Articles | Volume 35, issue 3
https://doi.org/10.5194/angeo-35-671-2017
https://doi.org/10.5194/angeo-35-671-2017
ANGEO Communicates
 | 
22 May 2017
ANGEO Communicates |  | 22 May 2017

Propagation of a whistler wave incident from above on the lower nighttime ionosphere

Peter Bespalov and Vera Mizonova

Abstract. The problems of reflection and transmission of a whistler wave incident in the nighttime ionosphere from above are considered. Numerical solution of the wave equations for a typical condition of the lower ionosphere is found. The solution area comprises both the region of strong wave refraction and a sharp boundary of the nighttime ionosphere (∼ 100 km). The energy reflection coefficient and horizontal wave magnetic field on the ground surface are calculated. The results obtained are important for analysis of the extremely low-frequency and very low-frequency (ELF–VLF) emission phenomena observed from both the satellites and the ground-based observatories.

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Short summary
The problems of reflection and transmission of a whistler wave incident in the nighttime ionosphere from above are considered. Numerical solutions of the wave equations for a typical condition of the lower ionosphere are found. The energy reflection coefficient and horizontal wave magnetic field on the ground surface are calculated. The obtained results are important for analysis of the ELF–VLF emission phenomena observed from both the satellites and the ground-based observatories.