Southern Ocean

Regional Working Group zones for SOOS

Southern Ocean

Area inside the black line indicates the area constituting the Pacific Ocean prior to 2002; darker blue areas are its informal current borders following the recreation of the Southern Ocean and the reinclusion of marginal seas.

Pacific Ocean

Made in 1529, the Diogo Ribeiro map was the first to show the Pacific at about its proper size

Indian Ocean

A dolphin off Western Australia

Atlantic Ocean

In the subpolar gyre of the North Atlantic warm subtropical waters are transformed into colder subpolar and polar waters. In the Labrador Sea this water flows back to the subtropical gyre.

Arctic Ocean

The Arctic Ocean, with borders as delineated by the International Hydrographic Organization (IHO), including Hudson Bay (some of which is south of 57°N latitude, off the map) and all other marginal seas.

Portugal

Igreja de São João de Brito, Alvalade, Lisbon