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Geoscientific Model Development An interactive open-access journal of the European Geosciences Union
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Volume 6, issue 4
Geosci. Model Dev., 6, 981-1028, 2013
https://doi.org/10.5194/gmd-6-981-2013
© Author(s) 2013. This work is distributed under
the Creative Commons Attribution 3.0 License.
Geosci. Model Dev., 6, 981-1028, 2013
https://doi.org/10.5194/gmd-6-981-2013
© Author(s) 2013. This work is distributed under
the Creative Commons Attribution 3.0 License.

Model description paper 22 Jul 2013

Model description paper | 22 Jul 2013

CHIMERE 2013: a model for regional atmospheric composition modelling

L. Menut1, B. Bessagnet2, D. Khvorostyanov1, M. Beekmann3, N. Blond4, A. Colette2, I. Coll3, G. Curci5, G. Foret3, A. Hodzic6, S. Mailler1, F. Meleux2, J.-L. Monge1, I. Pison7, G. Siour3, S. Turquety1, M. Valari1, R. Vautard7, and M. G. Vivanco8 L. Menut et al.
  • 1Laboratoire de Météorologie Dynamique, IPSL, CNRS, UMR8539, 91128 Palaiseau Cedex, France
  • 2Institut national de l'environnement industriel et des risques, Parc technologique ALATA, 60550 Verneuil en Halatte, France
  • 3Laboratoire Interuniversitaire des Systèmes Atmosphériques, IPSL, CNRS, UMR 7583, Université Paris Est Créteil (UPEC) and Université Paris Diderot (UPD), Créteil, France
  • 4Laboratoire Image Ville Environnement, CNRS/UDS, UMR7362, Strasbourg, France
  • 5Dipartimento di Scienze Fisiche e Chimiche – CETEMPS, Universita degli Studi dell'Aquila, L'Aquila, Italy
  • 6NCAR Atmospheric Chemistry Division, 3450 Mitchell Lane, Boulder, Colorado, USA
  • 7Laboratoire des Sciences du Climat et de l'Environnement, IPSL, CEA-CNRS-UVSQ, UMR8212, Gif sur Yvette, France
  • 8Environment Department, CIEMAT, Madrid, Spain

Abstract. Tropospheric trace gas and aerosol pollutants have adverse effects on health, environment and climate. In order to quantify and mitigate such effects, a wide range of processes leading to the formation and transport of pollutants must be considered, understood and represented in numerical models. Regional scale pollution episodes result from the combination of several factors: high emissions (from anthropogenic or natural sources), stagnant meteorological conditions, kinetics and efficiency of the chemistry and the deposition. All these processes are highly variable in time and space, and their relative contribution to the pollutants budgets can be quantified with chemistry-transport models. The CHIMERE chemistry-transport model is dedicated to regional atmospheric pollution event studies. Since it has now reached a certain level a maturity, the new stable version, CHIMERE 2013, is described to provide a reference model paper. The successive developments of the model are reviewed on the basis of published investigations that are referenced in order to discuss the scientific choices and to provide an overview of the main results.

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