and seas
are not always directly comparable because of differences in the
customers, needs, and requirements of the individual organizations.
Even the number of principal water bodies varies from organization to
organization. Factbook users, for example, find the Atlantic Ocean and
Pacific Ocean entries useful, but none of the following standards
include those oceans in their entirety. Nor is there any provision for
combining codes or overcodes to aggregate water bodies. The recently
delimited Southern Ocean is not included.

Principal Oceans and Seas of the World
With Hydrographic Codes by Institution

IHO 23-4th IHO 23-3rd* ACIC M 49-1 DIAM 65-18

Arctic Ocean 9 17 A 5A
Atlantic Ocean - - - -
North Atlantic Ocean 1 23 B 1A
South Atlantic Ocean 4 32 C 2A
Baltic Sea 2 1 B26 7B
Indian Ocean 5 45 F 6A
Mediterranean Sea 3.1 28 B11 -
Eastern Mediterranean 3.1.2 28 B - 8E
Western Mediterranean 3.1.1 28 A - 8W
Pacific Ocean - - - -
North Pacific Ocean 7 57 D 3A
South Pacific Ocean 8 61 E 4A
South China and Eastern
Archipelagic Seas 6 49, 48 D18 plus 3U plus
others others

*The letters after the numbers are subdivisions, not footnotes.

This page was last updated on 9 December, 2004

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Appendix F - Cross-Reference List of Geographic Names

Name Entry in The World Latitude Longitude
Factbook (deg min) (deg min)

Abidjan (capital) Cote d'Ivoire 5 19 N 4 02 W
Abkhazia (region) Georgia 43 00 N 41 00 E
Abu Dhabi (capital) United Arab 24 28 N 54 22 E
Emirates
Abu Musa (island) Iran 25 52 N 55 03 E
Abuja (capital) Nigeria