1. INPT-ENM CNRM UMR 3589, Météo-France/CNRS, Toulouse, France
2. CECIUMR5318, CERFACS, Toulouse, France
3. ARQI/Air Quality Research Division Environment and Climate Change Canada, Dorval (Québec), Canada
4. INPT CNRS, IMFT, Université de Toulouse, Toulouse, France