A probabilistic investigation of infiltration in the vadose zone: proposal for a new formula of infiltration rate

descriptionPublicationkeyboard_double_arrow_right Article 07 Dec 2006 France English Publisher:WileyJournal:Hydrological Processes, volume 21, pages 2,845-2,849 (issn: 0885-6087, eissn: 1099-1085,

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Authors: Carlier, E.;

doi: 10.1002/hyp.6495

A probabilistic investigation of infiltration in the vadose zone: proposal for a new formula of infiltration rate

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Abstract

AbstractThe infiltration rate in the unsaturated zone is analysed from a probabilistic point of view. It is shown that the empirical formulas of Horton and Kostiakov, without apparent physical basis, are explained in a probabilistic approach. Horton's formula reflects a Markovian process contrary to Kostiakov's formula. This approach made it possible to explain why Kostiakov's formula is more powerful than that of Horton. A new equation of infiltration is proposed. The three formulas were compared, for four types of soil, with the model of van Genuchten based on the Richards equation. Copyright © 2006 John Wiley & Sons, Ltd.

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France

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Institut National des Sciences de l Univers
France
University of Lille
France
Artois University
France

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