摘要
选择系列较长、代表性较好的长治雨量站为样本,采用丰枯统计、均值对比、模比差积曲线、累积平均值过程线四种方法对长治市年降水量进行了系列代表性及变化特点分析,同时对长治市第二次水资源评价采用的1956—2000年降水量系列的代表性进行了评定。
Because the time series of precipitation is longer and its representativeness is better, this paper selects the time series of Changzhi Rainfull station as the sample, and applies four methods including wet-dry statistics, comparision of mean, differential mass curve of modulus ratio and process curve of accumulated average, to analyze the representativeness and variety feature of Changzhi＇s precipitation time series. In the meantime, this paper also assesses the representativeness of precipitation series from 1956 to 2000,which is used in the secondary water resources assessment of Changzhi City.
出处
《山西水利科技》
2006年第4期62-65,共4页
Shanxi Hydrotechnics
关键词
年降水量
系列代表性
变化特点
分析
长治市
annual precipitation representativeness of series variety feature analysis Changzhi City
