Mooring Observed Seasonal Variability of Internal Tides Radiated From Mariana Arc
文献类型：期刊论文
| 作者 | You, Jia1,2; Xu, Zhenhua1,2,3,4; Zhang, Peiwen1,2,3; Wang, Fan1,2,3,4 |
| 刊名 | JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
 |
| 出版日期 | 2025-12-09 |
| 卷号 | 130期号:12页码:18 |
| 关键词 | Northwestern Pacific equatorial current mooring measurement internal tide mesoscale eddy |
| ISSN号 | 2169-9275 |
| DOI | 10.1029/2025JC022736 |
| 通讯作者 | Xu, Zhenhua(xuzhenhua@qdio.ac.cn) ; Wang, Fan(fwang@qdio.ac.cn) |
| 英文摘要 | Seasonal variability of the magnitude and structure of semidiurnal internal tides radiated from the Mariana Arc was examined based on year-long mooring observations. Internal tidal currents, energy density, and energy flux at the focal point of the Mariana Arc were weakest in summer, but typically comparable in the other three seasons. Mode-1 internal tides dominate over the observed period, except in summer when Mode-2 explains a higher proportion. The coherent variance accounts for about 60% of the total semidiurnal motions, with a reduced proportion in summer and winter, generally consistent with the seasonal trend of the barotropic tides. In contrast, the incoherent internal tides show a close temporal consistency with the low-frequency flows. During summer, the background currents are predominantly influenced by energetic mesoscale eddies, whereas the North Equatorial Current (NEC) system dominates in the other seasons. Internal tides influenced by eddies exhibit more standing wave characteristics, higher modal structures, and more incoherent properties compared to those modulated by the NEC. Internal tides are more progressive and propagate outward more easily when modulated by the NEC, whereas those modulated by eddies are more unstable and prone to nearby dissipation, resulting in a significant summer weakening at the Mariana Arc focus. |
| WOS关键词 | DEEP BASIN WEST ; INTERANNUAL VARIABILITY ; WAVE PROPAGATION ; GLOBAL PATTERNS ; ENERGY FLUXES ; PART II ; SEA ; CURRENTS ; OCEAN |
| 资助项目 | Shandong Provincial Natural Science Foundation[ZR2023QD107] ; Shandong Provincial Natural Science Foundation[ZR2024QD105] ; Laoshan Laboratory[LSKJ202202502] ; National Natural Science Foundation of China[92058202] ; National Natural Science Foundation of China[42406011] ; National Natural Science Foundation of China[42306041] ; National Natural Science Foundation of China[42576023] ; National Natural Science Foundation of China[92258301] ; China Postdoctoral Science Foundation[2023M743528] ; Postdoctoral Fellowship Program of CPSF[GZC20232711] |
| WOS研究方向 | Oceanography |
| 语种 | 英语 |
| WOS记录号 | WOS:001633010500001 |
| 出版者 | AMER GEOPHYSICAL UNION |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/204514]  |
| 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; Wang, Fan |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Observat & Forecasting, Qingdao, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Lab Ocean Circulat & Waves, Qingdao, Peoples R China 3.Qingdao Marine Sci & Technol Ctr, Lab Ocean Dynam & Climate, Qingdao, Peoples R China 4.Univ Chinese Acad Sci, Coll Marine Sci, Qingdao, Peoples R China |
| 推荐引用方式 GB/T 7714 | You, Jia,Xu, Zhenhua,Zhang, Peiwen,et al. Mooring Observed Seasonal Variability of Internal Tides Radiated From Mariana Arc[J]. JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,2025,130(12):18. |
| APA | You, Jia,Xu, Zhenhua,Zhang, Peiwen,&Wang, Fan.(2025).Mooring Observed Seasonal Variability of Internal Tides Radiated From Mariana Arc.JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,130(12),18. |
| MLA | You, Jia,et al."Mooring Observed Seasonal Variability of Internal Tides Radiated From Mariana Arc".JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS 130.12(2025):18. |
入库方式： OAI收割
来源：海洋研究所
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