源地黑潮及其上下游流量的变化特征  

Characters of transport variations at the source and adjacent area of Kuroshio

作　　者：蔡榕硕[1] 张启龙[2,3] 齐庆华[1] 

机构地区：[1]国家海洋局第三海洋研究所国家海洋局海洋-大气化学与全球变化重点实验室,福建厦门361005 [2]中国科学院海洋研究所,山东青岛266071 [3]国家海洋局第二海洋研究所卫星海洋环境动力学国家重点实验室,浙江杭州310012

出　　处：《台湾海峡》2009年第3期299-307,共9页Journal of Oceanography In Taiwan Strait

基　　金：国家重点基础研究发展计划资助项目(2007CB411800);国家海洋局第三海洋研究所基本科研业务费专项资金资助项目(海三科2009003);国家908专项资助项目(908-02-01-02);国家海洋局第二海洋研究所卫星海洋环境动力学国家重点实验室开放研究基金资助项目(200601)

摘　　要：本文基于长时间序列的海流和温盐资料(最新版SODA高分辩率再分析资料和137°E断面的观测资料),计算了黑潮流系四个主要断面的流量,并分析了它们的变化特征.结果表明,黑潮流系各主要断面流量具有显著的季节性差异,其年际、年代际变化明显.相关分析表明,源地黑潮及其上下游流量变化具有较强的独立性,变化不尽一致,其中,短期气候变化特征可能与热带太平洋的年际变化有明显关联,而年代际变化则可能与发生于北太平洋的年代际变化以及其它副热带中尺度涡旋等变化有一定联系.Based on the long series of current velocity data from the new version of SODA reanalysis, and data of temperature and salinity on 137°E section, the transport on 4 main sections of the source and adjacent areas of Kuroshio were calculated. And the annual cycle and long-term variations were analyzed. The results indicate that the transport of the main Kuroshio sections have strong seasonal and striking inter-annual and inter-decadal variations. The correlation analysis shows that there were strong independences among the variations of the transport in main sections of Kuroshio. Among them the short climate changes are likely related to the tropical Pacific inter-annuM variation, while the inter-decadal variation could be possibly associated with the North Pacific inter-decadal variations and subtropical meso-scale eddy.

关 键 词：物理海洋学 源地黑潮 流量 年变化 年际和年代际变化 

分 类 号：P733[天文地球—物理海洋学]