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	A combined rainfall infiltration model based on Green-Ampt and SCS-curve number
	Li J.; Wang, Z. G.; Liu, C. M.
	2015
关键词	Green-Ampt SCS-CN runoff infiltration soil hydrology cn method soil validation flow air
英文摘要	The Green-Ampt infiltration equation is an incomplete governing equation for rainfall infiltration due to the absence of an inertia term. The estimation of the capillary pressure head at the wetting front is difficult to determine. Thus, a major limitation of the Green-Ampt model is the constant, non-zero surface ponding depth. This paper proposes an integrated rainfall infiltration model based on the Green-Ampt model and the SCS-CN model. It achieves a complete governing equation for rainfall infiltration by momentum balance and the water budget based on the Green-Ampt assumption, and uses the curve number from the SCS-CN method to calculate the initial abstraction, which is used as a basic parameter for the governing equation of the intensity of rainfall loss during the runoff period. The integrated rainfall infiltration model resolves the dilemma for capillary pressure head estimation, overcomes the limitation of constant, non-zero surface ponding depth, and facilitates the calculation of runoff for individual flood simulations. Copyright (c) 2014 John Wiley & Sons, Ltd.
出处	Hydrological Processes
卷	29
期	11
页	2628-2634
收录类别	SCI
语种	英语
ISSN号	0885-6087
内容类型	SCI/SSCI论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/38691]
专题	地理科学与资源研究所_历年回溯文献
推荐引用方式 GB/T 7714	Li J.,Wang, Z. G.,Liu, C. M.. A combined rainfall infiltration model based on Green-Ampt and SCS-curve number. 2015.

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