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@ARTICLE{Karnezi:857251,
      author       = {Karnezi, Eleni and Murphy, Benjamin N. and Poulain, Laurent
                      and Herrmann, Hartmut and Wiedensohler, Alfred and Rubach,
                      Florian and Kiendler-Scharr, Astrid and Mentel, Thomas F.
                      and Pandis, Spyros N.},
      title        = {{S}imulation of atmospheric organic aerosol using its
                      volatility–oxygen-content distribution during the
                      {PEGASOS} 2012 campaign},
      journal      = {Atmospheric chemistry and physics},
      volume       = {18},
      number       = {14},
      issn         = {1680-7324},
      address      = {Katlenburg-Lindau},
      publisher    = {EGU},
      reportid     = {FZJ-2018-06480},
      pages        = {10759 - 10772},
      year         = {2018},
      abstract     = {A lot of effort has been made to understand and constrain
                      the atmospheric aging of the organic aerosol (OA). Different
                      parameterizations of the organic aerosol formation and
                      evolution in the two-dimensional volatility basis set
                      (2D-VBS) framework are evaluated using ground and airborne
                      measurements collected in the 2012 Pan-European Gas
                      AeroSOls-climate interaction Study (PEGASOS) field campaign
                      in the Po Valley (Italy). A number of chemical aging schemes
                      are examined, taking into account various functionalization
                      and fragmentation pathways for biogenic and anthropogenic OA
                      components. Model predictions and measurements, both at the
                      ground and aloft, indicate a relatively oxidized OA with
                      little average diurnal variation. Total OA concentration and
                      O : C ratios are reproduced within experimental error by
                      a number of chemical aging schemes. Anthropogenic secondary
                      OA (SOA) is predicted to contribute $15–25\%$ of the total
                      OA, while SOA from intermediate volatility compound
                      oxidation contributes another $20–35\%.$ Biogenic SOA
                      (bSOA) contributions varied from 15 to $45\%$ depending on
                      the modeling scheme. Primary OA contributed around $5\%$ for
                      all schemes and was comparable to the hydrocarbon-like OA
                      (HOA) concentrations derived from the positive matrix
                      factorization of the aerosol mass spectrometer (PMF-AMS)
                      ground measurements. The average OA and O : C diurnal
                      variation and their vertical profiles showed a surprisingly
                      modest sensitivity to the assumed vaporization enthalpy for
                      all aging schemes. This can be explained by the interplay
                      between the partitioning of the semi-volatile compounds and
                      their gas-phase chemical aging reactions.},
      cin          = {IEK-8},
      ddc          = {550},
      cid          = {I:(DE-Juel1)IEK-8-20101013},
      pnm          = {243 - Tropospheric trace substances and their
                      transformation processes (POF3-243)},
      pid          = {G:(DE-HGF)POF3-243},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000440012400002},
      doi          = {10.5194/acp-18-10759-2018},
      url          = {https://juser.fz-juelich.de/record/857251},
}