He Huaxiang¹, Aiqi Chen², Mingwan Yin³, Zhenzhen Ma¹, Jinjun You³, Xinmin Xie¹, Zhizhang Wang⁴ and Qiang An³, (1)IWHR Institute of Water Resources and Hydropower Research, CAS, Beijing, China, (2)China Agricultural University, College of Land Science and Technology, Beijing, China, (3)China Institute of Water Resources and Hydropower Research, Beijing, China, (4)Information technology department, China Institute of Water Resources and Hydropower Research, Beijing, China