Heather Jaques, National Oceanography Center, Southampton, Southampton, United Kingdom, Louis Clément, National Oceanography Centre, Southampton, United Kingdom, Eleanor Frajka-Williams, University of Hamburg, Hamburg, Germany, Alberto Naveira Garabato, University of Southampton, School of Ocean and Earth Science, Southampton, United Kingdom and Marilena Oltmanns, Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Bremerhaven, Bremerhaven, Germany