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A model intercomparison of changes in the Atlantic thermohaline circulation in response to increasing atmospheric CO2 concentration

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Montoya Redondo, María Luisa and otros, ... (2005) A model intercomparison of changes in the Atlantic thermohaline circulation in response to increasing atmospheric CO2 concentration. Geophysical research letters, 32 (12). ISSN 0094-8276

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Official URL: http://dx.doi.org/10.1029/2005GL023209




Abstract

As part of the Coupled Model Intercomparison Project, integrations with a common design have been undertaken with eleven different climate models to compare the response of the Atlantic thermohaline circulation ( THC) to time-dependent climate change caused by increasing atmospheric CO2 concentration. Over 140 years, during which the CO2 concentration quadruples, the circulation strength declines gradually in all models, by between 10 and 50%. No model shows a rapid or complete collapse, despite the fairly rapid increase and high final concentration of CO2. The models having the strongest overturning in the control climate tend to show the largest THC reductions. In all models, the THC weakening is caused more by changes in surface heat flux than by changes in surface water flux. No model shows a cooling anywhere, because the greenhouse warming is dominant.


Item Type:Article
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© 2005 by the American Geophysical Union.
Artículo firmado por 18 autores.
We are grateful to Cathy Johnson, Bill Hurlin and Mike Spelman for comments on the manuscript, to Frank Koesters for discussion, to Jianjun Yin for his help in preparing the paper, to Oleg Saenko and an anonymous referee for their reviews, and to our respective funding agencies for support.

Uncontrolled Keywords:Climate
Subjects:Sciences > Physics > Astrophysics
Sciences > Physics > Astronomy
ID Code:37954
Deposited On:31 May 2016 13:42
Last Modified:10 Dec 2018 15:05

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