Stefan Metzger¹, David Durden², Sreenath Paleri³, Matthias Sühring⁴, Brian Butterworth³, Ankur R Desai³, Christopher Florian², Matthias Mauder⁵, David M Plummer⁶, Zhien Wang⁷, Luise Wanner⁵, Ke Xu⁸ and Edward Sigel⁹, (1)National Ecological Observatory Network Program, Battelle, Boulder, CO, United States, (2)National Ecological Observatory Network, Battelle, Boulder, CO, United States, (3)University of Wisconsin Madison, Department of Atmospheric and Oceanic Sciences, Madison, WI, United States, (4)Institut für Meteorologie und Klimatologie, Hannover, Germany, (5)Karlsruhe Institute of Technology, Institute of Meteorology and Climate Research, Atmospheric Environmental Research (IMK-IFU), Garmisch-Partenkirchen, Germany, (6)University of Wyoming, Atmospheric Sciences, Laramie, WY, United States, (7)University of Colorado Boulder, Boulder, CO, United States, (8)University of Michigan, Ann Arbor, MI, United States, (9)University of Wyoming, Laramie, United States