Other ID: none
Organization(s): USGS, Woods Hole Coastal and Marine Science Center
Location: offshore shallow Beaufort Sea, Alaska, United States, North America, Arctic Ocean;
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 Date: 2011-08-01
Start Port/Location: West Dock Prudhoe Bay, AK
End Date: 2011-08-12
End Port/Location: West Dock, Prudhoe Bay, AK
Equipment Used: YSI multiparameter sonde, HYPACK, EdgeTech 424 chirp sub-bottom profiler, Single channel hydrophone, Visual Mammal ID, SWATHplus-M 234 kHz, Cavity Ring-Down Spectroscopy (CRDS), Sparker system, Edgetech Sidescan sonar, Humminbird fishfinder, Alpine Vibracorer
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
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, .