The Relative Importance of Northern Overflow and Subpolar Deep Convection for the North Atlantic Thermohaline Circulation
The relative importance of the formation of different North Atlantic Deep Water masses on the meridional overturning is examined with a non-eddy-resolving version of the CME model. In contrast to a frequently held belief, convective deep-water formation south of the North Atlantic sill does not sign...
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1997
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ftoceanrep:oai:oceanrep.geomar.de:8077 2023-05-15T17:25:24+02:00 The Relative Importance of Northern Overflow and Subpolar Deep Convection for the North Atlantic Thermohaline Circulation Döscher, Ralf Redler, Rene 1997 text https://oceanrep.geomar.de/id/eprint/8077/ https://oceanrep.geomar.de/id/eprint/8077/1/1520-0485%281997%29027_1894_triono_2.0.co%3B2.pdf https://doi.org/10.1175/1520-0485(1997)027<1894:TRIONO>2.0.CO;2 en eng AMS (American Meteorological Society) https://oceanrep.geomar.de/id/eprint/8077/1/1520-0485%281997%29027_1894_triono_2.0.co%3B2.pdf Döscher, R. and Redler, R. (1997) The Relative Importance of Northern Overflow and Subpolar Deep Convection for the North Atlantic Thermohaline Circulation. Open Access Journal of Physical Oceanography, 27 . pp. 1894-1902. DOI 10.1175/1520-0485(1997)027<1894:TRIONO>2.0.CO;2 <https://doi.org/10.1175/1520-0485%281997%29027%3C1894%3ATRIONO%3E2.0.CO%3B2>. doi:10.1175/1520-0485(1997)027<1894:TRIONO>2.0.CO;2 info:eu-repo/semantics/openAccess Article PeerReviewed 1997 ftoceanrep https://doi.org/10.1175/1520-0485(1997)027<1894:TRIONO>2.0.CO;2 2023-04-07T14:56:00Z The relative importance of the formation of different North Atlantic Deep Water masses on the meridional overturning is examined with a non-eddy-resolving version of the CME model. In contrast to a frequently held belief, convective deep-water formation south of the North Atlantic sill does not significantly force the large-scale overturning if an adequate overflow across the sill can be represented by the model. The sensitivity of the meridional transport to the surface thermohaline forcing is increased under alternate climatic conditions such as increased surface cooling or reduced overflow compared to the present-day situation. The results indicate that climate models may be too sensitive to decadal timescale variability of the surface forcing in subpolar regions. Article in Journal/Newspaper North Atlantic Deep Water North Atlantic North atlantic Thermohaline circulation OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
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Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
op_collection_id |
ftoceanrep |
language |
English |
description |
The relative importance of the formation of different North Atlantic Deep Water masses on the meridional overturning is examined with a non-eddy-resolving version of the CME model. In contrast to a frequently held belief, convective deep-water formation south of the North Atlantic sill does not significantly force the large-scale overturning if an adequate overflow across the sill can be represented by the model. The sensitivity of the meridional transport to the surface thermohaline forcing is increased under alternate climatic conditions such as increased surface cooling or reduced overflow compared to the present-day situation. The results indicate that climate models may be too sensitive to decadal timescale variability of the surface forcing in subpolar regions. |
format |
Article in Journal/Newspaper |
author |
Döscher, Ralf Redler, Rene |
spellingShingle |
Döscher, Ralf Redler, Rene The Relative Importance of Northern Overflow and Subpolar Deep Convection for the North Atlantic Thermohaline Circulation |
author_facet |
Döscher, Ralf Redler, Rene |
author_sort |
Döscher, Ralf |
title |
The Relative Importance of Northern Overflow and Subpolar Deep Convection for the North Atlantic Thermohaline Circulation |
title_short |
The Relative Importance of Northern Overflow and Subpolar Deep Convection for the North Atlantic Thermohaline Circulation |
title_full |
The Relative Importance of Northern Overflow and Subpolar Deep Convection for the North Atlantic Thermohaline Circulation |
title_fullStr |
The Relative Importance of Northern Overflow and Subpolar Deep Convection for the North Atlantic Thermohaline Circulation |
title_full_unstemmed |
The Relative Importance of Northern Overflow and Subpolar Deep Convection for the North Atlantic Thermohaline Circulation |
title_sort |
relative importance of northern overflow and subpolar deep convection for the north atlantic thermohaline circulation |
publisher |
AMS (American Meteorological Society) |
publishDate |
1997 |
url |
https://oceanrep.geomar.de/id/eprint/8077/ https://oceanrep.geomar.de/id/eprint/8077/1/1520-0485%281997%29027_1894_triono_2.0.co%3B2.pdf https://doi.org/10.1175/1520-0485(1997)027<1894:TRIONO>2.0.CO;2 |
genre |
North Atlantic Deep Water North Atlantic North atlantic Thermohaline circulation |
genre_facet |
North Atlantic Deep Water North Atlantic North atlantic Thermohaline circulation |
op_relation |
https://oceanrep.geomar.de/id/eprint/8077/1/1520-0485%281997%29027_1894_triono_2.0.co%3B2.pdf Döscher, R. and Redler, R. (1997) The Relative Importance of Northern Overflow and Subpolar Deep Convection for the North Atlantic Thermohaline Circulation. Open Access Journal of Physical Oceanography, 27 . pp. 1894-1902. DOI 10.1175/1520-0485(1997)027<1894:TRIONO>2.0.CO;2 <https://doi.org/10.1175/1520-0485%281997%29027%3C1894%3ATRIONO%3E2.0.CO%3B2>. doi:10.1175/1520-0485(1997)027<1894:TRIONO>2.0.CO;2 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1175/1520-0485(1997)027<1894:TRIONO>2.0.CO;2 |
_version_ |
1766116810918199296 |