Hi Fahad,
Tidal or ocean boundaries are usually represented by an HT boundary that spans along the ocean for the width of the model. The boundary should extend up to an elevation at least equal to the boundary water level.
If you have any further TUFLOW related questions please don't hesitate to email support@tuflow.com
Kind regards,
Ellis
Hi Fahad,
Are you able to please clarify your boundary configuration?
From your diagram, it looks to me as if the green lines should be your downstream boundaries (as they are located at catchment outlets) not upstream boundaries.
Thanks,
Ellis