1. a Center for Aerosol Science and Engineering, Department of Energy, Environmental and Chemical Engineering, Washington University in St. Louis, St. Louis, Missouri, USA
2. b Environmental and Climate Science Department, Brookhaven National Laboratory, Upton, New York, USA
3. c Department of Atmospheric Science, University of Washington, Seattle, Washington, USA
4. d Department of Atmospheric Science, Colorado State University, Fort Collins, CO, USA
5. e School of Marine and Atmospheric Sciences, Stony Brook University, Stony Brook, NY, USA.
6. f Department of Chemistry, Purdue University, West Lafayette, Indiana, USA
7. g Department of Earth, Atmospheric, and Planetary Sciences, Purdue University, West Lafayette, Indiana, USA
8. h Department of Atmospheric Sciences, Texas A&M University, College Station, Texas, USA
9. i Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Key Laboratory for Aerosol-Cloud-Precipitation of China Meteorological Administration, Nanjing University of Information Science & Technology, Nanjing, China
10. j Department of Geography and Atmospheric Science, University of Kansas, Lawrence, Kansas, USA
11. k Pacific Northwest National Laboratory, Richland, Washington, USA
12. l Department of Atmospheric Sciences, University of North Dakota, Grand Forks, North Dakota, USA
13. m Department of Civil, Architectural and Environmental Engineering, Missouri University of Science and Technology, Rolla, Missouri, USA
14. n Department of Atmosphere Science, Yonsei university, Seoul, Korea
15. o Earth and Environmental Sciences Division, Los Alamos National Laboratory, Los Alamos, NM, USA
16. p Centre of Climate, Meteorology and Global Change (CMMG), University of Azores, Angra do Heroísmo, Portugal
17. q ESCER Centre, Department of Earth and Atmospheric Sciences, University of Quebec at Montreal, Montreal, Quebec, Canada
18. r Department of Hydrology and Atmospheric Sciences, University of Arizona, Tucson, AZ, USA
19. s Argonne National Laboratory, Argonne, IL, USA
20. t Department of Environmental Sciences, Rutgers University, New Brunswick, New Jersey, USA
21. u Sonoma Technology Inc., Petaluma, CA, USA
22. v Atmospheric Sciences Program and Department of Physics, Michigan Technological University, Houghton, Michigan, USA
23. w Department of Atmospheric Science, Colorado State University, Fort Collins, Colorado, USA
24. x School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, GA, USA
25. y Physics Department, University of Maryland Baltimore County (UMBC), Baltimore, MD, USA