开垦地的热量平衡特征模型

开垦地的热量平衡特征模型

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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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Application-focused categoriesNatural-perspectiveLand regions
Application-focused categoriesNatural-perspectiveAtmospheric regions

Model Description

Chinese {{currentDetailLanguage}} Chinese

开垦地的热量平衡特征模型

 

(1)下垫面辐射平衡方程:

式中,S为到达下垫面上的直接太阳辐射能量D为天空散射辐射通量;为太阳总辐射通量;RK为下垫面反射辐射通量;为下垫面反射率;BL为下垫面净余长波辐射通量(有效辐射)B为下垫面净余辐射通量(辐射平衡)

(2)热量平衡方程:

式中,P为下垫面与空气间的湍流热交换通量;LE为下垫面蒸发耗热量;F为地面与土壤内的热交换通量。

湍流热交换通量P和蒸发耗热量LE可用近地面层空气中热量和水汽扩散方程求得,即:

式中,KTKw分别为空气热量和水汽的湍流交换系数;分别为空气温度和空气温度的垂直梯度;Cp为空气定压比热;L为蒸发潜热;r为空气密度。

 

参考文献

谢贤群,鲍士柱:海拉尔东部开垦地与草场地表热量平衡及其对尘埃输送的影响。地理学报,1978,33(2)

 

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How to Cite

《资源环境数学模型手册》 (2018). 开垦地的热量平衡特征模型, Model Item, OpenGMS, https://geomodeling.njnu.edu.cn/modelItem/dc99a98d-0b09-44f4-a170-24d288b2ff8a
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Last modifier : 
Anxun Ren
Last modify time : 
2020-10-31
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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 : 
Anxun Ren
Last modify time : 
2020-10-31
Modify times : 
View History

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