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Natural Hazards and Earth System Sciences An interactive open-access journal of the European Geosciences Union
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Volume 14, issue 8 | Copyright

Special issue: Flood ris​k analysis and integ​rated management

Nat. Hazards Earth Syst. Sci., 14, 2105-2117, 2014
https://doi.org/10.5194/nhess-14-2105-2014
© Author(s) 2014. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 19 Aug 2014

Research article | 19 Aug 2014

Assessment of the physical flood susceptibility of buildings on a large scale – conceptual and methodological frameworks

A. Blanco-Vogt1 and J. Schanze1,2 A. Blanco-Vogt and J. Schanze
  • 1Chair of Environmental Development and Risk Management, Faculty of Environmental Sciences, Technische Universität Dresden, Dresden, Germany
  • 2Leibniz Institute of Ecological Urban and Regional Development (IOER), Dresden, Germany

Abstract. There are various approaches available for assessing the flood vulnerability and damage to buildings and critical infrastructure. They cover pre- and post-event methods for different scales. However, there can hardly be found any method that allows for a large-scale pre-event assessment of the built structures with a high resolution. To make advancements in this respect, the paper presents, first, a conceptual framework for understanding the physical flood susceptibility of buildings and, second, a methodological framework for its assessment. The latter ranges from semi-automatic extraction of buildings, mainly from remote sensing with a subsequent classification and systematic characterisation, to the assessment of the physical flood susceptibility on the basis of depth–impact functions. The work shows results of the methodology's implementation and testing in a settlement of the city of Magangué, along the Magdalena River in Colombia.

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