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... Time Var. Head (CHD) Package...
  • Drain (DRN) Package... ||
  • Drain Return (DRT) Package... ||
  • Evapotranspiration (EVT) Package... ||
  • Evapotranspiration Segment (ETS) Package... ||
  • GAGE – Gage...
  • General Head (GHB) Package... ||
  • HFB – Horizontal Flow Barrier... ||
  • Lake (LAK) Package... ||
  • Multi-Node Well (MNW) Package... || Brings up the Multi-Node Well (MNW1) Package dialog.
  • Recharge (RCH) Package... || Starts the MODFLOW Recharge Package dialog.
  • River (RIV) Package... || Opens the MODFLOW River Package dialog.
  • PEST ASP...
  • Stream (SFR2) Package... ||
  • Stream (STR) Package... ||
  • SUB – Subsidence...
  • Unsaturated Zone (UZF) Package... ||
  • Well (WEL) Package... || Opens the Well Package dialog.

• Parameters...

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

• Obervations... ||
• Parameter Estimation... ||
• Stochastic...

  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... ||
  • Toggle Barrier

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

  • Cell Properties... ||
  • IFACE... ||
  • ITOP... ||

Obsolete Commands

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

• LPF Package...

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

• Convergence Options...

Related Topics

• MODFLOW