摘要
利用1960—2017年降水资料,通过统计分析、累积距平法和小波分析,研究58年来含山县降水量和降水频次的变化特征。结果表明,自1960年以来,含山县降水量、降水频次总体而言均呈上升趋势,同时表现出周期振荡变化。通过小波分析发现,在年际变化过程中,含山县降水量存在着15～25年、8～10年、3～5年的周期振荡特征,降水频次存在着18～32年、8～17年的周期变化特征。
Using the annual precipitation data from 1960 to 2017,the change characteristics of precipitation and its frequency in Hanshan County were studied in the past 58 years by statistical analysis,cumulative anomaly method and wavelet analysis. The results showed that,since the 1960s,the precipitation and its frequency in Hanshan County had generally increased,and it showed cyclical fluctuations. Through wavelet analysis,it was found that during the interannual change,the precipitation of Hanshan County had periodic fluctuation characteristics of 15-25 years,8-10 years,and 3-5 years,and the precipitation frequency had the periodic change characteristics of 18-32 years and 8-17 years.
作者
王鹏
刘周华
付敏
奚立信
WANG Peng;LIU Zhou-hua;FU Min;XI Li-xin(Hanshan County Meteorological Bureau in Anhui Province,Hanshan Anhui 238100)
出处
《现代农业科技》
2019年第8期192-193,196,共3页
Modern Agricultural Science and Technology
