Bernard Legras, CNRS, Paris Cedex 16, France, Hugo Lestrelin, ENS, Paris, France, Aurelien Podglajen, CNRS/PSL-ENS/Sorbonne Université/Ecole Polytechnique, Laboratoire de Météorologie Dynamique, Paris, France, Mikail Salihoglu, Sorbonne Université, Paris, France, Sergey Khaykin, LATMOS, UVSQ/CNRS, Guyancourt, France, Lars Isaksen, European Center for Medium-Range Weather Forecasts, Reading, United Kingdom, Silvia Bucci, LMD-CNRS, Paris, France and Pasquale Sellitto, LISA Laboratoire Interuniversitaire des Systèmes Atmosphériques, Créteil Cedex, France

K. Emma Knowland^1,2, Pam Wales³, Lawrence Coy^2,4, Krzysztof Wargan^2,4, Christoph Keller^1,2, Lesley E Ott², Steven Pawson² and Sebastian David Eastham⁵, (1)Universities Space Research Association Columbia, Columbia, MD, United States, (2)NASA Goddard Space Flight Center, Global Modeling and Assimilation Office, Greenbelt, MD, United States, (3)Universities Space Research Association Greenbelt, Greenbelt, MD, United States, (4)Science Systems and Applications, Inc., Lanham, MD, United States, (5)Massachusetts Institute of Technology, Laboratory for Aviation and the Environment, Cambridge, MA, United States

Hao Ye, University of Reading, Reading, RG6, United Kingdom, Michaela Imelda Hegglin, Unversity of Reading, Reading, United Kingdom, Martina Krämer, Forschungszentrum Juelich, Juelich, Germany, Christian Rolf, Forschungszentrum Juelich, IEK-7, Juelich, Germany, Alexandra Laeng, Karlsruhe Institute of Technology, IMK-ASF, Karlsruhe, Germany, Dale F Hurst, Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, CO, United States; NOAA Earth System Research Laboratory, Global Monitoring Division, Boulder, CO, United States and Holger Voemel, National Center for Atmospheric Research, Earth Observing Laboratory, Boulder, CO, United States

Graham W Mann¹, James Simon Anthony Brooke², Kamalika Sengupta¹, Lauren Marshall³, Sandip Dhomse⁴, Wuhu Feng⁴, Ken S Carslaw², Charles Bardeen⁵, Nicolas Bellouin⁶, M Dalvi⁷, Colin Johnson⁸, Luke Abraham³, Samuel Remy⁹, Vincent Huijnen¹⁰, Simon Henri Chabrillat¹¹, Zak Kipling¹², Terry Deshler¹³, Larry Willis Thomason¹⁴ and John M C Plane¹, (1)University of Leeds, Leeds, LS2, United Kingdom, (2)University of Leeds, Leeds, United Kingdom, (3)University of Cambridge, Cambridge, United Kingdom, (4)University of Leeds, School of Earth and Environment, Leeds, United Kingdom, (5)National Center for Atmospheric Research, Boulder, CO, United States, (6)University of Reading, Department of Meteorology, Reading, United Kingdom, (7)Met Office, Exeter, United Kingdom, (8)Met Office Hadley center for Climate Change, Exeter, United Kingdom, (9)HYGEOS research consultancy, Lille, France, (10)Royal Netherlands Meteorological Institute, De Bilt, Netherlands, (11)Royal Belgian Institute for Space Aeronomy, Brussels, Belgium, (12)European Centre for Medium-Range Weather Forecasts, Reading, United Kingdom, (13)University of Wyoming, Laramie, WY, United States, (14)NASA Langley Research Center, Hampton, VA, United States

Gabriele P Stiller¹, Jeremy J. Harrison², Florian Haenel¹, Norbert Glatthor¹, Sylvia Kellmann¹, Thomas von Clarmann¹, Sheena Loeffel³ and Rostislav Kouznetsov⁴, (1)Karlsruhe Institute of Technology, Karlsruhe, Germany, (2)University of Leicester, Department of Physics and Astronomy, Leicester, United Kingdom, (3)German Aerospace Center DLR Oberpfaffenhofen, Wessling, Germany, (4)Finnish Meteorological Institute, Helsinki, Finland

Patrick Sheese¹, Kaley A Walker¹ and Chris D. Boone², (1)University of Toronto, Department of Physics, Toronto, ON, Canada, (2)University of Waterloo, Department of Chemistry, Waterloo, ON, Canada

Landon A Rieger¹, Adam E Bourassa², Daniel Zawada¹, Doug A Degenstein², Sergey M. Khaykin³ and Ghassan Taha⁴, (1)University of Saskatchewan, Saskatoon, SK, Canada, (2)University of Saskatchewan, Department of Physics & Engineering Physics, Saskatoon, SK, Canada, (3)LATMOS Laboratoire Atmosphères, Milieux, Observations Spatiales, LATMOS, Paris Cedex 05, France, (4)Universities Space Research Association, NASA/code 614, Greenbelt, MD, United States

Piera Raspollini¹, Flavio Barbara¹, Massimo Bianchini², Manfred Birk³, Simone Ceccherini¹, Angelika Dehn⁴, Bianca Maria Dinelli⁵, Anu Dudhia⁶, Jean-Marie Flaud⁷, Marco Gai¹, Michael Hoepfner⁸, Daan Hubert⁹, Arno Keppens⁹, Michael Kiefer⁸, Anna Kleinert⁸, David Moore¹⁰, Enzo Papandrea¹¹, Gaetan P Perron¹², Alessandro Piro¹³, Manuel Lopez-Puertas¹⁴, Hermann Oelhaf⁸, Paolo Pettinari¹¹, John J Remedios¹⁰, Marco Ridolfi¹⁵, Luca Sgheri¹⁶, Georg Wagner³, Gerald Wetzel⁸ and Nicola Zoppetti¹, (1)Institute of Applied Physics "Nello Carrara'' - National Research Center of Italy, Sesto Fiorentino, Italy, (2)Institute for Complex Systems of the National Research Center of Italy, Sesto Fiorentino, Italy, (3)Deutsches Zentrum fuer Luft und Raumfahrt (DLR), Remote Sensing Technology Institute, Wessling, Germany, (4)European Space Research Institute, Frascati, Italy, (5)CNR Institute of Atmospheric Sciences and Climate, Bologna, Italy, (6)Atmospheric, Oceanic and Planetary Physics, Clarendon Laboratory, Oxford University, Oxford, United Kingdom, (7)Laboratoire Interuniversitaire des Systèmes Atmosphériques (LISA), Créteil Cedex, France, (8)Karlsruhe Institute of Technology, Institute of Meteorology and Climate Research, Karlsruhe, Germany, (9)Belgian Institute for Space Aeronomy, Brussels, Belgium, (10)University of Leicester, Physics and Astronomy, Leicester, United Kingdom, (11)Institute of Atmospheric Sciences and Climate, National Research Center of Italy, Bologna, Italy, (12)ABB Inc., Québec, Canada, (13)SERCO SpA c/o European Space Agency ESA-ESRIN, Frascati, Italy, (14)Instituto de Astrofisica de Andalusia, Granada, Spain, (15)Istituto Nazionale di Ottica - Consiglio Nazionale delle Ricerche, Sesto Fiorentino, Italy, (16)Istituto per le Applicazioni del Calcolo, Consiglio Nazionale delle Ricerche, Firenze, Italy

Susan Kizer¹, Marilee Roell², David E Flittner¹, Robert Damadeo¹, Larry Willis Thomason¹, Kevin Leavor³, Travis N Knepp¹, Caroline M Roller⁴, Dale F Hurst⁵, Emrys Hall⁶, Allen F Jordan⁵, Patrick Cullis⁵, Bryan J Johnson⁷ and Richard Querel⁸, (1)NASA Langley Research Center, Hampton, VA, United States, (2)Science Directorate, NASA Langley Research Center, Hampton, VA, United States, (3)SSAI, Hampton, VA, United States, (4)Science Systems and Applications, Inc. Hampton, Hampton, VA, United States, (5)Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, CO, United States, (6)Global Monitoring Division, NOAA Earth System Research Laboratory, Boulder, CO, United States, (7)NOAA Boulder, ESRL/GML, Boulder, CO, United States, (8)National Institute of Water & Atmospheric Research (NIWA), Lauder, New Zealand

Jeannette Wild, Earth System Science Interdisciplinary Center, COLLEGE PARK, MD, United States, Irina V Petropavlovskikh, Cooperative Institute for Research in Environmental Sciences, Boulder, CO, United States, Craig S Long, NOAA Science Center, College Park, MD, United States, Audra McClure-Begley, NOAA Boulder, Boulder, CO, United States, Koji Miyagawa, NOAA Boulder, Boulder, United States, Bryan J Johnson, NOAA Boulder, ESRL/GML, Boulder, CO, United States, Lawrence E Flynn, NOAA Center for Satellite Applications and Reserch, STAR, College Park, MD, United States, Sophie Godin-Beekmann, LATMOS Laboratoire Atmosphères, Milieux, Observations Spatiales, Paris Cedex 05, France, Thierry Leblanc, Jet Propulsion Laboratory, Pasadena, CA, United States, Eliane Maillard-Barras, Federal Office of Meteorology and Climatology, MeteoSwiss, Payerne, Switzerland and Gerald E Nedoluha, Naval Research Lab, Washington, DC, United States

Kaley A Walker¹, Patrick Sheese¹, Jiansheng Zou¹ and Chris D. Boone², (1)University of Toronto, Department of Physics, Toronto, ON, Canada, (2)University of Waterloo, Department of Chemistry, Waterloo, ON, Canada

Jiansheng Zou¹, Kaley A Walker¹, Patrick Sheese¹ and Chris D. Boone², (1)University of Toronto, Department of Physics, Toronto, ON, Canada, (2)University of Waterloo, Department of Chemistry, Waterloo, ON, Canada