Mapeamento da Suscetibilidade a Movimentos de Massa utilizando Análise Estatística e Ferramentas de Geoprocessamento na Bacia do Rio Paquequer - Teresópolis (RJ)

• Autor(a) principal: Meirelles, Evelyn de Oliveira
• Data de Publicação: 2015
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: Biblioteca Digital de Teses e Dissertações da UERJ
• Texto Completo: http://www.bdtd.uerj.br/handle/1/7144
• topic: Landslide; Bivariate Statistical; AHP; Weighted-average; Susceptibility; Movimentos de Massa; Estatística Bivariada; AHP; Média Ponderada; Suscetibilidade; CNPQ::CIENCIAS EXATAS E DA TERRA::GEOCIENCIAS::GEOLOGIA

Among the natural phenomenon associated with disasters, landslide is the most active and impactful one. In Brazil, this fact is deepened by a set of components as the presence of high mountainous ranges associated with favourable climatic conditions, such as heavy rainfalls and improper land use. Highlands similar to the Regiao Serrana in the state of Rio de Janeiro, which region is object of the current study. Such areas are examples of this association. Regarding to the Regiao Serrana of Rio de Janeiro, it has been scenarios of many episodes of great damages in economic, environmental and social context. In doing so, the purpose of this study is to analyze the influence level of the constraints regarding to landslide events, related to the frequency and/or density of those, by creating a map of landslide susceptibilty for the Paquequer Basin. The study was based on the Bivariate statistical analysis and GIS techniques, and the last one was established through multi-criteria analysis tools like AHP (Analytical Hierarchy Process) and the Weighted Average. All selected conditions were correlated with the landslide inventory map and, from the results, weights were applied to each of those, generating a final map of susceptibility. The result was shown as satisfactory and coherent, for the analyzed area of this study