Statistical Analysis of Pre-seismic Ionospheric Electron Density Anomalies Using Ionosonde Data during 1958-2017,Over Japan


Sanaka Saito1, Chie Yoshino2, Katsumi Hattori2 and Peng Han3, (1)Chiba University, Chiba, Japan, (2)Graduate School of Science, Chiba University, Chiba, Japan, (3)Southern University of Science and Technology, Department of Earth and Space Sciences, Shenzhen, China