1. Meteorology and Air Quality Section, Wageningen University, Wageningen, Netherlands
2. Department of Meteorology, and Bert Bolin Centre for Climate Research, Stockholm University, Stockholm, Sweden
3. Royal Netherlands Meteorological Institute, De Bilt, Netherlands
4. Department of Marine, Earth and Atmospheric Sciences, North Carolina State University, Raleigh, North Carolina
5. Exeter University, Exeter, United Kingdom
6. European Centre for Medium-Range Weather Forecasts, Reading, United Kingdom
7. Departament de Física, Grup de Meteorologia, Universitat de les Illes Balears, Palma de Mallorca, Spain
8. Eindhoven Technical University, Eindhoven, Netherlands