Assessing the Stability of the Atlantic Meridional Overturning Circulation of the Past, Present, and Future |
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| Authors: | LIU Wei and LIU Zhengyu |
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| Institution: | 1. Scripps Institution of Oceanography, University of California, San Diego, La Jolla, CA 92093, USA
2. Laboratory of Climate, Ocean, and Atmosphere Studies, Peking University, Beijing 100081, China;Center for Climatic Research, University of Wisconsin-Madison, Madison, WI 53706, USA |
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| Abstract: | This paper is a review of the recent development of researches on the stability of the Atlantic meridional overturning circulation (AMOC). In particular, we will review recent studies that attempt to best assess the stability of the AMOC in the past, present, and future by using a stability indicator related to the freshwater transport by the AMOC. These studies further illustrate a potentially systematic bias in the state-of-the-art atmosphere-ocean general circulation models (AOGCMs), in which the AMOCs seem to be over-stabilized relative to that in the real world. This common model bias in the AMOC stability is contributed, partly, to a common tropical bias associated with the double intertropical convergence zone (ITCZ) in most state-of-the-art AOGCMs, casting doubts on future projection of abrupt climate changes in these climate models. |
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| Keywords: | AMOC stability indicator freshwater transports ITCZ deglaciation |
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