2D Flood Modeling - 5 Common Mistakes And How To Avoid Them

2D flood modeling interprets the 2D equations of flow to find out the water depth and depth-averaged velocity on a grid or mesh. It uses digital terrain modeling and bathymetry of a water channel in the question to outline the 2D-flow of an expected flood.

With 2D flood modeling, you don’t need to predefine the flow routes. 2D modeling is also suitable for mapping future floods because it takes velocity variation on floodplain into account and provides flood maps and depth grids as direct outcomes. Also, it could be more accurate than 1D flood modeling.