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Radiation Path of Diurnal Internal Tides in the Northwestern Pacific Controlled by Refraction and Interference

文献类型：期刊论文

作者Wang, Yang3,4,5,6; Xu, Zhenhua2,3,4,5,6; Hibiya, Toshiyuki1; Yin, Baoshu2,3,4,5,6; Wang, Fan3,4,5,6
刊名JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
出版日期2021-11-01
卷号126期号:11页码:28
ISSN号2169-9275
关键词internal tide Western Pacific Kuroshio refraction numerical simulation eddy NEC
DOI10.1029/2020JC016972
通讯作者Xu, Zhenhua(xuzhenhua@qdio.ac.cn) ; Yin, Baoshu(bsyin@qdio.ac.cn)
英文摘要The diurnal internal tides contribute nearly a quarter of global baroclinic tidal energy. However, their roles in shaping the spatiotemporal inhomogeneity of the tidal energy field are not well known. Based on observation-supported numerical simulation and theoretical analyses, we clarify the combined and relative contributions of beta refraction, subtidal circulation refraction and multiwave interference to the long-range radiation and dissipation maps of diurnal internal tides in the northwestern Pacific. The diurnal tidal beams primarily emanate from the Luzon Strait (LS) and Talaud-Halmahera Passage (THP). The beta refraction shifts the mean path of the LS tidal beam equatorward by similar to 40 degrees when it arrives at the deep basin. This is consistent with previous altimetric observations. A second refraction effect by subtidal circulation with seasonal variability deflects the mean beam path by similar to 10 degrees. Multiwave interference of the tidal beams from the LS and THP further enhances the inhomogeneous pattern. It enhances or reduces the energy fluxes of the tidal beams with distinct vertical structures in the western Mariana basin. A modified line-source model and theoretical ray-tracing analysis explain the effects of refraction and interference well. The internal tidal dissipation map in the deep basin coincides well with the inhomogeneous and spreading radiation paths. The characterization of the world's most energetic diurnal internal tides in the northwestern Pacific could improve our understanding of global baroclinic tidal energy redistribution and tidal mixing geography.
资助项目Strategic Pioneering Research Program of CAS ; National Natural Science Foundation of China ; National Key Research and Development Program of China[XDB42000000] ; National Key Research and Development Program of China[XDA22050202] ; National Key Research and Development Program of China[42006031] ; National Key Research and Development Program of China[92058202] ; National Key Research and Development Program of China[91858103] ; National Key Research and Development Program of China[2017YFA0604102] ; CAS Key Research Program of Frontier Sciences and Key Deployment Project of Centre for Ocean Mega-Research of Science[QYZDB-SSWDQC024] ; CAS Key Research Program of Frontier Sciences and Key Deployment Project of Centre for Ocean Mega-Research of Science[COMS2020Q07] ; CAS-CSIRO Jointly Project[133244KYSB20190031] ; High Performance Computing Center at the IOCAS
WOS研究方向Oceanography
语种英语
出版者AMER GEOPHYSICAL UNION
WOS记录号WOS:000723095600004
源URL[http://ir.qdio.ac.cn/handle/337002/177437]  
专题海洋研究所_海洋环流与波动重点实验室
海洋研究所_海洋生态与环境科学重点实验室
通讯作者Xu, Zhenhua; Yin, Baoshu
作者单位1.Univ Tokyo, Dept Earth & Planetary Sci, Grad Sch Sci, Tokyo, Japan
2.Chinese Acad Sci, Inst Oceanol, CAS Engn Lab Marine Ranching, Qingdao, Peoples R China
3.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China
4.Chinese Afcademy Sci, Ctr Ocean Megasci, Qingdao, Peoples R China
5.Pilot Natl Lab Marine Sci & Technol, Qingdao, Peoples R China
6.Chinese Acad Sci, CAS Key Lab Ocean Circulat & Waves, Inst Oceanol, Qingdao, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Yang,Xu, Zhenhua,Hibiya, Toshiyuki,et al. Radiation Path of Diurnal Internal Tides in the Northwestern Pacific Controlled by Refraction and Interference[J]. JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,2021,126(11):28.
APA Wang, Yang,Xu, Zhenhua,Hibiya, Toshiyuki,Yin, Baoshu,&Wang, Fan.(2021).Radiation Path of Diurnal Internal Tides in the Northwestern Pacific Controlled by Refraction and Interference.JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,126(11),28.
MLA Wang, Yang,et al."Radiation Path of Diurnal Internal Tides in the Northwestern Pacific Controlled by Refraction and Interference".JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS 126.11(2021):28.

入库方式： OAI收割

来源：海洋研究所

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