Michael J Lawler¹, Eric S Saltzman¹, Andrea Baccarini², Julia Schmale³, Linn Karlsson⁴, Paul Zieger⁵ and Caroline Leck⁶, (1)University of California Irvine, Irvine, CA, United States, (2)Paul Scherrer Institute, Villigen, Switzerland, (3)Paul Scherrer Institute, Laboratory of Atmospheric Chemistry, Villingen, Switzerland, (4)Stockholm University, Stockholm, Sweden, (5)Stockholm University, ACES, Stockholm, Sweden, (6)Stockholm University, Department of Meteorology, Stockholm, Sweden