物理学报2012，Vol.61Issue(2)：539-547,9.
基于复杂网络的北半球遥相关年代际变化特征研究
Analysis of decadal characteristics of leading teleconnections based on complex networks theory
摘要
Abstract
We construct a complex network of the middle latitude circulation system of north hemisphere（NCNH）.The decadal characteristic of leading teleconnection and its probable correlation with abrupt climate change are analyzed base on the circulation system network. Results show that（1） action centres of NAO,EUPA and WP have all moved during different periods in the recent 40 years and there has been a common abrupt change process as the end of the 1970s and beginning of the 1990s separately;（2） the new index which denotes the importance of teleconnection is defined using the node degree of NCNH.The temporal change of new index shows that the leading modes were PNA,EUPA and WP before the 1980s;index of NAO notably increased and all the five teleconnections were comparatively robust after 1980s;the index of AO notably increased and other modes comparatively decreased after 1987.So,center and index changes of decadal leading teleconnections may be another important phenomenon of abrupt climate change.关键词
复杂网络/遥相关/年代际变化/气候突变Key words
complex networks/teleconnections/decadal leading teleconnections/abrupt climate change分类
天文与地球科学引用本文复制引用
龚志强,支蓉,侯威,王晓娟,封国林..基于复杂网络的北半球遥相关年代际变化特征研究[J].物理学报,2012,61(2):539-547,9.基金项目
国家自然科学基金 （）
公益性行业专项 （）
国家科技支撑计划（批准号：2007BAC29B01）资助的课题~~ （）
