Electromagnetic subsurface imaging in the presence of metallic structures: a review of numerical strategies
Electromagnetic (EM) imaging aims to produce large-scale, high-resolution soil conductivity
maps that provide essential information for Earth subsurface exploration. To rigorously …
maps that provide essential information for Earth subsurface exploration. To rigorously …
EMFEM: A parallel 3D modeling code for frequency-domain electromagnetic method using goal-oriented adaptive finite element method
C Qin, X Wang, N Zhao - Computers & Geosciences, 2023 - Elsevier
We have developed an open-source parallel 3D forward modeling code called EMFEM for
the frequency-domain electromagnetic method (FDEM). This code is based on the adaptive …
the frequency-domain electromagnetic method (FDEM). This code is based on the adaptive …
Complex frequency-shifted perfectly matched layers for 2.5 D frequency-domain marine controlled-source EM field simulations
G Li, L Zhang, BK Goswami - Surveys in Geophysics, 2022 - Springer
For geophysical electromagnetic (EM) forward modeling problems, the accuracy of solutions
mainly depends on the numerical modeling method used and the corresponding boundary …
mainly depends on the numerical modeling method used and the corresponding boundary …
Three-dimensional inversion of semi-airborne electromagnetic data with a second-order finite-element forward solver
The analysis of controlled-source electromagnetic (EM) data recorded with semi-airborne
exploration systems requires advanced simulation and inversion tools that are capable of …
exploration systems requires advanced simulation and inversion tools that are capable of …
Tailored meshing for parallel 3D electromagnetic modeling using high-order edge elements
We present numerical experiments for geophysics electromagnetic (EM) modeling based
upon high-order edge elements and supervised h+ p refinement approaches on massively …
upon high-order edge elements and supervised h+ p refinement approaches on massively …
An efficient cascadic multigrid method with regularization technique for 3D electromagnetic finite-element anisotropic modeling
Efficient forward modeling of electromagnetic (EM) fields is the basis of interpretation and
inversion of the EM data, which plays an important role in practical geophysical exploration …
inversion of the EM data, which plays an important role in practical geophysical exploration …
Efficient 3D Frequency Semi-Airborne Electromagnetic Modeling Based on Domain Decomposition
Z Hui, X Wang, C Yin, Y Liu - Remote Sensing, 2023 - mdpi.com
Landslides are common geological hazards that often result in significant casualties and
economic losses. Due to their occurrence in complex terrain areas, conventional …
economic losses. Due to their occurrence in complex terrain areas, conventional …
Evaluation of three approaches for simulating 3-D time-domain electromagnetic data
We implemented and compared the implicit Euler time-step** approach, the inverse
Fourier transform-based approach and the Rational Arnoldi method for simulating 3-D …
Fourier transform-based approach and the Rational Arnoldi method for simulating 3-D …
A general forward solver for 3D CSEMs with multitype sources and operating environments
D Li, Z Wang, Y Li, L ** - Frontiers in Earth Science, 2023 - frontiersin.org
To determine the electromagnetic (EM) fields of different three-dimensional (3D) controlled-
source electromagnetic methods (CSEMs) using the same parameters of the forward …
source electromagnetic methods (CSEMs) using the same parameters of the forward …
Meshing strategies for 3d geo-electromagnetic modeling in the presence of metallic infrastructure
In 3D geo-electromagnetic modeling, an adequate discretisation of the modeling domain is
crucial to obtain accurate forward responses and reliable inversion results while reducing …
crucial to obtain accurate forward responses and reliable inversion results while reducing …