气候变化领域集成服务门户(CCPortal): Performance of the CMIP5 models in simulating the Arctic Oscillation during boreal spring

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DOI	10.1007/s00382-019-04792-3
	Performance of the CMIP5 models in simulating the Arctic Oscillation during boreal spring
	Chen S.; Wu R.; Chen W.; Song L.
发表日期	2019
ISSN	0930-7575
起始页码	2083
结束页码	2101
卷号	53 期号:2020-03-04
英文摘要	This study evaluates the performance of thirty coupled models from the Coupled Model Intercomparison Project Phase 5 (CMIP5) in capturing the Arctic Oscillation (AO) during boreal spring. We focus on model’s ability in simulating spring AO’s spatial structure, dominant temporal frequencies and climatic impacts. The anomalous anticyclone over the North Pacific and the North Atlantic in the positive spring AO phase is much stronger in most of the models than in the observations. This may be due to that most models simulate a stronger interannual variability of atmospheric anomalies over the North Pacific and North Atlantic. In addition, the center of the anomalous anticyclone over the North Pacific in the MME shifts obviously southeastward and that over the North Atlantic shift northeastward compared to the observations. Inter-model longitudinal spread is larger than the latitudinal spread in the anomalous anticyclone center over both the North Pacific and North Atlantic. Most of the models produce periods longer than the observed 4-year spectral peak in spring AO index. In addition, the model’s ability in reproducing the vertical structure of zonal wind tends to have a close relation with the model’s performance in capturing the vertical structure of air temperature related to the spring AO. Furthermore, there exist larger spreads among the models in simulating the spring AO-related surface air temperature over the Russian Far East and the west coast of North America. These spreads were partly related to the biases of the models in capturing the atmospheric circulation anomalies related to the Pacific center of the spring AO. © 2019, Springer-Verlag GmbH Germany, part of Springer Nature.
英文关键词	Climatic impacts; CMIP5; Dominant period; Spatial structures; Spring AO
语种	英语
scopus关键词	Arctic Oscillation; atmospheric circulation; climate change; CMIP; computer simulation; numerical model; spatiotemporal analysis; zonal wind; North America; Russian Far East; Russian Federation
来源期刊	Climate Dynamics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/146115
作者单位	Center for Monsoon System Research, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China; Institute of Urban Meteorology, China Meteorological Administration, Beijing, China; School of Earth Sciences, Zhejiang University, Hangzhou, China; State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China
推荐引用方式 GB/T 7714	Chen S.,Wu R.,Chen W.,et al. Performance of the CMIP5 models in simulating the Arctic Oscillation during boreal spring[J],2019,53(2020-03-04).
APA	Chen S.,Wu R.,Chen W.,&Song L..(2019).Performance of the CMIP5 models in simulating the Arctic Oscillation during boreal spring.Climate Dynamics,53(2020-03-04).
MLA	Chen S.,et al."Performance of the CMIP5 models in simulating the Arctic Oscillation during boreal spring".Climate Dynamics 53.2020-03-04(2019).