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Modeling the electromagnetic field of distant sources in a nonhomogeneous medium

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Asymptotic formulas are derived for calculating the far-zone field inside a layered medium induced by a vertical magnetic dipole located on the surface of a horizontally homogeneous layered Earth with a three-dimensional nonhomogeneity. The asymptotic solution is compared with the exact solution. The far-zone dipole field is simulated for the model of a horizontally homogeneous layered earth with a three-dimensional nonhomogeneity. The simulation results show that the 3D-nonhomogeneity is easily detected from electromagnetic measurements with an artificial dipole source on the Earth’s surface.

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References

  1. V. I. Dmitriev, “Modeling the effect of the ionosphere on electromagnetic sounding,” Prikl. Matem. i Informatika, No. 31, 44–53 (2009)

  2. A. N. Tikhonov, “Asymptotic behavior of integrals containing Bessel functions,” Dokl. AN SSSR, 125, No. 5, 982–985.

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Authors and Affiliations

  1. Faculty of Computational Mathematics and Cybernetics, Moscow State University, Moscow, Russia

    I. S. Barashkov & V. I. Dmitriev

Authors
  1. I. S. Barashkov
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  2. V. I. Dmitriev
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Correspondence to I. S. Barashkov.

Additional information

Translated from Prikladnaya Matematika i Informatika, No. 32, pp. 20–31, 2009.

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Barashkov, I.S., Dmitriev, V.I. Modeling the electromagnetic field of distant sources in a nonhomogeneous medium. Comput Math Model 21, 18–29 (2010). https://doi.org/10.1007/s10598-010-9051-0

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  • DOI: https://doi.org/10.1007/s10598-010-9051-0

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