1. Laboratoire d'Etudes en Géophysique et Océanographie Spatiale (LEGOS), CNRS/IRD/UPS/CNESToulouse France
2. Department of OceanographyMARE Institute, LMI ICEMASA, University of Cape Town Cape Town South Africa
3. Nansen‐Tutu Centre, Marine Research Institute, Department of Oceanography, University of Cape TownCape Town South Africa