Seasonal variability of the isopycnal surface circulation in the South China Sea derived from a variable-grid global ocean circulation model

WEI Zexun FANG Guohong XU Tengfei WANG Yonggang LIAN Zhan

魏泽勋, 方国洪, 徐腾飞, 王永刚, 连展. 南海等密度面环流季节变化的数值模拟研究[J]. 海洋学报英文版, 2016, 35(1): 11-20. doi: 10.1007/s13131-016-0791-3
引用本文: 魏泽勋, 方国洪, 徐腾飞, 王永刚, 连展. 南海等密度面环流季节变化的数值模拟研究[J]. 海洋学报英文版, 2016, 35(1): 11-20. doi: 10.1007/s13131-016-0791-3
WEI Zexun, FANG Guohong, XU Tengfei, WANG Yonggang, LIAN Zhan. Seasonal variability of the isopycnal surface circulation in the South China Sea derived from a variable-grid global ocean circulation model[J]. Acta Oceanologica Sinica, 2016, 35(1): 11-20. doi: 10.1007/s13131-016-0791-3
Citation: WEI Zexun, FANG Guohong, XU Tengfei, WANG Yonggang, LIAN Zhan. Seasonal variability of the isopycnal surface circulation in the South China Sea derived from a variable-grid global ocean circulation model[J]. Acta Oceanologica Sinica, 2016, 35(1): 11-20. doi: 10.1007/s13131-016-0791-3

南海等密度面环流季节变化的数值模拟研究

doi: 10.1007/s13131-016-0791-3

Seasonal variability of the isopycnal surface circulation in the South China Sea derived from a variable-grid global ocean circulation model

  • 摘要: 本研究建立了一个变网格全球大洋环流数值模式,其分辨率在20°S-50°N和99°-150°E之间为(1/6)°。我们利用该模式对南海等密度面环流进行了分析。模拟结果显示,南海等密度面环流可以分为4层。表层和次表层环流由季风驱动,在冬季为海盆尺度的气旋式环流控制,而夏季为反气旋式环流控制。南海中层环流形态与上层正好相反,冬季为海盆尺度的反气旋式环流,而夏季为气旋式环流。南海深层环流在春季和夏季较弱,最大流速不超过0.6 cm/s;在秋季和冬季,南海深层环流形态主要表现为菲律宾西岸存在较强的东边界流,其流速超过1.5 cm/s,且秋季流向向南,冬季向北。数值模拟结果还显示,吕宋海峡水交换也呈垂向4层的分层结构。吕宋海峡海水入侵和季风是驱动南海中深层环流的主要因素。
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  • 收稿日期:  2015-03-19
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