Maike Sonnewald, Massachusetts Institute of Technology, Cambridge, MA, United States, A. J. George Nurser, National Oceanography Center, Liverpool, United Kingdom, Yvonne Firing, National Oceanography Center, Soton, Southampton, United Kingdom, Joel Hirschi, National Oceanography Centre, Southampton, United Kingdom, Andrew Coward, National Oceanography Center, Soton, Marine Systems Modelling, Southampton, United Kingdom and Patrick Hyder, Met. Office, Exeter, United Kingdom