年陆地蒸发量计算公式

年陆地蒸发量计算公式

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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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年陆地蒸发量计算公式

(1)年陆地蒸发量计算公式:

               Ei=Pi-Ri±△Wi

式中,EiPiRi分别为年陆地蒸发量、年降水量、年径流深;△Wi为年初、年末流域蓄水量。

               △Wi=△Wi,1+△Wi,2

式中,△Wi,1=E冬日t-t)为年初、年末流域包气带土壤含水量的蓄变量,tt分别为年初、年末流量地下水退水历时,E冬日为流域冬季陆地蒸发量;△Wi,2=Re,初-Re,末为年初、年末流域地下水和河槽水的蓄变量,Re,初Re,末分别为年初、年末流量。

(2)流域冬季陆地蒸发量计算公式:

               

式中,EE3~10月分别为年陆地蒸发量和3~10月陆地蒸发量;t冬日1~2月和11~12月的历时。

(3)年径流统计参数计算式:

               

式中,CV,R为雨量站点年径流变差系数;CV,P为雨量站点年降水量变差系数;ɑ(-)为雨量站点多年平均年径流系数;K为年径流深均方差бR与年降水量均方差бn的比值。

(4)年径流深均方差бR的计算式:  

                  

式中,Ri为年径流深;R(-)为多年平均年径流深;n为年径流深系列年数。

      5)年降水量均方差бn

 

式中,Pi为年径流深,P(-)为多年平均年径流深;n为年径流深系列年数。  

杨家坦:湿润地区年陆地蒸发量系列分析与应用。地理研究,1986,5(1)

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How to Cite

《资源环境数学模型手册》 (2018). 年陆地蒸发量计算公式, Model Item, OpenGMS, https://geomodeling.njnu.edu.cn/modelItem/817dce3e-8147-4b3a-9f74-981c61f3bdc5
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Last modifier : 
zhangshuo
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2020-10-29
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Contributor(s)

initial contribute: 2018-12-04

Authorship

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

History

Last modifier : 
zhangshuo
Last modify time : 
2020-10-29
Modify times : 
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