密云水库流域水文频率曲线分析与应用  

Analysis and application of hydrological frequency curve in Miyun reservoir basin

作　　者：李婵娟 温江丽 焦有权[2] 荀志成 楚宾 LI Chanjuan;WEN Jiangli;JIAO Youquan;XUN Zhicheng;CHU Bin(Miyun Reservoir Management Office,Bejing101512,China;Beijing Vocational Collge of Agriculture,Beijing 102442,China)

机构地区：[1]密云水库管理处,北京1015122 [2]北京农业职业学院,北京102442

出　　处：《北京水务》2022年第6期18-23,共6页Beijing Water

摘　　要：水文频率曲线分析是设计洪水的关键要素之一,对于实时发掘水库的水资源潜力,有效调蓄洪水和高效综合利用水资源具有重要意义。密云水库是北京重要的地表水源地,密云水库的正常运行对北京市供水安全具有极其重要的意义。收集了1960—2020年密云水库的降雨数据,使用Excel软件内置函数的计算功能和统计工具,选择皮尔逊III型理论曲线来拟合不同频率下的多年年降雨量,得到密云水库流域年降雨量的最优理论频率拟合曲线,利用拟合频率曲线计算了密云水库不同频率条件下的年降雨量,为流域水资源的利用和管理提供了依据。Hydrological frequency analysis is the key technology of designing flood.It is of great significance for real-time exploration of the potential of reservoir flood resources for regulating and storing floods and comprehensive management of water resources.Miyun Reservoir is the only surface water source in Beijing.The normal operation of the reservoir is of great significance to the safety of water supply in Beijing.This paper collected the rainfall data of Miyun Reservoir from 1960 to 2020,used the built-in functions and tools of Excel software,and selected the Pearson type Ⅲ theoretical curve to fit the annual rainfall under different frequencies for many years.An optimal theoretical frequency fitting curve of annual rainfall in Miyun Reservoir watershed was synthesized.The fitting curve was used to calculate the annual rainfall under different frequency conditions in the Miyun Reservoir,which can provide a basis for the utilization and management of water resources in the basin.

关 键 词：密云水库 EXCEL 频率曲线 皮尔逊Ⅲ型 降雨量 

分 类 号：P213[天文地球—测绘科学与技术]