Recording the Vertical Component of the Electric Field in Magnetotelluric Sounding

被引：1

作者：

Plotkin, V. V. ^{[1
]}

Mogilatov, S. ^{[1
,2
]}

机构：

[1] Russian Acad Sci, Siberian Branch, Trofimuk Inst Petr Geol & Geophys, Pr Akad Koptyuga 3, Novosibirsk 630090, Russia

[2] Novosibirsk State Univ, Ul Phogova 1, Novosibirsk 630090, Russia

来源：

RUSSIAN GEOLOGY AND GEOPHYSICS | 2020年 / 61卷 / 02期

基金：

俄罗斯科学基金会;

关键词：

magnetotelluric sounding; electrical conductivity; circular electric dipole; distortion of apparent resistivity curves; vertical component of electric field; NEAR-SURFACE INHOMOGENEITIES; RESPONSES;

D O I：

10.15372/RGG2019097

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Magnetotelluric sounding (MTS) usually records variations in five components of the electromagnetic field. Interpretation of distorted MT responses of an inhomogeneous earth may be problematic. The problem can be solved by recording additionally the vertical component Ez of the electric field in order to improve the quality of inversion and to gain more information. Currently Ez variations are estimated by measuring voltage on a vertical line immersed in water. The land measurements of this kind require special drilling or using the existing boreholes, which is not always feasible. Otherwise, a circular electric dipole (CED) can be used as a receiver to record the electric field behavior along the vertical component. Its applicability to MT soundings is analyzed in this paper.

引用

下载

页码：234 / 240

页数：7

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