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Analysis of particle size distribution changes between three measurement sites in northern Scandinavia

Vaananen, R.; Kyro, E. -M.; Nieminen, T.; Kivekäs, Niku LU ; Junninen, H.; Virlikula, A.; Dal Maso, M.; Lihavainen, H.; Viisanen, Y. and Svenningsson, Birgitta LU , et al. (2013) In Atmospheric Chemistry and Physics 13(23). p.11887-11903
Abstract
We investigated atmospheric aerosol particle dynamics in a boreal forest zone in northern Scandinavia. We used aerosol number size distribution data measured with either a differential mobility particle sizer (DMPS) or scanning mobility particle sizer (SMPS) at three stations (Varrio, Pallas and Abisko), and combined these data with the HYSPLIT (Hybrid Single Particle Lagrangian Integrated Trajectory) air mass trajectory analysis. We compared three approaches analysis of new particle formation events, investigation of aerosol particle number size distributions during the air mass transport from the ocean to individual stations with different overland transport times, and analysis of changes in aerosol particle number size distributions... (More)
We investigated atmospheric aerosol particle dynamics in a boreal forest zone in northern Scandinavia. We used aerosol number size distribution data measured with either a differential mobility particle sizer (DMPS) or scanning mobility particle sizer (SMPS) at three stations (Varrio, Pallas and Abisko), and combined these data with the HYSPLIT (Hybrid Single Particle Lagrangian Integrated Trajectory) air mass trajectory analysis. We compared three approaches analysis of new particle formation events, investigation of aerosol particle number size distributions during the air mass transport from the ocean to individual stations with different overland transport times, and analysis of changes in aerosol particle number size distributions during the air mass transport from one measurement station to another. Aitken-mode particles were found to have apparent average growth rates of 0.6-0.7 nm h(-1) when the air masses traveled over land. Particle growth rates during the new particle formation (NPF) events were 3-6 times higher than the apparent particle growth during the summer period. When comparing aerosol dynamics for different overland transport times between the different stations, no major differences were found, except that in Abisko the NPF events were observed to take place in air masses with shorter overland times than at the other stations. We speculate that this is related to the meteorological differences along the paths of air masses caused by the land surface topology. When comparing air masses traveling in an east-to-west direction with those traveling in a west-to-east direction, clear differences in the aerosol dynamics were seen. Our results suggest that the condensation growth has an important role in aerosol dynamics even when NPF is not evident. (Less)
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Atmospheric Chemistry and Physics
volume
13
issue
23
pages
11887 - 11903
publisher
Copernicus Gesellschaft mbH
external identifiers
  • wos:000328616800018
  • scopus:84890012535
ISSN
1680-7324
DOI
10.5194/acp-13-11887-2013
language
English
LU publication?
yes
id
5e6ea7e8-5ea8-4a01-b8e0-ffb77551268b (old id 4272159)
date added to LUP
2014-02-11 14:13:35
date last changed
2019-08-14 01:13:15
@article{5e6ea7e8-5ea8-4a01-b8e0-ffb77551268b,
  abstract     = {We investigated atmospheric aerosol particle dynamics in a boreal forest zone in northern Scandinavia. We used aerosol number size distribution data measured with either a differential mobility particle sizer (DMPS) or scanning mobility particle sizer (SMPS) at three stations (Varrio, Pallas and Abisko), and combined these data with the HYSPLIT (Hybrid Single Particle Lagrangian Integrated Trajectory) air mass trajectory analysis. We compared three approaches analysis of new particle formation events, investigation of aerosol particle number size distributions during the air mass transport from the ocean to individual stations with different overland transport times, and analysis of changes in aerosol particle number size distributions during the air mass transport from one measurement station to another. Aitken-mode particles were found to have apparent average growth rates of 0.6-0.7 nm h(-1) when the air masses traveled over land. Particle growth rates during the new particle formation (NPF) events were 3-6 times higher than the apparent particle growth during the summer period. When comparing aerosol dynamics for different overland transport times between the different stations, no major differences were found, except that in Abisko the NPF events were observed to take place in air masses with shorter overland times than at the other stations. We speculate that this is related to the meteorological differences along the paths of air masses caused by the land surface topology. When comparing air masses traveling in an east-to-west direction with those traveling in a west-to-east direction, clear differences in the aerosol dynamics were seen. Our results suggest that the condensation growth has an important role in aerosol dynamics even when NPF is not evident.},
  author       = {Vaananen, R. and Kyro, E. -M. and Nieminen, T. and Kivekäs, Niku and Junninen, H. and Virlikula, A. and Dal Maso, M. and Lihavainen, H. and Viisanen, Y. and Svenningsson, Birgitta and Holst, Thomas and Arneth, A. and Aalto, P. P. and Kulmala, M. and Kerminen, V. -M.},
  issn         = {1680-7324},
  language     = {eng},
  number       = {23},
  pages        = {11887--11903},
  publisher    = {Copernicus Gesellschaft mbH},
  series       = {Atmospheric Chemistry and Physics},
  title        = {Analysis of particle size distribution changes between three measurement sites in northern Scandinavia},
  url          = {http://dx.doi.org/10.5194/acp-13-11887-2013},
  volume       = {13},
  year         = {2013},
}