2024-02-062024-02-062023-06-30BERNARDINO, Tales Emanuel Silva; RIBEIRO, Hugo José. Análise multitemporal do uso e cobertura do solo, lâmina d’água e frequência de fogo da região hidrográfica do Tocantins-Araguaia. REEC - Revista Eletrônica de Engenharia Civil, Goiânia, v. 19, n. 1, p. 252-267. 2023. DOI: 10.5216/reec.v19i1.75082. Disponível em: https://revistas.ufg.br/reec/article/view/75082/39988. Acesso em: 30 jan. 2024.e- 2179-0612http://repositorio.bc.ufg.br//handle/ri/24300The Hydrographic Region of Tocantins –Araguaia is an important region of socioeconomic development in the country, corresponding to 11% of the national territorial area and is the second largest region in terms of water availability. In recent decades there has been an increase in the demand for this resource, which raises an alert about the negative impacts arising from its inadequate management. The objective of this study was to analyze the multitemporal behavior of land use and cover, water depth dimensions and fire frequency of the Tocantins-Araguaia -MHTA hydrographic macro-region and its mesoregions, using data made available by the Mapbiomas Platform between the years of 1985 and 2020. For this, raster data available on the platform were used, which were classified and processed using GIS tools, in order to extract the information necessary for the study. The results showed a significant decrease in the water depth in the Araguaia hydrographic mesoregion –MHA, a process that has intensified due to the increase in the conversion of land use classes, mainly for pasture and cultivation activities. The other regions, despite not showing significant changes in water depth, had undergone major land use conversion processes that impacted the increase in fire frequency, causing significant losses to the region's biological diversity.porAcesso AbertoRegião hidrográfica Tocantins-AraguaiaSensoriamento remotoMapbiomasFrequência de fogoRecursos hídricosUso e cobertura do soloTocantins -Araguaia hydrographic regionRemote sensingMapbiomasFire frequencyWater resourcesLand use and coveArtigo10.5216/reec.v19i1.75082