Figure 1. Schematic representation of the AMOC emphasizing the separation of the northward and southward limbs vertically in the subtropics and horizontally in the subpolar gyre and Nordic Seas. Note that the majority of subtropical and subpolar waters recirculate in their respective gyres, a process that is not depicted in this figure. The three cells apparent in the density-space streamfunction (Fig. 2b) are also shown: Greenland, Iceland, and Norwegian Seas (GIN) cell, Labrador Sea Water (LSW) cell, and subtropical mode water (STMW) cell.