1. Key Laboratory of Earth and Planetary Physics, Institute of Geology and Geophysics Chinese Academy of Sciences Beijing China
2. Innovation Academy for Earth Science Chinese Academy of Sciences Beijing China
3. Beijing National Observatory of Space Environment, Institute of Geology and Geophysics Chinese Academy of Sciences Beijing China
4. College of Earth and Planetary Sciences University of the Chinese Academy of Sciences Beijing China
5. China Research Institute of Radiowave Propagation Qingdao China