杨小绘,贾英来

• 1:中国海洋大学海洋与大气学院海洋气象学系

摘要(Abstract)：

利用ERA_interim再分析资料以及OISST高分辨率海面温度(Sea surface temperature,SST)卫星观测数据,通过小波分析、二维模态相关(Pattern correlation)等方法系统地分析了黑潮延伸体区域涡旋尺度SST信号的季节内变化特征。发现涡旋尺度SST季节内变化信号在冬季最强、夏季最弱。该信号主要分布在黑潮-亲潮海洋锋面区域,在日本沿岸振幅最强、并沿黑潮、亲潮锋面向东延伸,其标准差高达1℃,是该海域冬季SST的重要变化信号。涡旋尺度SST的季节内变化周期以40～100 d周期为主,会引起大气边界层的响应,激发海气界面湍流热通量、海面气温、边界层高度等同位相的季节内变化。在该区域涡旋信号较强个数较多的时间段SST异常的季节内变化信号更明显,边界层大气与涡旋尺度SST季节内变化信号的相关程度更大。

关键词(KeyWords)： 黑潮延伸体;涡旋尺度海面温度;季节内变化特征;边界层大气

Abstract:

Keywords:

基金项目(Foundation): 国家重点基础研究发展计划项目(2017YFC1404101);; 国家自然科学基金项目(41975065)资助~~

作者(Author): 杨小绘,贾英来

DOI: 10.16441/j.cnki.hdxb.20190185

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