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Oblique interactions of mode-1 and mode-2 internal solitary waves in the presence of variable topography

文献类型：期刊论文

作者Yan, Hao1; Wang, Zhan2,3; Yuan, Chunxin1; Gong, Yankun4; Chen, Xueen5
刊名OCEAN MODELLING
出版日期2025-07-01
卷号196页码:13
关键词Internal solitary waves Oblique collision Mode transformations Numerical simulations
ISSN号1463-5003
DOI10.1016/j.ocemod.2025.102555
通讯作者Yuan, Chunxin(yuanchunxin@ouc.edu.cn)
英文摘要Oblique interactions between internal solitary waves (ISWs) are frequently observed in oceanic environments. However, interactions involving different vertical modes, particularly between the most common mode-1 and mode-2 ISWs, remain poorly understood. To address this gap in knowledge, this study investigates the oblique interactions between mode-1 and mode-2 ISWs using a three-dimensional, high-resolution MITgcm ocean model. We consider three scenarios involving initial idealized V-shaped ISWs in a continuously stratified environment. The results show that interactions between two mode-1 ISWs over flat bottom topography align well with theoretical predictions. In contrast, interactions between two mode-2 ISWs demonstrate stronger attenuation due to potential instabilities arising from their complex vertical structures. When examining interactions between one mode-1 ISW and one mode-2 ISW, the differing phase speeds prevent the formation of Mach stems, resulting in non-resonant, refraction-like patterns. However, in the presence of a submarine cliff, where the phase speeds of these two modes become comparable, the interactions showed Mach stem-like features, along with energy transfer from mode-1 to mode-2 ISWs. Additionally, the presence of shoaling topography can lead to the emergence of mode-3 ISWs and polarity reversals.
WOS关键词MACH REFLECTION ; EVOLUTION ; MECHANISMS
资助项目National Natural Science Foundation of China[42476014] ; National Natural Science Foundation of China[12132018] ; National Natural Science Foundation of China[12325207] ; Shandong Provincial Qingchuang Science and Technology Project[2023KJ039] ; Fundamental Research Funds for the Central Universities, China[202442002] ; Fundamental Research Funds for the Central Universities, China[202264007] ; Fundamental Research Funds for the Central Universities, China[202265005] ; State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, China[LTO2303]
WOS研究方向Meteorology & Atmospheric Sciences ; Oceanography
语种英语
WOS记录号WOS:001487666800001
资助机构National Natural Science Foundation of China ; Shandong Provincial Qingchuang Science and Technology Project ; Fundamental Research Funds for the Central Universities, China ; State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, China
源URL[http://dspace.imech.ac.cn/handle/311007/101583]  
专题力学研究所_流固耦合系统力学重点实验室(2012-)
力学研究所_非线性力学国家重点实验室
通讯作者Yuan, Chunxin
作者单位1.Ocean Univ China, Sch Math Sci, Songling 238 Rd, Qingdao 266100, Peoples R China
2.Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, 15 Beisihuanxi Rd, Beijing 100190, Peoples R China
3.Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, 15 Beisihuanxi Rd, Beijing 100190, Peoples R China
4.Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, 1111 Haibin Rd, Guangzhou 510301, Peoples R China
5.Ocean Univ China, Coll Ocean & Atmospher Sci, Songling 238 Rd, Qingdao 266100, Peoples R China
推荐引用方式
GB/T 7714		 Yan, Hao,Wang, Zhan,Yuan, Chunxin,et al. Oblique interactions of mode-1 and mode-2 internal solitary waves in the presence of variable topography[J]. OCEAN MODELLING,2025,196:13.
APA Yan, Hao,Wang, Zhan,Yuan, Chunxin,Gong, Yankun,&Chen, Xueen.(2025).Oblique interactions of mode-1 and mode-2 internal solitary waves in the presence of variable topography.OCEAN MODELLING,196,13.
MLA Yan, Hao,et al."Oblique interactions of mode-1 and mode-2 internal solitary waves in the presence of variable topography".OCEAN MODELLING 196(2025):13.

入库方式： OAI收割

来源：力学研究所

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