刘颖洁,田丰林,陈戈

• 1:中国海洋大学信息科学与工程学院

摘要(Abstract)：

中尺度涡旋在海洋中无处不在,研究中尺度涡旋的海表温度(SST)对于研究中尺度涡旋上的海气相互作用具有重要意义。本文使用南海2000—2015年的SST和海面高度异常(SSHA)卫星观测数据,分析了南海不同振幅范围中尺度涡内SST的特征。研究表明,不是所有的反气旋涡(气旋涡)内的SST异常(SSTA)都是正(负)的,大约35%(29%)的反气旋涡(气旋涡)与SSTA呈正相关,且在不同振幅范围下表现出不同的空间和季节变化。中尺度涡旋内合成SSTA与SSHA表现出位相不一致,反气旋涡(气旋涡)内的SSTA的最大值(最小值)相对于涡心偏向于赤道(两极)方向。涡旋内SSTA与SSHA呈线性相关,反气旋涡(气旋涡)振幅每增加1 cm,涡旋内平均SSTA则增加(降低)0.02(0.01)℃。

关键词(KeyWords)： 南海;中尺度涡旋;海表温度;时空变化;SSTA合成图;SSTA-SSHA关系

Abstract:

Keywords:

基金项目(Foundation): 国家海洋环境安全保障重点专项项目(2016YFC1401008)资助~~

作者(Author): 刘颖洁,田丰林,陈戈

DOI: 10.16441/j.cnki.hdxb.20190070

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