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for Cross-Reference List of Hydrographic Data Codes
From CIA World Factbook 2002 :
Cross-Reference List of Hydrographic Data Codes
IHO 23-4th: Limits of Oceans and Seas, Special Publication 23,
Draft 4th Edition 1986, published by the International Hydrographic
Bureau of the International Hydrographic Organization
IHO 23-3rd: Limits of Oceans and Seas, Special Publication 23, 3rd
Edition 1953, published by the International Hydrographic
Organization
ACIC M 49-1: Chart of Limits of Seas and Oceans, revised January
1958, published by the Aeronautical Chart and Information Center
(ACIC), United States Air Force; note - ACIC is now part of the
National Imagery and Mapping Agency (NIMA)
DIAM 65-18: Geopolitical Data Elements and Related Features, Data
Standard No. 4, Defense Intelligence Agency Manual 65-18, December
1994, published by the Defense Intelligence Agency
The US Government has not yet adopted a standard for hydrographic
codes similar to the Federal Information Processing Standards
(FIPS) 10-4 country codes. The names and limits of the following
oceans 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 1 23 B 1A
Ocean
South Atlantic 4 32 C 2A
Ocean
Baltic Sea 2 1 B26 7B
Indian Ocean 5 45 F 6A
Mediterranean 3.1 28 B11 -
Sea
Eastern 3.1.2 28 B - 8E
Mediterranean
Western 3.1.1 28 A - 8W
Mediterranean
Pacific Ocean - - - -
North Pacific 7 57 D 3A
Ocean
South Pacific 8 61 E 4A
Ocean
South China and 6 49, 48 D18 plus others 3U plus others
Eastern
Archipelagic
Seas
*The letters after the numbers are subdivisions, not footnotes.
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