大气科学Issue(5)：861-874,14.DOI:10.3878/j.issn.1006-9895.1410.14142
黑潮延伸体中尺度涡年代际变化与北太平洋风暴轴变化之间的关系
The Relationship between Mesoscale Eddies in the Kuroshio Extension Region and Storm Tracks in the North Pacific
摘要
Abstract
AbstractUsing 18 years of Band-pass filtered sea surface height (SSH) data from satellite altimeters, the relationship between the mesoscale eddy kinetic energy (EKE) in the Kuroshio Extension (KE) region and North Pacific atmospheric storm track is investigated by introducing the EKE area index and using regression analysis. A stronger North Pacific storm track was found to be associated with intensified Kuroshio Extension mesoscale eddy activity. The North Pacific storm track shifts northward (southward) as the maximum EKE core in the KE region shifted to the north (south). However, the variation between the EKE and North Pacific storm track is reversed in the zonal position. Moreover, a lead–lag correlation between the EKE and North Pacific storm track variations exists. The strength of the EKE exhibits a 3–4 year lag positive (negative) correlation with the EOF1 and EOF3 (EOF2) of the North Pacific storm track, while the opposite is true for the position of the EKE. This can arise from the westward propagation of sea surface height anomalies, driven by Atmospheric Teleconnection Patterns associated with the North Pacific storm track.关键词
黑潮延伸体/中尺度涡/风暴轴/相关性Key words
Kuroshio Extension/Mesoscale eddy/Storm track/Correlation分类
天文与地球科学引用本文复制引用
冯劭华,罗德海,钟霖浩..黑潮延伸体中尺度涡年代际变化与北太平洋风暴轴变化之间的关系[J].大气科学,2015,(5):861-874,14.基金项目
国家重点基础研究发展计划（973计划）项目2011CB403500、2013CB956203，国家自然科学基金项目41490642，海洋公益性行业科研专项NO.201005019 （）
