5:15 PM - 7:15 PM
[MTT39-P04] Infrasound analysis via CTBTO
Keywords:Infrasound, sensitive Microbarograph, CTBT
The Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO) conducts trainings and workshops to improve the skills of analysis and exchange among National Data Center (NDC). This presentation will introduce the contents of the infrasound workshop and analysis training held in Indonesia in 2024, and the case where JWA (Japan Weather Association)’s infrasound analysis skills have improved through the Infrasound Technology Workshop (ITW) 2022.
The infrasound workshop and analysis training held in Indonesia in 2024 targeted the SEAPFE regional NDC. It was organized by CTBTO and co-hosted by the Government of the Republic of Indonesia and the Indonesian Agency for Meteorological, Climatological, and Geophysics (BMKG).
In the workshop, NDC staff introduced infrasound and seismic analysis of their own countries. In the analysis training, NDC staff learned the origin and feature of typical infrasound signals, as well as how to use the infrasound analysis tool “DTK-GPMCC” which is also used by JWA.
At ITW2022, the Romanian NDC introduced a method for classifying environmental noise. Using this method, we attempted to detect environmental noise at the infrasound observation station in Isumi City. For nuclear test monitoring, it is important to understand environmental noise because natural phenomena observed daily and anthropogenic infrasound, excluding nuclear explosions, are considered noise. The Isumi station is part of CTBT’s International Monitoring System (IMS) and is maintained by JWA.
As a result, the direction of artificial sound sources became clear, and we detected some interesting features of natural sound sources.
The infrasound workshop and analysis training held in Indonesia in 2024 targeted the SEAPFE regional NDC. It was organized by CTBTO and co-hosted by the Government of the Republic of Indonesia and the Indonesian Agency for Meteorological, Climatological, and Geophysics (BMKG).
In the workshop, NDC staff introduced infrasound and seismic analysis of their own countries. In the analysis training, NDC staff learned the origin and feature of typical infrasound signals, as well as how to use the infrasound analysis tool “DTK-GPMCC” which is also used by JWA.
At ITW2022, the Romanian NDC introduced a method for classifying environmental noise. Using this method, we attempted to detect environmental noise at the infrasound observation station in Isumi City. For nuclear test monitoring, it is important to understand environmental noise because natural phenomena observed daily and anthropogenic infrasound, excluding nuclear explosions, are considered noise. The Isumi station is part of CTBT’s International Monitoring System (IMS) and is maintained by JWA.
As a result, the direction of artificial sound sources became clear, and we detected some interesting features of natural sound sources.