1. School of Earth and Atmospheric Sciences Georgia Institute of Technology Atlanta Georgia USA
2. Department of Atmospheric Science Colorado State University Fort Collins Colorado USA
3. Department of Chemistry and Biochemistry University of Colorado Boulder Boulder Colorado USA
4. Cooperative Institute for Research in Environmental Sciences Boulder Colorado USA
5. Department of Atmospheric Sciences University of Washington Seattle Washington USA
6. Institute for the Study of Earth, Oceans, and Space University of New Hampshire Durham New Hampshire USA
7. Chemical Sciences Division, Earth System Research Laboratory National Oceanic and Atmospheric Administration Boulder Colorado USA
8. School of Chemical and Biomolecular Engineering Georgia Institute of Technology Atlanta Georgia USA
9. Foundation for Research and Technology Hellas Greece
10. National Observatory of Athens Athens Greece