Large mid-latitude stratospheric temperature variability caused by inertial instability: A potential source of bias for gravity wave climatologies
Stratospheric temperature perturbations (TP) that have previousl y been misinterpreted as du e to gravity waves are revisited . The perturbations ob-served by radio occultations during December 2015 had peak-to-peak amplitudes of 10 K extending from t h e Equator to mid-latitud es. The vertically st...
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Online Access: | https://elib.dlr.de/121977/ https://elib.dlr.de/121977/1/Rapp_et_al-2018-Geophysical_Research_Letters.pdf https://doi.org/10.1029/2018GL079142 |
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ftdlr:oai:elib.dlr.de:121977 2023-12-17T10:49:03+01:00 Large mid-latitude stratospheric temperature variability caused by inertial instability: A potential source of bias for gravity wave climatologies Rapp, Markus Dörnbrack, Andreas Preusse, Peter 2018-09-24 application/pdf https://elib.dlr.de/121977/ https://elib.dlr.de/121977/1/Rapp_et_al-2018-Geophysical_Research_Letters.pdf https://doi.org/10.1029/2018GL079142 de ger Wiley https://elib.dlr.de/121977/1/Rapp_et_al-2018-Geophysical_Research_Letters.pdf Rapp, Markus und Dörnbrack, Andreas und Preusse, Peter (2018) Large mid-latitude stratospheric temperature variability caused by inertial instability: A potential source of bias for gravity wave climatologies. Geophysical Research Letters, 45 (19), Seiten 10682-10690. Wiley. doi:10.1029/2018GL079142 <https://doi.org/10.1029/2018GL079142>. ISSN 0094-8276. cc_by_nc_nd Institut für Physik der Atmosphäre Verkehrsmeteorologie Zeitschriftenbeitrag PeerReviewed 2018 ftdlr https://doi.org/10.1029/2018GL079142 2023-11-20T00:24:15Z Stratospheric temperature perturbations (TP) that have previousl y been misinterpreted as du e to gravity waves are revisited . The perturbations ob-served by radio occultations during December 2015 had peak-to-peak amplitudes of 10 K extending from t h e Equator to mid-latitud es. The vertically stacked and horizontally flat structures had a vertical wavelength of 12 km.The signs of the TP were 18 0◦ phase shi ft ed between equat o r i al and midlatitudes at fi xed altit u d e levels. High-resolutio n operational analyses reveal that th ese shallow temperature structures were caused by inertial instabil- ity (II) due to the large meridional shear of the polar night jet (PNJ) at ist equatorward flank in combination with Rossby wave breaking. Large stratospheric TP owing to II do frequently occur in th e Northern Hemisphere (South- ern Hemisp h er e) from October to Apri l (April to October) in the 39 years of ERA-Interim data. During 10% of the days, TP exceed 5 K (peak-to -peak) . Article in Journal/Newspaper polar night German Aerospace Center: elib - DLR electronic library Geophysical Research Letters 45 19 10,682 10,690 |
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German Aerospace Center: elib - DLR electronic library |
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ftdlr |
language |
German |
topic |
Institut für Physik der Atmosphäre Verkehrsmeteorologie |
spellingShingle |
Institut für Physik der Atmosphäre Verkehrsmeteorologie Rapp, Markus Dörnbrack, Andreas Preusse, Peter Large mid-latitude stratospheric temperature variability caused by inertial instability: A potential source of bias for gravity wave climatologies |
topic_facet |
Institut für Physik der Atmosphäre Verkehrsmeteorologie |
description |
Stratospheric temperature perturbations (TP) that have previousl y been misinterpreted as du e to gravity waves are revisited . The perturbations ob-served by radio occultations during December 2015 had peak-to-peak amplitudes of 10 K extending from t h e Equator to mid-latitud es. The vertically stacked and horizontally flat structures had a vertical wavelength of 12 km.The signs of the TP were 18 0◦ phase shi ft ed between equat o r i al and midlatitudes at fi xed altit u d e levels. High-resolutio n operational analyses reveal that th ese shallow temperature structures were caused by inertial instabil- ity (II) due to the large meridional shear of the polar night jet (PNJ) at ist equatorward flank in combination with Rossby wave breaking. Large stratospheric TP owing to II do frequently occur in th e Northern Hemisphere (South- ern Hemisp h er e) from October to Apri l (April to October) in the 39 years of ERA-Interim data. During 10% of the days, TP exceed 5 K (peak-to -peak) . |
format |
Article in Journal/Newspaper |
author |
Rapp, Markus Dörnbrack, Andreas Preusse, Peter |
author_facet |
Rapp, Markus Dörnbrack, Andreas Preusse, Peter |
author_sort |
Rapp, Markus |
title |
Large mid-latitude stratospheric temperature variability caused by inertial instability: A potential source of bias for gravity wave climatologies |
title_short |
Large mid-latitude stratospheric temperature variability caused by inertial instability: A potential source of bias for gravity wave climatologies |
title_full |
Large mid-latitude stratospheric temperature variability caused by inertial instability: A potential source of bias for gravity wave climatologies |
title_fullStr |
Large mid-latitude stratospheric temperature variability caused by inertial instability: A potential source of bias for gravity wave climatologies |
title_full_unstemmed |
Large mid-latitude stratospheric temperature variability caused by inertial instability: A potential source of bias for gravity wave climatologies |
title_sort |
large mid-latitude stratospheric temperature variability caused by inertial instability: a potential source of bias for gravity wave climatologies |
publisher |
Wiley |
publishDate |
2018 |
url |
https://elib.dlr.de/121977/ https://elib.dlr.de/121977/1/Rapp_et_al-2018-Geophysical_Research_Letters.pdf https://doi.org/10.1029/2018GL079142 |
genre |
polar night |
genre_facet |
polar night |
op_relation |
https://elib.dlr.de/121977/1/Rapp_et_al-2018-Geophysical_Research_Letters.pdf Rapp, Markus und Dörnbrack, Andreas und Preusse, Peter (2018) Large mid-latitude stratospheric temperature variability caused by inertial instability: A potential source of bias for gravity wave climatologies. Geophysical Research Letters, 45 (19), Seiten 10682-10690. Wiley. doi:10.1029/2018GL079142 <https://doi.org/10.1029/2018GL079142>. ISSN 0094-8276. |
op_rights |
cc_by_nc_nd |
op_doi |
https://doi.org/10.1029/2018GL079142 |
container_title |
Geophysical Research Letters |
container_volume |
45 |
container_issue |
19 |
container_start_page |
10,682 |
op_container_end_page |
10,690 |
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1785573398810722304 |