ZTEM三维有限差分数值模拟算法及响应特征研究

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Bibliographic Details
Published in应用地球物理：英文版 Vol. 13; no. 3; pp. 553 - 560
Main Author 王涛 谭捍东 李志强 王堃鹏 胡志明 张兴东
Format Journal Article
LanguageEnglish
Published 2016
Subjects
ZTEM
三维正演
倾子
有限差分法
航空电磁
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ISSN1672-7975
1993-0658

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Bibliography:Z-Axis tipper electromagnetic, finite-difference method, tipper, three-dimensional forward modeling, airbome electromagnetic
The Z-Axis tiPPer eiectromagnetic （ZTEM） technique is based on a frequency-domain airbome electromagnetic system that measures the natural magnetic field. A survey area was divided into several blocks by using the Maxwell＇s equations, and the magnetic components at the center of each edge of the grid cell are evaluated by applying the staggered-grid finite-difference method. The tipper and its divergence are derived to complete the 3D ZTEM forward modeling algorithm. A synthetic model is then used to compare the responses with those of 2D finite-element forward modeling to verify the accuracy of the algorithm. ZTEM offers high horizontal resolution to both simple and complex distributions of conductivity. This work is the theoretical foundation for the interpretation of ZTEM data and the study of 3D ZTEM inversion.
11-5212/O
Wang Tao1, Tan Han-Dong.1, Li Zhi-Qiang1, Wang Kun-Peng1, Hu Zhi-Ming1, Zhang Xing-Dong1 （1. Key Laboratory of Geo-detection Ministry of Education and School of Geophysics and Information Technology, China University of Geosciences, Beijing 100083, China.）
ISSN:1672-7975
1993-0658