| 南海南部上层的湍流混合特征 |
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| 引用本文： | 尚晓东,戚永锋,陈桂英,梁长荣. 南海南部上层的湍流混合特征[J]. 海洋学报(英文版), 2015, 34(11): 6-13. DOI: 10.1007/s13131-015-0743-3 |
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| 作者姓名： | 尚晓东 戚永锋 陈桂英 梁长荣 |
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| 作者单位： | 中国科学院南海海洋研究所热带海洋环境国家重点实验室, 广州, 510301,中国科学院南海海洋研究所热带海洋环境国家重点实验室, 广州, 510301;中国科学院大学, 北京, 10049,中国科学院南海海洋研究所热带海洋环境国家重点实验室, 广州, 510301,中国科学院南海海洋研究所热带海洋环境国家重点实验室, 广州, 510301;中国科学院大学, 北京, 10049 |
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| 基金项目： | The “CAS/SAFEA International Partnership Program for Creative Research Teams” of Chinese Academy of Seiences under contract Nos XDA11010202, 2013CB430303 and 41376022, 41276021 and 41276023. |
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| 摘 要： | A turbulent microstructure experiment was undertaken at a low latitude of 10°N in the South China Sea in late August 2012. The characteristics of the eddy diffusivity above 650 m were analyzed, which is one order of magnitude larger than that in the open ocean at that low latitude. Enhanced eddy diffusivities by strong shears and sharp changes in topography were observed. The strongest eddy diffusivity occurred in the mixed layer, and it reached O(10–2 m2/s). Strong stratification in the thermocline inhibited the penetration of surface eddy diffusivities through the thermocline, where the mixing was weakest. Below the thermocline, where the background eddy diffusivity was approximately O(10–6 m2/s), the eddy diffusivity increased with depth, and its largest value was O(10–3 m2/s).
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| 关 键 词： | 南海南部 湍流混合 湍动能耗散率 地形 |
| 收稿时间： | 2015-03-19 |
| 修稿时间： | 2015-06-02 |
Observations of upper layer turbulent mixing in the southern South China Sea |
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| SHANG Xiaodong,QI Yongfeng,CHEN Guiying and LIANG Changrong. Observations of upper layer turbulent mixing in the southern South China Sea[J]. Acta Oceanologica Sinica, 2015, 34(11): 6-13. DOI: 10.1007/s13131-015-0743-3 |
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| Authors: | SHANG Xiaodong QI Yongfeng CHEN Guiying LIANG Changrong |
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| Affiliation: | 1.State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China2.State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China;University of Chinese Academy of Sciences, Beijing 100049, China |
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| Abstract: | A turbulent microstructure experiment was undertaken at a low latitude of 10°N in the South China Sea in late August 2012. The characteristics of the eddy diffusivity above 650 m were analyzed, which is one order of magnitude larger than that in the open ocean at that low latitude. Enhanced eddy diffusivities by strong shears and sharp changes in topography were observed. The strongest eddy diffusivity occurred in the mixed layer, and it reached O(10-2 m2/s). Strong stratification in the thermocline inhibited the penetration of surface eddy diffusivities through the thermocline, where the mixing was weakest. Below the thermocline, where the background eddy diffusivity was approximately O(10-6 m2/s), the eddy diffusivity increased with depth, and its largest value was O(10-3 m2/s). |
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| Keywords: | southern South China Sea turbulent mixing dissipation rate topography |
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