Antarctic Circumpolar Deep Water

E434167

Antarctic Circumpolar Deep Water is a cold, dense, nutrient-rich water mass that circulates around Antarctica at depth, playing a key role in global ocean circulation and climate regulation.

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All labels observed (2)

Statements (45)

Predicate Object
instanceOf deep water mass
water mass
affects oxygen distribution in the deep ocean
storage of anthropogenic CO2 in the deep ocean
canContributeTo basal melting of Antarctic ice shelves
circulatesAround Antarctica NERFINISHED
circulationPattern eastward encircling flow around Antarctica
circulationTimescale multi-century timescale
density relatively high compared to overlying waters
depthRange typically between about 2000 and 4000 meters
flowsThrough Atlantic Ocean NERFINISHED
Indian Ocean NERFINISHED
Pacific Ocean NERFINISHED
formedBy mixing of Circumpolar Deep Water with shelf waters
mixing of North Atlantic Deep Water with Antarctic waters
formsPartOf Antarctic Circumpolar Current system NERFINISHED
hasAbbreviation ACDW NERFINISHED
hasProperty cold
dense
nutrient-rich
hasRole climate regulation
link between surface and deep ocean
transport of nutrients
ventilation of the deep ocean
influences biological productivity
carbon cycle
global heat distribution
interactsWith Antarctic ice shelves
Antarctic sea ice processes
isComponentOf meridional overturning circulation
isImportantFor paleoclimate reconstructions
understanding future climate change
isTrackedBy temperature-salinity characteristics
locatedIn Southern Ocean
partOf global ocean circulation
relatedTo Antarctic Bottom Water NERFINISHED
North Atlantic Deep Water NERFINISHED
salinityRange approximately 34.6 to 34.8 PSU
suppliesNutrientsTo lower-latitude surface waters via upwelling
surface waters of the Southern Ocean
temperatureRange approximately 0 to 3 degrees Celsius
upwells along some continental margins
in regions of divergence in the Southern Ocean
waterMassOriginRegion around the Antarctic Circumpolar Current
waterMassType Circumpolar Deep Water NERFINISHED

Referenced by (2)

Full triples — surface form annotated when it differs from this entity's canonical label.

West Wind Drift interactsWith Antarctic Circumpolar Deep Water
Weddell–Scotia Confluence hasWaterMass Antarctic Circumpolar Deep Water
this entity surface form: Circumpolar Deep Water