MID-WINTER WARMINGS IN THE SOUTHERN HEMISPHERE STRATOSPHERE IN 1988
An analysis was done of intense midwinter warmings which took place in the southern hemisphere stratosphere during August-September 1988. By using the southern hemispheric data set up to the 1 mb level provided by Japan Meteorological Agency, it is found that the 30 mb temperature increase over east...
Main Authors: | , , , , , , , |
---|---|
Format: | Report |
Language: | English |
Published: |
ABSTRACT
1991
|
Subjects: | |
Online Access: | https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=3650 http://id.nii.ac.jp/1291/00003650/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=3650&item_no=1&attribute_id=18&file_no=1 |
id |
ftnipr:oai:nipr.repo.nii.ac.jp:00003650 |
---|---|
record_format |
openpolar |
spelling |
ftnipr:oai:nipr.repo.nii.ac.jp:00003650 2023-05-15T13:49:01+02:00 MID-WINTER WARMINGS IN THE SOUTHERN HEMISPHERE STRATOSPHERE IN 1988 シオタニ マサト ヒロタ イサム クロイ ケイコ ヒラキ トオル Masato SHIOTANI Isamu HIROTA Keiko KUROI Tooru HIRAKI 1991-05 https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=3650 http://id.nii.ac.jp/1291/00003650/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=3650&item_no=1&attribute_id=18&file_no=1 en eng ABSTRACT Department of Geophysics, Faculty of Science, Kyoto University Japan Meteorological Agency National Institute of Polar Research https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=3650 http://id.nii.ac.jp/1291/00003650/ AA10756213 Proceedings of the NIPR Symposium on Polar Meteorology and Glaciology, 4, 119(1991-05) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=3650&item_no=1&attribute_id=18&file_no=1 Departmental Bulletin Paper P(論文) 1991 ftnipr 2022-12-10T19:45:46Z An analysis was done of intense midwinter warmings which took place in the southern hemisphere stratosphere during August-September 1988. By using the southern hemispheric data set up to the 1 mb level provided by Japan Meteorological Agency, it is found that the 30 mb temperature increase over eastern Antarctica, about 60 K for 10 days from August 22 to September 1,is associated with the amplification of a quasi-stationary planetary wave of zonal wavenumber 1. The enhancement of wave 1 appears quasi-periodically with a times scale of about 2 weeks during the mid-winter of 1988. Clear evidence is presented to show that the quasi-periodic amplification of wave 1 is due to the wave-wave interaction between the quasi-stationary forced wave of wavenumber 1 and the eastward traveling wave of wavenumber 2. It is emphasized, therefore, that the mechanism of warming in this case is quite different from the transient vertical propagation of a planetary wave forced from below as observed in the northern hemisphere winter. Report Antarc* Antarctica Polar meteorology and glaciology Proceedings of the NIPR Symposium on Polar Meteorology and Glaciology National Institute of Polar Research Repository, Japan Midwinter ENVELOPE(139.931,139.931,-66.690,-66.690) |
institution |
Open Polar |
collection |
National Institute of Polar Research Repository, Japan |
op_collection_id |
ftnipr |
language |
English |
description |
An analysis was done of intense midwinter warmings which took place in the southern hemisphere stratosphere during August-September 1988. By using the southern hemispheric data set up to the 1 mb level provided by Japan Meteorological Agency, it is found that the 30 mb temperature increase over eastern Antarctica, about 60 K for 10 days from August 22 to September 1,is associated with the amplification of a quasi-stationary planetary wave of zonal wavenumber 1. The enhancement of wave 1 appears quasi-periodically with a times scale of about 2 weeks during the mid-winter of 1988. Clear evidence is presented to show that the quasi-periodic amplification of wave 1 is due to the wave-wave interaction between the quasi-stationary forced wave of wavenumber 1 and the eastward traveling wave of wavenumber 2. It is emphasized, therefore, that the mechanism of warming in this case is quite different from the transient vertical propagation of a planetary wave forced from below as observed in the northern hemisphere winter. |
format |
Report |
author |
シオタニ マサト ヒロタ イサム クロイ ケイコ ヒラキ トオル Masato SHIOTANI Isamu HIROTA Keiko KUROI Tooru HIRAKI |
spellingShingle |
シオタニ マサト ヒロタ イサム クロイ ケイコ ヒラキ トオル Masato SHIOTANI Isamu HIROTA Keiko KUROI Tooru HIRAKI MID-WINTER WARMINGS IN THE SOUTHERN HEMISPHERE STRATOSPHERE IN 1988 |
author_facet |
シオタニ マサト ヒロタ イサム クロイ ケイコ ヒラキ トオル Masato SHIOTANI Isamu HIROTA Keiko KUROI Tooru HIRAKI |
author_sort |
シオタニ マサト |
title |
MID-WINTER WARMINGS IN THE SOUTHERN HEMISPHERE STRATOSPHERE IN 1988 |
title_short |
MID-WINTER WARMINGS IN THE SOUTHERN HEMISPHERE STRATOSPHERE IN 1988 |
title_full |
MID-WINTER WARMINGS IN THE SOUTHERN HEMISPHERE STRATOSPHERE IN 1988 |
title_fullStr |
MID-WINTER WARMINGS IN THE SOUTHERN HEMISPHERE STRATOSPHERE IN 1988 |
title_full_unstemmed |
MID-WINTER WARMINGS IN THE SOUTHERN HEMISPHERE STRATOSPHERE IN 1988 |
title_sort |
mid-winter warmings in the southern hemisphere stratosphere in 1988 |
publisher |
ABSTRACT |
publishDate |
1991 |
url |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=3650 http://id.nii.ac.jp/1291/00003650/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=3650&item_no=1&attribute_id=18&file_no=1 |
long_lat |
ENVELOPE(139.931,139.931,-66.690,-66.690) |
geographic |
Midwinter |
geographic_facet |
Midwinter |
genre |
Antarc* Antarctica Polar meteorology and glaciology Proceedings of the NIPR Symposium on Polar Meteorology and Glaciology |
genre_facet |
Antarc* Antarctica Polar meteorology and glaciology Proceedings of the NIPR Symposium on Polar Meteorology and Glaciology |
op_relation |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=3650 http://id.nii.ac.jp/1291/00003650/ AA10756213 Proceedings of the NIPR Symposium on Polar Meteorology and Glaciology, 4, 119(1991-05) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=3650&item_no=1&attribute_id=18&file_no=1 |
_version_ |
1766250417545543680 |