| 井地大地电磁非线性共轭梯度二维反演研究 |
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| 引用本文： | 张昆,魏文博,吕庆田,金胜.井地大地电磁非线性共轭梯度二维反演研究[J].地质学报,2011,85(5):915-924. |
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| 作者姓名： | 张昆 魏文博 吕庆田 金胜 |
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| 作者单位： | 中国地质科学院矿产资源研究所 |
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| 基金项目： | 国家科技专项:深部矿产资源立体探测与实验(SinoProbe-03); 地质大调查项目长江中下游地壳精细结构与控矿研究(编号1212010981004); 中国地质科学院矿场资源研究所2009年度基本科研业务费专项资金项目(编号K0929) |
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| 摘 要： | 本文提出并验证了地下大地电磁测深数据的正、反演算法和程序,为井地大地电磁测深和井地可控源音频大地电磁测深这一前沿研究课题提供了地球物理解释方法.使其更加完善和有效.在Rodi(2001)发表的大地电磁场二维NLCG反演理论和算法的基础上,推导了井地大地电磁场二维NLCG反演算法,改编反演的代码,开发出二维NLCG反演程...
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| 关 键 词： | 井地大地电磁场 非线性共轭梯度 二维反演 |
| 收稿时间： | 3/29/2011 9:07:33 PM |
| 修稿时间： | 4/7/2011 10:16:55 PM |
The Study of 2-D nonlinear conjugate gradients Inversion of Underground magnetotelluric |
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| zhangkun and WEI Wenbo,Lv Qingtian,JIN Sheng.The Study of 2-D nonlinear conjugate gradients Inversion of Underground magnetotelluric[J].Acta Geologica Sinica,2011,85(5):915-924. |
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| Authors: | zhangkun and WEI Wenbo Lv Qingtian JIN Sheng |
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| Affiliation: | Institute of Mineral Resources Chinese Academy of Geological Sciences |
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| Abstract: | The algorithm and program of forwarding and inversion of magnetotelluric(MT) is proposed and verified. And provide the geophysics interpretation for borehole-to-Surface MT and controlled source audio MT(CSAMT) and make it more complete and effective. Deduce the nonlinear conjugate gradients(NLCG) algorithm on the basic of Rodi(2001), and improve the program to achieve seafloor condition. And verify the validity of the program. Finally, compare the forwarding and inversion on land with it in tunnel, and find that the noise is suppressed and the resolution is enhanced with setting the survey station underground. |
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| Keywords: | Uround Magnetotelluric Nonlinear Conjugate Gradient 2-D Inversion |
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