MAPEAMENTO DOS DOMICÍLIOS EM RISCO DE INUNDAÇÃO: UM ESTUDO UTILIZANDO DADOS MULTIFINALITÁRIOS NA BACIA HIDROGRÁFICA DO RIO SUZANA, ERECHIM, RS

• Autor(a) principal: Furlan, André Ricardo
• Data de Publicação: 2021
• Outros Autores: Trentin, Romario
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Revista Geografar
• Texto Completo: https://revistas.ufpr.br/geografar/article/view/79076
• topic: SIGs; Perigo; Vulnerabilidade.

Technological advances have developed at an accelerated level, and in this sense, the importance of using GIS for geographic studies stands out. Geography, as a science concerned with spatialization, uses these technologies for the development of their analysis. In this way, the present work proposes to present a methodology for mapping flood risk areas, using a multifunctional registry, with the household as reference. Based on field work carried out in the watershed, it was possible to characterize and draw up a table of variables that correspond to hazard and vulnerability, thus being possible to assign values to these data. The final step consists in tabulating the crossing of data from the correlation matrix, to reach the definition and risk analysis. Thus, it was feasible to perform a household-level analysis, presenting flood risk mapping that contributes to the implementation of environmental management of the watershed. As a result, it was observed the existence of 54 households in a situation of hazard, located in flat areas near the old fluvial channels, which are currently canalized and buffered. After tabulation of the collected data, it was found that the largest portion of households in this area are conditioned to high risk.