Assessing fluvial flood risk in urban environments: a case study Elisa Longo

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(1)E3S Web of Conferences 7, 11007 (2016) FLOODrisk 2016 - 3rd European Conference on Flood Risk Management. DOI: 10.1051/ e3sconf/2016 0711007. Assessing fluvial flood risk in urban environments: a case study 1,a. 1. 2. Elisa Longo , Giuseppe Tito Aronica , Giuliano Di Baldassarre and Micah Mukolwe. 3. 1. Messina University, Department of Engineering, 98166 Messina, Italy Uppsala University, Department of Earth Sciences, 75236 Uppsala, Sweden UNESCO-IHE, Institute for Water Education, 2611 AX Delft, Netherlands. 2 3. Abstract. Nowadays, floods are among the most impactful calamities regarding costs. Looking at the natural hazards damage data collected in the International Disaster Database (EM-DAT), it is observable a significant increase over the past four decades of both frequency of floods and associated costs. Similarly, dramatic trends are also found by analyzing other types of flood losses, such as the number of people affected by floods, homeless, injured or killed.To deal with the aforementioned rise of flood risk, more and more efforts are being made to promote integrated flood risk management, for example, the Flood Directive 2007/60/EC. The main goals of this research are the estimation of flood damages using the KULTURisk methodology and the comparing of the projected costs with the observed one. The case study is the 2002 flood in Eilenburg. According to KULTURisk methodology, two major classes of data are considered to evaluate flood risk damage: hydraulic data as regards Hazard and economic information to assess Exposure and Vulnerability This study shows the possibility to extend the lesson learned with the Eilenburg case study in other similar contexts.. 1 Introduction The economic impact of floods has grown significantly over the past four decades. In particular, looking at the natural hazards damage data provided by the International Disaster Database [1] one can see a significant increase in terms of frequency of floods and related costs (Figure 1). Furthermore, similar trends could be also appreciated by analyzing other types of flood losses, such as the number of people affected by floods, homeless, injured or killed. Figure 1. a) Evolution of the number of floods over the last forty years and b) cost trends associated with them..

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(198) ! Fabio P., Novel techniques for incorporating uncertainty concepts in flood risk mapping, Ph.D. dissertation, The University of Palermo, Palermo, 2010 Giupponi C., Mojtahed V., Gain A. K., Balbi S. & Biscaro C. Integrated Risk Assessment of Water Related Processes, HydroǦMeteorological Hazards, and Disasters, ed: Paolo Paron & Giuliano Di Baldassarre, Elsevier Book series on Hazards and Disasters, Forthcoming 2014. Aronica et al 2008 Apel H., Aronica G. T., Kreibich H., Thieken A. H. , Flood risk analyses " how detailed do we need to be?, Natural Hazards and Earth System Sciences, 2009, 49:79"98 Social vulnerability and the 2002 flood - COUNTRY REPORT GERMANY (MULDE RIVER), November 2006, Floodsite.

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