NSSC OpenIR  > 空间环境部
Variability of MLT winds and waves over mid-latitude during the 2000/2001 and 2009/2010 winter stratospheric sudden warming
Chen, X.; Hu, X.; Xiao, C.; Hu, X (reprint author), Chinese Acad Sci, Ctr Space Sci & Appl Res, Beijing 100190, Peoples R China.
Department空间环境部
Source PublicationANNALES GEOPHYSICAE
2012
Volume30Issue:6Pages:991-1001
ISSN0992-7689
Language英语
KeywordMeteorology And Atmospheric Dynamics Middle Atmosphere Dynamics
AbstractThe mesosphere and lower thermosphere (MLT) wind structure over Wuhan (30A degrees N, 114A degrees E) in 2000/2001 winter and over Langfang (39.4A degrees N, 116.6A degrees E) in 2009/2010 winter are examined to reveal the effects of stratospheric sudden warming (SSW) in mid-low-latitude MLT region. The result shows that the MLT daily zonal wind over these two sites reversed from eastward wind to westward wind for several days during the SSW events. The reversals were almost coincident with the polar stratospheric temperature reaching its maximum at 10 hPa, 90A degrees N and were about ten days prior to the reversal of high latitude stratospheric zonal wind at 10 hPa, 60A degrees N. The temporal variations of tides, gravity waves and 2-day planetary waves in the mid-latitude MLT showed different behavior during the two SSW events. During the 2001 SSW event, MLT diurnal tide reached its maximum when the MLT zonal wind decreased rapidly and SSW event began in polar stratosphere; the activity of 2-day waves decreased after the onset of the 2001 SSW, while the gravity wave increased when the 2001 SSW developed into a major warming. However, in the 2009/2010 winter, the semidiurnal tide and 2-day wave in MLT over Langfang reached a peak about two days earlier than zonal wind reversal at 10 hPa, 60A degrees N; no significant features were found in diurnal tides, terdiurnal tides and gravity waves related to the 2010 SSW event.; The mesosphere and lower thermosphere (MLT) wind structure over Wuhan (30A degrees N, 114A degrees E) in 2000/2001 winter and over Langfang (39.4A degrees N, 116.6A degrees E) in 2009/2010 winter are examined to reveal the effects of stratospheric sudden warming (SSW) in mid-low-latitude MLT region. The result shows that the MLT daily zonal wind over these two sites reversed from eastward wind to westward wind for several days during the SSW events. The reversals were almost coincident with the polar stratospheric temperature reaching its maximum at 10 hPa, 90A degrees N and were about ten days prior to the reversal of high latitude stratospheric zonal wind at 10 hPa, 60A degrees N. The temporal variations of tides, gravity waves and 2-day planetary waves in the mid-latitude MLT showed different behavior during the two SSW events. During the 2001 SSW event, MLT diurnal tide reached its maximum when the MLT zonal wind decreased rapidly and SSW event began in polar stratosphere; the activity of 2-day waves decreased after the onset of the 2001 SSW, while the gravity wave increased when the 2001 SSW developed into a major warming. However, in the 2009/2010 winter, the semidiurnal tide and 2-day wave in MLT over Langfang reached a peak about two days earlier than zonal wind reversal at 10 hPa, 60A degrees N; no significant features were found in diurnal tides, terdiurnal tides and gravity waves related to the 2010 SSW event.
Indexed BySCI ; EI
Funding Project中国科学院空间科学与应用研究中心
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/2933
Collection空间环境部
Corresponding AuthorHu, X (reprint author), Chinese Acad Sci, Ctr Space Sci & Appl Res, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Chen, X.,Hu, X.,Xiao, C.,et al. Variability of MLT winds and waves over mid-latitude during the 2000/2001 and 2009/2010 winter stratospheric sudden warming[J]. ANNALES GEOPHYSICAE,2012,30(6):991-1001.
APA Chen, X.,Hu, X.,Xiao, C.,&Hu, X .(2012).Variability of MLT winds and waves over mid-latitude during the 2000/2001 and 2009/2010 winter stratospheric sudden warming.ANNALES GEOPHYSICAE,30(6),991-1001.
MLA Chen, X.,et al."Variability of MLT winds and waves over mid-latitude during the 2000/2001 and 2009/2010 winter stratospheric sudden warming".ANNALES GEOPHYSICAE 30.6(2012):991-1001.
Files in This Item:
File Name/Size DocType Version Access License
2012306991.pdf(1192KB) 开放获取CC BY-NC-SAApplication Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Chen, X.]'s Articles
[Hu, X.]'s Articles
[Xiao, C.]'s Articles
Baidu academic
Similar articles in Baidu academic
[Chen, X.]'s Articles
[Hu, X.]'s Articles
[Xiao, C.]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Chen, X.]'s Articles
[Hu, X.]'s Articles
[Xiao, C.]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.