1. Turn on tidal forcing. In the Project Explorer, right-click on the ADCIRC boundary conditions coverage and select Forcing Options. Turn on Tidal forcing in the Boundary Conditions Forcing Options dialog. 2. Define tidal constituents. Right-click in the Project Explorer and select the New Simulations | Tidal Constituents command. In the Project Explorer, right-click on the tidal constituents simulation and select Edit Constituents. Define tidal constituents in the Tidal Constituents dialog.