Utilize este identificador para referenciar este registo: http://hdl.handle.net/10451/27545
Título: Assessment of stream flood susceptibility: a cross-analysis between model results and flood losses
Autor: Santos, P. P.
Reis, E.
Palavras-chave: damage data
flood
historical records
preliminary assessment
stream
susceptibility
Data: 2017
Editora: John Wiley & Sons Ltd and The Chartered Institution of Water and Environmental Management (CIWEM)
Citação: Santos, P.P. and Reis, E. (2017), Assessment of stream flood susceptibility: a cross-analysis between model results and flood losses. J Flood Risk Management. doi:10.1111/jfr3.12290
Resumo: This study describes a model, which classifies the susceptibility of streams to flooding. Three flood predisposing factors are considered: average slope, accumulated flow, and average relative permeability. Multi-criteria analysis provided results for 11 combinations of weights. Results were compared with the historical record of flood losses reported in newspapers between 1935 and 2010. Lithology appears to function as a relevant factor in differentiating the major sub-basins. Eighty-six percent of flood loss occurrences took place in streams identified by the model. Analysing stream flood susceptibility and flood loss data allow the identification of locations where disaster causes should be searched, apart from those explained by the predisposing factors. The assessment of streams’ flood susceptibility through this methodology is useful in (i) data-rich contexts where additional factors may be considered and the availability of historical records helps to validate the model and (ii) data-poor contexts where data to run the model is easily found.
Peer review: yes
URI: http://hdl.handle.net/10451/27545
DOI: 10.1111/jfr3.12290
ISSN: 1753-318X
Versão do Editor: http://onlinelibrary.wiley.com/doi/10.1111/jfr3.12290/full
Aparece nas colecções:IGOT - Artigos em Revistas Internacionais

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