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Open AccessEditor’s ChoiceArticle

Flood Risk Mapping Worldwide: A Flexible Methodology and Toolbox

Department of Civil Engineering, Ghent University, Valentin Vaerwyckweg 1, 9000 Ghent, Belgium
Antea Group Belgium, Buchtenstraat 9, 9051 Ghent, Belgium
Department of Geography, Ghent University, Krijgslaan 281, 9000 Ghent, Belgium
Author to whom correspondence should be addressed.
Water 2019, 11(11), 2371;
Received: 29 August 2019 / Revised: 23 October 2019 / Accepted: 7 November 2019 / Published: 13 November 2019
(This article belongs to the Special Issue Selected Papers from 2019 World Water Week)
Flood risk assessments predict the potential consequences of flooding, leading to more effective risk management and strengthening resilience. However, adequate assessments rely on large quantities of high-quality input data. Developing regions lack reliable data or funds to acquire them. Therefore, this research has developed a flexible, low-cost methodology for mapping flood hazard, vulnerability and risk. A generic methodology was developed and customized for freely available data with global coverage, enabling risk assessment worldwide. The default workflow can be enriched with region-specific information when available. The practical application is assured by a modular toolbox developed on GDAL and PCRASTER. This toolbox was tested for the catchment of the river Moustiques, Haiti, for which several flood hazard maps were developed. Then, the toolbox was used to create social, economic and physical vulnerability maps. These were combined with the hazard maps to create the three corresponding flood risk maps. After creating these with the default data, more detailed information, gathered during field work, was added to verify the results of the basic workflow. These first tests of the developed toolbox show promising results. The toolbox allows policy makers in developing countries to perform reliable flood risk assessments and generate the necessary maps. View Full-Text
Keywords: flood hazard map; vulnerability; flood risk; open source; Haiti flood hazard map; vulnerability; flood risk; open source; Haiti
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MDPI and ACS Style

Glas, H.; Rocabado, I.; Huysentruyt, S.; Maroy, E.; Salazar Cortez, D.; Coorevits, K.; De Maeyer, P.; Deruyter, G. Flood Risk Mapping Worldwide: A Flexible Methodology and Toolbox. Water 2019, 11, 2371.

AMA Style

Glas H, Rocabado I, Huysentruyt S, Maroy E, Salazar Cortez D, Coorevits K, De Maeyer P, Deruyter G. Flood Risk Mapping Worldwide: A Flexible Methodology and Toolbox. Water. 2019; 11(11):2371.

Chicago/Turabian Style

Glas, Hanne; Rocabado, Ivan; Huysentruyt, Steven; Maroy, Edith; Salazar Cortez, Danitza; Coorevits, Kobe; De Maeyer, Philippe; Deruyter, Greet. 2019. "Flood Risk Mapping Worldwide: A Flexible Methodology and Toolbox" Water 11, no. 11: 2371.

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