Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017GL076886 |
Rossby Wave Propagation into the Northern Hemisphere Stratosphere: The Role of Zonal Phase Speed | |
Domeisen, Daniela I. V.1; Martius, Olivia2; Jimenez-Esteve, Bernat1 | |
2018-02-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2018 |
卷号 | 45期号:4页码:2064-2071 |
文章类型 | Article |
语种 | 英语 |
国家 | Switzerland |
英文摘要 | Sudden stratospheric warming (SSW) events are to a dominant part induced by upward propagating planetary waves. While theory predicts that the zonal phase speed of a tropospheric wave forcing affects wave propagation into the stratosphere, its relevance for SSW events has so far not been considered. This study shows in a linear wave diagnostic and in reanalysis data that phase speeds tend eastward as waves propagate upward, indicating that the stratosphere preselects eastward phase speeds for propagation, especially for zonal wave number 2. This also affects SSW events: Split SSW events tend to be preceded by anomalously eastward zonal phase speeds. Zonal phase speed may indeed explain part of the increased wave flux observed during the preconditioning of SSW events, as, for example, for the record 2009 SSW event. |
英文关键词 | stratospheric dynamics sudden stratospheric warmings zonal phase speed stratosphere-troposphere coupling |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000427564300043 |
WOS关键词 | STATIONARY LONG WAVES ; SUDDEN WARMING EVENT ; PLANETARY-WAVES ; NUMERICAL-MODEL ; WEATHER REGIMES ; ACTIVITY FLUX ; JANUARY 2009 ; VARIABILITY ; DISTURBANCES ; VORTEX |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
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/25852 |
专题 | 气候变化 |
作者单位 | 1.Swiss Fed Inst Technol, Inst Atmospher & Climate Sci, Zurich, Switzerland; 2.Univ Bern, Inst Geog, Oeschger Ctr Climate Change Res, Bern, Switzerland |
推荐引用方式 GB/T 7714 | Domeisen, Daniela I. V.,Martius, Olivia,Jimenez-Esteve, Bernat. Rossby Wave Propagation into the Northern Hemisphere Stratosphere: The Role of Zonal Phase Speed[J]. GEOPHYSICAL RESEARCH LETTERS,2018,45(4):2064-2071. |
APA | Domeisen, Daniela I. V.,Martius, Olivia,&Jimenez-Esteve, Bernat.(2018).Rossby Wave Propagation into the Northern Hemisphere Stratosphere: The Role of Zonal Phase Speed.GEOPHYSICAL RESEARCH LETTERS,45(4),2064-2071. |
MLA | Domeisen, Daniela I. V.,et al."Rossby Wave Propagation into the Northern Hemisphere Stratosphere: The Role of Zonal Phase Speed".GEOPHYSICAL RESEARCH LETTERS 45.4(2018):2064-2071. |
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