1. College of Surveying and Geo-informatics, North China University of Water Resources and Electric Power, Zhengzhou 450045, China
2. Collaborative Innovation Center of Water Security for Water Source Region of Mid-line of South-to-North Diversion Project of Henan Province, Nanyang Normal University, Nanyang, China
3. Chushandian Reservoir Construction Administration of Henan Province, Department of Water Resources of Henan Province, Xinyang, China