Abstract
Abstract Between spring of 1988 and winter of 1990, 75 RAFOS floats were released east of Cape Hatteras near the center of the Gulf stream on the 26.8 σt surface, O (15°C). The purpose of this sequential deployment was to investigate the spatial and temporal characteristics of the meandering stream and the Lagrangian properties of fluid motion in the upper thermocline. These new observations were also intended to provide a database for comparative studies of fluid motion in the upper thermocline with similar observations made earlier (1984–85) in the middle and lower thermocline. Sixty-one of the 75 RAFOS float trajectories in the 13°–16°C layers have been analyzed from both a Lagrangian and Eulerian point of view. The results reconfirm the strong baroclinic structure of the Gulf Stream established earlier and reveal enhanced cross-stream motion with increasing depth and over the New England Seamounts, Float trajectories tend to be more convoluted east of the seamounts reflecting the large amplitude meand...
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