日本地球惑星科学連合2019年大会

講演情報

[E] ポスター発表

セッション記号 M (領域外・複数領域) » M-AG 応用地球科学

[M-AG40] CTBT IMS Technologies for Detecting Nuclear Explosion and Their Applications to Earth Science

2019年5月30日(木) 15:30 〜 17:00 ポスター会場 (幕張メッセ国際展示場 8ホール)

コンビーナ:Nurcan Meral Ozel(Comprehensive Nuclear-Test-Ban Treaty Organization)、松本 浩幸(国立研究開発法人海洋研究開発機構)、直井 洋介(国立研究開発法人日本原子力研究開発機構)

[MAG40-P02] Challenging to utilize the infrasound technologies for civil and science application

*本橋 昌志1新井 伸夫2乙津 孝之1野上 麻美1岩國 真紀子1江村 亮平1 (1.一般財団法人日本気象協会、2.名古屋大学減災連携研究センター)

キーワード:Barometer、Infrasound、CTBT

Japan Weather Association (JWA) is working as the Comprehensive Nuclear-Test-Ban Treaty (CTBT) National Data Centre-1 (NDC-1) of Japan which is in charge of analysis on waveform data, operation and maintenance of infrasound and seismic stations in Japan.

We observed infrasonic signals two times from underground nuclear test in DPRK. From the perspective of nuclear test monitoring, it is important to analyze and study the infrasonic signals from a variety of natural phenomena to discriminate the signal from explosion. On the other hand, that kind of studies are also important for civil and science application of infrasound technologies. We also observed infrasound from large tsunami at the time of 2011 off the Pacific coast of Tohoku Earthquake. If the signals from such hazardous phenomena can be detected immediately, it will be very helpful to alert the occurrence of disaster or approach of hazardous phenomena.

This triggered us to build our own observation network in Japan. We are challenging to utilize the infrasound technologies for civil and science application as well as nuclear test monitoring.