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Volume 15, issue 11
Atmos. Chem. Phys., 15, 6159–6182, 2015
https://doi.org/10.5194/acp-15-6159-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue: CHemistry and AeRosols Mediterranean EXperiments (ChArMEx)...

Atmos. Chem. Phys., 15, 6159–6182, 2015
https://doi.org/10.5194/acp-15-6159-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 05 Jun 2015

Research article | 05 Jun 2015

Ozone and aerosol tropospheric concentrations variability analyzed using the ADRIMED measurements and the WRF and CHIMERE models

L. Menut1, S. Mailler1, G. Siour2, B. Bessagnet3, S. Turquety1, G. Rea1, R. Briant1, M. Mallet4, J. Sciare5,6, P. Formenti2, and F. Meleux3 L. Menut et al.
  • 1Laboratoire de Météorologie Dynamique, UMR CNRS8539, Ecole Polytechnique, Ecole Normale Supérieure, Université P.M.Curie, Ecole Nationale des Ponts et Chaussées, Palaiseau, France
  • 2Laboratoire Inter-Universitaire des Systèmes Atmosphériques, UMR CNRS7583, Université Paris Est Créteil et Université Paris Diderot, Institut Pierre Simon Laplace, Créteil, France
  • 3Institut National de l'Environnement Industriel et des Risques, Verneuil en Halatte, 60550, Parc Technologique ALATA, France
  • 4Laboratoire d'Aérologie, UMR CNRS5560, Université P. Sabatier, Toulouse, France
  • 5Laboratoire des Sciences du Climat et de l'Environnement (CNRS-CEA-UVSQ), Gif-sur-Yvette, France
  • 6The Cyprus Institute, Energy Environment and Water Research Center, Nicosia, Cyprus

Abstract. During the months of June and July 2013, over the Euro–Mediterranean area, the ADRIMED (Aerosol Direct Radiative Impact on the regional climate in the MEDiterranean region) project was dedicated to characterize the ozone and aerosol concentrations in the troposphere. It is first shown that this period was not highly polluted compared to previous summers in this region, with a moderate ozone production, no significant vegetation fire events and several precipitation periods scavenging the aerosol. The period is modeled with the WRF (Weather Research and Forecasting) and CHIMERE models, and their ability to quantify the observed pollution transport events is presented. The CHIMERE model simulating all kinds of sources (anthropogenic, biogenic, mineral dust, vegetation fires); the aerosol speciation, not available with the measurements, is presented: during the whole period, the aerosol was mainly constituted by mineral dust, sea salt and sulfates close to the surface and mainly by mineral dust in the troposphere. Compared to the AERONET (Aerosol Robotic Network) size distribution, it is shown that the model underestimates the coarse mode near mineral dust sources and overestimates the fine mode in the Mediterranean area, highlighting the need to improve the model representation of the aerosol size distribution both during emissions, long-range transport and deposition.

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Short summary
The ozone and aerosol concentration variability is studied over the Euro-Mediterranean area during the months of June and July 2013 and in the framework of the ADRIMED project. A first analysis is performed using meteorological variables, ozone and aerosol concentrations using routine network station, satellite and specific ADRIMED project airborne measurements. This analysis is complemented by modeling using the WRF and CHIMERE regional models.
The ozone and aerosol concentration variability is studied over the Euro-Mediterranean area...
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