Numerical study of aerosol effect on three types of cloudsand precipitation in Beijing area

doi:10.3724/SP.J.1226.2012.00342

IEECAS OpenIR > 古环境研究室

	Numerical study of aerosol effect on three types of cloudsand precipitation in Beijing area
	Yue, ZG(Yue,Zhiguo)[1,2]; Liu,XD(Liu,Xiaodong)[1]; Liu,SY(Liu,Shuyan)[3]
	2012
发表期刊	Sciences in Cold and Arid Regions
卷号	4 期号:4 页码:0342-0350
文章类型	期刊论文
摘要	Three types of rainfall (storm, moderate and slight rainfall) in the Beijing area were simulated by the Weather Research and Forecast (WRF3.2) model coupled with Milbrandt-two-moment cloud microphysics scheme, to explore the effect of aerosols on clouds and precipitation under continental and maritime aerosol scenarios. Results indicate that an increase of aerosols has various effects on clouds and precipitation. (1) The amount of surface precipitation is obviously affected. With an increase of aerosol concentration, the 48-hr total precipitation of storm and moderate rainfall decreased by 23% and 16.6%, respectively, and the 24-hr total precipitation of slight rainfall decreased by 14.0%. (2) The distribution of surface precipitation is also clearly affected. The average precipitation for a rain storm increases in most parts of western Beijing and decreases by more than 20 mm in most parts of eastern Beijing with increasing aerosol concentration. The average precipitation of moderate rainfall decreases by 0.1–5 mm in most parts of the Beijing area. The effect of increased aerosol concentration is weak for slight rainfall distribution in the study area. (3) With an increase of aerosol concentration, a narrower width and lower precipitation peak value are found in the storm rainfall, and its duration is prolonged for the high aerosol concentration. An earlier precipitation termination of moderate rainfall is found with increasing aerosol concentration. (4) The upper-air hydrometeors vary with aerosol concentration. For storm and moderate rainfall, significantly higher cloud water concentration and lower rain water were found under the continental aerosol scenario.
关键词	aerosol Beijing area clouds and precipitation indirect effect numerical simulation
DOI	10.3724/SP.J.1226.2012.00342
收录类别	SCI
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/10922
专题	古环境研究室
通讯作者	Liu,XD(Liu,Xiaodong)[1]
作者单位	1.SKLLQG, Institute of Earth Environment, Chinese Academy of Sciences, Xi’an, Shaanxi 710075, China; 2.Weather Modification Office of Shaanxi Province, Xi’an, Shaanxi 710015, China; 3.Earth System Science and Interdisciplinary Center, University of Maryland, College Park, Maryland 20740, USA
推荐引用方式 GB/T 7714	Yue, ZG,Liu,XD,Liu,SY. Numerical study of aerosol effect on three types of cloudsand precipitation in Beijing area[J]. Sciences in Cold and Arid Regions,2012,4(4):0342-0350.
APA	Yue, ZG,Liu,XD,&Liu,SY.(2012).Numerical study of aerosol effect on three types of cloudsand precipitation in Beijing area.Sciences in Cold and Arid Regions,4(4),0342-0350.
MLA	Yue, ZG,et al."Numerical study of aerosol effect on three types of cloudsand precipitation in Beijing area".Sciences in Cold and Arid Regions 4.4(2012):0342-0350.

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