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DOI	10.1038/s41561-020-00661-5
	Biogenic particles formed in the Himalaya as an important source of free tropospheric aerosols
	Bianchi F.; Junninen H.; Bigi A.; Sinclair V.A.; Dada L.; Hoyle C.R.; Zha Q.; Yao L.; Ahonen L.R.; Bonasoni P.; Buenrostro Mazon S.; Hutterli M.; Laj P.; Lehtipalo K.; Kangasluoma J.; Kerminen V.-M.; Kontkanen J.; Marinoni A.; Mirme S.; Molteni U.; Petäjä T.; Riva M.; Rose C.; Sellegri K.; Yan C.; Worsnop D.R.; Kulmala M.; Baltensperger U.; Dommen J.
发表日期	2021
ISSN	17520894
起始页码	4
结束页码	9
卷号	14 期号:1
英文摘要	Aerosols of biogenic and anthropogenic origin affect the total radiative forcing of global climate. Poor knowledge of the pre-industrial aerosol concentration and composition, in particular of particles formed directly in the atmosphere from gaseous precursors, constitutes a large uncertainty in the anthropogenic radiative forcing. Investigations of new particle formation at pre-industrial-like conditions can contribute to the reduction of this uncertainty. Here we present observations taken at the remote Nepal Climate Observatory Pyramid station at 5,079 m above sea level, a few kilometres from the summit of Everest. We show that up-valley winds funnel gaseous aerosol precursors to higher altitudes. During this transport, these are oxidized into compounds of very low volatility, which rapidly form a large number of aerosol particles. These are then transported into the free troposphere, which suggests that the whole Himalayan region may act as an ‘aerosol factory’ and contribute substantially to the free tropospheric aerosol population. Aerosol production in this region occurs mainly via organic precursors of biogenic origin with little evidence of the involvement of anthropogenic pollutants. This process is therefore likely to be essentially unchanged since the pre-industrial period, and may have been one of the major sources that contributes to the upper tropospheric aerosol population during that time. © 2020, The Author(s), under exclusive licence to Springer Nature Limited.
英文关键词	aerosol; anthropogenic source; concentration (composition); global climate; human activity; radiative forcing; troposphere; Himalayas; Nepal
语种	英语
来源期刊	Nature Geoscience
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/206862
作者单位	Institute for Atmospheric and Earth System Research/Physics, University of Helsinki, Helsinki, Finland; Department of Engineering ‘Enzo Ferrari’, University of Modena and Reggio Emilia, Modena, Italy; Laboratory of Atmospheric Chemistry, Paul Scherrer Institute, Villigen, Switzerland; CNR-ISAC, National Research Council of Italy—Institute of Atmospheric Sciences and Climate, Bologna, Italy; TOFWERK AG, Thun, Switzerland; Université Grenoble Alpes, CNRS, IRD, Grenoble INP, Institute for Geosciences and Environmental Research (IGE), Grenoble, France; Finnish Meteorological Institute, Helsinki, Finland; Institute of Physics, University of Tartu, Tartu, Estonia; Laboratoire de Météorologie Physique (LaMP), CNRS UMR 6016, Université Blaise Pascal, Aubière, France; Aerodyne Research, Billerica, MA, United States; Aerosol and Haze Laboratory, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, China; Université Claude Bernard Lyon 1, CNR...
推荐引用方式 GB/T 7714	Bianchi F.,Junninen H.,Bigi A.,et al. Biogenic particles formed in the Himalaya as an important source of free tropospheric aerosols[J],2021,14(1).
APA	Bianchi F..,Junninen H..,Bigi A..,Sinclair V.A..,Dada L..,...&Dommen J..(2021).Biogenic particles formed in the Himalaya as an important source of free tropospheric aerosols.Nature Geoscience,14(1).
MLA	Bianchi F.,et al."Biogenic particles formed in the Himalaya as an important source of free tropospheric aerosols".Nature Geoscience 14.1(2021).