We present a finite-difference time-domain (FDTD) approach for the simulation of three-
dimensional (3-D) transient electromagnetic diffusion phenomena for the detection of water …

In hard rock terrain, shallow water wells generally have a poor to moderate yield. Sinking
wells deeply to tap yielding fracture zones often backfires, because the borehole may miss …

Severe water inrush currently halts the excavation of the Qinling Water Transportation
Tunnel and has even stopped tunneling. Based on the geologic conditions of the …

Complex geology in glacial terrain makes groundwater exploration challenging for water
supply companies. Abrupt lateral changes of geological conditions, for example, raise the …

Airborne electromagnetics (AEM) is an effective technique for geophysical investigations of
the shallow subsurface and has successfully been applied in various geological settings to …

Within the scope of climatic change and associated sea level rise, coastal aquifers are
endangered and are becoming more a focus of research to ensure the future water supply in …

Helicopter time-domain electromagnetic (HTEM) surveys often suffer from significant
inaccuracies in the early-time or near-surface data—a problem that can lead to errors in the …

In glacial sediments, interpolation between boreholes is often difficult due to non-uniform
layering. On the other side, the knowledge on groundwater covering layers and the …

Airborne electromagnetic methods (AEM) have become an important part of groundwater
mapping in a wide range of geological settings. However, as for all geophysical methods …

High-resolution reflection seismic methods are an established non-destructive tool for
engineering tasks. In the near surface, shear-wave reflection seismic measurements usually …