Uncertainty and resolution analysis of 2D and 3D inversion models computed from geophysical electromagnetic data
Z Ren, T Kalscheuer - Surveys in Geophysics, 2020 - Springer
A meaningful solution to an inversion problem should be composed of the preferred
inversion model and its uncertainty and resolution estimates. The model uncertainty …
inversion model and its uncertainty and resolution estimates. The model uncertainty …
[PDF][PDF] 海洋可控源电磁三维非结构矢量有限元数值模拟
杨军， 刘颖， 吴小平 - 地球物理学报, 2015 - geophy.cn
摘要本文实现了海洋可控源电磁三维矢量有限元数值模拟. 由于采用非结构四面体单元进行三维
网格剖分, 该方法可以模拟复杂电性异常体和海底地形. 一维模型的数值模拟结果表明, 电场实 …
网格剖分, 该方法可以模拟复杂电性异常体和海底地形. 一维模型的数值模拟结果表明, 电场实 …
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 …
An efficient multigrid solver based on a four-color cell-block Gauss-Seidel smoother for 3D magnetotelluric forward modeling
Practical application of 3D magnetotelluric inversion requires efficient forward modeling of
electromagnetic (EM) fields in the earth. To resolve realistic 3D structures, large …
electromagnetic (EM) fields in the earth. To resolve realistic 3D structures, large …
Deformation of crust and upper mantle in central Tibet caused by the northward subduction and slab tearing of the Indian lithosphere: New evidence based on shear …
Shear-wave splitting provides insight into geodynamic processes such as lithospheric
deformation and upper mantle flow. This study presents shear wave splitting parameters …
deformation and upper mantle flow. This study presents shear wave splitting parameters …
[HTML][HTML] 基于几何多重网格预条件技术的三维大地电磁高效正演模拟
王永斐， 柳建新， 郭荣文， 刘嵘， 李健， 陈杭， 杨刚强 - 地球物理学报, 2022 - geophy.cn
几何多重网格法(GMG) 将细网格上的大型稀疏矩阵的求解转化为较粗网格上的更容易求解的
问题, 从而快速求解大型稀疏方程组. 但是由于大地电磁法(MT) 正演模拟中涉及双旋度算子 …
问题, 从而快速求解大型稀疏方程组. 但是由于大地电磁法(MT) 正演模拟中涉及双旋度算子 …
An efficient cascadic multigrid solver for 3-D magnetotelluric forward modelling problems using potentials
The fast and accurate 3-D magnetotelluric (MT) forward modelling is core engine of the
interpretation and inversion of MT data. In this study, we develop an improved extrapolation …
interpretation and inversion of MT data. In this study, we develop an improved extrapolation …
Fully anisotropic 3-D EM modelling on a Lebedev grid with a multigrid pre-conditioner
P Jaysaval, DV Shantsev… - Geophysical Journal …, 2016 - academic.oup.com
We present a numerical algorithm for 3-D electromagnetic (EM) simulations in conducting
media with general electric anisotropy. The algorithm is based on the finite-difference …
media with general electric anisotropy. The algorithm is based on the finite-difference …
[HTML][HTML] 可控源电磁场三维自适应矢量有限元正演模拟
刘颖， 李予国， 韩波 - 地球物理学报, 2017 - html.rhhz.net
本文实现了可控源电磁(CSEM) 场三维自适应矢量有限元正演算法, 该算法采用非结构四面体
单元进行三维网格剖分, 能够真实模拟地形起伏和复杂电性异常体. 采用一次场和二次场分离的 …
单元进行三维网格剖分, 能够真实模拟地形起伏和复杂电性异常体. 采用一次场和二次场分离的 …
Parallel 3-D marine controlled-source electromagnetic modelling using high-order tetrahedral Nédélec elements
O Castillo-Reyes, J de la Puente… - Geophysical Journal …, 2019 - academic.oup.com
We present a parallel and high-order Nédélec finite element solution for the marine
controlled-source electromagnetic (CSEM) forward problem in 3-D media with isotropic …
controlled-source electromagnetic (CSEM) forward problem in 3-D media with isotropic …