1. Department of Atmospheric Science, Colorado State University, Fort Collins, CO, USA
2. University of Trieste, Trieste, Italy
3. Istituto Nazionale di Oceanografia e di Geofisica Sperimentale, Trieste, Italy
4. National Center for Atmospheric Research, Boulder, CO, USA
5. Chemical Science Division, Earth System Research Laboratory, National Oceanic and Atmospheric Administration, Boulder, CO, USA
6. Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, CA, USA
7. Handix Scientific, Fort Collins, CO, USA
8. JUUL Labs, San Francisco, USA
9. Pacific Northwest National Laboratory, Richland, WA, USA
10. Scripps Institution of Oceanography, University of California San Diego, La Jolla, CA, USA