Japan Geoscience Union Meeting 2015

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International Session (Oral)

Symbol M (Multidisciplinary and Interdisciplinary) » M-TT Technology & Techniques

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

Wed. May 27, 2015 11:00 AM - 12:45 PM 203 (2F)

Convener:*Yoshinori Shoji(The Second Laboratory of Meteorological Satellite and Observation System Research Department, Meteorological Research Institute), Toshitaka Tsuda(Research Institute for Sustainable Humanosphere), Teruyuki Kato(Earthquake Prediction Research Center, Earthquake Research Institute, The University of Tokyo), Hiromu Seko(Meteorological Research Institute), Kazutoshi Sato(Japan Aerospace Exploration Agency), Chair:Kazutoshi Sato(Japan Aerospace Exploration Agency)

11:30 AM - 12:00 PM

★ [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)

Keywords: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.