气候变化领域集成服务门户(CCPortal): Direct observations of atmospheric aerosol nucleation

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DOI	10.1126/science.1227385
	Direct observations of atmospheric aerosol nucleation
	Kulmala M.; Kontkanen J.; Junninen H.; Lehtipalo K.; Manninen H.E.; Nieminen T.; Petäjä T.; Sipilä M.; Schobesberger S.; Rantala P.; Franchin A.; Jokinen T.; Järvinen E.; Äijälä M.; Kangasluoma J.; Hakala J.; Aalto P.P.; Paasonen P.; Mikkilä J.; Vanhanen J.; Aalto J.; Hakola H.; Makkonen U.; Ruuskanen T.; Mauldin III R.L.; Duplissy J.; Vehkamäki H.; Bäck J.; Kortelainen A.; Riipinen I.; Kurtén T.; Johnston M.V.; Smith J.N.; Ehn M.; Mentel T.F.; Lehtinen K.E.J.; Laaksonen A.; Kerminen V.-M.; Worsnop D.R.
发表日期	2013
ISSN	0036-8075
起始页码	943
结束页码	946
卷号	339 期号:6122
英文摘要	Atmospheric nucleation is the dominant source of aerosol particles in the global atmosphere and an important player in aerosol climatic effects. The key steps of this process occur in the sub-2-nanometer (nm) size range, in which direct size-segregated observations have not been possible until very recently. Here, we present detailed observations of atmospheric nanoparticles and clusters down to 1-nm mobility diameter. We identified three separate size regimes below 2-nm diameter that build up a physically, chemically, and dynamically consistent framework on atmospheric nucleation - more specifically, aerosol formation via neutral pathways. Our findings emphasize the important role of organic compounds in atmospheric aerosol formation, subsequent aerosol growth, radiative forcing and associated feedbacks between biogenic emissions, clouds, and climate.
英文关键词	nanoparticle; organic compound; sulfuric acid; aerosol; biogenic emission; climate effect; cloud; mobility; nucleation; particle size; radiative forcing; aerosol; air pollution; article; atmospheric aerosol nucleation; climate change; cloud; conceptual framework; controlled study; feedback system; particle size; physical chemistry; priority journal
语种	英语
来源期刊	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/244417
作者单位	Department of Physics, University of Helsinki, Finland; Airmodus Oy, Helsinki, Finland; SMEAR Station II, Hyytiälä, Finland; Finnish Meteorological Institute, Finland; University of Colorado at Boulder, Boulder, CO, United States; Department of Forest Sciences, University of Helsinki, Finland; University of Eastern Finland, Kuopio, Finland; University of Stockholm, Stockholm, Sweden; Department of Chemistry, University of Helsinki, Finland; University of Delaware, Newark, DE, United States; National Center for Atmospheric Research, Boulder, CO, United States; Forschungszentrum Juelich, IEK-8, 52425 Juelich, Germany; Aerodyne Research, Billerica, MA, United States; Helsinki Institute of Physics, Helsinki, Finland
推荐引用方式 GB/T 7714	Kulmala M.,Kontkanen J.,Junninen H.,et al. Direct observations of atmospheric aerosol nucleation[J],2013,339(6122).
APA	Kulmala M..,Kontkanen J..,Junninen H..,Lehtipalo K..,Manninen H.E..,...&Worsnop D.R..(2013).Direct observations of atmospheric aerosol nucleation.Science,339(6122).
MLA	Kulmala M.,et al."Direct observations of atmospheric aerosol nucleation".Science 339.6122(2013).