1. College of Geodesy and Geomatics, Shandong University of Science and Technology, Qingdao, People’s Republic of China
2. Key Laboratory of Ocean Geomatics, Ministry of Natural Resources of China, Qingdao, People’s Republic of China
3. South China Sea Information Center, State Oceanic Administration, Guangzhou, People’s Republic of China
4. Zhejiang Institute of Hydraulics & Estuary (Zhejiang Institute of Marine Planning and Design), Hangzhou, People’s Republic of China