[S-EM20] Electric and Electromagnetic survey technologies and the scientific achievements: Recent advances

convener:Kiyoshi Baba(Earthquake Research Institute, The University of Tokyo), Tada-nori Goto(Graduate School of Life Science, University of Hyogo), Toshihiro Uchida(National Institute of Advanced Industrial Science and Technology), Toru Mogi(Faculty of Science, Tokyo Institute of Technology)

Detailed subsurface images by electric and electromagnetic (EM) surveys are indispensable to investigate the electrical features of the interior of the Earth both for academic and commercial purposes. The technologies, techniques, and methods for surveys, data analysis, and interpretation involve many common aspects that should be solved by scientists and engineers in cooperation since the studies cover a broad range of targets in various spatial-time scales and places on land and seafloor, e.g., natural resource explorations, environment and hazard evaluations, and the crustal and mantle tectonics and dynamics. And the knowledge should be shared in the international community for further development of this field. The session invites papers on recent advances in the electric and EM survey technologies and techniques including instrumentations, the data analysis methods including modeling, inversion, and imaging techniques, and the scientific achievements including novel way of interpretations, from the world.

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Introduction (2:15 PM - 2:20 PM)

[SEM20-01] Case studies on ERT monitoring in Taiwan

★Invited Papers

*Chien-Chih Chen^1,2 (1.Department of Earth Sciences, National Central University, Taoyuan, Taiwan, 2.Earthquake-Disaster and Risk Evaluation and Management Center, National Central University, Taoyuan, Taiwan)

[SEM20-02] Carbonate Imaging with Magnetotellurics in a Shallow-Water Environment, South Yellow Sea, China

*Shuangmin Duan¹, Yuguo Li¹, Jianxin Pei¹, Tiehu Zhao², Zhiqiang Wu², Bo Han³, Xinsheng Yu¹, Lanjun Liu¹, Jialin Chen¹ (1.Ocean Univ. of China, 2.Qingdao Inst. of Marine Geology, 3.China Univ. of Geosciences (Wuhan))

[SEM20-03] Three-dimensional Electrical Resistivity Structure of Tokachidake Volcano Revealed by GREATEM Survey Data

*Sabry Abdallah¹, Toru Mogi¹, Yusuke Yamaya², Takashi Hashimoto², Makoto Murakami², Akira Jomori³, Youichi Yuuki⁴, Hideshi Kaieda⁵, Hisatoshi Ito⁵ (1.Earthquake and Volcano Research Center Graduate School of Environmental Studies, Nagoya University, 2.Institute of Seismology and Volcanology, Hokkaido Univ., 3.Neoscience co., 4.Oyo,Co., 5.CRIEPI)

[SEM20-04] Anatomy of Active Volcanic Edifice at the Kusatsu-Shirane Volcano, Japan, by Magnetotellurics: Hydrothermal Implications for Volcanic Unrests

Kuo Hsuan Tseng¹, *Yasuo Ogawa¹, Nurhasan Nurhasan¹, Sabri Bülent Tank¹, Yoshimori Honkura¹, Naoto Ujihara¹, Akihiko Terada¹, Yoshiya Usui¹, Wataru Kanda¹ (1.Volcanic Fluid Research Center, School of Science, Tokyo Institute of Technology)

[SEM20-05] Global electrical conductivity model of Miyake-jima: insights into its hydrothermal and magmatic system

*Marceau Gresse¹, Takao Koyama¹, Makoto Ueshima¹, Yuichi Morita¹, Yoichi Sasai², Jacques Zlotnicki³, Tsuneo Ishido⁴, Hideaki Hase⁵, Wataru Kanda⁶, Koki Aizawa⁷, Derek Weller¹, Tawat Rung-Arunwan⁸, Yasuo Matsunaga⁶, Hideki Ueda⁹, Maki Hata¹, Yusuke Yamaya¹⁰ (1.Earthquake Research Institute, The University of Tokyo, Tokyo, Japan, 2.Earthquake Prediction Research Centre, Tokai University, Shizuoka, Japan, 3.CNRS, OPGC-UMR6524, Aubière, France, 4.Geological Survey of Japan, AIST, Tsukuba Ibaraki, Japan, 5.Geothermal Energy Research & Development Co., Ltd., Tokyo, Japan, 6.Tokyo Institute of Technology School of Science, Tokyo, Japan, 7.Institute of Seismology and Volcanology, Faculty of Science, Kyushu University, Fukuoka, Japan, 8.Curl-E Geophysics Co., Ltd., Thailand, 9.National Research Institute for Earth Science and Disaster Resilience, Tsukuba, Japan, 10.Renewable Energy Research Center, National Institute of Advanced Industrial Science and Technology (AIST), Fukushima, Japan)