The Influence of a near-bottom Transport Parameterization on the Sensitivity of the Thermohaline Circulation
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 proce...
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| Format: | Article in Journal/Newspaper |
| Language: | unknown |
| Published: |
1998
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| Online Access: | https://epic.awi.de/id/eprint/10970/ https://hdl.handle.net/10013/epic.21434 |
| Summary: | 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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