Vertical Structure and Seasonal Variability of Shear on the Southwestern Continental Slope of the East China Sea
文献类型：期刊论文
| 作者 | Ouyang, Zhiling2,3,4; Liu, Ze1,2,4; Hou, Yijun1,2,3,4 |
| 刊名 | JOURNAL OF MARINE SCIENCE AND ENGINEERING
 |
| 出版日期 | 2022-07-01 |
| 卷号 | 10期号:7页码:24 |
| 关键词 | ocean shear seasonal variability internal tides near-inertial waves Kuroshio East China Sea |
| DOI | 10.3390/jmse10070902 |
| 通讯作者 | Hou, Yijun(yjhou@qdio.ac.cn) |
| 英文摘要 | The vertical structure and seasonal variability of shear were examined using nearly three years of mooring ADCP (acoustic Doppler current profiler) data on the southwestern continental slope of the East China Sea (ECS). Shear spectra suggest that the sub-inertial currents (SICs); near-inertial waves (NIWs); and diurnal (D1), semidiurnal (D2), and tridiurnal (D3) internal tides (ITs) dominate the local shear field. The shear exhibits a remarkable surface-intensified pattern with high values occurring mostly in the upper 200 m. Significant seasonal variations can be found in the shear, but with differences between the upper (50-200 m averaged) and lower layers (210-570 m averaged). Satellite altimeter data indicate that the meander of the Kuroshio mainstream and the Kuroshio intrusion affect the seasonal variation of total shear by mainly influencing the shear caused by SICs. In addition, the shear efficiency (SE) of D2 ITs is obviously less than that of NIWs and that of D1 and D3 ITs via analyzing the kinetic energy (KE) densities and shear caused by these motions, since the predominant mode of the former is the first baroclinic mode, while the latter is dominated by higher baroclinic modes with large vertical wavenumbers. Moreover, the SE of incoherent ITs is relatively stronger than that of coherent ITs as a result of a larger proportion of high baroclinic modes in the incoherent component compared to the coherent component, based on modal decomposition. |
| 资助项目 | National Natural Science Foundation of China[42076002] ; National Natural Science Foundation of China[41776020] ; National Natural Science Foundation of China[41630967] |
| WOS研究方向 | Engineering ; Oceanography |
| 语种 | 英语 |
| WOS记录号 | WOS:000833608300001 |
| 出版者 | MDPI |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/179832]  |
| 专题 | 海洋研究所_海洋环流与波动重点实验室 |
| 通讯作者 | Hou, Yijun |
| 作者单位 | 1.Qingdao Natl Lab Marine Sci & Technol, Lab Ocean & Climate Dynam, Qingdao 266237, Peoples R China 2.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao 266071, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao 266071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ouyang, Zhiling,Liu, Ze,Hou, Yijun. Vertical Structure and Seasonal Variability of Shear on the Southwestern Continental Slope of the East China Sea[J]. JOURNAL OF MARINE SCIENCE AND ENGINEERING,2022,10(7):24. |
| APA | Ouyang, Zhiling,Liu, Ze,&Hou, Yijun.(2022).Vertical Structure and Seasonal Variability of Shear on the Southwestern Continental Slope of the East China Sea.JOURNAL OF MARINE SCIENCE AND ENGINEERING,10(7),24. |
| MLA | Ouyang, Zhiling,et al."Vertical Structure and Seasonal Variability of Shear on the Southwestern Continental Slope of the East China Sea".JOURNAL OF MARINE SCIENCE AND ENGINEERING 10.7(2022):24. |
入库方式： OAI收割
来源：海洋研究所
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