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) 17:15 〜 18:30 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-P01] Overview of the Japanese National Data Centre-1 (NDC-1)

*江村 亮平1乙津 孝之1坂本 豊実1岩田 総司1藤井 孝成1野上 麻美1岩國 真紀子1本橋 昌志1 (1.一般財団法人 日本気象協会)

キーワード:包括的核実験禁止条約、国内データセンター、地震動、微気圧振動、波形解析、事象識別解析

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 seismic and infrasound stations in Japan. There are two main roles of NDC-1: 1: technical adviser to the national authority (MOFA) from the view point of seismic and infrasound analysis, and 2: station operator of IMS stations (PS22, AS51-AS55 and IS30). And there are three main activities of NDC-1 as technical adviser: 1: if the suspicious event would occur, we would try to clarify its characteristics and report its results to the MOFA via the secretariat, 2: we sometimes do 1-week integrated operational exercise hosted by the secretariat on the assumption that the situation would be, and 3: we are paying efforts to improve our analytical capability of SHI data and explanation capability by using the national exercises.

This poster introduces the integrated operational exercise and the event discrimination analysis results of the 6th DPRK nuclear test as of the real analysis results in particular.

The integrated operational exercise is conducted by NDCs, integrating the data and analysis addressed by NDCs, and reporting to the CTBT National Operating System of Japan. These exercises have been implemented 27 times since 2009 and 30areas were selected for regions and countries. And our event discrimination analysis takes mainly three methods: 1: regional P/S ratio, 2: P/S spectral ratio and 3: mb: Ms.