globalchange  > 气候减缓与适应
DOI: 10.1038/ngeo1800
论文题名:
Warming-induced increase in aerosol number concentration likely to moderate climate change
作者: Paasonen P.; Asmi A.; Petäjä T.; Kajos M.K.; Äijälä M.; Junninen H.; Holst T.; Abbatt J.P.D.; Arneth A.; Birmili W.; Van Der Gon H.D.; Hamed A.; Hoffer A.; Laakso L.; Laaksonen A.; Richard Leaitch W.; Plass-Dülmer C.; Pryor S.C.; Räisänen P.; Swietlicki E.; Wiedensohler A.; Worsnop D.R.; Kerminen V.-M.; Kulmala M.
刊名: Nature Geoscience
ISSN: 17520894
出版年: 2013
卷: 6, 期:6
起始页码: 438
结束页码: 442
语种: 英语
Scopus关键词: aerosol ; air quality ; atmosphere-biosphere interaction ; black carbon ; climate change ; climate effect ; cloud condensation nucleus ; concentration (composition) ; emission control ; greenhouse gas ; particle size ; radiative forcing ; Europe
英文摘要: Atmospheric aerosol particles influence the climate system directly by scattering and absorbing solar radiation, and indirectly by acting as cloud condensation nuclei. Apart from black carbon aerosol, aerosols cause a negative radiative forcing at the top of the atmosphere and substantially mitigate the warming caused by greenhouse gases. In the future, tightening of controls on anthropogenic aerosol and precursor vapour emissions to achieve higher air quality may weaken this beneficial effect. Natural aerosols, too, might affect future warming. Here we analyse long-term observations of concentrations and compositions of aerosol particles and their biogenic precursor vapours in continental mid- and high-latitude environments. We use measurements of particle number size distribution together with boundary layer heights derived from reanalysis data to show that the boundary layer burden of cloud condensation nuclei increases exponentially with temperature. Our results confirm a negative feedback mechanism between the continental biosphere, aerosols and climate: aerosol cooling effects are strengthened by rising biogenic organic vapour emissions in response to warming, which in turn enhance condensation on particles and their growth to the size of cloud condensation nuclei. This natural growth mechanism produces roughly 50% of particles at the size of cloud condensation nuclei across Europe. We conclude that biosphere-atmosphere interactions are crucial for aerosol climate effects and can significantly influence the effects of anthropogenic aerosol emission controls, both on climate and air quality. © 2013 Macmillan Publishers Limited. All rights reserved.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/106772
Appears in Collections:气候减缓与适应
科学计划与规划

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作者单位: Department of Physics, University of Helsinki, FI-00014, Finland; International Institute for Applied Systems Analysis, A-2361 Laxenburg, Austria; Centre for Geo Biosphere Science, Lund University, S-22362 Lund, Sweden; Department of Chemistry, University of Toronto, Ontario, M5S 3H6, Canada; Karlsruhe Institute of Technology, Institute of Meteorology and Climate Research/Atmospheric Environmental Research, 82467 Garmisch-Partenkirchen, Germany; Leibniz Institute for Tropospheric Research, 04318 Leipzig, Germany; TNO Built Environment and Geosciences, 3584 CB Utrecht, Netherlands; Department of Applied Physics, University of Eastern Finland, 70210 Kuopio, Finland; MTA-PE Air Chemistry Research Group, 8200 Veszprém, Hungary; Finnish Meteorological Institute (FMI), FI-00101 Helsinki, Finland; School of Physical and Chemical Sciences, North-West University, Potchefstroom 2520, South Africa; Science and Technology Branch, Environment Canada, Toronto, ON M3H 5T4, Canada; Deutscher Wetterdienst, Meteorologisches Observatorium Hohenpeissenberg, 82383 Hohenpeissenberg, Germany; Department of Geological Sciences, Indiana University, Bloomington, IN 47405, United States; Division of Nuclear Physics, Lund University, S-221 00 Lund, Sweden; Aerodyne Research, Inc., Billerica, MA 01821-3976, United States

Recommended Citation:
Paasonen P.,Asmi A.,Petäjä T.,et al. Warming-induced increase in aerosol number concentration likely to moderate climate change[J]. Nature Geoscience,2013-01-01,6(6)
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