| DOI: | 10.1002/2014GL061188
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| 论文题名: | An analytic solution for barotropic flow along a variable slope topography |
| 作者: | Kuehl J.J.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-9643
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| EISSN: | 1944-9374
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| 出版年: | 2014
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| 卷: | 41, 期:21 | | 起始页码: | 7591
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| 结束页码: | 7594
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| 语种: | 英语
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| 英文关键词: | analytic solution
; cross-topography transport
; topographic control
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| Scopus关键词: | Boundary layers
; Equations of motion
; Analytic solution
; Barotropic currents
; cross-topography transport
; Heat-like equations
; Northern Gulf of Mexico
; Shallow water equations
; Similarity solution
; Topographic control
; Topography
; barotropic motion
; boundary layer
; Ekman transport
; geophysical survey
; oceanography
; shallow water
; slope dynamics
; Atlantic Ocean
; Gulf of Mexico
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| 英文摘要: | An analytic solution is derived for the generic oceanographic situation of a barotropic current flowing along sloping topography. It is shown that the shallow water equations can be reduced to a heat-like equation in which βeffect is balanced by Ekman dissipation. For constant topography, the system is found to admit a well-known similarity solution and this solution is generalized to the case of variable topography. Several properties of the solution are explored, and an example is given for flow along the northern Gulf of Mexico slope, between the De Soto Canyon and the Mississippi Canyon. This "Topographic β-plume" solution may serve as a model for further research concerning the influence exerted by geophysical boundary layers on the interior flow via their structure and stability. Key PointsA new analytic solution over variable slope topography is identifiedStreamwise independent solution over saddle-like topographyA mechanism for enhanced cross-topography transport is identified ©2014. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84912121199&doi=10.1002%2f2014GL061188&partnerID=40&md5=a3d9ac6c4e867732525910d552ea9cf2
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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/6907
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| Appears in Collections: | 气候减缓与适应
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作者单位: | Mechanical Engineering, Baylor University, Waco, TX, United States
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| Recommended Citation: | |
Kuehl J.J.. An analytic solution for barotropic flow along a variable slope topography[J]. Geophysical Research Letters,2014-01-01,41(21).
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