1. Jet Propulsion Laboratory California Institute of Technology Pasadena CA USA
2. Royal NIOZ Texel The Netherlands
3. Department of Earth Sciences Vrije Universiteit Amsterdam Amsterdam The Netherlands
4. Marine Biogeochemistry GEOMAR Helmholtz Centre for Ocean Research Kiel Kiel Germany
5. Lamont Doherty Earth Observatory Columbia University Palisades NY USA
6. Alfred‐Wegener‐Institut Helmholtz‐Zentrum für Polar und Meeresforschung Bremerhaven Germany
7. Department of Biogeochemical Integration Max Planck Institute for Biogeochemistry Jena Germany
8. College of Life and Environmental Sciences University of Exeter Exeter UK
9. Global Climate Observing System World Meteorological Organization Geneva Switzerland