Starting in 2003, oceanographers released 76 floats off Newfoundland at depths of either 700 or 1,500 meters in the Deep Western Boundary Current (DWBC), considered the main conduit for southward-flowing water from the northern North Atlantic. They tracked the floats daily over two years using moored sound sources. The tracks for the first 40 floats (above) showed that, surprisingly, few floats were swept down the DWBC; a number (red dots) meandered southward instead through the interior region of the ocean. (Data courtesy of Amy Bower, Woods Hole Oceanographic Institution)[back]
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