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Discussion papers | Copyright
https://doi.org/10.5194/gmd-2018-201
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Model description paper 03 Sep 2018

Model description paper | 03 Sep 2018

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This discussion paper is a preprint. It is a manuscript under review for the journal Geoscientific Model Development (GMD).

The atmospheric chemistry box model CAABA/MECCA-4.0gmdd

Rolf Sander1, Andreas Baumgaertner2, David Cabrera1, Franziska Frank3, Jens-Uwe Grooß4, Sergey Gromov1,a, Hartwig Harder1, Vincent Huijnen5, Patrick Jöckel3, Vlassis A. Karydis1, Kyle E. Niemeyer6, Andrea Pozzer1, Hella Riede1,b, Martin G. Schultz7,c, Domenico Taraborrelli7, and Sebastian Tauer1 Rolf Sander et al.
  • 1Air Chemistry Department, Max-Planck Institute of Chemistry, P.O. Box 3060, 55020 Mainz, Germany
  • 2Deutsches Zentrum für Luft- und Raumfahrt (DLR), Project Management Agency, 53227 Bonn, Germany
  • 3Deutsches Zentrum für Luft- und Raumfahrt (DLR), Institut für Physik der Atmosphäre, Oberpfaffenhofen, 82234 Weßling, Germany
  • 4IEK-7, Forschungszentrum Jülich, Jülich, Germany
  • 5Royal Netherlands Meteorological Institute (KNMI), De Bilt, the Netherlands
  • 6School of Mechanical, Industrial & Manufacturing Engineering, Oregon State University, Corvallis, Oregon, USA
  • 7IEK-8, Forschungszentrum Jülich, Jülich, Germany
  • aalso at: Institute of Global Climate and Ecology (Roshydromet and RAS), Moscow, Russia
  • bnow at: Research and Development, Method Development in Remote Sensing, German Weather Service (DWD), Germany
  • cnow at: Jülich Supercomputing Center (JSC), Forschungszentrum Jülich, Jülich, Germany

Abstract. We present version 4.0gmdd of the atmospheric chemistry box model CAABA/MECCA which now includes a number of new features: (i) skeletal mechanism reduction, (ii) the MOM chemical mechanism for volatile organic compounds, (iii) an option to include reactions from the Master Chemical Mechanism (MCM) and other chemical mechanisms, (iv) updated isotope tagging, and (v) improved and new photolysis modules (JVAL, RADJIMT, DISSOC). Further, when MECCA is connected to a global model, the new feature of coexisting multiple chemistry mechanisms (PolyMECCA/CHEMGLUE) can be used. Additional changes have been implemented to make the code more user-friendly and to facilitate the analysis of the model results. Like earlier versions, CAABA/MECCA-4.0gmdd is a community model published under the GNU General Public License.

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We present the atmospheric chemistry box model CAABA/MECCA which now includes a number of new features: skeletal mechanism reduction, the MOM chemical mechanism for volatile organic compounds, an option to include reactions from the Master Chemical Mechanism (MCM) and other chemical mechanisms, updated isotope tagging, improved and new photolysis modules, and the new feature of coexisting multiple chemistry mechanisms. CAABA/MECCA is a community model published under the GPL.
We present the atmospheric chemistry box model CAABA/MECCA which now includes a number of new...
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