MODAEM Project Workflow

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This is a top level workflow. This workflow includes all of the specific workflows needed in creating a general MODAEM project Newer and infrequent GMS users should start here.

To build a MODAEM model in GMS, use the following steps:

1. Start GMS.
1. Start GMS, or clear existing projects in GMS.
  1. If GMS is already running, select File | New.
  2. A new project can also be started by clicking New New Macro.svg.
2. If necessary, register or update GMS.
1. Register GMS and components.
  1. Launch the GMS Registration Wizard.
    • The option to register is given when opening an unregistered version of GMS.
    • Use the Help | Register command to change registration options using the Register dialog.
  2. Follow the Registration Wizard instructions.
  3. Review the registered components in the Register dialog.
2. Update GMS.
GMS can be updated by doing any of the following:
  1. Select Download if prompted to update when starting GMS.
  2. Select Help | Check for Updates.
  3. Go directly to the GMS download page.
3. Set the display projection.
  1. Select the Edit | Units... command.
  2. In the Units dialog, set the time, mass, force, and concentration.
  3. Click the Dot dot dot button.png button and set the horizontal and vertical projection in the Display Projection dialog.
  4. If necessary, use the Horizontal Projection dialog to set a global projection.
2. Import data.
1. Gather and open image files.

Images are imported into the GIS module in GMS.

1. Open local images.
  1. Load images from local computer files using the File | Open... command.
  2. Alternatively, drag and drop the file into the Graphics Window in GMS.
2. Import images from the web.
  1. Use the Add Online Maps Add Online Maps Icon.svg macro.
  2. Select a location in the Virtual Map Locator.
  3. If a projection has not been set for the project, set a new project in the Display Projection dialog.
  4. Use the Data Service Options dialog to select a web service or catalog.
2. Gather and open geometric data files.
1. Import map data.
  1. Use the File | Open... command to import map data such as Map files, boundary ID files, or boundary XY files.
  2. Alternately, drag and drop the file into the Graphics Window in GMS.
2. Import GIS data.
  1. Use the File | Open... command to import GIS data files such as Shapefiles or raster files.
  2. Alternatively, drag and drop the file into the Graphics Window in GMS.
3. Import scatter data.
  1. Use File | Open... to open files with scatter data.
    • Alternatively, drag and drop the file into the Graphics Window in GMS.
  2. Use the File Import Wizard to specify how to import the data.
4. Import CAD data.
  1. Verify the CAD file type is readable by GMS before importing it. GMS can import DXF and DWG files.
  2. Use the File | Open... command to launch the Open dialog (or drag and drop) to import the CAD files.
The data should load in layers into the Project Explorer.
5. Review and set object projections.
  1. Right-click on an object in the Project Explorer and select the Projection | Projection command.
  2. Set the horizontal and vertical projection using the Object Projection dialog.
  3. To set a global projection, use the Horizontal Projection dialog.
3. Gather hydrologic data files.
  1. Gather data files for hydrologic and hydraulic data. These include data such as hydrographs, water levels, and rating curves. They will be imported when setting boundary conditions and when doing model calibration.
3. Define the project boundaries.
1. Create a new conceptual model.
Create a new conceptual model with the "MODAEM" type.
1. Create new conceptual model.
  1. Use the New Conceptual Model right-click command in the Project Explorer.
  2. Use the Conceptual Model Properties dialog to create a new conceptual model.
2. Add coverages.
1. Create new coverage from scratch.
  1. Use the New Coverage right-click command.
  2. Use the Coverage Setup dialog to create a new coverage by selecting the desired coverage properties and naming the coverage.
2. Create new coverage from an existing coverage.
  1. Use the Duplicate command on an existing coverage. This will copy any feature objects on the coverage.
  2. Use the Rename command to give the coverage a new name.
  3. Change the coverage setup.
2. Create the boundary arc.
1. Create feature points, arcs, nodes and vertices.
In the map module, create feature objects in the active coverage.
  1. Use the Create Arc GMS Create Arc Tool.svg tool to create arcs in the map coverage.
  2. Begin creating a new arc by clicking in the graphics window at either arc end. If clicking on an existing feature node, vertex or arc, the new arc will snap to that object.
  3. Double-click or press the Enter key to terminate the arc.
  4. Use the Create Point/Node Create Points Tool.svg tool to create additional nodes alone or to split arcs.
2. Modify arcs.
Feature arcs, whether digitized or incorporated from a boundary condition or a material coverage, often need to be edited after initial creation.
1. Create additional vertices on arcs.
  1. Use the Create Vertex GMS Create Vertex.svg tool to add vertices along arcs.
2. Refine the arc shape.
  1. Use the Select Vertex GMS Select Vertex Tool.svg tool and the Select Node GMS Select Node Tool.svg tool to move/edit existing arcs and refine the shape by dragging the nodes/vertices.
  2. Use the Select Arc GMS Select Arc Tool.svg tool to move entire arcs .
3. Split arcs.
An existing arc can be split by:
1. Converting a vertex to a node.
  1. Use the Select Vertex GMS Select Vertex Tool.svg tool.
  2. Select the Feature Objects | Vertices → Node command to split the arc into two arcs.
2. Add a node the arc.
  1. Use the Create Point/Node Create Points Tool.svg tool to add a node on an arc in order to split it into two arcs.
3. Connect the end of an existing arc to the middle of the arc.
  1. Use the Select Node GMS Select Node Tool.svg tool to drag the node of an existing arc to anywhere in the middle of another arc. This will split the second arc into two arcs.
4. Add a new connecting arc.
  1. Use the Create Arc GMS Create Arc Tool.svg tool to start or end a new arc on an existing arc to split the existing arc into two arcs.
5. Split overlapping arcs using the Clean Options dialog.
  1. Select overlapping arcs using the Select Arc GMS Select Arc Tool.svg tool.
  2. Use the Feature Objects | Clean command to bring up the Clean Options dialog.
  3. Select the Intersect selected arcs option (for selected arcs) or Intersect arcs option (for all overlapping arcs) to split the arcs.
4. Merge arcs.
Two arcs that share an end node can be merged together.
  1. Select the shared node using the Select Point/Node GMS Select Node Tool.svg tool.
  2. Click on the Feature Objects | Nodes → Vertices menu command to merge the arcs.
  3. If desired, the Select Vertex GMS Select Vertex Tool.svg tool can be used to select and delete the new vertex.
5. Transform arcs.
  1. Select the arc using the Select Arc GMS Select Arc Tool.svg tool.
  2. Use the Edit | Transform command.
  3. Use the Transform dialog to scale, translate or rotate the arc.
4. Create specified head arcs.
1. Assign arcs as head arcs.
  1. Using the Select Arc GMS Select Arc Tool.svg tool, select head arcs.
  2. Select the Properties GMS Properties Macro.svg macro button.
  3. Assign head properties in the Attribute Table dialog.
2. Assign properties to head arc nodes.
  1. Using the Select Points/Nodes GMS Select Node Tool.svg tool, select nodes on head arcs.
  2. Select the Properties GMS Properties Macro.svg macro button.
  3. Assign head properties in the Attribute Table dialog.
5. Enter the aquifier properties.
  1. Select the MODAEM | Global Options command.
  2. Set aquifier properties in the MODAEM Global Options dialog.
6. Create a river. (optional)
1. Create a new coverage.
Create a new coverage with the River option selected.
1. Create new coverage from scratch.
  1. Use the New Coverage right-click command.
  2. Use the Coverage Setup dialog to create a new coverage by selecting the desired coverage properties and naming the coverage.
2. Create new coverage from an existing coverage.
  1. Use the Duplicate command on an existing coverage. This will copy any feature objects on the coverage.
  2. Use the Rename command to give the coverage a new name.
  3. Change the coverage setup.
2. Create the stream arc.
1. Create feature points, arcs, nodes and vertices.
In the map module, create feature objects in the active coverage.
  1. Use the Create Arc GMS Create Arc Tool.svg tool to create arcs in the map coverage.
  2. Begin creating a new arc by clicking in the graphics window at either arc end. If clicking on an existing feature node, vertex or arc, the new arc will snap to that object.
  3. Double-click or press the Enter key to terminate the arc.
  4. Use the Create Point/Node Create Points Tool.svg tool to create additional nodes alone or to split arcs.
2. Modify arcs.
Feature arcs, whether digitized or incorporated from a boundary condition or a material coverage, often need to be edited after initial creation.
1. Create additional vertices on arcs.
  1. Use the Create Vertex GMS Create Vertex.svg tool to add vertices along arcs.
2. Refine the arc shape.
  1. Use the Select Vertex GMS Select Vertex Tool.svg tool and the Select Node GMS Select Node Tool.svg tool to move/edit existing arcs and refine the shape by dragging the nodes/vertices.
  2. Use the Select Arc GMS Select Arc Tool.svg tool to move entire arcs .
3. Split arcs.
An existing arc can be split by:
1. Converting a vertex to a node.
  1. Use the Select Vertex GMS Select Vertex Tool.svg tool.
  2. Select the Feature Objects | Vertices → Node command to split the arc into two arcs.
2. Add a node the arc.
  1. Use the Create Point/Node Create Points Tool.svg tool to add a node on an arc in order to split it into two arcs.
3. Connect the end of an existing arc to the middle of the arc.
  1. Use the Select Node GMS Select Node Tool.svg tool to drag the node of an existing arc to anywhere in the middle of another arc. This will split the second arc into two arcs.
4. Add a new connecting arc.
  1. Use the Create Arc GMS Create Arc Tool.svg tool to start or end a new arc on an existing arc to split the existing arc into two arcs.
5. Split overlapping arcs using the Clean Options dialog.
  1. Select overlapping arcs using the Select Arc GMS Select Arc Tool.svg tool.
  2. Use the Feature Objects | Clean command to bring up the Clean Options dialog.
  3. Select the Intersect selected arcs option (for selected arcs) or Intersect arcs option (for all overlapping arcs) to split the arcs.
4. Merge arcs.
Two arcs that share an end node can be merged together.
  1. Select the shared node using the Select Point/Node GMS Select Node Tool.svg tool.
  2. Click on the Feature Objects | Nodes → Vertices menu command to merge the arcs.
  3. If desired, the Select Vertex GMS Select Vertex Tool.svg tool can be used to select and delete the new vertex.
5. Transform arcs.
  1. Select the arc using the Select Arc GMS Select Arc Tool.svg tool.
  2. Use the Edit | Transform command.
  3. Use the Transform dialog to scale, translate or rotate the arc.
3. Add stream properties.
1. Assign arcs as rivers.
  1. Using the Select Arc GMS Select Arc Tool.svg tool, select river arcs.
  2. Select the Properties GMS Properties Macro.svg macro button.
  3. Assign river properties in the Attribute Table dialog.
2. Assign properties to river arc nodes.
  1. Using the Select Points/Nodes GMS Select Node Tool.svg tool, select nodes on river arcs.
  2. Select the Properties GMS Properties Macro.svg macro button.
  3. Assign river properties in the Attribute Table dialog.
7. Add recharge properties. (optional)
1. Create a new coverage.
Create a new coverage with the Recharge option selected.
1. Create new coverage from scratch.
  1. Use the New Coverage right-click command.
  2. Use the Coverage Setup dialog to create a new coverage by selecting the desired coverage properties and naming the coverage.
2. Create new coverage from an existing coverage.
  1. Use the Duplicate command on an existing coverage. This will copy any feature objects on the coverage.
  2. Use the Rename command to give the coverage a new name.
  3. Change the coverage setup.
2. Create a polygon in the recharge area.
1. Create enclosed arcs for polygon areas.
1. Create feature points, arcs, nodes and vertices.
In the map module, create feature objects in the active coverage.
  1. Use the Create Arc GMS Create Arc Tool.svg tool to create arcs in the map coverage.
  2. Begin creating a new arc by clicking in the graphics window at either arc end. If clicking on an existing feature node, vertex or arc, the new arc will snap to that object.
  3. Double-click or press the Enter key to terminate the arc.
  4. Use the Create Point/Node Create Points Tool.svg tool to create additional nodes alone or to split arcs.
2. Modify arcs.
Feature arcs, whether digitized or incorporated from a boundary condition or a material coverage, often need to be edited after initial creation.
1. Create additional vertices on arcs.
  1. Use the Create Vertex GMS Create Vertex.svg tool to add vertices along arcs.
2. Refine the arc shape.
  1. Use the Select Vertex GMS Select Vertex Tool.svg tool and the Select Node GMS Select Node Tool.svg tool to move/edit existing arcs and refine the shape by dragging the nodes/vertices.
  2. Use the Select Arc GMS Select Arc Tool.svg tool to move entire arcs .
3. Split arcs.
An existing arc can be split by:
1. Converting a vertex to a node.
  1. Use the Select Vertex GMS Select Vertex Tool.svg tool.
  2. Select the Feature Objects | Vertices → Node command to split the arc into two arcs.
2. Add a node the arc.
  1. Use the Create Point/Node Create Points Tool.svg tool to add a node on an arc in order to split it into two arcs.
3. Connect the end of an existing arc to the middle of the arc.
  1. Use the Select Node GMS Select Node Tool.svg tool to drag the node of an existing arc to anywhere in the middle of another arc. This will split the second arc into two arcs.
4. Add a new connecting arc.
  1. Use the Create Arc GMS Create Arc Tool.svg tool to start or end a new arc on an existing arc to split the existing arc into two arcs.
5. Split overlapping arcs using the Clean Options dialog.
  1. Select overlapping arcs using the Select Arc GMS Select Arc Tool.svg tool.
  2. Use the Feature Objects | Clean command to bring up the Clean Options dialog.
  3. Select the Intersect selected arcs option (for selected arcs) or Intersect arcs option (for all overlapping arcs) to split the arcs.
4. Merge arcs.
Two arcs that share an end node can be merged together.
  1. Select the shared node using the Select Point/Node GMS Select Node Tool.svg tool.
  2. Click on the Feature Objects | Nodes → Vertices menu command to merge the arcs.
  3. If desired, the Select Vertex GMS Select Vertex Tool.svg tool can be used to select and delete the new vertex.
5. Transform arcs.
  1. Select the arc using the Select Arc GMS Select Arc Tool.svg tool.
  2. Use the Edit | Transform command.
  3. Use the Transform dialog to scale, translate or rotate the arc.
2. Build polygons in enclosed areas.
Polygons are not created automatically when arcs are enclosed. To create polygons:
  1. Use the Feature Objects | Build Polygons command.
3. Add recharge properties.
  1. Select the recharge polygon using the Select Polygon GMS Select Polygon Tool.svg tool.
  2. Select the Properties GMS Properties Macro.svg macro button.
  3. Assign recharge properties in the Attribute Table dialog.
8. Run MODAEM.
  1. Select the MODAEM | Solve menu command.
    • Note: MODAEM does not require saving the project before being run. It is still recommended to save the project.
9. 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.
1. Start the plot wizard.
  1. Select the Display | Plot Wizard menu command.
2. Select available plot type.
1. Computed vs. Observed Data plots.
1. Computed vs. Observed Data.
  1. Select Display | Plot Wizard to start the Plot Wizard.
  2. Select the "Computed vs. Observed Data" option on the left and click Next.
  3. Specify plot options in step 2 of the Plot Wizard then click Finish.
  4. Review plot window.
2. Computed vs. Observed Data (Weighted).
  1. Select Display | Plot Wizard to start the Plot Wizard.
  2. Select the "Computed vs. Observed Data (Weighted)" option on the left and click Next.
  3. Specify plot options in step 2 of the Plot Wizard then click Finish.
  4. Review plot window.
2. Residual vs. Observed Data plots.
1. Residual vs. Observed Data.
  1. Select Display | Plot Wizard to start the Plot Wizard.
  2. Select the "Residual vs. Observed" option on the left and click Next.
  3. Specify plot options in step 2 of the Plot Wizard then click Finish.
  4. Review plot window.
2. Residual vs. Observed Data (Weighted).
  1. Select Display | Plot Wizard to start the Plot Wizard.
  2. Select the "Residual vs. Observed (Weighted)" option on the left and click Next.
  3. Specify plot options in step 2 of the Plot Wizard then click Finish.
  4. Review plot window.
3. Parameter Sensitivity plot.
  1. Select Display | Plot Wizard to start the Plot Wizard.
  2. Select the "Parameter Sensitivity" option on the left and click Next.
  3. Specify plot options in step 2 of the Plot Wizard then click Finish.
  4. Review plot window.
4. Error vs. Simulation plot.
  1. Select Display | Plot Wizard to start the Plot Wizard.
  2. Select the "Error vs. Simulation" option on the left and click Next.
  3. Specify plot options in step 2 of the Plot Wizard then click Finish.
  4. Review plot window.
5. Error vs. Time Step plot.
  1. Select Display | Plot Wizard to start the Plot Wizard.
  2. Select the "Error vs. Time Step" option on the left and click Next.
  3. Specify plot options in step 2 of the Plot Wizard then click Finish.
  4. Review plot window.
6. Error Summary plot.
  1. Select Display | Plot Wizard to start the Plot Wizard.
  2. Select the "Error Summary" option on the left and click Next.
  3. Specify plot options in step 2 of the Plot Wizard then click Finish.
  4. Review plot window.
7. Time Series plot.
  1. Select Display | Plot Wizard to start the Plot Wizard.
  2. Select the "Time Series" option on the left and click Next.
  3. Specify plot options in step 2 of the Plot Wizard then click Finish.
  4. Review plot window.
8. Active Dataset Time Series plot.
  1. Select a dataset in Project Explorer.
  2. Select cells in the project.
  3. Select Display | Plot Wizard to start the Plot Wizard.
  4. Select the "Active Dataset Time Series" option on the left and click Next.
  5. Specify plot options in step 2 of the Plot Wizard then click Finish.
  6. Review plot window.
9. S/S Flow vs. Time plot.
  1. Select Display | Plot Wizard to start the Plot Wizard.
  2. Select the "S/S Flow vs. Time" option on the left and click Next.
  3. Specify plot options in step 2 of the Plot Wizard then click Finish.
  4. Review plot window.
10. Flow Budget vs. Time plot.
  1. Select Display | Plot Wizard to start the Plot Wizard.
  2. Select the "Flow Budget vs. Time" option on the left and click Next.
  3. Specify plot options in step 2 of the Plot Wizard then click Finish.
  4. Review plot window.
11. Gage Package Value vs. Time plot.
  1. Select Display | Plot Wizard to start the Plot Wizard.
  2. Select the "Gage Package Value vs. Time" option on the left and click Next.
  3. Specify plot options in step 2 of the Plot Wizard then click Finish.
  4. Review plot window.
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. Review the zone and flow budgets.
  1. Select MODFLOW | Flow Budget....
  2. Review the flow data on the Cells and Zones tabs in the Flow Budget dialog.
  3. Generate water budget data on the USGS ZONEBUDGET tab.