@@ -90,7 +90,7 @@ Nonetheless, it is important to highlight that still water equilibrium is a very
Now we want to run the full simulation, with boundaries which model the incoming tsunami wave. For this we need to create the `extbc.input` file (`extbc` stands for external boundary conditions).
Details on how to setup boundary conditions are in the [SERGHEI BC wiki page](https://gitlab.com/serghei-model/serghei/-/wikis/User-Guide/Boundary-conditions). Try setting this up simply following the documentation.
We need to devine a single boundary, which we may call `inlet`. We wish to define an **inflow stage hydrograph**, i.e., a time series of water surface elevations (t, h+z). You therefore need to include the relevant `bctype` code for this. `direction` indicates the inflow direction of the hydrograph in a unit vector fashion, i.e., `1.0 1.0` would mean a 45 degree angle (North-East), `-1, 0` would mean a 180 degree angle (South).
We need to devine a single boundary, which we may call `inlet`. We wish to define an **inflow stage hydrograph**, i.e., a time series of water surface elevations (t, h+z). You therefore need to include the relevant `bctype` code for this. `direction` indicates the inflow direction of the hydrograph in a unit vector fashion, i.e., `1.0 1.0` would mean a 45 degree angle (North-East), `-1, 0` would mean a 180 degree angle (West).
Finally, the `polygon` and `hydrograph` entries require the name of the polygon file which defines where to find the boundary (`polygon.input`), and the file containing the stage hydrograph (i.e., `wave.input`).
