Preprints
https://doi.org/10.5194/egusphere-2023-1418
https://doi.org/10.5194/egusphere-2023-1418
31 Aug 2023
 | 31 Aug 2023

Investigating the impact of HARMONIE-WINS50 (cy43) and LOTOS-EUROS (v2.2.002) coupling on NO2 concentrations in The Netherlands

Andres Yarce Botero, Michiel van Weele, Arjo Segers, Pier Siebesma, and Henk Eskes

Abstract. Meteorological fields calculated by Numerical Weather Prediction (NWP) Models drive offline Chemical Trans port Models (CTM) to solve the transport, chemical reactions, and atmospheric interaction over the geographical domain of interest. In this way, forecasts and (re-)analyses provided by NWP can be used for air quality forecasting, climate modeling, and environmental studies. The more precise the meteorological input data represents the atmospheric dynamics, the better the CTM represents pollutant transport, mixing, and the subsequent impact on surface air quality. HARMONIE (HIRLAM ALADIN Research on Mesoscale Operational NWP in Euromed) is a state-of-the-art non-hydrostatic NWP community model used at several European weather agencies to forecast weather at the local and/or regional scale. In this work, the HARMONIE WINS50 (cycle 43 cy43) reanalysis data set at a resolution of 0.025° × 0.025° covering an area surrounding the North Sea for the years 2019–2021 was offline coupled to the state-of-the-art model LOTOS-EUROS (v2.2.002), which is CTM that is one of the members of the Copernicus Atmosphere Monitoring Service (CAMS) ensemble of CTMs that is used to produce operational air quality forecasts over Europe and at a higher resolution also over the Netherlands. The impact on simulated NO2 concentrations of using meteorological fields from HARMONIE in LOTOS-EUROS compared to the use of fields from ECMWF (here used at 0.7° ×0.7°) is evaluated against ground-level sensors and TROPOMI tropospheric NO2 vertical columns. Furthermore, the difference between crucial meteorological input parameters such as the boundary layer height and the vertical diffusion coefficient between the hydrostatic (ECMWF) and non-hydrostatic (HARMONIE) model fields is studied, and the vertical profiles of temperature, humidity, and wind are evaluated against meteorological vertical profile observations at Cabauw in The Netherlands. The results of these first evaluations of the LOTOS-EUROS model performance in both configurations are used to investigate current uncertainties in air quality forecasting in relation to driving meteorological parameters and to assess the potential for improvements in high-resolution air quality forecasting episodes based on the HARMONIE NWP model.

Andres Yarce Botero, Michiel van Weele, Arjo Segers, Pier Siebesma, and Henk Eskes

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • CEC1: 'Comment on egusphere-2023-1418', Juan Antonio Añel, 06 Oct 2023
    • AC1: 'Reply on CEC1', Andres Yarce Botero, 11 Oct 2023
      • CEC2: 'Reply on AC1', Juan Antonio Añel, 11 Oct 2023
        • AC2: 'Reply on CEC2', Andres Yarce Botero, 11 Oct 2023
          • CEC3: 'Reply on AC2', Juan Antonio Añel, 11 Oct 2023
            • AC3: 'Reply on CEC3', Andres Yarce Botero, 12 Oct 2023
  • RC1: 'Comment on egusphere-2023-1418', Anonymous Referee #1, 31 Oct 2023
    • AC4: 'Reply on RC1', Andres Yarce Botero, 20 Nov 2023
    • AC5: 'Reply on RC1', Andres Yarce Botero, 20 Nov 2023
  • RC2: 'Comment on egusphere-2023-1418', Anonymous Referee #2, 17 Nov 2023
    • AC7: 'Reply on RC2', Andres Yarce Botero, 16 Jan 2024

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • CEC1: 'Comment on egusphere-2023-1418', Juan Antonio Añel, 06 Oct 2023
    • AC1: 'Reply on CEC1', Andres Yarce Botero, 11 Oct 2023
      • CEC2: 'Reply on AC1', Juan Antonio Añel, 11 Oct 2023
        • AC2: 'Reply on CEC2', Andres Yarce Botero, 11 Oct 2023
          • CEC3: 'Reply on AC2', Juan Antonio Añel, 11 Oct 2023
            • AC3: 'Reply on CEC3', Andres Yarce Botero, 12 Oct 2023
  • RC1: 'Comment on egusphere-2023-1418', Anonymous Referee #1, 31 Oct 2023
    • AC4: 'Reply on RC1', Andres Yarce Botero, 20 Nov 2023
    • AC5: 'Reply on RC1', Andres Yarce Botero, 20 Nov 2023
  • RC2: 'Comment on egusphere-2023-1418', Anonymous Referee #2, 17 Nov 2023
    • AC7: 'Reply on RC2', Andres Yarce Botero, 16 Jan 2024
Andres Yarce Botero, Michiel van Weele, Arjo Segers, Pier Siebesma, and Henk Eskes
Andres Yarce Botero, Michiel van Weele, Arjo Segers, Pier Siebesma, and Henk Eskes

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Short summary
HARMONIE WINS50 reanalysis data with 0.025° × 0.025° resolution from 2019 to 2021 was coupled with the LOTOS-EUROS Chemical Transport Model. HARMONIE and ECMWF meteorology configurations against Cabauw observations (52.0N; 4.9W) were evaluated as simulated NO2 concentrations with ground-level sensors. Differences in crucial meteorological input parameters (boundary layer height, vertical diffusion coefficient) between the hydrostatic (ECMWF) and non-hydrostatic (HARMONIE) models were analyzed.