Rachel Diamond, University of Cambridge, Cambridge, United Kingdom; NERC British Antarctic Survey, Cambridge, United Kingdom, Louise C Sime, Ice Dynamics and Paleoclimate, British Antarctic Survey, Cambridge, United Kingdom, David Schroeder, University of Reading, Centre for Polar Observation and Modelling, Department of Meteorology, Reading, United Kingdom, Laura C Jackson, UK Met Office, Exeter, United Kingdom, Paul Holland, British Antarctic Survey, Cambridge, United Kingdom, Eduardo Alastrué de Asenjo, University of Hamburg, Hamburg, Germany, Katinka Bellomo, Università di Padova, Padova, Italy, Gokhan Danabasoglu, National Center for Atmospheric Research, Climate and Global Dynamics, Boulder, United States, Aixue Hu, NCAR, Boulder, United States, Johann Jungclaus, Max Planck Institute for Meteorology, Hamburg, Germany, Marisa Montoya, Complutense University of Madrid, Madrid, Spain, Virna Loana Meccia, CNR Institute of Atmospheric Sciences and Climate, Bologna, Italy, Oleg Saenko, Canadian Centre for Climate Modelling and Analysis, Victoria, BC, Canada and Didier Swingedouw, University Bordeaux, CNRS, Bordeaux INP, EPOC, UMR 5805, Pessac, France