冬小麦旱情遥感监测模型

冬小麦旱情遥感监测模型

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contributed at 2018-12-04

Authorship

Affiliation:  
岳天祥编著
Email:  
yue@lreis.ac.cn
Homepage:  
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Classification(s)

Method-focused categoriesData-perspectiveRemote sensing analysis
Method-focused categoriesProcess-perspectiveBiological process calculation

Model Description

Chinese {{currentDetailLanguage}} Chinese

冬小麦旱情遥感监测模型

 

(1)    干旱指数模型:

 

 

式中,为时段末土体含水量;为作物凋萎时土壤水分;为作物需水(耗水)量。

 

(2)    表现热惯量模型:

 

 

式中,为到达地面的太阳总辐射;为反照率;为土壤昼夜温差变化。

 

(3)    纯渗入量模型:

 

 

式中,为第日(旬)进入层土壤的纯渗入量;为第层土壤的田间持水量;为第日(旬)前1日(旬)第层土壤的水储量。

 

(4)    实际蒸散量模型:

 

 

式中,为净辐射;为从作物冠层到空气的显热通量;为冠层下面的土壤热通量。

 

(5)    冬小麦耗水量的确定:

 

 

式中,为某时段的耗水量;为生长日数;为日耗水比(%

 

参考文献:

田国良,杨希华,郑柯:冬小麦旱情遥感监测模型研究。环境遥感,1992,72

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How to Cite

《资源环境数学模型手册》 (2018). 冬小麦旱情遥感监测模型, Model Item, OpenGMS, https://geomodeling.njnu.edu.cn/modelItem/76b7c460-d963-403e-b37c-3661919b2af2
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Last modifier : 
Mingyuan Li
Last modify time : 
2020-12-29
Modify times : 
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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 : 
Mingyuan Li
Last modify time : 
2020-12-29
Modify times : 
View History

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