Valentina Aquila, American University, Department of Environmental Science, Washington, DC, United States, Rei Ueyama, NASA Ames Research Center, Moffett Field, CA, United States, Adam E Bourassa, University of Saskatchewan, Department of Physics & Engineering Physics, Saskatoon, SK, Canada, Sergey Khaykin, Laboratoire Atmosphères, Observations Spatiales (LATMOS), CNRS/INSU, Sorbonne Université, Guyancourt, France, Alexandre Baron, CIRES, U. of Colorado, Boulder / NOAA Chemical Sciences Laboratory, Boulder, United States, Landon A Rieger, University of Saskatchewan, Saskatoon, SK, Canada and Alexei Rozanov, University of Bremen, Institute of Environmental Physics, Bremen, Germany