中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 海洋研究所
  3. 中国科学院海洋研究所
Observations of near-inertial internal wave amplification and enhanced mixing after surface reflection

文献类型：期刊论文

作者Liu, Kun9; Chen, Xu1,5; Zhan, Peng7; Da, Lianglong5; Wang, Hui6,8,9; Guo, Wuhong5; Liu, Jingyi5; Chen, Lei2,3,4; Liu, Bing4; Gao, Guandong3,4,5
刊名PROGRESS IN OCEANOGRAPHY
出版日期2024
卷号220页码:15
ISSN号0079-6611
DOI10.1016/j.pocean.2023.103177
通讯作者Chen, Xu(chenxu001@ouc.edu.cn) ; Da, Lianglong(da_lianglong@126.com) ; Wang, Hui(wangh@nmefc.cn)
英文摘要The overreflection process of near-inertial internal waves (NIWs) has been theoretically predicted for several decades; however, to the best of our knowledge, this phenomenon has never been comprehensively investigated in real ocean scenarios. Based on the buoy observations collected several days after the passage of Typhoon Lekima in the Yellow Sea, a NIW surface overreflection event is clearly captured. The observed NIWs undergo nearly total reflection meridionally but are amplified zonally after reflection by approximately 20% in amplitude and 56% in vertically integrated horizontal kinetic energy. Ray tracing analysis indicates that the NIW was generated in the wake of Typhoon Lekima in the area north of the Shandong Peninsula and may propagated to the buoy station as coastal-trapped internal Kelvin waves. A simulation using a slab mixed layer model suggests that local wind work was insufficient to generate the amplified NIWs. The temporal evolution of near-inertial energy also implies that the intensified near-inertial waves cannot be attributed to the spontaneous generation resulting from unbalanced flows or the parametric subharmonic instability of M2 internal tides during the reflection period. We found a high temporal correlation between the zonal NIW enhancement and the duration of a meridional lens-type shear flow after reflection, which is consistent with the Stern's overreflection theory (Stern, 1977) that perpendicular background shear flow can feed energy to the incident NIWs. This indicates that the enhanced NIW may be stimulated by the near-surface reflection and the rotation effect plays a crucial role in the NIWs overreflection process in the real ocean. Furthermore, enhanced instability are found between the ocean surface and the upper thermocline after reflection. This study provides observational evidence that the background field could inject energy into the near-inertial band through NIW overreflection process, and may shed some light on understanding upper ocean mixing caused by NIW reflection.
WOS关键词PARAMETRIC SUBHARMONIC INSTABILITY ; GRAVITY-WAVES ; OVER-REFLECTION ; SHEAR ; ENERGY ; OCEAN ; PROPAGATION ; SEA ; GENERATION ; WIND
资助项目National Natural Science Foundation of China[41906005] ; National Basic Research Program of China[2019-JCJQ-ZD-149-00] ; Innovation Special Zone Project ; Laboratory for Regional Oceanography and Numerical Modeling, Qingdao National Laboratory for Marine Science and Technology ; [18-H863-05-ZT-001-012-06] ; [2019A05]
WOS研究方向Oceanography
语种英语
WOS记录号WOS:001134879000001
出版者PERGAMON-ELSEVIER SCIENCE LTD
源URL[http://ir.qdio.ac.cn/handle/337002/199629]  
专题中国科学院海洋研究所
通讯作者Chen, Xu; Da, Lianglong; Wang, Hui
作者单位1.Ocean Univ China, Key Lab Phys Oceanog, Qingdao, Peoples R China
2.China Univ Petr, Coll Oceanog & Space Informat, Qingdao, Peoples R China
3.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao, Peoples R China
4.Chinese Acad Sci, Inst Oceanol, Qingdao, Peoples R China
5.Qingdao Marine Sci & Technol Ctr, Qingdao, Peoples R China
6.Natl Marine Environm Forecasting Ctr, Beijing, Peoples R China
7.Southern Univ Sci & Technol, Dept Ocean Sci & Engn, Shenzhen, Peoples R China
8.Southern Marine Sci & Engn Guangdong Lab Zhuhai, Zhuhai, Peoples R China
9.Shandong Univ, Inst Marine Sci & Technol, Qingdao, Peoples R China
推荐引用方式
GB/T 7714		 Liu, Kun,Chen, Xu,Zhan, Peng,et al. Observations of near-inertial internal wave amplification and enhanced mixing after surface reflection[J]. PROGRESS IN OCEANOGRAPHY,2024,220:15.
APA Liu, Kun.,Chen, Xu.,Zhan, Peng.,Da, Lianglong.,Wang, Hui.,...&Tian, Deyan.(2024).Observations of near-inertial internal wave amplification and enhanced mixing after surface reflection.PROGRESS IN OCEANOGRAPHY,220,15.
MLA Liu, Kun,et al."Observations of near-inertial internal wave amplification and enhanced mixing after surface reflection".PROGRESS IN OCEANOGRAPHY 220(2024):15.

入库方式： OAI收割

来源：海洋研究所

浏览0
下载0
收藏0
其他版本

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。