1. School of Computer Science, China University of Geosciences , Wuhan 430074 , China
2. National Marine Data and Information Service , Tianjin 300171 , China
3. State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences , Wuhan 430074 , China
4. Hubei Key Laboratory of Intelligent Geo-Information Processing, China University of Geosciences , Wuhan 430074 , China
5. School of Information Engineering, Hebei GEO University , Shijiazhuang 050031 , China
6. Tianjin Center, China Geological Survey (North China Center for Geoscience Innovation) , Tianjin 300170 , China