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@ARTICLE{Groo:32583,
      author       = {Grooß, J.-U. and Müller, R.},
      title        = {{T}he impact of mid-latitude intrusions into the polar
                      vortex on ozone loss estimates},
      journal      = {Atmospheric chemistry and physics},
      volume       = {3},
      issn         = {1680-7316},
      address      = {Katlenburg-Lindau},
      publisher    = {EGU},
      reportid     = {PreJuSER-32583},
      pages        = {395 - 402},
      year         = {2003},
      note         = {Record converted from VDB: 12.11.2012},
      abstract     = {Current stratospheric chemical model simulations
                      underestimate substantially the large ozone loss rates that
                      are derived for the Arctic from ozone sondes for January of
                      some years. Until now, no explanation for this discrepancy
                      has been found. Here, we examine the influence of intrusions
                      of mid-latitude air into the polar vortex on these ozone
                      loss estimates. This study focuses on the winter 1991/92,
                      because during this winter the discrepancy between simulated
                      and experimentally derived ozone loss rates is reported to
                      be the largest. Also during the considered period the vortex
                      was disturbed by a strong warming event with large-scale
                      intrusions of mid-latitude air into the polar vortex, which
                      is quite unusual for this time of the year. The study is
                      based on simulations performed with the Chemical Lagrangian
                      Model of the Stratosphere (CLaMS). Two methods for
                      determination the ozone loss are investigated, the so-called
                      vortex average approach and the Match method. The
                      simulations for January 1992 show that the intrusions induce
                      a reduction of vortex average ozone mixing ratio
                      corresponding to a systematic offset of the ozone loss rate
                      of about 12 ppb per day. This should be corrected for in the
                      vortex average method. The simulations further suggest, that
                      these intrusions do not cause a significant bias for the
                      Match method due to effective quality control measures in
                      the Match technique.},
      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:000182090500004},
      url          = {https://juser.fz-juelich.de/record/32583},
}