GMS:MODFLOW 6 Convert MODFLOW to MODFLOW 6: Difference between revisions

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{{Version GMS 10.7}}
To convert an existing [[GMS:MODFLOW|MODFLOW]] project to [[GMS:MODFLOW 6|MODFLOW 6]], use the following steps:
To convert an existing [[GMS:MODFLOW|MODFLOW]] project to [[GMS:MODFLOW 6|MODFLOW 6]], use the following steps:



Latest revision as of 19:29, 15 November 2022

To convert an existing MODFLOW project to MODFLOW 6, use the following steps:

1. Begin with an existing MODFLOW project.
2. Create a 3D UGrid.
Create a 3D UGrid in one of the following ways:
1. Create a 3D UGrid from scratch.
  1. Right-click in the Project Explorer and select New | UGrid 3D....
  2. In the New UGrid dialog, enter the information for the X-, Y-, and Z-Dimension of the grid.
2. Create a 3D UGrid from a coverage.
  1. Right-click on the desired coverage and select the Map To | UGrid command.
  2. In the Map → UGrid dialog, set the Dimension drop-down to "3D".
  3. Enter the rest of the information for the grid, including the X-, Y-, and Z-Dimension information.
3. Create a MODFLOW 6 simulation.
Use one of the following options to create the MODFLOW 6 simulation:
1. Create a blank MODFLOW 6 simulation.
  1. Right-click in the Project Explorer and select the New Simulation | MODFLOW 6 command.
  2. In the New MODFLOW 6 Simulation dialog, select the UGrid to use and any optional packages.
  • To convert the MODFLOW simulation, make sure to select packages that correspond to the packages used in the original MODFLOW simulation.
2. Create MODFLOW 6 text files from the current simulation and import them.
  1. Select the MODFLOW | Global Options menu command.
  2. Select the Save MODFLOW 6 copy option in the MODFLOW Global/Basic Package dialog.
  3. Save Save Macro.svg the project.
  4. Use the Open Macro.svg Open macro to bring up the Open dialog.
  5. Set the Files of type drop-down to "All Files (*.*)" and navigate to the MODFLOW files ending in "mf6".
  6. Open the file called "mfsim.nam" to import the MODFLOW 6 simulation.
4. Map from the coverages to the MODFLOW 6 packages.
  1. In the Project Explorer, right-click on the package and use the Map from Coverage command.
  2. Select the desired coverage from the Select Coverage dialog to map its data to the selected package.
5. Modify inputs for MODFLOW 6 packages.
There may be some packages that need extra adjustment or that cannot be mapped from coverages. To modify them:
  1. Right-click on the package in the Project Explorer and select the Open command.
  2. Modify the inputs in the package dialog.
6. Save and check the MODFLOW 6 simulation.
  1. Save Macro.svg Save the project.
  2. Right-click on the MODFLOW 6 simulation and select the Save Simulation command.
  3. Right-click on the MODFLOW 6 simulation and select the Check Simulation command.
  4. Review any errors that appear and resolve them by repeating workflow steps 4 and 5.
7. Run MODFLOW 6.
  1. In the Project Explorer, right-click on the MODFLOW 6 simulation and Save Simulation and Run.
  2. The Simulation Run Queue dialog will appear; allow the simulation to run to completion.
  3. When the simulation has finished successfully, click Load Solution.
8. Visualize the solution.
1. Change display options.
1. Set display options.
  1. Open the Display Options Display Options Macro.svg dialog.
  2. Set the general display options.
  3. Set general lighting options.
  4. Set display options for each module that is being used.
  5. Set contour options.
  6. Set vector options.
2. View display.
  1. Use the Rotate Rotate Tool.svg, Pan Pan Tool.svg, and Zoom Zoom Tool Icon.svg tools.
  2. Use the View menu commands found in the Display menu.
  3. Use the Frame Frame Macro.svg command to center and resize the display as needed.
3. Adjust display.
Display may need to be adjusted during the remainder of the project.
  1. Use the Display Options dialog and viewing tools as needed.
  2. Use the Frame Frame Macro.svg command to center and resize the display as needed.
2. Change contour options.
  1. Turn on Contours in the Display Options dialog and set contour options. The "Color Fill" option is recommended for this.
  2. Look for inconsistent points (points with values much higher/lower than their neighbors or regions where no data points exist).
  3. Verify that the region being modeled is covered by the elevation/depth data and there are no holes.
3. Create a plot.
If a PEST Observations package was included with the model, do the following to visualize the results:
  1. Under the "Map Folder.svg Map Data", find the coverages labelled with PEST.
  2. Click on them to visualize whisker plots in the Graphics Window.
  3. Right-click on a coverage and use the Observations command to view plots related to the data in the coverages in the Observations dialog.
4. Create an animation.
  1. Select a solution dataset and use the Display | Animate menu command.
  2. Use the Animation Wizard to specify the animation parameters.
  3. Save and view the animation file.
5. Visualize water budgets.
1. Visualize the VOLUME BUDGET section of the text solution file.
  1. Double-click on a text file under the MODFLOW 6 solution folder in the Project Explorer. It might end in ".lst" or ".out".
  2. Scroll to the bottom of the file to the VOLUME BUDGET section, and review the values.
2. Run ZONEBUDGET and visualize the results.
1. Create the Zones package.
  1. Use the New Package | Zones command to open the Zone File dialog.
  2. Using the Zone File dialog, define the zones.
  3. Right-click on the MODFLOW 6 simulation and select Save Simulation to export the zone package file.
2. Run ZONEBUDGET.
  1. Under the MODFLOW solution folder in the Project Explorer, right-click on the file ending in ".cbc" and select Run ZONEBUDGET.
3. Visualize the results of ZONEBUDGET.
  1. Under the folder ending in "zone_budget", double-click on either file to open it in an outside program.
  • The file ending in ".lst" has the results of ZONEBUDGET at the bottom under a section that begins VOLUME BUDGET.
  • The file ending in ".csv" can be opened in a spreadsheet application or text editor.