Electromagnetic Subsurface Imaging in the Presence of Metallic Structures: A Review of Numerical Strategies

O Castillo-Reyes, P Queralt, P Piñas-Varas, J Ledo… - Surveys in …, 2024 - Springer
Electromagnetic (EM) imaging aims to produce large-scale, high-resolution soil conductivity
maps that provide essential information for Earth subsurface exploration. To rigorously …

Further discussion on the influence radius of a pumping well: A parameter with little scientific and practical significance that can easily be misleading

Y Zhai, X Cao, Y Jiang, K Sun, L Hu, Y Teng, J Wang… - Water, 2021 - mdpi.com
To facilitate understanding and calculation, hydrogeologists have introduced the influence
radius. This parameter is now widely used, not only in the theoretical calculation and …

Three‐dimensional electrical conductivity and induced polarization tomography of a rock glacier

PA Duvillard, A Revil, Y Qi… - Journal of …, 2018 - Wiley Online Library
Three‐dimensional electrical resistivity and induced polarization data were collected on an
unstable Alpine rock glacier in Val Thorens (Vanoise massif, France). In addition to these …

[HTML][HTML] Gravity estimation of groundwater mass balance of sandy aquifers in the land subsidence-hit region of Yunlin County, Taiwan

KH Chen, C Hwang, Y Tanaka, PY Chang - Engineering Geology, 2023 - Elsevier
Land subsidence will decrease the safety factor of bridges and structures. Many highways
and railways constructed decades ago are experiencing damage due to continual land …

[HTML][HTML] Uncertainty of the 2D resistivity survey on the subsurface cavities

YG Doyoro, PY Chang, JM Puntu - Applied Sciences, 2021 - mdpi.com
We examined the uncertainty of the two-dimensional (2D) resistivity method using
conceptual cavity models. The experimental cavity study was conducted to validate …

A review of open software resources in python for electrical resistivity modelling

YG Doyoro, PY Chang, JM Puntu, DJ Lin, T Van Huu… - Geoscience Letters, 2022 - Springer
Geophysical modelling performs to obtain subsurface structures in agreement with
measured data. Freeware algorithms for geoelectrical data inversion have not been widely …

[HTML][HTML] Four-dimensional electrical resistivity imaging for monitoring pumping-induced saltwater intrusion in a coastal aquifer

MC McDonnell, R Flynn, JF Águila, GA Hamill… - Science of the Total …, 2023 - Elsevier
Conventional views of saltwater intrusion (SWI), where a basal saline wedge extends inland
below fresh groundwater, can be complicated by the influence of saltwater cells in the upper …

Uncertainty quantification and global sensitivity analysis of subsurface flow parameters to gravimetric variations during pumping tests in unconfined aquifers

FZ Maina, A Guadagnini - Water Resources Research, 2018 - Wiley Online Library
We study the contribution of typically uncertain subsurface flow parameters to gravity
changes that can be recorded during pumping tests in unconfined aquifers. We do so in the …

Temporal and spatial groundwater contamination assessment using geophysical and hydrochemical methods: The industrial chemical complex of Estarreja (Portugal) …

T Marques, MS Matias, EF Silva, N Durães, C Patinha - Applied Sciences, 2021 - mdpi.com
With more than a half-century in operation, the industrial chemical complex of Estarreja
(ICCE) in northern Portugal has left serious environmental liabilities in the region. Although …

Using time-lapse resistivity imaging methods to quantitatively evaluate the potential of groundwater reservoirs

PY Chang, JM Puntu, DJ Lin, HJ Yao, LC Chang… - Water, 2022 - mdpi.com
In this study, we attempt to establish an alternative method for estimating the groundwater
levels and the specific yields of an unconfined aquifer for the evaluation of potential …