| The effect of Stokes drift on Ekman transport in the open sea |
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| 作者姓名： | BI Fan WU Kejian ZHANG Yuming |
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| 作者单位： | Physical Oceanography Laboratory, Ocean University of China, Qingdao 266100, China;Physical Oceanography Laboratory, Ocean University of China, Qingdao 266100, China;Physical Oceanography Laboratory, Ocean University of China, Qingdao 266100, China |
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| 基金项目： | The National Natural Science Foundation of China under contract Nos 40976005 and 40930844. |
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| 摘 要： | By introducing the wave-induced Coriolis-Stokes forcing into ageostrophic motion equation,the Eulerian transport is modified by the wave-induced Stokes drift.The long-term mean contributions of the Stokes transport with remotely generated swells being included to the ageostrophic transport are analyzed using the ECMWF(European Centre for Medium-Range Weather Forecasts) reanalysis data.The ratio of Stokes transport to Ekman transport in north-south(N-S) direction can reach a maximum of over 50% in the subtropical region.The preliminary influence of the Stokes transport on the North Pacific gyre is all year persistent,while the effect on the North Atlantic gyre is only obvious in boreal winter and early spring.
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| 关 键 词： | 输运 漂移 Stokes方程 海上 再分析资料 ECMWF 亚热带地区 运动方程 |
| 收稿时间： | 2011/4/19 0:00:00 |
| 修稿时间： | 5/3/2012 12:00:00 AM |
The effect of Stokes drift on Ekman transport in the open sea |
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| BI Fan,WU Kejian,ZHANG Yuming.The effect of Stokes drift on Ekman transport in the open sea[J].Acta Oceanologica Sinica,2012,31(6):12-18. |
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| Authors: | BI Fan WU Kejian and ZHANG Yuming |
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| Affiliation: | Physical Oceanography Laboratory, Ocean University of China, Qingdao 266100, China |
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| Abstract: | By introducing the wave-induced Coriolis-Stokes forcing into ageostrophic motion equation, the Eulerian transport is modified by the wave-induced Stokes drift. The long-term mean contributions of the Stokes transport with remotely generated swells being included to the ageostrophic transport are analyzed using the ECMWF (European Centre for Medium-RangeWeather Forecasts) reanalysis data. The ratio of Stokes transport to Ekman transport in north-south (N-S) direction can reach a maximum of over 50% in the subtropical region. The preliminary influence of the Stokes transport on the North Pacific gyre is all year persistent, while the effect on the North Atlantic gyre is only obvious in boreal winter and early spring. |
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| Keywords: | Stokes transport Ekman transport ocean swell ocean gyres |
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