Characteristics of VLF atmospherics near the resonance frequency of the Earth-ionosphere waveguide 1.6–2.3 kHz by observations in the auroral region
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-io...
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Online Access: | https://doi.org/10.5194/angeo-28-193-2010 https://doaj.org/article/ac983a4d32d74a9692aadca1f70c3f32 |
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ftdoajarticles:oai:doaj.org/article:ac983a4d32d74a9692aadca1f70c3f32 2023-05-15T17:42:27+02:00 Characteristics of VLF atmospherics near the resonance frequency of the Earth-ionosphere waveguide 1.6–2.3 kHz by observations in the auroral region A. A. Ostapenko E. E. Titova A. P. Nickolaenko T. Turunen J. Manninen T. Raita 2010-01-01T00:00:00Z https://doi.org/10.5194/angeo-28-193-2010 https://doaj.org/article/ac983a4d32d74a9692aadca1f70c3f32 EN eng Copernicus Publications https://www.ann-geophys.net/28/193/2010/angeo-28-193-2010.pdf https://doaj.org/toc/0992-7689 https://doaj.org/toc/1432-0576 doi:10.5194/angeo-28-193-2010 0992-7689 1432-0576 https://doaj.org/article/ac983a4d32d74a9692aadca1f70c3f32 Annales Geophysicae, Vol 28, Pp 193-202 (2010) Science Q Physics QC1-999 Geophysics. Cosmic physics QC801-809 article 2010 ftdoajarticles https://doi.org/10.5194/angeo-28-193-2010 2022-12-31T08:29:15Z 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. Article in Journal/Newspaper Northern Finland Directory of Open Access Journals: DOAJ Articles Annales Geophysicae 28 1 193 202 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Science Q Physics QC1-999 Geophysics. Cosmic physics QC801-809 |
spellingShingle |
Science Q Physics QC1-999 Geophysics. Cosmic physics QC801-809 A. A. Ostapenko E. E. Titova A. P. Nickolaenko T. Turunen J. Manninen T. Raita Characteristics of VLF atmospherics near the resonance frequency of the Earth-ionosphere waveguide 1.6–2.3 kHz by observations in the auroral region |
topic_facet |
Science Q Physics QC1-999 Geophysics. Cosmic physics QC801-809 |
description |
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. |
format |
Article in Journal/Newspaper |
author |
A. A. Ostapenko E. E. Titova A. P. Nickolaenko T. Turunen J. Manninen T. Raita |
author_facet |
A. A. Ostapenko E. E. Titova A. P. Nickolaenko T. Turunen J. Manninen T. Raita |
author_sort |
A. A. Ostapenko |
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 |
title_short |
Characteristics of VLF atmospherics near the resonance frequency of the Earth-ionosphere waveguide 1.6–2.3 kHz by observations in the auroral region |
title_full |
Characteristics of VLF atmospherics near the resonance frequency of the Earth-ionosphere waveguide 1.6–2.3 kHz by observations in the auroral region |
title_fullStr |
Characteristics of VLF atmospherics near the resonance frequency of the Earth-ionosphere waveguide 1.6–2.3 kHz by observations in the auroral region |
title_full_unstemmed |
Characteristics of VLF atmospherics near the resonance frequency of the Earth-ionosphere waveguide 1.6–2.3 kHz by observations in the auroral region |
title_sort |
characteristics of vlf atmospherics near the resonance frequency of the earth-ionosphere waveguide 1.6–2.3 khz by observations in the auroral region |
publisher |
Copernicus Publications |
publishDate |
2010 |
url |
https://doi.org/10.5194/angeo-28-193-2010 https://doaj.org/article/ac983a4d32d74a9692aadca1f70c3f32 |
genre |
Northern Finland |
genre_facet |
Northern Finland |
op_source |
Annales Geophysicae, Vol 28, Pp 193-202 (2010) |
op_relation |
https://www.ann-geophys.net/28/193/2010/angeo-28-193-2010.pdf https://doaj.org/toc/0992-7689 https://doaj.org/toc/1432-0576 doi:10.5194/angeo-28-193-2010 0992-7689 1432-0576 https://doaj.org/article/ac983a4d32d74a9692aadca1f70c3f32 |
op_doi |
https://doi.org/10.5194/angeo-28-193-2010 |
container_title |
Annales Geophysicae |
container_volume |
28 |
container_issue |
1 |
container_start_page |
193 |
op_container_end_page |
202 |
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1766144314886324224 |