热带太平洋盐含量的年际变化  

Interannual Variations of Salt Content in the Tropical Pacific Ocean

作　　者：谢强[1] 李海洋[1,2] 王东晓[1] 

机构地区：[1]中国科学院南海海洋研究所热带海洋环境动力学重点实验室,广东广州510301 [2]广州市南沙区气象局,广东广州511458

出　　处：《海洋科学进展》2009年第2期155-165,共11页Advances in Marine Science

基　　金：国家重点基础发展计划项目--亚印太交汇区海气相互作用及其对我国短期气候的影响(2006CB403604);中国科学院知识创新工程重要方向项目--印太-南海联系及其对南海环流意义(KZSW2-YW-214)

摘　　要：为揭示热带太平洋上层盐度与ENSO的关系,探讨热带海洋的盐含量收支问题,运用EOF方法对SODA资料中热带太平洋表层和次表层(157.5m)间的盐含量变化特征进行了分析。结果表明,盐含量具有年际变化的特征,第一和第二模态的空间分布分别具有南北反相和东西反相的特点。这为更好地研究与全球水文循环有关的海洋热动力问题提供了依据。In order to reveal the relationship between ENSO and tropical Pacific upper layer salinity and dis- cuss the budget of salt content, EOF is used to analyze SODA data for learning the variation characteristics of the salt content in the layer between 7.5 m and 157.5 m. The results show that the salt content has in- terannual variation. The spatial distributional pattern of Mode 1 has its features that the south area of the ocean keeps antiphase of the north area while the Mode 2 pattern has its features that the east area of the o- cean keeps antiphase of the west area. These results present the scientific background to help better study the marine thernodynamics related to the global water cycling.

关 键 词：EOF ENSO 热带太平洋 盐含量 

分 类 号：P731.12[天文地球—海洋科学]