作者机构:[1]Key Laboratory of Earth and Planetary Physics, Instituteof Geology and Geophysics, Chinese Academy of Sciences,Beijing 100029, China
相关基金:This work was supported by the Thousand Young Talents Program of China, the National Basic Research Pro- gram of China (2011CB811405), and the National Natural Science Foundation of China (41321003, 41174136, 41174138). Special thanks should be given to Digisonde Global Ionospheric Observatory (http://giro.uml.edu/) for providing the iouosonde data.