作者机构:CAS Key Laboratory of Geospace Environment, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026
相关基金:Supported by the National Science Foundation of China(41474125,41331067,41421063); 973 Program(2013CBA01503); Key Research Program of Frontier Sciences,CAS(QYZDJ-SSW-DQC010)