19–23 Jun 2023
Hofburg Palace & Online
Europe/Vienna timezone

Scheduled Calibration of IMS infrasound stations

20 Jun 2023, 12:05
Prinz Eugen Saal

Prinz Eugen Saal

PTS talk PTS talks PTS session 1


Yacine Sid Ahmed (CTBTO Preparatory Commission)


Calibration activities for infrasound stations of the International Monitoring System (IMS) are a requirement of the Operational Manual for Infrasound Monitoring and the International Exchange of Infrasound Data. Until 2011, significant technical and scientific challenges prevented full compliance with these requirements. This included the absence of available techniques to characterize responses in operational conditions. To address these challenges, the PTS coordinates the development of a detailed infrasound technology roadmap, and works together with the scientific, metrology, and sensor manufacturing communities. This collaboration led to the deployment of calibration capabilities at infrasound stations of the IMS, starting with a first station in 2015. This presentation illustrates the Scheduled Calibration process as currently defined at the PTS for infrasound stations, past progress, and current challenges. As of 2022, calibration capabilities have been rolled out successfully at 34% of the certified infrasound IMS stations (18 stations). A dedicated software (CalxPy) was also designed to support the calibration process for all stations having calibration capability in a centralized manner in Vienna. These calibration results are reported since 2019 to Member States.

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First presentaiton of infrasound calibraton results computed and interpreted in a centralized manner in Vienna to a wider audience.

E-mail [email protected]
Oral preference format in-person

Primary author

Yacine Sid Ahmed (CTBTO Preparatory Commission)


Mr Alfred Kramer (CTBTO Preparatory Commission) Mr Benoit Doury (CTBTO Preparatory Commission) Ms Ichrak Ketata (CTBTO Preparatory Commission)

Presentation materials