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@ARTICLE{Lemmen:47480,
      author       = {Lemmen, C. and Müller, M. and Konopka, Paul and Dameris,
                      M.},
      title        = {{C}ritique of the tracer-tracer correlation technique and
                      its potential to analyze polar chemical {O}3 loss in
                      chemistry-climate models},
      journal      = {Journal of Geophysical Research},
      volume       = {111},
      issn         = {0148-0227},
      address      = {Washington, DC},
      publisher    = {Union},
      reportid     = {PreJuSER-47480},
      pages        = {D18307},
      year         = {2006},
      note         = {Record converted from VDB: 12.11.2012},
      abstract     = {The tracer- tracer correlation technique ( TRAC) has been
                      widely employed to infer chemical ozone loss from
                      observations. Yet, its applicability to chemistry- climate
                      model ( CCM) data is disputed. Here, we report the
                      successful application of TRAC on the results of a CCM
                      simulation. By comparing TRAC- calculated ozone loss to
                      ozone loss derived with the passive ozone method in a
                      chemistry transport model we differentiate effects of
                      internal mixing and cross vortex boundary mixing on a TRAC
                      reference correlation. As a test case, we consider results
                      of a cold Arctic winter/ spring episode from an E39/ C
                      experiment, where typical features, for example, sufficient
                      polar stratospheric cloud formation potential,
                      denitrification and dehydration, and intermittent and final
                      stratospheric warming events, are simulated. We find that
                      internal mixing does not impact the TRAC- derived reference
                      correlation at all. Mixing across the vortex boundary would
                      lead to an underestimation of ozone loss by similar to
                      $10\%$ when calculated with TRAC. We provide arguments that
                      TRAC is a consistent and conservative method to derive
                      chemical ozone loss and can be used to extract its chemical
                      signature also from CCM simulations. As a consequence, we
                      will be able to provide a lower bound for chemical ozone
                      loss for model simulations where a passive ozone tracer is
                      not available.},
      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:000240945700002},
      doi          = {10.1029/2006JD007298},
      url          = {https://juser.fz-juelich.de/record/47480},
}