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@ARTICLE{Mller:47478,
      author       = {Müller, R. and Tilmes, S. and Konopka, Paul and Grooß,
                      J.-U. and Jost, L. M.},
      title        = {{I}mpact of mixing and chemical change on ozone-tracer
                      relations in the polar vortex},
      journal      = {Atmospheric chemistry and physics},
      volume       = {5},
      issn         = {1680-7316},
      address      = {Katlenburg-Lindau},
      publisher    = {EGU},
      reportid     = {PreJuSER-47478},
      pages        = {3139 - 3151},
      year         = {2005},
      note         = {Record converted from VDB: 12.11.2012},
      abstract     = {Tracer-tracer relations have been used for a long time to
                      separate physico-chemical change from change caused by
                      transport processes. In particular, for more than a decade,
                      ozone-tracer relations have been used to quantify chemical
                      ozone loss in the polar vortex. The application of
                      ozone-tracer relations for quantifying ozone loss relies on
                      two hypotheses: that a compact ozone-tracer relation is
                      established in the 'early' polar vortex and that any change
                      of the ozone-tracer relation in the vortex over the course
                      of winter is caused predominantly by chemical ozone loss.
                      Here, we revisit this issue by analysing various sets of
                      measurements and the results from several models. We find
                      that mixing across the polar vortex edge impacts
                      ozone-tracer relations in a way that may solely lead to an
                      'underestimation' of chemical ozone loss and not to an
                      overestimation. Further, differential descent in the vortex
                      and internal mixing has only a negligible impact on ozone
                      loss estimates. Moreover, the representation of mixing in
                      three-dimensional atmospheric models can have a substantial
                      impact on the development of tracer relations in the model.
                      Rather compact ozone-tracer relations develop - in agreement
                      with observations in the vortex of a Lagrangian model
                      (CLaMS) where mixing is anisotropic and driven by the
                      deformation of the flow. We conclude that, if a reliable
                      'early vortex' reference can be obtained and if vortex
                      measurements are separated from mid-latitude measurements,
                      ozone-tracer relations constitute a reliable tool for the
                      quantitative determination of chemical ozone loss in the
                      polar vortex.},
      keywords     = {J (WoSType)},
      cin          = {ICG-I},
      ddc          = {550},
      cid          = {I:(DE-Juel1)VDB47},
      pnm          = {Chemie und Dynamik der Geo-Biosphäre},
      pid          = {G:(DE-Juel1)FUEK257},
      shelfmark    = {Meteorology $\&$ Atmospheric Sciences},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000233609900001},
      url          = {https://juser.fz-juelich.de/record/47478},
}