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Aerosol particle formation events and analysis of high growth rates observed above a subarctic wetland-forest mosaic

Svenningsson, Birgitta LU ; Arneth, Almut LU ; Hayward, Sean LU ; Holst, Thomas LU ; Massling, Andreas; Swietlicki, Erik LU ; Hirsikko, Anne; Junninen, Heikki; Riipinen, Ilona and Vana, Marko, et al. (2008) In Tellus. Series B: Chemical and Physical Meteorology 60. p.353-364
Abstract
An analysis of particle formation (PF) events over a subarctic mire in northern Sweden was performed, based on number size distributions of atmospheric aerosol particles (10-500 nm in diameter) and ions (0.4-40 nm in Tammet diameter). We present classification statistics for PF events from measurements covering the period July 2005- September 2006, with a break over the winter period. The PF event frequency peaked during the summer months, in contrast to other Scandinavian sites where the frequency is highest during spring and autumn. Our analysis concentrates on calculated growth rates and estimates of concentrations and production rates of condensing vapour, deduced from the growth rates and condensational sink calculations, using AIS... (More)
An analysis of particle formation (PF) events over a subarctic mire in northern Sweden was performed, based on number size distributions of atmospheric aerosol particles (10-500 nm in diameter) and ions (0.4-40 nm in Tammet diameter). We present classification statistics for PF events from measurements covering the period July 2005- September 2006, with a break over the winter period. The PF event frequency peaked during the summer months, in contrast to other Scandinavian sites where the frequency is highest during spring and autumn. Our analysis concentrates on calculated growth rates and estimates of concentrations and production rates of condensing vapour, deduced from the growth rates and condensational sink calculations, using AIS and SMPS data. Particle formation events with high growth rates (up to 50 nm/h) occurred repeatedly. In these cases, the newly formed nucleation mode particles were often only present for periods of a few hours. On several occasions repeated particle formation events were observed within one day, with differences in onset time of a few hour. These high growth rates were only observed when the condensation sink was higher than 0.001 s-1. (Less)
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Contribution to specialist publication or newspaper
publication status
published
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categories
Popular Science
in
Tellus. Series B: Chemical and Physical Meteorology
volume
60
pages
353 - 364
publisher
Taylor & Francis
external identifiers
  • wos:000256845400006
  • scopus:45449092145
ISSN
0280-6509
DOI
10.1111/j.1600-0889.2008.00351.x
language
English
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yes
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0e92f9bd-7b04-4985-9371-5bc86695762b (old id 694382)
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2007-12-07 17:27:31
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2017-05-28 04:36:08
@misc{0e92f9bd-7b04-4985-9371-5bc86695762b,
  abstract     = {An analysis of particle formation (PF) events over a subarctic mire in northern Sweden was performed, based on number size distributions of atmospheric aerosol particles (10-500 nm in diameter) and ions (0.4-40 nm in Tammet diameter). We present classification statistics for PF events from measurements covering the period July 2005- September 2006, with a break over the winter period. The PF event frequency peaked during the summer months, in contrast to other Scandinavian sites where the frequency is highest during spring and autumn. Our analysis concentrates on calculated growth rates and estimates of concentrations and production rates of condensing vapour, deduced from the growth rates and condensational sink calculations, using AIS and SMPS data. Particle formation events with high growth rates (up to 50 nm/h) occurred repeatedly. In these cases, the newly formed nucleation mode particles were often only present for periods of a few hours. On several occasions repeated particle formation events were observed within one day, with differences in onset time of a few hour. These high growth rates were only observed when the condensation sink was higher than 0.001 s-1.},
  author       = {Svenningsson, Birgitta and Arneth, Almut and Hayward, Sean and Holst, Thomas and Massling, Andreas and Swietlicki, Erik and Hirsikko, Anne and Junninen, Heikki and Riipinen, Ilona and Vana, Marko and Dal Maso, Miikka and Hussein, Tareq and Kulmala, Markku},
  issn         = {0280-6509},
  language     = {eng},
  pages        = {353--364},
  publisher    = {Taylor & Francis},
  series       = {Tellus. Series B: Chemical and Physical Meteorology},
  title        = {Aerosol particle formation events and analysis of high growth rates observed above a subarctic wetland-forest mosaic},
  url          = {http://dx.doi.org/10.1111/j.1600-0889.2008.00351.x},
  volume       = {60},
  year         = {2008},
}