| 表面波浪对海洋上层混合的作用 |
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| 作者姓名： | WANG Zhifeng WU Kejian XIA Changshui ZHANG Xiaoshuang |
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| 作者单位： | College of Engineering, Ocean University of China, Qingdao 266100, China;College of Physical and Environmental Oceanography, Ocean University of China, Qingdao 266100, China;First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China;Key Laboratory of Marine Environmental Information Technology, National Marine Data and Information Service, State Oceanic Administration, Tianjin 300171, China |
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| 基金项目： | The Open Fund of the Shandong Province Key Laboratory of Ocean Engineering, Ocean University of China (Fundamental Research Funds for the Central Universities) under contract No. 201362045; the Open Fund of the Key Laboratory of Digital Ocean, State Oceanic Administration of China under contract No. KLDO201406. |
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| 摘 要： | A new three-dimensional numerical model is derived through a wave average on the primitive N-S equations, in which both the＂Coriolis-Stokes forcing＂ and the＂Stokes-Vortex force＂ are considered. Three ideal experiments are run using the new model applied to the Princeton ocean model （POM）. Numerical results show that surface waves play an important role on the mixing of the upper ocean. The mixed layer is enhanced when wave effect is considered in conjunction with small Langmuir numbers. Both surface wave breaking and Stokes production can strengthen the turbulent mixing near the surface. However, the influence of wave breaking is limited to a thin layer, but Stokes drift can affect the whole mixed layer. Furthermore, the vertical mixing coefficients clearly rise in the mixed layer, and the upper ocean mixed layer is deepened especially in the Antarctic Circumpolar Current when the model is applied to global simulations. It indicates that the surface gravity waves are indispensable in enhancing the mixing in the upper ocean, and should be accounted for in ocean general circulation models.
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| 关 键 词： | 普林斯顿海洋模式 海洋混合层 上层 面波 三维数字模型 波浪破碎 NS方程 科里奥利 |
| 收稿时间： | 2013/3/28 0:00:00 |
| 修稿时间： | 6/9/2013 12:00:00 AM |
The impact of surface waves on the mixing of the upper ocean |
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| WANG Zhifeng,WU Kejian,XIA Changshui,ZHANG Xiaoshuang.The impact of surface waves on the mixing of the upper ocean[J].Acta Oceanologica Sinica,2014,33(9):32-39. |
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| Authors: | WANG Zhifeng WU Kejian XIA Changshui and ZHANG Xiaoshuang |
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| Institution: | 1.College of Engineering, Ocean University of China, Qingdao 266100, China2.College of Physical and Environmental Oceanography, Ocean University of China, Qingdao 266100, China3.First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China4.Key Laboratory of Marine Environmental Information Technology, National Marine Data and Information Service, State Oceanic Administration, Tianjin 300171, China |
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| Abstract: | A new three-dimensional numerical model is derived through a wave average on the primitive N-S equations, in which both the "Coriolis-Stokes forcing" and the "Stokes-Vortex force" are considered. Three ideal experiments are run using the new model applied to the Princeton ocean model (POM). Numerical results show that surface waves play an important role on the mixing of the upper ocean. The mixed layer is enhanced when wave effect is considered in conjunction with small Langmuir numbers. Both surface wave breaking and Stokes production can strengthen the turbulent mixing near the surface. However, the influence of wave breaking is limited to a thin layer, but Stokes drift can affect the whole mixed layer. Furthermore, the vertical mixing coefficients clearly rise in the mixed layer, and the upper ocean mixed layer is deepened especially in the Antarctic Circumpolar Current when the model is applied to global simulations. It indicates that the surface gravity waves are indispensable in enhancing the mixing in the upper ocean, and should be accounted for in ocean general circulation models. |
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| Keywords: | surface waves Stokes drift Langmuir turbulence mixing |
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