Journal ArticleDOI
A modified horton equation for infiltration during intermittent rainfall
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In this article, a simple infiltration concept based on Horton's infiltration equation has been developed for use in mathematical rainfall runoff modelling, and the procedure advocated in this paper expresses the infiltration rate as a function of soil moisture storage state.Abstract:
A simple infiltration concept based on Horton's infiltration equation has been developed for use in mathematical rainfall-runoff modelling. Horton's infiltration formula is valid only where rainfall intensity at all times exceeds infiltration and, moreover, it does not provide adequately for the handling of a variety of initial soil moisture conditions. In contrast to Horton's concept where infiltration rate is expressed as a decay function of time, the procedure advocated in this paper expresses the infiltration rate as a function of soil moisture storage state. The procedure permits infiltration losses during intermittent rainfall sequences to be evaluated and accommodates a range of initial soil moisture conditions.read more
Citations
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Journal ArticleDOI
Propagation of uncertainty from rainfall to runoff: A case study with a stochastic rainfall generator
Simone Gabellani,Giorgio Boni,Giorgio Boni,Luca Ferraris,Luca Ferraris,J. von Hardenberg,Antonello Provenzale +6 more
TL;DR: In this paper, the impact of uncertainties in the spatialtemporal distribution of rainfall on the prediction of peak discharge in a typical mountain basin was explored, and the results of the analysis provided information on the minimum rainfall resolution needed for operational flood forecasting.
Journal ArticleDOI
Exploiting remote sensing land surface temperature in distributed hydrological modelling: the example of the Continuum model
TL;DR: In this paper, a distributed hydrological model aiming at balancing the need to reproduce the physical processes with the practical goal of avoiding over-parameterization is presented, which is designed to be implemented in different contexts with a special focus on data-scarce environments, e.g. with no streamflow data.
Journal ArticleDOI
The flash flood of the Bisagno Creek on 9th October 2014: An "unfortunate" combination of spatial and temporal scales
Francesco Silvestro,Nicola Rebora,F. Giannoni,Alessandro Cavallo,Luca Ferraris,Luca Ferraris +5 more
TL;DR: In this article, the effects of the spatial and temporal scales of the precipitation pattern were investigated by coupling a rainfall downscaling model with a hydrological model setting up an experiment that follows a probabilistic approach.
Journal ArticleDOI
Entropy theory for derivation of infiltration equations.
TL;DR: In this article, an entropy theory is formulated for modeling the potential rate of infiltration in unsaturated soils, which is illustrated with the derivation of six infiltration equations commonly used in hydrology, watershed management, and agricultural irrigation, including Horton, Kostiakov, Philip two-term, Green-Ampt, Overton and Holtan equations, and the determination of the least biased probability distributions of these infiltration equations and their entropies.
Journal ArticleDOI
General calibration methodology for a combined Horton-SCS infiltration scheme in flash flood modeling
Simone Gabellani,Simone Gabellani,F. Silvestro,Roberto Rudari,Roberto Rudari,Giorgio Boni,Giorgio Boni +6 more
TL;DR: This work proposes a calibration procedure which maintains the large applicability of the SCS-CN method as well as the continuous description of the infiltration process given by the Horton's equation suitably modified.
References
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Book
Hydrology for engineers
TL;DR: In this article, the basic processes of hydrology are stressed in detail and include weather (solar and earth radiation, temperature, humidity, wind), and precipitation (measurement, interpretation of data, variations in precipitation, snowpak and snowfall).
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The theory of infiltration: 4. sorptivity and algebraic infiltration equations
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An Approach Toward a Physical Interpretation of Infiltration-Capacity
TL;DR: In this paper, it was shown that if rain is continued at an intensity i> f, the infiltration capacity will decrease with rain duration in accordance with the equation (8) -K£t f = f.+ (fo-f c )e.
Journal ArticleDOI
Analysis of runoff-plat experiments with varying infiltration-capacity
TL;DR: In this paper, the same sail was used in all the experiments, and the experiments were carried out with surface slopes of 0, 1, 2, 4, 8, 12, and 16 per cent.
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