Other ID: none
Organization(s): USGS, Woods Hole Coastal and Marine Science Center
Principal Investigator(s): Carolyn Ruppel
Information Specialist(s): Carolyn Ruppel
Data Type(s): Environmental Data: Conductivity, Environmental Data: Methane, Environmental Data: Temperature, Location-Elevation: Navigation, Sampling: Geology, Seismics: Sparker, Seismics: Sub Bottom Profiler, Sonar: Interferometric, Sonar: Multibeam, Sonar: Single Beam, Visual Identification: Species ID
Scientific Purpose/Goals: Subbottom imaging shallow offshore Beaufort Sea, water column imaging, seafloor imaging, coring, and real-time water sampling with CRDS.
Start Port/Location: West Dock Prudhoe Bay, AK
End Port/Location: West Dock, Prudhoe Bay, AK
Start Date: 2011-08-01
End Date: 2011-08-12
Equipment Used: HYPACK, Sparker system, SWATHplus-M 234 kHz, Single channel hydrophone, Edgetech Sidescan sonar, Alpine Vibracorer, EdgeTech 424 chirp sub-bottom profiler, YSI multiparameter sonde, Humminbird fishfinder, Cavity Ring-Down Spectroscopy (CRDS), Visual Mammal ID
Information to be Derived: Sea floor map;Bathymetric maps;Morphology;
Summary of Activity and Data Gathered: Acquired 178 km of Chirp, sparker, and Swath data and 110 km of geochemical data, including CH4 and CO2 concentrations, salinity/water temp, and weather data
Staff: Laura Brothers, John Pohlman, Charles Worley
Notes: Cruise dates ~1 through 12 August, with one full port day for equip changeover on 8 August
offshore shallow Beaufort Sea, Alaska, United States, North America, Arctic Ocean;
Ruppel, C., Brothers, L., Hart, P., and Pohlman, J, 2012, Warming-Driven Dissociation of Gas Hydrates on the Continental Shelf and Upper Continental Slope of the US Beaufort Seas [abs.]: , Arctic Frontiers 2012. Tromso, Norway, January 20, 2012.
Ruppel, C., Brothers, L., Hart, P., Maue, C., Pohlman, J., Kessler, J., Sparrow, K.M., and Worley, C, 2012, Methane Dynamics Associated with Long-Term Climate Change on the Alaskan Beaufort Sea Inner-Shelf: DOE, Fire in the Ice Newsletter, .