1. College of Hydrology and Water ResourcesHohai University Nanjing China
2. Division of Hydrologic SciencesDesert Research Institute Las Vegas NV USA
3. Liaoning Administration for Hydrology and Water Resources Investigation Shenyang China
4. Liaoning Administration for Chaihe Reservoir Tieling China
5. Bei Fang Investigation, Design and Research CO.LTD Tianjin China