Christina Williamson¹, Agnieszka Kupc², Duncan Axisa³, Kelsey Bilsback⁴, Thaopaul V Bui⁵, Pedro Campuzano-Jost⁶, Maximilian Dollner⁷, Karl D Froyd⁸, Anna Lily Hodshire⁹, Jose L Jimenez¹⁰, Jack Kodros¹¹, Gan Luo¹², Daniel M Murphy¹³, Benjamin Nault¹⁴, Eric A Ray¹, Bernadett Weinzierl¹⁵, James Wilson¹⁶, Fangqun Yu¹², Pengfei Yu¹⁷, Jeffrey R Pierce¹¹ and Charles A Brock¹⁸, (1)NOAA/CIRES, Boulder, United States, (2)University of Vienna, Faculty of Physics, Vienna, Austria, (3)NCAR, Boulder, CO, United States, (4)Colorado State University, Department of Atmospheric Science, Fort Collins, CO, United States, (5)NASA Ames Research Center, Moffett Field, CA, United States, (6)University of Colorado at Boulder, Department of Chemistry and Biochemistry, Boulder, CO, United States, (7)Los Alamos, NM, United States, (8)NOAA/CIRES, Boulder, CO, United States, (9)Colorado State University, Fort Collins, CO, United States, (10)University of Colorado at Boulder, Department of Chemistry, Boulder, CO, United States, (11)Colorado State University, Atmospheric Science, Fort Collins, CO, United States, (12)SUNY Albany, Albany, NY, United States, (13)Earth System Research Laboratory, CSD, Boulder, CO, United States, (14)University of Colorado, Boulder, Boulder, CO, United States, (15)Centreville, MD, United States, (16)University of Denver, Denver, CO, United States, (17)CIRES, Boulder, CO, United States, (18)NOAA, Boulder, United States