Laura C Jackson, Met Office, Exeter, 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, Virna Loana Meccia, CNR Institute of Atmospheric Sciences and Climate, Bologna, Italy, Oleg Saenko, Canadian Centre for Climate Modelling and Analysis, Victoria, BC, Canada, Andrew Shao, University of Victoria, Victoria, BC, Canada and Didier Swingedouw, University Bordeaux, CNRS, Bordeaux INP, EPOC, UMR 5805, Pessac, France