Electric and Magnetic Fields at the Earth's Surface Due to Auroral Currents
- 1 April 1970
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Power Apparatus and Systems
- Vol. PAS-89 (4) , 578-584
- https://doi.org/10.1109/tpas.1970.292604
Abstract
The horizontal components of the electric and magnetic fields due to auroral atmospheric currents are calculated at the surface of the earth. For sinusoidal changes in the earth's magnetic field (Fourier frequency components of actual nonsinusoidal variations), a lower limit of the corresponding earth-surface potential is obtained by considering a line-type auroral current over a nonuniform stratified earth. An upper limit of the earth-surface potential is obtained by considering a current-sheet model of the auroral current, and the same model of the earth. A diagram is constructed that allows calculation of the earth-surface potential for given variations in the earth's magnetic field. Finally, the influence of the earth-surface potential on electric power systems is discussed.Keywords
This publication has 5 references indexed in Scilit:
- Method of interpretation of magnetotelluric data when source field is consideredJournal of Geophysical Research, 1965
- The theory of magnetotelluric methods when the source field is consideredJournal of Geophysical Research, 1962
- An Effective Ground Conductivity Map for Continental United StatesProceedings of the IRE, 1954
- ELECTROMAGNETIC INDUCTION IN A SEMI-INFINITE CONDUCTOR WITH A PLANE BOUNDARYThe Quarterly Journal of Mechanics and Applied Mathematics, 1950
- The Geographic Incidence of Aurora and Magnetic Disturbance, Northern HemisphereTerrestrial Magnetism and Atmospheric Electricity, 1944