地面长波辐射经验计算公式

地面长波辐射经验计算公式

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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 categoriesData-perspectiveRemote sensing analysis

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Chinese {{currentDetailLanguage}} Chinese

地面长波辐射经验计算公式

(1) 水汽和的混合发射率和水汽有效光学厚度的关系:

式中,为水汽和的混合发射率;分别为水汽和的发射率;为水汽和光谱重叠区的订正项。

(2) 水汽有效光学厚度和可降水量的关系:

式中,为气压变量;为标准大气压;q为比温;P为测点气压;为水汽有效光学厚度。

(3) 青藏高原地面绝对湿度和大气可降水量与水汽有效光学厚度的关系:

式中,e为地面绝对湿度;P为地面气压。

(4) 青藏高原水汽和大气层的混合发射率和地面绝对湿度的关系:

(5) 高原晴天条件下实际大气的视发射率:

式中,为晴天条件下实际大气的视发射率;为晴天地面大气逆辐射;为百叶箱温度。

(6) 实际天空的大气逆辐射:

式中,G天空有云时的大气逆辐射;为晴朗天空的逆辅射n为总云量(以小数表示)k与云底温度和云底与地面之间大气的水汽含量有关。

(7) 地面有效辐射的经验计算公式:

式中,F为有效辐射;为晴天有效辐射;n为总云量,a为经验系数。

参考文献:

周允华:青藏高原地面长波辐射经验计算方法。地理学报,198439(2)

 

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How to Cite

《资源环境数学模型手册》 (2018). 地面长波辐射经验计算公式, Model Item, OpenGMS, https://geomodeling.njnu.edu.cn/modelItem/e174dce2-0012-40c0-8cbd-ece4fd3358c7
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Last modifier : 
zhangshuo
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2020-11-11
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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 : 
zhangshuo
Last modify time : 
2020-11-11
Modify times : 
View History

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