Numerical Simulation of the Direct Radiative Effects of Dust Aerosol on the East Asian Winter Monsoon | |
Liu, Xiaodong1,2; Sun, Hui1 | |
刊名 | ADVANCES IN METEOROLOGY |
2015 | |
卷号 | 2015期号:142617 |
ISSN号 | 1687-9309 |
DOI | 10.1155/2015/142617 |
文献子类 | Article |
英文摘要 | Variations of the East Asian winter monsoon (EAWM) induced by dust aerosol are studied by using a regional climate model (RegCM4/Dust). Dust coupled and uncoupled experiments are carried out for the past decade (2000-2009). The coupled RegCM4 captures three centers of dust mixing ratio (DMR) located in the Taklamakan Desert, western Inner Mongolia, and northern Xinjiang, respectively, with maximum values greater than 500 mu g kg(-1) in winter. The surface total radiation change induced by dust is negative, and its central value of -8 W m(-2) results in surface temperature cooling by 1.5 degrees C in winter. Dust induced radiation change at the top of the atmosphere (TOA) is also negative in Northern China, except over the Tibetan Plateau (TP), and up to -5 W m(-2) in Central China. Dust cooling effects increase the sea level pressure (SLP) gradient between land and ocean, the cold surge frequency, and the East Asian jet stream (EAJ) intensity and then enhance the EAWM. The dry and cold wind pervade most areas of East Asia, suppressing large-scale precipitation and eventually leading to a rainfall decrease of about 10-30% in Northern China and the middle Yangtze River Valley. |
WOS关键词 | Regional Climate Model ; Summer Monsoon ; Interannual Variability ; Optical-properties ; Tibetan Plateau ; Source Areas ; Emission ; Impact ; Desertification ; Predictability |
WOS研究方向 | Meteorology & Atmospheric Sciences |
语种 | 英语 |
出版者 | HINDAWI PUBLISHING CORPORATION |
WOS记录号 | WOS:000356707400001 |
内容类型 | 期刊论文 |
源URL | [http://ir.ieecas.cn/handle/361006/9297] |
专题 | 地球环境研究所_古环境研究室 |
通讯作者 | Sun, Hui |
作者单位 | 1.Chinese Acad Sci, Inst Earth Environm, SKLLQG, Xian 710061, Peoples R China 2.Chinese Acad Sci, Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China |
推荐引用方式 GB/T 7714 | Liu, Xiaodong,Sun, Hui. Numerical Simulation of the Direct Radiative Effects of Dust Aerosol on the East Asian Winter Monsoon[J]. ADVANCES IN METEOROLOGY,2015,2015(142617). |
APA | Liu, Xiaodong,&Sun, Hui.(2015).Numerical Simulation of the Direct Radiative Effects of Dust Aerosol on the East Asian Winter Monsoon.ADVANCES IN METEOROLOGY,2015(142617). |
MLA | Liu, Xiaodong,et al."Numerical Simulation of the Direct Radiative Effects of Dust Aerosol on the East Asian Winter Monsoon".ADVANCES IN METEOROLOGY 2015.142617(2015). |
个性服务 |
查看访问统计 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论