Three dimensional simulation of internal wave attractors in the Luzon Strait

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• 作者：Gang Wang ; Quanan Zheng ; Min Lin ; Dejun Dai ; Fangli Qiao
• 关键词：Internal wave attractor ; non ; hydrostatic ; wave beam ; Luzon Strait
• 刊名：Acta Oceanologica Sinica
• 出版年：2015
• 出版时间：November 2015
• 年：2015
• 卷：34
• 期：11
• 页码：14-21
• 全文大小：2,535 KB
• 参考文献：Amante C, Eakins B W. 2009. ETOPO1 1 arc-minute global relief model: procedures, data sources and analysis. NAOO Technical Memorandum NESDIS NGDC-24. National Geophysical Data Center, NOAA
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• 作者单位：Gang Wang (1) (2)
  Quanan Zheng (3)
  Min Lin (4)
  Dejun Dai (1) (2)
  Fangli Qiao (1)
  
  1. Key Laboratory of Marine Science and Numerical Modeling (MASNUM), the First Institute of Oceanography, State Oceanic Administration, Qingdao, 266061, China
  2. Key Laboratory of Data Analysis and Applications, the First Institute of Oceanography, State Oceanic Administration, Qingdao, 266061, China
  3. Department of Atmospheric and Oceanic Science, University of Maryland, College Park, Maryland, 20742, USA
  4. Department of Mathematics, Ocean University of China, Qingdao, 266100, China
  
• 刊物主题：Oceanography; Climatology; Ecology; Engineering Fluid Dynamics; Marine & Freshwater Sciences; Environmental Chemistry;
• 出版者：Springer Berlin Heidelberg
• ISSN：1869-1099

文摘

Internal waves propagate along wave beams that are inclined with respect to the horizontal plane. It is conjectured that the internal waves generated in the Luzon Strait may be confined between the double ridges in the strait and concentrate to a closed trajectory, the so-called internal wave attractor, due to the reflection of wave beams from the lateral boundaries, sea surface and bottom. This work carried out two experiments using a three dimensional non-hydrostatic general circulation model, MITgcm, to investigate the possibility that the ridges in the Luzon Strait allows for internal wave attractors. Baroclinic current in both of the experiments demonstrate the forming of ring-like patterns in some section around 20° and 21°N, indicating that the development of the internal wave attractors are allowed in the Luzon Strait. The different resolutions and initial conditions in the two experiments also reveal that the internal-wave-attractor phenomenon is robust in this region. Keywords Internal wave attractor non-hydrostatic wave beam Luzon Strait