Gravity gradient tensor of arbitrary 3D polyhedral bodies with up to third-order polynomial horizontal and vertical mass contrasts

Z Ren, Y Zhong, C Chen, J Tang, T Kalscheuer… - Surveys in …, 2018 - Springer
During the last 20 years, geophysicists have developed great interest in using gravity
gradient tensor signals to study bodies of anomalous density in the Earth. Deriving exact …

[HTML][HTML] 基于电流密度连续性条件的直流电阻率各向异性问题自适应有限元模拟

任政勇, 邱乐稳, 汤井田, 周峰, 陈超健, 陈煌, 胡双贵 - 地球物理学报, 2018 - html.rhhz.net
直流电阻率法被广泛应用在工程和环境及水文地球物理, 野外采矿, 地热探测等领域.
地下岩石常具有层理面和裂缝等具有方向依赖性的结构, 岩石电导率常常呈现各向异性特征 …

Multiple underwater objects localization with magnetic gradiometry

S Hu, J Tang, Z Ren, C Chen, C Zhou… - … and Remote Sensing …, 2018 - ieeexplore.ieee.org
Magnetic object localization techniques have significant applications in automated
surveillance and security systems, such as aviation aircrafts or underwater vehicles. In this …

Exact solutions of the vertical gravitational anomaly for a polyhedral prism with vertical polynomial density contrast of arbitrary orders

C Chen, Z Ren, K Pan, J Tang… - Geophysical Journal …, 2018 - academic.oup.com
We present general closed-form solutions for the vertical gravitational anomaly caused by a
polyhedral prism with mass density contrast varying with depth. Our equations are the first …

3D inversion of magnetic gradient tensor data based on convolutional neural networks

H Deng, X Hu, H Cai, S Liu, R Peng, Y Liu, B Han - Minerals, 2022 - mdpi.com
High-precision vector magnetic field detection has been widely used in the fields of celestial
magnetic field detection, aeromagnetic detection, marine magnetic field detection and …

3D modeling of direct-current anisotropic resistivity using the adaptive finite-element method based on continuity of current density

ZY REN, LW QIU, JT TANG, F ZHOU… - Chinese Journal of …, 2018 - en.dzkx.org
The direct current (DC) resistivity method has been widely applied in engineering,
environmental, and hydrological geophysics as well as field mining, geothermal exploration …

High-precision joint magnetization vector inversion method of airborne magnetic and gradient data with structure and data double constraints

G Ma, Y Zhao, B Xu, L Li, T Wang - Remote Sensing, 2022 - mdpi.com
Airborne magnetic and gradient measurements are commonly used geophysical remote
sensing tools to obtain the distribution features of ore mineral bodies. It is known that ore …

3D large-scale forward modeling of gravitational fields using triangular spherical prisms with polynomial densities in depth

F Ouyang, L Chen, L Wu - Journal of Geodesy, 2024 - Springer
To take the sphericity of the Earth into account, tesseroids are often utilized as grid elements
in large-scale gravitational forward modeling. However, such elements in a latitude …

Fast and high accuracy 3D magnetic anomaly forward modeling based on BTTB matrix

Y Yang, C YiAn, C Bo, Z GuangDong, L JianXin… - Chinese Journal of …, 2022 - dzkx.org
Given the low efficiency of the traditional three-dimensional (3D) magnetic forward modeling
method in the spatial domain, we propose a fast and high-accuracy 3D forward algorithm to …

A technique for constructing geophysical model from complex geological information

ZY REN, X WANG, JT TANG, QH WU - Chinese Journal of Geophysics, 2022 - en.dzkx.org
Due to the ability to accurately approximate arbitrary undulated topography and complex
geological structures, unstructured tetrahedral grids are widely used in geophysical forward …