热带太平洋跃层及温盐分布特征分析

Study on Distribution Characteristics of Thermohaline and Thermocline in the Tropical Pacific Ocean

摘要: 本文基于2004年4月~2021年9月期间的Argo温盐剖面数据，应用经验正交函数分析法(EOF)方法对热带太平洋海域上层海洋的跃层深度和温盐空间分布、年际和季节变化做出分析，讨论了经验正交函数分析法的第一、二、三模态的空间分布和时间序列，探讨了相应分布情况可能的原因，特别是与ENSO事件的相关性。

Abstract: Based on the Argo thermohaline profile data during April 2004 to September 2021, this paper uses the method of Empirical Orthogonal Function (EOF) to make seasonal and interannual variations analysis of the layer depth of the upper ocean and the thermohaline spatial distribution in the tropical Pacific Ocean. And we discuss the first, second and third modal space distribution and time sequence in the empirical orthogonal function decomposition method, in order to study the possible causes for those corresponding distributions, especially the correlation with ENSO events.