Concrete is a multicomposite material with heterogeneities ranging in size from micrometers
to centimeters. At low frequency (below 50 kHz), ultrasound propagates through concrete …

Historic levels of drought, globally, call for sustainable freshwater management. Under
pressing demand is a refined understanding of the structures and dynamics of groundwater …

[1] We propose passive image interferometry as a technique for seismology that allows to
continuously monitor small temporal changes of seismic velocities in the subsurface. The …

Volcanic eruptions are caused by the release of pressure that has accumulated due to hot
volcanic fluids at depth. Here, we show that the extent of the regions affected by pressurized …

Monitoring magma pressure buildup at depth and transport to surface is a key point for
improving volcanic eruption prediction. Seismic waves, through their velocity dependence to …

Given that clay‐rich landslides may become mobilized, leading to rapid mass movements
(earthflows and debris flows), they pose critical problems in risk management worldwide …

The technique of passive image interferometry applies interferometric methods to correlation
functions of seismic noise to monitor small temporal variations of the Earth interior. We …

Forecasting the location of an eruption is of primary importance for risk management in
volcanic regions. Locating the underground structural changes associated with a potential …

Numerous monitoring applications make use of seismic coda waves to evaluate velocity
changes in the Earth. This raises the question of the spatial sensitivity of coda wave-based …

This article presents an imaging technique to locate a weak perturbation in a multiple
scattering environment. We derive a formula to predict the spatiotemporal decorrelation of …