A parallel adaptive finite-element approach for 3-D realistic controlled-source electromagnetic problems using hierarchical tetrahedral grids
To effectively and efficiently interpret or invert controlled-source electromagnetic (CSEM)
data which are recorded in areas with the kind of complex geological environments and …
data which are recorded in areas with the kind of complex geological environments and …
3D finite-volume time-domain modeling of geophysical electromagnetic data on unstructured grids using potentials
Unstructured grids are capable of faithfully representing real-life geologic models and
topography with relatively few mesh cells. We have developed a finite-volume solution to the …
topography with relatively few mesh cells. We have developed a finite-volume solution to the …
Surface geometry inversion of transient electromagnetic data
We investigate an emerging method called surface geometry inversion (SGI) for the
inversion of transient electromagnetic (TEM) data. Conventional minimum-structure …
inversion of transient electromagnetic (TEM) data. Conventional minimum-structure …
Massively parallel modeling of electromagnetic field in conductive media: An MPI-CUDA implementation on Multi-GPU computers
Numerical modeling of electromagnetic (EM) fields in a conductive marine environment is
crucial for marine EM data interpretation. During marine controlled-source electromagnetic …
crucial for marine EM data interpretation. During marine controlled-source electromagnetic …
Three-dimensional full-time transient electromagnetic modeling using restarting polynomial Krylov subspace model order reduction method
JM ZHOU, X **g, KL LU, WT LIU, X LI - Chinese Journal of Geophysics, 2023 - en.dzkx.org
Transient electromagnetic (TEM) modeling is a challenge in terms of memory and computing
time. TEM responses are affected by the full transmitting-current waveforms and needs to be …
time. TEM responses are affected by the full transmitting-current waveforms and needs to be …
3-D full-time TEM modeling using shift-and-invert Krylov subspace method
J Zhou, W Liu, X Li, Y Qi, Z Qi - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
The 3-D time-domain electromagnetic (TEM) modeling is computationally expensive. Shift-
and-invert (SAI) Krylov subspace technique has proved efficient for the modeling of OFF …
and-invert (SAI) Krylov subspace technique has proved efficient for the modeling of OFF …
Accelerating the frequency domain controlled-source electromagnetic data inversion using rational Krylov subspace algorithm
J Liu, Z Ren, X **ao, J Tang… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
Controlled-source electromagnetic (CSEM) method is crucial for detecting and locating
underground anomalies and structures. However, it is challenging to interpret the field data …
underground anomalies and structures. However, it is challenging to interpret the field data …
Solution of large-scale 3D controlled-source electromagnetic modeling problem using efficient iterative solvers
With geophysical surveys evolving from traditional 2D to 3D models, the large volume of
data adds challenges to inversion, especially when aiming to resolve complex 3D structures …
data adds challenges to inversion, especially when aiming to resolve complex 3D structures …
Research progress in three-dimensional forward modeling for the transient electromagnetic method
J Chang, J Xue, Q Meng, H Li - Journal of Geophysics and …, 2024 - academic.oup.com
The transient electromagnetic (TEM) method is a valuable tool for detecting the structure of
underground geological targets. However, TEM survey environments are complex and …
underground geological targets. However, TEM survey environments are complex and …
Source decoupling and model order reduction for 3-D full-time transient electromagnetic modeling
J Zhou, Y Wen, X **g, K Lu, W Liu… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
Krylov subspace projection model order reduction technique for matrix function has proved
efficient for the modeling of 3-D OFF-time transient electromagnetic (TEM) data. However …
efficient for the modeling of 3-D OFF-time transient electromagnetic (TEM) data. However …