The MODFLOW Packages and Programs dialog box is used to specify non-spatial input required by the various MODFLOW packages, MODPATH, ZONEBUDGET, and MT3DMS. To display the MODFLOW Packages and Programs dialog box, select Model|MODFLOW Packages and Programs... The "Parameters" used by the various packages, the choice of solver used to solve the equations in MODFLOW, and the convergence criterion in the Lake package are among the items specified in the MODFLOW Packages and Programs dialog box.
The left side of the MODFLOW Packages and Programs dialog box has a tree control that shows the MODFLOW packages supported by ModelMuse. Next to the name of each package is either a radio button or a checkbox. A package will be included in the MODFLOW model if its checkbox or radio button is checked. The data for each package will be shown in the pane on the right side of the MODFLOW Packages and Programs dialog box when its name is selected.
In many cases, the full name of a package will be too long to be fully displayed in the tree control. However, when a mouse is held over the portion of the name that is visible, the full name will be displayed in a small popup window. In addition, the width of the tree control can be changed by clicking on the area just to the right of the tree control and dragging it so that the width of the tree becomes larger or by resizing the entire dialog box.
For most packages, MODFLOW will accept comments at the beginning of the input file and will then print them in the output file. Even for those package that do not have this capability, such as the Lake package, ModelMuse provides a space to write such comments. Such comments can be useful for documenting why particular values in the input were selected.
The Gage package is not activated in the MODFLOW Packages and Programs dialog box. Instead, if any gages are defined in the SFR or LAK packages, the Gage package will be activated.
For more information about particular package, see the links below.
BCF6: Block-Centered Flow package
LPF: Layer Property Flow package
HUF2: Hydrogeologic Unit Flow package
UPW: Upstream Weighting package
NPF: Node Property Flow package
TVK: Time-Varying Hydraulic Conductivity package
TVS: Time-Varying Storage package
GNC: Ghost-Node Correction package
HFB: Horizontal Flow Barrier package
UZF: Unsaturated-Zone Flow package
SWI2: Seawater Intrusion package
CHD: Time-Variant Specified Head package
FHB: Flow and Head Boundary package
FHB: Flow and Head Boundary package
ETS: Evapotranspiration Segments package
EVT: Evapotranspiration package
GHB: General Head Boundary package
LAK: Lake package for MODFLOW 6
MAW: Multi-Aquifer Well package
MNW1: Multi-Node Well package (Version 1) Pane
RIP: Riparian Evapotranspiration package
SFR: Stream-Flow Routing package
SFR: MODFLOW-6 Streamflow Routing package
UZF6: Unsaturated-Zone Flow package for MODFLOW 6
PCG: Preconditioned Conjugate Gradient package
PCGN: Preconditioned Conjugate Gradient Solver with Improved Nonlinear Control
GMG: Geometric Multigrid Solver
SIP: Strongly Implicit Procedure package
IMS: Iterative Model Solution package
SUB: Subsidence and Aquifer-System Compaction package
SWT: Subsidence and Aquifer-System Compaction Package for Water-Table Aquifers
CSUB: Skeletal Storage, Compaction, and Subsidence Package Pane
HOB: Head Observations package
CHOB: Specified-Head Flow Observation package
DROB: Drain Observation package
GBOB: General-Head-Boundary Observation package
RVOB: River Observation package
STOB: Stream Observation package
OBS: Observation Utility package
Conduit Flow Process
Surface-Water Routing Process
SWR: Surface-Water Routing Process
Farm Process Pane (for MODFLOW-OWHM Version 1)
Farm Process (for MODFLOW-OWHM Version 2)
GWT:Groundwater Transport Process
SSM: GWT Source and Sink Mixing Package
CNC: GWT Constant Concentration Package
SRC: GWT Mass Source Loading Package
MST: Mobile Storage and Transfer Package
IST: Immobile Storage and Trasfer Package
IMS: Iterative Model Solution Package
SSM: Sink & Source Mixing package
RCT: Chemical Reactions package
GCG: Generalized Conjugate Gradient package
TOB: Transport Observation package
CTS: Contaminant Treatment Systems package
SFT: Stream Flow Transport Package
UZT: Unsaturated-Zone Transport package
