1. Scripps Institution of Oceanography University of California, San Diego La Jolla CA USA
2. Cooperative Institute for Marine and Atmospheric Studies University of Miami and NOAA/AOML/Physical Oceanography Division Miami FL USA
3. Laboratoire d'Etudes en Géophysique et Océanographie Spatiales Université de Toulouse, CNES, CNRS, IRD, UPS Toulouse France