1. a Laboratoire d'Océanographie Spatiale (LOS) , Institut Français pour la Recheche et l'Exploitation de la Mer (IFREMER) , France
2. b Department of Atmospheric and Oceanic Science , University of Maryland , College Park , MD , USA
3. c Rosenstiel School of Marine and Atmospheric Science , University of Miami , Miami , FL , USA
4. d Department of Physical and Environmental Sciences , Texas A&M University-Corpus Christi , Corpus Christi , TX , USA
5. e Laboratoire de la Physique des Océans (LPO) , UMR 6523 CNRS-Ifremer-IRD-UBO , France