globalchange  > 影响、适应和脆弱性
DOI: 10.1002/2013MS000299
Scopus记录号: 2-s2.0-85027916966
论文题名:
The effects of vortex structure and vortex translation on the tropical cyclone boundary layer wind field
作者: Williams G; J; , Jr
刊名: Journal of Advances in Modeling Earth Systems
ISSN: 19422466
出版年: 2015
卷: 7, 期:1
起始页码: 188
结束页码: 214
语种: 英语
英文关键词: Advection ; Boundary layers ; Budget control ; Hurricanes ; Regression analysis ; Storms ; Tropics ; Vortex flow ; Eyewall ; Horizontal advection ; Horizontal diffusions ; Inner core ; Model representation ; Secondary circulation ; shocks ; Tropical cyclone ; Boundary layer flow ; advection ; anticyclone ; boundary layer ; diffusion ; inner core ; numerical model ; slab ; tropical cyclone ; vortex ; wind field
英文摘要: The effects of vortex translation and radial vortex structure in the distribution of boundary layer winds in the inner core of mature tropical cyclones are examined using a high-resolution slab model and a multilevel model. It is shown that the structure and magnitude of the wind field (and the corresponding secondary circulation) depends sensitively on the radial gradient of the gradient wind field above the boundary layer. Furthermore, it is shown that vortex translation creates low wave number asymmetries in the wind field that rotate anticyclonically with height. A budget analysis of the steady state wind field for both models was also performed in this study. Although the agradient force drives the evolution of the boundary layer wind field for both models, it is shown that the manner in which the boundary layer flow responds to this force differs between the two model representations. In particular, the inner core boundary layer flow in the slab model is dominated by the effects of horizontal advection and horizontal diffusion, leading to the development of shock structures in the model. Conversely, the inner core boundary layer flow in the multilevel model is primarily influenced by the effects of vertical advection and vertical diffusion, which eliminates shock structures in this model. These results further indicate that special care is required to ensure that qualitative applications from slab models are not unduly affected by the neglect of vertical advection. © 2014. The Authors.
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被引频次[WOS]:22   [查看WOS记录]     [查看WOS中相关记录]
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/76067
Appears in Collections:影响、适应和脆弱性
气候变化与战略

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作者单位: Department of Physics and Astronomy, College of Charleston, Charleston, SC, United States

Recommended Citation:
Williams G,J,, Jr. The effects of vortex structure and vortex translation on the tropical cyclone boundary layer wind field[J]. Journal of Advances in Modeling Earth Systems,2015-01-01,7(1)
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