|TITLE||RISK FOR INFRASTRUCTURE FROM EXTREME PRECIPITATION IN THE MEDITERRANEAN REGION|
|AUTHORS||Katrin M. Nissen (1)|Uwe Ulbrich (1)|
- Institute for Meteorology, Freie Universität Berlin, Berlin, Germany
|ABSTRACT||The EU project RAIN (Risk Analysis of Infrastructure Networks in response to extreme weather) sets
out to analyse the risk of extreme weather for the infrastructure in Europe. One aim of the project is to create pan-European gridded data sets of extreme weather probability. Within the project, the Free University of Berlin analyses extreme precipitation, which can pose a risk on infrastructure. The potential to predict such events on the short, medium and seasonal range is investigated and the effect of climate change is analysed.
Hydrological structures such as drainage systems and dykes are supposed to protect infrastructure from damage. They are usually designed to withhold events with a specified return period. The corresponding precipitation amounts are determined using design rainfall statistics from local historical data. These statistics summarise the relationships of the most fundamental properties of extreme rainfall (rainfall intensities for different durations and return periods).
In order to detect rainfall events that can pose a thread on infrastructure networks, rainfall exceeding the hydrological design amounts is identified. The poster explains the method for the detection of such events and presents examples for the Mediterranean region based on the E-OBS data set.|