M-2 Internal Tide Energetics and Behaviors in the Subpolar North Pacific | |
You, Jia3,4,5,6; Xu, Zhenhua2,3,4,5,6; Li, Oun1; Zhang, Peiwen3,4,5,6; Yin, Baoshu2,3,4,5,6; Hou, Yijun2,3,4,5,6 | |
刊名 | JOURNAL OF PHYSICAL OCEANOGRAPHY |
2023-05-01 | |
卷号 | 53期号:5页码:1269-1290 |
关键词 | Internal waves Ocean dynamics Tides North Paci fi c Ocean Ocean models |
ISSN号 | 0022-3670 |
DOI | 10.1175/JPO-D-22-0032.1 |
通讯作者 | Xu, Zhenhua(xuzhenhua@qdio.ac.cn) |
英文摘要 | 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. |
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关键词 | BAROCLINIC TIDES ; ENERGY FLUXES ; BERING-SEA ; OCEAN CIRCULATION ; MODEL ; DISSIPATION ; GENERATION ; RIDGE ; PROPAGATION ; CONVERSION |
WOS研究方向 | Oceanography |
语种 | 英语 |
出版者 | AMER METEOROLOGICAL SOC |
WOS记录号 | WOS:000990829900001 |
内容类型 | 期刊论文 |
源URL | [http://ir.qdio.ac.cn/handle/337002/182999] |
专题 | 海洋研究所_海洋环流与波动重点实验室 |
通讯作者 | Xu, Zhenhua |
作者单位 | 1.Polar Res Inst China, MNR Key Lab Polar Sci, Shanghai, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, CAS Engn Lab Marine Ranching, 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.Pilot Natl Lab Marine Sci & Technol, Qingdao, Peoples R China 6.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Ocean Circulat & Waves, Qingdao, Peoples R China |
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. |
个性服务 |
查看访问统计 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论