Identification of urban flood vulnerability in eastern Slovakia by mapping the potential natural sources of flooding - implications for territorial planning

Lenka Gaňová, Martina Zeleňáková, Pavol Purcz, Daniel Constantin Diaconu, Tomáš Orfánus, Žofia Kuzevičová

Rezumat/Abstract. The aim of the presented study was to assess the distribution of flood-risk potential (FRP) at the regional scale. A progressive approach integrating geographical information system (GIS) with two different methods of multicriteria analysis (MCA) – analytic hierarchy process (AHP) and ranking method (RM) was applied in the process. In the analyses, the most causative factors for flooding were taken into account, urban spatial planning, such as soil type, daily precipitation, land use, size of the catchment and average basin slope. A case study of flood vulnerability identification in the Hornád and Bodrog catchments’ areas in eastern Slovakia has been employed to illustrate two different approaches. Spatial estimation of FRP should be one of the basic steps for complex geoecological evaluation and delimitation of landscape considering water resources management, groundwater pollution, prediction of soil erosion and sediment transport and some other important landscape-ecological factors. The obtained results indicate that RM method shows better results as related to the existing floods in the recent years in Bodrog and Hornád catchment than AHP method.

Cuvinte cheie/Key words: territorial planning, flood vulnerability, geographical information system, multicriteria analysis

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