Low-frequency (ELF–VLF) radio atmospherics study at the Ukrainian Antarctic Akademik Vernadsky station
This paper describes the results of the atmospherics measurements in the extremely low-frequency (ELF) and very low-frequency (VLF) frequency ranges performed at the Akademik Vernadsky station (64.26W; 65.25S) during February–April 2019. The main objective of the study was the implementation of a si...
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State Institution National Antarctic Scientific Center
2019
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Online Access: | https://doi.org/10.33275/1727-7485.1(18).2019.136 https://doaj.org/article/a15b5c2c96b0443fa3da9c9a830fe095 |
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ftdoajarticles:oai:doaj.org/article:a15b5c2c96b0443fa3da9c9a830fe095 2023-05-15T14:06:37+02:00 Low-frequency (ELF–VLF) radio atmospherics study at the Ukrainian Antarctic Akademik Vernadsky station A. V. Shvets A. P. Nickolaenko A. V. Koloskov Yu. M. Yampolsky O. V. Budanov A. A. Shvets 2019-12-01T00:00:00Z https://doi.org/10.33275/1727-7485.1(18).2019.136 https://doaj.org/article/a15b5c2c96b0443fa3da9c9a830fe095 EN UK eng ukr State Institution National Antarctic Scientific Center http://uaj.uac.gov.ua/index.php/uaj/article/view/136 https://doaj.org/toc/1727-7485 https://doaj.org/toc/2415-3087 1727-7485 2415-3087 doi:10.33275/1727-7485.1(18).2019.136 https://doaj.org/article/a15b5c2c96b0443fa3da9c9a830fe095 Український антарктичний журнал, Iss 1(18), Pp 116-127 (2019) elf transient single-site technique lightning location elf-vlf radio waves earth-ionosphere waveguide tweekatmospheric lower ionosphere Meteorology. Climatology QC851-999 Geophysics. Cosmic physics QC801-809 article 2019 ftdoajarticles https://doi.org/10.33275/1727-7485.1(18).2019.136 2022-12-31T13:40:36Z This paper describes the results of the atmospherics measurements in the extremely low-frequency (ELF) and very low-frequency (VLF) frequency ranges performed at the Akademik Vernadsky station (64.26W; 65.25S) during February–April 2019. The main objective of the study was the implementation of a single-site technique for monitoring the lower ionosphere parameters and locating globally distributed powerful lightning discharges. Methods. The receiving and analyzing VLF complex was used at the station to record two horizontal magnetic and vertical electric components of atmospherics in the frequency range 750 Hz – 24 kHz. A single-site lightning location method is based on the analysis of tweek-atmospherics (tweeks).It was implemented in the receiving system software. This allowed obtaining real-time information about lightning position, height and electron density variations in the lower ionosphere.The records of VLF atmospherics were synchronized via GPS timestamps with records of ELF transients resulted from globally distributed powerful lightning discharges. Results of analysis of tweeks recorded at the Akademik Vernadsky station indicates that lightning discharges are registered at distances from 2,000 km to about 10,000 km within the azimuthal sector, covering almost the entire South American continent, southern Africa and the Gulf of Guinea. Practically, no tweeks from the Pacific were recorded. This can be attributed to the non-reciprocity of attenuation of radio waves propagating in the west-east and east-west directions. In addition to the fundamental mode, we observed also the second and higher order modes of tweeks. This allowed estimating the lower boundary altitude and the electron density in the lower ionosphere. We demonstrated the advantages of simultaneous recordings of VLF atmospherics and ELF transients. Employing the vertical electric and two horizontal magnetic components measured by the VLF complex allowed for more accurate and unambiguous determining the source azimuth and resolving ... Article in Journal/Newspaper Antarc* Antarctic Directory of Open Access Journals: DOAJ Articles Antarctic Pacific Vernadsky Station ENVELOPE(-64.257,-64.257,-65.245,-65.245) Akademik Vernadsky Station ENVELOPE(-64.256,-64.256,-65.246,-65.246) Ukrainian Antarctic Journal 1(18) 116 127 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English Ukrainian |
topic |
elf transient single-site technique lightning location elf-vlf radio waves earth-ionosphere waveguide tweekatmospheric lower ionosphere Meteorology. Climatology QC851-999 Geophysics. Cosmic physics QC801-809 |
spellingShingle |
elf transient single-site technique lightning location elf-vlf radio waves earth-ionosphere waveguide tweekatmospheric lower ionosphere Meteorology. Climatology QC851-999 Geophysics. Cosmic physics QC801-809 A. V. Shvets A. P. Nickolaenko A. V. Koloskov Yu. M. Yampolsky O. V. Budanov A. A. Shvets Low-frequency (ELF–VLF) radio atmospherics study at the Ukrainian Antarctic Akademik Vernadsky station |
topic_facet |
elf transient single-site technique lightning location elf-vlf radio waves earth-ionosphere waveguide tweekatmospheric lower ionosphere Meteorology. Climatology QC851-999 Geophysics. Cosmic physics QC801-809 |
description |
This paper describes the results of the atmospherics measurements in the extremely low-frequency (ELF) and very low-frequency (VLF) frequency ranges performed at the Akademik Vernadsky station (64.26W; 65.25S) during February–April 2019. The main objective of the study was the implementation of a single-site technique for monitoring the lower ionosphere parameters and locating globally distributed powerful lightning discharges. Methods. The receiving and analyzing VLF complex was used at the station to record two horizontal magnetic and vertical electric components of atmospherics in the frequency range 750 Hz – 24 kHz. A single-site lightning location method is based on the analysis of tweek-atmospherics (tweeks).It was implemented in the receiving system software. This allowed obtaining real-time information about lightning position, height and electron density variations in the lower ionosphere.The records of VLF atmospherics were synchronized via GPS timestamps with records of ELF transients resulted from globally distributed powerful lightning discharges. Results of analysis of tweeks recorded at the Akademik Vernadsky station indicates that lightning discharges are registered at distances from 2,000 km to about 10,000 km within the azimuthal sector, covering almost the entire South American continent, southern Africa and the Gulf of Guinea. Practically, no tweeks from the Pacific were recorded. This can be attributed to the non-reciprocity of attenuation of radio waves propagating in the west-east and east-west directions. In addition to the fundamental mode, we observed also the second and higher order modes of tweeks. This allowed estimating the lower boundary altitude and the electron density in the lower ionosphere. We demonstrated the advantages of simultaneous recordings of VLF atmospherics and ELF transients. Employing the vertical electric and two horizontal magnetic components measured by the VLF complex allowed for more accurate and unambiguous determining the source azimuth and resolving ... |
format |
Article in Journal/Newspaper |
author |
A. V. Shvets A. P. Nickolaenko A. V. Koloskov Yu. M. Yampolsky O. V. Budanov A. A. Shvets |
author_facet |
A. V. Shvets A. P. Nickolaenko A. V. Koloskov Yu. M. Yampolsky O. V. Budanov A. A. Shvets |
author_sort |
A. V. Shvets |
title |
Low-frequency (ELF–VLF) radio atmospherics study at the Ukrainian Antarctic Akademik Vernadsky station |
title_short |
Low-frequency (ELF–VLF) radio atmospherics study at the Ukrainian Antarctic Akademik Vernadsky station |
title_full |
Low-frequency (ELF–VLF) radio atmospherics study at the Ukrainian Antarctic Akademik Vernadsky station |
title_fullStr |
Low-frequency (ELF–VLF) radio atmospherics study at the Ukrainian Antarctic Akademik Vernadsky station |
title_full_unstemmed |
Low-frequency (ELF–VLF) radio atmospherics study at the Ukrainian Antarctic Akademik Vernadsky station |
title_sort |
low-frequency (elf–vlf) radio atmospherics study at the ukrainian antarctic akademik vernadsky station |
publisher |
State Institution National Antarctic Scientific Center |
publishDate |
2019 |
url |
https://doi.org/10.33275/1727-7485.1(18).2019.136 https://doaj.org/article/a15b5c2c96b0443fa3da9c9a830fe095 |
long_lat |
ENVELOPE(-64.257,-64.257,-65.245,-65.245) ENVELOPE(-64.256,-64.256,-65.246,-65.246) |
geographic |
Antarctic Pacific Vernadsky Station Akademik Vernadsky Station |
geographic_facet |
Antarctic Pacific Vernadsky Station Akademik Vernadsky Station |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
Український антарктичний журнал, Iss 1(18), Pp 116-127 (2019) |
op_relation |
http://uaj.uac.gov.ua/index.php/uaj/article/view/136 https://doaj.org/toc/1727-7485 https://doaj.org/toc/2415-3087 1727-7485 2415-3087 doi:10.33275/1727-7485.1(18).2019.136 https://doaj.org/article/a15b5c2c96b0443fa3da9c9a830fe095 |
op_doi |
https://doi.org/10.33275/1727-7485.1(18).2019.136 |
container_title |
Ukrainian Antarctic Journal |
container_issue |
1(18) |
container_start_page |
116 |
op_container_end_page |
127 |
_version_ |
1766278613797175296 |