Academic Journal
Model of propagation of VLF beams in the waveguide earth-ionosphere. Principles of tensor impedance method in multilayered gyrotropic waveguides
| العنوان: | Model of propagation of VLF beams in the waveguide earth-ionosphere. Principles of tensor impedance method in multilayered gyrotropic waveguides |
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| المؤلفون: | Rapoport, Y., Grimalsky, V., Fedun, V., Agapitov, O., Bonnell, J., Grytsai, A., Milinevsky, G., Liashchuk, A., Rozhnoi, A., Solovieva, M., Gulin, A. |
| بيانات النشر: | Copernicus Publications |
| سنة النشر: | 2020 |
| المجموعة: | White Rose Research Online (Universities of Leeds, Sheffield & York) |
| الوصف: | Modeling propagation of VLF electromagnetic beams in the waveguide earth-ionosphere (WGEI) is of a great importance because variation in the characteristics of these waves is an effective instrument for diagnostics the influences on the ionosphere from above (Sun-Solar Wind-Magnetosphere-Ionosphere), from below (the most powerful meteorological, seismogenic and other sources in the lower atmosphere and lithosphere/Earth, such as hurricanes, earthquakes, tsunamis etc.), from inside the ionosphere (strong thunderstorms and lightning discharges) and even from the far space (such as gamma-flashes, cosmic rays etc.). Thus, VLF became one of the most universal instrument for monitoringthe Space Weather in the direct sense of this term, i.e. the state of the Sun-Earth space and the ionosphere as it is particularly determined by all possible relatively powerful sources, wherever they are placed. This paper is devoted mostly to modelling VLF electromagnetic beam propagation in the WGEI. We present a new tensor impedance method for modelling propagation of electromagnetic beams (TIMEB) in a multi-layered/inhomogeneous waveguide. Suppose that such a waveguide, i.e. WGEI, possesses the gyrotropy and inhomogeneity with a thick cover layer placed above the waveguide. Note a very useful and attractive feature of the proposed TIMEB method: in spite of a large thickness of the waveguide cover layer, the proposed effective impedance approach reflects an impact of such a cover on the electromagnetic (EM) waves, which propagate in the waveguide. This impedance approach can be applied for EM waves/beams in layered gyrotropic/anisotropic active media in very wide frequency range, from VLF to optics. Moreover, this approach can be applied to calculations of EM waves/beams propagation in the media of an artificial origin such as metamaterial microwave or optical waveguides. The results of the modelling the propagation of VLF beams in the WGEI are included. The qualitative comparison between the theory and experimental observation of ... |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | text |
| اللغة: | English |
| Relation: | https://eprints.whiterose.ac.uk/152007/1/angeo-2019-46.pdf; Rapoport, Y., Grimalsky, V., Fedun, V. orcid.org/0000-0002-0893-7346 et al. (8 more authors) (2020) Model of propagation of VLF beams in the waveguide earth-ionosphere. Principles of tensor impedance method in multilayered gyrotropic waveguides. Annales Geophysicae, 38 (1). pp. 207-230. ISSN 0992-7689 |
| الاتاحة: | https://eprints.whiterose.ac.uk/152007/ https://eprints.whiterose.ac.uk/152007/1/angeo-2019-46.pdf |
| Rights: | cc_by_4 |
| رقم الانضمام: | edsbas.D8EF40B4 |
| قاعدة البيانات: | BASE |
| الوصف غير متاح. |