Habitat Suitability of Chinook Salmon with morphodynamic modelling

The acute and long-term effect on Chinook salmon during flushing events and natural flood events is estimated using the severity index and habitat suitability index at different locations after the events. Suspended sediment concentration at different locations after flushing events are used for determining the acute effects using severity index whereas, changes in bed composition, depth of water column, and velocity are used to estimate the suitability of the habitat of chinook salmon. Both flushing and natural flood scenarios are recreated using Delft 3D models in the Sandy River downstream of Marmot Dam (removed in 2007).