Xiaojing Li¹, Youmin Tang², Michael J McPhaden³, Lei Zhou⁴, Yi Li⁵, Xunshu Song⁶, Tao Lian⁷ and Dake Chen¹, (1)Second Institute of Oceanography, Ministry of Natural Resources, State Key Laboratory of Satellite Ocean Environment Dynamics, Hangzhou, China, (2)University of Northern British Columbia, Prince George, BC, Canada, (3)NOAA/PMEL, Seattle, United States, (4)Shanghai Jiao Tong University, School of Oceanography, Shanghai, China, (5)Hohai University, Nanjing, China, (6)Second Institute of Oceanography, Hangzhou, China, (7)Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou, China