Observational study of the 4-day wave in the mesosphere preceding the sudden stratospheric warming events during 1995 and 2002
We have examined the Michelson Interferometer (MI) OH airglow measurements at the South Pole Station and the National Center for Environment Prediction (NCEP) temperatures to investigate the dynamical effects of sudden stratospheric warming (SSW) events on the Antarctic mesosphere and stratosphere....
Published in: | Geophysical Research Letters |
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Format: | Article in Journal/Newspaper |
Language: | English |
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American Geophysical Union
2005
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Online Access: | http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-011-174 https://doi.org/10.1029/2005GL023393 |
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ftncar:oai:drupal-site.org:articles_8929 2023-10-01T03:51:55+02:00 Observational study of the 4-day wave in the mesosphere preceding the sudden stratospheric warming events during 1995 and 2002 Azeem, S. (author) Talaat, E. (author) Sivjee, G. (author) Liu, Hanli (author) Roble, Raymond (author) 2005-08-06 application/pdf http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-011-174 https://doi.org/10.1029/2005GL023393 en eng American Geophysical Union Geophysical Research Letters http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-011-174 doi:10.1029/2005GL023393 ark:/85065/d7pc332d Copyright 2005 American Geophysical Union. Text article 2005 ftncar https://doi.org/10.1029/2005GL023393 2023-09-04T18:29:10Z We have examined the Michelson Interferometer (MI) OH airglow measurements at the South Pole Station and the National Center for Environment Prediction (NCEP) temperatures to investigate the dynamical effects of sudden stratospheric warming (SSW) events on the Antarctic mesosphere and stratosphere. Comparisons of stratospheric and mesospheric temperatures at the South Pole during the 1995 and 2002 observing seasons show evidence of mesospheric cooling preceding the SSW events. Spectral analyses of South Pole OH air glow brightness measurements from the 1995 and 2002 observing season and NCEP stratospheric temperatures show amplification of the 4-day wave planetary wave before the start of the mesospheric cooling trend, the latter preceding the onset of SSW event. A similar behavior of planetary wave is also seen in the stratosphere where the 4-day wave is seen to grow in amplitude just before the peak of the sudden increase in temperatures. Article in Journal/Newspaper Antarc* Antarctic South pole South pole OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) Antarctic South Pole The Antarctic Geophysical Research Letters 32 15 |
institution |
Open Polar |
collection |
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) |
op_collection_id |
ftncar |
language |
English |
description |
We have examined the Michelson Interferometer (MI) OH airglow measurements at the South Pole Station and the National Center for Environment Prediction (NCEP) temperatures to investigate the dynamical effects of sudden stratospheric warming (SSW) events on the Antarctic mesosphere and stratosphere. Comparisons of stratospheric and mesospheric temperatures at the South Pole during the 1995 and 2002 observing seasons show evidence of mesospheric cooling preceding the SSW events. Spectral analyses of South Pole OH air glow brightness measurements from the 1995 and 2002 observing season and NCEP stratospheric temperatures show amplification of the 4-day wave planetary wave before the start of the mesospheric cooling trend, the latter preceding the onset of SSW event. A similar behavior of planetary wave is also seen in the stratosphere where the 4-day wave is seen to grow in amplitude just before the peak of the sudden increase in temperatures. |
author2 |
Azeem, S. (author) Talaat, E. (author) Sivjee, G. (author) Liu, Hanli (author) Roble, Raymond (author) |
format |
Article in Journal/Newspaper |
title |
Observational study of the 4-day wave in the mesosphere preceding the sudden stratospheric warming events during 1995 and 2002 |
spellingShingle |
Observational study of the 4-day wave in the mesosphere preceding the sudden stratospheric warming events during 1995 and 2002 |
title_short |
Observational study of the 4-day wave in the mesosphere preceding the sudden stratospheric warming events during 1995 and 2002 |
title_full |
Observational study of the 4-day wave in the mesosphere preceding the sudden stratospheric warming events during 1995 and 2002 |
title_fullStr |
Observational study of the 4-day wave in the mesosphere preceding the sudden stratospheric warming events during 1995 and 2002 |
title_full_unstemmed |
Observational study of the 4-day wave in the mesosphere preceding the sudden stratospheric warming events during 1995 and 2002 |
title_sort |
observational study of the 4-day wave in the mesosphere preceding the sudden stratospheric warming events during 1995 and 2002 |
publisher |
American Geophysical Union |
publishDate |
2005 |
url |
http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-011-174 https://doi.org/10.1029/2005GL023393 |
geographic |
Antarctic South Pole The Antarctic |
geographic_facet |
Antarctic South Pole The Antarctic |
genre |
Antarc* Antarctic South pole South pole |
genre_facet |
Antarc* Antarctic South pole South pole |
op_relation |
Geophysical Research Letters http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-011-174 doi:10.1029/2005GL023393 ark:/85065/d7pc332d |
op_rights |
Copyright 2005 American Geophysical Union. |
op_doi |
https://doi.org/10.1029/2005GL023393 |
container_title |
Geophysical Research Letters |
container_volume |
32 |
container_issue |
15 |
_version_ |
1778517271895867392 |