Monitoring and Imaging based on Interferometric Concepts

MIIC Participant on GFZ:
Dr. Claus Milkereit, Dr. habil. Stefano Parolai, Dr. Matteo Picozzi, Marco Pilz
outsite GFZ:
Universität Leipzig BAM Bundesanstalt für Materialforschung und -prüfung,
GGL Leipzig,
K-UTEC Sondershausen
Project duration: 2010-2013

Recent years have witnessed the emergence of a new field in seismology (Courtland, 2008). New concepts from mesoscopic physics have dramatically changed the seismologists’ view on ambient noise and seismic coda. Being disturbing signals that hinder the detection of earthquakes only six years ago these wave fields become a major source of information that is used with seismic interferometry.
The goal of MIIC is to develop new imaging and monitoring strategies that are based on these new concepts to make use of scattered waves and ambient seismic noise in a broader set of applications that extends beyond seismology. We will develop an analysis tool that integrates real time data handling, interferometric processing and novel simulation and inversion strategies to combine the monitoring and imaging approaches into a dynamic tomography that gives 4D information about the structure of the target and its temporal changes.
With this tool we will provide the opportunity to use the advantages of seismic interferometry in many disciplines that are concerned with elastic waves. The special requirements of the interferometric concepts in the data acquisition will be met by optimized instruments that will be developed within the project. From the combination of active and passive seismic techniques with new imaging and monitoring technologies that are to be developed in the project we expect progress that is strongly required in the fields of building-ground investigation (seismik risk, Eurocode 7), subsurface monitoring (tunnel and mining safety) and geo-hazard evaluation (volcano and landslide monitoring).