Heiko Goelzer, Institute for Marine and Atmospheric Research Utrecht, Utrecht, Netherlands, Sophie Nowicki, NASA GSFC, Greenbelt, MD, United States, Antony John Payne, University of Bristol, Bristol, BS8, United Kingdom, Eric Y Larour, Jet Propulsion Laboratory, Pasadena, CA, United States, Ayako Abe-Ouchi, University of Tokyo, Atmosphere and Ocean Research Institute, Bunkyo-ku, Japan, Jonathan M Gregory, National Centre for Atmospheric Science, University of Reading, Reading, United Kingdom, William Lipscomb, Los Alamos Natl Lab, Los Alamos, CO, United States, Helene L Seroussi, NASA Jet Propulsion Laboratory, Pasadena, CA, United States, Andrew Shepherd, University of Leeds, Leeds, LS2, United Kingdom and The ISMIP6 participants