Relationship between the sharp decrease in dust storm frequency over East Asia and the abrupt loss of Arctic sea ice in the early 1980s

doi:10.1017/S0016756819000967

IEECAS OpenIR > 古环境研究室

	Relationship between the sharp decrease in dust storm frequency over East Asia and the abrupt loss of Arctic sea ice in the early 1980s
	Shang, Ke 1,2; Liu, Xiaodong 1,2,3
通讯作者	Liu, Xiaodong(liuxd@loess.llqg.ac.cn)
	2020-05-01
发表期刊	GEOLOGICAL MAGAZINE
ISSN	0016-7568
卷号	157 期号:5 页码:729-740
摘要	Based on dust storm frequency (DSF) data from the China Meteorological Administration, Arctic sea-ice concentration (SIC) data from the Hadley Centre, and atmospheric reanalysis data from the National Centers for Environmental Prediction (NCEP) and National Center for Atmospheric Research (NCAR), temporal variations and regime shifts of East Asian DSF and Arctic SIC during 1961-2015 are revealed, and the possible relationship between them is explored. The results show that East Asian DSF in spring is closely associated with the preceding winter SIC from the northern Greenland Sea to the Barents Sea (20 degrees W-60 degrees E, 74.5 degrees N-78.5 degrees N). In the past half-century, both East Asian DSF and Arctic SIC have shown significant declining trends, with consistent regime shifts in the early 1980s. Further statistical analyses indicate that the abrupt decrease of East Asian DSF in spring may be attributed to the concurrent sharp loss of Arctic SIC in the preceding winter. It is the loss of Arctic SIC that causes the atmospheric circulation anomalies downstream by stimulating a Rossby wave train, resulting in decelerated wind speed, dampened vertical wind shear and restrained synoptic-scale disturbances over the dust source region, eventually leading to the decline in East Asian DSF over decadal timescales.
关键词	East Asian dust storm Arctic sea ice 1980s regime shift Rossby wave train
DOI	10.1017/S0016756819000967
关键词[WOS]	EURASIAN TELECONNECTION ; HAZE POLLUTION ; WAVE-ACTIVITY ; DESERT DUST ; CLIMATE ; CHINA ; PRECIPITATION ; CONNECTIONS ; PACIFIC ; ROLES
收录类别	SCI ; SCI
语种	英语
资助项目	National Key Research and Development Program of China[2016YFA0601904] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDA20070103] ; National Natural Science Foundation of China[41690115] ; China's Ministry of Environmental Protection[DQGG0104]
WOS研究方向	Geology
项目资助者	National Key Research and Development Program of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China ; China's Ministry of Environmental Protection
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:000534526500004
出版者	CAMBRIDGE UNIV PRESS
引用统计	被引频次：6[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/361006/14819
专题	古环境研究室
通讯作者	Liu, Xiaodong
作者单位	1.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China
推荐引用方式 GB/T 7714	Shang, Ke,Liu, Xiaodong. Relationship between the sharp decrease in dust storm frequency over East Asia and the abrupt loss of Arctic sea ice in the early 1980s[J]. GEOLOGICAL MAGAZINE,2020,157(5):729-740.
APA	Shang, Ke,&Liu, Xiaodong.(2020).Relationship between the sharp decrease in dust storm frequency over East Asia and the abrupt loss of Arctic sea ice in the early 1980s.GEOLOGICAL MAGAZINE,157(5),729-740.
MLA	Shang, Ke,et al."Relationship between the sharp decrease in dust storm frequency over East Asia and the abrupt loss of Arctic sea ice in the early 1980s".GEOLOGICAL MAGAZINE 157.5(2020):729-740.