Ruth Purvis¹, Shona Wilde¹, James R Hopkins², James D Lee², Alastair C Lewis³, Stuart Young⁴, Ralph Burton⁵, Ioana Colfescu⁶, Stephane Bauguitte⁷, Dominika Pasternak⁸ and Stephen Mobbs⁹, (1)University of York, Department of Chemistry, York, United Kingdom, (2)University of York, Wolfson Atmospheric Chemistry Laboratories, Department of Chemistry, York, United Kingdom, (3)University of York, York, United Kingdom, (4)Wolfson Atmospheric Chemistry Laboratories, Department of Chemistry, York, United Kingdom, (5)National Centre for Atmospheric Science, Environment, Leeds, United Kingdom, (6)National Centre for Atmospheric Science, Leeds, United Kingdom, (7)Facility for Airborne Atmospheric Measurements (FAAM), Cranfield, United Kingdom, (8)Facility for Airborne Atmospheric Measurements, Cranfield, United Kingdom, (9)Inver Grove Heights, MN, United States