考虑随机输入信息的浅层地下水系统模型

考虑随机输入信息的浅层地下水系统模型

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contributed at 2018-12-04

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Affiliation:  
岳天祥编著
Email:  
yue@lreis.ac.cn
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Method-focused categoriesData-perspectiveGeoinformation analysis
Method-focused categoriesProcess-perspectivePhysical process calculation

Model Description

Chinese {{currentDetailLanguage}} Chinese

考虑随机输入信息的浅层地下水系统模型

      1.水量转换模型

      1)降水入渗补给机制及计算模型:

        降水入渗补给量的计算公式为:

            

式中,Hwp为节点地面高程;c分别为待定参数。

      2)河道渗漏补给模型及水位-流量转换关系:

        任一段的河道渗漏补给量为:

                

        河道水位hr由流量和曼宁公式决定:

                  

式中,为单位换算系数;A为河道横断面面积;R为水力半径;n为河床摩阻系数;Sf为河道比降。

置换曼宁公式中的河道形状及水力半径,河道水位可表示为:

              

式中,均为河道几何形状参数。

      2.时间降水量系列随机生成方法

      1)矩法计算样本参数:

                 

 

(2) 采用乘同余法生成0~1区间随机数:

 

        

 

式中,取作为生成的随机数。X0,M为与计算机型号选用的参数。

(1)Box-Mulle法将均匀分布随机数列转换成正态分布的随机数列:

 

          

 

(2)由正态分布随机数列转换成P-Ⅲ型分布的随机数:

 

          

 

(5)生成年降水量系列:

 

              

 

可采用典型分解方法生成年内所需时段的降水量。

石玉波,周之豪:考虑随机输入信息的渐层地下水系统模型。自然资源学报,1995,10(1)

 

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How to Cite

《资源环境数学模型手册》 (2018). 考虑随机输入信息的浅层地下水系统模型, Model Item, OpenGMS, https://geomodeling.njnu.edu.cn/modelItem/59f2e6e0-2dc1-43c0-8794-9e3470579e16
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Last modifier : 
Zhiyi Zhu
Last modify time : 
2020-11-14
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Contributor(s)

Initial contribute: 2018-12-04

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Authorship

Affiliation:  
岳天祥编著
Email:  
yue@lreis.ac.cn
Homepage:  
View
Is authorship not correct? Feedback

History

Last modifier : 
Zhiyi Zhu
Last modify time : 
2020-11-14
Modify times : 
View History

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