Assessment of intangible losses in flood damage calculations: extending LATIS

Authors: Jochem Beullens*, Ghent University, Philippe De Maeyer, Ghent University, Silke Broidioi, Flanders Hydraulics Research
Topics: Hazards, Risks, and Disasters, Hazards and Vulnerability
Keywords: LATIS, intangible losses, floods
Session Type: Paper
Day: 4/11/2018
Start / End Time: 8:00 AM / 9:40 AM
Room: Napoleon B1, Sheraton 3rd Floor
Presentation File: No File Uploaded

Flanders Hydraulics Research and Ghent University (Department of Geography) jointly developed a methodology for quantifying economic damage and risk due to floods. This methodology is based on land use information, socio-economic data and damage functions and makes it possible to determine the economic damage of a certain flood scenario. All algorithms are implemented in the GIS tool LATIS. Besides the tangible losses, the only intangible loss considered in the current tool is the loss of life. Other social losses, cultural and ecological losses are not yet included. In this research a methodology is established to provide indications of social, cultural and ecological losses due to floods in the region of Flanders (Belgium). Existing methodologies for quantifying social, cultural and ecological impact of flood hazards were explored in international literature. Based on this literature review and the available data for Flanders, indicators were selected that characterize (i) the social vulnerability of the Flemish population, (ii) the vulnerability of the cultural heritage and (iii) the ecological vulnerability of vegetation types due to flooding. Social, cultural and ecological vulnerability indexes are derived from the combination of their vulnerability indicators. These indexes can be compiled for the whole territory of Flanders and will represent the maximum social, cultural and ecological vulnerability. When the maximum social, cultural and ecological vulnerability index is combined with flood characteristics and the number of people affected (only for social impact), it is possible to quantify the impact of a certain flood hazard.

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