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	Meteorological dependence of particle number concentrations in an urban area of complex terrain, Northwestern China
	Zhao, Suping1,2; Yu, Ye1; Yin, Daiying3,4; He, Jianjun5
刊名	ATMOSPHERIC RESEARCH
	2015-10-01
卷号	164页码:304-317
关键词	Meteorological conditions Atmospheric particle Concentration Size distribution
ISSN号	0169-8095
DOI	10.1016/j.atmosres.2015.06.001
通讯作者	Yu, Ye(yyu@lzb.accn)
英文摘要	To understand the effects of meteorological conditions on particle number concentrations and their size distributions in a typical valley city, measurements for particles in the size range 10 to 10,000 nm were conducted using TSI particle sizer (SMPS-3936 and APS-3321) from 1 September 2012 to 31 August 2013 in urban Lanzhou. The particle number concentrations in large nucleation (10-25 nm), Aitken (25-100 nm) and accumulation modes (100-1000 nm) depended on different meteorological parameters in four seasons. The relationships between number concentrations of large nucleation mode particles and meteorological conditions were unobvious for non-NPF (New Particle Formation) event. The number concentrations of particles in Aitken and accumulation modes mainly relied on wind speed in spring and winter, while those depended not only on wind speed but also on temperature in summer and fall. Additionally, particle number concentrations in accumulation mode increased as increase of RH in summer due to hygroscopic growth of smaller particles. There was a burst of particle number concentration in the large nucleation mode followed by subsequent particle growth for NPF events, and the events were discerned easily when temperature and wind speed were higher than 20 degrees C and 2.0 m s(-1) in spring and summer. The mode diameters of particle number size distributions significantly decreased as temperature increased in summer and fall, while those decreased from similar to 70 nm to similar to 20 nm with increases of wind speed in four seasons in urban Lanzhou. (C) 2015 Elsevier B.V. All rights reserved.
收录类别	SCI
WOS关键词	CONTINENTAL BOUNDARY-LAYER ; AEROSOL-SIZE DISTRIBUTIONS ; MEDITERRANEAN COASTAL SITE ; NUCLEATION EVENTS ; ATMOSPHERIC AEROSOLS ; STATISTICAL-ANALYSIS ; RELATIVE-HUMIDITY ; BACK TRAJECTORIES ; BACKGROUND AREA ; AIR-QUALITY
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
语种	英语
出版者	ELSEVIER SCIENCE INC
WOS记录号	WOS:000358095800026
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2557083
专题	寒区旱区环境与工程研究所
通讯作者	Yu, Ye
作者单位	1.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Key Lab Land Surface Proc & Climate Change Cold &, Lanzhou 730000, Gansu, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Key Lab Desert & Desertificat, Lanzhou 730000, Gansu, Peoples R China 4.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Dunhuang Gobi & Desert Ecol & Environm Res Stn, Lanzhou 730000, Gansu, Peoples R China 5.Nankai Univ, Coll Environm Sci & Engn, Tianjin 300071, Peoples R China
推荐引用方式 GB/T 7714	Zhao, Suping,Yu, Ye,Yin, Daiying,et al. Meteorological dependence of particle number concentrations in an urban area of complex terrain, Northwestern China[J]. ATMOSPHERIC RESEARCH,2015,164:304-317.
APA	Zhao, Suping,Yu, Ye,Yin, Daiying,&He, Jianjun.(2015).Meteorological dependence of particle number concentrations in an urban area of complex terrain, Northwestern China.ATMOSPHERIC RESEARCH,164,304-317.
MLA	Zhao, Suping,et al."Meteorological dependence of particle number concentrations in an urban area of complex terrain, Northwestern China".ATMOSPHERIC RESEARCH 164(2015):304-317.

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