Exploring flash flood risk perception using PCA analysis: The case of Mindelo, S. Vicente (Cape Verde)
2020; Wiley; Volume: 186; Issue: 4 Linguagem: Inglês
10.1111/geoj.12357
ISSN1475-4959
Autores Tópico(s)Tropical and Extratropical Cyclones Research
ResumoSão Vicente Island is in the Republic of Cape Verde. It lies within the Sahelian zone and faces several natural risks, one of which is flash flooding. Based on a questionnaire entitled Flash Flood Risk Perception in Cape Verde, applied to 203 subjects, influence the behavioural decision making adopted by people when confronted with this natural hazard. A multivariate technique was conducted on the main dimensions (categorical principal components analysis, CATPCA) to identify the primary factors associated with the perception of flash flood risk. Results of this analysis suggest that education level and gender explain more than 50% of the observed variance. Respondents with higher education show greater knowledge about this type of natural risk, although they ascribe its occurrence to divine punishment. Men and women have different perceptions about flash flooding, its causal attributions, and support from public entities regarding planning policies. Prior experience mainly influences the perception of the personal consequences of flash flood events. The results show the relevance of introducing risk education into schools to raise awareness about the causes and consequences of flash floods and improve readiness and responses to this risk manifestation.
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