3-D tomographic observations of Rossby wave breaking over the North Atlantic during the WISE aircraft campaign in 2017
This paper presents measurements of ozone, wa-ter vapour and nitric acid (HNO3) in the upper tropo-sphere/lower stratosphere (UTLS) over North Atlantic andEurope. The measurements were acquired with the Gim-balled Limb Observer for Radiance Imaging of the At-mosphere (GLORIA) during the Wave Driven...
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ftdlr:oai:elib.dlr.de:146023 2024-01-14T10:09:00+01:00 3-D tomographic observations of Rossby wave breaking over the North Atlantic during the WISE aircraft campaign in 2017 Krasauskas, Lukas Ungermann, Jörn Preusse, Peter Friedl-Vallon, Felix Zahn, Andeas Ziereis, Helmut Rolf, Christian Plöger, Felix Konopka, Paul Vogel, Bärbel Riese, Martin 2021-07-07 application/pdf https://elib.dlr.de/146023/ https://elib.dlr.de/146023/1/acp-21-10249-2021.pdf https://acp.copernicus.org/articles/21/10249/2021/ en eng Copernicus Publications https://elib.dlr.de/146023/1/acp-21-10249-2021.pdf Krasauskas, Lukas und Ungermann, Jörn und Preusse, Peter und Friedl-Vallon, Felix und Zahn, Andeas und Ziereis, Helmut und Rolf, Christian und Plöger, Felix und Konopka, Paul und Vogel, Bärbel und Riese, Martin (2021) 3-D tomographic observations of Rossby wave breaking over the North Atlantic during the WISE aircraft campaign in 2017. Atmospheric Chemistry and Physics (ACP), 21 (13), Seiten 10249-10272. Copernicus Publications. doi:10.5194/acp-21-10249-2021 <https://doi.org/10.5194/acp-21-10249-2021>. ISSN 1680-7316. cc_by Atmosphärische Spurenstoffe Zeitschriftenbeitrag PeerReviewed 2021 ftdlr https://doi.org/10.5194/acp-21-10249-2021 2023-12-18T00:24:00Z This paper presents measurements of ozone, wa-ter vapour and nitric acid (HNO3) in the upper tropo-sphere/lower stratosphere (UTLS) over North Atlantic andEurope. The measurements were acquired with the Gim-balled Limb Observer for Radiance Imaging of the At-mosphere (GLORIA) during the Wave Driven IsentropicExchange (WISE) campaign in October 2017. GLORIAis an airborne limb imager capable of acquiring both 2-D data sets (curtains along the flight path) and, whenthe carrier aircraft is flying around the observed air mass,spatially highly resolved 3-D tomographic data. Here, wepresent a case study of a Rossby wave (RW) breakingevent observed during two subsequent flights 2 d apart. RWbreaking is known to steepen tracer gradients and facili-tate stratosphere–troposphere exchange (STE). Our measure-ments reveal complex spatial structures in stratospheric trac-ers (ozone and nitric acid) with multiple vertically stacked fil-aments. Backward-trajectory analysis is used to demonstratethat these features are related to several previous Rossbywave breaking events and that the small-scale structure ofthe UTLS in the Rossby wave breaking region, which is oth-erwise very hard to observe, can be understood as stirringand mixing of air masses of tropospheric and stratosphericorigin. It is also shown that a strong nitric acid enhancementobserved just above the tropopause is likely a result of NOxproduction by lightning activity. The measurements showedsignatures of enhanced mixing between stratospheric and tro-pospheric air near the polar jet with some transport of watervapour into the stratosphere. Some of the air masses seen in3-D data were encountered again 2 d later, stretched to verythin filament (horizontal thickness down to 30 km at some al-titudes) rich in stratospheric tracers. This repeated measure-ment allowed us to directly observe and analyse the progressof mixing processes in a thin filament over 2 d. Our resultsprovide direct insight into small-scale dynamics of the UTLSin the Rossby wave breaking region, which ... Article in Journal/Newspaper North Atlantic German Aerospace Center: elib - DLR electronic library Atmospheric Chemistry and Physics 21 13 10249 10272 |
institution |
Open Polar |
collection |
German Aerospace Center: elib - DLR electronic library |
op_collection_id |
ftdlr |
language |
English |
topic |
Atmosphärische Spurenstoffe |
spellingShingle |
Atmosphärische Spurenstoffe Krasauskas, Lukas Ungermann, Jörn Preusse, Peter Friedl-Vallon, Felix Zahn, Andeas Ziereis, Helmut Rolf, Christian Plöger, Felix Konopka, Paul Vogel, Bärbel Riese, Martin 3-D tomographic observations of Rossby wave breaking over the North Atlantic during the WISE aircraft campaign in 2017 |
topic_facet |
Atmosphärische Spurenstoffe |
description |
This paper presents measurements of ozone, wa-ter vapour and nitric acid (HNO3) in the upper tropo-sphere/lower stratosphere (UTLS) over North Atlantic andEurope. The measurements were acquired with the Gim-balled Limb Observer for Radiance Imaging of the At-mosphere (GLORIA) during the Wave Driven IsentropicExchange (WISE) campaign in October 2017. GLORIAis an airborne limb imager capable of acquiring both 2-D data sets (curtains along the flight path) and, whenthe carrier aircraft is flying around the observed air mass,spatially highly resolved 3-D tomographic data. Here, wepresent a case study of a Rossby wave (RW) breakingevent observed during two subsequent flights 2 d apart. RWbreaking is known to steepen tracer gradients and facili-tate stratosphere–troposphere exchange (STE). Our measure-ments reveal complex spatial structures in stratospheric trac-ers (ozone and nitric acid) with multiple vertically stacked fil-aments. Backward-trajectory analysis is used to demonstratethat these features are related to several previous Rossbywave breaking events and that the small-scale structure ofthe UTLS in the Rossby wave breaking region, which is oth-erwise very hard to observe, can be understood as stirringand mixing of air masses of tropospheric and stratosphericorigin. It is also shown that a strong nitric acid enhancementobserved just above the tropopause is likely a result of NOxproduction by lightning activity. The measurements showedsignatures of enhanced mixing between stratospheric and tro-pospheric air near the polar jet with some transport of watervapour into the stratosphere. Some of the air masses seen in3-D data were encountered again 2 d later, stretched to verythin filament (horizontal thickness down to 30 km at some al-titudes) rich in stratospheric tracers. This repeated measure-ment allowed us to directly observe and analyse the progressof mixing processes in a thin filament over 2 d. Our resultsprovide direct insight into small-scale dynamics of the UTLSin the Rossby wave breaking region, which ... |
format |
Article in Journal/Newspaper |
author |
Krasauskas, Lukas Ungermann, Jörn Preusse, Peter Friedl-Vallon, Felix Zahn, Andeas Ziereis, Helmut Rolf, Christian Plöger, Felix Konopka, Paul Vogel, Bärbel Riese, Martin |
author_facet |
Krasauskas, Lukas Ungermann, Jörn Preusse, Peter Friedl-Vallon, Felix Zahn, Andeas Ziereis, Helmut Rolf, Christian Plöger, Felix Konopka, Paul Vogel, Bärbel Riese, Martin |
author_sort |
Krasauskas, Lukas |
title |
3-D tomographic observations of Rossby wave breaking over the North Atlantic during the WISE aircraft campaign in 2017 |
title_short |
3-D tomographic observations of Rossby wave breaking over the North Atlantic during the WISE aircraft campaign in 2017 |
title_full |
3-D tomographic observations of Rossby wave breaking over the North Atlantic during the WISE aircraft campaign in 2017 |
title_fullStr |
3-D tomographic observations of Rossby wave breaking over the North Atlantic during the WISE aircraft campaign in 2017 |
title_full_unstemmed |
3-D tomographic observations of Rossby wave breaking over the North Atlantic during the WISE aircraft campaign in 2017 |
title_sort |
3-d tomographic observations of rossby wave breaking over the north atlantic during the wise aircraft campaign in 2017 |
publisher |
Copernicus Publications |
publishDate |
2021 |
url |
https://elib.dlr.de/146023/ https://elib.dlr.de/146023/1/acp-21-10249-2021.pdf https://acp.copernicus.org/articles/21/10249/2021/ |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
https://elib.dlr.de/146023/1/acp-21-10249-2021.pdf Krasauskas, Lukas und Ungermann, Jörn und Preusse, Peter und Friedl-Vallon, Felix und Zahn, Andeas und Ziereis, Helmut und Rolf, Christian und Plöger, Felix und Konopka, Paul und Vogel, Bärbel und Riese, Martin (2021) 3-D tomographic observations of Rossby wave breaking over the North Atlantic during the WISE aircraft campaign in 2017. Atmospheric Chemistry and Physics (ACP), 21 (13), Seiten 10249-10272. Copernicus Publications. doi:10.5194/acp-21-10249-2021 <https://doi.org/10.5194/acp-21-10249-2021>. ISSN 1680-7316. |
op_rights |
cc_by |
op_doi |
https://doi.org/10.5194/acp-21-10249-2021 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
21 |
container_issue |
13 |
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10249 |
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10272 |
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1788063439518695424 |