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A Modification of the Mixed Form of Richards Equation and Its Application in Vertically Inhomogeneous Soils : Volume 6, Issue 1 (16/05/2011)

By Kalinka, F.

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Book Id: WPLBN0003988936
Format Type: PDF Article :
File Size: Pages 5
Reproduction Date: 2015

Title: A Modification of the Mixed Form of Richards Equation and Its Application in Vertically Inhomogeneous Soils : Volume 6, Issue 1 (16/05/2011)  
Author: Kalinka, F.
Volume: Vol. 6, Issue 1
Language: English
Subject: Science, Advances, Science
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Historic
Publication Date:
2011
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

Citation

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Ahrens, B., & Kalinka, F. (2011). A Modification of the Mixed Form of Richards Equation and Its Application in Vertically Inhomogeneous Soils : Volume 6, Issue 1 (16/05/2011). Retrieved from http://worldlibrary.in/


Description
Description: Goethe-University Frankfurt am Main, Institute for Atmospheric and Environmental Sciences, Germany. Recently, new soil data maps were developed, which include vertical soil properties like soil type. Implementing those into a multilayer Soil-Vegetation-Atmosphere-Transfer (SVAT) scheme, discontinuities in the water content occur at the interface between dissimilar soils. Therefore, care must be taken in solving the Richards equation for calculating vertical soil water fluxes. We solve a modified form of the mixed (soil water and soil matric potential based) Richards equation by subtracting the equilibrium state of soil matrix potential ΨE from the hydraulic potential Ψh. The sensitivity of the modified equation is tested under idealized conditions. The paper will show that the modified equation can handle with discontinuities in soil water content at the interface of layered soils.

Summary
A modification of the mixed form of Richards equation and its application in vertically inhomogeneous soils

 

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