| DOI: | 10.1002/2014GL061807
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| 论文题名: | Waves in a Venus general circulation model |
| 作者: | Sugimoto N.; Takagi M.; Matsuda Y.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-9617
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| EISSN: | 1944-9348
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| 出版年: | 2014
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| 卷: | 41, 期:21 | | 起始页码: | 7461
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| 结束页码: | 7467
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| 语种: | 英语
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| 英文关键词: | GCM
; superrotation
; Venus atmosphere
; waves
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| Scopus关键词: | Life cycle
; Potential energy
; Waves
; Baroclinic waves
; Equatorial regions
; GCM
; General circulation model
; Meridional distribution
; Spatio-temporal variation
; superrotation
; Venus atmospheres
; Mechanical waves
; baroclinic motion
; general circulation model
; meridional circulation
; planetary atmosphere
; Venus
; wave modeling
; zonal flow
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| 英文摘要: | Waves in the Venus atmosphere are numerically investigated by extending a work of Sugimoto et al. (2014). Fast superrotating zonal flow of 120 m s-1 at the equator is reproduced and maintained by solar heating for more than 10 Earth years. The meridional distribution of the obtained fast zonal flow is quite consistent with observations at the cloud levels. In the cloud layer, baroclinic waves develop continuously with a life cycle of ~25 Earth days at midlatitudes, using available potential energy derived from a baroclinically unstable basic state. Rossby waves observed at the cloud top are generated by the baroclinic waves and induce spatio-temporal variation of the superrotation with amplitude larger than 25 m s-1. Further, Kelvin waves with a period of ∼ 6.2 days appear in the equatorial region below ~50 km. Momentum and heat transports produced by these waves are discussed. Key Points Realistic Venus superrotating flow is reproduced self-consistently in the GCMSo-called Rossby waves on Venus are generated by the baroclinic wavesObserved variations of the superrotation are caused by the baroclinic waves ©2014. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84912074163&doi=10.1002%2f2014GL061807&partnerID=40&md5=4795ed6c1a9beb046bdfc42a29e9e62e
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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/6881
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| Appears in Collections: | 气候减缓与适应
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作者单位: | Research and Education Center for Natural Sciences, Department of Physics, Keio University, Yokohama, Japan
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| Recommended Citation: | |
Sugimoto N.,Takagi M.,Matsuda Y.. Waves in a Venus general circulation model[J]. Geophysical Research Letters,2014-01-01,41(21).
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