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DOI | 10.1175/JAS-D-17-0098.1 |
Linking Hadley Circulation and Storm Tracks in a Conceptual Model of the Atmospheric Energy Balance | |
Mbengue, Cheikh1; Schneider, Tapio2 | |
2018-03-01 | |
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:3页码:841-856 |
文章类型 | Article |
语种 | 英语 |
国家 | England; USA |
英文摘要 | Midlatitude storm tracks shift in response to climate change and natural climate variations such as El Nino, but the dynamical mechanisms controlling these shifts are not well established. This paper develops an energy balance model that shows how shifts of the Hadley cell terminus and changes of the meridional energy flux out of the Hadley cell can drive shifts of storm tracks, identified as extrema of the atmospheric meridional eddy energy flux. The distance between the Hadley cell terminus and the storm tracks is primarily controlled by the energy flux out of the Hadley cell. Because tropical forcings alone can modify the Hadley cell terminus, they can also shift extratropical storm tracks, as demonstrated through simulations with an idealized GCM. Additionally, a strengthening of the meridional temperature gradient at the terminus and hence of the energy flux out of the Hadley cell can reduce the distance between the Hadley cell terminus and the storm tracks, enabling storm-track shifts that do not parallel shifts of the Hadley cell terminus. Thus, with the aid of the energy balance model and supporting GCM simulations, a closed theory of storm-track shifts emerges. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000429576900008 |
WOS关键词 | EXTRATROPICAL CYCLONE ACTIVITY ; STEADY-STATE MODELS ; CLIMATE-CHANGE ; NORTHERN-HEMISPHERE ; HEAT-TRANSPORT ; IDEALIZED GCM ; MOISTURE TRANSPORT ; REGIME TRANSITIONS ; BASIC STATE ; EDDIES |
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/29337 |
专题 | 地球科学 |
作者单位 | 1.Univ Oxford, Oxford, England; 2.CALTECH, Pasadena, CA 91125 USA |
推荐引用方式 GB/T 7714 | Mbengue, Cheikh,Schneider, Tapio. Linking Hadley Circulation and Storm Tracks in a Conceptual Model of the Atmospheric Energy Balance[J]. JOURNAL OF THE ATMOSPHERIC SCIENCES,2018,75(3):841-856. |
APA | Mbengue, Cheikh,&Schneider, Tapio.(2018).Linking Hadley Circulation and Storm Tracks in a Conceptual Model of the Atmospheric Energy Balance.JOURNAL OF THE ATMOSPHERIC SCIENCES,75(3),841-856. |
MLA | Mbengue, Cheikh,et al."Linking Hadley Circulation and Storm Tracks in a Conceptual Model of the Atmospheric Energy Balance".JOURNAL OF THE ATMOSPHERIC SCIENCES 75.3(2018):841-856. |
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