Reduced interdecadal variability of Atlantic Meridional Overturning Circulation under global warming

The Atlantic Meridional Overturning Circulation (AMOC) is a key component of the climate system, and its interdecadal variability (IV) significantly modulates climate changes around the North Atlantic region and worldwide. We report a robust shortening in period and weakening in amplitude of AMOC-IV...

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Bibliographic Details
Published in:Proceedings of the National Academy of Sciences
Main Authors: Cheng, Jun, Liu, Zhengyu, Zhang, Shaoqing, Liu, Wei, Dong, Lina, Liu, Peng, Li, Hongli
Format: Text
Language:English
Published: National Academy of Sciences 2016
Subjects:
Physical Sciences
North Atlantic
Online Access:http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4812739/
http://www.ncbi.nlm.nih.gov/pubmed/26951654
https://doi.org/10.1073/pnas.1519827113
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Summary:The Atlantic Meridional Overturning Circulation (AMOC) is a key component of the climate system, and its interdecadal variability (IV) significantly modulates climate changes around the North Atlantic region and worldwide. We report a robust shortening in period and weakening in amplitude of AMOC-IV in response to future global warming, which may be contributed to by increased oceanic stratification and, in turn, speedup of Rossby wave propagation. This finding sheds light on the mechanism of AMOC-IV responses to varying background climatology and global warming and therefore should contribute significantly to our understanding and projection of future climate changes.

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