The Influence of a near-bottom Transport Parameterization on the Sensitivity of the Thermohaline Circulation


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lohmann [ at ] awi-bremerhaven.de

Abstract

The effect of a near bottom transport scheme on the sensitivity of the thermohaline circulation is analyzed in a coupled model. In this model with idealized geometry of the Atlantic, it is shown that in the presence of a northern source of deep water, an accurate representation of the overflow process has a stabilizing effect on the thermohaline circulation for subpolar sea surface salinity perturbations. The large scale overturning circulation can be maintained in the presence of a continued deep water formation north of the sill. Experiments suggest that without a sufficient coupling across a sill in the northern North Atlantic, the response of the ocean's circulation to subpolar atmospheric variability may be too strong.



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Article
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ISI/Scopus peer-reviewed
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Published
Eprint ID
10970
Cite as
Lohmann, G. (1998): The Influence of a near-bottom Transport Parameterization on the Sensitivity of the Thermohaline Circulation , Journal of Physical Oceanography, 28 , pp. 2095-2103 .


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