South China Sea Information Center of State Oceanic Administration;
Guangzhou 510310;
China;
State Key Laboratory of Tropical Oceanography;
South China Sea Institute of Oceanology;
Chinese Academy of Sciences;
Guangzhou 510301;
China;
University of Chinese Academy of Sciences;
Beijing 100049;
China;
Institution of South China Sea Ecology and Environmental Engineering;
Chinese Academy of Sciences;
Guangzhou 510301;
China;
Internal; wave; beam; parametric; subharmonic; instability; internal; wave; energetics; tide-topography; interaction;