The first two input fields in the Aquifer pathway A transport pathway element that is intended to represent a feature that essentially behaves as a fluid conduit. Internally, an Aquifer pathway actually performs its computations by creating a temporary set of linked Cell elements during the simulation. dialog describe the overall geometry of the pathway.
Length: This is the length of the pathway. Note that the length can change dynamically to represent processes such as erosion.
Area: This is the total cross-sectional area of the pathway. If an infill medium is specified, it fills the area.
Note: If a non-zero Source Zone Length is defined, the Aquifer Length and Area must be static (cannot change dynamically).