Figure 10: Conceptual illustration of the Atlantic con veyor circulation. High salinity water is chilled and sinks in the far North Atlantic, promoting a compensating northward surface layer flow of warm, high salinity water (after Broecker 1991). Important components of the southern circumpolar circulations, represented by the dashed lines, have been added to Broecker's original figure (see text). The area labeled ``IT" just northwest of Australia specifies the ``Indonesian Throughflow``. The encircled numbers represent estimated long term mean values for upper-level current flux into the South Atlantic Ocean in Sverdrups (Sv =3D 10⁶ m³/s) from the South Pacific (10 Sv) and from the South Indian Ocean (4 Sv) which are entrained into the northward moving upper layer circulation of the South Atlantic.