降雨补给潜水的滞后分配  

LAGGING DISTRIBUTION OF PRECIPITATION RECHARGE TO PHREATIC WATER

作　　者：李云峰[1] 

机构地区：[1]西安工程学院,西安市710054

出　　处：《勘察科学技术》1997年第3期22-25,21,共5页Site Investigation Science and Technology

基　　金："八五"国家重点科技攻关项目!85-926-05-01-04

摘　　要：大气降水入渗补给潜水存在着滞后效应。入修补给潜水的过程是一个正偏态曲线，可用瑞利分布来描述，把大气降水入渗补给量合理地分配到各计算时段中去。本文通过实例讨论了降雨补给潜水的滞后分配问题；以端利分布为核函数来描述降水入渗补给潜水的过程时，所需的分布参数（尺度参数β和随机变量x）可用滞后时间长度Ts与入渗时间长度Ti来求得，而Ti、Ts可按野外长现资料确定出。There exists lagging effect for phreatic water recharge by infiltration of atmospheric precipita tion. The process of phreatic water recharge by infiltration is an ortho-deviation curve and can be de scribed by Rayleigh distribution,and the recharge amount of atmospheric precipitation infiltration can be rationally distributed into various calculated time intervals. By practical examples -this paper discusses the lagging distribution problem of phreatic water recharge by precipitation. When the process of phreatic wa ter recharge by infiltration of precipitation is described by Rayleigh distribution as a nuclear function,the required distribution parameters (dimension parameter 9 and stochastic variable x)can be found by the Iagging time length Ts and infiltration time length Ti. Moreover,the parameters T, and Ts can be deter mined by the data of long-term observations.

关 键 词：降水 补给 潜水 滞后分配 地下水 入渗补给 

分 类 号：P641.2[天文地球—地质矿产勘探] P641.132[天文地球—地质学]