3dade is a FORTRAN computer program, which is used to evaluate a series of analytical solutions of the three-dimensional convection dispersion equation. The analytical solution has stable unidirectional flow in porous media with uniform flow and transport characteristics. The transport equation includes the transport of solute by convection and dispersion, as well as solute delay, first-order decay and zero order production. The 3dade code can be used to directly solve some problems, that is, centralized calculation of time and space functions as specified model parameters, and indirect (inverse) problems, in which the program estimates the selected parameters by fitting one of the specified analytical solutions.

HYDRUS-1D model is a finite element model, which is used to simulate the one-dimensional motion of water, heat and multiple solutes in variable saturated media. The model solves Richards' saturated unsaturated water flow and Fickian based advection dispersion equations of heat and solute transport.

SPARE:WATER It is a spatial decision support system for estimating water consumption of agricultural production system. It is a stand-alone software application that integrates a database for mathematical models and graphical user interfaces (GUIs) for estimating crop water requirements. The software realizes the function of GIS, which is used to manage spatial data based on open source spatial database.

One dimensional River Stuart model