[1] CALTECH, Div Engn & Appl Sci, Pasadena, CA 91125 USA
[2] CALTECH, Div Chem & Chem Engn, Pasadena, CA 91125 USA
[3] CALTECH, Jet Prop Lab, Pasadena, CA USA
[4] Univ Minnesota, Dept Soil Water & Climate, St Paul, MN 55108 USA
[5] Univ Colorado, Dept Atmospher & Ocean Sci, Boulder, CO 80309 USA
[6] Belgian Inst Space Aeron, Brussels, Belgium
[7] Univ Wollongong, Sch Chem, Wollongong, NSW, Australia
[8] Univ York, Dept Chem, York YO10 5DD, N Yorkshire, England
[9] Inst Environm Phys, Bremen, Germany
[10] Natl Ctr Atmospher Res, Boulder, CO 80307 USA
[11] NOAA, Earth Syst Res Lab, Div Chem Sci, Boulder, CO USA
[12] Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA
[13] Univ Colorado, Dept Chem & Biochem, Boulder, CO 80309 USA