ELECTROMAGNETIC INDUCTION IN A SPHERICAL EARTH WITH NONUNIFORM OCEANS AND CONTINENTS IN ELECTRIC CONTACT WITH THE UNDERLYING MEDIUM .1. THEORY, METHOD AND EXAMPLE

被引：32

作者：

FAINBERG, EB

KUVSHINOV, AV

SINGER, BS

机构：

[1] Institute of Terrestrial Magnetism Ionosphere, Radiowave Propagation of the USSR Academy of Sciences, Moscow, 142092, Troitsk

来源：

GEOPHYSICAL JOURNAL INTERNATIONAL | 1990年 / 102卷 / 02期

关键词：

electromagnetic induction; iterative‐dissipative method; non‐uniform earth; numerical modelling;

D O I：

10.1111/j.1365-246X.1990.tb04465.x

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

This paper presents basic principles of the iterative‐dissipative method and main points of its numerical realization. A spherical earth model consisting of a thin non‐uniform surface layer being in galvanic contact with an underlying stratified medium is considered. The current system induced by a uniform magnetic field in the model with a realistic distribution of surface conductance is calculated. It is shown that leakage currents are significant even for the earth model with a highly resistive crust and upper mantle. Copyright © 1990, Wiley Blackwell. All rights reserved

引用

页码：273 / 281

页数：9

共 12 条

[1] ELECTROMAGNETIC INDUCTION IN THE OCEANS AND INFERENCES ON THE CONSTITUTION OF THE EARTH [J].

COX, C .

GEOPHYSICAL SURVEYS, 1980, 4 (1-2) :137-156

[2] ELECTROMAGNETIC INDUCTION IN A SPHERICAL MODEL OF THE EARTH WITH A REAL DISTRIBUTION OF NEAR-SURFACE CONDUCTIVITY [J].

FAINBERG, EB ;

ZINGER, BS .

PHYSICS OF THE EARTH AND PLANETARY INTERIORS, 1981, 25 (01) :52-56

[3] THE INFLUENCE OF SURFACE INHOMOGENEITIES ON DEEP ELECTROMAGNETIC SOUNDINGS OF THE EARTH [J].

FAINBERG, EB ;

SINGER, BS .

GEOPHYSICAL JOURNAL OF THE ROYAL ASTRONOMICAL SOCIETY, 1987, 90 (01) :61-73

[4] ELECTROMAGNETIC-FIELDS INDUCED IN THE WORLDS OCEANS AND THE SPATIAL-DISTRIBUTION OF ELECTRICAL-CONDUCTIVITY FUNCTIONS [J].

FAINBERG, EB ;

SINGER, BS ;

KUVSHINOV, AV .

PHYSICS OF THE EARTH AND PLANETARY INTERIORS, 1983, 32 (04) :293-300

[5]

FAINBERG EB, 1980, ANN GEOPHYS, V36, P127

[6]

FAINBERG EB, 1978, TOTAL LONGITUDINAL C

[7]

FAINBERG EB, 1983, MATEMATICHESKOE MODE, P79

[8]

JAMALETDINOV AA, 1982, DEEP ELECTROMAGNETIC, P35

[9] THE INDUCTION OF ELECTRIC CURRENTS IN NON-UNIFORM THIN SHEETS AND SHELLS [J].

PRICE, AT .

QUARTERLY JOURNAL OF MECHANICS AND APPLIED MATHEMATICS, 1949, 2 (03) :283-310

[10]

Singer B. Sh, 1985, ELECTROMAGNETIC INDU

← 1 2 →