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@ARTICLE{Vogel:51770,
      author       = {Vogel, B. and Feng, W. and Streibel, M. and Müller, R.},
      title        = {{T}he potential impact of {C}l{O}x radical complexes on
                      polar stratospheric ozone loss processes},
      journal      = {Atmospheric chemistry and physics},
      volume       = {6},
      issn         = {1680-7316},
      address      = {Katlenburg-Lindau},
      publisher    = {EGU},
      reportid     = {PreJuSER-51770},
      pages        = {3099 - 3114},
      year         = {2006},
      note         = {Record converted from VDB: 12.11.2012},
      abstract     = {The importance of radical-molecule complexes for
                      atmospheric chemistry has been discussed in recent years. In
                      particular, the existence of a ClO center dot O-2 and ClOx
                      water radical complexes like ClO center dot H2O, OClO center
                      dot H2O, OClO center dot(H2O)(2), and ClOO center dot H2O
                      could play a role in enhancing the ClO dimer (Cl2O2)
                      formation and therefore may constitute an important
                      intermediate in polar stratospheric ozone loss cycles. Model
                      simulations performed with the Chemical Lagrangian Model of
                      the Stratosphere (CLaMS) will be presented to study the role
                      of radical complexes on polar stratospheric ozone loss
                      processes. The model simulations are performed for the
                      Arctic winter 2002/2003 at a level of 500 K potential
                      temperature and the results are compared to observed ozone
                      loss rates determined by the Match technique. Moreover,
                      recently reported values for the equilibrium constant of the
                      ClO dimer formation are used to restrict the number of
                      possible model results caused by large uncertainties about
                      radical complex chemistry. Our model simulations show that
                      the potential impact of ClO center dot O-2 on polar ozone
                      loss processes is small (dO(3)/ dt << 0.5 ppb/sunlight h)
                      provided that the ClO center dot O-2 complex is only weakly
                      stable. Assuming that the binding energies of the ClOx water
                      complexes are much higher than theoretically predicted an
                      enhancement of the ozone loss rate by up to approximate to
                      0.5 ppb/sunlight h is simulated. Because it is unlikely that
                      the ClOx water complexes are much more stable than predicted
                      we conclude that these complexes have no impact on polar
                      stratospheric ozone loss processes. Although large
                      uncertainties about radical complex chemistry exist, our
                      findings show that the potential impact of ClOx radical
                      molecule complexes on polar stratospheric ozone loss
                      processes is very small considering pure gas-phase
                      chemistry. However the existence of ClOx radical-molecule
                      complexes could possibly explain discrepancies for the
                      equilibrium constant of the ClO dimer formation found
                      between recent laboratory and stratospheric measurements.},
      keywords     = {J (WoSType)},
      cin          = {ICG-I},
      ddc          = {550},
      cid          = {I:(DE-Juel1)VDB47},
      pnm          = {Atmosphäre und Klima},
      pid          = {G:(DE-Juel1)FUEK406},
      shelfmark    = {Meteorology $\&$ Atmospheric Sciences},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000239271100001},
      url          = {https://juser.fz-juelich.de/record/51770},
}