Caroline B Alden¹, Sean Coburn², Robert Wright³, Dani Caputi⁴, Alex Rybchuk⁵, Griffith Wendland⁵, Ian Coddington⁶, Steve Conley⁷, Ian C Faloona⁸ and Gregory B Rieker⁹, (1)Cooperative Institute for Research in Environmental Sciences, Boulder, CO, United States, (2)University of Colorado, Boulder, CO, United States, (3)University of Colorado at Boulder, Boulder, CO, United States, (4)Portland, OR, United States, (5)University of Colorado at Boulder, Boulder, United States, (6)National Institute of Standards and Technology Boulder, Boulder, CO, United States, (7)Scientific Aviation, Boulder, CO, United States, (8)Univ California, Davis, Davis, CA, United States, (9)University of Colorado at Boulder, Department of Mechanical Engineering, Boulder, CO, United States