globalchange  > 气候减缓与适应
DOI: 10.1002/2017JC013531
Scopus记录号: 2-s2.0-85041695478
论文题名:
Nonlinear Dynamics of the Nearshore Boundary Layer of a Large Lake (Lake Geneva)
作者: Cimatoribus A.A.; Lemmin U.; Bouffard D.; Barry D.A.
刊名: Journal of Geophysical Research: Oceans
ISSN: 21699275
出版年: 2018
卷: 123, 期:2
起始页码: 1016
结束页码: 1031
语种: 英语
英文关键词: coastal boundary layer ; internal waves ; lake ; nonlinearity ; seiche ; spectra
Scopus关键词: boundary layer ; coastal zone ; internal wave ; kinetic energy ; lake water ; momentum ; nearshore environment ; nonlinearity ; numerical model ; seiche ; wind forcing ; Lake Geneva
英文摘要: We examine nearshore and pelagic current variability in Lake Geneva, a large and deep lake in western Europe, using observations from several measurement locations and a three-dimensional numerical model for the period 2014–2016. Linear internal seiche modes excited by wind forcing clearly appear as peaks in the energy spectra for measurements in offshore locations. In contrast, spectra from the nearshore data, where currents interact with the lake bed, reveal a negligible contribution of internal seiches to the total kinetic energy. A similar contrast is seen in the spectra obtained from the numerical model at the same locations. Comparing the contribution of the different terms in the vertically averaged momentum equation from the modeling results shows that the nonlinear advective term dominates in the nearshore boundary layer. Its contribution decays with distance from shore. The width of this nearshore boundary layer, which may extend for several kilometers, seems to be mainly determined by local topography. Both field measurements and modeling results indicate that nonlinear dynamics are of primary importance in the nearshore boundary layer. © 2018. The Authors.
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被引频次[WOS]:23   [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/114526
Appears in Collections:气候减缓与适应

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作者单位: School of Architecture, Civil and Environmental Engineering, École Polytechnique Fédérale de Lausanne, Ecological Engineering Laboratory, Institute of Environmental Engineering, Lausanne, Switzerland; Aquatic Physics Group, Department of Surface Waters Research and Management, Swiss Federal Institute of Aquatic Science and Technology, Kastanienbaum, Switzerland; School of Architecture, Civil and Environmental Engineering, Physics of Aquatic Systems Laboratory, Institute of Environmental Engineering, École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland

Recommended Citation:
Cimatoribus A.A.,Lemmin U.,Bouffard D.,et al. Nonlinear Dynamics of the Nearshore Boundary Layer of a Large Lake (Lake Geneva)[J]. Journal of Geophysical Research: Oceans,2018-01-01,123(2)
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