农田全日蒸散总量的遥感瞬时估算模型

农田全日蒸散总量的遥感瞬时估算模型

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Contributor(s)

Initial contribute: 2018-12-04

Authorship

Affiliation:  
岳天祥编著
Email:  
yue@lreis.ac.cn
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Method-focused categoriesData-perspectiveRemote sensing analysis

Model Description

Chinese {{currentDetailLanguage}} Chinese

农田全日蒸散总量的遥感瞬时估算模型

1.    计算瞬时蒸散速率的能量平衡――空气动力学阻抗遥感蒸散模式

(1)    能量平衡模式:

式中,G分别蒸散耗热量、净辐射和土壤热流量;分别为作物表面温度和空气温度;为中性温度层结下的空气动力学阻抗。

(2)    空气动力学阻抗模型:

式中,,为热量的层结稳定度函数,为理查逊数g为重力加速度,为以绝对温度表示的空气平均温度,为下垫面粗糙度;d为零平面位移;卡尔常数k=0.41

2.    用一次瞬时观测资料计算日总蒸散量的模式

(1)    任意时刻到达地面上的太阳辐射通量密度模型:

式中,为中午时刻的最大辐射通量密度;t为从日出到出现时的时间间隔;N为日出到日落的时间长度;在中午

(2)    晴天全天的辐射通量日总量模型:

  

参考文献

    谢贤群:遥感瞬时作物表面温度估算农田全日蒸散总量。环境遥感,199164

How to Cite

《资源环境数学模型手册》 (2018). 农田全日蒸散总量的遥感瞬时估算模型, Model Item, OpenGMS, https://geomodeling.njnu.edu.cn/modelItem/4f54b475-5bb9-4688-9c3f-5441450cb352
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Last modifier : 
haolingchen
Last modify time : 
2020-11-02
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Contributor

Initial contribute: 2018-12-04

Co-contributor(s)

Authorship

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

History

Last modifier : 
haolingchen
Last modify time : 
2020-11-02
Modify times : 
View History

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