GMS:MF6 OC Package

The Output Control (OC) Dialog

The Output Control (OC) Package dialog is accessed by double-clicking on the OC package under a MODFLOW 6 simulation in the Project Explorer. It contains the following sections and options:

• Sections list – A list of sections that can be turned on or off:
  • Comments – Turn on to make the Comments section visible.
  • Options – Turn on to make the Options section visible.
  • Periods – Turn on to make the Periods section visible. This section is on by default.
• Comments section – Enter general alphanumeric comments. Comments entered here get written at the top of the file, preceded by a '#' symbol.
• Options section contains the following:
  • BUDGET FILEOUT: – Allows the specification of a file to which desired flow terms will be written.
  • HEAD FILEOUT: – Output file to write head information.
  • HEAD PRINT_FORMAT: – When turned on, allows you to specify the format to print to the listing file. Options include:
    • "GENERAL" – Prints in the general format to the listing file
    • "EXPONENTIAL" – Prints in exponential format to the listing file.
    • "FIXED" – Prints in a fixed format to the listing file.
    • "SCIENTIFIC" – Prints in a scientific format to the listing file.
  • COLUMNS – The number of columns for writing data.
  • WIDTH – The width used to write each number
  • DIGITS – The number of digits used for writing each number.
• Periods section – Contains the following:
  • Add Rows – Click to bring up the GMS dialog and input values into the layer, row, column, and Q table found in the Periods section.
  • Preset output – Allows choosing which time periods you wish to output information. Options include:
    • "At every time step" – Output information at every time step.
    • "At last time step of each stress period" – Output information at the last time step of each stress period.
    • "User specified" – Allows user to choose the output settings manually which are entered into a given table.
  • 'Table – Contains the following options:
    • PERIOD – Indicates for which PERIOD the information will be saved.
    • PRINT/SAVE – Indicates which stress period the information will be printed or saved on.
    • RTYPE – This is the type of information (BUDGET/HEAD) to save or print.
    • OCSETTING – Indicates which steps the data will be saved for.
    • FREQUENCY/STEPS – Indicates which time step frequency or STEPS for which information will be saved.

Related Topics

• MODFLOW 6