Satellite Investigation of Semidiurnal Internal Tides in the Sulu-Sulawesi Seas

doi:10.3390/rs13132530

	Satellite Investigation of Semidiurnal Internal Tides in the Sulu-Sulawesi Seas
	Zhao, Xiaoyu1,2 ; Xu, Zhenhua 1,3,4,5; Feng, Ming 6; Li, Qun 7; Zhang, Peiwen1,2,4 ; You, Jia1,2,4 ; Gao, Song 8; Yin, Baoshu 1,2,3,4,5
	2021-07-01
发表期刊	REMOTE SENSING
卷号	13 期号:13 页码:20
通讯作者	Xu, Zhenhua([email protected])
摘要	The mode-1 semidiurnal internal tides that emanate from multiple sources in the Sulu-Sulawesi Seas are investigated using multi-satellite altimeter data from 1993-2020. A practical plane-wave analysis method is used to separately extract multiple coherent internal tides, with the nontidal noise in the internal tide field further removed by a two-dimensional (2-D) spatial band-pass filter. The complex radiation pathways and interference patterns of the internal tides are revealed, showing a spatial contrast between the Sulu Sea and the Sulawesi Sea. The mode-1 semidiurnal internal tides in the Sulawesi Sea are effectively generated from both the Sulu and Sangihe Island chains, forming a spatially inhomogeneous interference pattern in the deep basin. A cylindrical internal tidal wave pattern from the Sibutu passage is confirmed for the first time, which modulates the interference pattern. The interference field can be reproduced by a line source model. A weak reflected internal tidal beam off the Sulawesi slope is revealed. In contrast, the Sulu Island chain is the sole energetic internal tide source in the Sulu Sea, thus featuring a relatively consistent wave and energy flux field in the basin. These energetic semidiurnal internal tidal beams contribute to the frequent occurrence of internal solitary waves (ISWs) in the study area. On the basis of the 28-year consistent satellite measurements, the northward semidiurnal tidal energy flux from the Sulu Island chain is 0.46 GW, about 25% of the southward energy flux. For M-2, the altimetric estimated energy fluxes from the Sulu Island chain are about 80% of those from numerical simulations. The total semidiurnal tidal energy flux from the Sulu and Sangihe Island chains into the Sulawesi Sea is about 2.7 GW.
关键词	semidiurnal internal tides the Sulu-Sulawesi Seas sea surface height plane wave fit method energy flux
DOI	10.3390/rs13132530
收录类别	SCI
语种	英语
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[92058202]; National Key Research and Development Program of China[91858103]; National Key Research and Development Program of China[2017YFA0604102]; National Key Research and Development Program of China[2016YFC1401404]; CAS Key Research Program of Frontier Sciences; Key Deployment Project of Centre for Ocean Mega-Research of Science; CAS[QYZDB-SSW-DQC024]; CAS[COMS2020Q07]; CAS[133244KYSB20190031]; CSIRO[QYZDB-SSW-DQC024]; CSIRO[COMS2020Q07]; CSIRO[133244KYSB20190031]
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Remote Sensing ; Imaging Science & Photographic Technology
WOS记录号	WOS:000670957800001
出版者	MDPI
引用统计	被引频次：9[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/177003
专题	海洋生态与环境科学重点实验室
通讯作者	Xu, Zhenhua
作者单位	1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Ocean Circulat & Waves, Qingdao 266071, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Pilot Natl Lab Marine Sci & Technol, Qingdao 266237, Peoples R China 4.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao 266071, Peoples R China 5.Chinese Acad Sci, Inst Oceanol, CAS Engn Lab Marine Ranching, Qingdao 266071, Peoples R China 6.CSIRO Oceans & Atmosphere, Indian Ocean Marine Res Ctr, Crawley, WA 6009, Australia 7.Polar Res Inst China, Shanghai 200136, Peoples R China 8.State Ocean Adm, North China Sea Marine Forecasting Ctr, Qingdao 266061, Peoples R China
推荐引用方式 GB/T 7714	Zhao, Xiaoyu,Xu, Zhenhua,Feng, Ming,et al. Satellite Investigation of Semidiurnal Internal Tides in the Sulu-Sulawesi Seas[J]. REMOTE SENSING,2021,13(13):20.
APA	Zhao, Xiaoyu.,Xu, Zhenhua.,Feng, Ming.,Li, Qun.,Zhang, Peiwen.,...&Yin, Baoshu.(2021).Satellite Investigation of Semidiurnal Internal Tides in the Sulu-Sulawesi Seas.REMOTE SENSING,13(13),20.
MLA	Zhao, Xiaoyu,et al."Satellite Investigation of Semidiurnal Internal Tides in the Sulu-Sulawesi Seas".REMOTE SENSING 13.13(2021):20.

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