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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
Source PublicationSciences in Cold and Arid Regions
Volume4Issue:4Pages:0342-0350
Subtype期刊论文
AbstractThree 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.
Keywordaerosol Beijing area clouds and precipitation indirect effect numerical simulation
DOI10.3724/SP.J.1226.2012.00342
Indexed BySCI
Language英语
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/10922
Collection古环境研究室
Corresponding AuthorLiu,XD(Liu,Xiaodong)[1]
Affiliation1.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
Recommended Citation
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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