User:Rcorrigan/Workflow Tests

MODFLOW 6 Conceptual Model Workflow draft

MODFLOW 6 Conceptual Model Workflow draft

1. Start GMS.

1. Start GMS, or clear existing projects in GMS. If GMS is already running, select File | New. A new project can also be started by clicking New . 2. If necessary, register or update GMS. 1. Register GMS and components. 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 Aquaveo License Registration dialog. Follow the Registration Wizard instructions. Review the registered components in the Aquaveo License Registration dialog. 2. Update GMS. GMS can be updated by doing any of the following: Select Download if prompted to update when starting GMS. Select Help | Check For Updates. Go directly to the GMS download page. 3. Set the display projection. Select the Edit | Units... command. In the Units dialog, set the time, mass, force, and concentration. Click the button and set the horizontal and vertical projection in the Display Projection dialog. 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. Load images from local computer files using the File | Open... command. Alternatively, drag and drop the file into the Graphics Window in GMS. 2. Import images from the web. Use the Add Online Maps macro. Select a location in the Virtual Earth Map Locator. If a projection has not been set for the project, set a new project in the Display Projection dialog. Use the Data Service Options dialog to select a web service. 2. Gather and open geometric data files. 1. Import map data. Use the File | Open... command to import map data such as Map files, boundary ID files, or boundary XY files. Alternately, drag and drop the file into the Graphics Window in GMS. 2. Import GIS data. Use the File | Open... command to import GIS data files such as Shapefiles or raster files. Alternatively, drag and drop the file into the Graphics Window in GMS. 3. Import scatter data. Use File | Open... to open files with scatter data. Alternatively, drag and drop the file into the Graphics Window in GMS. Use the File Import Wizard to specify how to import the data. 4. Import CAD data. Verify the CAD file type is readable by GMS before importing it. GMS can import DXF and DWG files. 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. Right-click on an object in the Project Explorer and select the Projection | Projection command. Set the horizontal and vertical projection using the Object Projection dialog. To set a global projection, use the Horizontal Projection dialog. 3. Gather hydrologic data files. 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. Convert an Existing MODFLOW MODEL to MODFLOW 6.

4. Define the project boundaries.

1. Create a new conceptual model in the Project Explorer. Create a new conceptual model with the "MODFLOW" type. 1. Create new conceptual model. Use the New Conceptual Model right-click command in the Project Explorer. Use the Conceptual Model Properties dialog to create a new conceptual model. 2. Add coverages. 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 the boundary arcs. 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. 2. Refine the arc shape. Use the Select Vertices tool and the Select Points\Nodes tool to move/edit existing arcs and refine the shape by dragging the nodes/vertices. Use the Select Arcs tool to move entire arcs . 3. Split arcs. An existing arc can be split by: 1. Converting a vertex to a node. Use the Select Vertices tool. Select the Feature Objects | Vertices → Nodes command to split the arc into two arcs. 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. 5. Split overlapping arcs using the Clean Options dialog. Select overlapping arcs using the Select Arcs tool. Use the Feature Objects | Clean command to bring up the Clean Options dialog. 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. Select the shared node using the Select Points\Nodes tool. Click on the Feature Objects | Nodes → Vertices menu command to merge the arcs. If desired, the Select Vertices tool can be used to select and delete the new vertex. 5. Transform arcs. Select the arc using the Select Arcs tool. Use the Edit | Transform command. Use the Transform dialog to scale, translate or rotate the arc.

5. Define the sources/sinks coverage.

1. Create the sources/sinks coverage. Create a coverage with source/sink attributes. 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 source/sink feature objects. Create any of the source/sink object needed for the project. Not all source/sink objects are required. 1. Define head arcs or nodes. 1. Create head arcs or points. Create feature arcs or points in the head location. These are often created from existing boundary arcs. 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. 2. Refine the arc shape. Use the Select Vertices tool and the Select Points\Nodes tool to move/edit existing arcs and refine the shape by dragging the nodes/vertices. Use the Select Arcs tool to move entire arcs . 3. Split arcs. An existing arc can be split by: 1. Converting a vertex to a node. Use the Select Vertices tool. Select the Feature Objects | Vertices → Nodes command to split the arc into two arcs. 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. 5. Split overlapping arcs using the Clean Options dialog. Select overlapping arcs using the Select Arcs tool. Use the Feature Objects | Clean command to bring up the Clean Options dialog. 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. Select the shared node using the Select Points\Nodes tool. Click on the Feature Objects | Nodes → Vertices menu command to merge the arcs. If desired, the Select Vertices tool can be used to select and delete the new vertex. 5. Transform arcs. Select the arc using the Select Arcs tool. Use the Edit | Transform command. Use the Transform dialog to scale, translate or rotate the arc. 2. Add head properties. Using the Select Point/Node tool or Select Arc tool, right-click on the head arc or node and select the Attributes Table command. Define the head properties in the Attribute Table dialog. Heads can be specified or general. 2. Define drain arcs or nodes. 1. Create drain arcs or points. Create feature arcs or points in the drain location. 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. 2. Refine the arc shape. Use the Select Vertices tool and the Select Points\Nodes tool to move/edit existing arcs and refine the shape by dragging the nodes/vertices. Use the Select Arcs tool to move entire arcs . 3. Split arcs. An existing arc can be split by: 1. Converting a vertex to a node. Use the Select Vertices tool. Select the Feature Objects | Vertices → Nodes command to split the arc into two arcs. 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. 5. Split overlapping arcs using the Clean Options dialog. Select overlapping arcs using the Select Arcs tool. Use the Feature Objects | Clean command to bring up the Clean Options dialog. 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. Select the shared node using the Select Points\Nodes tool. Click on the Feature Objects | Nodes → Vertices menu command to merge the arcs. If desired, the Select Vertices tool can be used to select and delete the new vertex. 5. Transform arcs. Select the arc using the Select Arcs tool. Use the Edit | Transform command. Use the Transform dialog to scale, translate or rotate the arc. 2. Add drain properties. Using the Select Point/Node tool or Select Arc tool, right-click on the drain arc or node and select the Attributes Table command. Define the drain properties in the Attributes Table dialog. 3. Define wells. 1. Create wells points. Create feature points in the well location. 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. 2. Refine the arc shape. Use the Select Vertices tool and the Select Points\Nodes tool to move/edit existing arcs and refine the shape by dragging the nodes/vertices. Use the Select Arcs tool to move entire arcs . 3. Split arcs. An existing arc can be split by: 1. Converting a vertex to a node. Use the Select Vertices tool. Select the Feature Objects | Vertices → Nodes command to split the arc into two arcs. 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. 5. Split overlapping arcs using the Clean Options dialog. Select overlapping arcs using the Select Arcs tool. Use the Feature Objects | Clean command to bring up the Clean Options dialog. 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. Select the shared node using the Select Points\Nodes tool. Click on the Feature Objects | Nodes → Vertices menu command to merge the arcs. If desired, the Select Vertices tool can be used to select and delete the new vertex. 5. Transform arcs. Select the arc using the Select Arcs tool. Use the Edit | Transform command. Use the Transform dialog to scale, translate or rotate the arc. 2. Add well properties. Using the Select Point/Node tool, right-click on well nodes and select the Attributes Table command. Define the well properties in the Attributes Table dialog. 4. Define stream arcs. 1. Create stream arcs. Create feature arcs in the stream location. 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. 2. Refine the arc shape. Use the Select Vertices tool and the Select Points\Nodes tool to move/edit existing arcs and refine the shape by dragging the nodes/vertices. Use the Select Arcs tool to move entire arcs . 3. Split arcs. An existing arc can be split by: 1. Converting a vertex to a node. Use the Select Vertices tool. Select the Feature Objects | Vertices → Nodes command to split the arc into two arcs. 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. 5. Split overlapping arcs using the Clean Options dialog. Select overlapping arcs using the Select Arcs tool. Use the Feature Objects | Clean command to bring up the Clean Options dialog. 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. Select the shared node using the Select Points\Nodes tool. Click on the Feature Objects | Nodes → Vertices menu command to merge the arcs. If desired, the Select Vertices tool can be used to select and delete the new vertex. 5. Transform arcs. Select the arc using the Select Arcs tool. Use the Edit | Transform command. Use the Transform dialog to scale, translate or rotate the arc. 2. Add stream properties. Using the Select Arc tool, right-click on the stream arc and select the Attributes Table command. Define the stream properties in the Attributes Table dialog. 5. Define specified flow arcs. 1. Create specified flow arcs. Create feature arcs in the specified flow location. 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. 2. Refine the arc shape. Use the Select Vertices tool and the Select Points\Nodes tool to move/edit existing arcs and refine the shape by dragging the nodes/vertices. Use the Select Arcs tool to move entire arcs . 3. Split arcs. An existing arc can be split by: 1. Converting a vertex to a node. Use the Select Vertices tool. Select the Feature Objects | Vertices → Nodes command to split the arc into two arcs. 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. 5. Split overlapping arcs using the Clean Options dialog. Select overlapping arcs using the Select Arcs tool. Use the Feature Objects | Clean command to bring up the Clean Options dialog. 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. Select the shared node using the Select Points\Nodes tool. Click on the Feature Objects | Nodes → Vertices menu command to merge the arcs. If desired, the Select Vertices tool can be used to select and delete the new vertex. 5. Transform arcs. Select the arc using the Select Arcs tool. Use the Edit | Transform command. Use the Transform dialog to scale, translate or rotate the arc. 2. Add specified flow properties. Using the Select Arc tool, right-click on the specified flow arc and select the Attributes Table command. Define the specified flow properties in the Attributes Table dialog. 6. Define flow barrier arcs. 1. Create flow barrier arcs. Create feature arcs in the flow barrier location. 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. 2. Refine the arc shape. Use the Select Vertices tool and the Select Points\Nodes tool to move/edit existing arcs and refine the shape by dragging the nodes/vertices. Use the Select Arcs tool to move entire arcs . 3. Split arcs. An existing arc can be split by: 1. Converting a vertex to a node. Use the Select Vertices tool. Select the Feature Objects | Vertices → Nodes command to split the arc into two arcs. 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. 5. Split overlapping arcs using the Clean Options dialog. Select overlapping arcs using the Select Arcs tool. Use the Feature Objects | Clean command to bring up the Clean Options dialog. 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. Select the shared node using the Select Points\Nodes tool. Click on the Feature Objects | Nodes → Vertices menu command to merge the arcs. If desired, the Select Vertices tool can be used to select and delete the new vertex. 5. Transform arcs. Select the arc using the Select Arcs tool. Use the Edit | Transform command. Use the Transform dialog to scale, translate or rotate the arc. 2. Add flow barrier properties. Using the Select Arc tool, right-click on the flow barrier arc and select the Attributes Table command. Define the barrier properties in the Attributes Table dialog.

6. Delineate the recharge zones.

1. Create a recharge coverage. Create a coverage with Recharge Rate 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. Define the recharge polygon. Create an enclosed arc in the recharge area. 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. 2. Refine the arc shape. Use the Select Vertices tool and the Select Points\Nodes tool to move/edit existing arcs and refine the shape by dragging the nodes/vertices. Use the Select Arcs tool to move entire arcs . 3. Split arcs. An existing arc can be split by: 1. Converting a vertex to a node. Use the Select Vertices tool. Select the Feature Objects | Vertices → Nodes command to split the arc into two arcs. 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. 5. Split overlapping arcs using the Clean Options dialog. Select overlapping arcs using the Select Arcs tool. Use the Feature Objects | Clean command to bring up the Clean Options dialog. 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. Select the shared node using the Select Points\Nodes tool. Click on the Feature Objects | Nodes → Vertices menu command to merge the arcs. If desired, the Select Vertices tool can be used to select and delete the new vertex. 5. Transform arcs. Select the arc using the Select Arcs tool. Use the Edit | Transform command. Use the Transform dialog to scale, translate or rotate the arc. 3. Build polygons. Polygons are not created automatically when arcs are enclosed. To create polygons: Use the Feature Objects | Build Polygons command. 4. Assign the recharge attributes. Using the Select Polygon tool, double-click on the recharge polygon. Assign recharge properties in the Attributes Table dialog.

7. Define the hydraulic conductivity.

1. Create a hydraulic conductivity coverage. Create a new coverage with hydraulic conductivity options (horizontal K, vertical K, anistropy, etc.) 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. Define the hydraulic conductivity polygon. Create an enclosed arc in the hydraulic conductivity area. 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. 2. Refine the arc shape. Use the Select Vertices tool and the Select Points\Nodes tool to move/edit existing arcs and refine the shape by dragging the nodes/vertices. Use the Select Arcs tool to move entire arcs . 3. Split arcs. An existing arc can be split by: 1. Converting a vertex to a node. Use the Select Vertices tool. Select the Feature Objects | Vertices → Nodes command to split the arc into two arcs. 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. 5. Split overlapping arcs using the Clean Options dialog. Select overlapping arcs using the Select Arcs tool. Use the Feature Objects | Clean command to bring up the Clean Options dialog. 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. Select the shared node using the Select Points\Nodes tool. Click on the Feature Objects | Nodes → Vertices menu command to merge the arcs. If desired, the Select Vertices tool can be used to select and delete the new vertex. 5. Transform arcs. Select the arc using the Select Arcs tool. Use the Edit | Transform command. Use the Transform dialog to scale, translate or rotate the arc. 3. Build polygons. Polygons are not created automatically when arcs are enclosed. To create polygons: Use the Feature Objects | Build Polygons command. 4. Assign the hydraulic conductivity values. Using the Select Polygon tool, double-click on the hydraulic conductivity polygon. Assign hydraulic conductivity properties in the Attributes Table dialog.

8. Define the layer elevations.

1. Create a coverage with Top elev. and Bottom elev. 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. Build polygons. Polygons are not created automatically when arcs are enclosed. To create polygons: Use the Feature Objects | Build Polygons command. 3. Assign the top and bottom elevation values. Using the Select Polygon tool, double-click on the polygon. Assign elevation properties in the Attribute Table dialog.

9. Create a UGrid.

Create a 3D UGrid: Create a 3D UGrid in one of the following ways: 1. Create a 3D UGrid from scratch. Right-click in the Project Explorer and select New | UGrid 3D.... 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. Right-click on the desired coverage and select the Map To | UGrid command. In the Map → UGrid dialog, set the Dimension drop-down to "3D". Enter the rest of the information for the grid, including the X-, Y-, and Z-Dimension information.

10. Define active/inactive zones.
Select the coverage containing the project boundaries. Select Feature Objects | Activate Cells in Coverage(s).

11. Create a MODFLOW 6 simulation.
Right-click in the Project Explorer and select the New Simulation | MODFLOW 6 command. In the New MODFLOW 6 Simulation dialog, select the UGrid to use and any optional packages.

12. Map to the model.
Select the conceptual model . Select Feature Objects | Map → MODFLOW . Select the appropriate options in the Map → Model dialog.

13. Set up package parameters.
Set up global and output package parameters: TDIS, IMS, DIS, IC, OC. Set up flow package parameters: NPF, HFB, GNC. Set up optional package parameters, including boundary conditions such as: CHD, GHB, RIV, SFR, etc.

14. Run MODFLOW 6 Simulation.
In the Project Explorer, right-click on the MODFLOW 6 simulation and Save Simulation and Run. The Simulation Run Queue dialog will appear; allow the simulation to run to completion. When the simulation has finished successfully, click Load Solution.

15. Visualize the Solution.

1. Change display options. 1. Set display options. Open the Display Options dialog. Set the general display options. Set general lighting options. Set display options for each module that is being used. Set contour options. Set vector options. 2. View display. Use the Rotate , Pan , and Zoom tools. Use the View menu commands found in the Display menu. Use the Frame command to center and resize the display as needed. 3. Adjust display. Display may need to be adjusted during the remainder of the project. Use the Display Options dialog and viewing tools as needed. Use the Frame command to center and resize the display as needed. 2. Change contour options. Turn on Contours in the Display Options dialog and set contour options. The "Color Fill" option is recommended for this. Look for inconsistent points (points with values much higher/lower than their neighbors or regions where no data points exist). 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. Select the Display | Plot Wizard menu command. Note that some plots require an observation coverage exist in the project. 2. Select available plot type. 1. Computed vs. Observed Data plots. 1. Computed vs. Observed Data. Select Display | Plot Wizard to start the Plot Wizard. Select the "Computed vs. Observed Data" option on the left and click Next. Specify plot options in step 2 of the Plot Wizard then click Finish. Review plot window. 2. Computed vs. Observed Data (Weighted). Select Display | Plot Wizard to start the Plot Wizard. Select the "Computed vs. Observed Data (Weighted)" option on the left and click Next. Specify plot options in step 2 of the Plot Wizard then click Finish. Review plot window. 2. Residual vs. Observed Data plots. 1. Residual vs. Observed Data. Select Display | Plot Wizard to start the Plot Wizard. Select the "Residual vs. Observed" option on the left and click Next. Specify plot options in step 2 of the Plot Wizard then click Finish. Review plot window. 2. Residual vs. Observed Data (Weighted). Select Display | Plot Wizard to start the Plot Wizard. Select the "Residual vs. Observed (Weighted)" option on the left and click Next. Specify plot options in step 2 of the Plot Wizard then click Finish. Review plot window. 3. Parameter Sensitivity plot. Select Display | Plot Wizard to start the Plot Wizard. Select the "Parameter Sensitivity" option on the left and click Next. Specify plot options in step 2 of the Plot Wizard then click Finish. Review plot window. 4. Error vs. Simulation plot. Select Display | Plot Wizard to start the Plot Wizard. Select the "Error vs. Simulation" option on the left and click Next. Specify plot options in step 2 of the Plot Wizard then click Finish. Review plot window. 5. Error vs. Time Step plot. Select Display | Plot Wizard to start the Plot Wizard. Select the "Error vs. Time Step" option on the left and click Next. Specify plot options in step 2 of the Plot Wizard then click Finish. Review plot window. 6. Error Summary plot. Select Display | Plot Wizard to start the Plot Wizard. Select the "Error Summary" option on the left and click Next. Specify plot options in step 2 of the Plot Wizard then click Finish. Review plot window. 7. Time Series plot. Select Display | Plot Wizard to start the Plot Wizard. Select the "Time Series" option on the left and click Next. Specify plot options in step 2 of the Plot Wizard then click Finish. Review plot window. 8. Active Dataset Time Series plot. Select a dataset in Project Explorer. Select cells in the project. Select Display | Plot Wizard to start the Plot Wizard. Select the "Active Dataset Time Series" option on the left and click Next. Specify plot options in step 2 of the Plot Wizard then click Finish. Review plot window. 9. S/S Flow vs. Time plot. Select Display | Plot Wizard to start the Plot Wizard. Select the "S/S Flow vs. Time" option on the left and click Next. Specify plot options in step 2 of the Plot Wizard then click Finish. Review plot window. 10. Flow Budget vs. Time plot. Select Display | Plot Wizard to start the Plot Wizard. Select the "Flow Budget vs. Time" option on the left and click Next. Specify plot options in step 2 of the Plot Wizard then click Finish. Review plot window. 11. Gage Package Value vs. Time plot. Select Display | Plot Wizard to start the Plot Wizard. Select the "Gage Package Value vs. Time" option on the left and click Next. Specify plot options in step 2 of the Plot Wizard then click Finish. Review plot window. 4. Create an animation. Select a solution dataset and use the Display | Animate menu command. Use the Animation Wizard to specify the animation parameters. Save and view the animation file. 5. Review the zone and flow budgets. Select MODFLOW | Flow Budget.... Review the flow data on the Cells and Zones tabs in the Flow Budget dialog. Generate water budget data on the USGS ZONEBUDGET tab.

Quadtree Generation

1. Create a Quadtree Generator map coverage.

Create a new coverage with the "Quadtree Generator" type. 1. Create new coverage from scratch. Select Map Data in the Project Explorer and use the New Coverage right-click command. Use the New Coverage dialog to create a new coverage by selecting the desired coverage type, 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 type.

2. Create a quadtree grid frame.
Use the Create 2D Grid Frame tool to click out a grid frame. Double-click on the grid frame with the Select 2D Grid Frame tool to bring up the Grid Frame Properties dialog. Use the Grid Frame Properties dialog to refine the dimensions of the grid frame.

3. Generate quadtree from the Quadtree Generator coverage.
Select the Quadtree Generator coverage and use the Map → Quadtree UGrid right-click command. Set the grid parameters in the Map → Quadtree UGrid dialog.

SRH-2D Reports

8. Generate and review the SRH-2D summary report.

The summary report allows many reports to be generated at once and viewed in an internet browser. To do so, follow these steps: 1. Generate the SRH-2D summary report. Right-click on an existing SRH-2D simulation and use the Tools|Summary Report command. Enter relevant notes in the SRH-2D Project Summary Report dialog. Click OK to run the Summary Report tool. 2. Review the summary report. 1. Open the summary report. The summary report should automatically appear in a web browser when the Summary Report tool is finished running. If it does not, please follow the steps below: Navigate to where the project file is saved and open the reports folder then the srh-2d_summary_reports folder. Select the "index.html" file and open it in a web browser. 2. Review Data. The summary report includes much numerical and model data. It also includes three interactive features for reviewing data: Use the links in the table of contents to quickly navigate to a desired section. Use the maps to visually review coverages, mesh, and scatter set data by zooming and panning. Use the plots to visually review data by using the toolbar on top of the plot.

UGrid Clipping Template

1. Use a clipping plane.

1. Select a UGrid cell and note vector points. Use the Select Elements tool and note the cell centroid values. 2. Set UGrid clipping display options. Select the Display | Display Options menu command. In the UGrid tab for the UGrid that is to be adjusted, turn on the Clip options and click the Options dialog. Adjusting in the general UGrid tab will not have the desired effect. In the UGrid Clip Settings dialog, select the "Plane" setting and set the plane values. The cell centroid values and normal vector points must be entered. 3. Use the clipping plane widget. Using the Edit Clip Plane tool, adjust the clipping plane location.

2. Clip to a scalar value.
Select the Display | Display Options menu command. In the UGrid tab for the UGrid that is to be adjusted, turn on the Clip options and click the Options dialog. Adjusting in the general UGrid tab will not have the desired effect. In the UGrid Clip Settings dialog, select the "Scalar" setting and set the scalar value. Only values above the selected scalar value will be displayed.

3. Clip to a scalar range.
Select the Display | Display Options menu command. In the UGrid tab for the UGrid that is to be adjusted, turn on the Clip options and click the Options dialog. Adjusting in the general UGrid tab will not have the desired effect. In the UGrid Clip Settings dialog, select the "Scalar Range" setting and set the range values. Only values within the selected scalar values will be displayed.

Sediment Volume Management

1. Create a Sediment Volume Management coverage.
Create a new coverage with the "Sediment Volume Management" type. It's under the Engineering with Nature section. Select Map Data in the Project Explorer and use the New Coverage right-click command. Use the New Coverage dialog to create a new coverage by selecting the desired coverage type, and naming the coverage.

2. Create feature objects in the Sediment Volume Management coverage.

1. Create enclosed arcs for polygon area. 1. Create feature arcs, nodes and vertices. In the Map module, create feature objects in the active coverage. Use the Create Feature 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 Feature Node tool to create additional nodes alone or to split arcs. 2. Modify arcs. Feature arcs often need to be edited after initial creation. 1. Create additional vertices on arcs. Use the Create Feature Vertex tool to add vertices along arcs. 2. Refine the arc shape. Use the Select Feature Vertex tool and the Select Feature Node tool to move/edit existing arcs and refine the shape by dragging the nodes/vertices. Use the Select Feature Arc tool to move entire arcs . 3. Split arcs. An existing arc can be split by: 1. Converting a vertex to a node. Use the Select Feature Vertex tool and right-click on a vertex along an arc. Select the Convert to Node command to split the arc into two arcs. 2. Add a node the arc. Use the Create Feature Node tool to add a node on an arc in order to split it into two arcs. 3. Add a new connecting arc. Use the Create Feature Arc tool to start or end a new arc on an existing arc to split the existing arc into two arcs. 4. Use the Split Arcs Tool. Right-click on an arc using the Select Feature Arc tool and select the Split Arc(s)... command. Use the Split Arcs Tool to divide arcs. 5. Split overlapping arcs using the Clean Options dialog. Select overlapping arcs using the Select Feature Arc tool. Use the Feature Objects | Clean command to bring up the Clean Options dialog. 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. Select the shared node using the Select Feature Node tool. Right-click on the node and select the Convert to Vertex command to merge the arcs. If desired, the Select Feature Vertex tool can be used to select and delete the new vertex. 5. Smooth arcs. The variability or roughness of an arc can be reduced. Right-click on an arc using the Select Feature Arc tool and select the Smooth Arc(s)... command. Use the Smooth Arcs Tool to reduce the variability of the arc. 6. Prune arcs. Concave sections of the arc can be removed. Right-click on an arc using the Select Feature Arc tool and select the Prune Arc(s)... command. Use the Prune Arcs dialog to remove concave sections. 7. Extend/trim arcs. Extend or shorten an arc to match an existing arc's length. Using the Select Feature Arc tool, select two intersecting arcs. Right-click on an arc using the Select Feature Arc tool and select the Extend/Trim Arc... command. Use the Trim/Extend Arc dialog to select the target arc and source arc. 2. Build polygons. Polygons are not created automatically when arcs are enclosed. To create polygons: Use the Feature Objects | Build Polygons command.

3. Assign Sediment Volume Management attributes to polygons.
Use the Select Feature Polygon tool to select a feature object polygon in the Sediment Volume Management coverage. Right-click on the selected polygon and use the Sediment Properties... command. Enter the desired attributes in the Sediment Volume Management dialog.

4. Use the Sediment Volume Management tool.

Right-click on the Sediment Volume Management coverage and use the Sediment Volume Management command. In the Sediment Volume Management dialog, select a source geometry and a maximum slope. The table under Computation allows for adjusting the already-established sediment properties as desired. Click Compute to run the Sediment Volume Management tool. Review the results in the Computation table. Viewing many of the results might require scrolling to the right. Adjust the computation and run again as desired.

Saving and Importing a Profile Plot

1. Save a plot file in SMS.

There are two ways to save a plot file in SMS: 1. Save the whole project with the plot dialog open. With the plot dialog open, use the Save or the File|Save As... command. If this version of the project is opened again, the plot dialog will open with it. 2. Save the plot separately. A separate plot file can be created that can be imported into any project with the same mesh. Make sure that the desired dataset is selected and therefore represented in the plot dialog. With the plot open, use the File|Save As... command to open the Save As dialog. Name the file and select "Plot File (*.plt)" next to Save as type. Save the file.

2. Import the plot file.

1. Open a project file saved with a plot file Use the File|Open command to open the project with the saved plot file in it. The plot will appear with the project as you open it. 2. Import a plot file saved separately If a plot file has been saved separately, it can be imported into another project with the same mesh and datasets with the same name. A profile plot will also require an observation coverage with the same name. The data in the plot will represent the conditions in that project. To import it: Ensure that the open project has all required components to support the plot as described above. Use the File|Open command to open the Open dialog and navigate to where the plot file is saved. Open and review the plot.

For creating the profile plot dialog, see the "Observations Workflow".

Plot Data

1. Create a plot data coverage.

Create a new coverage with the "Plot Data" type. This coverage type is used in conjunction with the observation coverage to show where a structure will appear on a profile plot created with data from the observation coverage. Select Map Data in the Project Explorer and use the New Coverage right-click command. Use the New Coverage dialog to create a new coverage by selecting the desired coverage type, and naming the coverage.

2. Create polygons in the plot data coverage.

It is important that they overlap with observations arcs from the observation coverage. 1. Create enclosed arcs for polygon area. 1. Create feature arcs, nodes and vertices. In the Map module, create feature objects in the active coverage. Use the Create Feature 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 Feature Node tool to create additional nodes alone or to split arcs. 2. Modify arcs. Feature arcs often need to be edited after initial creation. 1. Create additional vertices on arcs. Use the Create Feature Vertex tool to add vertices along arcs. 2. Refine the arc shape. Use the Select Feature Vertex tool and the Select Feature Node tool to move/edit existing arcs and refine the shape by dragging the nodes/vertices. Use the Select Feature Arc tool to move entire arcs . 3. Split arcs. An existing arc can be split by: 1. Converting a vertex to a node. Use the Select Feature Vertex tool and right-click on a vertex along an arc. Select the Convert to Node command to split the arc into two arcs. 2. Add a node the arc. Use the Create Feature Node tool to add a node on an arc in order to split it into two arcs. 3. Add a new connecting arc. Use the Create Feature Arc tool to start or end a new arc on an existing arc to split the existing arc into two arcs. 4. Use the Split Arcs Tool. Right-click on an arc using the Select Feature Arc tool and select the Split Arc(s)... command. Use the Split Arcs Tool to divide arcs. 5. Split overlapping arcs using the Clean Options dialog. Select overlapping arcs using the Select Feature Arc tool. Use the Feature Objects | Clean command to bring up the Clean Options dialog. 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. Select the shared node using the Select Feature Node tool. Right-click on the node and select the Convert to Vertex command to merge the arcs. If desired, the Select Feature Vertex tool can be used to select and delete the new vertex. 5. Smooth arcs. The variability or roughness of an arc can be reduced. Right-click on an arc using the Select Feature Arc tool and select the Smooth Arc(s)... command. Use the Smooth Arcs Tool to reduce the variability of the arc. 6. Prune arcs. Concave sections of the arc can be removed. Right-click on an arc using the Select Feature Arc tool and select the Prune Arc(s)... command. Use the Prune Arcs dialog to remove concave sections. 7. Extend/trim arcs. Extend or shorten an arc to match an existing arc's length. Using the Select Feature Arc tool, select two intersecting arcs. Right-click on an arc using the Select Feature Arc tool and select the Extend/Trim Arc... command. Use the Trim/Extend Arc dialog to select the target arc and source arc. 2. Build polygons. Polygons are not created automatically when arcs are enclosed. To create polygons: Use the Feature Objects | Build Polygons command.

3. Create an observation plot.
Select Display | Plot Wizard to start the Plot Wizard. Select the "Observation Profile" option on the left and click Next. Select arcs, datasets, and time steps to be plotted. In the Show Intersections section of the Plot Wizard, select the boxes in the Plot Data row. Review plot window.

Raster to Flood Depth

1. Use raster to calculate flood depths.
This requires an elevations raster and a water surface elevation dataset. Right-click on the raster to be used for the flood depths and use the command Convert to|Flood Depths. Next to Geometry, select the desired geometry. Next to WSE dataset, selet the desired dataset. After the tool has finished processing, change the File name as desired in the Save As dialog.

Interpolating from Multiple Elevation Sources Workflow

1. Import elevation sources.

1. Import rasters. Raster data is imported into the GIS module in SMS. Use the Open command to import raster data files such as DEMs, KMZ files, and gridded elevation formats. Files can also be imported with the "drag and drop" option. 2. Import other GIS data. Use the File | Open... command to import GIS data files such as Shapefiles, MIF/MID files, Lidar files, or raster files. Alternatively, drag and drop the file into the Graphics Window in SMS. 3. Import Scatter Data. Use File | Open... to open files with scatter data such as scatter point files, ASCII dataset files, binary dataset files, tabular data files, or XYZ files. Alternatively, drag and drop the file into the Graphics Window in SMS. Use the File Import Wizard to specify how to import the data. 4. Import Online Data. 1. Import static images. Use the File | Import from Web command. Select a location in the Virtual Map Locator. Set a projection for the project using the Display Projections dialog. Use the Data Service Options dialog to select a web service or catalog. Use the Advanced options if needing to access a unique or unavailable data source. Save the data file and import the data into SMS. 2. Import dynamic images. Use the File | Add Online Maps command. Select a location in the Virtual Map Locator. Set a projection for the project using the Display Projections dialog. Use the Data Service Options dialog to select a web service or catalog. Save the data file and import the data into SMS.

2. Clean up rasters using the tools for rasters in the toolbox.
Possibly useful tools include Blend Raster to Edges and Clip Raster from Elevation.

3. Interpolate raster elevation to geometry to create new elevation dataset.

The Interpolate Priority Rasters tool allows for multiple rasters to be used when interpolating onto a geometry. To do so, follow these steps: 1. Use the Interpolate Priority Rasters tool to interpolate raster data onto the desired geometry. From the Toolbox, select Interpolate Priority Rasters Select the geometry to interpolate onto. Select the order of priority for the rasters that will be used for interpolation. The order determines which raster the program will look at first to interpolate data onto the geometry. Run the Interpolate Priority Rasters tool. 2. Review the data on the geometry. Turn off all rasters. Turn on the desired geometry. Adjust the Display Options .

4. Set the map elevation dataset to the newly created dataset.
While in the appropriate module for the geometry, use the Data|Map elevation... command. Select the newly created dataset. Adjust the display as desired to review the change in mapped dataset.

Discarded workflow components

Set unassigned node values.

Depending on the rasters used, it's possible that some mesh nodes didn't get assigned elevation values. To assign them values, follow these steps: Right-click on the mesh in the Project Explorer and use the Mesh → 2D Scatter command. Select all desired scatter points. ??Include more information on how to do this? Delete the selected scatter points and use the Triangles|Triangulate command. After switching to the Mesh module, select all nodes with unassigned values in the grid. In the Graphics Window, use the Interpolate elevation right-click command. Set the Scatter Set To Interpolate From to the scatter set where the unassigned scatter points have just been removed and interpolate it to this scatter set.

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Blend Raster Resolution.

Interpolating data from multiple elevation sources first requires blending the rasters involved. To do so, follow these steps: From the Toolbox, select Blend Raster to Edges. Set the Primary raster and the Secondary raster options with the rasters that are to be blended. Specify the distance over which the active edges of the primary raster will be blended into the secondary raster. Specify the name of the Output raster. This will be a separate raster created from the primary and secondary raster. Run the Blend Raster to Edges tool. Examine the newly created raster.

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Clip rasters (optional??).

Trimming rasters ensures that no part of the raster is above surveyed elevations. To do so, follow these steps: 1. Clip raster to high resolution. From the Toolbox, select Clip Raster from Elevations. Specify the Raster to clip and the Elevation raster. Specify if the tool should clip elevations above or below the elevation raster. Set the name of the Output raster. Run the Clip Raster from Elevations tool. Examine the newly created raster. 2. Clip raster to lower resolution. From the Toolbox, select Clip Raster from Elevations. Specify the Raster to clip and the Elevation raster. Specify if the tool should clip elevations above or below the elevation raster. Set the name of the Output raster. Run the Clip Raster from Elevations tool. Examine the newly created raster.

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This step assumes an already-created EWN Features coverage.

1. Create feature arcs, nodes and vertices.

In the Map module, create feature objects in the active coverage. Use the Create Feature 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 Feature Node tool to create additional nodes alone or to split arcs.

2. Modify arcs.

Feature arcs often need to be edited after initial creation. 1. Create additional vertices on arcs. Use the Create Feature Vertex tool to add vertices along arcs. 2. Refine the arc shape. Use the Select Feature Vertex tool and the Select Feature Node tool to move/edit existing arcs and refine the shape by dragging the nodes/vertices. Use the Select Feature Arc tool to move entire arcs . 3. Split arcs. An existing arc can be split by: 1. Converting a vertex to a node. Use the Select Feature Vertex tool and right-click on a vertex along an arc. Select the Convert to Node command to split the arc into two arcs. 2. Add a node the arc. Use the Create Feature Node tool to add a node on an arc in order to split it into two arcs. 3. Add a new connecting arc. Use the Create Feature Arc tool to start or end a new arc on an existing arc to split the existing arc into two arcs. 4. Use the Split Arcs Tool. Right-click on an arc using the Select Feature Arc tool and select the Split Arc(s)... command. Use the Split Arcs Tool to divide arcs. 5. Split overlapping arcs using the Clean Options dialog. Select overlapping arcs using the Select Feature Arc tool. Use the Feature Objects | Clean command to bring up the Clean Options dialog. 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. Select the shared node using the Select Feature Node tool. Right-click on the node and select the Convert to Vertex command to merge the arcs. If desired, the Select Feature Vertex tool can be used to select and delete the new vertex. 5. Smooth arcs. The variability or roughness of an arc can be reduced. Right-click on an arc using the Select Feature Arc tool and select the Smooth Arc(s)... command. Use the Smooth Arcs Tool to reduce the variability of the arc. 6. Prune arcs. Concave sections of the arc can be removed. Right-click on an arc using the Select Feature Arc tool and select the Prune Arc(s)... command. Use the Prune Arcs dialog to remove concave sections. 7. Extend/trim arcs. Extend or shorten an arc to match an existing arc's length. Using the Select Feature Arc tool, select two intersecting arcs. Right-click on an arc using the Select Feature Arc tool and select the Extend/Trim Arc... command. Use the Trim/Extend Arc dialog to select the target arc and source arc.

3. Convert shapefile data to arc.
Select a shapefile dataset in the GIS module and use the Convert | Shape→Feature Objects command. Use the GIS to Feature Objects Wizard to specify how the shapefile attribute will be converted.

4. Create offset arcs
Select a shapefile dataset in the GIS module and use the Convert | Shape→Feature Objects command. Use the GIS to Feature Objects Wizard to specify how the shapefile attribute will be converted.

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2. Create polygon for levee.

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1. Create polygon for levee.

1. Create enclosed arcs for polygon area. 1. Create feature arcs, nodes and vertices. In the Map module, create feature objects in the active coverage. Use the Create Feature 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 Feature Node tool to create additional nodes alone or to split arcs. 2. Modify arcs. Feature arcs often need to be edited after initial creation. 1. Create additional vertices on arcs. Use the Create Feature Vertex tool to add vertices along arcs. 2. Refine the arc shape. Use the Select Feature Vertex tool and the Select Feature Node tool to move/edit existing arcs and refine the shape by dragging the nodes/vertices. Use the Select Feature Arc tool to move entire arcs . 3. Split arcs. An existing arc can be split by: 1. Converting a vertex to a node. Use the Select Feature Vertex tool and right-click on a vertex along an arc. Select the Convert to Node command to split the arc into two arcs. 2. Add a node the arc. Use the Create Feature Node tool to add a node on an arc in order to split it into two arcs. 3. Add a new connecting arc. Use the Create Feature Arc tool to start or end a new arc on an existing arc to split the existing arc into two arcs. 4. Use the Split Arcs Tool. Right-click on an arc using the Select Feature Arc tool and select the Split Arc(s)... command. Use the Split Arcs Tool to divide arcs. 5. Split overlapping arcs using the Clean Options dialog. Select overlapping arcs using the Select Feature Arc tool. Use the Feature Objects | Clean command to bring up the Clean Options dialog. 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. Select the shared node using the Select Feature Node tool. Right-click on the node and select the Convert to Vertex command to merge the arcs. If desired, the Select Feature Vertex tool can be used to select and delete the new vertex. 5. Smooth arcs. The variability or roughness of an arc can be reduced. Right-click on an arc using the Select Feature Arc tool and select the Smooth Arc(s)... command. Use the Smooth Arcs Tool to reduce the variability of the arc. 6. Prune arcs. Concave sections of the arc can be removed. Right-click on an arc using the Select Feature Arc tool and select the Prune Arc(s)... command. Use the Prune Arcs dialog to remove concave sections. 7. Extend/trim arcs. Extend or shorten an arc to match an existing arc's length. Using the Select Feature Arc tool, select two intersecting arcs. Right-click on an arc using the Select Feature Arc tool and select the Extend/Trim Arc... command. Use the Trim/Extend Arc dialog to select the target arc and source arc. 2. Build polygons. Polygons are not created automatically when arcs are enclosed. To create polygons: Use the Feature Objects | Build Polygons command.

2. Assign polygon attributes.
Using the Select Feature Polygons tool, select a polygon then right-click and use the Assign EWN Attribute command. In the EWN Polygon Properties dialog, select the Classification option and assign the appropriate values for the remainder of the dialog. If desired, preview the feature by using the Preview tab.