Wolfgang Steinbrecht, Deutscher Wetterdienst Meteorological Observatory Hohenpeissenberg, Hohenpeissenberg, Germany, Lucien Froidevaux, NASA Jet Propulsion Laboratory, California Institute of Technology, Pasadena, United States, Sean M Davis, University of Colorado / CIRES, Boulder, CO, United States, Doug A Degenstein, University of Saskatchewan, Institute of Space and Atmospheric Studies, Saskatoon, SK, Canada, Jeannette Wild, NOAA NWS NCEP, Climate Prediction Center, College Park, MD, United States, Chris Roth, University of Saskatchewan, Saskatoon, SK, Canada, Niklaus Kaempfer, University of Bern, Bern, Switzerland, Thierry Leblanc, California Institute of Technology, Pasadena, CA, United States, Sophie Godin-Beekmann, CNRS, LATMOS, Paris, France, Corinne Vigouroux, Belgisch Instituut voor Ruimte-Aeronomie, Brussel, Belgium, Daan P. J. Swart, National Institute for Public Health and the Environment (RIVM), Bilthoven, Netherlands, Richard Querel, National Institute of Water & Atmospheric Research (NIWA), Lauder, New Zealand, Neil Harris, Cranfield University, Centre for Atmospheric Informatics and Emissions Technology, Cranfield, United Kingdom and Gerald E Nedoluha, Naval Research Lab, Washington, DC, United States