Data Sets Required by MT3DMS or MT3D-USGS |
Data Sets Required by MT3DMS or MT3D-USGS |
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Porosity |
Specifies the porosity. |
Basic |
PRSITY |
Always |
Longitudinal_Dispersivity |
Specifies the longitudinal dispersivity. |
Dispersion |
AL |
When the Dispersion package is used |
Cell containing anobservation point for which the concentration is to be printed at every transport step in file MT3Dnnn.OBS |
Basic |
Data Sets 18 and 19 |
Always |
|
MT3DMS_Active |
Indicates whether a cell is active in MT3DMS or not. Not all active MODFLOW cells are required to be active MT3DMS cells. |
Basic |
ICBUND |
Always |
Bulk_Density |
the bulk density of the aquifer medium |
Chemical Reaction |
RHOB |
When the chemical reaction package is used and the sorption choice is Linear, Freundlich, Langmuir, first order kinetic, or dual domain with sorption |
Immobile_Domain_Porosity |
the porosity of the immobile domain, i.e., the ratio of pore spaces filled with immobile fluids over the bulk volume of the aquifer medium, when the simulation is intended to represent a dual-domain system |
Chemical Reaction |
PRSITY2 |
When the chemical reaction package is used and dual porosity is selected. |
MT3DMS_Layer_Thickness |
The thickness of a layer |
Basic |
DZ |