1. Remote Sensing Division; Naval Research Laboratory; Washington District of Columbia USA
2. Royal Netherlands Meteorological Institute; De Bilt Netherlands
3. Fisheries and Oceans Canada, Bedford Institute of Oceanography; Dartmouth Nova Scotia Canada
4. School of Marine Sciences, Nanjing University of Information Science and Technology; Nanjing China
5. Key Laboratory of Computational Geodynamics, Chinese Academy of Sciences; University of Chinese Academy of Sciences; Beijing China
6. Institute of Oceanology, Chinese Academy of Sciences; Qingdao China