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Quantitative micro-scale flood risk assessment in a section of the Trotuș River, Romania
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Orientador(es)
Resumo(s)
This paper focuses on the estimation of direct damages caused by three flood scenarios with different return
periods in the section Făgetul de Sus – Ghimeş – Palanca Pass of Trotuș River, with the aim of highlighting the
need of improved land use plans. The damage for three land use classes (residential building, infrastructure and
agriculture) were estimated using the damage curves developed by the European Joint Research Centre (JRC) as
well as site specific maximum damage values. The data were processed with the help of the ArcMap 10.2
software and FloodRisk tool from QGIS software. Furthermore, the flood risk was assessed using the damage –
probability curves, which associates the damage with the corresponding frequency of occurrence. This method
was identified and adapted to the characteristics of the study area in order to develop a methodology of flood
risk assessment that is answering the question: does the lack of land use plans increase the vulnerability and the
flood damage? The results showed that the greatest damages are registered for the residential building land use
class for a flood probability of 0.001. In this case the damages reach up to 60% on the scale range of deterioration factor, the total damage value being 2 million euros. For the same hazard probability the total registered damage value for roads is 7500 euro, for railways is around 12,000 euro, while for agriculture is around
84,000 euro. These results highlight the need of protection measures and land use plans development and
implementation. Regarding the protection measures we consider that the egalitarianism would be the concept
that should be applied in the study area and also an improved cooperation between government, specialized
agencies and local authorities at local level would lead to a more efficient flood risk management process. The
proposed methodology can be applied for micro-scale analysis, providing quantitative results regarding the flood
damage and flood risk assessment. It includes a detailed vulnerability analysis of the elements-at-risk with the
aim of developing a more comprehensive approach of flood risk assessment.
Descrição
Palavras-chave
Flood risk assessment Land use Flood damages Vulnerability assessment
Contexto Educativo
Citação
Țîncu, R., Zêzere, J. L., Crăciun, I., Lazăr, G., & Lazăr, I. (2020). Quantitative micro-scale flood risk assessment in a section of the Trotuș River, Romania. Land Use Policy, 95, 103881. https://doi.org/10.1016/j.landusepol.2019.02.040
Editora
Elsevier