日本地球惑星科学連合2022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-AG37] CTBT IMS Technologies for Detecting Nuclear Explosion and Their Applications to Earth Science

2022年5月31日(火) 11:00 〜 13:00 オンラインポスターZoom会場 (32) (Ch.32)

コンビーナ:Ozel Nurcan Meral(Comprehensive Nuclear-Test-Ban Treaty Organization)、コンビーナ:松本 浩幸(国立研究開発法人海洋研究開発機構)、コンビーナ:Metz Dirk(Japan Agency for Marine-Earth Science and Technology)、コンビーナ:直井 洋介(国立研究開発法人日本原子力研究開発機構)、座長:松本 浩幸(国立研究開発法人海洋研究開発機構)

11:00 〜 13:00

[MAG37-P01] Integrated Operational Exercise conducted under National Operation System of Japan under the Comprehensive Nuclear-Test-Ban Treaty (CTBT)

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

キーワード:CTBT、National Data Centre、Waveform analysis、Seismology

Japan Weather Association (JWA) is working as the National Data Centre-1 (NDC-1) of National Operation System of Japan under the Comprehensive Nuclear-Test-Ban Treaty (CTBT). NDC-1 is in charge of the waveform data analysis and the operation of seismic and infrasound stations in Japan as Station Operator (SO). NDC-1 has two main roles of 1: Collect and analyze waveform data related to seismic and infrasound waves and provide advice from a technical perspective and 2: Operation and maintenance of monitoring facilities of the International Monitoring System (IMS). There are 7 sites in Japan.
As a part of the provisional operation at NDC-1, in cooperation with the Secretariat and NDC-2, integrated operation exercises with continuous monitoring for one week are conducted a few times per year. The purpose is for the training of analysts, as well as catching up problems in automatic seismic wave monitoring system and manual analysis operation. It also aims to verify the analysis results by an automatic system and by analysts. Assuming nuclear test monitoring activity during the full operation of NDC-1, the test operation of the automatic seismic wave monitoring system is performed, and if an event occurrence is suggested within the preset monitoring target areas, the analyst closely examines the location and characteristics of the event (whether it is an explosion event).
We summarize exercises results, verify analysis results, and extract issues after ending integrated operational exercise. The results of studies on improvement and advancement of monitoring technology and analysis methods will be reflected in the various systems in operation. They will be verified through the next integrated operation exercise.
We will introduce these approaches and some comparisons of our analysis.