Áreas potenciais a deslizamentos no município de Feliz Deserto, Alagoas – Brasil

Abstract

Environmental analysis using geoprocessing is increasingly necessary, given the technological evolution and the large volume of available data, which bring reality closer to Geographic Information Systems (SGIs). The research aimed to analyze the current situation and environmental conditions of the municipality of Feliz Deserto, located in the state of Alagoas-Brazil, in search of areas with potential for the occurrence of natural disasters, aiming to support emergency actions of environmental surveillance and control. territorial planning. Due to the new Coronavirus pandemic, it was not possible to carry out the research in loco, therefore, the analysis was carried out in the office. Thus, the results were obtained by geoprocessing, associated with a Geographic Information System. For this purpose, the database of the municipality of Feliz Deserto was used. On this basis, the variables (thematic maps) structured in the Geoenvironmental Analysis System - SAGA - UFRJ were selected, with environmental assessment for the occurrence of landslides in that municipality. In view of the identified environmental situation and the analysis of the consistency of the database collected, it was necessary to use satellite images and the analysis of socioeconomic data from the Brazilian Institute of Geography and Statistics - IBGE. The research made it possible to understand the socioeconomic dynamics of Feliz Deserto. The results obtained by geoprocessing record areas of very high, high and low potential landslides, demonstrating the presence of the phenomenon. The different areas of occurrence of landslides come in different sizes and are dispersed throughout the municipality. With the results obtained, it is possible to contribute to their territorial planning and support surveillance interventions and socio-environmental control, allowing to know their environmental conditions regarding the potentially investigated event.