小流域汇流非线性模式

小流域汇流非线性模式

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Initial contribute: 2018-12-04

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Affiliation:  
岳天祥编著
Email:  
yue@lreis.ac.cn
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Chinese {{currentDetailLanguage}} Chinese

小流域汇流非线性模式

(1)等流时线积分方程式:

               

式中,Qt为时刻t汇集到流域出口的地表径流;τ为流域中各点汇至出口处汇流时间(其中最长汇流时间为τm);()为t时刻流域的汇流曲线(即等流时线所包围面积ω随汇流时间τ的增长率);It-τ为在时刻(t-τ)的净雨强度。

(2)无资料地区小流域汇流计算公式

                     V=mJ1/3Qn     

式中,V为汇流速度;Q为出流量;m为反映坡地和河槽对水流的阻力系数;n为反映不同流域非线性影响程度的指数。

(3)研制诺模图的函数关系:

                  Qm=ƒV,tcFc/F,I(-)

式中,Qm为洪峰流量(s·m3);V为汇流速度(s·m);tc为产流历时(h);Fc/F为造峰汇流面积与流域面积之比;当tc<τ时,I(-)为产流历时的平均净雨速度,tc>=τ时,I(-)为汇流时间的平均净雨强度(mm·h-1)。

杨家坦:小流域汇流非线性模式的研究,地理学报,1981,36(4)

 

How to Cite

《资源环境数学模型手册》 (2018). 小流域汇流非线性模式, Model Item, OpenGMS, https://geomodeling.njnu.edu.cn/modelItem/c4ed4243-c71b-4bc8-b62f-224b5d978674
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Last modifier : 
zhangshuo
Last modify time : 
2020-11-11
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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 : 
zhangshuo
Last modify time : 
2020-11-11
Modify times : 
View History

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