Impacts of using the rigorous topographic gravity modeling method and lateral density variation model on topographic reductions and geoid modeling: a case study in …
M Lin, X Li - Surveys in Geophysics, 2022 - Springer
Until now, the prismatic mass approximation of the topography and the constant density
assumption have been mostly utilized in topographic reductions, which are rough …
assumption have been mostly utilized in topographic reductions, which are rough …
Gravity field modeling using tesseroids with variable density in the vertical direction
M Lin, H Denker, J Müller - Surveys in Geophysics, 2020 - Springer
We present an accurate method for the calculation of gravitational potential (GP), vector
(GV), and gradient tensor (GGT) of a tesseroid, considering a density model in the form of a …
(GV), and gradient tensor (GGT) of a tesseroid, considering a density model in the form of a …
Constrained gravity inversion with adaptive inversion grid refinement in spherical coordinates and its application to mantle structure beneath Tibetan Plateau
We develop a novel gravity inversion algorithm in spherical coordinates based on adaptive
inversion mesh refinement and multiphysical parameter constraints. The inversion mesh is …
inversion mesh refinement and multiphysical parameter constraints. The inversion mesh is …
Crustal and lithospheric mantle structure below the Indian shield based on 3-D constrained gravity inversion and deep neural network approach: geological …
SK Sathapathy, M Radhakrishna - Tectonophysics, 2023 - Elsevier
The Indian shield region comprises of several Archean cratons, Proterozoic mobile belts,
Proterozoic-Phanerozoic rift basins, and volcanic provinces and has been significantly …
Proterozoic-Phanerozoic rift basins, and volcanic provinces and has been significantly …
Gravity field of a tesseroid by variable-order Gauss–Legendre quadrature
L Qiu, Z Chen - Journal of Geodesy, 2020 - Springer
Abstract The Gauss–Legendre quadrature (GLQ) integration is a numerical method to
calculate the gravitational field of a tesseroid and the approximation error of the GLQ …
calculate the gravitational field of a tesseroid and the approximation error of the GLQ …
Fast calculation of gravitational effects using tesseroids with a polynomial density of arbitrary degree in depth
F Ouyang, L Chen, Z Shao - Journal of Geodesy, 2022 - Springer
Fast and accurate calculation of gravitational effects on a regional or global scale with
complex density environment is a critical issue in gravitational forward modelling. Most …
complex density environment is a critical issue in gravitational forward modelling. Most …
[HTML][HTML] 任意起伏地形下重力异常三维正演及并行计算
戴世坤, 朱德祥, 张莹, 李昆, 陈轻蕊, 凌嘉宣, 田红军 - 地球物理学报, 2024 - dzkx.org
为了进一步提高空间-波数域三维重力异常正演算法的适用范围和计算效率,
本文采用任意傅里叶变换算法实现了空间-波数域三维重力异常正演, 且在NVIDIA CUDA …
本文采用任意傅里叶变换算法实现了空间-波数域三维重力异常正演, 且在NVIDIA CUDA …
Fast numerical simulation of 2D gravity anomaly based on nonuniform fast Fourier transform in mixed space-wavenumber domain
X Wang, J Liu, S Dai, R Guo, J Li, P Fan - Journal of Applied Geophysics, 2021 - Elsevier
Wavenumber domain gravity modeling is typically based on the fast Fourier transform (FFT),
requiring uniform sampling in both space and wavenumber domains and grid expansion to …
requiring uniform sampling in both space and wavenumber domains and grid expansion to …
Fast 3D gravity and magnetic modelling using midpoint quadrature and 2D FFT
To avoid the problem of the traditional methods consuming large computational resources to
calculate the kernel matrix and 2D discrete convolution, we present a novel approach for 3D …
calculate the kernel matrix and 2D discrete convolution, we present a novel approach for 3D …
Gravity field forward modelling using tesseroids accelerated by Taylor series expansion and symmetry relations
X Zeng, X Wan, M Lin, W Wang - Geophysical Journal …, 2022 - academic.oup.com
In this study, we developed a new method that can significantly accelerate the forward
modelling of gravity fields generated by large-scale tesseroids while keeping the …
modelling of gravity fields generated by large-scale tesseroids while keeping the …