This section describes the groundwater modelling tools that are available in Source, namely the: 

• Groundwater Numerical Model for 1-Dimensional Flow - GN1D
• Groundwater Analytical Tool - GAT

The groundwater tools are available on Storage Routing Link Routing. Right clicking on the Groundwater menu item in the Link Editor displays the available groundwater models.

The Saturated Numerical Model refers to the GN1D model, while the Flux Input, Heads Input, Saturated Analytical Model and Unsaturated Connection Model are components of the GAT toolbox.