Satellite Observed Multisource Internal Tide Radiation and Interference in the Banda Sea

doi:10.1029/2022JC019383

IOCAS-IR > 海洋环流与波动重点实验室

	Satellite Observed Multisource Internal Tide Radiation and Interference in the Banda Sea
	Zhang, Peiwen1,2,3,4 ; Xu, Zhenhua 1,2,3,4,5; You, Jia1,3,4 ; Hao, Zhanjiu 1,3,4; Yin, Baoshu 1,2,3,4,5; Hou, Yijun 1,2,3,4; Robertson, Robin 6
	2023-09-01
发表期刊	JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
ISSN	2169-9275
卷号	128 期号:9 页码:26
通讯作者	Xu, Zhenhua(xuzhenhua@qdio.ac.cn)
摘要	Both the semidiurnal and diurnal internal tides in the Banda Sea were investigated using multi-satellite altimeter data, through a combination of plane wave analysis technique and two-dimensional band-pass spatial filtering. The west and central Banda Sea are found to be dominated by semidiurnal internal tides, while the diurnal internal tides dominate the east. Multiple internal tidal sources were located at or nearby the Banda Arc, radiating significant internal tides inwards in complex interference patterns in the Banda Sea basin. The semidiurnal sources were situated on the northern and southern sides of the Banda Arc, emanating internal tides in opposite meridional directions. The semidiurnal tidal beams then experienced interference, shaping the heterogeneous energy fields in the west and central Banda Sea. The primary diurnal source was situated over the steep slope in the Aru Basin, with significant energy radiation westward and diffraction in the east Banda Sea. Based on the estimation of 27-year coherent satellite results, the total energy flux of mode-1 internal tides into the Banda Sea is about 4.82 GW, 58% contributed by semidiurnal tides and 42% by diurnal tides. This study represents the first observed mapping of the complex and inhomogeneous mode-1 semidiurnal and diurnal internal tidal energy fields over the entire Banda Sea. Furthermore, this study enables further characterization of tidal mixing properties and improvement of model mixing parameterizations in the Indonesian seas. The Indonesian seas, an internal tide hotspot, have attracted much attention recently. The magnitude and geography of internal tides in this area were mainly by numerical simulations. The lack of sufficient in situ observations hampers further understanding on their energy transfer and dissipation processes, as well as the realistic validation of ocean models. The satellite altimetry is by now a unique technique that can globally map internal tidal energy field, but its applications in marginal seas are very limited. In this work, we used the multi-satellite altimeter data to provide the first observational map of the semidiurnal and diurnal internal tidal radiation in the Banda Sea. Particularly, we revealed an east-west asymmetric internal tidal energy field in the Banda Sea, indicating its complex and inhomogeneous distributed nature. We further explored their multiple physical processes, including the interference, spreading, focusing and diffraction. The map we provided highlights the relatively important but previously overlooked significances of diurnal internal tides in the Indonesian seas. The map can serve as a basin-covered validation for many numerical simulations. Moreover, this method is applicable to other basins of the Indonesian seas, supporting further understanding of their internal tidal energy redistribution and tidal mixing parameterizations in ocean models. Multisource semidiurnal and diurnal internal tidal radiation from the Banda Arc is revealed by multi-satellite altimetryThe M2 multi-wave interference shapes the spatially inhomogeneous energy fields in the west and central Banda SeaAn energetic K1 beam radiates and spreads from the steep slope in the Aru Basin, diffracting westward to the east Banda Sea
关键词	internal tide Banda Sea energy flux
DOI	10.1029/2022JC019383
收录类别	SCI
语种	英语
资助项目	Strategic Priority Research Program of Chinese Academy of Sciences[XDB42000000] ; National Natural Science Foundation of China[92058202] ; National Natural Science Foundation of China[92258301] ; National Natural Science Foundation of China[42306041] ; Scientific and Technological Innovation Project - Laoshan Laboratory[LSKJ202202502] ; China Postdoctoral Science Foundation[2022M723184] ; Shandong Postdoctoral Science Foundation[SDCX-ZG-202203095]
WOS研究方向	Oceanography
WOS类目	Oceanography
WOS记录号	WOS:001068279700001
出版者	AMER GEOPHYSICAL UNION
WOS关键词	SUBTIDAL CIRCULATION ; WAVE GENERATION ; INDONESIAN SEAS ; PROPAGATION ; VARIABILITY ; DEPENDENCE ; ALTIMETER ; IMPACT ; LEVEL
引用统计
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/181793
专题	海洋环流与波动重点实验室
通讯作者	Xu, Zhenhua
作者单位	1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Ocean Circulat & Waves, Qingdao, Peoples R China 2.Pilot Natl Lab Marine Sci & Technol, Qingdao, Peoples R China 3.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China 4.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao, Peoples R China 5.Chinese Acad Sci, CAS Engn Lab Marine Ranching, Inst Oceanol, Qingdao, Peoples R China 6.Xiamen Univ Malaysia, China Asean Coll Marine Sci, Sepang, Malaysia
第一作者单位	中国科学院海洋研究所
通讯作者单位	中国科学院海洋研究所
推荐引用方式 GB/T 7714	Zhang, Peiwen,Xu, Zhenhua,You, Jia,et al. Satellite Observed Multisource Internal Tide Radiation and Interference in the Banda Sea[J]. JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,2023,128(9):26.
APA	Zhang, Peiwen.,Xu, Zhenhua.,You, Jia.,Hao, Zhanjiu.,Yin, Baoshu.,...&Robertson, Robin.(2023).Satellite Observed Multisource Internal Tide Radiation and Interference in the Banda Sea.JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,128(9),26.
MLA	Zhang, Peiwen,et al."Satellite Observed Multisource Internal Tide Radiation and Interference in the Banda Sea".JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS 128.9(2023):26.