College of Earth and Planetary Sciences University of Chinese Academy of Sciences Beijing 100049 P.R.China;
Key Laboratory of Computational Geodynamics University of Chinese Academy of Sciences Beijing 100049 P.R.China;
Zhanjiang Meteorological Bureau Guangdong 524000 P.R.China;
College of Earth and Planetary Sciences University of Chinese Academy of Sciences Beijing 100049 P.R.China;
College of Earth and Planetary Sciences University of Chinese Academy of Sciences Beijing 100049 P.R.China;