Internal solitary wave generation by the tidal flows beneath ice keel in the Arctic Ocean

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	Internal solitary wave generation by the tidal flows beneath ice keel in the Arctic Ocean
	Peiwen ZHANG; Qun LI ; Zhenhua XU ; Baoshu YIN
发表期刊	Journal of Oceanology and Limnology
ISSN	2096-5508
	2022-05-15
出版年	2022
卷号	v.40 期号:03 页码:3-17
文献类型	CNKI期刊论文
摘要	A series of non-hydro static,non-linear numerical simulations were carried out to investigate the generation and evolution of internal solitary waves(ISWs) through the interaction of a barotropic tidal current with an ice keel in the Arctic Ocean.During the interaction process,the internal surge was generated at first,and then the wave gradually steepened due to non-linearity during its propagation away from the ice keel.The internal surge eventually disintegrated into multi-modal and rank-ordered ISW packets with the largest having an amplitude of O(10) m.Sensitivity experiments demonstrated that the ISWs' amplitudes and energy were proportional to the varying ice keel depths and barotropic tidal flow amplitudes,but were insensitive to the changing ice keel widths.Typical ISWs can enhance the turbulent dissipation rate of O(10~(-6)) W/kg along their propagation path.Further,heat entrainment induced by the wave-ice interaction can reach O(10) MJ/m per tidal cycle.This study reveals a particular ISW generation mechanism and process in the polar ice environment,which could be important in impacting the energy transfer and heat balance in the Arctic Ocean.
关键词	internal solitary wave(ISW) barotropic tidal flow ice keel the Arctic Ocean
CNKI专辑号	A;
CNKI专辑名称	基础科学;
CNKI专题号	A010;
CNKI专题名称	海洋学;
分类号	P731.2
收录类别	中科院核心 ; 中科院扩展
语种	英文;
资助项目(基金）	Supported by the National Key Research and Development Program of China and National Natural Science Foundation of China (Nos.2019YFE0105700,2016YFC1402705,2017YFA0604102,92058202,9185 8103,42176244,2016YFC1401404) ; the Strategic Priority Research Program of Chinese Academy of Sciences (Nos.XDA22050202,XDB42000000) ; the CAS Key Research Program of Frontier Sciences and Key Deployment Project of Centre for Ocean Mega-Research of Science(Nos.QYZDB-SSW-DQC024,COMS2020Q07) ; the project jointly funded by the CAS and CSIRO (No.133244KYSB20190031)
文献类型	CNKI期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/187430
专题	中国科学院海洋研究所
作者单位	1.CASKeyLaboratoryofOceanCirculationandWaves,InstituteofOceanologyChineseAcademyofSciences 2.CenterforOceanMega-Science,ChineseAcademyofSciences 3.CollegeofEarthandPlanetarySciences,UniversityofChineseAcademyofSciences 4.MNRKeyLaboratoryforPolarScience,PolarResearchInstituteofChina 5.PilotNationalLaboratoryforMarineScienceandTechnology(Qingdao) 6.CASEngineeringLaboratoryforMarineRanching,InstituteofOceanology,ChineseAcademyofSciences
推荐引用方式 GB/T 7714	Peiwen ZHANG,Qun LI,Zhenhua XU,et al. Internal solitary wave generation by the tidal flows beneath ice keel in the Arctic Ocean. 2022.