Avaliação da suscetibilidade a escorregamentos rasos com base na aplicação de estatística bivariada: resultados preliminares

Abstract

The aim of this paper was to define the shallowlandslides susceptibility on Caraguatatuba county, based onstatistical analysis of morphological parameters. Theproduction of morphological maps of curvature, aspect,hypsometry and slope were based on SRTM 30 m. From this,it was made a bivariate statistical analysis based oninformative value. Such index it is responsible to relatemorphological classes and shallow landslides from pastevents. The results showed that certain morphological classestend to be more susceptible to occurrence of the process. So,that a success rate of 78% of the final susceptibility map wasobtained. Thus, it was possible verify preliminary preferredclasses to landslide occurrence in the area, such resultdemonstrate the importance of future studies about landslidesand incorporation of other conditioning factors, such forexample geology.