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@ARTICLE{Kulmala:42735,
      author       = {Kulmala, M. and Boy, M. and Suni, T. and Gaman, A. and
                      Raivonen, M. and Aaltonen, V. and Adler, H. and Anttila, T.
                      and Fiedler, V. and Grönholm, T. and Hellén, H. and
                      Herrmann, E. and Jalonen, R. and Jussila, M. and Komppula,
                      M. and Kosmale, M. and Plauskaite, K. and Reis, R. and
                      Savola, N. and Soini, P. and Virtanen, S. and Aalto, P. and
                      Dal Maso, M. and Hakola, H. and Keronen, P. and Vehkamäki,
                      H. and Rannik, Ü. and Lehtinen, K. E. J. and Hari, P.},
      title        = {{A}erosols in {B}oreal {F}orest: {W}intertime relations
                      between formations events and bio-geo-chemical activity},
      journal      = {Boreal environment research},
      volume       = {9},
      issn         = {1239-6095},
      address      = {Helsinki},
      publisher    = {Finnish Zoological and Botanical Publishing Board},
      reportid     = {PreJuSER-42735},
      pages        = {63 - 74},
      year         = {2004},
      note         = {Record converted from VDB: 12.11.2012},
      abstract     = {We studied wintertime aerosol formation and subsequent
                      particle growth events that have been frequently observed in
                      ambient air at a boreal forest site (SMEAR II station) in
                      southern Finland. Aerosol size distributions, gas
                      concentrations, biological activity and meteorological
                      parameters have been measured at the site continuously since
                      1996. An important observation, based on flux measurements,
                      was that all particle formation events were connected with
                      either increased water evapo-transpiration or carbon dioxide
                      uptake by the forest. However, increased H2O or CO2 fluxes
                      did also occur on days without aerosol formation events, but
                      these occasions were connected to cloudy or polluted days
                      with high pre-existing aerosol concentrations. Thus, our
                      overall conclusion is that in order for an aerosol formation
                      event to occur, some ecological or bio-geo-chemical activity
                      is needed. During wintertime, this activity seems to be
                      mostly related to snow-atmosphere interactions.},
      keywords     = {J (WoSType)},
      cin          = {ICG-II},
      ddc          = {333.7},
      cid          = {I:(DE-Juel1)VDB48},
      pnm          = {Chemie und Dynamik der Geo-Biosphäre},
      pid          = {G:(DE-Juel1)FUEK257},
      shelfmark    = {Environmental Sciences},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000221373400006},
      url          = {https://juser.fz-juelich.de/record/42735},
}