Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1175/JAS-D-17-0399.1 |
The Vertical Structure of Annular Modes | |
Sheshadri, Aditi1; Plumb, R. Alan2; Lindgren, Erik A.2; Domeisen, Daniela I. V.3 | |
2018-10-01 | |
发表期刊 | JOURNAL OF THE ATMOSPHERIC SCIENCES
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ISSN | 0022-4928 |
EISSN | 1520-0469 |
出版年 | 2018 |
卷号 | 75期号:10页码:3507-3519 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Switzerland |
英文摘要 | Stratosphere-troposphere interactions are conventionally characterized using the first empirical orthogonal function (EOF) of fields such as zonal-mean zonal wind. Perpetual-winter integrations of an idealized model are used to contrast the vertical structures of EOFs with those of principal oscillation patterns (POPs; the modes of a linearized system governing the evolution of zonal flow anomalies). POP structures are shown to be insensitive to pressure weighting of the time series of interest, a factor that is particularly important for a deep system such as the stratosphere and troposphere. In contrast, EOFs change from being dominated by tropospheric variability with pressure weighting to being dominated by stratospheric variability without it. The analysis reveals separate tropospheric and stratospheric modes in model integrations that are set up to resemble midwinter variability of the troposphere and stratosphere in both hemispheres. Movies illustrating the time evolution of POP structures show the existence of a fast, propagating tropospheric mode in both integrations, and a pulsing stratospheric mode with a tropospheric extension in the Northern Hemisphere-like integration. |
英文关键词 | Annular mode Stratosphere-troposphere coupling |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000444223700001 |
WOS关键词 | STRATOSPHERIC SUDDEN WARMINGS ; OSCILLATION PATTERN-ANALYSIS ; ZONAL FLOW FEEDBACK ; PART I ; EXTRATROPICAL CIRCULATION ; 60-DAY OSCILLATION ; VARIABILITY ; TROPOSPHERE ; 30-DAY ; INDEX |
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/29234 |
专题 | 地球科学 |
作者单位 | 1.Stanford Univ, Dept Earth Syst Sci, Stanford, CA 94305 USA; 2.MIT, Dept Earth Atmospher & Planetary Sci, Cambridge, MA USA; 3.Swiss Fed Inst Technol, Inst Atmospher & Climate Sci, Zurich, Switzerland |
推荐引用方式 GB/T 7714 | Sheshadri, Aditi,Plumb, R. Alan,Lindgren, Erik A.,et al. The Vertical Structure of Annular Modes[J]. JOURNAL OF THE ATMOSPHERIC SCIENCES,2018,75(10):3507-3519. |
APA | Sheshadri, Aditi,Plumb, R. Alan,Lindgren, Erik A.,&Domeisen, Daniela I. V..(2018).The Vertical Structure of Annular Modes.JOURNAL OF THE ATMOSPHERIC SCIENCES,75(10),3507-3519. |
MLA | Sheshadri, Aditi,et al."The Vertical Structure of Annular Modes".JOURNAL OF THE ATMOSPHERIC SCIENCES 75.10(2018):3507-3519. |
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