Tsunami early warning by realtime transfer of seafloor electromagnetic data

2016 Fiscal Year Final Research Report

• Project/Area Number: 26282101
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Natural disaster / Disaster prevention science
• Research Institution: Kyoto University
• Principal Investigator: Toh Hiroaki 京都大学, 理学(系)研究科(研究院), 准教授 (40207519)
• Co-Investigator(Kenkyū-buntansha): 後藤 忠徳 京都大学, 工学(系)研究科(研究院), 准教授 (90303685) ; 南 拓人 京都大学, 理学(系)研究科(研究院), 研究員 (90756496)
• Research Collaborator: IMAI Kazumasa ; OHTSUKI Keiji ; NAKAMICHI Akika ; YAMAZAKI Akira ; KAWASHIMA Issei ; IWASHITA Kohdai
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 津波 / 電磁場 / ダイナモ作用 / 波高予測 / 伝搬予測

Outline of Final Research Achievements

The tsunami is a dreadful natural disaster that can give enormous damage to human society. In this research, we conducted a geomagnetic study that leads to their prevention / mitigation. We aimed to apply to the existing tsunami early warning system the fact that observable electromagnetic fields are generated by coupling of tsunami particle motions of the conductive seawater with the Earth's main magnetic field. As a result, the following two were proved probable by both actual observation and three-dimensional numerical simulation: (1) real-time transfer of seafloor electromagnetic data for tsunami early warning purpose, (2) improvement of the existing tsunami early warning system by adding information from the tsunami-generated electromagnetic fields.

Free Research Field

地球電磁気学