Distributed Acoustic Sensing (DAS) has emerged as a versatile tool for seismic and geophysical studies due to its unprecedented sensor density, converting regular telecommunication fibers into distributed 1D strain sensors. DAS can achieve m-level spatial resolution and kHz sampling rates, enabling direct measurement of the coherent wavefield from seismic events. ...
The Moon is entering a new era of exploration, with dozens of commercial, national, and international missions planned for the coming decade. Supporting this activity will require robust Positioning, Navigation, and Timing (PNT) infrastructure - a "Lunar GPS" - capable of serving spacecraft, landers, and rovers across the cislunar domain. ...
This talk explores the mechanics of fluid-driven frictional ruptures, accounting for frictional weakening, dilation, and permeability changes. While primarily occurring during hydraulic stimulation of geothermal reservoirs, these processes also impact fault stability, landslides, and glacier mechanics. Assuming a circular rupture geometry, we examine how the rupture propagation behavior can widely ...
