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- Create the overall (coarser) model
- Create the smaller (finer) model
- Open the smaller (finer) model
- Specify 'open' boundaries.
- Change forcing to 'time series'
- Open the larger (coarser) model (see Figure 1)
- Go to the Nesting toolbox and 'Nesting - 1'
- Specify the grid, enc and bnd file of the finer model.
- Generate the 'admin' file by clicking on 'Make Observation Points'.
- Define the time step of the observation points
- Save all your Delft3D-FLOW files
- Run the coarser model
- Open the smaller (finer) model (see Figure 2)
- Go to the Nesting toolbox and 'Nesting - 2'
- Specify the history and admin file.
- Click on 'Run Nesting'. Boundary conditions can be generated for the “Hydrodynamics” and also “Transport” (e,g, salinity).