Preprints
https://doi.org/10.5194/angeo-2020-51
https://doi.org/10.5194/angeo-2020-51

  26 Aug 2020

26 Aug 2020

Review status: a revised version of this preprint is currently under review for the journal ANGEO.

Whistler waves produced by monochromatic currents in the low nighttime ionosphere

Vera G. Mizonova1,2 and Peter A. Bespalov3 Vera G. Mizonova and Peter A. Bespalov
  • 1Nyzhny Novgorod State Technical University, Nyzhny Novgorod, Russia
  • 2National Research University Higher School of Economics, Russia
  • 3Institute of Applied Physics RAS, Nizhny Novgorod, Russia

Abstract. We use a full-wave approach to find the field of monochromatic whistler waves which are excited and propagating in the low nighttime ionosphere. The source current is located in the horizontal plane and can have arbitrary distribution over horizontal coordinates. The ground-based horizontal magnetic field and electric field at 125 km are calculated. The character of wave polarization on the ground surface is investigated. The percentages of source energy supplied to the Earth-ionosphere waveguide and carried upward ionosphere are estimated. Received results are important for the analysis of ELF/VLF emission phenomena observed both on the satellites and on the ground.

Vera G. Mizonova and Peter A. Bespalov

 
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Vera G. Mizonova and Peter A. Bespalov

Vera G. Mizonova and Peter A. Bespalov

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Short summary
The paper discusses the excitation of monochromatic ELF/VLF electromagnetic waves produced by HF heating facilities currents in the nighttime ionosphere. The ground-based magnetic field is predominantly located under the source and wave has typical for whistler right hand polarization, but left hand polarization at large distances from the source. About half of the source energy propagates upward and approximately twenty percent propagates to the Earth-ionosphere waveguide.