Summary
The radiation fields of a vertical electric antenna situated on a horizontally stratified ground are discussed. The attenuation and “wave-tilt” of the surface wave and the “height-gain” factor are shown to be a function of the horizontal stratification in the ground. It is possible that the results have application to an airborne geophysical exploration scheme.
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References
Barrett, W. M. (1949),Salt mine test proves earth penetration by radio waves, World Petroleum, vol. 20, N. 3, pp. 62–63.
Burrows, C. R. &Gray, M. C. (1941),The effect of the earth's curvature on ground wave propagation, Proc. Inst. Radio Engrs. vol. 29, pp. 16–30.
Clemmow, P. C. (1950),Some extensions to the method of integration by steepest descents, Quart. Jour. and Appl. Mech., vol. 3, pp. 241–256.
Clemmow, P. C. (1953),Propagation of radio waves over a flat earth across a boundary, Phil. Trans. Roy. Soc. of London, vol. 246, pp. 1–55.
Eve, A. S. &Keys, D. A. (1932),Geophysical Investigations at the Mammoth Cave, Kentucky, and at Falconbridge Mine, Ontario; Canadian Dept. of Mines and Geol. Survey, Memoir 170, pp. 1–64.
Fritsch, V. (1939),Influence of subterranean geological characteristics on the propagation of electromagnetic waves, Telegraphen-Fersprech-Funk-Fernseh-Technik, vol. 28, pp. 427–33.
Kennelly, A. E. (1927),Tables and Charts of Complex Hyperbolic and Circular Functions, Cambridge, Harvard University Press.
Norton, K. A. (1941),The calculation of the ground wave field Intensity, Proc. Inst. Rad. Engrs., vol. 29, pp. 723–739.
Petrowsky, A. (1933),Electromagnetic wave prospecting in the USSR, Gerlands Beitr. Geophys., vol. 3, N. 2 (see also Science Abstracts, Sec. A June 1933).
Pritchett, W. C. (1952),Attenuation of Radio Waves through the Earth, Geophysics, vol. 17, pp. 214–224.
Sommerfeld, A. N. (1926),Ueber die Ausbreitung der Wellen in der drahtlosen Telegraphie, Ann. der Phys., vol. 81, pp. 1135–1155.
Van der Waerden, B. L. (1950),On the method of saddle points, Appl. Sci. Res. Vol. B-2, pp. 33–45.
Wait, J. R., (1953-a),Propagation of radio waves over a stratified ground, Geophysics, Vol. 18, pp. 416–422.
Wait, J. R. (1953-b),Radiation from a vertical dipole over a horizontally stratified ground, Trans. Inst. Rad. Engrs. vol. AP-1, pp. 9–12.
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Wait, J.R. Theory of electromagnetic surface waves over geological conductors. Geofisica Pura e Applicata 28, 47–56 (1954). https://doi.org/10.1007/BF01992391
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DOI: https://doi.org/10.1007/BF01992391