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Review article: Assessing the costs of natural hazards - state of the art and knowledge gaps

Abstract : Efficiently reducing natural hazard risks requires a thorough understanding of the costs of natural hazards. Current methods to assess these costs employ a variety of terminologies and approaches for different types of natural hazards and different impacted sectors. This may impede efforts to ascertain comprehensive and comparable cost figures. In order to strengthen the role of cost assessments in the development of integrated natural hazard management, a review of existing cost assessment approaches was undertaken. This review considers droughts, floods, coastal and Alpine hazards, and examines different cost types, namely direct tangible damages, losses due to business interruption, indirect damages, intangible effects, and the costs of risk mitigation. This paper provides an overview of the state-of-the-art cost assessment approaches and discusses key knowledge gaps. It shows that the application of cost assessments in practice is often incomplete and biased, as direct costs receive a relatively large amount of attention, while intangible and indirect effects are rarely considered. Furthermore, all parts of cost assessment entail considerable uncertainties due to insufficient or highly aggregated data sources, along with a lack of knowledge about the processes leading to damage and thus the appropriate models required. Recommendations are provided on how to reduce or handle these uncertainties by improving data sources and cost assessment methods. Further recommendations address how risk dynamics due to climate and socio-economic change can be better considered, how costs are distributed and risks transferred, and in what ways cost assessment can function as part of decision support.
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https://hal.archives-ouvertes.fr/hal-00945648
Contributor : Frédérique Bordignon <>
Submitted on : Wednesday, February 12, 2014 - 4:22:03 PM
Last modification on : Tuesday, June 15, 2021 - 2:57:07 PM

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Vincent Meyer, N. Becker, V. Markantonis, R. Schwarze, Jcjm Bergh, et al.. Review article: Assessing the costs of natural hazards - state of the art and knowledge gaps. Natural Hazards and Earth System Sciences, European Geosciences Union, 2013, 13 (5), pp.1351-1373. ⟨10.5194/nhess-13-1351-2013⟩. ⟨hal-00945648⟩

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