% IMPORTANT: The following is UTF-8 encoded.  This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.

@ARTICLE{Hoppe:172581,
      author       = {Hoppe, Charlotte and Hoffmann, L. and Konopka, P. and
                      Grooß, J.-U. and Ploeger, F. and Günther, G. and Jöckel,
                      P. and Müller, Rolf},
      title        = {{T}he implementation of the {CL}a{MS} {L}agrangian
                      transport core into the chemistry climate model {EMAC}
                      2.40.1: application on age of air and transport of
                      long-lived trace species},
      journal      = {Geoscientific model development},
      volume       = {7},
      number       = {6},
      issn         = {1991-9603},
      address      = {Katlenburg-Lindau},
      publisher    = {Copernicus},
      reportid     = {FZJ-2014-06044},
      pages        = {2639 - 2651},
      year         = {2014},
      abstract     = {Lagrangian transport schemes have proven to be useful tools
                      for modelling stratospheric trace gas transport since they
                      are less diffusive than classical Eulerian schemes and
                      therefore especially well suited for maintaining steep
                      tracer gradients. Here, we present the implementation of the
                      full-Lagrangian transport core of the Chemical Lagrangian
                      Model of the Stratosphere (CLaMS) into the ECHAM/MESSy
                      Atmospheric Chemistry model (EMAC). We performed a 10-year
                      time-slice simulation to evaluate the coupled model system
                      EMAC/CLaMS. Simulated zonal mean age of air distributions
                      are compared to age of air derived from airborne
                      measurements, showing a good overall representation of the
                      stratospheric circulation. Results from the new Lagrangian
                      transport scheme are compared to tracer distributions
                      calculated with the standard flux-form semi-Lagrangian
                      (FFSL) transport scheme in EMAC. The differences in the
                      resulting tracer distributions are most pronounced in the
                      regions of strong transport barriers. The polar vortices are
                      presented as an example for isolated air masses which are
                      surrounded by a strong transport barrier and simulated trace
                      gas distributions are compared to satellite measurements.
                      The analysis of CFC-11, N2O, CH4, and age of air in the
                      polar vortex regions shows that the CLaMS Lagrangian
                      transport scheme produces a stronger, more realistic
                      transport barrier at the edge of the polar vortex than the
                      FFSL transport scheme of EMAC. Differences in simulated age
                      of air range up to 1 year in the Arctic polar vortex in late
                      winter/early spring. The new coupled model system EMAC/CLaMS
                      thus constitutes a suitable tool for future model studies of
                      stratospheric tracer transport.},
      cin          = {JSC / IEK-7 / JARA-HPC},
      ddc          = {910},
      cid          = {I:(DE-Juel1)JSC-20090406 / I:(DE-Juel1)IEK-7-20101013 /
                      $I:(DE-82)080012_20140620$},
      pnm          = {411 - Computational Science and Mathematical Methods
                      (POF2-411) / A Lagrangian Transport Core for the ECHAM/MESSy
                      Climate Model $(jiek71_20110501)$},
      pid          = {G:(DE-HGF)POF2-411 / $G:(DE-Juel1)jiek71_20110501$},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000346142200006},
      doi          = {10.5194/gmd-7-2639-2014},
      url          = {https://juser.fz-juelich.de/record/172581},
}