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  • 标题:Physical and Chemical Characteristics of Aerosol Particles and cloud-droplet Activation during the Second Pallas Cloud Experiment (Second PaCE).
  • 本地全文:下载
  • 作者:Kivekäs N. ; Kerminen V.-M. ; Raatikainen T.
  • 期刊名称:Boreal Environment Research
  • 印刷版ISSN:1239-6095
  • 出版年度:2009
  • 卷号:14
  • 期号:04
  • 出版社:Finnish Limnological Society
  • 摘要:

    The Second Pallas
    Cloud Experiment (Second PaCE) was conducted at the Pallas-Sodankylä Global
    Atmosphere Watch (GAW) station in northern Finland from 16 September to 6
    October 2005. Measured parameters included aerosol number size distribution,
    aerosol chemical composition, aerosol hygroscopic growth factor, cloud droplet
    number size distribution and meteorological parameters. Air mass back
    trajectories were also calculated. The particulate volume and the inorganic
    fraction (IO) of particulate mass depended strongly on the air-mass history:
    central European air masses contain much more particulate matter and have higher
    IO than marine air masses. The hygroscopic growth factor of particles was
    positively correlated with the IO. Aerosol activation into cloud droplets was
    studied for accumulation mode particles ( d p > 100 nm). The
    activation of these particles did not show clear dependency on the number
    concentration of accumulation mode particles or on IO. These two parameters were
    positively correlated and their effects on the particle activation could not be
    separated.

  • 关键词:Chemical Characteristics;Aerosol Particles;Cloud Droplet Numbers;Meteorological Parameters;European
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