Kathleen Tuite¹, Jennie L Thomas², Steve Brown³, James M Roberts⁴, Patrick R Veres⁵, Rebecca A Washenfelder³, Cora Young⁶ and Jochen Stutz⁷, (1)University of California Los Angeles, Los Angeles, CA, United States, (2)IGE Institut des Géosciences de l’Environnement, Grenoble, France, (3)NOAA, Boulder, CO, United States, (4)NOAA/ESRL, Boulder, CO, United States, (5)Earth System Research Laboratory, Chemical Sciences Division, Boulder, CO, United States, (6)Memorial University of Newfoundland, St John's, NF, Canada, (7)UCLA, Los Angeles, CA, United States