| DOI: | 10.1002/jgrd.50758
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| 论文题名: | "Waveguidability" of idealized jets |
| 作者: | Manola I.; Selten F.; De Vries H.; Hazeleger W.
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| 刊名: | Journal of Geophysical Research Atmospheres
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| ISSN: | 21698996
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| 出版年: | 2013
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| 卷: | 118, 期:18 | | 起始页码: | 10432
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| 结束页码: | 10440
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| 语种: | 英语
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| 英文关键词: | barotropic model
; barotropic resonance
; jet stream
; Rossby wave
; stationary wave number
; wave propagation
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| Scopus关键词: | Wave energy conversion
; Wave propagation
; Waveguides
; Weather forecasting
; Barotropic
; Barotropic models
; Jet streams
; Rossby wave
; Stationary waves
; Mechanical waves
; barotropic wave
; data acquisition
; jet
; Rossby wave
; seasonal variation
; Southern Hemisphere
; standing wave
; wave energy
; zonal wind
; Austral Islands
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| 英文摘要: | It is known that strong zonal jets can act as waveguides for Rossby waves. In this study we use the European Center for Medium-Range Weather Forecasts (ECMWF) reanalysis data to analyze the connection between jets and zonal waves at timescales beyond 10 days. Moreover, a barotropic model is used to systematically study the ability of idealized jets to trap Rossby wave energy ("waveguidability") as a function of jet strength, jet width, and jet location. In general, strongest waveguidability is found for narrow, fast jets. In addition, when the stationary wave number is integer, a resonant response is found through constructive interference. In Austral summer, the Southern Hemispheric jet is closest to the idealized jets considered and it is for this season that similar jet-zonal wave relationships are identified in the ECMWF reanalysis data. Key Points Strong zonal waves act as waveguides (motivation)Stronger and narrower zonal jets lead to stronger zonal wavesAn integer stationary wavenumber leads to resonant response ©2013. American Geophysical Union. All Rights Reserved. |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/63297
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| Appears in Collections: | 影响、适应和脆弱性
气候减缓与适应
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作者单位: | Global Climate Department, Royal Netherlands Meteorological Institute, PO Box 201, 3730AE De Bilt, Netherlands
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| Recommended Citation: | |
Manola I.,Selten F.,De Vries H.,et al. "Waveguidability" of idealized jets[J]. Journal of Geophysical Research Atmospheres,2013-01-01,118(18)
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