Two Approaches for Modeling ELF Wave Propagation in the Earth-Ionosphere Cavity With Day-Night Asymmetry

被引:6
作者
Pracser, Erno [1 ]
Bozoki, Tamas [1 ,2 ]
Satori, Gabriella [1 ]
Takatsy, Janos [3 ,4 ]
Williams, Earle [5 ]
Guha, Anirban [6 ]
机构
[1] Res Ctr Astron & Earth Sci, Geodet & Geophys Inst, H-9400 Sopron, Hungary
[2] Univ Szeged, Doctoral Sch Environm Sci, H-6720 Szeged, Hungary
[3] Wigner Res Ctr Phys, Inst Particle & Nucl Phys, H-1121 Budapest, Hungary
[4] Eotvos Lorand Univ, Inst Phys, H-1117 Budapest, Hungary
[5] MIT, Parsons Lab, Cambridge, MA 02139 USA
[6] Tripura Univ, Ctr Lightning & Thunderstorm Studies, Dept Phys, Agartala 799022, India
基金
美国国家科学基金会;
关键词
Observers; Electromagnetic waveguides; Antennas; Mathematical model; Sun; Numerical models; Ground penetrating radar; Extremely low frequency (ELF); geoscience and remote sensing; radiowave propagation; transmission lines; cavity resonators; Schumann resonances (SRs); lightning; day-night asymmetry;
D O I
10.1109/TAP.2020.3044669
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
In this article, we introduce a lesser-known analytical treatment and a new numerical approach to model electromagnetic wave propagation in the lowest part of the extremely low-frequency (ELF) band (<100 Hz) that takes into consideration the day-night asymmetry of the Earth-ionosphere cavity. We present numerical tests showing that the two models produce practically the same output, i.e., the relative difference between them is less than 0.4%. Our result is an important step toward inferring the distribution and intensity of global lightning activity based on the Schumann resonance (SR) measurements, which is the main objective of our work.
引用
收藏
页码:4093 / 4099
页数:7
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