陈连木, 高龙飞, 吴萍萍. 复杂构造条件下不同插值方法对MT二维有限元正演模拟的影响[J]. 华北地震科学, 2018, 36(3): 12-19. DOI: 10.3969/j.issn.1003-1375.2018.03.002
引用本文: 陈连木, 高龙飞, 吴萍萍. 复杂构造条件下不同插值方法对MT二维有限元正演模拟的影响[J]. 华北地震科学, 2018, 36(3): 12-19. DOI: 10.3969/j.issn.1003-1375.2018.03.002
CHEN Lian-mu, GAO Long-fei, WU Ping-ping. The Influence of Different Interpolation Methods on the 2D Magnetotelluric Finite Element Forward Modeling under Complex Structural Conditions[J]. North China Earthquake Sciences, 2018, 36(3): 12-19. DOI: 10.3969/j.issn.1003-1375.2018.03.002
Citation: CHEN Lian-mu, GAO Long-fei, WU Ping-ping. The Influence of Different Interpolation Methods on the 2D Magnetotelluric Finite Element Forward Modeling under Complex Structural Conditions[J]. North China Earthquake Sciences, 2018, 36(3): 12-19. DOI: 10.3969/j.issn.1003-1375.2018.03.002

复杂构造条件下不同插值方法对MT二维有限元正演模拟的影响

The Influence of Different Interpolation Methods on the 2D Magnetotelluric Finite Element Forward Modeling under Complex Structural Conditions

  • 摘要: 以有限元法为基础,通过建立复杂的背斜模型、逆断层模型,比较了双线性插值和双二次插值方法对于复杂构造条件下的二维大地电磁正演模拟效果。结果显示,对于构造平缓的模型,2种插值方法均能较好地反映出模型的形态;对于构造起伏较大的模型,双二次插值法的效果要明显优于双线性插值法。

     

    Abstract: In this paper, we established a complex anticline model and a thrust model to compare them with the bilinear interpolation and quadratic interpolation method for complex structure under the condition of two-dimensionalmagnetotelluric forward modeling results based on the finite element method. The results indicated that the bilinear interpolation method and dual quadratic interpolation method can well reflect the shape of the model with relatively flat structure. While for the model with large fluctuation structure, double quadratic interpolation is a suitable method.

     

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