Regional response of winter snow cover over the Northern Eurasia to late autumn Arctic sea ice and associated mechanism

doi:10.1016/j.atmosres.2019.02.010

IEECAS OpenIR > 黄土与第四纪地质国家重点实验室（2010~）

	Regional response of winter snow cover over the Northern Eurasia to late autumn Arctic sea ice and associated mechanism
	Xu, B (Xu, Bei)1,2; Chen, HS (Chen, Haishan)1,2; Gao, CJ (Gao, Chujie)3,4; Zhou, BT (Zhou, Botao)1,2; Sun, SL (Sun, Shanlei)1,2; Zhu, SG (Zhu, Siguang)1,2
通讯作者	Chen, Haishan(haishan@nuist.edu.cn)
	2019-07-01
发表期刊	ATMOSPHERIC RESEARCH
ISSN	0169-8095
卷号	222 页码:100-113
产权排序	4
摘要	Variations of sea ice can exert significant impacts on the atmospheric general circulation, temperature and precipitation, resulting in anomalous land surface conditions such as snow cover. In this study, we explored the possible impacts of the abnormal late autumn Arctic sea ice on winter snow depth over the Eurasia, especially the mechanism responsible for regional response of the snow cover to the sea ice anomalies through both observational analysis based on multi-source snow depth data and numerical sensitivity experiments. Results show that with decreasing sea ice in the Barents and Kara Seas (BKS) region, the snow depth exhibits evident regional responses, which are featured by decreased snow depth in the North Eurasia but increased in central Europe. Further analysis suggests that the Arctic Oscillation (AO) is an important connection between the BKS sea ice and anomalous winter snow depth, which affect both the temperature and the precipitation in winter over the Eurasia. The regional difference mainly comes from significant differences in regional atmospheric general circulation anomalies as well as the various controlling factors affecting the formation of the snowfall. In North Eurasia, water vapor plays a decisive role in the formation of the winter snowfall and further the winter snow depth. Positive (negative) BKS sea ice anomaly generally induces positive (negative) AO pattern, which can enhance (weaken) the zonal wind and increase (decrease) water vapor transportation to the North Eurasia, causing increased (decreased) winter snow depth. In contrast, in Europe, temperature is the dominant factor affecting the formation of the snowfall and the snow depth. Positive (negative) AO pattern, enhances (weakens) the warm moist advection and thus leads to increased (decreased) temperatures in the Europe, consequently resulting in reduced (increased) winter snow depth.
关键词	Eurasian snow cover Arctic Sea Ice Arctic oscillation Regional response
DOI	10.1016/j.atmosres.2019.02.010
关键词[WOS]	ATMOSPHERIC CIRCULATION ; PHYSICAL-MECHANISMS ; VARIABILITY ; CLIMATE ; TEMPERATURE ; HEMISPHERE ; IMPACT ; OSCILLATION ; LINKING ; PATTERN
收录类别	SCI ; SCIE
语种	英语
资助项目	National Natural Science Foundation of China[41625019] ; National Natural Science Foundation of China[41230422] ; Fundamental Research Funds for the Central Universities[2019B18814] ; Open Research Fund of the State Key Laboratory of Loess and Quaternary Geology of China[SKLLQG1806] ; Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
WOS研究方向	Meteorology & Atmospheric Sciences
项目资助者	National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Open Research Fund of the State Key Laboratory of Loess and Quaternary Geology of China ; Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
WOS类目	Meteorology & Atmospheric Sciences
WOS记录号	WOS:000463123500009
出版者	ELSEVIER SCIENCE INC
引用统计	被引频次：17[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/10969
专题	黄土与第四纪地质国家重点实验室（2010~）
作者单位	1.KLME, ILCEC,CIC-FEMD, NUIST,Nanjing 210044, China; 2.School of Atmospheric Sciences, NUIST, Nanjing 210044, China; 3.College of Oceanography, Hohai University, Nanjing 210098, China; 4.State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710075, China
推荐引用方式 GB/T 7714	Xu, B ,Chen, HS ,Gao, CJ ,et al. Regional response of winter snow cover over the Northern Eurasia to late autumn Arctic sea ice and associated mechanism[J]. ATMOSPHERIC RESEARCH,2019,222:100-113.
APA	Xu, B ,Chen, HS ,Gao, CJ ,Zhou, BT ,Sun, SL ,&Zhu, SG .(2019).Regional response of winter snow cover over the Northern Eurasia to late autumn Arctic sea ice and associated mechanism.ATMOSPHERIC RESEARCH,222,100-113.
MLA	Xu, B ,et al."Regional response of winter snow cover over the Northern Eurasia to late autumn Arctic sea ice and associated mechanism".ATMOSPHERIC RESEARCH 222(2019):100-113.

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