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Overview of EM-ACROSS and its development

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中島 崇裕; 熊澤 峰夫; 茂田 直孝; 國友 孝洋; 長尾 大道; 松本 裕史*

Nakajima, Takahiro; Kumazawa, Mineo; Shigeta, Naotaka; Kunitomo, Takahiro; Nagao, Hiromichi; Matsumoto, Hiroshi*

電磁波によって地下を見る方法としての電磁アクロスを紹介する。弾性波の場合と異なり、電磁波には周波数によって拡散的に振る舞ったり波動的に振る舞うという特徴がある。電磁アクロスでの探査の流れと現在東濃地科学センターで行っている開発との関係を示し、最後に地殻内部の探査可能性について言及する。

We introduce a new observation system named EM-ACROSS (Electro-Magnetic Accurately Controlled Routinely Operated Signal System) for a monitoring the electrical state in the ground. Electromagnetic field has different feature from seismic wave, in a sense that electromagnetic field behaves not only as waves but also diffusion. We describe the overview of EM-ACROSS and the progress of its development at Tono Geoscience Center. We also note the possibility of the active monitoring of the crust using electromagnetic field.

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