半航空频率域电磁法二维正反演研究OA
2D forward and inversion study of semi-airborne electromagnetic method in the frequency domain
笔者介绍了频域半航空电磁法(SAEM)的二维正演与Occam反演算法,并通过对多种典型模型进行正演模拟,重点分析了不同参数(如电阻率、埋深、发射源位置)变化对垂直磁场分量(Bz)的影响.并通过对平地形和起伏地形模型的反演,研究了地形因素对反演结果的影响.二维模型在计算效率上有明显优势,能够降低计算和数据处理的复杂性,提供更快速、更准确的近似结果.本研究为半航空电磁法在复杂地形中的应用提供了参考,为相关领域的进一步研究奠定了基础.
This paper presents a two-dimensional(2D)forward modeling algorithm and the Occam inversion algorithm for the frequency-domain semi-airborne electromagnetic method(SAEM).Forward modeling simulations were conducted for several typical models to investigate the influence of various parameters(such as resistivity,burial depth,and source position)on the vertical magnetic field component(Bz).Inversion studies were conducted on both flat and undulating terrain models to assess the impact of topographic factors on inversion results.The 2D model offers significant computational efficiency,reducing the complexity of calculations and data processing while providing rapid,accurate approximate results.This study offers valuable insights into the application of the semi-airborne electromagnetic method in complex terrains and provides a foundation for further research in related fields.
TANG Yujie;YUE Yunbao;WU Hao;WANG Kunpeng
Key Laboratory of Earth Exploration and Information Techniques,Ministry of Education,Chengdu University of Technology,Chengdu 610059,ChinaSichuan Geophysical Survey Institute,Chengdu 610036,ChinaKey Laboratory of Earth Exploration and Information Techniques,Ministry of Education,Chengdu University of Technology,Chengdu 610059,ChinaKey Laboratory of Earth Exploration and Information Techniques,Ministry of Education,Chengdu University of Technology,Chengdu 610059,China
天文与地球科学
可控源电磁法半航空电磁法二维正反演
controlled-source electromagnetic methodsemi-airborne electromagnetic methodtwo-dimensional forward and inversion
《物探化探计算技术》 2026 (1)
78-86,9
地球深部探测与矿产资源勘查国家科技重大专项(2024ZD1002100)四川省科技厅青年基金(2024NSFSC0803)
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