The Generation of Nonlinear Internal Waves in the South China Sea: A Three-Dimensional, Nonhydrostatic Numerical Study
文献类型：期刊论文
| 作者 | Lai, Zhigang1; Jin, Guangzhen1; Huang, Yongmao; Chen, Haiyun; Shang, Xiaodong2; Xiong, Xuejun3; laizhig@mail.sysu.edu.cn; xdshang@scsio.ac.cn; xiongxj@fio.org.cn |
| 刊名 | JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
 |
| 出版日期 | 2019 |
| 卷号 | 124期号:12页码:8949 |
| 关键词 | Nonlinear internal waves Generation mechanism Double-ridge system Resonance Nonhydrostatic simulation Luzon Strait |
| DOI | 10.1029/2019JC015283 |
| 英文摘要 | The generation of nonlinear internal waves (NLIWs) by stratified tidal flow over an isolated topography has been a subject of research for many years. However, the enhanced complexity of the dynamics as a consequence of flow over two topographical features has been less studied and understood. Here, we report results of the generation of type-A and type-B NLIWs in the South China Sea that originate from a double-ridge system. Based on a realistic three-dimensional nonhydrostatic simulation, it is found that type-A NLIWs are generated at the western ridge through the mechanism of internal tide release, while the generation of type-B NLIWs occurs at the eastern ridge as a consequence of internal wave interaction. Associated with the ridge height, separation distance, and modulated tidal forcing, the generation of type-B NLIWs is strongly modified by the resonant process between the two ridges. As a result, type-A and type-B NLIWs appear in the observations with alternating large and small amplitudes. In addition, with a detailed knowledge of the generation, it is also found that the different arrival time of these waves could be due to their different generation times. Finally, the reflection/transmission of type-B NLIWs at the subcritical western ridge is suggested as a key feature of resonance. However, it is governed by hydraulically controlled flow instead of the ratio of the local topographic slope to the internal wave beam angle. |
| 资助机构 | National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [41630970, 41521005, 41976004]; National Science and Technology Major Project [2016ZX05057015]; Ocean Engineering and Equipment Project-Independent Research and Development on Oilfield Production Equipment TLP under 500 meters; Three Big ConstructionsSupercomputing Application Cultivation Projects; Fundamental Research Funds for the Central UniversitiesFundamental Research Funds for the Central Universities [20184200031610059]; Natural Science Foundation of Guangdong ProvinceNational Natural Science Foundation of Guangdong Province [2019A1515011487] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [41630970, 41521005, 41976004]; National Science and Technology Major Project [2016ZX05057015]; Ocean Engineering and Equipment Project-Independent Research and Development on Oilfield Production Equipment TLP under 500 meters; Three Big ConstructionsSupercomputing Application Cultivation Projects; Fundamental Research Funds for the Central UniversitiesFundamental Research Funds for the Central Universities [20184200031610059]; Natural Science Foundation of Guangdong ProvinceNational Natural Science Foundation of Guangdong Province [2019A1515011487] |
| 源URL | [http://ir.scsio.ac.cn/handle/344004/18182]  |
| 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.Sun Yat Sen Univ, Sch Marine Sci, Key Lab Marine Resources & Coastal Engn Guangdong, Guangzhou, Guangdong, Peoples R China 2.Southern Marine Sci & Engn Guangdong Lab, Zhuhai, Peoples R China 3.Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou, Guangdong, Peoples R China 4.State Ocean Adm, Key Lab Marine Sci & Numer Modeling, Inst Oceanog 1, Qingdao, Shandong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lai, Zhigang,Jin, Guangzhen,Huang, Yongmao,et al. The Generation of Nonlinear Internal Waves in the South China Sea: A Three-Dimensional, Nonhydrostatic Numerical Study[J]. JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,2019,124(12):8949, 8968. |
| APA | Lai, Zhigang.,Jin, Guangzhen.,Huang, Yongmao.,Chen, Haiyun.,Shang, Xiaodong.,...&xiongxj@fio.org.cn.(2019).The Generation of Nonlinear Internal Waves in the South China Sea: A Three-Dimensional, Nonhydrostatic Numerical Study.JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,124(12),8949. |
| MLA | Lai, Zhigang,et al."The Generation of Nonlinear Internal Waves in the South China Sea: A Three-Dimensional, Nonhydrostatic Numerical Study".JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS 124.12(2019):8949. |
入库方式： OAI收割
来源：南海海洋研究所
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