South China Sea Marine Engineering Surveying Center;
State Oceanic Administration;
Guangzhou 510300;
China;
Key Laboratory of Ocean Circulation and Waves;
Institute of Oceanology;
Chinese Academy of Sciences;
Qingdao 266071;
China;
Graduate School of Chinese Academy of Sciences;
Beijing 100049;
China;
Graduate School of Chinese Academy of Sciences;
Beijing 100049;
China;