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@ARTICLE{Riipinen:20030,
      author       = {Riipinen, I. and Pierce, J.R. and Yli-Juuti, T. and
                      Nieminen, T. and Häkkinen, S. and Ehn, M. and Junninen, H.
                      and Lehtipalo, K. and Petäjä, T. and Slowik, J. and Chang,
                      R. and Shantz, N.C. and Abbatt, J. and Leaitch, W.R. and
                      Kerminen, V.-M. and Worsnop, D.R. and Pandis, S.N. and
                      Donahue, N.M. and Kulmala, M.},
      title        = {{O}rganic condensation: a vital link connecting aerosol
                      formation to cloud condensation nuclei ({CCN})
                      concentrations},
      journal      = {Atmospheric chemistry and physics},
      volume       = {11},
      issn         = {1680-7316},
      address      = {Katlenburg-Lindau},
      publisher    = {EGU},
      reportid     = {PreJuSER-20030},
      pages        = {3865 - 3878},
      year         = {2011},
      note         = {Henry and Camille Dreyfus foundation, Maj and Tor Nessling
                      foundation, Academy of Finland Centre of Excellence program
                      (project no. 1118615) and the European Commission 7th
                      framework programme EUCAARI (contract no. 036833-2) are
                      acknowledged. The Egbert measurements were supported by
                      Environment Canada and the Canadian Foundation for Climate
                      and Atmospheric Sciences, through the CAFC network.},
      abstract     = {Atmospheric aerosol particles influence global climate as
                      well as impair air quality through their effects on
                      atmospheric visibility and human health. Ultrafine (< 100
                      nm) particles often dominate aerosol numbers, and nucleation
                      of atmospheric vapors is an important source of these
                      particles. To have climatic relevance, however, the freshly
                      nucleated particles need to grow in size. We combine
                      observations from two continental sites (Egbert, Canada and
                      Hyytiala, Finland) to show that condensation of organic
                      vapors is a crucial factor governing the lifetimes and
                      climatic importance of the smallest atmospheric particles.
                      We model the observed ultrafine aerosol growth with a
                      simplified scheme approximating the condensing species as a
                      mixture of effectively non-volatile and semi-volatile
                      species, demonstrate that state-of-the-art organic
                      gas-particle partitioning models fail to reproduce the
                      observations, and propose a modeling approach that is
                      consistent with the measurements. We find that roughly half
                      of the mass of the condensing mass needs to be distributed
                      proportional to the aerosol surface area (thus implying that
                      the condensation is governed by gas-phase concentration
                      rather than the equilibrium vapour pressure) to explain the
                      observed aerosol growth. We demonstrate the large
                      sensitivity of predicted number concentrations of cloud
                      condensation nuclei (CCN) to these interactions between
                      organic vapors and the smallest atmospheric nanoparticles
                      highlighting the need for representing this process in
                      global climate models.},
      keywords     = {J (WoSType)},
      cin          = {IEK-8},
      ddc          = {550},
      cid          = {I:(DE-Juel1)IEK-8-20101013},
      pnm          = {Atmosphäre und Klima},
      pid          = {G:(DE-Juel1)FUEK491},
      shelfmark    = {Meteorology $\&$ Atmospheric Sciences},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000290014300021},
      doi          = {10.5194/acp-11-3865-2011},
      url          = {https://juser.fz-juelich.de/record/20030},
}