ET EMR seismic characterization
The project aims to characterize the EMR candidate site for the planned gravitational wave detector (Einstein telescope) with respect to the so-called ambient seismic noise field. The EMR (Euregio Meuse-Rhine) is located close to Maastricht and Aachen and encompasses parts of Belgium, the Netherlands and Germany. The seismic noise field is created by environmental factors like ocean waves and wind and anthropogenic sources like traffic or heavy machinery. As the gravitational wave detector is extremely sensitive to ground motion that can make measurements impossible, a seismically quiet site and a well known wavefield allowing for active noise suppression are needed. We will characterize the composition of the noise field and try to locate possible sources within the study region by applying beamforming methods and correlating stacking (Matched Field Processing). From the measured wavefield at the surface, we plan to estimate the conditions at the prospective depth of the detector at 250m below surface by combining point measurements in boreholes with geological and topographical information at the surface using machine learning approaches. The work is embedded within a collaborative research project including the RWTH Aachen, the Ruhr University Bochum and the Karlsruhe Institute of Technology to study the geological and geophysical characteristics of the Einstein telescope candidate sites in the EMR region and in Lusatia.
- Dauer: 07/2024 - 06/2026
- Projektleitung: Dr. Dirk Becker, Prof. Dr. Céline Hadziioannou, Prof. Dr. Conny Hammer
- Drittmittelgeber: BMBF