MIKE FLOOD: An innovative approach to assess flood risk
Basing our solution on the MIKE FLOOD framework, we integrated one-dimensional
(1D) and two-dimensional (2D) mathematical models of the urban collection system,
river system and floodplains. The modelling allowed us to take on an innovative
approach to flood risk assessment, simulating particular conditions so that we could
better derive potential solutions to the challenges.
In the first stage of the project, a preliminary flood risk assessment was simulated
based on the existing situation. We termed the existing scenario ‘W0’ for easy
reference. The simulation allowed us to locate specific areas which were vulnerable
to flooding, even if they had a low flood probability of Q1% (once in a hundred
years). Our modelling showed existing retention capacity in the Rzepnik riverbed,
channels and collection system. The results of the simulation confirmed the flood
risk and showed the inflow of surface water into the sewerage system. When
surface water gets into the pipes, it can cause flooding and interrupt production
process.