Chloe Y. Gao¹, Colette L Heald¹, Pedro Campuzano Jost², Jose L Jimenez³ and Joseph M Katich⁴, (1)Massachusetts Institute of Technology, Civil and Environmental Engineering, Cambridge, MA, United States, (2)University of Colorado Boulder, Boulder, CO, United States, (3)University of Colorado at Boulder, Department of Chemistry, Boulder, CO, United States, (4)CIRES, Boulder, CO, United States