Drill string vibrations and shocks (V&S) can limit the optimization of drilling performance,
which is a key problem for trajectory optimizing, wellbore design, increasing drill tools life …

Recent research has shown that noise can be turned from a nuisance into a useful seismic
source. In seismology and other fields in science and engineering, the estimation of the …

The term seismic interferometry refers to the principle of generating new seismic responses
by crosscorrelating seismic observations at different receiver locations. The first version of …

We apply the cross-coherence method to the seismic interferometry of traffic noise, which
originates from roads and railways, to retrieve both body waves and surface-waves. Our …

Seismic interferometry, also known as Green's function retrieval by crosscorrelation, has a
wide range of applications, ranging from surface-wave tomography using ambient noise, to …

In the 1990s, the method of time-reversed acoustics was developed. This method exploits
the fact that the acoustic wave equation for a lossless medium is invariant for time reversal …

The magnitude (MW) 9.0 Tohoku‐Oki earthquake on 11 March 2011 was one of the largest
in recent history. Ground motion caused by the seismicity around the time of the main shock …

In this work we investigate fundamentals of a method—referred to as full waveform ambient
noise inversion—that improves the resolution of tomographic images by extracting waveform …

We have evaluated a field test in the city of Singapore to assess the feasibility of the passive
seismic survey for bedrock depth determination and to further investigate the optimal …

We develop a general theory for interferometry by correlation that (i) properly accounts for
heterogeneously distributed sources of continuous or transient nature,(ii) fully incorporates …