Our project methodology is depicted in Figure 1.

We have implemented a stochastic space-time rainfall model (RAINSIM) for Nanjing. Within our virtual flood forecasting system, this model has been used to generate multiple ‘real’ storms and their forecasts.

We have implemented the HiPIMS hydrodynamic modelling system for our study site in Nanjing (Shazhou polder situated in Hexi New Town) and generated ‘real’ flood inundation maps for the generated storms. These can be used by flood managers to assess the impacts of storms with different profiles and return periods.

We have catalogued the risk response actions RRAs that can be implemented to manage flood risk in real-time for the city.  These RRAs capture the procedures that are used in deciding how and when to issue warnings, to mobilize the emergency services and to implement evacuations and other RRAS that can protect the citizens and their property from flooding. 

We have implemented a set of procedures for decision-making under uncertainty and applied them to decision-making under uncertainty for the multiple ‘real’ storms and their forecasts for our study site.

Before preceding to further explore our site, we encourage you to play our Virtual Flood Game. This explores the question: Does the use of probabilistic information lead to better decisions?

Figure 1. Methodology