1. Department of Atmospheric Science Colorado State University Fort Collins CO USA
2. Department of Meteorology University of Reading Reading UK
3. NOAA Earth System Research Laboratory Boulder CO USA
4. Department of Atmospheric Sciences University of Washington Seattle WA USA
5. Department of Earth and Atmospheric Sciences ESCER Centre, University of Quebec at Montreal Montreal QC Canada
6. Pacific Northwest National Laboratory Richland WA USA
7. Center for Aerosol Science and Engineering, Department of Energy, Environmental and Chemical Engineering Washington University in Saint Louis Saint Louis MO USA