Lidar Soundings of Gravity Waves in the Middle Atmosphere above South Pole
We report on the first soundings of the Temperature Lidar for the Middle Atmosphere (TELMA) which was deployed to the Amundsen–Scott South Pole Station in February 2023. TELMA measures temperature profiles up to about 90 km altitude and thus bridges the vertical gap between past stratospheric lidar...
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ftdlr:oai:elib.dlr.de:204736 2024-09-15T17:39:13+00:00 Lidar Soundings of Gravity Waves in the Middle Atmosphere above South Pole Kaifler, Natalie Kaifler, Bernd 2024-06-05 application/pdf https://elib.dlr.de/204736/ https://elib.dlr.de/204736/1/Kaifler_TELMA_Southpole_v1.pdf en eng https://elib.dlr.de/204736/1/Kaifler_TELMA_Southpole_v1.pdf Kaifler, Natalie und Kaifler, Bernd (2024) Lidar Soundings of Gravity Waves in the Middle Atmosphere above South Pole. 9th IAGA/ICMA/SCOSTEP Workshop on Vertical Coupling in the Atmosphere-Ionosphere System and the 6th ANtarctic Gravity Wave Instrument Network Meeting, 2024-06-03 - 2024-06-07, Fredericton, New Brunswick, Canada. Lidar Konferenzbeitrag NonPeerReviewed 2024 ftdlr 2024-06-26T23:48:05Z We report on the first soundings of the Temperature Lidar for the Middle Atmosphere (TELMA) which was deployed to the Amundsen–Scott South Pole Station in February 2023. TELMA measures temperature profiles up to about 90 km altitude and thus bridges the vertical gap between past stratospheric lidar observations and current airglow observations of gravity waves. During the first winter season, TELMA acquired a large data set totaling 614 h. We show examples of gravity waves identified in lidar data in the upper mesosphere reaching amplitudes of ~10 K and discuss potential influences from both the polar vortex dynamics and catabatic winds across the Transantarctic Mountains. Our data suggest that gravity waves at South Pole have typically lower potential energy densities and show different characteristics compared to gravity waves observed by TELMA’s twin instrument CORAL located near the edge of the polar vortex at the tip of the Southern Andes. The different behavior may be attributed to different wave generation mechanism at the two locations as well as differences in the propagation conditions. Conference Object Amundsen-Scott South pole 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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ftdlr |
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English |
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Lidar |
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Lidar Kaifler, Natalie Kaifler, Bernd Lidar Soundings of Gravity Waves in the Middle Atmosphere above South Pole |
topic_facet |
Lidar |
description |
We report on the first soundings of the Temperature Lidar for the Middle Atmosphere (TELMA) which was deployed to the Amundsen–Scott South Pole Station in February 2023. TELMA measures temperature profiles up to about 90 km altitude and thus bridges the vertical gap between past stratospheric lidar observations and current airglow observations of gravity waves. During the first winter season, TELMA acquired a large data set totaling 614 h. We show examples of gravity waves identified in lidar data in the upper mesosphere reaching amplitudes of ~10 K and discuss potential influences from both the polar vortex dynamics and catabatic winds across the Transantarctic Mountains. Our data suggest that gravity waves at South Pole have typically lower potential energy densities and show different characteristics compared to gravity waves observed by TELMA’s twin instrument CORAL located near the edge of the polar vortex at the tip of the Southern Andes. The different behavior may be attributed to different wave generation mechanism at the two locations as well as differences in the propagation conditions. |
format |
Conference Object |
author |
Kaifler, Natalie Kaifler, Bernd |
author_facet |
Kaifler, Natalie Kaifler, Bernd |
author_sort |
Kaifler, Natalie |
title |
Lidar Soundings of Gravity Waves in the Middle Atmosphere above South Pole |
title_short |
Lidar Soundings of Gravity Waves in the Middle Atmosphere above South Pole |
title_full |
Lidar Soundings of Gravity Waves in the Middle Atmosphere above South Pole |
title_fullStr |
Lidar Soundings of Gravity Waves in the Middle Atmosphere above South Pole |
title_full_unstemmed |
Lidar Soundings of Gravity Waves in the Middle Atmosphere above South Pole |
title_sort |
lidar soundings of gravity waves in the middle atmosphere above south pole |
publishDate |
2024 |
url |
https://elib.dlr.de/204736/ https://elib.dlr.de/204736/1/Kaifler_TELMA_Southpole_v1.pdf |
genre |
Amundsen-Scott South pole |
genre_facet |
Amundsen-Scott South pole |
op_relation |
https://elib.dlr.de/204736/1/Kaifler_TELMA_Southpole_v1.pdf Kaifler, Natalie und Kaifler, Bernd (2024) Lidar Soundings of Gravity Waves in the Middle Atmosphere above South Pole. 9th IAGA/ICMA/SCOSTEP Workshop on Vertical Coupling in the Atmosphere-Ionosphere System and the 6th ANtarctic Gravity Wave Instrument Network Meeting, 2024-06-03 - 2024-06-07, Fredericton, New Brunswick, Canada. |
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1810478503687094272 |