Department of Earth and Space Sciences;
University of Science and Technology of China;
Hefei 230026 LASG;
Institute of Atmospheric Physics;
Chinese Academy of Sciences;
Beijing 100029;
LASG;
Institute of Atmospheric Physics;
Chinese Academy of Sciences;
Beijing 100029;
Department of Meteorology;
Florida State University;
USA;
School for Continuing Education;
University of Science and Technology of China;
Hefei 230026;