from the 3rd edition. Notes Indian Ocean The Indian Ocean washes upon southern Asia and separates Africa and Australia. The 3rd edition, currently in force, of the International Hydrographic Organization's (IHO) Limits of Oceans and Seas defines the limits of the Indian Ocean (excluding the seas it contains) as follows: On the North. The Southern limits of the Arabian Sea and the Lakshadweep Sea, the Southern limit of the Bay of Bengal, the Southern limits of the East Indian Archipelago, and the Southern limit of the Great Australian Bight. On the West. From Cape Agulhas in 20° long. East, Southward along this meridian to the Antarctic Continent. On the East. From South East Cape, the Southern point of Tasmania down the meridian 146°55'E to the Antarctic Continent. On the South. The Antarctic Continent. Note that this definition excludes any marginal waterbodies that are separately defined by the IHO (such as the Bay of Bengal and Arabian Sea), though these are usually considered to be part of the Indian Ocean. In its 2002 draft, the IHO redefined the Indian Ocean, moving its southern limit to 60°S, with the waters south of that line identified as the Southern Ocean. This new definition has not yet been ratified (and, in addition, a reservation was lodged in 2003 by Australia.) While the name "Southern Ocean" is frequently used, some geographic authorities such as the 10th edition of the World Atlas from the U.S. National Geographic Society generally show the Atlantic, Indian, and Pacific Oceans continuing to Antarctica. If and when adopted, the 2002 definition would be published in the 4th edition of Limits of Oceans and Seas, re-instituting the 2nd edition's "Southern Ocean", omitted from the 3rd edition. The boundary of the Indian Ocean is a constitutional issue for Australia. The Imperial South Australia Colonisation Act, 1834, which established and defined the Colony of South Australia defined South Australia’s southern limit as being the “Southern Ocean.” This definition was carried through to Australian constitutional law upon the Federation of Australia in 1901. Notes Pacific Ocean The Pacific is the ocean that separates Asia and Australia from the Americas. It may be further subdivided by the Equator into northern and southern portions. North Pacific Ocean The 3rd edition, currently in force, of the International Hydrographic Organization's (IHO) Limits of Oceans and Seas defines the limits of the North Pacific Ocean (excluding the seas it contains)