摘要
为研究汉江流域降水时空演变规律,基于汉江流域内23个气象站点1959~2019年的降水资料,采用线性趋势法、小波分析法、滑动平均差法和反距离权重法等多种统计分析方法,分析该流域的降水演变规律。结果表明:1959~2019年,汉江流域降水量呈现出不明显的上升趋势,在1978年、1989年和2001年检测出突变点,降水变化的主周期为26 a;汉江流域的多年平均降水量整体呈现出“东高西低、南高北低”的分布特征,不同年代降水量的空间分布特征差异较大。
In order to study the temporal and spatial evolution law of precipitation in Hanjiang River Basin,based on the precipitation data of 23 meteorological stations in the Hanjiang River Basin from 1959 to 2019,various statistical analysis methods such as linear trend method,wavelet analysis method,moving average difference method and inverse distance weight method were uesd to analyze the precipitation evolution law of the basin.The results showed that the precipitation in Hanjiang River Basin presented an insignificant upward trend from 1959 to 2019.The abrupt points were detected in 1978,1989 and 2001,and the main period of precipitation change was 26 years.The annual average precipitation in Hanjiang River Basin presented the distribution characteristics of high in the east,low in the west,high in the south and low in the north,and the spatial distribution characteristics of precipitation in different years were quite different.
作者
潘鑫
秦创创
PAN Xin;QIN Chuangchuang(Guangdong Communication Planning&Design Institute Group Co.,Ltd.,Guangzhou 510630,China;College of Hydrology and Water Resources,Hohai University,Nanjing 210098,China;PowerChina Urban Planniing&Design Institute Co.,Ltd.,Guangzhou 510630,China)
出处
《水利水电快报》
2024年第3期12-15,22,共5页
Express Water Resources & Hydropower Information
关键词
汉江流域
降水量
时空演变
突变检测
周期分析
Hanjiang River Basin
precipitation
temporal and spatial evolution
mutation detection
periodicity analysis
作者简介
潘鑫,男,硕士,主要从事水利工程咨询工作。E-mail:panx130@qq.com;通信作者:秦创创,男,硕士,主要从事流域水环境治理工作。E-mail:1569702020@qq.com。
