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@ARTICLE{Orr:187571,
      author       = {Orr, A. and Hosking, J. S. and Hoffmann, L. and Keeble, J.
                      and Dean, S. M. and Roscoe, H. K. and Abraham, N. L. and
                      Vosper, S. and Braesicke, P.},
      title        = {{I}nclusion of mountain-wave-induced cooling for the
                      formation of {PSC}s over the {A}ntarctic {P}eninsula in a
                      chemistry-climate model},
      journal      = {Atmospheric chemistry and physics},
      volume       = {15},
      number       = {2},
      issn         = {1680-7324},
      address      = {Katlenburg-Lindau},
      publisher    = {EGU},
      reportid     = {FZJ-2015-01199},
      pages        = {1071 - 1086},
      year         = {2015},
      abstract     = {An important source of polar stratospheric clouds (PSCs),
                      which play a crucial role in controlling polar stratospheric
                      ozone depletion, is from the temperature fluctuations
                      induced by mountain waves. However, this formation mechanism
                      is usually missing in chemistry–climate models because
                      these temperature fluctuations are neither resolved nor
                      parameterised. Here, we investigate the representation of
                      stratospheric mountain-wave-induced temperature fluctuations
                      by the UK Met Office Unified Model (UM) at climate scale and
                      mesoscale against Atmospheric Infrared Sounder satellite
                      observations for three case studies over the Antarctic
                      Peninsula. At a high horizontal resolution (4 km) the
                      regional mesoscale configuration of the UM correctly
                      simulates the magnitude, timing, and location of the
                      measured temperature fluctuations. By comparison, at a low
                      horizontal resolution (2.5° × 3.75°) the global climate
                      configuration fails to resolve such disturbances. However,
                      it is demonstrated that the temperature fluctuations
                      computed by a mountain wave parameterisation scheme inserted
                      into the climate configuration (which computes the
                      temperature fluctuations due to unresolved mountain waves)
                      are in relatively good agreement with the mesoscale
                      configuration responses for two of the three case studies.
                      The parameterisation was used to include the simulation of
                      mountain-wave-induced PSCs in the global chemistry–climate
                      configuration of the UM. A subsequent sensitivity study
                      demonstrated that regional PSCs increased by up to $50\%$
                      during July over the Antarctic Peninsula following the
                      inclusion of the local mountain-wave-induced cooling phase.},
      cin          = {JSC},
      ddc          = {550},
      cid          = {I:(DE-Juel1)JSC-20090406},
      pnm          = {511 - Computational Science and Mathematical Methods
                      (POF3-511)},
      pid          = {G:(DE-HGF)POF3-511},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000351170000019},
      doi          = {10.5194/acp-15-1071-2015},
      url          = {https://juser.fz-juelich.de/record/187571},
}