Uso das geotecnologias como ferramentas na gestão de vulnerabilidade a inundação na sede do município de Tucuruí/PA

Abstract

Currently, several Brazilian municipalities suffer from recurring natural disasters, the media reports such events daily, especially floods occurring in urban areas. Floods cause infrastructure and urbanization problems around overflow sites. This work aims to present orthorectified and georeferenced products for planning mitigation measures to reduce impacts in areas susceptible to flooding in the municipality of Tucuruí in Pará, on the banks of the Tocantins River. By highlighting the diversity of products resulting from the applicability of geotechnologies, through the aerial survey methodology, with digital image processing to generate elevation and orthomosaic models, enabling the vectorization of the mapped area, since the use of this set of sciences and techniques become effective tools for analyzing and mapping locations and probable situations of natural disasters, through the capture of 1,460 orthophotos, which resulted in the digital model of the terrain, presenting the slope of the location and the quantity of 71.33 hectares of area with probability the flood, along with the identification of 192 roads within the mapped area.