Articles | Volume 40, issue 3
Ann. Geophys., 40, 395–406, 2022
https://doi.org/10.5194/angeo-40-395-2022
Ann. Geophys., 40, 395–406, 2022
https://doi.org/10.5194/angeo-40-395-2022
Regular paper
15 Jun 2022
Regular paper | 15 Jun 2022

Finite-difference time-domain analysis of ELF radio wave propagation in the spherical Earth–ionosphere waveguide and its validation based on analytical solutions

Volodymyr Marchenko et al.

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Short summary
We developed a new approach for validation of the numerical models of electromagnetic wave propagation in the Earth–ionosphere waveguide. We compared the parameters of the waveguide (i.e., characteristic electric and magnetic altitudes, resonance frequencies, phase velocity, and attenuation rate) obtained from numerical models with correspondent analytical calculations. We tested such validation for various conductivity profiles and found good agreement between analytical and numerical results.