桂平市近50年气温变化特征分析

Temperature Variation Characteristics of the Past 50 years in Guiping County

利用桂平市1954～2007年气温资料，通过滑动平均、线性回归、距平列表等统计方法，分析了桂平市50年来的气候变化特征。结果表明：桂平市四季气温呈明显上升趋势，增温趋势较全区均值大，80年代中期以后呈加速增温，气候异常偏暖的年份都出现在90年代以后的偏暖期；四季的气温均上升，其中冬季增温贡献最大，春季次之，90年代后出现了明显的暖冬天气。

Base on the temperature data of Guiping county from 1954 to 2007, through such statistical methods as moving average, linear regression, anomaly list, temperature variation characteristics were analyzed. The results show that： Guiping temperature variations of every seasons show a clear upward trend, which is more obvious than that of the whole region＇s average. Since the mid-80s it was accelerated warming, and climate abnormal warmer years all occurred in the warmer period after 1990s. Seasons temperature all increased, winter most, spring followed. There are a significant warm winter phenomenon after 1990s.