Inundação e vulnerabilidade socioeconômica na bacia hidrográfica Caranã (BHC): aspectos metodológicos para a cidade de Boa Vista-RR.

In geography, studies on vulnerability have an important role in relation to natural disasters, especially in places where the volume of data is scarce, such as the northern Amazon. Based on this principle, the research sought to analyze and define the areas of socioeconomic vulnerability in the Caranã Watershed (BHC), Boa Vista-RR. The methodology of this study was divided into three stages: (I) Survey of secondary data such as articles, books, magazines, dissertations, theses, electronic journals and satellite images; (II) survey of primary data that consisted of various field activities in order to collect geographical coordinates, digital images and panoramic images; (III) laboratory stage that consisted of synthesizing field data to create the geographic and statistical database. The delimitation of vulnerable socioeconomic areas was processed using Arcgis 10.3 software, based on the procedure for weighting socioeconomic variables. The results showed that the areas with the highest degree of socioeconomic vulnerability are located in the low course of the Caranã stream, BHC's main watercourse, being observed in the neighborhoods Caranã, Jardim Caranã, União and Cauamé. To reverse this process, structural and non-structural measures are needed to reduce these vulnerable areas. [ABSTRACT FROM AUTHOR]