Carsten Warneke¹, Matthew Mitchell Coggon^2,3, Georgios Gkatzelis^2,3, Brian C McDonald^4,5, Jeff Peischl^6,7, Kenneth C. Aikin², Jessica Gilman³, Stuart A McKeen⁸, Thomas B Ryerson⁹ and Michael Trainer⁴, (1)NOAA Boulder, Boulder, CO, United States, (2)Cooperative Institute for Research in Environmental Sciences, Boulder, CO, United States, (3)NOAA Earth System Research Laboratory, Chemical Sciences Division, Boulder, CO, United States, (4)Chemical Sciences Division, NOAA Earth System Research Laboratory, Boulder, CO, United States, (5)Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, CO, United States, (6)NOAA Chemical Sciences Division, Boulder, CO, United States, (7)Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, Boulder, CO, United States, (8)NOAA/ESRL, Boulder, CO, United States, (9)NOAA ESRL Chemical Sciences Division, Boulder, CO, United States