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Characteristics of Vlf Atmospherics Near the Resonance Frequency of the Earth-ionosphere Waveguide 1.6–2.3 Khz by Observations in the Auroral Region : Volume 28, Issue 1 (20/01/2010)

By Ostapenko, A. A.

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Book Id: WPLBN0003974417
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Reproduction Date: 2015

Title: Characteristics of Vlf Atmospherics Near the Resonance Frequency of the Earth-ionosphere Waveguide 1.6–2.3 Khz by Observations in the Auroral Region : Volume 28, Issue 1 (20/01/2010)  
Author: Ostapenko, A. A.
Volume: Vol. 28, Issue 1
Language: English
Subject: Science, Annales, Geophysicae
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Historic
Publication Date:
2010
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

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Nickolaenko, A. P., Raita, T., Titova, E. E., Turunen, T., Ostapenko, A. A., & Manninen, J. (2010). Characteristics of Vlf Atmospherics Near the Resonance Frequency of the Earth-ionosphere Waveguide 1.6–2.3 Khz by Observations in the Auroral Region : Volume 28, Issue 1 (20/01/2010). Retrieved from http://members.worldlibrary.net/


Description
Description: Polar Geophysical Institute, Kola Scientific Centre of Russian Academy of Sciences, Apatity 184200, Russia. Recordings of ELF-VLF waves with the right-hand (RH) and the left-hand (LH) circular polarization were made in Northern Finland. Analysis showed a difference between the RH and LH polarized waves. A pronounced maximum of the wave amplitude was observed at the first critical frequency of the Earth-ionosphere waveguide (the first transverse resonance) around 1.6–2.3 kHz. The wave had the circular LH polarization at this maximum. To interpret observations, we computed the characteristics of the waveguide modes by using the full wave solution in the night model of the ionosphere. Computations show that the spectral maximum at the first transverse resonance frequency arises from a small absorption of the LH polarized radio wave in the magnetized ionosphere plasma, forming the upper boundary of the Earth-ionosphere waveguide.

Summary
Characteristics of VLF atmospherics near the resonance frequency of the Earth-ionosphere waveguide 1.6–2.3 kHz by observations in the auroral region

Excerpt
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