Open AccessThe Perturbations of Alternating Geomagnetic Fields by Conductivity Anomalies
Author(s) -
Jones F. Walter,
Price Albert T.
Publication year - 1970
Publication title -
geophysical journal of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.302
H-Index - 168
eISSN - 1365-246X
pISSN - 0016-8009
DOI - 10.1111/j.1365-246x.1970.tb06073.x
Subject(s) - discontinuity (linguistics) , geophysics , conductivity , earth's magnetic field , perturbation (astronomy) , conductor , polarization (electrochemistry) , geology , boundary value problem , magnetic field , current (fluid) , mathematical analysis , physics , mathematics , geometry , chemistry , oceanography , quantum mechanics
Summary The two‐dimensional problems of interest in studying the perturbation of alternating electric current by a sharp discontinuity of conductivity in a conductor are considered, and their applicability to geophysical problems discussed. A numerical method has been developed for solving the appropriate differential equations and boundary conditions. The method has been applied to a vertical discontinuity in conductivity such as at a continental‐oceanic interface. The two polarization cases are solved, and the fields and current distributions are determined in detail.