Estimating Water Retention and Infiltration Model Parameters using Experimental Data
Brook-Corey water retention model
Campbell water retention model
A Green-Ampt water infiltration model
Determine starting values for nonlinear parameter estimation in the wa...
Exponential water retention model
McKee and Bumb water retention model
A Russo water retention model
A Fredlund-Xing water retention model
'Gardner' Water Retention Model for Grouped Data
A Gardner water retention model
A Horton water infiltration model
A Kosugi water retention model
'Omuto' Water Retention Model
A Philip's water infiltration model
A five-parameter van Genuchten water retention model
A four-parameter van Genuchten water retention model
A Tani water retention model
Contains functions for estimating the parameters of infiltration and water retention models using the curve-fitting methods as discussed in Omuto and Gumbe (2009) ("Estimating water infiltration and retention characteristics using a computer program in R"<doi:10.1016/j.cageo.2008.08.011>). The models considered are those that are commonly used in soil science. Version 2 of the package has new models for water retention characteristic curves.