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DOI | 10.1007/s00382-015-2560-y |
A simple climatology of westerly jet streams in global reanalysis datasets part 1: mid-latitude upper tropospheric jets | |
Rikus, Lawrie | |
2018-04-01 | |
发表期刊 | CLIMATE DYNAMICS |
ISSN | 0930-7575 |
EISSN | 1432-0894 |
出版年 | 2018 |
卷号 | 50页码:2285-2310 |
文章类型 | Article |
语种 | 英语 |
国家 | Australia |
英文摘要 | A simple closed contour object identification scheme has been applied to the zonal mean monthly mean zonal wind fields from nine global reanalysis data sets for 31 years of the satellite era (1979-2009) to identify objects corresponding to westerly jet streams. The results cluster naturally into six individual jet streams but only the mid-latitude upper-tropospheric jets are considered here. The time series of the jet properties from all reanalyses are decomposed into seasonal means and anomalies, and correlations between variables are evaluated, with the aim of identifying robust features which can form the basis of evaluation metrics for climate model simulations of the twentieth century. There is substantial agreement between all the reanalyses for all jet properties although there are some systematic differences with particular data sets. Some of the results from the object identification applied to the reanalyses are used in a simple example of a model evaluation score for the zonal mean jet seasonal cycle. |
英文关键词 | Jet stream climatology Reanalysis data Upper tropospheric jets Object identification Seasonal cycle metric |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000428600200001 |
WOS关键词 | EDDY-DRIVEN JET ; DOE AMIP-II ; NORTHERN-HEMISPHERE ; TIME-SERIES ; VARIABILITY ; CIRCULATION ; TRENDS ; WINTER ; 20TH-CENTURY ; INDEXES |
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/36222 |
专题 | 气候变化 |
作者单位 | Bur Meteorol, Ctr Australian Weather & Climate Res, GPO Box 1289, Melbourne, Vic 3001, Australia |
推荐引用方式 GB/T 7714 | Rikus, Lawrie. A simple climatology of westerly jet streams in global reanalysis datasets part 1: mid-latitude upper tropospheric jets[J]. CLIMATE DYNAMICS,2018,50:2285-2310. |
APA | Rikus, Lawrie.(2018).A simple climatology of westerly jet streams in global reanalysis datasets part 1: mid-latitude upper tropospheric jets.CLIMATE DYNAMICS,50,2285-2310. |
MLA | Rikus, Lawrie."A simple climatology of westerly jet streams in global reanalysis datasets part 1: mid-latitude upper tropospheric jets".CLIMATE DYNAMICS 50(2018):2285-2310. |
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