Arid
DOI10.1016/j.atmosenv.2010.10.020
Influence of Arctic Oscillation on dust activity over northeast Asia
Mao, Rui; Ho, Chang-Hoi1; Shao, Yaping2; Gong, Dao-Yi3; Kim, Jhoon4
通讯作者Ho, Chang-Hoi
来源期刊ATMOSPHERIC ENVIRONMENT
ISSN1352-2310
EISSN1873-2844
出版年2011
卷号45期号:2页码:326-337
英文摘要

The northeast Asian dust process during the spring seasons in the years 1982-2006 was simulated by the Integrated Wind Erosion Modeling System (IWEMS). The influence of Arctic Oscillation (AO) on dust activities was investigated by analyzing surface observations and model simulations. There is a significant relationship between AO and dust activity; a positive AO phase is associated with decreased (increased) dust storm frequency in Mongolia (Taklimakan Desert) and enhanced anticyclonic (southeastward) dust transport over northwestern China (North China). The AO-dust relation is mainly due to changes in the westerly jet and geopotential height in the middle troposphere; a positive AO phase induces a northward shift of the polar jet, an intensified westerly jet over northern Tibetan Plateau, and a positive geopotential height anomaly over Mongolia. The northern shift of the polar jet reduces the frequency of intense cyclones in Mongolia, thereby causing a decrease in the dust storm frequency. The intensified westerly jet stream over the northern Tibetan Plateau increases the dust storm frequency in the Taklimakan Desert. The positive geopotential height anomaly over Mongolia initiates an anticyclonic dust transport anomaly in the middle troposphere over northwestern China. It also induces a southeastward dust transport anomaly over North China. The reverse situations are true for a negative AO phase. (C) 2010 Elsevier Ltd. All rights reserved.


英文关键词Arctic oscillation Asian dust Northeast Asia Integrated Wind Erosion Modeling System (IWEMS)
类型Article
语种英语
国家South Korea ; Germany ; Peoples R China
收录类别SCI-E
WOS记录号WOS:000286954800007
WOS关键词TRANS-PACIFIC TRANSPORT ; SIMULATED CLIMATOLOGY ; CYCLONE ACTIVITY ; TIBETAN PLATEAU ; STORMS ; CHINA ; PREDICTION ; AEROSOLS ; REGIONS ; MONSOON
WOS类目Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS研究方向Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
来源机构北京师范大学
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/167243
作者单位1.Seoul Natl Univ, Sch Earth & Environm Sci, Climate Phys Lab, Seoul 151747, South Korea;
2.Univ Cologne, Inst Geophys & Meteorol, D-5000 Cologne, Germany;
3.Beijing Normal Univ, State Key Lab Earth Surface Proc & Resource Ecol, Beijing 100875, Peoples R China;
4.Yonsei Univ, Dept Atmospher Sci, Seoul 120749, South Korea
推荐引用方式
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Mao, Rui,Ho, Chang-Hoi,Shao, Yaping,et al. Influence of Arctic Oscillation on dust activity over northeast Asia[J]. 北京师范大学,2011,45(2):326-337.
APA Mao, Rui,Ho, Chang-Hoi,Shao, Yaping,Gong, Dao-Yi,&Kim, Jhoon.(2011).Influence of Arctic Oscillation on dust activity over northeast Asia.ATMOSPHERIC ENVIRONMENT,45(2),326-337.
MLA Mao, Rui,et al."Influence of Arctic Oscillation on dust activity over northeast Asia".ATMOSPHERIC ENVIRONMENT 45.2(2011):326-337.
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