摘要
利用大伙房水库站1950-2016年降水量资料,采用多指标、多方法对水库降水量的年内和年际变化特征进行分析。结果表明:降水量年内分配不均匀、年际变化大且具有阶段性。从年降水量变化趋势看,近60年来水库年降水量呈不显著减少趋势。
Based on the precipitation data from 1950 to 2016 on Dahuofang Reservoir station,the variation characteristics of precipitation are analyzed with multiple indexes and a series of methods.The results show that:1)Distribution of precipitation is uneven, and mainly focuses on July and August.The inter-annual variations are great,with significant difference between the wet year and dry year.2) The trend of precipitation reduction is insignificant in recent 60 years,with the abrupt points happening in 1961 and 1974.
出处
《吉林水利》
2019年第6期9-11,26,共4页
Jilin Water Resources
关键词
降水量
大伙房水库
特征
precipitation
Dahuofang Reservoir
variation characteristics
