M-2 Internal Tide Energetics and Behaviors in the Subpolar North Pacific

doi:10.1175/JPO-D-22-0032.1

IOCAS-IR > 海洋环流与波动重点实验室

	M-2 Internal Tide Energetics and Behaviors in the Subpolar North Pacific
	You, Jia1,2,3,4 ; Xu, Zhenhua 1,2,3,4,5; Li, Oun 6; Zhang, Peiwen1,2,3,4 ; Yin, Baoshu 1,2,3,4,5; Hou, Yijun 1,2,3,4,5
	2023-05-01
发表期刊	JOURNAL OF PHYSICAL OCEANOGRAPHY
ISSN	0022-3670
卷号	53 期号:5 页码:1269-1290
通讯作者	Xu, Zhenhua(xuzhenhua@qdio.ac.cn)
摘要	Energetic internal tides in the Pacific Ocean generated from multiple sources are the subject of many stud-ies, although the subpolar North Pacific (SNP) is known as a high-latitude hotspot that remains less explored. The present study is the first detailed investigation on M2 internal tide energetics and dynamics in the SNP by high-resolution numerical simulations. The M2 internal tides in the SNP mainly originate from the Aleutian Ridge (area-integrated 5.51 GW and av-eraged ;10-3 W m-2 of barotropic-to-baroclinic conversion rate), wherein the Amukta Pass is the most significant source. The Amukta Pass radiates northward 0.55 GW (averaged 2.3 kW m-1) to the Bering Sea and southward 1.40 GW (aver-aged 3.7 kW m-1) to the North Pacific. The subsequent south-north asymmetric radiation pattern is consistent with satel-lite altimeter detection. In the Bering basin, multiwave superposition in the near field between the Amukta Pass and adjacent sources generates two standing wave patterns. After approaching the Bering Sea slope, remote internal tides from Aleutian Ridge enhance local generation and dissipation. The dissipation field is relatively similar to the generation map, which is explained by the higher local dissipation efficiency q (>1/2) and the faster energy attenuation than in the midlati-tudes. The simulated dissipation rates compare favorably with the estimate from fine-scale parameterization, indicating the dominance of internal tidal mixing. The averaged dissipation rate in SNP is O(10-10) W kg-1, and the depth-integrated dis-sipation rates reach O(10-1) W m-2 near the Amukta Pass. It is important to understand the unique physics and dissipative process of high-latitude internal tides to fully characterize the redistribution of global tidal energy and associated mixing.
关键词	Internal waves Ocean dynamics Tides North Paci fi c Ocean Ocean models
DOI	10.1175/JPO-D-22-0032.1
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[92058202] ; National Key Research and Development Program of China[XDB42000000] ; National Key Research and Development Program of China[92258301] ; National Key Research and Development Program of China[42176244] ; National Key Research and Development Program of China[42006031] ; National Key Research and Development Program of China[XDA22050202] ; High Performance Computing Center at the IOCAS
WOS研究方向	Oceanography
WOS类目	Oceanography
WOS记录号	WOS:000990829900001
出版者	AMER METEOROLOGICAL SOC
WOS关键词	BAROCLINIC TIDES ; ENERGY FLUXES ; BERING-SEA ; OCEAN CIRCULATION ; MODEL ; DISSIPATION ; GENERATION ; RIDGE ; PROPAGATION ; CONVERSION
引用统计	被引频次：2[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/337002/183000
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.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao, Peoples R China 4.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China 5.Chinese Acad Sci, Inst Oceanol, CAS Engn Lab Marine Ranching, Qingdao, Peoples R China 6.Polar Res Inst China, MNR Key Lab Polar Sci, Shanghai, Peoples R China
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	You, Jia,Xu, Zhenhua,Li, Oun,et al. M-2 Internal Tide Energetics and Behaviors in the Subpolar North Pacific[J]. JOURNAL OF PHYSICAL OCEANOGRAPHY,2023,53(5):1269-1290.
APA	You, Jia,Xu, Zhenhua,Li, Oun,Zhang, Peiwen,Yin, Baoshu,&Hou, Yijun.(2023).M-2 Internal Tide Energetics and Behaviors in the Subpolar North Pacific.JOURNAL OF PHYSICAL OCEANOGRAPHY,53(5),1269-1290.
MLA	You, Jia,et al."M-2 Internal Tide Energetics and Behaviors in the Subpolar North Pacific".JOURNAL OF PHYSICAL OCEANOGRAPHY 53.5(2023):1269-1290.