A model study of ocean circulation beneath Filchner-Ronne Ice Shelf, Antarctica: Implications for bottom water formation

Adrian Jenkins, David M. Holland

Research output: Contribution to journalArticle

Abstract

An isopycnic coordinate ocean circulation model has been applied to the southern Weddell Sea, including the cavity beneath Filchner-Ronne Ice Shelf, with the aim of investigating the buoyancy-forced circulation on the continental shelf. Buoyancy forcing is associated with both the annual growth and decay of sea ice and the interaction between ice shelf and ocean. In the model a generally anti-cyclonic circulation develops beneath the ice shelf, so that new shelf waters entering the cavity in the west emerge colder and fresher in the east. The outflow contributes to a dense current that spills off the continental shelf and descends the slope. Oceanographic observations from the region are consistent with this picture and highlight the overflow as a major source of Weddell Sea Bottom Water.

Original languageEnglish (US)
JournalGeophysical Research Letters
Volume29
Issue number8
StatePublished - Apr 15 2002

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land ice
ice shelf
Antarctic regions
bottom water
oceans
continental shelves
buoyancy
continental shelf
cavity
buoyancy forcing
water
cavities
sea ice
shelves
outflow
slopes
seawater
ocean
decay
ocean circulation

ASJC Scopus subject areas

  • Earth and Planetary Sciences (miscellaneous)

Cite this

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