JpGU-AGU Joint Meeting 2017

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[JJ] Oral

M (Multidisciplinary and Interdisciplinary) » M-IS Intersection

[M-IS12] [JJ] Electromagnetic phenomena associated with seismic and volcanic activities

Thu. May 25, 2017 1:45 PM - 3:15 PM 103 (International Conference Hall 1F)

convener:Tetsuya Kodama(Research Unit I, Research and Development Directorate, Japan Space Exploration Agency), Yasuhide Hobara(Graduate School of Information and Engineering Department of Communication Engineering and Informatics, The University of Electro-Communications), Toshiyasu Nagao(Institute of Oceanic Research and development, Tokai University), Chairperson:Toshiyasu Nagao(Institute of Oceanic Research and development, Tokai University), Chairperson:Tetsuya Kodama(Research Unit I, Research and Development Directorate, Japan Space Exploration Agency)

2:45 PM - 3:00 PM

[MIS12-05] Ionospheric perturbations due to earthquakes observed simultaneously by subionospheric VLF/LF wave and GPS TEC measurements

*hendy SANTOSA1,2, Yasuhide Hobara1,3,4, Takuo Tsuda1,3,4, Satya Srinivas4 (1.Department of Computer and Network Engineering, The University of Electro-Communications, Tokyo, Japan, 2.Department of Electrical Engineering, Bengkulu University, Bengkulu, Indonesia, 3.Earth Environment Research Station, The University of Electro-Communications, Tokyo, Japan, 4.Center for Space Science and Radio Engineering, The University of Electro-Communications, Tokyo, Japan)

Keywords:VLF subionospheric waves, GPS TEC, very low frequency, earthquake, gravity wave, travelling ionospheric disturbance

The Gravity Waves (GWs) produced by an earthquake propagate upward from the epicenter to the ionosphere. The GWs interact with the ionospheric plasma and generate the density perturbations which can be detected by different radio remote sensing techniques. In this paper, we study the vertical coupling between the lithosphere-atmosphere-ionosphere (LAI) coupling through signature of IGW waves generated from major seismic activities observed in different altitudes (D and F layers) by subionospheric VLF/LF waves and GPS TEC measurements. We will demonstrate the Travelling ionospheric disturbances (TIDs) induced by major earthquakes observed in the both ionospheric altitudes and deduce their propagation characteristics.