A carregar...
Publicação
Improving Estuarine Flood Risk Knowledge through Documentary Data Using Multiple Correspondence Analysis
| Nome: | Descrição: | Tamanho: | Formato: | |
|---|---|---|---|---|
| 5.52 MB | Adobe PDF |
Orientador(es)
Resumo(s)
Estuarine margins are usually heavily occupied areas that are commonly affected by
compound flooding triggers originating from different sources (e.g., coastal, fluvial, and pluvial).
Therefore, estuarine flood management remains a challenge due to the need to combine the distinct
dimensions of flood triggers and damages. Past flood data are critical for improve our understanding
of flood risks in these areas, while providing the basis for a preliminary flood risk assessment, as
required by European Floods Directive. This paper presents a spin-off database of estuarine flood
events built upon previously existing databases and a framework for working with qualitative past
flood information using multiple correspondence analysis. The methodology is presented, with steps
ranging from a spin-off database building process to information extraction techniques, and the
statistical method used was further explored through the study of information acquired from the
categories and their relation to the dimensions. This work enabled the extraction of the most relevant
estuarine flood risk indicators and demonstrates the transversal importance of triggers, since they are
of utmost importance for the characterization of estuarine flood risks. The results showed a relation
between sets of triggers and damages that are related to estuarine margin land use, demonstrating
their ability to inform flood risk management options. This work provides a consistent and coherent
approach to use qualitative information on past floods, as a useful contribution in the context of
scarce data, where measured and documentary data are not simultaneously available
Descrição
Palavras-chave
estuaries floods database historical sources flood risk management
Contexto Educativo
Citação
Rilo, A.; Tavares, A.O.; Freire, P.; Zêzere, J.L.; Haigh, I.D. Improving Estuarine Flood Risk Knowledge through Documentary Data Using Multiple Correspondence Analysis. Water 2022, 14, 3161
Editora
MDPI