[P-EM16] 大気圏・電離圏

[PEM16-02] 地磁気変動から推定する津波電離圏ホールのダイナミクス

*冨田 悠登¹、金谷 辰耶¹、鴨川 仁¹、上嶋 誠² (1.東京学芸大学教育学部物理学科、2.東京大学地震研究所)

キーワード：磁気、地震、津波、津波電離圏ホール

Approximately several minutes after the occurrence of the mainshock of the M9.0 off the Pacific coast of Tohoku Earthquake on 11 March 2011, various geo-electromagnetic phenomena was in Japan and even in the magnetic conjugate point of Japan (i.e. Australia) through magnetic field lines as a field align current. In this paper, we show electromagnetic phenomena after the 2011Tohoku earthquake in the ionosphere such as tsunami ionospheric hole, seismo-field align current, Rayleigh-wave-induced ionospheric arc current, and seimic- ionospheric ring current (SRIC). SRIC was highly related to tsunami ionospheric hole observed by GPS-TEC.