Abhishek Savita, Institute for Marine and Antarctic Studies, University of Tasmania, Antarctic Climate and Ecosystems Cooperative Research Centre, Hobart, TAS, Australia, Catia M Domingues, Institute for Marine and Antarctic Studies, University of Tasmania, Antarctic Climate and Ecosystems Co-operative Research Centre, Hobart, Australia, Tim Boyer, NOAA/National Oceanographic Data Center, Washington, DC, United States, Simon A Good, Met Office, Exeter, United Kingdom, Viktor Vladimir Gouretski, University of Hamburg, Hamburg, Germany, Masayoshi Ishii, Japan Meteorological Agency, Tsukuba, Japan, Gregory C Johnson, Pacific Marine Environmental Laboratory, Seattle, WA, United States, John M Lyman, JIMAR/PMEL, Seattle, WA, United States, Josh K Willis, Jet Propulsion Laboratory, Pasadena, CA, United States, Didier Monselesan, CSIRO Oceans and Atmosphere, Hobart, TAS, Australia, John Antonov, University Corporation for Atmospheric Research, Boulder, CO, United States, Susan Anne Wijffels, Woods Hole Oceanographic Institution, Woods Hole, MA, United States, Rebecca Cowley, CSIRO Marine and Atmospheric Research, Hobart, Australia, Simon James Marsland, CSIRO Ocean and Atmospheric Research Aspendale, Aspendale, VIC, Australia, Peter Dobrohotoff, CSIRO Ocean and Atmospheric Research Aspendale, Ocean and Atmosphere, Melbourne, VIC, Australia, Will R Hobbs, University of Tasmania, Hobart, TAS, Australia and John Church, University of New South Wales, Climate Change Research Centre, Sydney, NSW, Australia