1. First Institute of Oceanography, Ministry of Natural Resources, Shandong Province, China;
2. Jiangsu Provincial Key Laboratory of Geographic Information Science and Technology, Collaborative Innovation Center of South China Sea Studies, Nanjing University, Nanjing Province, China;
3. Ocean Remote Sensing Institute, Ocean University of China, Shandong Province, China;
4. Key Laboratory of Surveying and Mapping Technology on Island and Reef, National Administration of Surveying, Mapping and Geoinfomation, Shandong Province, China