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Concept information

natural phenomenon > oceanic phenomenon > sea current > Antarctic circumpolar current

Preferred term

Antarctic circumpolar current  

Definition

  • Antarctic Circumpolar Current (ACC) is an ocean current that flows clockwise (as seen from the South Pole) from west to east around Antarctica. An alternative name for the ACC is the West Wind Drift. The ACC is the dominant circulation feature of the Southern Ocean and has a mean transport estimated at 100–150 Sverdrups (Sv, million m3/s), or possibly even higher, making it the largest ocean current. The current is circumpolar due to the lack of any landmass connecting with Antarctica and this keeps warm ocean waters away from Antarctica, enabling that continent to maintain its huge ice sheet. (Adapted from: https://en.wikipedia.org/wiki/Antarctic_Circumpolar_Current)

Broader concept

Entry terms

  • West Wind Drift

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URI

http://data.loterre.fr/ark:/67375/QX8-1T35F9PW-G

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