1. Aerosol and Haze Laboratory, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, China
2. Institute for Atmospheric and Earth System Research/Physics, Faculty of Science, University of Helsinki, Helsinki, Finland
3. Atmospheric Modelling Centre Lahti, Lahti University Campus, Lahti, Finland
4. Division of Nuclear Physics, Department of Physics, Lund University, Lund, Sweden
5. Swedish Meteorological and Hydrological Institute (SMHI), Research Department, Unit of Meteorology/Environment and Climate, Norrköping, Sweden
6. Climate and Marine Sciences Department, Eurasia Institute of Earth Sciences, Istanbul Technical University, Istanbul, Turkey
7. Department of Physics, Faculty of Science, University of Helsinki, Helsinki, Finland
8. Department of Meteorology (MISU) and Bolin Centre for Climate Research, Stockholm University, Stockholm, Sweden
9. Climate System Research Unit, Finnish Meteorological Institute, Helsinki, Finland
10. Science and Innovation Department, World Meteorological Organization (WMO), Geneva, Switzerland
11. Niels Bohr Institute, University of Copenhagen, Copenhagen, Denmark
12. Joint International Research Laboratory of Atmospheric and Earth System Sciences, School of Atmospheric Sciences, Nanjing University, Nanjing, China
13. School of Engineering Science, Lappeenranta-Lahti University of Technology (LUT), Lappeenranta, Finland