Eric J Hintsa^1,2, Fred L Moore^1,2, Jon David Nance^1,2, Geoffrey S Dutton^1,2, Brad David Hall², Audra McClure-Begley^1,2, James W Elkins², Chelsea R Thompson^3,4, Jeff Peischl^1,4, Ilann Bourgeois⁵, Thomas B Ryerson⁴, Junhua Liu⁶, Sarah Strode⁷, Colleen Baublitz⁸, Arlene M Fiore⁸, Lee T Murray⁹, Clare Marie Flynn¹⁰ and Forrest Lacey¹¹, (1)University of Colorado / CIRES, Boulder, CO, United States, (2)NOAA/ESRL Global Monitoring Division, Boulder, CO, United States, (3)Scientific Aviation, Boulder, CO, United States, (4)NOAA/ESRL Chemical Sciences Division, Boulder, CO, United States, (5)CU/CIRES - NOAA/CSD, Boulder, CO, United States, (6)Universities Space Research Association Greenbelt, Greenbelt, MD, United States, (7)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (8)Columbia University, Department of Earth and Environmental Sciences, Palisades, NY, United States, (9)University of Rochester, Department of Earth and Environmental Sciences, Rochester, NY, United States, (10)University of California, Irvine, Department of Earth System Science, Irvine, CA, United States, (11)National Center for Atmospheric Research, Boulder, CO, United States