characteristics Ogata and University of ATRANS, as MODFLOW / Banks (1961) Illinois Code, described by MT3DMSv5.3 Scheibe (2004) Zheng and Bennett (2002) Definition of model domain, boundary conditions, and sources and sinks Extent of Aquifer Semi-infinite 1D 1D, 2D, 3D Semi-infinite 2D, 3D domain, 3D Confined Unconfined or (vertically confined bounded) Boundary Conditions Continuous Instantaneous Four different Complex input type of inflow boundary concentration conditions of any Line or plane Plane source histories type source Source/Sink Terms No No No Yes Primary simulation parameters (allowing for high-end scenarios) Flow 1D 1D, 2D, 3D 1D 3D Head distribution Dispersion longitudinal 3D 3D 3D Retardation No Yes Yes Yes Chemical Yes Yes Yes Yes concentrations at ADE ADE ADE ADE particular points Spatial distribution of Yes Yes Yes Yes chemical ADE ADE ADE ADE concentration in groundwater Travel time from No No No Yes (MODPATH) source to receptors (groundwater wells, springs, discharge zones in river alluvium). Main aquifer and model properties Key transport Yes Yes Yes Yes parameters Hydraulic Pre-defined Pre-defined Pre-defined Defined for conductivity MODFLOW Hydraulic gradient Pre-calculated Pre-calculated Pre-calculated Calculated in MODFLOW Effective porosity Pre-defined Pre-defined Pre-defined Defined in MODFLOW and MT3DMS
characteristics Ogata and Banks (1961) University of Illinois Code, Scheibe (2004) ATRANS, as described by Zheng and Bennett (2002) MODFLOW / MT3DMSv5.3 Definition of model domain, boundary conditions, and sources and sinks Extent of Aquifer Semi-infinite 1D 1D, 2D, 3D Semi-infinite domain, 3D Confined (vertically bounded) 2D, 3D Unconfined or confined Boundary Conditions Continuous Plane source Instantaneous input Line or plane source Four different type of inflow concentration histories Complex boundary conditions of any type Source/Sink Terms No No No Yes Primary simulation parameters (allowing for high-end scenarios) Flow 1D 1D, 2D, 3D 1D 3D Head distribution Dispersion longitudinal 3D 3D 3D Retardation No Yes Yes Yes Chemical concentrations at particular points Yes ADE Yes ADE Yes ADE Yes ADE Spatial distribution of chemical concentration in groundwater Yes ADE Yes ADE Yes ADE Yes ADE Travel time from source to receptors (groundwater wells, springs, discharge zones in river alluvium). No No No Yes (MODPATH) Main aquifer and model properties Key transport parameters Yes Yes Yes Yes Hydraulic conductivity Pre-defined Pre-defined Pre-defined Defined for MODFLOW Hydraulic gradient Pre-calculated Pre-calculated Pre-calculated Calculated in MODFLOW Effective porosity Pre-defined Pre-defined Pre-defined Defined in MODFLOW and MT3DMS
technical-report-number-06-lit-rev-identification-potential-pathways.docx