Modeling of the Auroral Hiss Propagation from the Source Region to the Ground

A numerical model of auroral hiss propagation from the region of its generation to the ground surface is developed for the interpretation of results from ground-based high-latitudinal VLF observations. The model includes modules describing the statistical properties of electrostatic whistler waves g...

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Bibliographic Details
Published in:Geomagnetism and Aeronomy 2019-09, Vol.59 (5), p.577-586
Main Authors: Lebed’, O. M., Fedorenko, Yu. V., Manninen, J., Kleimenova, N. G., Nikitenko, A. S.
Format: Article
Language:English
Subjects:
Auroral hiss
Earth and Environmental Science
Earth Sciences
Electrostatic waves
Geophysics/Geodesy
Ground-based observation
Hiss
Ionosphere
Ionospheric propagation
Irregularities
Lower ionosphere
Magnetospheres
Mathematical models
Numerical models
Propagation
Transition cones
Upper ionosphere
Whistler waves
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Summary:A numerical model of auroral hiss propagation from the region of its generation to the ground surface is developed for the interpretation of results from ground-based high-latitudinal VLF observations. The model includes modules describing the statistical properties of electrostatic whistler waves generated due to Cerenkov resonance at the heights of 6000–20 000 km, the propagation of these waves in the magnetosphere to the region of upper ionosphere (under 5000 km), which is filled with small-scale irregularities of electron concentration, the scattering of electrostatic waves from these irregularities into the transition cone, and further propagation of the waves through the lower ionosphere down to the ground surface. The modeling results agree with the observations.
ISSN:0016-7932
1555-645X
0016-7940
DOI:10.1134/S0016793219050074