Doug A Day, CIRES, Boulder, CO, United States, Benjamin Nault, University of California Berkeley, Dept. of Earth and Planetary Science, Berkeley, CA, United States, Pedro Campuzano-Jost, University of Colorado at Boulder, Department of Chemistry and Biochemistry, Boulder, CO, United States, Jack E Dibb, Univ New Hampshire, Durham, NH, United States, Karl D Froyd, NOAA/CIRES, Boulder, CO, United States, Eric M Scheuer, University of New Hampshire Main Campus, Durham, NH, United States and Jose L Jimenez, University of Colorado at Boulder, Department of Chemistry, Boulder, CO, United States