Magnetotelluric Responses of a Horizontally Nonhomogeneous Model of the Earth with Anisotropic Conductivity Structures

Magnetotelluric Responses of a Horizontally Nonhomogeneous Model of the Earth with Anisotropic Conductivity Structures
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具有各向异性电导率结构的水平非均匀地球模型的大地电磁响应

DOI:
10.1007/s00024-018-2040-5
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发表时间:
2018-11
影响因子:
2
通讯作者:
Changfu Yang
Changfu Yang
中科院分区:
地球科学3区
文献类型:
--
作者:
Linjiang Qin;Changfu Yang

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一个准静态的分析方法适用于大地电磁响应的理想化的二维(2-D)水平非均匀模型组成的任何数量的段与电各向异性导电性下伏一个完美的导体基底。在这个模型中,磁场矢量处处平行于垂直接触和地球表面。推导了该模型的大地电磁响应的解,并给出了一种特殊情况下的电场和磁场的详细表达式。由此产生的quasianalytical解决方案,然后给出用于验证的数值算法。
A quasistatic analytical approach is applied to the magnetotelluric responses of an idealized two-dimensional (2-D) horizontally nonhomogeneous model consisting of any number of segments with electrical anisotropic conductivity underlain by a perfect conductor basement. For this model, the magnetic field vector is everywhere parallel to the vertical contacts and to the Earth’s surface. The solution to the magnetotelluric responses of the model are derived, and detailed expressions for the electric and magnetic fields for a specialized case are presented. The resulting quasianalytical solution is then given for use in validation of numerical algorithms.
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发表时间: 1975-12
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