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@ARTICLE{Davies:54034,
      author       = {Davies, S. and Mann, G. W. and Carslaw, K. S. and
                      Chipperfield, M. P. and Remedios, J. J. and Allen, G. and
                      Waterfall, A. M. and Spang, R. and Toon, G. C.},
      title        = {{T}esting our understanding of {A}rctic denitrification
                      using {MIPAS}-{E} satellite measurements in winter
                      2002/2003},
      journal      = {Atmospheric chemistry and physics},
      volume       = {6},
      issn         = {1680-7316},
      address      = {Katlenburg-Lindau},
      publisher    = {EGU},
      reportid     = {PreJuSER-54034},
      pages        = {3149 - 3161},
      year         = {2006},
      note         = {Record converted from VDB: 12.11.2012},
      abstract     = {Observations of gas-phase HNO3 and N2O in the polar
                      stratosphere from the Michelson Interferometer for Passive
                      Atmospheric Sounding aboard the ENVISAT satellite (MIPAS-E)
                      were made during the cold Arctic winter of 2002/2003. Vortex
                      temperatures were unusually low in early winter and remained
                      favourable for polar stratospheric cloud formation and
                      denitrification until mid-January. MIPAS-E observations
                      provide the first dataset with sufficient coverage of the
                      polar vortex in mid-winter which enables a reasonable
                      estimate of the timing of onset and spatial distribution of
                      denitrification of the Arctic lower stratosphere to be
                      performed. We use the observations from MIPAS-E to test the
                      evolution of denitrification in the DLAPSE (Denitrification
                      by Lagrangian Particle Sedimentation) microphysical
                      denitrification modelcoupled to the SLIMCAT chemical
                      transport model. In addition, the predicted denitrification
                      from a simple equilibrium nitric acid trihydrate-based
                      scheme is also compared with MIPAS-E. Modelled
                      denitrification is compared with in-vortex NOy and N2O
                      observations from the balloon-borne MarkIV interferometer in
                      mid-December. Denitrification was clearly observed by
                      MIPAS-E in mid-December 2002 and reached $80\%$ in the core
                      of the vortex by early January 2003. The DLAPSE model is
                      broadly able to capture both the timing of onset and the
                      spatial distribution of the observed denitrification. A
                      simple thermodynamic equilibrium scheme is able to reproduce
                      the observed denitrification in the core of the vortex but
                      overestimates denitrification closer to the vortex edge.
                      This study also suggests that the onset of denitrification
                      in simple thermodynamic schemes may be earlier than in the
                      MIPAS-E observations.},
      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:000239410200001},
      url          = {https://juser.fz-juelich.de/record/54034},
}