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.
出处
《气象科学》
CSCD
北大核心
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)
关键词
杭州
夏季
气温
小波分析
Hangzhou Summer Temperature Wavelet analysis
