Abstract: On the basis of the magnetotelluric curve comparison method inversion, we introduce phase information into the inversion procedure. It means inserting phase correction parameter into apparent resistivity correction element during the inversion, which makes the program more rapid and the procedure more robust. Comparing with other inversion methods of model research, the result of using curve comparision method with phase information can represent the electrical property distribution of the model correctly, and can be used as the initial model of multi-dimension inversion.

Key words: Magnetotelluric, Curve comparison method, Phase information, Resistivity pseudo-section

摘要： 在大地电磁连续介质曲线对比法反演的基础上,引入了相位信息,即在反演的模型视电阻率的修改量中加入了相位改正量,从而提高了收敛速度,稳定了反演过程。与其他方法的模型研究比较,加入相位信息的曲线对比法反演的结果,能够较真实地反映模型的电性分布,并可为多维反演提供初始模型。

关键词: 大地电磁, 曲线对比法, 相位, 拟二维电阻率断面