EGU22-7943, updated on 28 Mar 2022
https://doi.org/10.5194/egusphere-egu22-7943
EGU General Assembly 2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

The International Data Centre infrasound processing system, a 25 years travel

Pierrick Mialle1 and the PTS colleagues*
Pierrick Mialle and the PTS colleagues
  • 1CTBTO, IDC, Vienna, Austria (pierrick.mialle@ctbto.org)
  • *A full list of authors appears at the end of the abstract

In 2001, when the first data from an International Monitoring System infrasound station started to arrive in near real-time at the International Data Centre (IDC), its infrasound processing system was in a premature state. The IDC embarked for a multi-year design and development of its dedicated processing system, which led to operational IDC automatic processing and interactive analysis systems in 2010. In the next twelve years the IDC produced over 40,000 infrasound events reviewed by expert analysts.
In an effort to continue advancing its methods, improving its automatic system and providing software packages to Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO) users, the IDC focused on several projects. First, the automatic system for the identification of valid signals was redesigned with the development of DTK-(G)PMCC (Progressive Multi-Channel Correlation), which is in IDC Operations and made available to CTBTO users within NDC-in-a-Box. And second, an infrasound model was developed for automatic waveform network processing software NET-VISA with an emphasis on the optimization of the network detection threshold by identifying ways to refine signal characterization methodology and association criteria.
Ongoing and future improvements of the IDC processing system are planned to further reduce analyst workload and improve the quality of IDC products.

PTS colleagues:

IDC/MDA, IDC/SA and IDC/APS colleagues

How to cite: Mialle, P. and the PTS colleagues: The International Data Centre infrasound processing system, a 25 years travel, EGU General Assembly 2022, Vienna, Austria, 23–27 May 2022, EGU22-7943, https://doi.org/10.5194/egusphere-egu22-7943, 2022.