DOI: 10.1002/2016GL067849
论文题名: The role of planetary waves in the tropospheric jet response to stratospheric cooling
作者: Smith K.L. ; Scott R.K.
刊名: Geophysical Research Letters
ISSN: 0094-9189
EISSN: 1944-8920
出版年: 2016
卷: 43, 期: 6 起始页码: 2904
结束页码: 2911
语种: 英语
英文关键词: idealized modeling
; planetary waves
; stratosphere-troposphere coupling
Scopus关键词: Earth sciences
; Geophysics
; Bias correction
; General circulation model
; Idealized models
; Jet response
; Planetary scale
; Planetary Waves
; Radiative equilibrium
; Stratosphere-troposphere coupling
; Troposphere
; atmospheric correction
; climatology
; cooling
; general circulation model
; jet flow
; planetary wave
; seasonality
; stratosphere-troposphere interaction
英文摘要: An idealized general circulation model is used to assess the importance of planetary-scale waves in determining the position of the tropospheric jet, specifically its tendency to shift poleward as winter stratospheric cooling is increased. Full model integrations are compared against integrations in which planetary waves are truncated in the zonal direction, and only synoptic-scale waves are retained. Two series of truncated integrations are considered, using (i) a modified radiative equilibrium temperature or (ii) a nudged-bias correction technique. Both produce tropospheric climatologies that are similar to the full model when stratospheric cooling is weak. When stratospheric cooling is increased, the results indicate that the interaction between planetary- and synoptic-scale waves plays an important role in determining the structure of the tropospheric mean flow and rule out the possibility that the jet shift occurs purely as a response to changes in the planetary- or synoptic-scale wave fields alone. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84977987218&doi=10.1002%2f2016GL067849&partnerID=40&md5=848fb85ae98dd2f130c62588ca9ffd16
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/10152
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: Division of Ocean and Climate Physics, Lamont-Doherty Earth Observatory, Palisades, NY, United States
Recommended Citation:
Smith K.L.,Scott R.K.. The role of planetary waves in the tropospheric jet response to stratospheric cooling[J]. Geophysical Research Letters,2016-01-01,43(6).