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DOI | 10.1007/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
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ISSN | 0930-7575 |
EISSN | 1432-0894 |
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 | |
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 |
推荐引用方式 GB/T 7714 | 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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