气象学报Issue(4):711-724,14.DOI:10.11676/qxxb2015.045
晚秋与后冬间欧亚遥相关型波列反相现象探究
An investigation into the phase reversal of EU teleconnections ;from late autumn to the late winter
摘要
Abstract
The relationship between the EU pattern in late autumn (November)and late winter (the following January and Feb-ruary)for 1979/1980-2013/2014 are discussed in this paper.It is shown that significant negative correlation exists between the late autumn and the late winter EU teleconnection indices.When we compare the circulation evolutionary features between out-of-phase and in-phase processes of EU pattern from the late autumn to the late winter,it is shown that the late autumn cir-culation anomalies in out-of-phase years have significant implications on the late winter,while the implications are weak in in-phase years.The circulation evolutionary features of in-phase and out-of-phase processes are both closely related to North At-lantic turbulent heat flux (NATU).The specific physical process is that the vertical movements and moisture content in low and middle levels of the troposphere over North Atlantic at about 50°N both increase (decrease)in NATU positive (negative) anomalies,which corresponds to negative (positive)anomalies of geopotential height over North Atlantic and even negative (positive)EU pattern.关键词
欧亚遥相关/湍流热通量/北大西洋Key words
Eurasian pattern/Turbulent heat flux/North Atlantic分类
天文与地球科学引用本文复制引用
乔少博,张志森,王晓娟,封国林..晚秋与后冬间欧亚遥相关型波列反相现象探究[J].气象学报,2015,(4):711-724,14.基金项目
国家自然科学基金(41375078、41175067、41305075、41475064)、国家重点基础研究发展计划项目(2012CB955902、2013CB430204)。 ()