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https://doi.org/10.5194/egusphere-2024-3690
https://doi.org/10.5194/egusphere-2024-3690
03 Jan 2025
 | 03 Jan 2025

A new set of indicators for model evaluation complementing to FAIRMODE’s MQO

Alexander de Meij, Cornelis Cuvelier, Philippe Thunis, and Enrico Pisoni

Abstract. In this study, we assess the relevance and utility of several performance indicators developed within the FAIRMODE framework by evaluating eight CAMS models and their ensemble in calculating concentrations of key air pollutants, specifically NO2, PM2.5, PM10, and O3. The models' outputs were compared with observations that were not assimilated into the models. For NO2, the results highlight difficulties in accurately modelling concentrations at traffic stations, with improved performance when these stations are excluded. While all models meet the established criteria for PM2.5, indicators such as bias and Winter-Summer gradients reveal underlying issues in air quality modelling, questioning the stringency of the current criteria for PM2.5. For PM10, the combination of MQI, bias, and spatial-temporal gradient indicators prove most effective in identifying model weaknesses, suggesting possible areas of improvement. O3 evaluation shows that temporal correlation and seasonal gradients are useful in assessing model performance. Overall, the indicators provide valuable insights into model limitations, yet there is a need to reconsider the strictness of some indicators for certain pollutants.

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Journal article(s) based on this preprint

15 Jul 2025
A new set of indicators for model evaluation complementing FAIRMODE's modelling quality objective (MQO)
Alexander de Meij, Cornelis Cuvelier, Philippe Thunis, and Enrico Pisoni
Geosci. Model Dev., 18, 4231–4245, https://doi.org/10.5194/gmd-18-4231-2025,https://doi.org/10.5194/gmd-18-4231-2025, 2025
Short summary
Alexander de Meij, Cornelis Cuvelier, Philippe Thunis, and Enrico Pisoni

Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on egusphere-2024-3690', Anonymous Referee #1, 22 Jan 2025
    • AC2: 'Reply on RC1', Alexander de Meij, 25 Feb 2025
  • RC2: 'Comment on egusphere-2024-3690', Anonymous Referee #2, 26 Jan 2025
    • AC3: 'Reply on RC2', Alexander de Meij, 25 Feb 2025
  • RC3: 'Comment on egusphere-2024-3690', Anonymous Referee #3, 28 Jan 2025
    • AC4: 'Reply on RC3', Alexander de Meij, 25 Feb 2025
  • CEC1: 'Comment on egusphere-2024-3690', Juan Antonio Añel, 12 Feb 2025
    • AC1: 'Reply on CEC1', Alexander de Meij, 14 Feb 2025
      • CEC2: 'Reply on AC1', Juan Antonio Añel, 14 Feb 2025

Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on egusphere-2024-3690', Anonymous Referee #1, 22 Jan 2025
    • AC2: 'Reply on RC1', Alexander de Meij, 25 Feb 2025
  • RC2: 'Comment on egusphere-2024-3690', Anonymous Referee #2, 26 Jan 2025
    • AC3: 'Reply on RC2', Alexander de Meij, 25 Feb 2025
  • RC3: 'Comment on egusphere-2024-3690', Anonymous Referee #3, 28 Jan 2025
    • AC4: 'Reply on RC3', Alexander de Meij, 25 Feb 2025
  • CEC1: 'Comment on egusphere-2024-3690', Juan Antonio Añel, 12 Feb 2025
    • AC1: 'Reply on CEC1', Alexander de Meij, 14 Feb 2025
      • CEC2: 'Reply on AC1', Juan Antonio Añel, 14 Feb 2025

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision | EF: Editorial file upload
AR by Alexander de Meij on behalf of the Authors (17 Mar 2025)  Author's response   Author's tracked changes   Manuscript 
ED: Referee Nomination & Report Request started (17 Mar 2025) by Slimane Bekki
RR by Anonymous Referee #3 (20 Mar 2025)
RR by Anonymous Referee #2 (27 Mar 2025)
ED: Publish subject to minor revisions (review by editor) (05 Apr 2025) by Slimane Bekki
AR by Alexander de Meij on behalf of the Authors (09 Apr 2025)  Author's response   Author's tracked changes   Manuscript 
ED: Publish as is (10 Apr 2025) by Slimane Bekki
AR by Alexander de Meij on behalf of the Authors (17 Apr 2025)  Author's response   Manuscript 

Journal article(s) based on this preprint

15 Jul 2025
A new set of indicators for model evaluation complementing FAIRMODE's modelling quality objective (MQO)
Alexander de Meij, Cornelis Cuvelier, Philippe Thunis, and Enrico Pisoni
Geosci. Model Dev., 18, 4231–4245, https://doi.org/10.5194/gmd-18-4231-2025,https://doi.org/10.5194/gmd-18-4231-2025, 2025
Short summary
Alexander de Meij, Cornelis Cuvelier, Philippe Thunis, and Enrico Pisoni
Alexander de Meij, Cornelis Cuvelier, Philippe Thunis, and Enrico Pisoni

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Short summary
We assess the relevance and utility indicators developed within FAIRMODE by evaluating 9 CAMS models in calculated air pollutant values. For NO2, the results highlight difficulties at traffic stations. For PM2.5 and PM10 the bias and Winter-Summer gradients reveal issues. O3 evaluation shows that e.g. seasonal gradients are useful. Overall, the indicators provide valuable insights into model limitations, yet there is a need to reconsider the strictness of some indicators for certain pollutants.
Share