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AGA: Arbeitsgruppe Physik und Abrüstung

AGA 4: Verification I – Comprehensive Test Ban Treaty

AGA 4.2: Hauptvortrag

Donnerstag, 13. März 2025, 12:00–13:00, HS HISKP

Progress and projects for CTBT monitoring at the German National Data Centre — •Stefanie Donner — Bundesanstalt für Geowissenschaften und Rohstoffe (BGR) Hannover

The Comprehensive Nuclear-Test-Ban Treaty (CTBT) bans all nuclear explosions underground, in the atmosphere, and under water. The International Monitoring System (IMS) has been established, equipped with sensors for three geophysical waveform technologies: seismology, hydroacoustics, and infrasound (SHI). A fourth technology monitors particulate radionuclides and radioactive noble gases in the atmosphere, supported by atmospheric transport modelling to connect possible detections with potential source.

BGR is the National Data Centre (NDC) for the CTBT in Germany. It cooperates closely with the Bundesamt für Strahlenschutz which operates the radionuclide station at Schauinsland. The NDC sustains own stations as part of the IMS, supports the International Data Centre in Vienna, and conducts research and development projects to support the CTBT.

This talk provides an overview about the structures and processes to globally monitor the complicance with the CTBT. It further provides insights into recent activities and projects of the German NDC, including case studies and showcases for the use of IMS data for civil and scientific purposes.

Keywords: CTBT; seismology; hydroacoustic; infrasound; atmospheric transport modelling