1. Funded by: Project Compound partners: Co-operation partners executing organisation: 1 Federal Ministry of Education and Research (BMBF) Support Programme: Risk management of extreme flood events (RIMAX): Prediciton and management of flash floods in urban areas (URBAS) URBAS Prediction and management of flash floods in urban areas Project funded by the Federal Ministry of Education and Research BMBF (Germany) as a part of RIMAX „Risk management of extreme flood events“ Internet: http://www.urbanesturzfluten.de Internet: http://www.rimax.de

2. Funded by: Project Compound partners: Co-operation partners executing organisation: 2 Federal Ministry of Education and Research (BMBF) Support Programme: Risk management of extreme flood events (RIMAX): Prediciton and management of flash floods in urban areas (URBAS) Challenge and Techniques  Challenge  Climate change studies indicate growing frequency and intensity of flash floods in Western Europe  Little is known about the character of flasf floods (spatial distribution, frequency, typical damage)  No adequate forecast or warning systems  Flood protection and coping strategies referring to river flooding cannot be applied to flash floods  Techniques  Localisation and tracking of thunderstorm cells using radar  High resolution 2-D runoff simulation „in-between-buildings“ and in the sewer systems considering interactions between both systems

3. Funded by: Project Compound partners: Co-operation partners executing organisation: 3 Federal Ministry of Education and Research (BMBF) Support Programme: Risk management of extreme flood events (RIMAX): Prediciton and management of flash floods in urban areas (URBAS) Objectives and Practicability  Objectives and Results  Close analysis of case studies in 15 German municipalities  Investigation of meteorological parameters, runoff and damage of local flash floods  Hydro-meteorological investigation of precipitation and runoff using modern technologies such as the German Radar Network (KONRAD) from the German Weather Service (DWD) and high- resolution 2-D-runoff simulation models.  Improvement of forecast tools, recommendations for early warning, loss mitigation measures, disaster control etc.  Development of innovative, feasilble actions and mitigation measures for local authorities  Practicability  Valuable results for insurance industry, affected citizens and authorities, disaster control, urban planners and civil engineers

4. Funded by: Project Compound partners: Co-operation partners executing organisation: 4 Federal Ministry of Education and Research (BMBF) Support Programme: Risk management of extreme flood events (RIMAX): Prediciton and management of flash floods in urban areas (URBAS) Picture left hand side: KONRAD – tool for thunderstorm cell tracking Picture right hand side: Flash flood in Lohmar (Northrhine Westfalia)

5. Funded by: Project Compound partners: Co-operation partners executing organisation: 5 Federal Ministry of Education and Research (BMBF) Support Programme: Risk management of extreme flood events (RIMAX): Prediciton and management of flash floods in urban areas (URBAS) Location of case studies (green dots) and candidates (red dots) which may become case studies.