Gravity waves excited during a minor sudden stratospheric warming
An exceptionally deep upper-air sounding launched from Kiruna airport (67.82∘ N, 20.33∘ E) on 30 January 2016 stimulated the current investigation of internal gravity waves excited during a minor sudden stratospheric warming (SSW) in the Arctic winter 2015/16. The analysis of the radiosonde profile...
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ftleibnizopen:oai:oai.leibnizopen.de:6xN3DYsBBwLIz6xGAPKf 2023-11-05T03:39:01+01:00 Gravity waves excited during a minor sudden stratospheric warming Dörnbrack, Andreas Gisinger, Sonja Kaifler, Natalie Portele, Tanja Christina Bramberger, Martina Rapp, Markus Gerding, Michael Söder, Jens Žagar, Nedjeljka Jelić, Damjan 2018-9-7 application/pdf https://oa.tib.eu/renate/handle/123456789/10683 https://doi.org/10.34657/9719 eng eng Katlenburg-Lindau : EGU CC BY 4.0 Unported https://creativecommons.org/licenses/by/4.0/ Atmospheric chemistry and physics 18 (2018), Nr. 17 gravity wave kinetic energy potential energy radiosonde sudden stratospheric warming troposphere wave generation wave propagation winter Arctic 550 article Text 2018 ftleibnizopen https://doi.org/10.34657/9719 2023-10-08T23:34:33Z An exceptionally deep upper-air sounding launched from Kiruna airport (67.82∘ N, 20.33∘ E) on 30 January 2016 stimulated the current investigation of internal gravity waves excited during a minor sudden stratospheric warming (SSW) in the Arctic winter 2015/16. The analysis of the radiosonde profile revealed large kinetic and potential energies in the upper stratosphere without any simultaneous enhancement of upper tropospheric and lower stratospheric values. Upward-propagating inertia-gravity waves in the upper stratosphere and downward-propagating modes in the lower stratosphere indicated a region of gravity wave generation in the stratosphere. Two-dimensional wavelet analysis was applied to vertical time series of temperature fluctuations in order to determine the vertical propagation direction of the stratospheric gravity waves in 1-hourly high-resolution meteorological analyses and short-term forecasts. The separation of upward- and downward-propagating waves provided further evidence for a stratospheric source of gravity waves. The scale-dependent decomposition of the flow into a balanced component and inertia-gravity waves showed that coherent wave packets preferentially occurred at the inner edge of the Arctic polar vortex where a sub-vortex formed during the minor SSW. publishedVersion Article in Journal/Newspaper Arctic Kiruna LeibnizOpen (The Leibniz Association) |
institution |
Open Polar |
collection |
LeibnizOpen (The Leibniz Association) |
op_collection_id |
ftleibnizopen |
language |
English |
topic |
gravity wave kinetic energy potential energy radiosonde sudden stratospheric warming troposphere wave generation wave propagation winter Arctic 550 |
spellingShingle |
gravity wave kinetic energy potential energy radiosonde sudden stratospheric warming troposphere wave generation wave propagation winter Arctic 550 Dörnbrack, Andreas Gisinger, Sonja Kaifler, Natalie Portele, Tanja Christina Bramberger, Martina Rapp, Markus Gerding, Michael Söder, Jens Žagar, Nedjeljka Jelić, Damjan Gravity waves excited during a minor sudden stratospheric warming |
topic_facet |
gravity wave kinetic energy potential energy radiosonde sudden stratospheric warming troposphere wave generation wave propagation winter Arctic 550 |
description |
An exceptionally deep upper-air sounding launched from Kiruna airport (67.82∘ N, 20.33∘ E) on 30 January 2016 stimulated the current investigation of internal gravity waves excited during a minor sudden stratospheric warming (SSW) in the Arctic winter 2015/16. The analysis of the radiosonde profile revealed large kinetic and potential energies in the upper stratosphere without any simultaneous enhancement of upper tropospheric and lower stratospheric values. Upward-propagating inertia-gravity waves in the upper stratosphere and downward-propagating modes in the lower stratosphere indicated a region of gravity wave generation in the stratosphere. Two-dimensional wavelet analysis was applied to vertical time series of temperature fluctuations in order to determine the vertical propagation direction of the stratospheric gravity waves in 1-hourly high-resolution meteorological analyses and short-term forecasts. The separation of upward- and downward-propagating waves provided further evidence for a stratospheric source of gravity waves. The scale-dependent decomposition of the flow into a balanced component and inertia-gravity waves showed that coherent wave packets preferentially occurred at the inner edge of the Arctic polar vortex where a sub-vortex formed during the minor SSW. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Dörnbrack, Andreas Gisinger, Sonja Kaifler, Natalie Portele, Tanja Christina Bramberger, Martina Rapp, Markus Gerding, Michael Söder, Jens Žagar, Nedjeljka Jelić, Damjan |
author_facet |
Dörnbrack, Andreas Gisinger, Sonja Kaifler, Natalie Portele, Tanja Christina Bramberger, Martina Rapp, Markus Gerding, Michael Söder, Jens Žagar, Nedjeljka Jelić, Damjan |
author_sort |
Dörnbrack, Andreas |
title |
Gravity waves excited during a minor sudden stratospheric warming |
title_short |
Gravity waves excited during a minor sudden stratospheric warming |
title_full |
Gravity waves excited during a minor sudden stratospheric warming |
title_fullStr |
Gravity waves excited during a minor sudden stratospheric warming |
title_full_unstemmed |
Gravity waves excited during a minor sudden stratospheric warming |
title_sort |
gravity waves excited during a minor sudden stratospheric warming |
publisher |
Katlenburg-Lindau : EGU |
publishDate |
2018 |
url |
https://oa.tib.eu/renate/handle/123456789/10683 https://doi.org/10.34657/9719 |
genre |
Arctic Kiruna |
genre_facet |
Arctic Kiruna |
op_source |
Atmospheric chemistry and physics 18 (2018), Nr. 17 |
op_rights |
CC BY 4.0 Unported https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.34657/9719 |
_version_ |
1781694804036419584 |