The Expedition - Science Crew Overview | Objectives | Science Crew | The Ship Principal Investigators Tom Weingartner University of Alaska, Fairbanks, Alaska Weingartner and his colleagues at the University of Washington, Knut Aagaard and Rebecca Woodgate, are studying the circulation and water mass modification processes on the Chukchi shelf and slope as part of the Shelf-Basin Interactions Program. This will be done using a network of four moorings at critical locations on the Chukchi shelf, and additional CTD stations. Tom is Chief Scientist on the Arctic West Summer 2002 Polar Star cruise. Bob Pickart Woods Hole Oceanographic Institution, Woods Hole, Massachusetts Pickart is studying the processes by which water is transferred from the Beaufort shelf to the deep Arctic basin, using a densely-spaced mooring array situated across the shelfbreak and upper slope. His experiment is also part of the Shelf-Basin Interactions Program, and is closely tied to the Weingartner/Aagaard/Woodgate study, since much of the water exiting the Chukchi shelf enters the Beaufort shelf. In addition to the moorings, Pickart will do a high-resolution survey of the Beaufort boundary current system, using CTDs and XCTDs. WHOI Team Members John Kemp Woods Hole Oceanographic Institution, Woods Hole, Massachusetts Kemp is the mooring technician responsible for deploying the high-resolution Beaufort slope array. He designed the different moorings, and will oversee deck operations during their deployment. John has participated in over 150 oceanographic cruises totaling nearly 2000 days at sea. Dan Torres Woods Hole Oceanographic Institution, Woods Hole, Massachusetts Torres will be collecting lowered ADCP data at each CTD station, which will provide a synoptic view of the velocity field during the cruise. Additionally, he is responsible for the programming and operation of the moored ADCPs being used in the high-resolution Beaufort slope array. Sarah Zimmermann Woods Hole Oceanographic Institution, Woods Hole, Massachusetts Zimmermann will be in charge of processing the CTD data collected on the cruise. This includes de-spiking and averaging the data, and then calibrating them using water sample measurements. Hydrographic data are one of the fundamental tools used by physical oceanographers to help us learn about the properties of the water masses, and the circulation. Chris Linder Woods Hole Oceanographic Institution, Woods Hole, Massachusetts Linder will document the daily discoveries and shipboard lives of the scientists and crew via text dispatches and photographs. He will also assist with the CTD data collection and interpretation. University of Alaska, Fairbanks Team Members David Leech University of Alaska, Fairbanks, Alaska Leech will be assembling and deploying some of the moorings for the Chukchi array. First he will perform pre-deployment checks on the instruments, and then will oversee deck operations during their deployment. Sarah Thornton Institute of Marine Science, University of Alaska, Fairbanks, Alaska Thornton will be deploying a NAS-2e Nitrate Analyzer on the Chukchi mooring located in the Central Channel. This project is being done in collaboration with Terry Whitledge of the University of Alaska. The unit will measure the annual cycle of nitrate concentration in this area of the shelf. University of Washington Team Members James Johnson University of Washington, Seattle, Washington Johnson is responsible for overseeing the deployment of part of the Chukchi moored array. This includes instrument set-up and deck operations. Thomas Aaron Morello University of Washington, Seattle, Washington Morello will be analyzing nutrients during the cruise. The CTD package contains two-dozen Niskin Bottles which will collect water at different depth levels in the water column; Morello will measure the nutrient concentrations in these samples in near-real time. Scripps Institution of Oceanography Team Members Jim Schmitt Scripps Institution of Oceanography, San Diego, California Schmitt will be responsible for running the ship’s salinometer. This is an instrument used to measure the salinity (salt content) of the water samples collected by the CTD package. This information is needed to calibrate the CTD salinity sensor. Schmitt is also an electronics technician who will trouble-shoot and help repair any problems arising with the CTD.