Seismic techniques

Ambient seismic noise, originating from various high-frequency sources such as road traffic, wave action, or wind effects on structures, allows for the investigation of the near surface.

This approach relies on the reconstruction of surface waves through noise correlation and provides an alternative to active sources for subsurface imaging and monitoring over periods ranging from a few hours to several years. As part of the laboratory's activities, this method is used both for probing the near surface and for monitoring structures such as sea dikes.