1. Begin with an existing MODFLOW 6 project.
|
- The existing MODFLOW 6 model can be created using the conceptual model or grid based approach.
|
2. Create the Stream (SFR2) coverage and arcs.
|
- While following the steps below to create a coverage, make sure to select the Stream (SFR2) option in the Coverage Setup dialog:
1. Create a new coverage with a Stream option turned on.
|
1. Create new coverage from scratch.
|
- Use the New Coverage right-click command.
- 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.
|
- Use the Duplicate command on an existing coverage. This will copy any feature objects on the coverage.
- Use the Rename command to give the coverage a new name.
- Change the coverage setup.
|
|
2. Create arcs defining the streams.
|
1. Create feature points, arcs, nodes and vertices.
|
- In the map module, create feature objects in the active coverage.
- Use the Create Arc tool to create arcs in the map coverage.
- 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.
- Double-click or press the Enter key to terminate the arc.
- Use the Create Point 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.
|
- Use the Create Vertex tool to add vertices along arcs.
|
3. Split arcs.
|
- An existing arc can be split by:
2. Add a node to the arc.
|
- Use the Create Point 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.
|
- Use the Select Points\Nodes 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.
|
- Use the Create Arc tool to start or end a new arc on an existing arc to split the existing arc into two arcs.
|
|
|
|
|
3. Assign arc and node attributes.
|
1. Assign stream attributes to arcs.
|
- Using the Select Arcs tool, double-click on stream arcs.
- Enter stream arc attributes in the Attribute Table dialog.
|
|
4. Add the SFR package to the simulation.
|
- Right-click on the GWF model and select New Package, then select the desired package from the list.
|
5. Map from coverage to the stream package.
|
- In the Project Explorer, right-click on the package and use the Map from Coverage command.
- Select the desired coverage from the Select Coverage dialog to map its data to the selected package.
|
6. Modify SFR inputs.
|
- Right-click on the package in the Project Explorer and select the Open command.
- Modify the inputs in the package dialog.
|
To use the streamflow routing (SFR) package in an existing MODFLOW 6 project, use the following processes:
1. Begin with an existing MODFLOW 6 project.
|
- The existing MODFLOW 6 model can be created using the conceptual model or grid based approach.
|
2. Create the Stream (SFR2) coverage and arcs.
|
- While following the steps below to create a coverage, make sure to select the Stream (SFR2) option in the Coverage Setup dialog:
1. Create a new coverage with a Stream option turned on.
|
1. Create new coverage from scratch.
|
- Use the New Coverage right-click command.
- 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.
|
- Use the Duplicate command on an existing coverage. This will copy any feature objects on the coverage.
- Use the Rename command to give the coverage a new name.
- Change the coverage setup.
|
|
2. Create arcs defining the streams.
|
1. Create feature points, arcs, nodes and vertices.
|
- In the map module, create feature objects in the active coverage.
- Use the Create Arc tool to create arcs in the map coverage.
- 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.
- Double-click or press the Enter key to terminate the arc.
- Use the Create Point 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.
|
- Use the Create Vertex tool to add vertices along arcs.
|
3. Split arcs.
|
- An existing arc can be split by:
2. Add a node to the arc.
|
- Use the Create Point 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.
|
- Use the Select Points\Nodes 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.
|
- Use the Create Arc tool to start or end a new arc on an existing arc to split the existing arc into two arcs.
|
|
|
|
|
3. Assign arc and node attributes.
|
1. Assign stream attributes to arcs.
|
- Using the Select Arcs tool, double-click on stream arcs.
- Enter stream arc attributes in the Attribute Table dialog.
|
|
4. Add the SFR package to the simulation.
|
- Right-click on the GWF model and select New Package, then select the desired package from the list.
|
5. Map from coverage to the stream package.
|
- In the Project Explorer, right-click on the package and use the Map from Coverage command.
- Select the desired coverage from the Select Coverage dialog to map its data to the selected package.
|
6. Modify SFR inputs.
|
- Right-click on the package in the Project Explorer and select the Open command.
- Modify the inputs in the package dialog.
|
1. Begin with an existing MODFLOW 6 project.
|
- The existing MODFLOW 6 model can be created using the conceptual model or grid based approach.
|
2. Add the EVT package to the simulation.
|
- Right-click on the GWF model and select New Package, then select the desired package from the list.
|
3. Modify EVT inputs.
|
- Right-click on the package in the Project Explorer and select the Open command.
- Modify the inputs in the package dialog.
- These inputs include:
|
Division
1. Enter transient data into the Map module.
|
2. Import transient data.
|
- Select the Map module coverage that will receive the transient data.
- Use File | Open... to open files with transient data.
- Use the Text Import Wizard to specify how to import the data.
- In step 2, select a transient GMS data type.
|
|
2. Add stress periods to the TDIS package.
|
- Use the Open right-click command on the TDIS package to open the Temporal Discretization (TDIS) Package dialog.
- Edit the stress period information using the options in the dialog.
|
3. Map from the transient data from the coverages to the packages.
|
- For each of the packages that should have transient data associated with them:
- In the Project Explorer, right-click on the package and use the Map from Coverage command.
- Select the desired coverage from the Select Coverage dialog to map its data to the selected package.
|
Division
1. Begin with an existing MODFLOW 6 project.
|
3. Modify package inputs for each desired package.
|
- Right-click on the package in the Project Explorer and select the Open command.
- Modify the inputs in the package dialog.
|
4. Set up the GWF-GWT exchange.
|
- Right-click on the MODFLOW 6 simulation and select New package | GWF-GWT.
- Right-click on the MODFLOW 6 simulation and select Open to open the Simulation Options dialog.
- In the EXCHANGES section, click the boxes under the columns EXGMNAMEA and EXGMNAMEB to specify which models the exchange is connecting.
|
5. Set up the IMS solver package for the transport model.
|
- Often, an additional IMS solver package is desirable for the IMS solver package. To create it:
1. Create the IMS solver package.
|
- Right-click on the MODFLOW 6 simulation and select the New Package | IMS command.
- If needed, give it a new name to differentiate it from any other IMS solver packages.
|
2. Define the settings of the IMS solver package.
|
- Right-click on the package in the Project Explorer and select the Open command.
- Modify the inputs in the package dialog.
- These inputs include:
- COMPLEXITY
- Options under the NONLINEAR section.
- Options under the LINEAR section.
|
3. Specify which model the IMS solver package corresponds to.
|
- Double-click on the MODFLOW 6 simulation to open the Simulation Options dialog.
- In the SOLUTIONGROUPS section, click the boxes under the SLNMNAMES section to select which model corresponds to each IMS solver package.
|
|