CTBT: Science and Technology Conference 2025 - SnT2025

Session

O3.1 Seismic, Hydroacoustic and Infrasound Technologies and Applications

O3.1

9 Sept 2025, 13:30

Prinz Eugen Saal

Conveners

O3.1 Seismic, Hydroacoustic and Infrasound Technologies and Applications

• Anooshiravan Ansari (International Institute of Earthquake Engineering and Seismology (IIEES))
• Benoit Doury (CTBTO Preparatory Commission)

722. A strategy for the development of metrology to enhance the sustainment of the seismic and infrasound component of the IMS network (O3.1-722)

Mr Richard Barham (Acoustic Sensor Networks Limited)

T3.1 Seismic, Hydroacoustic and Infrasound Technologies and Applications

Oral

With the majority of the Comprehensive Nuclear-Test-Ban (CTBT) International Monitoring System (IMS) network now fully operational, management of the network is undergoing a significant transition from establishing capability towards sustainment. The challenge is not limited to maintaining these capabilities, but extends to optimising the IMS network performance and providing the best...

761. Exploring the Potential of a Barometer as a Transfer Standard for Infrasound Calibration (O3.1-761)

Dr Dominique Rodrigues (Laboratoire National de Métrologie et d'Essais (LNE))

T3.1 Seismic, Hydroacoustic and Infrasound Technologies and Applications

Oral

Confidence in the quality of infrasound measurements is essential for meeting operational requirements in the detection and assessment of geophysical events. This confidence is partly established through accurate calibration of the instrumentation, encompassing the entire measurement process, from laboratory calibration to field deployment and calibration. In this process, transfer standards...

814. Field Calibration of Weak Motion Seismometers using Strong Motion Accelerometers as Reference (O3.1-814)

Nick Ackerley (Canadian Hazards Information Service, Natural Resources Canada)

T3.1 Seismic, Hydroacoustic and Infrasound Technologies and Applications

Oral

Traceable calibration of broadband weak-motion seismometers is an ongoing challenge. In a specialized laboratory, verification of the response up to the upper corner frequency is achievable, but at a typical lower corner period accuracy is limited by parasitic tilts. Since such primary calibrations are not practical in the field, it has been proposed instead to use lab-calibrated reference...

361. Infrasound uncertainty propagation: ensuring traceability from the laboratory to the field (O3.1-361)

Mr Samuel Kristoffersen (Commissariat à l’énergie atomique et aux énergies alternatives (CEA))

T3.1 Seismic, Hydroacoustic and Infrasound Technologies and Applications

Oral

Confidence in the quality of infrasound measurements is at the heart of the operational requirements linked to the detection and assessment of geophysical and industrial events. The entire measurement process, from laboratory calibration to the field, must be considered to estimate the confidence level of the measurement through the associated uncertainty. As part of the European Infra-AUV...

256. Pisces updates for integrating CSS3.0-like database tables and files into ObsPy workflows (O3.1-256)

Ms Christine Gammans (Los Alamos National Laboratory (LANL))

T3.1 Seismic, Hydroacoustic and Infrasound Technologies and Applications

Oral

Pisces (https://lanl-seismoacoustics.github.io/pisces/) is a python-based data management library designed to facilitate interaction with seismological databases utilizing CSS3.0-like schemas. Pisces leverages existing free and open source technologies maintained by the wider seismological community to incorporate information from these databases into python workflows. Recent additions to...