1. Department of Chemistry, University of California Berkeley, Berkeley, California 94720, United States
2. Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, California 91125, United States
3. Division of Engineering and Applied Science, California Institute of Technology, Pasadena, California 91125, United States
4. Institute for the Study of Earth, Oceans, and Space, University of New Hampshire, Durham, New Hampshire 03824, United States
5. Department of Chemistry, University of California Irvine, Irvine, California 92697, United States
6. Department of Meteorology and Atmospheric Science, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
7. Atmospheric Chemistry Observations and Modeling Laboratory, NCAR, Boulder, Colorado 80301, United States
8. Chemical Sciences Division, NOAA Earth System Research Laboratory, Boulder, Colorado 80305, United States
9. Department of Earth and Planetary Sciences, University of California Berkeley, Berkeley, California 94720, United States