曾伟强,张书文,马永贵,王同宇

• 1:广东省近海海洋变化与灾害预警重点实验室/广东海洋大学海洋与气象学院
• 2:区域海洋动力学与数值模拟功能实验室/海洋科学与技术国家实验室

摘要(Abstract)：

【目的】研究1993-2017年南海中尺度涡的空间分布、季节变化、移动速度等特征。【方法】根据AVISO提供的地转流数据,应用Nencioli等人提出的涡旋识别算法。【结果】南海中尺度涡主要分布在南海东北部和越南东部海域,冬(夏)季有利于(反)气旋涡产生,中尺度涡以2.0～9.0cm/s的速度向西传播。【结论】南海气旋涡与反气旋逐年生成个数与ENSO事件相关,在1993-2007年期间,强(温和)厄尔尼诺年气旋涡生成数大于反气旋,弱(温和)拉尼娜年反气旋生成数大于气旋涡。2008-2017年,强厄尔尼诺年气旋涡生成数大于反气旋,温和拉尼娜年反气旋生成数小于气旋涡。在涡旋的生命周期内,涡旋半径与移动速度变化趋势相反。复杂海底地形会阻碍涡旋的传播。

关键词(KeyWords)： 南海;中尺度涡;识别;特征

Abstract:

Keywords:

基金项目(Foundation): 国家重点研发计划重点专项(2016YFC1401403);; 国家自然科学基金面上项目(41676008和41876005);; 国际合作项目(GASI-IPOVI-04);; 广东省自然科学基金(2016A030312004);; 广东海洋大学创新强校项目(GDOU2016050260)

作者(Author): 曾伟强,张书文,马永贵,王同宇

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