Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/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
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ISSN | 1352-2310 |
EISSN | 1873-2844 |
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 GB/T 7714 | 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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