异常雨涝指标的计算模型

异常雨涝指标的计算模型

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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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Earth System SubjectEarth Surface SystemHydrosphere
Geography SubjectPhysical GeographyHydrology

Detailed Description

异常雨涝指标的计算模型

  

(1)单站异常雨涝指标:

                       

式中,ΔRi4~10月间月降水距平百分率≥50%的月降水距平百分率;m为月降水距平百分率≥50%的月数。I≥1.5时,认为单站出现异常雨涝,形成大雨涝。

(2)区域异常雨涝指标:

        

式中,d为区域雨涝指标;X1 ,X2 ,X3分别为出现一般雨涝、中涝、大涝的站数;α1 α2 α3为相应的权重,分别为α1=1,α2=1.5,α3=2;n为区域内代表站数。

 姜爱军,周学东,周桂香等:长江下游异常雨涝及其对农业影响的评估。自然资源学报,2000,55(supplement)

 

How to cite

《资源环境数学模型手册》 (2018). 异常雨涝指标的计算模型, Model Item, OpenGMS, https://geomodeling.njnu.edu.cn/modelItem/f21d9b8e-e44b-4536-a8fa-66a06fd52ea4
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Contributor

contributed at 2018-12-04

Authorship

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

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