The role of the thermohaline circulation in abrupt climate change

被引：0
作者：
Peter U. Clark
Nicklas G. Pisias
Thomas F. Stocker
Andrew J. Weaver
机构：
[1] Oregon State University,Department of Geosciences
[2] College of Oceanic and Atmospheric Sciences,undefined
[3] Oregon State University,undefined
[4] Climate and Environmental Physics,undefined
[5] University of Bern,undefined
[6] Physics Institute,undefined
[7] School of Earth and Ocean Sciences,undefined
[8] University of Victoria,undefined
来源：
Nature | 2002年 / 415卷
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摘要：
The possibility of a reduced Atlantic thermohaline circulation in response to increases in greenhouse-gas concentrations has been demonstrated in a number of simulations with general circulation models of the coupled ocean–atmosphere system. But it remains difficult to assess the likelihood of future changes in the thermohaline circulation, mainly owing to poorly constrained model parameterizations and uncertainties in the response of the climate system to greenhouse warming. Analyses of past abrupt climate changes help to solve these problems. Data and models both suggest that abrupt climate change during the last glaciation originated through changes in the Atlantic thermohaline circulation in response to small changes in the hydrological cycle. Atmospheric and oceanic responses to these changes were then transmitted globally through a number of feedbacks. The palaeoclimate data and the model results also indicate that the stability of the thermohaline circulation depends on the mean climate state.
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页码：863 / 869
页数：6
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