Journal cover Journal topic
Natural Hazards and Earth System Sciences An interactive open-access journal of the European Geosciences Union
Nat. Hazards Earth Syst. Sci., 18, 857-868, 2018
https://doi.org/10.5194/nhess-18-857-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
Research article
16 Mar 2018
The relationship between precipitation and insurance data for floods in a Mediterranean region (northeast Spain)
Maria Cortès1,2, Marco Turco1, Montserrat Llasat-Botija1,2, and Maria Carmen Llasat1,2 1Department of Applied Physics, University of Barcelona, Barcelona, 08028, Spain
2Water Research Institute (IdRA), University of Barcelona, Barcelona, 08001, Spain
Abstract. Floods in the Mediterranean region are often surface water floods, in which intense precipitation is usually the main driver. Determining the link between the causes and impacts of floods can make it easier to calculate the level of flood risk. However, up until now, the limitations in quantitative observations for flood-related damages have been a major obstacle when attempting to analyse flood risk in the Mediterranean. Flood-related insurance damage claims for the last 20 years could provide a proxy for flood impact, and this information is now available in the Mediterranean region of Catalonia, in northeast Spain. This means a comprehensive analysis of the links between flood drivers and impacts is now possible. The objective of this paper is to develop and evaluate a methodology to estimate flood damages from heavy precipitation in a Mediterranean region. Results show that our model is able to simulate the probability of a damaging event as a function of precipitation. The relationship between precipitation and damage provides insights into flood risk in the Mediterranean and is also promising for supporting flood management strategies.
Citation: Cortès, M., Turco, M., Llasat-Botija, M., and Llasat, M. C.: The relationship between precipitation and insurance data for floods in a Mediterranean region (northeast Spain), Nat. Hazards Earth Syst. Sci., 18, 857-868, https://doi.org/10.5194/nhess-18-857-2018, 2018.
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Short summary
The aim of this study is to develop and evaluate a methodology to estimate surface water flood damages from heavy precipitation in the Mediterranean region of study. The relationship between precipitation and insurance data has been assessed, using logistic regression models, to assess the probability of large monetary damages in relation to heavy precipitation events. Results show that our model is able to simulate the probability of a damaging event as a function of precipitation.
The aim of this study is to develop and evaluate a methodology to estimate surface water flood...
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