Figure 2. Bathymetry (in meters) of the "Southern Gateway" region of the northeast Atlantic showing major physiographic features. Norwegian Sea Overflow Water (NSOW) originates in the Nordic seas, and in this region spills across the Greenland-Scotland Ridge as Wyville-Thompson Ridge Overflow Water (WTRO) or Iceland Sea Overflow Water (ISOW). RR=Reykjanes Ridge. .

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