Planetary waves in the upper stratosphere and lower mesosphere during 2009 Arctic major stratospheric warming
The AURA-MLS daily mean temperatures and zonal wind from NASA-MERRA reanalysis for latitudes between 60° N and 80° N are used to investigate the planetary wave (PW) characteristics in the stratosphere and lower mesosphere during sudden stratospheric warming (SSW) (November 2008 to March 2009). Here,...
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00024111 2023-05-15T15:02:53+02:00 Planetary waves in the upper stratosphere and lower mesosphere during 2009 Arctic major stratospheric warming Kishore, P. Velicogna, I. Venkat Ratnam, M. Jiang, J. H. Madhavi, G. N. 2012-10 electronic https://doi.org/10.5194/angeo-30-1529-2012 https://noa.gwlb.de/receive/cop_mods_00024111 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00024066/angeo-30-1529-2012.pdf https://angeo.copernicus.org/articles/30/1529/2012/angeo-30-1529-2012.pdf eng eng Copernicus Publications Annales Geophysicae -- http://www.bibliothek.uni-regensburg.de/ezeit/?1458425 -- https://www.ann-geophys.net/ -- https://www.ann-geophys.net/volumes.html -- http://link.springer.com/journal/585 -- 1432-0576 https://doi.org/10.5194/angeo-30-1529-2012 https://noa.gwlb.de/receive/cop_mods_00024111 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00024066/angeo-30-1529-2012.pdf https://angeo.copernicus.org/articles/30/1529/2012/angeo-30-1529-2012.pdf uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2012 ftnonlinearchiv https://doi.org/10.5194/angeo-30-1529-2012 2022-02-08T22:50:18Z The AURA-MLS daily mean temperatures and zonal wind from NASA-MERRA reanalysis for latitudes between 60° N and 80° N are used to investigate the planetary wave (PW) characteristics in the stratosphere and lower mesosphere during sudden stratospheric warming (SSW) (November 2008 to March 2009). Here, we used a novel method called empirical mode decomposition (EMD) to extract the PWs from the temperature data. The EMD is an interesting approach to decompose signals into locally periodic components, the intrinsic mode functions (IMFs), and will easily identify the embedded structures, even those with small amplitudes. The spectral analysis reveals prevailing planetary wave periods of ~6-day, ~8-day, ~15-day, and ~21–23-day in IMFs 1, 2, 3, and 4, respectively. Clear upward propagation of these waves (20–30 days) is observed, suggesting that sources for these oscillations are in the troposphere. Article in Journal/Newspaper Arctic Niedersächsisches Online-Archiv NOA Arctic Merra ENVELOPE(12.615,12.615,65.816,65.816) Annales Geophysicae 30 10 1529 1538 |
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Open Polar |
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Niedersächsisches Online-Archiv NOA |
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ftnonlinearchiv |
language |
English |
topic |
article Verlagsveröffentlichung |
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article Verlagsveröffentlichung Kishore, P. Velicogna, I. Venkat Ratnam, M. Jiang, J. H. Madhavi, G. N. Planetary waves in the upper stratosphere and lower mesosphere during 2009 Arctic major stratospheric warming |
topic_facet |
article Verlagsveröffentlichung |
description |
The AURA-MLS daily mean temperatures and zonal wind from NASA-MERRA reanalysis for latitudes between 60° N and 80° N are used to investigate the planetary wave (PW) characteristics in the stratosphere and lower mesosphere during sudden stratospheric warming (SSW) (November 2008 to March 2009). Here, we used a novel method called empirical mode decomposition (EMD) to extract the PWs from the temperature data. The EMD is an interesting approach to decompose signals into locally periodic components, the intrinsic mode functions (IMFs), and will easily identify the embedded structures, even those with small amplitudes. The spectral analysis reveals prevailing planetary wave periods of ~6-day, ~8-day, ~15-day, and ~21–23-day in IMFs 1, 2, 3, and 4, respectively. Clear upward propagation of these waves (20–30 days) is observed, suggesting that sources for these oscillations are in the troposphere. |
format |
Article in Journal/Newspaper |
author |
Kishore, P. Velicogna, I. Venkat Ratnam, M. Jiang, J. H. Madhavi, G. N. |
author_facet |
Kishore, P. Velicogna, I. Venkat Ratnam, M. Jiang, J. H. Madhavi, G. N. |
author_sort |
Kishore, P. |
title |
Planetary waves in the upper stratosphere and lower mesosphere during 2009 Arctic major stratospheric warming |
title_short |
Planetary waves in the upper stratosphere and lower mesosphere during 2009 Arctic major stratospheric warming |
title_full |
Planetary waves in the upper stratosphere and lower mesosphere during 2009 Arctic major stratospheric warming |
title_fullStr |
Planetary waves in the upper stratosphere and lower mesosphere during 2009 Arctic major stratospheric warming |
title_full_unstemmed |
Planetary waves in the upper stratosphere and lower mesosphere during 2009 Arctic major stratospheric warming |
title_sort |
planetary waves in the upper stratosphere and lower mesosphere during 2009 arctic major stratospheric warming |
publisher |
Copernicus Publications |
publishDate |
2012 |
url |
https://doi.org/10.5194/angeo-30-1529-2012 https://noa.gwlb.de/receive/cop_mods_00024111 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00024066/angeo-30-1529-2012.pdf https://angeo.copernicus.org/articles/30/1529/2012/angeo-30-1529-2012.pdf |
long_lat |
ENVELOPE(12.615,12.615,65.816,65.816) |
geographic |
Arctic Merra |
geographic_facet |
Arctic Merra |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
Annales Geophysicae -- http://www.bibliothek.uni-regensburg.de/ezeit/?1458425 -- https://www.ann-geophys.net/ -- https://www.ann-geophys.net/volumes.html -- http://link.springer.com/journal/585 -- 1432-0576 https://doi.org/10.5194/angeo-30-1529-2012 https://noa.gwlb.de/receive/cop_mods_00024111 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00024066/angeo-30-1529-2012.pdf https://angeo.copernicus.org/articles/30/1529/2012/angeo-30-1529-2012.pdf |
op_rights |
uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/angeo-30-1529-2012 |
container_title |
Annales Geophysicae |
container_volume |
30 |
container_issue |
10 |
container_start_page |
1529 |
op_container_end_page |
1538 |
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1766334792902639616 |