MAPAS DE INUNDAÇÃO A PARTIR DO GEOPROCESSAMENTO: Estudo de caso no município de Três Corações-MG

Abstract

The objective of this research is to demonstrate, through maps, areas vulnerable to floods in the municipality of Três Corações-MG. Flood maps generated through geoprocessing are tools that make it possible to delimit surfaces exposed to risks in periods of floods, and prove to be excellent alternatives in the prevention, control and management of cities, as well as in urban planning. The city of Três Corações is located in the south of the state of Minas Gerais, and frequently goes through disorders caused by floods from intense and long-lasting rains in the region. Such an approach is justified due to the elevation of the water level of Rio Verde and Rio do Peixe in the 2000s, practically stopping the activities of the municipality, generating several socioeconomic and environmental impacts. Predicting risk and aggravation in advance of floods, transmits security to society and minimizes impacts. In order to prepare the maps, it was necessary to capture an image of the geographically delimited municipality (IBGE), demarcating the route of the hydrographic basins that cross the municipal urban area; interview with civil defense coordinator of the municipality who provided data, reports and records of the flood events that occurred in previous years and application of computer programs such as: Google Earth PRO, Global Mapper, AutoCAD to prepare the results. The application of geoprocessing proved areas that are affected by recurrent floods. It appears that the municipality developed without planning due to a dense urbanized area, consisting of public and private residences and institutions, being affected in the floods, including the city council. It concluded that, through the images, that neighborhoods of different classes, even, the city center are victims of floods.