GMS:MODFLOW Commands

The MODFLOW menu becomes active once the MODFLOW model has been built in GMS. The menu has two submenus: Optional Packages and Advanced. The commands in the MODFLOW menu are listed below:

• New Simulation...

  Creates a new MODFLOW simulation and brings up the Global Options/Basic Package dialog. If a simulation exists then the current one will be deleted and a new one will be made.

• Delete Simulation...

  Deletes the current MODFLOW simulation.

• Check Simulation...

  Brings up the Model Checker dialog. This generates a list of possible errors and warning messages in the top scrolling window.

• Run MODFLOW...

  Initiates the MODFLOW executable. GMS will ask if you would like to save your work before running the executable.

• Read Solution...

  Opens a window for the user to search for a previous MODFLOW solution.

• Flow Budget...

  Shows the model's flow budget as one zone (default) or multiple user defined zones.

• Global Options...

  Opens the MODFLOW Global/Basic Package dialog to set up a MODFLOW simulation.

• BCF – Block Centered Flow...

  Opens the MODFLOW Block Centered Flow Package dialog. See BCF Package to learn more.

• PCG2 – Pre. Conj.-Gradient Solver...

  Opens the MODFLOW PCG2 Package solver dialog for the selected solver. (May not be PCG2)

• OC – Output Control...

  Opens an output dialog for the user to chose what comes out of a MODFLOW run.

• Optional Packages >
  • CHD – Time-Variant Specified-Head...

    Starts the MODFLOW Time Var. Head Package dialog. See CHD Package to learn more.

  • DRN – Drain Package...

    Opens the MODFLOW Drain Package dialog. See DRN Package for more information.

  • DRT – Drain Return Package...

    Brings up the MODFLOW Drain return Package dialog. To learn more, see DRT Package.

  • EVT – Evapotranspiration...

    Launches the MODFLOW EVT Package dialog. See EVT Package to learn more.

  • Evapotranspiration Segment (ETS) Package... ||
  • GAGE – Gage...

    Starts the MODFLOW GAGE Package dialog. See GAGE Package to learn more.

  • GHB – General Head Package

    Opens the MODFLOW General Head Package dialog. For more information, see GHB Package.

  • HFB – Horizontal Flow Barrier... ||
  • LAK – Lake Package...

    Launches the MODFLOW Lake Package dialog. See LAK Package for more information.

  • MNW1 – Multi-Node Well...

    Brings up the Multi-Node Well (MNW1) Package dialog. To learn more, see [[MNW1 Package.

  • MNW2 – Multi-Node Well...

    Brings up the Multi-Node Well (MNW2) Package dialog. This package is an updated version of the MNW1 Package. To learn more, see [[MNW2 Package.

  • RCH – Recharge...

    Starts the MODFLOW Recharge Package dialog. See RCH Package for more information.

  • RIV – River...

    Opens the MODFLOW River Package dialog. To learn more, see RIV Package.

  • PEST ASP...

    Opens the PEST-ASP Options dialog. See PEST ASP Package for more information.

  • SFR2 – Streamflow-Routing...

    Brings up the MODFLOW Streamflow-Routing Package dialog. To learn more, see STR/SFR Packages.

  • STR – Stream...

    Launches the MODFLOW Stream Package dialog. See STR/SFR Packages to learn more.

  • SUB – Subsidence...
  • Unsaturated Zone (UZF) Package... ||
  • WEL – Well...

    Opens the Well Package dialog. To learn more, see WEL Package.

• Parameters...

  Brings up a Parameters dialog. Options available in this dialog will vary. To learn more, see Standard MODFLOW Parameters.

• Obervations...

  Opens an Observations dialog. See Observations for more information.

• Parameter Estimation...

  Becomes available when Stochastic or Stochastic Inverse is selected as the Run Options in the MODFLOW Global/Basic Package dialog. To learn more, see Parameter Estimation Dialog.

• Stochastic...

  Becomes available when Stochastic or Stochastic Inverse is selected as the Run Options in the MODFLOW Global/Basic Package dialog. The command brings up the Stochastic Options dialog. See Stochastic Options Dialog for more information.

• Advanced >
  • Export Native MF2K Text...

    Creates native MODFLOW files from existing GMS MODFLOW-with-hdf5 files.

  • Display Options...

    Opens the Display Options dialog showing the MODFLOW tab.

  • Sources/Sinks...

    Launches the MODFLOW Source/Sinks dialog. For more information see, MODFLOW Source/Sink Dialog.

  • Toggle Barrier

    Creates a "no flow boundary" between two adjacent selected cells.

  • Cell Properties...

    Brings up the 3D Grid Cell Properties dialog. For more information, see Cell Properties.

  • IFACE...

    Opens the MODPATH IFACE dialog.

  • ITOP...

    Brings up the MODPATH ITOP dialog.

Obsolete Commands

The following commands have been removed from the MODFLOW menu the most recent versions of GMS.

• LPF Package...

  Opens the flow dialog to insert hydrologic parameters. (May not be LPF)

• Convergence Options...

  See the PEST-ASP... command.

Related Topics

• MODFLOW