Probabilistic winter storm risk assessment for residential buildings in Germany |
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Authors: | Patrick Heneka Thomas Hofherr |
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Institution: | (1) Institute for Hydromechanics, University of Karlsruhe, Kaiserstr. 12, 76128 Karlsruhe, Germany;(2) Institute for Meteorology and Climate Research, University of Karlsruhe, Kaiserstr. 12, 76128 Karlsruhe, Germany;(3) Center for Disaster Management and Risk Reduction Technology, University of Karlsruhe, Hertzstr. 16, 76187 Karlsruhe, Germany |
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Abstract: | Losses resulting from winter storms contribute a significant part to the overall losses among all natural hazards in most
mid-latitude European countries. A realistic assessment of storm risk is therefore essential for prevention and coping measures.
The paper presents a framework for probabilistic storm risk assessment for residential buildings which is exemplarily performed
for Germany. Two different approaches are described, and results are presented. The hazard-based approach brings together
hazard, vulnerability and building assets to calculate risk curves for each community. The storm-based approach uses loss
information from past storm events to calculate statistical return periods of severe storms. As a result, a return period
of 83 years to the most severe storm series in 1990 is calculated. Average annual losses of €170 million to residential buildings
are calculated for all over Germany. The study demonstrates how the approaches complement each other and how validation is
performed. |
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