净辐射和土壤热力流模型

净辐射和土壤热力流模型

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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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Classification(s)

Earth System SubjectEarth Surface SystemAnthroposphere
Geography SubjectHuman GeographyAgricultural Geography

Detailed Description

净辐射和土壤热力流模型:

1)净辐射:

式中,是净辐射;是反射系数;是收入的短波辐射;是“加热系数”;是短波辐射缺乏时的净长波损失

 224小时中的净长波损失(

            

  当缺乏这些测量值时,通常有下式计算:

       

式中,是平均大气温度;e是平均水气压;a,b,df是回归方程系数;n是晴天实际小时数;N是白昼的总小时数;Stefan-Boltzmann常数。

 3)加热系数;

      

式中, 是发出的长波辐射;是收入的长波辐射。

     4的白天总量之间的关系:

          

式中,是平均每天反射系数。

参考资料:

Rijks D A:苏丹灌溉棉花的水分利用II.净辐射和土壤热力流。Juornal of Applied Ecology,1968.5(3)

How to cite

《资源环境数学模型手册》 (2018). 净辐射和土壤热力流模型, Model Item, OpenGMS, https://geomodeling.njnu.edu.cn/modelItem/b9a8b108-9507-4c19-adfc-339fe046b92a
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Contributor

contributed at 2018-12-04

Authorship

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

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