1. Centre for Ocean and Atmospheric Sciences, School of Environmental Sciences; University of East Anglia; Norwich UK
2. British Antarctic Survey; Cambridge UK
3. National Oceanography Centre; Southampton UK
4. National Oceanography Centre; University of Southampton; Southampton UK
5. Mediterranean Institute of Oceanography, Aix-Marseille University, CNRS/INSU, IRD, MIO, UM 110; Marseille France
6. Institute of Biogeochemistry and Pollutant Dynamics; ETH Zürich; Zürich Switzerland
7. Scottish Association for Marine Science; Oban UK
8. College of Life and Environmental Sciences, University of Exeter; Exeter UK
9. Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research; Bremerhaven Germany
10. Graduate School of Oceanography; University of Rhode Island; Narragansett Rhode Island USA
11. Royal Netherlands Institute for Sea Research (NIOZ); Texel Netherlands
12. Centre for Energy and Environmental Sciences, Energy and Sustainability Research Institute Groningen; University of Groningen; Groningen Netherlands
13. International Ocean Carbon Coordination Project; Institute of Oceanology of Polish Academy of Sciences; Sopot Poland
14. Tyndall Centre for Climate Change Research; University of East Anglia; Norwich UK
15. Ocean Chemistry Division, Atlantic Oceanographic and Meteorological Laboratory; National Oceanic and Atmospheric Administration; Miami Florida USA