Arid
DOI10.1016/j.atmosenv.2012.11.032
A study of dust radiative feedback on dust cycle and meteorology over East Asia by a coupled regional climate-chemistry-aerosol model
Han, Zhiwei1; Li, Jiawei1; Guo, Weidong2; Xiong, Zhe1; Zhang, Wu3
通讯作者Han, Zhiwei
来源期刊ATMOSPHERIC ENVIRONMENT
ISSN1352-2310
出版年2013
卷号68页码:54-63
英文摘要

An online coupled regional climate-chemistry-aerosol model was utilized to investigate the dust direct radiative feedbacks on dust deflation, transport and meteorological elements in March 2010, when a severe dust storm originated from the Gobi desert near the China-Mongolia border swept across most areas of East Asia during the period of 19-22 March. The predicted meteorology and aerosol concentration agree generally well with observations, and it clearly shows that the predictions of both dust concentration and meteorological elements with dust radiative feedback are closer to observation than that without feedback, suggesting the superiority of on-line coupled model in chemical and climate predictions. The direct radiative forcing by dust aerosol caused significant reductions in ground temperature and wind speed in dust deflation region, with maximums up to -7 degrees C and -4.0 m s(-1), respectively. The reduced wind speed and increased atmospheric stability resulted in smaller dust emission and weakened vertical diffusion, and consequently less dust aerosol in upper levels transported further downwind. While the shortwave radiative forcing dominated over longwave forcing in the daytime, leading to decreases of surface air temperature and wind speed, in the nighttime, the warming effect of longwave forcing dominated, causing increases of air temperature and wind speed up to 1 degrees C and 1 m s(-1), respectively, in the dust deflation region. The variation of meteorology during the dust storm period at a rural site (Yuzhong) downwind of the Gobi desert exhibited an evident decrease in surface air temperature due to the dust radiative forcing. In terms of monthly mean, the dust radiative forcing caused a surface cooling of -0.6 to -1.0 degrees C over wide areas from west China to northern parts of east China and the Korean peninsula, with maximums in the middle reaches of the Yellow River and portions of northeast China. Concurrently, precipitation decreased by 0.1-0.6 mm day(-1) in the middle reaches of the Yangtze River and large areas of north China, and alternating bands of increasing and decreasing precipitation (similar to 1 mm day(-1)) occurred in south China. (c) 2012 Elsevier Ltd. All rights reserved.


英文关键词Mineral dust Meteorological elements Radiative effects Cooling Warming Dust-climate interaction
类型Article
语种英语
国家Peoples R China
收录类别SCI-E
WOS记录号WOS:000315241100008
WOS关键词SAHARAN DUST ; PERIOD ; LAND ; SIMULATION ; US
WOS类目Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS研究方向Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
来源机构兰州大学 ; 中国科学院大气物理研究所 ; 南京大学
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/176002
作者单位1.Chinese Acad Sci, Inst Atmospher Phys, Key Lab Reg Climate Environm Temperate E Asia RCE, Beijing, Peoples R China;
2.Nanjing Univ, Sch Environm, Nanjing 210008, Jiangsu, Peoples R China;
3.Lanzhou Univ, Coll Atmospher Sci, Lanzhou 730000, Peoples R China
推荐引用方式
GB/T 7714
Han, Zhiwei,Li, Jiawei,Guo, Weidong,et al. A study of dust radiative feedback on dust cycle and meteorology over East Asia by a coupled regional climate-chemistry-aerosol model[J]. 兰州大学, 中国科学院大气物理研究所, 南京大学,2013,68:54-63.
APA Han, Zhiwei,Li, Jiawei,Guo, Weidong,Xiong, Zhe,&Zhang, Wu.(2013).A study of dust radiative feedback on dust cycle and meteorology over East Asia by a coupled regional climate-chemistry-aerosol model.ATMOSPHERIC ENVIRONMENT,68,54-63.
MLA Han, Zhiwei,et al."A study of dust radiative feedback on dust cycle and meteorology over East Asia by a coupled regional climate-chemistry-aerosol model".ATMOSPHERIC ENVIRONMENT 68(2013):54-63.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Han, Zhiwei]的文章
[Li, Jiawei]的文章
[Guo, Weidong]的文章
百度学术
百度学术中相似的文章
[Han, Zhiwei]的文章
[Li, Jiawei]的文章
[Guo, Weidong]的文章
必应学术
必应学术中相似的文章
[Han, Zhiwei]的文章
[Li, Jiawei]的文章
[Guo, Weidong]的文章
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。