Southwestern Research Institute of Water Transport Engineering;
Chongqing Jiaotong University;
Chongqing 400016;
China;
Key Laboratory of Virtual Geographic Environment (Ministry of Education);
Nanjing NormMUniversity;
Nanjing 210097;
China;
State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering;
Hohai University;
Nanjing 210098;
China;
Chongqing Education College;
Chongqing 400067;
China;