The role of traveling planetary waves in ionosphere-atmosphere coupling during sudden stratospheric warmings
This study examines the role of traveling planetary waves in producing day-to-day variability of the ionosphere. Traveling planetary waves in the middle atmosphere, especially those having periods around 6, 10, 16 days, are generally regarded as the manifestation of atmospheric normal modes. A sudde...
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ftdlr:oai:elib.dlr.de:140501 2024-05-19T07:31:50+00:00 The role of traveling planetary waves in ionosphere-atmosphere coupling during sudden stratospheric warmings Yamazaki, Yosuke Miyoshi, Yasunobu Matthias, Vivien Stolle, Claudia Siddiqui, Tarique Adnan Kervalishvili, Guram Lastovicka, J. Kozubek, Michal Ward, William E. Themens, David Russel Kristoffersen, Samuel Alken, Patrick 2020-12 https://elib.dlr.de/140501/ unknown Yamazaki, Yosuke und Miyoshi, Yasunobu und Matthias, Vivien und Stolle, Claudia und Siddiqui, Tarique Adnan und Kervalishvili, Guram und Lastovicka, J. und Kozubek, Michal und Ward, William E. und Themens, David Russel und Kristoffersen, Samuel und Alken, Patrick (2020) The role of traveling planetary waves in ionosphere-atmosphere coupling during sudden stratospheric warmings. AGU Fall Meeting, 2020-12-01 - 2020-12-17, Online / San Francisco. (nicht veröffentlicht) Solar-Terrestrische Kopplungsprozesse Konferenzbeitrag NonPeerReviewed 2020 ftdlr 2024-04-25T00:55:00Z This study examines the role of traveling planetary waves in producing day-to-day variability of the ionosphere. Traveling planetary waves in the middle atmosphere, especially those having periods around 6, 10, 16 days, are generally regarded as the manifestation of atmospheric normal modes. A sudden stratospheric warming (SSW) is sometimes accompanied by enhanced traveling planetary waves, which can be understood in terms of the dependence of normal modes on the zonal mean state of the atmosphere. The September 2019 Antarctic SSW is one example. Following the SSW, a large quasi-6-day wave (Q6DW) is observed in the mesosphere and lower thermosphere. During the same time, Swarm satellites in near-polar orbits observe westward-propagating 6-day perturbations with zonal wavenumber 1 in ionospheric parameters such as the electron density and equatorial electrojet intensity. The whole atmosphere model GAIA is able to reproduce these ionospheric variations under constant geomagnetic and solar activity conditions. Using GAIA, it is demonstrated that tides modulated by the Q6DW are responsible for the 6-day ionospheric variations during the September 2019 SSW. Planetary wave modulations of tides and their ionospheric effects are also discussed for SSWs in other seasons. Conference Object Antarc* Antarctic German Aerospace Center: elib - DLR electronic library |
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Open Polar |
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German Aerospace Center: elib - DLR electronic library |
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unknown |
topic |
Solar-Terrestrische Kopplungsprozesse |
spellingShingle |
Solar-Terrestrische Kopplungsprozesse Yamazaki, Yosuke Miyoshi, Yasunobu Matthias, Vivien Stolle, Claudia Siddiqui, Tarique Adnan Kervalishvili, Guram Lastovicka, J. Kozubek, Michal Ward, William E. Themens, David Russel Kristoffersen, Samuel Alken, Patrick The role of traveling planetary waves in ionosphere-atmosphere coupling during sudden stratospheric warmings |
topic_facet |
Solar-Terrestrische Kopplungsprozesse |
description |
This study examines the role of traveling planetary waves in producing day-to-day variability of the ionosphere. Traveling planetary waves in the middle atmosphere, especially those having periods around 6, 10, 16 days, are generally regarded as the manifestation of atmospheric normal modes. A sudden stratospheric warming (SSW) is sometimes accompanied by enhanced traveling planetary waves, which can be understood in terms of the dependence of normal modes on the zonal mean state of the atmosphere. The September 2019 Antarctic SSW is one example. Following the SSW, a large quasi-6-day wave (Q6DW) is observed in the mesosphere and lower thermosphere. During the same time, Swarm satellites in near-polar orbits observe westward-propagating 6-day perturbations with zonal wavenumber 1 in ionospheric parameters such as the electron density and equatorial electrojet intensity. The whole atmosphere model GAIA is able to reproduce these ionospheric variations under constant geomagnetic and solar activity conditions. Using GAIA, it is demonstrated that tides modulated by the Q6DW are responsible for the 6-day ionospheric variations during the September 2019 SSW. Planetary wave modulations of tides and their ionospheric effects are also discussed for SSWs in other seasons. |
format |
Conference Object |
author |
Yamazaki, Yosuke Miyoshi, Yasunobu Matthias, Vivien Stolle, Claudia Siddiqui, Tarique Adnan Kervalishvili, Guram Lastovicka, J. Kozubek, Michal Ward, William E. Themens, David Russel Kristoffersen, Samuel Alken, Patrick |
author_facet |
Yamazaki, Yosuke Miyoshi, Yasunobu Matthias, Vivien Stolle, Claudia Siddiqui, Tarique Adnan Kervalishvili, Guram Lastovicka, J. Kozubek, Michal Ward, William E. Themens, David Russel Kristoffersen, Samuel Alken, Patrick |
author_sort |
Yamazaki, Yosuke |
title |
The role of traveling planetary waves in ionosphere-atmosphere coupling during sudden stratospheric warmings |
title_short |
The role of traveling planetary waves in ionosphere-atmosphere coupling during sudden stratospheric warmings |
title_full |
The role of traveling planetary waves in ionosphere-atmosphere coupling during sudden stratospheric warmings |
title_fullStr |
The role of traveling planetary waves in ionosphere-atmosphere coupling during sudden stratospheric warmings |
title_full_unstemmed |
The role of traveling planetary waves in ionosphere-atmosphere coupling during sudden stratospheric warmings |
title_sort |
role of traveling planetary waves in ionosphere-atmosphere coupling during sudden stratospheric warmings |
publishDate |
2020 |
url |
https://elib.dlr.de/140501/ |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_relation |
Yamazaki, Yosuke und Miyoshi, Yasunobu und Matthias, Vivien und Stolle, Claudia und Siddiqui, Tarique Adnan und Kervalishvili, Guram und Lastovicka, J. und Kozubek, Michal und Ward, William E. und Themens, David Russel und Kristoffersen, Samuel und Alken, Patrick (2020) The role of traveling planetary waves in ionosphere-atmosphere coupling during sudden stratospheric warmings. AGU Fall Meeting, 2020-12-01 - 2020-12-17, Online / San Francisco. (nicht veröffentlicht) |
_version_ |
1799469720586420224 |