Caroline Womack¹, Nell Schafer², Sunil Baidar³, Alan Brewer⁴, Brian Carroll⁵, Richard Marchbanks⁶, Brandi McCarty⁷, Christoph J Senff⁸, Scott Sandberg⁹, Michael Zucker¹⁰, Maxwell Holloway¹¹, Xinrong Ren¹², Phillip Stratton¹³, Jiayang Sun¹⁴, Kelvin Bates¹⁵, Matthew Mitchell Coggon¹⁶, Chelsea E. Stockwell¹⁷, Carsten Warneke⁹, Christopher Jernigan¹⁸, Michael A Robinson¹⁹, Subi Thakali²⁰, Ilana Pollack²¹, Wyndom Chace²², Kristen L Zuraski²³, Eleanor Waxman²³, Drew Rollins⁹, Yaoxian Huang²⁴, Like WANG²⁵, Noribeth Mariscal²⁵, Emily Lill²⁶, Alexandre Baron²⁷, Kate Smith²⁸, Thierry Leblanc²⁹, Fernando Chouza²⁹, Kevin Cossel³⁰, Demetrios Pagonis³¹, Donald Olsen³², Randal S Martin³³, Lin Lyu³⁴, Max Horsford³⁵, Jiajue Chai³⁶, Audrey Gaudel³⁷, Brian McDonald³⁸, Meng Li²³ and Steve Brown⁹, (1)NOAA Boulder, Boulder, CO, United States, (2)NOAA, Chemical Science Laboratory, Boulder, United States, (3)University of Colorado at Boulder, Boulder, United States, (4)NOAA/ESRL/CSL, Boulder, United States, (5)NOAA Chemical Sciences Laboratory & CIRES at University of Colorado Boulder, Boulder, United States, (6)Cooperative Institute for Research in the Environmental Sciences, University of Colorado, Boulder and NOAA Chemical Sciences Laboratory, Boulder, CO, United States, (7)Cooperative Institute for research in Environmental Sciences, University of Colorado, Boulder, United States, (8)NOAA, Boulder, CO, United States, (9)NOAA Chemical Sciences Laboratory, Boulder, United States, (10)Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, United States, (11)Science and Technology Corporation, Boulder, United States, (12)NOAA, Air Resources Laboratory, College Park, United States, (13)NOAA Air Resources Laboratory; Department of Atmospheric and Oceanic Science, University of Maryland, College Park, United States, (14)University of Maryland College Park, Department of Geology, College Park, MD, United States, (15)University of Colorado Boulder, Department of Mechanical Engineering, Boulder, United States, (16)National Oceanic and Atmospheric Administration/U.S. Department of Commerce operative Institute for Research in Environmental Sciences/Chemical Sciences Division Boulder 80309 (United States), Chemical Sciences Division, Boulder, United States, (17)CU/CIRES; NOAA/CSL, Boulder, United States, (18)Environmental Protection Agency Research Triangle Park, Research Triangle Park, United States, (19)CIRES / NOAA Chemical Sciences Laboratory, Boulder, United States, (20)University of Wisconsin, Madison, Madison, United States, (21)CIRES, University of Colorado Boulder & NOAA Chemical Sciences Laboratory, Boulder, United States, (22)University of Colorado at Boulder, Department of Chemistry, Boulder, United States, (23)CU Boulder/CIRES, Boulder, United States, (24)NOAA STAR, College Park, United States, (25)Wayne State University, Civil & Environmental Engineering, Detroit, MI, United States, (26)Colorado State University, Department of Atmospheric Science, Fort Collins, United States, (27)CIRES, U. of Colorado, Boulder / NOAA Chemical Sciences Laboratory, Boulder, United States, (28)Institute for Arctic and Alpine Research, Boulder, CO, United States, (29)Jet Propulsion Laboratory, California Institute of Technology, Wrightwood, United States, (30)National Institute of Standards and Technology Boulder, Boulder, United States, (31)University of Colorado at Boulder, Cooperative Institute for Research in Environmental Sciences (CIRES) and Department of Chemistry, Boulder, United States, (32)Utah State University, Civil & Environmental Engineering, Logan, UT, United States, (33)Utah State Univ, Logan, United States, (34)SUNY College of Environmental Science and Forestry, Department of Chemistry, Syracuse, NY, United States, (35)SUNY College of Environmental Science and Forestry, Graduate Program in Environmental Science, Syracuse, United States, (36)State University of New York College of Environmental Science and Forestry, Department of Chemistry, Syracuse, United States, (37)CIRES, U. of Colorado/ NOAA Chemical Sciences Laboratory, Boulder, United States, (38)NOAA, Chemical Sciences Laboratory, Boulder, United States