Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017JD027648 |
Lower-Stratospheric Control of the Frequency of Sudden Stratospheric Warming Events | |
Martineau, Patrick1; Chen, Gang2; Son, Seok-Woo3; Kim, Joowan4 | |
2018-03-27 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2018 |
卷号 | 123期号:6页码:3051-3070 |
文章类型 | Article |
语种 | 英语 |
国家 | Japan; USA; South Korea |
英文摘要 | The sensitivity of stratospheric polar vortex variability to the basic-state stratospheric temperature profile is investigated by performing a parameter sweep experiment with a dry dynamical core general circulation model where the equilibrium temperature profiles in the polar lower and upper stratosphere are systematically varied. It is found that stratospheric variability is more sensitive to the temperature distribution in the lower stratosphere than in the upper stratosphere. In particular, a cold lower stratosphere favors a strong time-mean polar vortex with a large daily variability, promoting frequent sudden stratospheric warming events in the model runs forced with both wavenumber-1 and wavenumber-2 topographies. This sensitivity is explained by the control exerted by the lower-stratospheric basic state onto fluxes of planetary-scale wave activity from the troposphere to the stratosphere, confirming that the lower stratosphere can act like a valve for the upward propagation of wave activity. It is further shown that with optimal model parameters, stratospheric polar vortex climatology and variability mimicking Southern and Northern Hemisphere conditions are obtained with both wavenumber-1 and wavenumber-2 topographies. |
英文关键词 | stratosphere troposphere vortex interactions coupling jet |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000430108900007 |
WOS关键词 | RELATIVELY SIMPLE AGCM ; IDEALIZED ATMOSPHERIC MODEL ; GENERAL-CIRCULATION MODEL ; NORTHERN ANNULAR MODE ; PLANETARY-WAVES ; PART I ; COUPLED SYSTEM ; INTERNAL VARIABILITY ; WINTER STRATOSPHERE ; SURFACE WEATHER |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/32294 |
专题 | 气候变化 |
作者单位 | 1.Univ Tokyo, Res Ctr Adv Sci & Technol, Tokyo, Japan; 2.Univ Calif Los Angeles, Dept Atmospher & Ocean Sci, Los Angeles, CA USA; 3.Seoul Natl Univ, Sch Earth & Environm Sci, Seoul, South Korea; 4.Kongju Natl Univ, Dept Atmospher Sci, Gongju, South Korea |
推荐引用方式 GB/T 7714 | Martineau, Patrick,Chen, Gang,Son, Seok-Woo,et al. Lower-Stratospheric Control of the Frequency of Sudden Stratospheric Warming Events[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2018,123(6):3051-3070. |
APA | Martineau, Patrick,Chen, Gang,Son, Seok-Woo,&Kim, Joowan.(2018).Lower-Stratospheric Control of the Frequency of Sudden Stratospheric Warming Events.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,123(6),3051-3070. |
MLA | Martineau, Patrick,et al."Lower-Stratospheric Control of the Frequency of Sudden Stratospheric Warming Events".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 123.6(2018):3051-3070. |
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