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| Titel |
Changes in extreme regional sea surface height due to an abrupt weakening of the Atlantic meridional overturning circulation |
| VerfasserIn |
S.-E. Brunnabend, H. A. Dijkstra, M. A. Kliphuis, B. van Werkhoven, H. E. Bal, F. Seinstra, J. Maassen, M. van Meersbergen |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1812-0784
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| Digitales Dokument |
URL |
| Erschienen |
In: Ocean Science ; 10, no. 6 ; Nr. 10, no. 6 (2014-11-07), S.881-891 |
| Datensatznummer |
250117090
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| Publikation (Nr.) |
 copernicus.org/os-10-881-2014.pdf |
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| Zusammenfassung |
| As an extreme scenario of dynamical sea level changes,
regional sea surface height (SSH) changes that occur in the North Atlantic due
to an abrupt weakening of the Atlantic meridional overturning circulation
(AMOC) are simulated. Two versions of the same ocean-only model are used to study
the effect of ocean model resolution on these SSH changes: a high-resolution
(HR) strongly eddying version and a low-resolution (LR) version in which the
effect of eddies is parameterised. The weakening of the AMOC is induced
in both model versions by applying strong freshwater perturbations around
Greenland. A rapid decrease of the AMOC in the HR version
induces much shorter return times of several specific regional and coastal
extremes in North Atlantic SSH than in the LR version. This effect is
caused by a change in main eddy pathways associated with a change in
separation latitude of the Gulf Stream. |
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