Other ID: none
Organization(s): USGS, Woods Hole Coastal and Marine Science Center
Location: centered on Harrison Bay, shallow Beaufort Sea, Alaska, United States, North America, Arctic Ocean;
Principal Investigator(s): Carolyn Ruppel
Information Specialist(s): Carolyn Ruppel
Data Type(s): Location-Elevation: Navigation, Seismics: Sparker, Seismics: Sub Bottom Profiler, Sonar: Sidescan, Sonar: Single Beam
Scientific Purpose/Goals: 1) Image seafloor. 2) Map top of subsea permafrost in very near shore. 3) Survey for possible methane emissions at distal inferred end of permafrost offshore. 4) Collect data to help constrain whether seaward limit of permafrost is 'real' or related to a lithologic change.
Start Date: 2010-08-03
Start Port/Location: Prudhoe Bay West Dock, AK
End Date: 2010-08-09
End Port/Location: Prudhoe Bay West Dock, AK
Equipment Used: EdgeTech 424 chirp sub-bottom profiler, Single channel hydrophone, Humminbird fishfinder, GPS (wh), Edgetech DF-1000 sidescan sonar, Sparker system
Information to be Derived:
Summary of Activity and Data Gathered: Transit from Prudhoe Bay West Dock to eastern Harrison Bay; collected seismic data along lines running NE-SW and long tie lines running WNW to ESE until weather turned bad.
Staff: Charles Worley
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, .