Benjamin Gaubert¹, Mohammad Amin Mirrezaei², Avelino F Arellano Jr², Rafael P. Fernandez³, Ivan Ortega⁴, Louisa K Emmons¹, Behrooz Roozitalab¹, Lori Bruhwiler⁵, Youmi Oh^5,6, Xin Lan^5,6, Gabrielle Petron^5,7, Kathryn McKain⁵, Alfonso Saiz-Lopez⁸, Carlos Cuevas⁸, Chuan Feng⁹, Yangyang Xu⁹ and Guy Brasseur^1,10, (1)NSF National Center for Atmospheric Research (NSF NCAR), Atmospheric Chemistry Observations & Modeling Laboratory (ACOM), Boulder, United States, (2)University of Arizona, Department of Hydrology and Atmospheric Sciences, Tucson, AZ, United States, (3)National Research Council (ICB-CONICET), Institute for Interdisciplinary Science, Mendoza, Argentina, (4)NSF National Center for Atmospheric Research (NSF NCAR), Atmospheric Chemistry Observations & Modeling Laboratory (ACOM), Boulder, CO, United States, (5)NOAA, Global Monitoring Laboratory, Boulder, United States, (6)University of Colorado Boulder, Cooperative Institute for Research in Environmental Sciences, Boulder, United States, (7)University of Colorado, Boulder, Cooperative Institute for Research in Environmental Sciences, Boulder, United States, (8)Spanish National Research Council, Department of Atmospheric Chemistry and Climate, Institute of Physical Chemistry Rocasolano (CSIC), Madrid, Spain, (9)Texas A&M University, Department of Atmospheric Sciences, College Station, United States, (10)Max Planck Institute for Meteorology, Hamburg, Germany