During the last two decades, major flood events have occurred more frequently in Austria. Climate forecasts indicate that this trend will continue.
Risk communication and awareness-raising among the general public are key elements in dealing with natural hazards. The publicly accessible platform www.hora.gv.at shows parcel-specific flood areas in interactive maps. These areas were updated by VRVis in cooperation with the TU Wien within the HORA 3 research project in 2021. This involves high-resolution, hydrodynamic simulations all over Austria using the VRVis software Visdom.
Based on a large amount of time-dependent result data from the water simulations, novel 3D representations for the public beyond a mere surface representation on maps become possible. VRVis developed a web-based system for this purpose, which will be integrated into the HORA internet portal in 2022.
Understanding flood risks through lifelike interactive 3D scenarios
The 3D visualization process begins with the user entering an address, which identifies a plot of land and a building on it. Then, all spatial data that is required to display the focus building and the immediate neighborhood in the highest level of detail is loaded into the web service. The object-related flood risk and other relevant information such as the most severely affected parts of the building are then interactively displayed at the focus building. In addition to water depths, strong currents are also dangerous. These are highlighted as animated waves and foam on the three-dimensional water surface, based on reality.
Head of Integrated Simulations Group, Integrated Simulations
waser(at)vrvis.at +43 1 908 98 92 509Start: 03.2021
End Date: 12.2021
Institute for Hydraulic Engineering and Hydrology at the Vienna University of Technology (Prof. Günter Blöschl), Department of Geodesy and Geoinformation of the Vienna University of Technology, Engineering Office Günter Humer
Federal Ministry for Agriculture, Regions and Tourism
Austrian Insurance Association (VVO)
The HORA 3 project focuses on flood modelling for all rivers and streams in Austria. The results are detailed flood risk maps for different annual periods.
The Raincloud project's goal is to optimize and extend the simulation software Visdom to tackle the increasing challenges in water planning and disaster management in the face of climate change.
Heavy rainfall events are increasing throughout Europe. In the EU project RAINMAN, VRVis has developed an interactive model to visualize the course and consequences of possible flood scenarios caused by heavy rainfall for the city of Graz.
Visdom's hydrodynamic simulations provide precise water level predictions at any point on a water surface in the "PegelAlarm" app.
For many years we have been dealing with all aspects of hydrodynamic modelling. With our software Visdom we can model different scenarios and also offer this as a service.
We create a digital twin of a community and simulate weather events to identify high-risk buildings and infrastructure vulnerabilities.
Hands-on flood management with the Visdom decision software, which simulates and visualizes flood and heavy rain events.
Decision support system for floods and inundations for the trading district of Shenzen, China.
Flood protection through simulation and visualization: Reducing the effects of floods and communicating measures to the public.
