Trajectories of surface drifters, drogued at 15 m, in the north Atlantic subpolar gyre. Circles and triangles mark respectively the first and the last recorded fixes for each drifter. Each drifter is assigned a color with respect to its launching region (Gulf Stream and Newfoundland Basin: yellow; European Basin: green; Iceland and Irminger Basin: magenta; Labrador Basin: blue). The four regions defined are delimited by the thick black dashed lines.



                                         


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