Evaluation of seven chemistry transport models in the framework of EURODELTA III intercomparison exercise

Mihaela Mircea (1) , Bertrand Bessagnet (2) , Marta G. Vivanco , Cornelius Cuvelier (3) , Guido Pirovano (4) , Svetlana Tsyro (5) , Sebnem Aksoyoglu (6) , Astrid Manders (7) , Maria-Teresa Pay (8) , Rainer Stern , Wenche Aas (9) , André S.H. Prevot (6) , Armin Aulinger , José Maria Baldasano (8) , Johannes Bieser , Gino Briganti (1) , Giuseppe Calori , Andrea Cappelletti (1) , Claudio Carnevale , Giancarlo Ciarelli (6) , Augustin Colette (2) , Florian Couvidat (2) , Massimo d'Isidoro (1) , Jean-Charles Dupont (10) , Hilde Fagerli (5) , Sandro Finardi , Lucia Gonzalez , Richard Kranenburg (8) , Frédérik Meleux (2) , Laurent Menut (11) , Pete Roberts , Laurence Rouil (2) , Camillo Silibello , Mark Theobald , Philippe Thunis (3) , Anthony Ung (2) , Les White

1 ENEA - Italian National agency for new technologies, Energy and sustainable economic development [Frascati]
2 INERIS - Institut National de l'Environnement Industriel et des Risques
3 IES - JRC Institute for Environment and Sustainability
4 RSE - Ricerca sul Sistema Energetico
5 MET - Norwegian Meteorological Institute [Oslo]
6 LAC - Laboratory of Atmospheric Chemistry [Paul Scherrer Institute]
7 TNO - The Netherlands Organisation for Applied Scientific Research
8 BSC-CNS - Barcelona Supercomputing Center - Centro Nacional de Supercomputacion
9 NILU - Norwegian Institute for Air Research
10 IPSL - Institut Pierre-Simon-Laplace
11 LMD - Laboratoire de Météorologie Dynamique (UMR 8539)

The EURODELTA III (ED-III) exercise aimed to perform a comprehensive chemistry transport model inter-comparison study exploiting the data from four intensive measurement campaigns carried out by EMEP. The campaigns were held in different seasons (1–30 June 2006; 8 January–4 February 2007; 17 September–15 October 2008; 25 February–26 March 2009) thus allowing to test the influence of different meteorological conditions on models’ results. Seven models simulated the air quality over the whole Europe: CHIM (CHIMERE; version chim2013), EMEP (rv 4.1.3), LOTO (LOTOSEUROS, V1.8), CAMX (CAMx, v5.41 VBS), MINNI (version 4.7), CMAQ (V5.0.1) and RCG (v.2.1). Except CMAQ, all the models performed simulations over the same domain with the same horizontal spatial resolution. They also used the same input data (emissions, meteorology and boundary conditions) as much as possible. This work presents and discusses the behaviour of the models with regard to the criteria defined in the EU Directive on Air Quality 2008/50/EC for the air concentrations of PM10, PM2.5, O3, NO2 and SO2 and to the meteorological conditions. The wet deposition of sulphate (S) (WSOx), of oxidized and reduced nitrogen (N) (WNOx and WNHx, respectively) and the air concentrations of the deposited species were also investigated. Furthermore, a comparison of the capacities of air quality models to simulate carbonaceous aerosols (elemental (EC) and organic carbon (OC)) in Europe was conducted, given the diversity in modelling natural precursor emissions and formation and evolution of organic species, both natural and anthropogenic. In addition to EMEP data, the evaluation of models’ output included AirBase data and meteorological data from more than 2000 synoptic stations. The simulated concentrations of organic aerosol (OA) were compared to measurements available from two intensive measurement field campaigns carried out in a joint framework of EMEP and EUCAARI (the European Integrated Project on Aerosol Cloud Climate and Air Quality Interactions) project in 2008 and 2009.

Mots clés: MODEL INTERCOMPARISON; AIR QUALITY; ATMOSPHERIC POLLUTANT CONCENTRATION; N AND S ATMOSPHERIC DEPOSITION

Domaines: Sciences de l'environnement

Mihaela Mircea, Bertrand Bessagnet, Marta G. Vivanco, Cornelius Cuvelier, Guido Pirovano, et al.. Evaluation of seven chemistry transport models in the framework of EURODELTA III intercomparison exercise. 18. International Conference on Harmonisation within Atmospheric Dispersion Modelling for Regulatory Purposes (HARMO 18), Oct 2017, Bologne, Italy. pp.115-120. ⟨ineris-01863208⟩