1. School of Software Engineering, Chengdu University of Information Technology, Chengdu 610225, China
2. Sichuan Province Engineering Technology Research Center of Support Software of Informatization Application, Chengdu 610225, China
3. School of Environment and Civil Engineering, Chengdu University of Technology, Chengdu 610059, China
4. Operational System Development and Maintenance Division, National Climate Center, Beijing 100081, China