| 各向异性介质中大地电磁场的异常特征 |
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| 引用本文： | 罗天涯,熊彬,李长伟,杨红,黄业中.各向异性介质中大地电磁场的异常特征[J].物探化探计算技术,2013(6):645-650. |
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| 作者姓名： | 罗天涯 熊彬 李长伟 杨红 黄业中 |
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| 作者单位： | 桂林理工大学地球科学学院,桂林541004 |
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| 基金项目： | 国家自然科学基金项目（40974077,41164004）;广西自然科学基金项目（2011GXNSFA018003）;广西高校优秀人才资助计划（桂教人[2010]41号） |
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| 摘 要： | 给出各向异性介质二维地电断面大地电磁场的边值问题以及等价的变分问题。对计算区域采用矩形网格中进一步三角细化的剖分方式并在三角单元内进行线性插值，解出有限单元法数值解。通过典型模型的正演模拟，得到大地电磁测深曲线，并与前人的研究工作对比，验证了该方法的有效性。
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| 关 键 词： | 大地电磁 有限单元法 各向异性介质 正演 |
The abnormal characteristic of magnetotelluric in anisotropy media |
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| LUO Tian-ya,XIONG Bin,LI Chang-wei,YANG Hong,HUANG Ye-zhong.The abnormal characteristic of magnetotelluric in anisotropy media[J].Computing Techniques For Geophysical and Geochemical Exploration,2013(6):645-650. |
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| Authors: | LUO Tian-ya XIONG Bin LI Chang-wei YANG Hong HUANG Ye-zhong |
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| Institution: | (College of Earth Sciences, Guilin University of Technology, Guilin 541004,China) |
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| Abstract: | The boundary value problem and its corresponding variation problem of magnetotelluric are derived in 2-D an- isotropic geoetectric section in this paper. And then subdivides four triangular lattices by adding two diagonal lines in a rec- tangular within the computed region, uses linear interpolation at each triangular lattice and computes the numerical solution with finite element method. At last some simple forward modeling examples of anisotropy medium are presented to get mag- netotelluric curve and illustrate the usefulness of this method. |
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| Keywords: | magnetotellurics FEM anisotropy medium forward modeling |
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