气候变化领域集成服务门户(CCPortal): Eurasian Cooling Linked to the Vertical Distribution of Arctic Warming

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DOI	10.1029/2020GL087212
	Eurasian Cooling Linked to the Vertical Distribution of Arctic Warming
	He S.; Xu X.; Furevik T.; Gao Y.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:10
英文摘要	Observations show that deep Arctic winter warming, extending from surface to mid-troposphere, has concurred with below-average temperature over central Eurasia. Modeling studies focusing on the response to Arctic sea ice loss have shown Arctic surface warming but no consistent atmospheric changes at midlatitude. Using a large number of simulations from coupled and uncoupled climate models, we show that Eurasian below-average temperatures are more frequent in winters with deep warming compared to shallow, near-surface warming over the Barents-Kara Seas. Dramatic weakening of the midlatitude jet stream and increase in Ural blocking frequency are more likely to occur in winters with deep Arctic warming. Deep warming is independent of sea ice forcing but follows increased poleward atmospheric energy and moisture advection from the North Atlantic to the Arctic, indicating that internal natural variability and not sea ice is the main driving forcing for deep Arctic warming-cold Eurasia pattern in historical simulations. ©2020. The Authors.
英文关键词	Climate models; Arctic sea ice; Atmospheric changes; Atmospheric energy; Historical simulation; Moisture advection; Natural variability; Surface warming; Vertical distributions; Sea ice; advection; atmospheric forcing; climate modeling; cooling; jet stream; sea ice; simulation; vertical distribution; warming; winter; Arctic; Atlantic Ocean; Atlantic Ocean (North)
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/170337
作者单位	Geophysical Institute, University of Bergen and Bjerknes Centre for Climate Research, Bergen, Norway; Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters/Key Laboratory of Meteorological Disaster, Ministry of Education, Nanjing University of Information Science and Technology, Nanjing, China; Nansen Environmental and Remote Sensing Center and Bjerknes Centre for Climate Research, Bergen, Norway; Nansen-Zhu International Research Center, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China
推荐引用方式 GB/T 7714	He S.,Xu X.,Furevik T.,et al. Eurasian Cooling Linked to the Vertical Distribution of Arctic Warming[J],2020,47(10).
APA	He S.,Xu X.,Furevik T.,&Gao Y..(2020).Eurasian Cooling Linked to the Vertical Distribution of Arctic Warming.Geophysical Research Letters,47(10).
MLA	He S.,et al."Eurasian Cooling Linked to the Vertical Distribution of Arctic Warming".Geophysical Research Letters 47.10(2020).