GSTDTAP  > 气候变化
DOI10.1007/s00382-018-4529-0
On the variability of the Atlantic meridional overturning circulation transports in coupled CMIP5 simulations
Xu, Xiaobiao; Chassignet, Eric P.; Wang, Fuchang
2019-06-01
发表期刊CLIMATE DYNAMICS
ISSN0930-7575
EISSN1432-0894
出版年2019
卷号52期号:11页码:6511-6531
文章类型Article
语种英语
国家USA
英文摘要

The Atlantic meridional overturning circulation (AMOC) plays a fundamental role in the climate system, and long-term climate simulations are used to understand the AMOC variability and to assess its impact. This study examines the basic characteristics of the AMOC variability in 44 CMIP5 (Phase 5 of the Coupled Model Inter-comparison Project) simulations, using the 18 atmospherically-forced CORE-II (Phase 2 of the Coordinated Ocean-ice Reference Experiment) simulations as a reference. The analysis shows that on interannual and decadal timescales, the AMOC variability in the CMIP5 exhibits a similar magnitude and meridional coherence as in the CORE-II simulations, indicating that the modeled atmospheric variability responsible for AMOC variability in the CMIP5 is in reasonable agreement with the CORE-II forcing. On multidecadal timescales, however, the AMOC variability is weaker by a factor of more than 2 and meridionally less coherent in the CMIP5 than in the CORE-II simulations. The CMIP5 simulations also exhibit a weaker long-term atmospheric variability in the North Atlantic Oscillation (NAO). However, one cannot fully attribute the weaker AMOC variability to the weaker variability in NAO because, unlike the CORE-II simulations, the CMIP5 simulations do not exhibit a robust NAO-AMOC linkage. While the variability of the wintertime heat flux and mixed layer depth in the western subpolar North Atlantic is strongly linked to the AMOC variability, the NAO variability is not.


领域气候变化
收录类别SCI-E
WOS记录号WOS:000469016700012
WOS关键词NORTH-ATLANTIC ; MULTIDECADAL OSCILLATION ; SURFACE-TEMPERATURE ; OCEAN ; IMPACT ; CLIMATE ; AMOC ; PREDICTION ; ANOMALIES
WOS类目Meteorology & Atmospheric Sciences
WOS研究方向Meteorology & Atmospheric Sciences
引用统计
被引频次:32[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/183467
专题气候变化
作者单位Florida State Univ, Ctr Ocean Atmospher Predict Studies, Tallahassee, FL 32306 USA
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Xu, Xiaobiao,Chassignet, Eric P.,Wang, Fuchang. On the variability of the Atlantic meridional overturning circulation transports in coupled CMIP5 simulations[J]. CLIMATE DYNAMICS,2019,52(11):6511-6531.
APA Xu, Xiaobiao,Chassignet, Eric P.,&Wang, Fuchang.(2019).On the variability of the Atlantic meridional overturning circulation transports in coupled CMIP5 simulations.CLIMATE DYNAMICS,52(11),6511-6531.
MLA Xu, Xiaobiao,et al."On the variability of the Atlantic meridional overturning circulation transports in coupled CMIP5 simulations".CLIMATE DYNAMICS 52.11(2019):6511-6531.
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