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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, Ke1,2; Liu, Xiaodong1,2,3
Corresponding AuthorLiu, Xiaodong(liuxd@loess.llqg.ac.cn)
2020-05-01
Source PublicationGEOLOGICAL MAGAZINE
ISSN0016-7568
Volume157Issue:5Pages:729-740
AbstractBased 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.
KeywordEast Asian dust storm Arctic sea ice 1980s regime shift Rossby wave train
DOI10.1017/S0016756819000967
WOS KeywordEURASIAN TELECONNECTION ; HAZE POLLUTION ; WAVE-ACTIVITY ; DESERT DUST ; CLIMATE ; CHINA ; PRECIPITATION ; CONNECTIONS ; PACIFIC ; ROLES
Indexed BySCI ; SCI
Language英语
Funding ProjectNational 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 Research AreaGeology
Funding OrganizationNational 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 SubjectGeosciences, Multidisciplinary
WOS IDWOS:000534526500004
PublisherCAMBRIDGE UNIV PRESS
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Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/14819
Collection古环境研究室
Corresponding AuthorLiu, Xiaodong
Affiliation1.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
Recommended Citation
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.
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