Aquifer Pathway Outputs

Aquifer pathways have at least two outputs:

• Mass_in_Pathway. This is a vector A one-dimensional array. by species The chemical (or non-chemical, such as bacterial or viral) constituents that are stored and transported through an environmental system in a contaminant transport model. In GoldSim, the Species element defines all of the contaminant species being simulated (and their properties). with dimensions An output attribute for an element that defines the dimensionality (in terms of Length, Time and other fundamental dimensions) of the output. of mass. It represents the total mass of each species in the Aquifer (the sum of the mass in each Cell of the network).
• Concentration. This is a vector by species with dimensions of mass per volume. It represents the concentration of each species in the Reference Fluid A special type of Fluid element that provides a basis for defining partition coefficients between media for the various species in the model (i.e., the ratio of the species’ concentration in the medium to its concentration in the Reference Fluid at equilibrium). at the point where it exits the Aquifer (i.e., the last Cell in the network). This is a "total concentration", and includes species sorbed onto suspended solids.

In addition, for every advective mass flux link A mass flux link in which a quantity of a medium is specified to flow from one pathway to another, carrying dissolved, sorbed, and/or suspended species with it. in which the Aquifer is the Outflow (upstream) pathway, an output is created on the Aquifer:

• Medium_to_Path2, where Medium is the name of the flowing medium, and Path2 is the name of the linked (Inflow) pathway. This is a vector by species, and has dimensions of mass/time. It represents the mass flux of each species from the Aquifer to the downstream pathway.

It is important to understand that the mass flux outputs from an Aquifer represent the mass rate over the previous timestep A discrete interval of time used in dynamic simulations.. This can have implications if you choose to integrate one of these outputs (using an Integrator).