Stability of North Atlantic Deep Water formation in a global ocean general circulation model

S. B. Power, A. M. Moore, D. A. Post, N. R. Smith, Richard Kleeman

Research output: Contribution to journalArticle

Abstract

A global ocean GCM is forced using mixed boundary conditions. Freshwater flux anomalies lasting 5 years are then applied over the western half of the subpolar gyre in the northern North Atlantic. The current climate is found to be stable to anomalies that have salt deficits equivalent to about seven times that estimated for the "great salinity anomaly' of 1968-1982. Above this level the thermohaline circulation collapses to a state in which the zonally averaged overturning associated with North Atlantic Deep Water formation is only about half its original value, SSTs over the North Atlantic are lowered, and both the subpolar and subtropical gyres have weakened horizontal transports. -from Authors

Original languageEnglish (US)
Pages (from-to)904-916
Number of pages13
JournalJournal of Physical Oceanography
Volume24
Issue number5
StatePublished - 1994

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deep water formation
North Atlantic Deep Water
global ocean
general circulation model
anomaly
thermohaline circulation
gyre
boundary condition
sea surface temperature
salt
salinity
climate

ASJC Scopus subject areas

  • Oceanography

Cite this

Stability of North Atlantic Deep Water formation in a global ocean general circulation model. / Power, S. B.; Moore, A. M.; Post, D. A.; Smith, N. R.; Kleeman, Richard.

In: Journal of Physical Oceanography, Vol. 24, No. 5, 1994, p. 904-916.

Research output: Contribution to journalArticle

Power, S. B. ; Moore, A. M. ; Post, D. A. ; Smith, N. R. ; Kleeman, Richard. / Stability of North Atlantic Deep Water formation in a global ocean general circulation model. In: Journal of Physical Oceanography. 1994 ; Vol. 24, No. 5. pp. 904-916.
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