Eric C Apel¹, Behrooz Roozitalab², Rebecca S Hornbrook³, Louisa K Emmons², Duseong S. Jo⁴, Benjamin Gaubert⁵, Alan J Hills⁶, Daun Jeong⁶, Donald Ray Blake⁷, Barbara Barletta⁷, Nicola J Blake⁷, Simone Meinardi⁷ and Isobel J Simpson⁷, (1)University Corporation for Atmospheric Research, Boulder, CO, United States, (2)NSF National Center for Atmospheric Research (NSF NCAR), Atmospheric Chemistry Observations & Modeling Laboratory (ACOM), Boulder, United States, (3)National Center for Atmospheric Research, Atmospheric Chemistry Observations & Modeling Laboratory, Boulder, CO, United States, (4)Seoul National University, Earth and Environmental Sciences, Seoul, Korea, Republic of (South), (5)National Center for Atmospheric Research (NCAR), Atmospheric Chemistry Observations & Modeling Laboratory (ACOM), Boulder,CO, United States, (6)National Center for Atmospheric Research, Atmospheric Chemistry Observations & Modeling Laboratory, Boulder, United States, (7)University of California Irvine, Department of Chemistry, Irvine, United States