Darin W Toohey, Univ Colorado, Boulder, CO, United States, Adriana Raudzens Bailey, National Center for Atmospheric Research, Boulder, CO, United States, Teresa Lynn Campos, Natl Ctr Atmospheric Research, Boulder, CO, United States, Emily Fischer, Colorado State University, Atmospheric Science, Fort Collins, CO, United States, Frank M Flocke, NCAR, Boulder, CO, United States, Stephanie Redfern, Boulder, CO, United States, John M Reeves, NCAR, Broomfield, CO, United States, Cynthia H Twohy, NorthWest Research Associates Boulder, Boulder, CO, United States and Robert J Yokelson, University of Montana, Department of Chemistry, Missoula, MT, United States