石新刚,范植松,李培良

• 1:中国海洋大学海洋环境学院

摘要(Abstract)：

分别在由正压涨潮潮流和斜压环流、正压落潮潮流和斜压环流构成背景流场的情况下进行南海东北部深水海域(深水海盆和陆架坡折海域)大振幅内孤立波的数值模拟。分析正压潮流对内波模态结构函数φ(z),GK-dV方程非线性系数α、频散系数β、长内波相速度c、内孤立波振幅和波形的影响。发现正压潮流对φ(z)和β影响较小,而对α和c影响较大。对α的影响随着水深的变浅越来越大,而对c的影响是一致的,且当斜压环流与正压潮流同向时α(绝对值)和c值比较大。同时在诊断模拟内孤立波过程中发现,正压涨落潮潮流对内孤立波主孤立子波形和振幅影响的差别较小,但是对内孤立波的非线性演变过程影响的差别较大。

关键词(KeyWords)： 正压潮流;内孤立波;数值模拟;南海

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(40706055,40506006)资助

作者(Author): 石新刚,范植松,李培良

DOI: 10.16441/j.cnki.hdxb.2009.s1.055

参考文献(References)：

• Shi X G,Fan Z S,Liu HL.Anumerical calculation method of eigenvalue problemof nonlinearinternal waves[J].Journal of Hydrodynamics,Ser.B,2009,in press.
• [1]Klymak MJ,Pinkel R,Liu C T,et al.Prototypical solitons in theSouth China Sea[J].Geophys Res Letters,2006,33:L11607.
• [2]Lien R C,Tang T Y,Chang MH,et al.Energy of nonlinearinternalwavesin the South China Sea[J].Geophys Res Lett,2005,32,L05615,doi:10.1029/2004GL022012.
• [3]Holloway P E,Pelinovsky E,Talipova T,et al.Ageneralized Ko-rteweg-de Vries model of internal tide teansformation in the coastalzone[J].J Geophys Res,1999,104(C8):18333-18350.
• [4]Apel J R,HolbrookJ R,Liu AK,et al.The Sulu Seainternal solitonexperi ment[J].J Phys Oceanogr,1985,15:1625-1651.
• [5]Liu A K,Holbrook J R,Apel J R.Nonlinear internal wave evolutionin the Sulu Sea[J].J Phys Oceanogr,1985,15:1613-1624.
• [6]Holloway P E,Pelinovsky E,Talipova T,et al.Anonlinear model ofinternal tide transformation onthe Australian North West Shelf[J].JPhys Oceanogr,1997,27:871-896.
• [7]Fan Z S,Zhan Y L,Song M.Astudy of SARremote sensing of in-ternal solitary waves in the north of the South China Sea:I.Si mula-tion of internal tide transformation[J].Acta Oceanologica Sinica,2008,27(4):39-56.
• [8]Cai S Q,Long X M,Dong D P,et al.Backgroundcurrent affectstheinternal wave structure of the northern South China Sea[J].Progressin Natural Science,2008,18:585-589.
• [9]Ramp S R,Chiu C S.The shelf-edge frontal structure in the centralEast China Sea and its i mpact on low-frequency acoustic propagation[J].IEEEJ Oceanic Engineering,2004,29(4):1011-1031.
• [10]Lee J H,Lozovatsky I,Jang S T,et al.Episodes of nonlinearinter-nal waves inthe northern East China Sea[J].Geophys Res Letters,2006,33(18):L18601.
• [11]刘海龙,俞永强,李薇,等.LASG/IAP气候系统海洋模式(LI-COM1.0)参考手册[M].北京:科学出版社,2004:107.
• [12]Liu HL,Li W,Zhang X H.Cli matology and variability of the in-donesian throughflowinthe eddy-permitting oceanic GCM[J].Ad-vances in Atmospheric Sciences,2005,22(4):496-508.
• [13]Le Provost,Lyard F,Molines J M,et al.A hydrodynamic oceantide model i mproved by assi milating a satellite alti meter-drived dataset[J].Journal of Geophysical Research,1998,103(C3):5513-5529.
• [14]Beardsley R C,Duda T F,Lynch J F,et al.Barotropic tide in theNortheast South China Sea[J].IEEE J Oceanic Engineering,2004,29(4):1075-1086.
• [15]Zhao Z,Alford M H.Source and propagation of internal solitarywavesin the northeastern South China Sea[J].J Geophys Res,2006,111,C11012,doi:10.1029/2006JC003644.
• [16]Zheng Q,Yuan Y,Klemas V,et al.Theoretical expression for anocean internal soliton synthetic aperture radar i mage and determina-tion of the soliton characteristic width[J].J Geophys Res,2001,106(C11):31415-31423.

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