Template:MODFLOW Generating Data from Solids Workflow

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1. Generate or import solids.
1. Import previously created solids.
  1. Use File | Open... to open files with solid data.
  2. Alternatively, drag and drop the file into the Graphics Window in GMS.
  3. Use the File Import Wizard to specify how to import the data.
2. Generate solids from horizons.
1. Import borehole data.
  1. Use File | Open... to open files with borehole data.
  2. Alternatively, drag and drop the file into the Graphics Window in GMS.
  3. Use the File Import Wizard to specify how to import the data.
2. Determine horizons.
1. Automatically assign horizon IDs.
  1. Select the Boreholes | Auto-Assign Horizons menu command.
  2. Select optimizer options in the Auto-assign Horizons dialog.
  3. Run the Horizon Optimizer model wrapper.
2. Manually assign horizon IDs.
  1. Using the Select Contacts Select Contact Tool.svg tool, select borehole contacts.
  2. Select the Properties GMS Properties Macro.svg macro.
  3. Enter horizons IDs in the Contact horizon ID dialog.
3. Construct TINs. (optional)
TINS can be used for the top and bottom of the solids if a constant value is not being used.
1. Create a new map coverage.
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 boundary polygon.
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 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 Vertices GMS Select Vertex Tool.svg tool and the Select Points\Nodes GMS Select Node Tool.svg tool to move/edit existing arcs and refine the shape by dragging the nodes/vertices.
  2. Use the Select Arcs 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 Vertices GMS Select Vertex Tool.svg tool.
  2. Select the Feature Objects | Vertices → Nodes command to split the arc into two arcs.
2. Add a node to the arc.
  1. Use the Create Point 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 Points\Nodes 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 Arcs 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 Points\Nodes 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 Vertices 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 Arcs 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. Create a TIN.
  1. Select the Feature Objects | Map → TIN menu command.
  2. Set TIN parameters in the Properties dialog.
4. Create solids.
  1. Select the Boreholes | Horizons → Solids menu command.
  2. Use the Horizons to Solids wizard.
    • Set the top and bottom elevations for the solids.
    • Select the interpolation scheme to use in creating the solids.
3. Generate solids from rasters.
1. Import project data.
1. Import raster 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.
2. Import TIN elevation (optional).
  1. Use the File | Open... command to import TIN files.
  2. Alternatively, drag and drop the file into the Graphics Window in GMS.
    • Note: TINs can also be generated in GMS using scatter point elevation data.
2. Use the 3D UGrids from Rasters tool.
  1. Access the 3D UGrid from Rasters tool in the Toolbox Toolbox macro.png.
  2. Add rasters to the table and select options.
  3. Run the tool.
2. Define materials.
3. Generate a 3D grid.
4. Convert solids to MODFLOW.
Select one of the following methods:
1. Solids to MODFLOW using boundary matching.
1. Assign layers to solids.
  1. In the Project Explorer, right-click on the solid dataset and select Properties.
  2. Enter layer range values in the Properties dialog.
2. Convert solids to MODFLOW using boundary matching.
  1. Select Solids | Solids → MODFLOW.
  2. Select the Boundary Matching option in the Solids → MODFLOW dialog.
2. Solids to MODFLOW using grid overlay.
  1. Select Solids | Solids → MODFLOW.
  2. Select the Grid Overlay option in the Solids → MODFLOW dialog.
3. Solids to MODFLOW using grid overlay with K equivalent.
  1. Select Solids | Solids → MODFLOW.
  2. Select the Grid Overlay with K Equivalent option in the Solids → MODFLOW dialog.
4. Solids to HUF package.
1. Select the HUF package.
  1. Select the MODFLOW | Global Options command.
  2. In the MODFLOW Global/Basic Package dialog, select Packages.
  3. In the MODLFOW Packages/Processes dialog, select the HUF – Hydrogeologic Unit Flow option.
2. Convert solids to HUF.
  1. Select Solids | Solids → HUF.
  2. Select options in the Solids → HUF dialog.
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