1. Department of Oceanography University of Cape Town Cape Town South Africa
2. Southern Ocean Carbon and Climate Observatory (SOCCO), CSIR Cape Town South Africa
3. Department of Geosciences Princeton University Princeton New Jersey USA
4. Department of Earth Sciences Stellenbosch University Stellenbosch South Africa
5. Univ Brest, CNRS, IRD, Ifremer, LEMAR Plouzane France
6. Marine and Antarctic Research Centre for Innovation and Sustainability (MARIS), University of Cape Town Cape Town South Africa