A Review of Electrical Resistivity Tomography Applications in Underground Imaging and Object Detection

Ducut, Jullian Dominic D.; Alipio, Melchizedek I.; Go, Phoebe Joanne; Concepcion, Ronnie; Vicerra, Ryan Rhay P.; Dadios, Elmer P.

doi:10.1016/j.displa.2022.102208

Cited by 40 publications

(16 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Electrical resistivity tomography (ERT) is a widely utilized geophysical subsurface imaging technology that is frequently used in archaeological mapping, hydrological exploration, environmental research, and civil engineering ( Daily et al., 2004 ; Zhou and Kanl, 2018 ; Ducut et al., 2022 ). The conventional DC resistivity investigation was transformed into a computerized tomography technique, which makes use of multielectrode hardware or systems to automatically collect a lot of data and then uses software to recreate the subsurface resistivity structure using the observed data ( Loke, 1999 , 2004 ).…”

Section: Methodsmentioning

confidence: 99%

Integrated geophysical investigation for lead and zinc mineralization in Wase, middle Benue Trough, Nigeria

Yusuf

Faruk

Imagbe

et al. 2022

Heliyon

View full text Add to dashboard Cite

Section: Methodsmentioning

confidence: 99%

Integrated geophysical investigation for lead and zinc mineralization in Wase, middle Benue Trough, Nigeria

Yusuf

Faruk

Imagbe

et al. 2022

Heliyon

View full text Add to dashboard Cite

“…However, this is not the case in, e.g. geophysical electrical resistivity tomography [16], where the injecting and measuring electrodes are separate. To overcome this limitation, let us define…”

Section: ) Operating Withmentioning

confidence: 99%

Series reversion for electrical impedance tomography with modeling errors ^*

2023

View full text Add to dashboard Cite

This work extends the results of [Garde and Hyvönen, Math. Comp. 91:1925–1953] on series reversion for Calderón’s problem to the case of realistic electrode measurements, with both the internal admittivity of the investigated body and the contact admittivity at the electrode-object interfaces treated as unknowns. The forward operator, sending the internal and contact admittivities to the linear electrode current-to-potential map, is ﬁrst proven to be analytic. A reversion of the corresponding Taylor series yields a family of numerical methods of diﬀerent orders for solving the inverse problem of electrical impedance tomography, with the possibility to employ diﬀerent parametrizations for the unknown internal and boundary admittivities. The functionality and convergence of the methods is established only if the employed ﬁnite-dimensional parametrization of the unknowns allows the Fréchet derivative of the forward map to be injective, but we also heuristically extend the methods to more general settings by resorting to regularization motivated by Bayesian inversion. The performance of this regularized approach is tested via three-dimensional numerical examples based on simulated data. The effect of modeling errors related to electrode shapes and contact admittances is a focal point of the numerical studies.

show abstract

“…An ERT survey (GD-20, Geomative Ltd.) with 12 profile lines (length 100-300 m, electrode spacing 1-2 m) was conducted to collect the subsurface electrical resistivity (ER) data of Site A (Figure 1a). Wenner-Schlumberger array (Ducut et al, 2022) was used to measure the apparent ER for each of the 12 survey profiles, and the profiles with true ER values and depths were obtained by using the ER inversion procedure of the pyGIMLi software (Rucker et al, 2017). The 3D gridded ER data were obtained by interpolating the true resistivity profiles through IDW interpolation (Figure S5).…”

Section: Auxiliary Data and Covariate Developmentmentioning

confidence: 99%

Improved three‐dimensional mapping of soil chromium pollution with sparse borehole data: Incorporating multisource auxiliary data into IDW‐based interpolation

Chen

Cui

Peng

et al. 2023

Soil Use and Management

View full text Add to dashboard Cite

Deriving an accurate three‐dimensional (3D) spatial distribution of heterogeneous soil pollutants at contaminated sites using traditional spatial interpolation methods, such as inverse distance weighting (IDW), is challenging; especially when only limited borehole data are available. This study presents a novel IDW‐COV method, where weighting is determined by optimizing relative importance between feature distances of covariates and spatial distances to soil sample locations. The method was tested by mapping the 3D distributions of Cr (VI) and total Cr at a Cr salt production workshop (Site A) and a legacy Cr slag stacking site (Site B). The results were compared with those of IDW, the soil land inference model (SoLIM), and the SoLIM combined with IDW method (SoLIM‐IDW). The proposed IDW‐COV method returned the highest accuracy, with R2 values of 0.83 for Cr (VI) in Site A and 0.75 for total Cr in Site B, compared with 0.65 and 0.57 for IDW, 0.16 and 0.58 for SoLIM, and 0.73 and 0.61 for SoLIM‐IDW. This study highlights the importance of considering differences in explanatory power between multidimensional covariate and geographical spatial distance when incorporating multisource auxiliary data into weighted average estimators and provides guidance for mapping 3D distributions of heterogeneous pollutants from sparse soil borehole data.

show abstract

A Review of Electrical Resistivity Tomography Applications in Underground Imaging and Object Detection

Cited by 40 publications

References 48 publications

Integrated geophysical investigation for lead and zinc mineralization in Wase, middle Benue Trough, Nigeria

Integrated geophysical investigation for lead and zinc mineralization in Wase, middle Benue Trough, Nigeria

Series reversion for electrical impedance tomography with modeling errors ^*

Improved three‐dimensional mapping of soil chromium pollution with sparse borehole data: Incorporating multisource auxiliary data into IDW‐based interpolation

Contact Info

Product

Resources

About

A Review of Electrical Resistivity Tomography Applications in Underground Imaging and Object Detection

Cited by 40 publications

References 48 publications

Integrated geophysical investigation for lead and zinc mineralization in Wase, middle Benue Trough, Nigeria

Integrated geophysical investigation for lead and zinc mineralization in Wase, middle Benue Trough, Nigeria

Series reversion for electrical impedance tomography with modeling errors *

Improved three‐dimensional mapping of soil chromium pollution with sparse borehole data: Incorporating multisource auxiliary data into IDW‐based interpolation

Contact Info

Product

Resources

About

Series reversion for electrical impedance tomography with modeling errors ^*