四川水力发电2024，Vol.43Issue(2)：1-5,27,6.
四川省小时极值降水统计参数空间分布特征研究
Study on Spatial Distribution Characteristics of Statistical Parameters of Hourly Extreme Precipitation in Sichuan Province
摘要
Abstract
The author used conventional moment method and linear moment method to analyze the spatial distri-bution characteristics of the mean,deviation coefficient,skewness coefficient,and kurtosis coefficient of at 328 stations in Sichuan Province.The results show that the mean values,deviation and kurtosis coefficients of 1-hour and 3-hour extreme precipitation in Sichuan Province are gradually increasing from the western Sichuan Plateau to the Sichuan Basin.The overall distribution of extreme precipitation skewness coefficients shows a decreasing trend from northwest Sichuan to southeast Sichuan,and the high value centers are concentrated in the western Sichuan basin;the high value centers of 1-hour and 3-hour kurtosis coefficients appear in the south-ern Panxi region and the western Sichuan plateau,respectively.The results of this paper have important refer-ence value in the prevention work of flash flood forecasting and early warning in small and medium-sized basins in Sichuan Province.关键词
线性矩法/极值降水/统计参数/小时雨量Key words
Linear moment method/Extreme precipitation/Statistical parameters/Hourly precipitation分类
水利科学引用本文复制引用
王帅人,胡静,兰平,覃光华..四川省小时极值降水统计参数空间分布特征研究[J].四川水力发电,2024,43(2):1-5,27,6.基金项目
国家自然科学基金面上项目(51879172) （51879172）
