Anny A Cazenave¹, Chunxue Yang², Marie Bouih³, Dr. Andrea Storto, PhD², Jianli Chen⁴, William Llovel⁵, Karina von Schuckmann⁶ and Lancelot Leclercq⁷, (1)Université de Toulouse, LEGOS (CNES/CNRS/IRD/UT), Toulouse, France, (2)CNR Institute for Marine Science, Rome, Italy, (3)Magellium, Toulouse, France, (4)Hong Kong Polytechnic University, Department of Land Surveying and Geo-Informatics, Hong Kong, Hong Kong, (5)Laboratoire d'Océanographie Physique et Spatiale, Univ Brest/CNRS/Ifremer/IRD, Plouzané, France, (6)Mercator Ocean International, Toulouse, France, (7)Université de Toulouse, LEGOS (CNES/CNRS/IRD/UT3), Toulouse, France