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学科主题: Oceanography
题名: A numerical study of the generation and propagation of internal solitary waves in the Luzon Strait
作者: Cai, SQ ; Long, XM ; Gan, ZJ
关键词: internal wave ; soliton ; numerical model ; South China Sea
刊名: OCEANOLOGICA ACTA
发表日期: 2002
卷: 25, 期:2, 页:51-60
收录类别: sci
部门归属: Chinese Acad Sci, S China Sea Inst Oceanol, LED, Guangzhou 510301, Peoples R China
项目归属: LED
摘要: A new composite model, which consists of a generation model of the internal tides and a regularized long wave propagation model, is presented to study the generation and evolution of internal solitary waves in the sill strait. Internal bores in the sill strait are first simulated by the generation model. and then the internal tidal field outside of the sill region is given as input for the propagation model. Numerical experiments are carried out to Study the imposing tide, depth profile. channel width and shoaling effect, etc., on the generation and evolution of internal solitary waves. It is shown that only when the amplitude of internal tide at the forcing boundary of the propagation model is large enough that a train of internal solitary waves would be induced. The amplitude of the imposing tide in the generation model, shoaling effect, asymmetry of the depth profile and channel width have some effects on the amplitude of the induced internal solitary wave. The imposing tidal flow superimposed on a constant mean background flow has a great damping effect on the induced internal waves, especially on those propagate against the background flow direction. The generation and propagation of internal solitary waves in three possible straits among the Luzon Strait are simulated. and the reasons for the asymmetry of their propagation are also explained. (C) 2002 Ifremer/CNRS/IRD/Editions scientifiques of medicales Elsevier SAS. All rights reserved.
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WOS记录号: WOS:000175759700001
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内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/5513
Appears in Collections:热带海洋环境动力实验室(LTO)_期刊论文

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Cai, SQ; Long, XM; Gan, ZJ.A numerical study of the generation and propagation of internal solitary waves in the Luzon Strait,OCEANOLOGICA ACTA,2002,25(2):51-60
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