1. Atmospheric Chemistry and Dynamics LaboratoryNASA Goddard Space Flight Center Greenbelt Maryland USA
2. Joint Center for Earth Systems TechnologyUniversity of Maryland Baltimore County Baltimore Maryland USA
3. Department of Oceanic and Atmospheric ScienceUniversity of Maryland College Park Maryland USA
4. Atmospheric Chemistry and Dynamics BranchNASA Ames Research Center Moffett Field California USA
5. Division of Geological and Planetary SciencesCalifornia Institute of Technology Pasadena California USA
6. Bay Area Environmental Research Institute Petaluma California USA
7. Department of Environmental Science, Policy and ManagementUniversity of California Berkeley California USA
8. Atmospheric Sciences and Global Change DivisionPacific Northwest National Laboratory Richland Washington USA
9. Atmospheric Chemistry DivisionNational Center for Atmospheric Research Boulder Colorado USA
10. School of Earth and Atmospheric SciencesGeorgia Institute of Technology Atlanta Georgia USA
11. Department of Earth and Planetary SciencesHarvard University Cambridge Massachusetts USA
12. School of Engineering and Applied SciencesHarvard University Cambridge Massachusetts USA
13. Institute for Meteorology and GeophysicsUniversity of Innsbruck Innsbruck Austria
14. Department of ChemistryUniversity of Maryland College Park Maryland USA
15. Department of ChemistryUniversity of Oslo Oslo Norway
16. Chemical Sciences DivisionNOAA Earth System Research Laboratory Boulder Colorado USA
17. Cooperative Institute for Research in Environmental SciencesUniversity of Colorado Boulder Boulder Colorado USA
18. Division of Engineering and Applied ScienceCalifornia Institute of Technology Pasadena California USA
19. Institute of Ion Physics and Applied PhysicsUniversity of Innsbruck Innsbruck Austria