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Eyes in the Deep

Duke University graduate student Nick Foukal recovers a conductivity temperature depth (CTD) rosette during a recent cruise on R/V Knorr in the North Atlantic. During the trip, a team led by WHOI physical oceanographer Bob Pickart installed fixed moorings and took samples and readings such as this one as part of the Overturning in the Subpolar North Atlantic Program (OSNAP). Pickart and a group of international collaborators that includes WHOI’s Fiamma Straneo and Amy Bower will combine data from new mooring arrays across the Laborador and Irminger Seas and from existing instruments deployed across the tropical North Atlantic get a better picture of how ocean circulation in the critical North Atlantic governs and is governed by global climate. (Photo by Carolina Nobre, Woods Hole Oceanographic Institution)