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Geoscientific Model Development An interactive open-access journal of the European Geosciences Union
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https://doi.org/10.5194/gmd-2020-147
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/gmd-2020-147
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Submitted as: model description paper 08 Jun 2020

Submitted as: model description paper | 08 Jun 2020

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This preprint is currently under review for the journal GMD.

GenChem v1.0 – a chemical pre-processing and testing system for atmospheric modelling

David Simpson1,2, Robert Bergström2,3, Alain Briolat4, Hannah Imhof2, John Johansson2, Michael Priestley5, and Álvaro Valdebenito1 David Simpson et al.
  • 1EMEP MSC-W, Climate Modelling and Air Pollution Division, Norwegian Meteorological Institute, Oslo, Norway
  • 2Dept. Space, Earth & Environment, Chalmers University of Technology, Gothenburg, Sweden
  • 3Swedish Meteorological and Hydrological Institute, 60176 Norrköping, Sweden
  • 4Stockholm Environment Institute at York, Environ. Dept, University of York, Heslington, York, YO10 5DD, UK
  • 5Dept. Chemistry & Molecular Biology, University of Gothenburg, Gothenburg, Sweden

Abstract. This paper outlines the structure and usage of the GenChem system, which includes a chemical pre-processor (GenChem.py), and a simple box-model (boxChem). GenChem provides scripts and input files for converting chemical equations into differential form for use in atmospheric chemical transport models (CTMs) and/or the boxChem system. Although GenChem is primarily intended for users of the EMEP MSC-W CTM and related systems, boxChem can be run as a stand-alone chemical solver, enabling for exampleeasy testing of chemical mechanisms against each other. This paper presents an outline of the usage of the GenChem system, explaining input and output files, and presents some examples of usage.

The code needed to run GenChem is released as open-source code under the GNU license.

David Simpson et al.

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David Simpson et al.

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Short summary
This paper outlines the structure and usage of the GenChem system, which includes a chemical pre-processor (GenChem.py), and a simple box-model (boxChem). GenChem provides scripts and input files for converting chemical equations into differential form for use in atmospheric chemical transport models (CTMs) and/or the boxChem system. Although GenChem is primarily intended for users of the EMEP MSC-W CTM and related systems, boxChem can be run as a stand-alone chemical solver.
This paper outlines the structure and usage of the GenChem system, which includes a chemical...
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