Scientific Glossary

Glossary of terms and abbreviations relevant to the International Seabed Authority and the documents it produces

Please note that this is a constantly evolving document.

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Titlesort descending

United Nations Educational, Scientific and Cultural Organization.

Universal Transverse Mercator

A geographic coordinate system based on distances north and east from reference points. Used to create flat maps of the Earth's surface. Well suited to maps of small areas. Named after the Flemish cartographer Gerhardus Mercator (1512-1594).

Unmanned Underwater Vehicle

Collective term for Remotely Operated Vehicles and Autonomous Underwater Vehicles. Abbreviated to UUV. Examples includeAutosub and Epaulard.


United States Naval Electronic Laboratory.


Universal Transverse Mercator.


Unmanned Underwater Vehicle.