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

Scheduled Calibration of International Monitoring System Seismic, Hydroacoustic and Infrasound Stations

21 Jun 2023, 10:00


Board: 25
E-poster T4.1 Performance Evaluation of the International Monitoring System and On-Site Inspection and their Components Lightning talks: P2.5, P4.1, P4.2, P4.3


Yacine Sid Ahmed (CTBTO Preparatory Commission)


Scheduled calibration activities at International Monitoring System (IMS) seismic, hydroacoustic T phase and infrasound stations are part of the quality control requirements defined in the draft IMS seismic, hydroacoustic and infrasound Operational Manuals. Depending on the technology used, the approach for scheduled calibration can be different in some aspects. However, the overall objective remains the same: controlling the quality of IMS measurement systems by comparing their measured sensitivity and response against their nominal values defined at the time of station certification or revalidation. Results from calibration activities are reported by the CTBTO to States Signatories on a yearly basis. This presentation shows processes in place to implement calibration activities, current and historical calibration results, and associated progress and challenges.

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Presentation of QC activities that are key to contribute ensuring the quality of the delivered data products (i.e. the confidence in the data used from the IMS).

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

Primary authors

Yacine Sid Ahmed (CTBTO Preparatory Commission) Ms Paola Campus (CTBTO Preparatory Commission)

Presentation materials