1. Zhejiang Climate Center, Zhejiang Meteorological Bureau, Hangzhou 310017, China
2. Laboratory for Climate Studies, National Climate Center, China Meteorological Administration, Beijing 100081, China
3. Hydrology and Water Resources Survey Bureau of Liaoning Province, Shenyang 110003, China
4. College of Atmospheric Sciences, Lanzhou University, Lanzhou 730000, China
5. Meteorological Bureau of Ankang, Ankang 725000, China