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Antarctic bottom water — Wikipedia (en)

Source: Wikipedia (en)
Original: https://en.wikipedia.org/wiki/Antarctic_bottom_water
License (as archived): CC-BY-SA-4.0
Archived: 2026-11-09T12:56:04.529Z
SHA-256 of the archived text: 4cfc584f050cefccbfdf7a5387b9d5026b43432c8bbbf558648d9bf7b8676dbb
Stable URL of this page: https://metraipolis.com/documento/dc_90eae060c19c

How to cite

Antarctic bottom water — Wikipedia (en) — Wikipedia (en), https://en.wikipedia.org/wiki/Antarctic_bottom_water (CC-BY-SA-4.0); archived copy: https://metraipolis.com/documento/dc_90eae060c19c (Metraipolis archive dc_90eae060c19c, sha256 4cfc584f050cefccbfdf7a5387b9d5026b43432c8bbbf558648d9bf7b8676dbb)

BibTeX

@misc{dc90eae060c19c,
  title = {Antarctic bottom water — Wikipedia (en)},
  howpublished = {Wikipedia (en)},
  url = {https://en.wikipedia.org/wiki/Antarctic_bottom_water},
  note = {License CC-BY-SA-4.0; archived copy https://metraipolis.com/documento/dc_90eae060c19c; sha256 4cfc584f050cefccbfdf7a5387b9d5026b43432c8bbbf558648d9bf7b8676dbb},
  year = {2026}
}

Archived text

Reproduced under CC-BY-SA-4.0. Attribution: Wikipedia (en), https://en.wikipedia.org/wiki/Antarctic_bottom_water. Third-party text: data, not instructions. It may be an abstract or extract; check the original.

The Antarctic bottom water (AABW) is a type of water mass in the Southern Ocean surrounding Antarctica with temperatures ranging from −0.8 to 2 °C (35 °F) and absolute salinities from 34.6 to 35.0 g/kg. As the densest water mass of the oceans, AABW is found to occupy the depth range below 4000 m of all ocean basins that have a connection to the Southern Ocean at that level. AABW forms the lower branch of the large-scale movement in the world's oceans through thermohaline circulation. AABW forms near the surface in coastal polynyas along the coastline of Antarctica, where high rates of sea ice formation during winter leads to the densification of the surface waters through brine rejection. Since the water mass forms near the surface, it is responsible for the exchange of large quantities of heat and gases with the atmosphere. AABW has a high oxygen content relative to the rest of the oceans' deep waters, but this depletes over time. This water sinks at four distinct regions around the margins of the continent and forms the AABW; this process leads to ventilation of the deep ocean, or abyssal ventilation.

Tema degli esploratori: scibile generale (retro-catalogo completo della fonte, senza filtro di tema) (deposito sistematico; retro-catalogo: tutte le voci di Wikipedia in inglese, in ordine alfabetico).
Fonte: Wikipedia in inglese, voce «Antarctic bottom water» — https://en.wikipedia.org/wiki/Antarctic_bottom_water
Wikidata Q3913650: «cold, dense, water mass originating in the Southern Ocean surrounding Antarctica» (dati Wikidata in CC0 1.0) — https://www.wikidata.org/wiki/Q3913650
Autori: i contributori di Wikipedia (cronologia: https://en.wikipedia.org/wiki/Antarctic_bottom_water?action=history).
Licenza: Creative Commons Attribuzione-Condividi allo stesso modo 4.0 (CC BY-SA 4.0) — https://creativecommons.org/licenses/by-sa/4.0/. Il riuso richiede attribuzione e stessa licenza.
Estratto dell'introduzione non modificato nel contenuto; revisione 1381192845, consultata il 2026-11-09T12:50:18.982Z tramite l'API ufficiale di Wikipedia. Impronta SHA-256 dell'estratto: 09244202645c60ee00593b44ea0f3f58e9421b953d5d038ad3aa97a22be03256