichols, A.R., and Ruppel, C.D., 2020, Marine geophysical data collected to support methane seep research along the U.S. Atlantic continental shelf break and upper continental slope between the Baltimore and Keller Canyons during U.S. Geological Survey Field Activities 2017-001-FA and 2017-002-FA: U.S. Geological Survey data release,

Leonte, M., Ruppel, C.D., Ruiz-Angelo, A., and Kessler, J.D., 2020, Surface methane concentrations along the Mid‐Atlantic Bight driven by aerobic subsurface production rather than seafloor gas seeps: Journal of Geophysical Research Oceans, v. 125, issue 5,

Ruppel, C., Demopoulos, A., and Prouty, N., Exploring U.S. Mid-Atlantic Margin Methane Seeps: IMMeRSS, May 2017: Oceanography.

Ruppel, C., Demopoulos, A., Prouty, N., Sahy, D., and Condon, D., 2017, Exploring U.S. Atlantic Margin Methane Seeps with a Remotely-Operated Vehicle: Fire in the Ice, DOE Newsletter, , URL:


Data Acquired

Survey EquipmentSurvey InfoData Type(s)Data Collected
Simrad EK80 --- Water column reflectivity
Sample containers --- Biology
Other --- --- ---
CTD 19+ with OBS, PAR, DO, Chl --- CTD
POS-MV --- Navigation
Other --- --- ---
Reson 7160 (used in WH) --- Multibeam
Chirp 512i (sp) --- Sub Bottom Profiler

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