蒸发计算方法

蒸发计算方法

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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 categoriesProcess-perspectivePhysical process calculation

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Chinese {{currentDetailLanguage}} Chinese

蒸发计算方法
1)包文比能量平衡法:
              

式中,λ为水的蒸发潜热,Ε为蒸发量;Rn为净辐射能;G为土壤热通量;β为包文比;Cp为空气定压比热;ΔT为两高度的温度差;Δq为相应的比湿梯度。
(2) 综合空气动力学方法:
          

式中,ρ为空气密度,K为von Karman常数;z为高度;d为零面位移;为风速梯度;为湿度梯度;为比湿梯度;ФM,ФHФW为动量,热量和水汽的无因次稳定度通用函数。
Businger-Dyer公式
              

(3)综合热量平衡——涡旋相关法:
                

(4)水量平衡法:
           

式中,P为降水;IrIg分别为灌溉和地下水对土壤水和蒸发的补给量;E为蒸发;If为下渗;Roff为地表径流;ΔW为土壤平衡储水量变化;E0为睡眠蒸发力;Δh0为地下水补给量为零时的极限埋深;n为系数。

陈发组,孙晓敏,江西林等;高地下水埋深条件下的农田水热平衡实验研究。地理研究,1994,14(1)

 

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How to Cite

《资源环境数学模型手册》 (2018). 蒸发计算方法, Model Item, OpenGMS, https://geomodeling.njnu.edu.cn/modelItem/f9f0f261-3687-48b6-b955-ca79ccca0c30
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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

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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