用小波分析方法诊断杭州近50a夏季气温变化  

Diagnostic study of summer temperature variation in Hangzhou during the last 50 a using wavelet analysis

作　　者：樊高峰[1] 苗长明[2] 

机构地区：[1]浙江省气候中心,杭州310017 [2]浙江省气象局,杭州310002

出　　处：《气象科学》2008年第4期431-434,共4页Journal of the Meteorological Sciences

基　　金：浙江省科技厅重点科研社会发展项目(2005C23050)

摘　　要：应用小波分析方法对杭州市1951年以来的夏季气温进行分析,发现杭州夏季平均气温发生过4次转折,每次年代际转换中都伴随着年际剧烈振荡。1978—1981年是一次大幅度转折点,随后气温剧烈振荡的发生频率明显增多,强度增大。随着全球气候变化杭州夏季平均气温周期多变,不稳定性增加。The wavelet translation method has been used to analyze the temperature changing trend of Hangzhou in summer since 1951. the results show that there exist four shifts in the trend. Every shift tends to accompany with the summer temperature violent surge. There is an obvious shift in 1978-1981 and there are more violent surge since 1980s. By reason of global climatic change, the temperature changing cycle will be more fickle, the changing trend will be more instable.

关 键 词：杭州 夏季 气温 小波分析 

分 类 号：P423.32[天文地球—大气科学及气象学]