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  Investigating the causes of the response of the thermohaline circulation to past and present future climate changes

Stouffer, R. J., Yin, J., Gregpry, J. M., Dixon, K. W., Spelman, M. J., Hurlin, W., et al. (2006). Investigating the causes of the response of the thermohaline circulation to past and present future climate changes. Journal of Climate, 19(8), 1365-1387.

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Datensatz-Permalink: https://hdl.handle.net/11858/00-001M-0000-0011-FCD8-D Versions-Permalink: https://hdl.handle.net/21.11116/0000-000C-2416-3
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 Urheber:
Stouffer, R. J., Autor
Yin, J., Autor
Gregpry, J. M., Autor
Dixon, K. W., Autor
Spelman, M. J., Autor
Hurlin, W., Autor
Weaver, A. J., Autor
Ebyd, M., Autor
Flato, G. M., Autor
Hasumi, H., Autor
Hu, A., Autor
Jungclaus, J. H.1, Autor                 
Kamenkovich, I. V., Autor
Levermann, A., Autor
Montoya, M., Autor
Murakami, G., Autor
Nawrath, S., Autor
Oka, A., Autor
Peltier, W. R., Autor
Robitaille, D. Y., Autor
Sokolov, A., AutorVettoretti, G., AutorWeber, S. L., Autor mehr..
Affiliations:
1Director’s Research Group OES, The Ocean in the Earth System, MPI for Meteorology, Max Planck Society, ou_913553              

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 Zusammenfassung: The Atlantic thermohaline circulation (THC) is an important part of the earth’s climate system. Previous
research has shown large uncertainties in simulating future changes in this critical system. The simulated
THC response to idealized freshwater perturbations and the associated climate changes have been intercompared
as an activity of World Climate Research Program (WCRP) Coupled Model Intercomparison
Project/Paleo-Modeling Intercomparison Project (CMIP/PMIP) committees. This intercomparison among
models ranging from the earth system models of intermediate complexity (EMICs) to the fully coupled
atmosphere–ocean general circulation models (AOGCMs) seeks to document and improve understanding
of the causes of the wide variations in the modeled THC response. The robustness of particular simulation
features has been evaluated across the model results. In response to 0.1-Sv (1 Sv 106 m3 s 1) freshwater
input in the northern North Atlantic, the multimodel ensemble mean THC weakens by 30% after 100 yr.
All models simulate some weakening of the THC, but no model simulates a complete shutdown of the THC.
The multimodel ensemble indicates that the surface air temperature could present a complex anomaly
pattern with cooling south of Greenland and warming over the Barents and Nordic Seas. The Atlantic ITCZ
tends to shift southward. In response to 1.0-Sv freshwater input, the THC switches off rapidly in all model
simulations. A large cooling occurs over the North Atlantic. The annual mean Atlantic ITCZ moves into
the Southern Hemisphere. Models disagree in terms of the reversibility of the THC after its shutdown. In
general, the EMICs and AOGCMs obtain similar THC responses and climate changes with more pronounced
and sharper patterns in the AOGCMs

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Sprache(n): eng - English
 Datum: 2006-04
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: eDoc: 268816
 Art des Abschluß: -

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Titel: Journal of Climate
  Alternativer Titel : J. Clim.
Genre der Quelle: Zeitschrift
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: -
Seiten: - Band / Heft: 19 (8) Artikelnummer: - Start- / Endseite: 1365 - 1387 Identifikator: ISSN: 0894-8755