Yohan Ruprich-Robert¹, Eduardo Morenao-Chamarro¹, Alessio Bellucci², Christophe Cassou³, Frederic S Castruccio⁴, Paolo Davini⁵, Guillaume Gastineau⁶, Katja Lohmann⁷, Jorge Lopez-Parages³, Dario Nicoli⁸, Said Qasmi⁹, Christopher Roberts¹⁰, Doug M Smith¹¹, Susanna Corti¹², Gokhan Danabasoglu⁴, Belen Rodriguez-Fonseca¹³, Teresa Losada Doval¹⁴, Marta Martín-Rey¹⁵, Rym Msadek¹⁶ and Jon Robson¹⁷, (1)Barcelona Supercomputing Center, Barcelona, Spain, (2)Fondazione CMCC, Bologna, Italy, (3)CERFACS European Centre for Research and Advanced Training in Scientific Computation, Toulouse Cedex 01, France, (4)National Center for Atmospheric Research, Boulder, CO, United States, (5)CNR Institute of Atmospheric Sciences and Climate, Torino, Italy, (6)LOCEAN-IPSL, Paris cedex 05, France, (7)Max Planck Institute for Meteorology, Hamburg, Germany, (8)Euro-Mediterranean Center on Climate Change, Naples, Italy, (9)Meteo-France, Toulouse, France, (10)ECMWF, Reading, United Kingdom, (11)Met Office Hadley center for Climate Change, Exeter, United Kingdom, (12)CNR Institute of Atmospheric Sciences and Climate, Bologna, Italy, (13)Complutense University of Madrid, Facultad de Fisicas, Madrid, Spain, (14)Complutense University of Madrid, Madrid, Spain, (15)Organization Not Listed, Washington, DC, United States, (16)CNRS/CERFACS, Toulouse, France, (17)University of Reading, National Centre for Atmospheric Science, Reading, United Kingdom