Ionospheric 14.5 Day Periodic Oscillation during the 2019 Antarctic SSW Event
The International Global Navigation Satellite Systems Service (IGS) ionospheric total electron content (TEC) data are used to study the periodic perturbation in the ionosphere during the 2019 Antarctic sudden stratospheric warming (SSW) event, a rare Southern Hemisphere minor SSW event in the last 4...
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Online Access: | https://doi.org/10.3390/atmos14050796 |
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ftmdpi:oai:mdpi.com:/2073-4433/14/5/796/ 2023-08-20T04:00:25+02:00 Ionospheric 14.5 Day Periodic Oscillation during the 2019 Antarctic SSW Event Jinze Li Qiong Tang Yiyun Wu Chen Zhou Yi Liu agris 2023-04-27 application/pdf https://doi.org/10.3390/atmos14050796 EN eng Multidisciplinary Digital Publishing Institute Upper Atmosphere https://dx.doi.org/10.3390/atmos14050796 https://creativecommons.org/licenses/by/4.0/ Atmosphere; Volume 14; Issue 5; Pages: 796 sudden stratospheric warming IGS ionospheric total electron content 14.5 day periodic oscillation Text 2023 ftmdpi https://doi.org/10.3390/atmos14050796 2023-08-01T09:52:08Z The International Global Navigation Satellite Systems Service (IGS) ionospheric total electron content (TEC) data are used to study the periodic perturbation in the ionosphere during the 2019 Antarctic sudden stratospheric warming (SSW) event, a rare Southern Hemisphere minor SSW event in the last 40 years. A 14.5 day periodic signal with a zonal wavenumber of 0 is observed in the mesosphere and the lower thermosphere (MLT) region and the ionosphere during this SSW period, which could be related to the lunar tide. The 14.5 day periodic disturbance in the IGS TEC exhibits local time dependence and latitudinal variation, with the maximum amplitude appearing between 1000 and 1600 LT in the equatorial ionization anomaly (EIA) crest regions. Additionally, the 14.5 day periodic oscillation shows an obvious longitudinal variability, with the weakest amplitude appearing in the longitudinal region of 30° W–60° E. Text Antarc* Antarctic MDPI Open Access Publishing Antarctic Eia ENVELOPE(7.755,7.755,63.024,63.024) Atmosphere 14 5 796 |
institution |
Open Polar |
collection |
MDPI Open Access Publishing |
op_collection_id |
ftmdpi |
language |
English |
topic |
sudden stratospheric warming IGS ionospheric total electron content 14.5 day periodic oscillation |
spellingShingle |
sudden stratospheric warming IGS ionospheric total electron content 14.5 day periodic oscillation Jinze Li Qiong Tang Yiyun Wu Chen Zhou Yi Liu Ionospheric 14.5 Day Periodic Oscillation during the 2019 Antarctic SSW Event |
topic_facet |
sudden stratospheric warming IGS ionospheric total electron content 14.5 day periodic oscillation |
description |
The International Global Navigation Satellite Systems Service (IGS) ionospheric total electron content (TEC) data are used to study the periodic perturbation in the ionosphere during the 2019 Antarctic sudden stratospheric warming (SSW) event, a rare Southern Hemisphere minor SSW event in the last 40 years. A 14.5 day periodic signal with a zonal wavenumber of 0 is observed in the mesosphere and the lower thermosphere (MLT) region and the ionosphere during this SSW period, which could be related to the lunar tide. The 14.5 day periodic disturbance in the IGS TEC exhibits local time dependence and latitudinal variation, with the maximum amplitude appearing between 1000 and 1600 LT in the equatorial ionization anomaly (EIA) crest regions. Additionally, the 14.5 day periodic oscillation shows an obvious longitudinal variability, with the weakest amplitude appearing in the longitudinal region of 30° W–60° E. |
format |
Text |
author |
Jinze Li Qiong Tang Yiyun Wu Chen Zhou Yi Liu |
author_facet |
Jinze Li Qiong Tang Yiyun Wu Chen Zhou Yi Liu |
author_sort |
Jinze Li |
title |
Ionospheric 14.5 Day Periodic Oscillation during the 2019 Antarctic SSW Event |
title_short |
Ionospheric 14.5 Day Periodic Oscillation during the 2019 Antarctic SSW Event |
title_full |
Ionospheric 14.5 Day Periodic Oscillation during the 2019 Antarctic SSW Event |
title_fullStr |
Ionospheric 14.5 Day Periodic Oscillation during the 2019 Antarctic SSW Event |
title_full_unstemmed |
Ionospheric 14.5 Day Periodic Oscillation during the 2019 Antarctic SSW Event |
title_sort |
ionospheric 14.5 day periodic oscillation during the 2019 antarctic ssw event |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2023 |
url |
https://doi.org/10.3390/atmos14050796 |
op_coverage |
agris |
long_lat |
ENVELOPE(7.755,7.755,63.024,63.024) |
geographic |
Antarctic Eia |
geographic_facet |
Antarctic Eia |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
Atmosphere; Volume 14; Issue 5; Pages: 796 |
op_relation |
Upper Atmosphere https://dx.doi.org/10.3390/atmos14050796 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/atmos14050796 |
container_title |
Atmosphere |
container_volume |
14 |
container_issue |
5 |
container_start_page |
796 |
_version_ |
1774718058205544448 |