Simone Tilmes¹, Douglas Edward Kinnison², Jadwiga Richter³, Anne Sasha Glanville⁴, Michael J Mills¹, Daniele Visioni⁵, Douglas MacMartin⁶ and Ben Kravitz⁷, (1)National Center for Atmospheric Research, Atmospheric Chemistry, Observations, and Modeling Laboratory, Boulder, CO, United States, (2)NCAR, Boulder, CO, United States, (3)National Center for Atmospheric Research, Climate and Global Dynamics Laboratory, Boulder, CO, United States, (4)Colorado State University, Oskaloosa, KS, United States, (5)Cornell University, Ithaca, United States, (6)Cornell University, Sibley School of Mechanical and Aerospace Engineering, Ithaca, NY, United States, (7)Pacific Northwest National Laboratory, Richland, WA, United States