Anomalous vertical magnetic field for electromagnetic induction in a laterally varying thin conductive sheet
Article first published online: 7 DEC 2012
Copyright 1986 by the American Geophysical Union.
Volume 21, Issue 4, pages 617–621, July-August 1986
How to Cite
1986), Anomalous vertical magnetic field for electromagnetic induction in a laterally varying thin conductive sheet, Radio Sci., 21(4), 617–621, doi:10.1029/RS021i004p00617., and (
- Issue published online: 7 DEC 2012
- Article first published online: 7 DEC 2012
- Manuscript Accepted: 11 MAR 1986
- Manuscript Received: 26 NOV 1985
We employ a simple model to show how the natural electromagnetic field on the surface of the earth, which has a strong horizontal magnetic field component, can be converted to a significant vertical magnetic field at the surface. Such a conversion mechanism will be caused by lateral variations of the subsurface conductivity structure. Our idealized model is a thin conducting sheet with a periodic variation of the conductivity-thickness product in one horizontal direction only.