| 地形对大地电磁测深(MTS)资料的影响 |
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| 引用本文： | 晋光文,孙洁,王继军. 地形对大地电磁测深(MTS)资料的影响[J]. 地震地质, 1997, 19(4): 76 |
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| 作者姓名： | 晋光文 孙洁 王继军 |
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| 作者单位： | 国家地震局地质研究所 |
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| 摘 要： | 地形影响是山区ＭＴＳ工作的主要问题之一，对此做了理论分析并用均匀半空间表面二维地形模型进行了数值模拟。结果表明，地形影响不仅与ＭＴＳ资料的种类、极化模式、场源电磁波周期及测点位置有关，而且还依赖于不同的地形形态和尺度。此外，还根据悬崖模型计算，给出了关于地形影响范围的估
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| 关 键 词： | 大地电磁测深 数值模拟 地形影响 |
EFFECT OF TOPOGRAPHY ON THE DATA OF MAGNETOTELLURIC SOUNDING (MTS |
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| Jin Guangwen Sun Jie Wang Jijun. EFFECT OF TOPOGRAPHY ON THE DATA OF MAGNETOTELLURIC SOUNDING (MTS[J]. Seismology and Geology, 1997, 19(4): 76 |
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| Authors: | Jin Guangwen Sun Jie Wang Jijun |
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| Abstract: | Effect of topography is one of the main problems for the MTS work in mountain areas. To this problem we have made theoretical analyses and numerical modeling by using a two dimensional model in homogeneous halfspace. Our results indicate that effect of topography depends on the type of MTS data, mode of polarization, electromagnetic wave period of field source, survey site, as well as the form and scale of topography. In addition, we also give the estimates on the extent of topography effect in terms of calculations by a cliff model. |
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| Keywords: | Magnetotelluric sounding Numerical modeling Effect of topography |
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