EGU23-17485, updated on 11 Jun 2024
https://doi.org/10.5194/egusphere-egu23-17485
EGU General Assembly 2023
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

Meteorological variability and regional pollutant distributions during the summer 2022 ACROSS/PANAME campaign

Matthias Beekmann1, Guillaume Siour1, Ludovico Di Antonio2, Gilles Foret2, Frederic Meleux3, Augustin Colette3, Amandine Rosso4, Claudia Di Biagio1, Juan Cuesta2, Paola Formenti1, Aline Gratien1, Martial Haeffelin5, Simone Kotthaus5, Valery Masson6, Vincent Michoud1, and Christopher Cantrell2,7
Matthias Beekmann et al.
  • 1Université Paris Cité and Univ Paris Est Creteil, CNRS, LISA, F-75013 Paris, France
  • 2Univ Paris Est Creteil and Université Paris Cité, CNRS, LISA, F-94010 Créteil, France
  • 3Institut National De L’environnement Industriel et Des Risques (INERIS), Parc Technologique Alata BP2, 60550 Verneuil-en-Halatte, France
  • 4AirParif, Paris, France
  • 5Institut Pierre Simon Laplace (IPSL), Paris, France
  • 6Centre National de Recherches Météorologiques (CNRM), UMR 3589, Toulouse France
  • 7University of Colorado, Atmospheric and Oceanic Sciences (ATOC), Boulder, CO 80309.

The international ACROSS (Atmospheric ChemistRy Of the Suburban forest) intensive field measurement campaign (supported by the Make Our Planet Great Again initiative) took place from June 13 to July 25 2022 in and around the Ile-de-France during an exceptional hot (more than 3°C above the climatological mean for France) and dry summer season. This work will provide a broad classification of weather conditions that occurred during the campaign, useful for further analysis of observations and simulations. Weather scenarios will be analysed in terms of synoptic weather situations, relating transport patterns (regional advection to the Ile-de-France region, plumes from Paris agglomeration), temperature and relative humidity evolution. During the June-July 2022 period, several distinct weather and pollution patterns occurred, among which: (1) two strong heatwaves, with large photochemical activity promoting secondary pollutants build-up (O3, SOA), (2) advection of relatively clean oceanic air masses, and (3) Saharan dust and intense forest fire events with dust and fire aerosol advection to the Ile-de-France region. The analysis is based on meteorological data from several models (GFS, WRF, ARPEGE, AROME) and observations, pollution forecasts from the French Prev’Air system (http://www2.prevair.org/), and from the AirParif Esmeralda platform (http://www.esmeralda-web.fr/accueil/)  that have been used for the airborne campaign support. In addition, dedicated simulations with the CHIMERE model (see companion abstract by Di Antonio et al. for this session), and major pollutant observations by air quality networks, from satellites, or performed within ACROSS will be used to analyse how meteorological conditions and weather patterns impacted the spatial distributions of major primary and secondary chemical species. Especially tracers of anthropogenic and biogenic emissions and photochemical activity (O3, PM2.5, OA, BC, NOx, BVOC) will be analysed. 

 

Keywords: Meteorology, pollutant distributions, transport patterns, ACROSS, MOPGA  

How to cite: Beekmann, M., Siour, G., Di Antonio, L., Foret, G., Meleux, F., Colette, A., Rosso, A., Di Biagio, C., Cuesta, J., Formenti, P., Gratien, A., Haeffelin, M., Kotthaus, S., Masson, V., Michoud, V., and Cantrell, C.: Meteorological variability and regional pollutant distributions during the summer 2022 ACROSS/PANAME campaign, EGU General Assembly 2023, Vienna, Austria, 23–28 Apr 2023, EGU23-17485, https://doi.org/10.5194/egusphere-egu23-17485, 2023.