Preprints
https://doi.org/10.5194/gmd-2024-20
https://doi.org/10.5194/gmd-2024-20
Submitted as: model description paper
 | 
16 Feb 2024
Submitted as: model description paper |  | 16 Feb 2024
Status: a revised version of this preprint is currently under review for the journal GMD.

The CHIMERE chemistry-transport model v2023r1

Laurent Menut, Arineh Cholakian, Romain Pennel, Guillaume Siour, Sylvain Mailler, Myrto Valari, Lya Lugon, and Yann Meurdesoif

Abstract. A new version of the CHIMERE model is presented. This version contains both computational and physico-chemical changes. The computational changes make it easy to choose the variables to be extracted as a result, including values of maximum sub-hourly concentrations. Performance tests show that the model is 1.5 to 2 times faster than the previous version for the same set-up. Processes have been modified and updated such as turbulence, transport schemes and dry deposition. Optimization was also performed for the management of emissions such as anthropogenic and mineral dust. The impact of fires on wind speed, soil properties and LAI was added. Pollen emissions, transport and deposition were added for birch, ragweed, olive, grass. The model is validated with a simulation covering Europe with 60×60 km resolution and the entire year of 2019. Results are compared to various measurements, and statistical scores show that the model provides better results than the previous versions.

Laurent Menut, Arineh Cholakian, Romain Pennel, Guillaume Siour, Sylvain Mailler, Myrto Valari, Lya Lugon, and Yann Meurdesoif

Status: final response (author comments only)

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on gmd-2024-20', Anonymous Referee #1, 18 Mar 2024
  • RC2: 'Comment on gmd-2024-20', Anonymous Referee #2, 27 Mar 2024
  • CEC1: 'Comment on gmd-2024-20', Juan Antonio Añel, 27 Mar 2024
    • AC1: 'Reply on CEC1', Laurent Menut, 02 Apr 2024
      • CEC2: 'Reply on AC1', Juan Antonio Añel, 02 Apr 2024
  • RC3: 'Comment on gmd-2024-20', Anonymous Referee #3, 28 Mar 2024
  • AC2: 'Comment on gmd-2024-20', Laurent Menut, 17 Apr 2024
Laurent Menut, Arineh Cholakian, Romain Pennel, Guillaume Siour, Sylvain Mailler, Myrto Valari, Lya Lugon, and Yann Meurdesoif
Laurent Menut, Arineh Cholakian, Romain Pennel, Guillaume Siour, Sylvain Mailler, Myrto Valari, Lya Lugon, and Yann Meurdesoif

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Short summary
A new version of the CHIMERE model is presented. This version contains both computational and physico-chemical changes. The computational changes make it easy to choose the variables to be extracted as a result, including values of maximum sub-hourly concentrations. Performance tests show that the model is 1.5 to 2 times faster than the previous version for the same set-up. Processes have been modified and updated such as turbulence, transport schemes and dry deposition.