Charles A Brock¹, Agnieszka Kupc², Christina Williamson³, Karl D Froyd⁴, Gregory P Schill⁴, Daniel M Murphy⁵, Jose L Jimenez⁶, Pedro Campuzano-Jost⁷, Bernadett Weinzierl⁸, Maximilian Dollner⁹, Joshua Peter Schwarz¹⁰, Joseph M Katich¹¹, Jack E Dibb¹², Glenn S Diskin¹³ and Thaopaul V Bui¹⁴, (1)NOAA Boulder, Boulder, CO, United States, (2)University of Vienna, Faculty of Physics, Vienna, Austria, (3)NOAA/CIRES, Boulder, United States, (4)NOAA/CIRES, Boulder, CO, United States, (5)Earth System Research Laboratory, CSD, Boulder, CO, United States, (6)University of Colorado at Boulder, Department of Chemistry, Boulder, CO, United States, (7)University of Colorado at Boulder, Department of Chemistry and Biochemistry, Boulder, CO, United States, (8)Centreville, MD, United States, (9)Los Alamos, NM, United States, (10)NOAA ESRL, Boulder, CO, United States, (11)CIRES, Boulder, CO, United States, (12)Univ New Hampshire, Durham, NH, United States, (13)NASA Langley Research Ctr, Hampton, VA, United States, (14)NASA Ames Research Center, Moffett Field, CA, United States