Observed internal tides in the deep northwestern Pacific by argo floats

doi:10.1016/j.dsr2.2022.105248

IOCAS-IR > 海洋环流与波动重点实验室

	Observed internal tides in the deep northwestern Pacific by argo floats
	Wang, Yang1,2,3,4 ; Xu, Zhenhua 1,2,3,5,6; Li, Qun 7; Chen, Zhaohui 2,8; You, Jia1,2,3 ; Yin, Baoshu 1,2,3,5,6; Robertson, Robin 9
	2023-02-01
发表期刊	DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY
ISSN	0967-0645
卷号	207 页码:12
通讯作者	Xu, Zhenhua(xuzhenhua@qdio.ac.cn)
摘要	This study aims to extract the observed internal wave signals in the northwestern Pacific from Argo floats with Iridium-telecommunication that can directly measure the hourly temperature, salinity and pressure near 1000 dbar. Vertical displacements and spectral features of internal tides can be interpreted from Argo float data. More than 10,000 parking-phase observations of 252 Argo floats were used to estimate their spatial-temporal characteristics. Vertical displacements attributed to internal tides exceeded 30 dbar near energetic sources, such as the Luzon Strait, Izu ridge, Mariana Arc and Palau. The observed internal tides feature both seasonal and springneap cycles corresponding to barotropic tidal variations. The diurnal and semidiurnal peaks in the energy spectra differed with latitude in related to different internal wave properties. Particularly, energetic local-trapped diurnal internal tides (topographic waves) occurred at 33 degrees N near Izu Ridge, which is poleward of diurnal critical latitude. The internal tidal energy was calculated by theoretical fitting the vertical displacements from one layer to the full-depth water. The observed e-folding decay scales of the semidiurnal internal tidal energy were estimated as similar to 550-950 km in the deep basin. The Argo parking data provide a unique view for observing the basin-scale pattern and energy sink of deep-ocean internal tides, which could supplement the widely-used surface altimetry observations and contribute to a more accurate parameterization of tidal mixing.
关键词	Internal tide Argo Northwestern pacific Tidal dissipation Energy decay Parameterization
DOI	10.1016/j.dsr2.2022.105248
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; Scientific and Technological Innovation Project ; Laoshan Laboratory ; National Key Research and Development Program of China[92058202] ; National Key Research and Development Program of China[42006031] ; National Key Research and Development Program of China[XDB42000000] ; National Key Research and Development Program of China[LSKJ202202502] ; National Key Research and Development Program of China[XDA22050202] ; National Key Research and Development Program of China[COMS2020Q07] ; National Key Research and Development Program of China[2017YFA0604102]
WOS研究方向	Oceanography
WOS类目	Oceanography
WOS记录号	WOS:001029213000001
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS关键词	LONG-RANGE PROPAGATION ; GRAVITY-WAVES ; SPATIAL VARIATIONS ; PART I ; SOUTH ; VARIABILITY ; ENERGY ; GENERATION ; CIRCULATION ; DEPENDENCE
引用统计
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/182659
专题	海洋环流与波动重点实验室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, Peoples R China 2.Pilot Natl Lab Marine Sci & Technol, Qingdao, Peoples R China 3.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao, Peoples R China 4.Minist Nat Resources, Key Lab Marine Sci & Numer Modeling, Qingdao, Peoples R China 5.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China 6.Chinese Acad Sci, Inst Oceanol, CAS Engn Lab Marine Ranching, Qingdao 266071, Peoples R China 7.Polar Res Inst China, Shanghai, Peoples R China 8.Ocean Univ China, Inst Adv Ocean Sci, Frontiers Sci Ctr Deep Ocean Multispheres & Earth, Key Lab Phys Oceanog, Qingdao, Peoples R China 9.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	Wang, Yang,Xu, Zhenhua,Li, Qun,et al. Observed internal tides in the deep northwestern Pacific by argo floats[J]. DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY,2023,207:12.
APA	Wang, Yang.,Xu, Zhenhua.,Li, Qun.,Chen, Zhaohui.,You, Jia.,...&Robertson, Robin.(2023).Observed internal tides in the deep northwestern Pacific by argo floats.DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY,207,12.
MLA	Wang, Yang,et al."Observed internal tides in the deep northwestern Pacific by argo floats".DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY 207(2023):12.