1. Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
2. Physics Department and Atmospheric Sciences Program, Michigan Technological University, Houghton, Michigan 49931, United States
3. Center for Electron Microscopy and Analysis, The Ohio State University, Columbus, Ohio 43212, United States
4. Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
5. Institute of Atmospheric Sciences and Climate (ISAC)-National Research Council of Itlay, 40129 Bologna, Italy
6. Department of Meteorology and Geophysics, University of Vienna, UZA II, Althanstraße 14, 1090 Vienna, Austria