MIIC: Monitoring and Imaging Based on Interferometric Concepts

摘要: The capability of seismic interferometry to create virtual sources at receiver sites from records ambient noise is used for monitoring and tomography different targets. We present hardware developed specifically the needs data acquisition in context tomography. Digitizers are capable continuous recording real time wireless transmission self organizing meshes allow robust telemetry difficult circumstances such as cities or landslides that may cause loss stations. A software tool described implements required processing analysis procedures interferometric processing. have applied novel 3D surface wave approach Issyk-Ata fault Kyrgyzstan. It shows can successfully be structural investigations on length scales only 100 m. method uses sensitivity kernels a single-step inversion phase velocity dispersion curves subsurface S-wave structure incorporates topography. recover lateral differences sediment velocities an offset bedrock depth across fault. Applications geological \(\mathrm{CO}_2\) storage test site Ketzin (Germany) Piton de la Fournaise volcano (La Reunion island) emphasize value this approach. At we identify variations correlated with changes ground water level mask potential signals reservoir depth. volcano, linked volcanic processes shown by comparison displacement seismicity typically characterize activity. observe clear distinction between phases inflation prior eruptions deflation during periods quiescence.