1. Centre for Ocean and Atmospheric Science, School of Environmental Sciences, University of East Anglia, Norwich NR4 7TJ, UK
2. Department of Earth, Ocean and Atmospheric Science, Florida State University, Tallahassee, FL 32306, USA
3. LEMAR/IUEM, UMR 6539 CNRS-UBO-IRD-IFREMER, Place Nicolas Copernic, Technopôle Brest Iroise, 29280 Plouzané, France
4. Department of Earth Sciences, Stellenbosch University, 7600 Stellenbosch, South Africa
5. Department of Marine Science, University of Southern Mississippi, Stennis Space Center, Kiln, MS 39529, USA
6. Applied Research Center, Florida International University, 10555 West Flagler St., Engineering Center Suite 2100, Miami, FL 33174, USA
7. GEOMAR, Helmholtz Centre for Ocean Research Kiel, 1–3 Wischhofstrasse, Kiel 24148, Germany
8. School of Geography Earth and Environmental Sciences, University of Birmingham, Birmingham, UK
9. Laboratoire des Sciences du Climat et de l'Environnement (LSCE), IPSL, CEA–Orme des Merisiers, 91191 Gif-sur-Yvette, France