CLN Well Observations Workflow

For MODFLOW-USG, head observations for the Connected Linear Network (CLN) wells can be created to measure the computed head in a CLN node (cell). To use the CLN well observations, do the following:

1. Create a conceptual model and coverage.

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. Import well 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.

3. Set CLN observation well data.
Right-click on the CLN wells coverage and select the Attributes Table command. Set CLN observation wells data in the Attributes Table dialog.

4. Create observations points.
Use an observation coverage with the Trans Head option turned on. Right-click on the observation coverage and select the Attributes Table command. Set CLN observation wells data in the Attributes Table dialog including Obs. Trans Head data.

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