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Bifurcations of the thermohaline circulation in a simplified three-dimensional model of the world ocean and the effects of inter-basin connectivity

Bifurcations of the thermohaline circulation in a simplified three-dimensional model of the world ocean and the effects of inter-basin connectivity
Bifurcations of the thermohaline circulation in a simplified three-dimensional model of the world ocean and the effects of inter-basin connectivity
A coarse-resolution, global, three-dimensional, idealised model of the world ocean, based on the thermocline equations, is described. It is demonstrated that, at suitable resolution, such a model can be integrated for hundreds or thousands of millenia, and could therefore form a component of an earth system model designed to investigate climate change on these time scales. As in other ocean models, the thermohaline circulation is found to exhibit multiple stable states. The bifurcation structure of the model has been explored, as a function of surface saline forcing, and is found to depend on the inter-basin connectivity, the topography, and the form of the imposed wind forcing.
woce, thermohaline circulation, bifurcation, topography, wind forces
0930-7575
31-42
Edwards, N.R.
e41b719b-784e-4748-acc4-6ccbc4643c7d
Shepherd, J.G.
f38de3ac-eb3b-403f-8767-c76be68d8bf2
Edwards, N.R.
e41b719b-784e-4748-acc4-6ccbc4643c7d
Shepherd, J.G.
f38de3ac-eb3b-403f-8767-c76be68d8bf2

Edwards, N.R. and Shepherd, J.G. (2002) Bifurcations of the thermohaline circulation in a simplified three-dimensional model of the world ocean and the effects of inter-basin connectivity. Climate Dynamics, 19 (1), 31-42. (doi:10.1007/s00382-001-0207-7).

Record type: Article

Abstract

A coarse-resolution, global, three-dimensional, idealised model of the world ocean, based on the thermocline equations, is described. It is demonstrated that, at suitable resolution, such a model can be integrated for hundreds or thousands of millenia, and could therefore form a component of an earth system model designed to investigate climate change on these time scales. As in other ocean models, the thermohaline circulation is found to exhibit multiple stable states. The bifurcation structure of the model has been explored, as a function of surface saline forcing, and is found to depend on the inter-basin connectivity, the topography, and the form of the imposed wind forcing.

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More information

Published date: 2002
Keywords: woce, thermohaline circulation, bifurcation, topography, wind forces

Identifiers

Local EPrints ID: 5947
URI: http://eprints.soton.ac.uk/id/eprint/5947
ISSN: 0930-7575
PURE UUID: 6a3b3c84-9065-4302-a6e1-761369ed5c75
ORCID for J.G. Shepherd: ORCID iD orcid.org/0000-0002-5230-4781

Catalogue record

Date deposited: 27 May 2004
Last modified: 10 Nov 2021 02:46

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Contributors

Author: N.R. Edwards
Author: J.G. Shepherd ORCID iD

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