Secondary planetary waves in the middle and upper atmosphere following the stratospheric sudden warming event of January 2012

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题名:	Secondary planetary waves in the middle and upper atmosphere following the stratospheric sudden warming event of January 2012
作者:	張起維;Chandran, A.;Garcia, R. R.;Collins, R. L.;Chang, L. C.
贡献者:	地球科學學院太空科學與工程學系
关键词:	2012 stratospheric sudden warming;Atmosphere;Atmospheres;Atmospheric models;Broadband;Climate models;Elevated;Instability;Ionosphere;Mesosphere;Meteorology;MLT;Planetary waves;Stratopause;Stratosphere;Thermosphere;Upper atmosphere;Waves
日期:	2013-05-16
上传时间:	2026-04-23 11:05:55 (UTC+8)
出版者:	Wiley-Blackwell;Washington: Blackwell Publishing Ltd
摘要:	摘要： AbstractThe role of planetary waves in causing stratospheric sudden warmings (SSWs) is well understood and quantified. However, recent studies have indicated that secondary planetary waves are excited in the mesosphere and lower thermosphere following SSWs. We use a version of the Whole Atmosphere Community Climate Model constrained by reanalysis data below 50 km to simulate the SSW of January 2012, a minor warming followed by the formation of an elevated stratopause. We document the occurrence of enhanced Eliassen‐Palm flux divergence in the mesosphere and lower thermosphere associated with faster, secondary westward‐propagating planetary waves of wave number 1 and period <10 days. We confirm the presence of these secondary planetary waves using observations made by the Sounding of the Atmosphere using the Broadband Emission Radiometry instrument onboard NASA's Thermosphere‐Ionosphere‐Mesosphere Energetics and Dynamics satellite. 其他題名： Geophys. Res. Lett 出版者： Washington: Blackwell Publishing Ltd 出版日期： 2013-05-16 出處： Geophysical Research Letters, 2013-05, Vol.40 (9), p.1861-1867 資源來源： Wiley Online Library Journals 版權： 2013. American Geophysical Union. All Rights Reserved. 識別號： ISSN: 0094-8276 識別號： EISSN: 1944-8007 識別號： DOI: 10.1002/grl.50373
显示于类别:	[太空科學與工程學系] 期刊論文

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