[M-TT05] New phase of GPS/GNSS application as an integrated earth observation system

★ [MTT05-07] GNSS ionospheric anomalies following recent big earthquakes: Results and statistical analysis

*Shuanggen JIN¹、Rui JIN¹ (1.Shanghai Astronomical Observatory, Chinese Academy of Sciences)

キーワード：Seismo-ionosphere, TEC, Earthquake, GNSS

Up to now, it is still difficult to well understand and predict Earthquake from traditional seismometer and space geodetic deformation measurements. Ionospheric disturbances following the earthquake may provide new insights. In this paper, GNSS seismo-ionospheric anomalies are presented following recent bigger earthquakes, e.g., 2008 Mw 8.0 Wenchuan (China) earthquake, 2011 Mw 9.1 Tohoku (Japan) Earthquake and 2011 Mw 7.2 Van (Turkey) earthquake. Significant pre-seismic, co-seismic and post-seismic ionospheric disturbances are observed with about 0.2~0.5TECU from continuous GPS measurements. Furthermore, different seismo-ionospheric behaviors and patterns are presented and discussed as well as statistic analysis.