Modal structure and propagation of internal tides in the northeastern South China Sea
文献类型：期刊论文
| 作者 | Liu, Qian1; Xie, Xiaohui2; Shang, Xiaodong1; Chen, Guiying1; Wang, Hong; xdshang@scsio.ac.cn |
| 刊名 | ACTA OCEANOLOGICA SINICA
 |
| 出版日期 | 2019 |
| 卷号 | 38期号:9页码:12 |
| 关键词 | South China Sea internal tides propagation scattering modal structure |
| DOI | 10.1007/s13131-019-1473-1 |
| 英文摘要 | The evolution of energy, energy flux and modal structure of the internal tides (ITs) in the northeastern South China Sea is examined using the measurements at two moorings along a cross-slope section from the deep continental slope to the shallow continental shelf. The energy of both diurnal and semidiurnal ITs clearly shows a similar to 14-day spring-neap cycle, but their phases lag that of barotropic tides, indicating that ITs are not generated on the continental slope. Observations of internal tidal energy flux suggest that they may be generated at the Luzon Strait and propagate west-northwest to the continental slope in the northwestern SCS. Because the continental slope is critical-supercritical with respect to diurnal ITs, about 4.6 kJ/m(2) of the incident energy and 8.7 kW/m of energy flux of diurnal ITs are reduced from the continental slope to the continental shelf. In contrast, the semidiurnal internal tides enter the shelf because of the sub-critical topography with respect to semidiurnal ITs. From the continental slope to the shelf, the vertical structure of diurnal ITs shows significant variation, with dominant Mode 1 on the deep slope and dominant higher modes on the shelf. On the contrary, the vertical structure of the semidiurnal ITs is stable, with dominant Mode 1. |
| 资助机构 | State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences [LTO1915]; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [41630970, 41876016, 41676022, 41521005]; Instrument Developing Project of the CAS [YZ201432] ; State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences [LTO1915]; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [41630970, 41876016, 41676022, 41521005]; Instrument Developing Project of the CAS [YZ201432] |
| 源URL | [http://ir.scsio.ac.cn/handle/344004/18227]  |
| 专题 | 南海海洋研究所_热带海洋环境国家重点实验室(LTO) |
| 作者单位 | 1.Minist Nat Resources, Inst Oceanog 2, State Key Lab Satellite Ocean Environm Dynam, Hangzhou 310012, Zhejiang, Peoples R China 2.Jiangsu Univ Sci & Technol, Sch Naval Architecture & Ocean Engn, Zhenjiang 212003, Jiangsu, Peoples R China 3.Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou 510301, Guangdong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Qian,Xie, Xiaohui,Shang, Xiaodong,et al. Modal structure and propagation of internal tides in the northeastern South China Sea[J]. ACTA OCEANOLOGICA SINICA,2019,38(9):12, 23. |
| APA | Liu, Qian,Xie, Xiaohui,Shang, Xiaodong,Chen, Guiying,Wang, Hong,&xdshang@scsio.ac.cn.(2019).Modal structure and propagation of internal tides in the northeastern South China Sea.ACTA OCEANOLOGICA SINICA,38(9),12. |
| MLA | Liu, Qian,et al."Modal structure and propagation of internal tides in the northeastern South China Sea".ACTA OCEANOLOGICA SINICA 38.9(2019):12. |
入库方式： OAI收割
来源：南海海洋研究所
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