| 电阻率随位置线性变化时的三维大地电磁模拟 |
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| 引用本文： | 鲁来玉,张碧星,鲍光淑.电阻率随位置线性变化时的三维大地电磁模拟[J].地球物理学报,2003,46(4):568-575. |
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| 作者姓名： | 鲁来玉 张碧星 鲍光淑 |
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| 作者单位： | 1.中国科学院声学研究所, 北京 100080 2 中南大学资源环境与建筑工程学院, 长沙 410083 |
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| 基金项目： | 国家自然科学基金资助项目 ( 10 13 40 2 0 ) . |
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| 摘 要： | 采用积分方程法实现了对三维体电磁散射的数值模拟研究.在分析电张量格林函数的基础上,针对大地电磁情形，进行了数值模拟研究.分析了异常体的横向走向长度对电磁响应的影响,特别对电阻率作线性变化的异常体进行了数值分析,并得到了相应测深曲线.对三维电磁测深进行了分析,考察了地层参数的影响,得到了一些重要结果.
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| 关 键 词： | 三维大地电磁模拟 解析式 积分方程法 张量格林函数 |
| 文章编号： | 0001-5733(2003)04-0568-08 |
| 收稿时间： | 2002-3-19 |
| 修稿时间： | 2003-3-27 |
MODELING OF THREE-DIMENSIONAL MAGNETOTELLURIC RESPONSE FOR A LINEAR EARTH |
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| LU LAIYU.MODELING OF THREE-DIMENSIONAL MAGNETOTELLURIC RESPONSE FOR A LINEAR EARTH[J].Chinese Journal of Geophysics,2003,46(4):568-575. |
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| Authors: | LU LAIYU |
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| Affiliation: | 1.Institute of Acoustics, The Chinese Academy of Sciences, Beijing 100080,China 2 College of Resources, Environment and Civil Engineering, Central South University, Changsha 410083, China |
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| Abstract: | Numerical algorithm of three-dimensional electromagnetic modeling using integral equation is realized based on the electrical tensor Green's function when the apparent resistivity varies linearly in both the horizontal and vertical directions. The effects of the dimension of the anomaly strike on the scattering fields are studied. Three-Dimensional electromagnetic sounding profiles are analyzed. We have also considered the effect of formation parameters on magnetotelluric response, and obtained some important results. |
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| Keywords: | Three-dimensional magnetotelluric modeling Analytic expression Integral equation approach Tensor Green's function |
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