| 南海北部陆坡区内孤立波的垂向热量输送 |
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| 引用本文： | 梁长荣,尚晓东,陈桂英.南海北部陆坡区内孤立波的垂向热量输送[J].海洋学报(英文版),2019,38(3):36-44. |
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| 作者姓名： | 梁长荣 尚晓东 陈桂英 |
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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;中国科学院大学, 北京, 100049,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 |
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| 基金项目： | The National Natural Science Foundation of China under contract Nos 41676022, 41630970 and 41521005; the National Programme on Global Change and Air-Sea Interaction under contract No. GASI-IPOVAI-04; the Open Project Program of State Key Laboratory of Tropical Oceanography under contract No. LTOZZ1801; the Instrument Developing Project of the Chinese Academy of Sciences under contract No. YZ201432. |
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| 摘 要： | An integrated analysis of internal solitary wave(ISW) observations obtained from two moorings over the continental slope in the northern South China Sea(SCS) leads to an assessment of the vertical heat transport of the ISWs. The clusters of ISW packets are phase-locked to the fortnightly cycle of the semidiurnal tide. The ISWs appear during large semidiurnal tides, and there is a period of 5–6 d when no ISWs are observed. The effect of the ISWs on the continental slope heat budget is observed. The ISWs can modify a local temperature field in which the temperature in the upper layer can be changed by O(100) °C after the ISWs passed the mooring. Both ISWinduced diffusion and ISW-induced advection contribute to the temperature variation. The estimates imply an average vertical heat flux of 0.01 to 0.1 MW/m~2 in the ISWs in the upper 500 m of the water column. The vertical heat transport ranges from 0.56 to 2.83 GJ/m~2 with a mean value of 1.63 GJ/m~2. The observations suggest that the vertical heat transport is proportional to the maximum vertical displacement.
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| 关 键 词： | 内孤立波 垂向热量输送 温度变化 扩散 对流 垂向热通量 |
| 收稿时间： | 2017/10/20 0:00:00 |
The vertical heat transport of internal solitary waves over the continental slope in the northern South China Sea |
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| LIANG Changrong,SHANG Xiaodong and CHEN Guiying.The vertical heat transport of internal solitary waves over the continental slope in the northern South China Sea[J].Acta Oceanologica Sinica,2019,38(3):36-44. |
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| Authors: | LIANG Changrong SHANG Xiaodong and CHEN Guiying |
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| Institution: | 1.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, China2.State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China |
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| Abstract: | An integrated analysis of internal solitary wave (ISW) observations obtained from two moorings over the continental slope in the northern South China Sea (SCS) leads to an assessment of the vertical heat transport of the ISWs. The clusters of ISW packets are phase-locked to the fortnightly cycle of the semidiurnal tide. The ISWs appear during large semidiurnal tides, and there is a period of 5-6 d when no ISWs are observed. The effect of the ISWs on the continental slope heat budget is observed. The ISWs can modify a local temperature field in which the temperature in the upper layer can be changed by O (100)℃ after the ISWs passed the mooring. Both ISW-induced diffusion and ISW-induced advection contribute to the temperature variation. The estimates imply an average vertical heat flux of 0.01 to 0.1 MW/m2 in the ISWs in the upper 500 m of the water column. The vertical heat transport ranges from 0.56 to 2.83 GJ/m2 with a mean value of 1.63 GJ/m2. The observations suggest that the vertical heat transport is proportional to the maximum vertical displacement. |
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| Keywords: | internal solitary wave vertical heat transport temperature variation diffusion advection vertical heat flux |
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