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1. CFITIM Model: Estimates parameters in several equilibrium and non-equilibrium transport models from solute breakthrough curves [USDA_ARS_CFITIM]
Traditionally, a two-parameter partial differential equation has been used to describe the one-dimensional convective-dispersive equilibrium transport of chemicals in field soils. The parameters in ...

2. CHEMFLO - A Model to Simulate Water Movement and Chemical Transport in Unsaturated Soils [LSC_CHEMFLO]
CHEMFLO enables users to simulate water movement and chemical transport in unsaturated soils by solving the Richards equation (water) and the convection-dispersion equation (chemicals). ...

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