Oklahoma State University

Soil Physics Toolbox

The Soil Physics Toolbox is a collection of Matlab functions developed by the Oklahoma State University soil physics research group

SOIL 6583 -- a subset of functions and scripts developed for the class "Soil Physics Theory"

  • darcy.m, Function that describes vertical macroscopic water flow in saturated porous media.
  • Klearn.m, Script that shows the hydraulic conductivity for two different soils using the empirical Mualem-van Genuchten model.
  • KCapillaryModel.m, Capillary model for Hydraulic conductivity. T.J. Marshall. 1958.
  • MvGvsCapillaryModel.m, Script to compare the Mualem-van Genuchten model and the capillary bundle model to estimate hydraulic conductivity.
  • SWRCfit.m, Fits three different soil water retention models to measured volumetric water content and matric potential data.
  • SWRCfun.m, Soil water retention curve to estimate theta_v using the function proposed by van Genuchten (1980).
  • vGConductivity.m, Function that returns the unsaturated hydraulic conductivity function for a specified soil texture using the Mualem-van Genuchten conductivity model.
  • RosettaParameters.m, Returns the ROSETTA textural class average hydraulic parameters for the van Genuchten-Mualem model.
  • GreenAmptPar.m, Returns hydraulic parameters needed for the Green and Ampt (1911) infiltration model based on user-specified soil textural class.
  • GreenAmpt.m, Applies the Green and Ampt (1911) infiltration model.
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