| 北部湾冷水团的季节变化及其机制的数值研究 |
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| 引用本文： | 陈振华,乔方利,夏长水,王刚.北部湾冷水团的季节变化及其机制的数值研究[J].海洋学报(英文版),2015,34(1):44-54. |
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| 作者姓名： | 陈振华 乔方利 夏长水 王刚 |
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| 作者单位： | 中国海洋大学海洋环境学院, 山东 青岛 266100;国家海洋局第一海洋研究所, 山东 青岛 266061;国家海洋局 海洋环境科学和数值模拟国家海洋局重点实验室, 山东 青岛 266061,国家海洋局第一海洋研究所, 山东 青岛 266061;国家海洋局 海洋环境科学和数值模拟国家海洋局重点实验室, 山东 青岛 266061,国家海洋局第一海洋研究所, 山东 青岛 266061;国家海洋局 海洋环境科学和数值模拟国家海洋局重点实验室, 山东 青岛 266061,国家海洋局第一海洋研究所, 山东 青岛 266061;国家海洋局 海洋环境科学和数值模拟国家海洋局重点实验室, 山东 青岛 266061 |
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| 基金项目： | The National Natural Science Foundation of China under contract No. U1406404; the National Basic Research Program (973 Program) of China under contract No. 2014CB745004. |
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| 摘 要： | A wave-tide-circulation coupled model based on the Princeton Ocean Model is established to explore the seasonal variation of the cold water mass in the Beibu Gulf and its mechanisms. The results show that the cold water mass starts forming in March, reaches the maximum strength during June and July, and fades away since October. Strong mixing in winter transports the cold water from sea surface to bottom. The cold water mass remains in the bottom layer as the thermocline strengthens during spring, except for the shallow water where the themocline is broken by strong tidal mixing, which gradually separate the cold water mass from its surrounding warm water. Further analysis on the ocean current and stream function confirms that the cold water mass in the Beibu Gulf is locally developed, with an anticlockwise circulation caused by a strong temperature gradient. Sensitivity experiments reveal that the cold water mass is controlled by the sea surface heat flux, while the terrain and tidal mixing also play important roles.
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| 关 键 词： | Beibu Gulf cold water mass seasonal variation wave-tide-circulation coupled model |
| 收稿时间： | 2014/5/26 0:00:00 |
| 修稿时间： | 2014/8/11 0:00:00 |
The numerical investigation of seasonal variation of the cold water mass in the Beibu Gulf and its mechanisms |
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| CHEN Zhenhu,QIAO Fangli,XIA Changshui and WANG Gang.The numerical investigation of seasonal variation of the cold water mass in the Beibu Gulf and its mechanisms[J].Acta Oceanologica Sinica,2015,34(1):44-54. |
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| Authors: | CHEN Zhenhu QIAO Fangli XIA Changshui and WANG Gang |
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| Institution: | 1. College of Physical and Environmental 0ceanography, 0cean University of China, Qingdao 266100, China
2. The First Institute of 0ceanography, State 0ceanic Administration, Qingdao 266061, China |
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| Abstract: | A wave-tide-circulation coupled model based on the Princeton Ocean Model is established to explore the seasonal variation of the cold water mass in the Beibu Gulf and its mechanisms. The results show that the cold water mass starts forming in March, reaches the maximum strength during June and July, and fades away since October. Strong mixing in winter transports the cold water from sea surface to bottom. The cold water mass remains in the bottom layer as the thermocline strengthens during spring, except for the shallow water where the themocline is broken by strong tidal mixing, which gradually separate the cold water mass from its surrounding warm water. Further analysis on the ocean current and stream function confirms that the cold water mass in the Beibu Gulf is locally developed, with an anticlockwise circulation caused by a strong temperature gradient. Sensitivity experiments reveal that the cold water mass is controlled by the sea surface heat flux, while the terrain and tidal mixing also play important roles. |
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| Keywords: | Beibu Gulf cold water mass seasonal variation wave-tide-circulation coupled model |
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