摘要
本文利用1993年2月至2016年1月共23年的中尺度涡数据,对印度洋-太平洋暖池区(即印-太暖池区,15°S~15°N,60°E~170°W)中尺度涡的生命周期、振幅和半径等属性特征以及生命周期内各参数的演变特征进行了统计分析,并研究了印-太暖池区中尺度涡生成个数的季节变化规律及与厄尔尼诺循环的关系。结果表明:印-太暖池区大部分中尺度涡存在生命周期短、非线性、向西移动的特征;气旋涡与反气旋涡各参数的统计特征及其在生命周期内的变化趋势较为相似;印-太暖池区中尺度涡生成个数不具有明显的季节变化,并且会受到厄尔尼诺-南方涛动事件的影响。
Based on mesoscale eddy dataset from February 1993 to January 2016, the distribution characteristics and evolution processes of mesoscale eddies in the Indo-Pacific Warm Pool(15o S~15o N, 60o E~170o W), and its seasonal variation and relationship with ENSO are statistically analyzed in this paper. It shows that most mesoscale eddies in the Indo-Pacific Warm Pool are short-lived and nonlinear, and propagate westward. The study also finds that the distribution characteristics of cyclonic eddies and anticyclone eddies are similar, and so do their variation trends over the eddy lifecycle. The seasonal numbers of mesoscale eddies vary insignificantly in the whole domain and are affected by ENSO in the meanwhile.
作者
龙霜
董庆
殷紫
Long Shuang;Dong Qing;Yin Zi(Key Laboratory of Digital Earth Science,Aerospace Information Research Institute,Chinese Academy of Sciences,Beijing 100094,China;University of Chinese Academy of Sciences,Beijing 100049,China)
出处
《海洋学报》
CAS
CSCD
北大核心
2022年第3期118-127,共10页
基金
国家自然科学基金(41876210,41801355)
中国科学院战略性先导科技专项(A类)(XDA19060504)。
关键词
印–太暖池
中尺度涡
参数分布与演变特征
季节变化
Indo-Pacific Warm Pool
mesoscale eddy
distribution characteristics and evolution processes of parameters
seasonal variation
