基于复杂网络研究中国温度变化的区域特征  

Study on the regional characteristics of the temperature changes in China based on complex network

作　　者：周磊[1,2] 龚志强[1,3] 支蓉[1,3] 封国林[1,2,3] 

机构地区：[1]扬州大学物理科学与技术学院,扬州225002 [2]中国科学院大气物理研究所东亚区域气候,环境重点实验室,北京100029 [3]国家气候中心,中国气象局气候研究开放实验室,北京100081

出　　处：《物理学报》2009年第10期7351-7358,共8页Acta Physica Sinica

基　　金：国家自然科学基金(批准号:40675044);国家重点基础研究发展计划(批准号:2006CB400503);国家科技支撑计划(批准号:2007BAC29B01)资助的课题~~

摘　　要：为分析中国温度变化复杂性的区域特征,利用中国地区435个台站1961—2002年逐日平均温度序列,分别构建温度波动网络,并计算网络拓扑统计性质,给出全国的空间分布图像.顶点RRD,RDD,DRR,DDR,DdR的顶点度异常高,以这些顶点为代表的温度波动模态发生概率较大,对温度变化的趋势预测有一定的指导意义;根据5种顶点的顶点度在全国435个台站中的排行分布,将它们的主要作用区域依次定义为:全国型、次全国型、东部型、西南混合型及混合型.各台站的顶点度分配与全国平均顶点度分配的相似系数分布图存在一定的区域特征,为通过复杂性来研究温度变化的区域特征提供了理论基础.结合平均集群系数全国分布的区域性,将中国地区的温度变化分为三个区域:强复杂区域、中度复杂区域、弱复杂区域.To analyze the regional characteristics of temperature changes in China,by using the daily mean temperature series from 1961 to 2002 of 435 weather stations in China,we set up the temperature fluctuant networks,calculate the topology statistics of every station,and present the special distribution graph of all stations.We find that the degrees of RRD,RDD,DRR,DDR,DrR are extraordinarily high,and the occurrence probability of temperature fluctuation represented by these 5 nodes is greater, which is helpful for forecasting the trend of temperature changes. Then, from the distribution graph of the degrees of these 5 nodes in all the 435 stations, we define them by the symbols as countrywide model, hypo-countrywide model, eastern model, blend model, and western with southern model. The coefficient between the degree distribution in every station and the national average degree distribution has a regional characteristics, which provide us with the feasibility for analyzing the regional characteristics in theory. From the regional characteristics of the national distribution of the average clustering coefficient, we define three kinds of significant regions of temperature changes in China： strong complex regions, weak complex regions and middle complex regions.

关 键 词：气候变化 气候复杂网络 拓扑结构 复杂性 

分 类 号：P467[天文地球—大气科学及气象学]