Detecção temporal de área urbana do município de Barcarena-PA utilizando imagens de média resolução espacial
The present work has an intention of analyze the urban growth of the municipality of Barcarena by means of the identification of exposed areas and urban areas through remote sensing techniques with satellite images of medium resolution. For 1986 and 1999 was used imagens of Landsat 5 TM satellite and for 2016 was used image of Landsat 8 OLI. Radiometric and atmospheric corrections were performed on all images. The image-by-image georeferencing was done using the image of 2016 of Landsat 8 OLI as a base to georeferencing the images of 1986 and 1999 of Landsat 5 TM. All the processes were generating in the software Envi 4.5 when occurred the digital image processing. In order to analyze the use and land cover in the municipality, was generate a post processing that consisted in a supervised classification. The classes mapped were dense vegetation, secondary vegetation exposed soil, urban area and water body. In software ArcGis 10.1 was accomplish the clipping of classification for study area and the calculation of mapped areas. Based on the data analyzed, was quantified the urban area in 1986, 1999 and 2016. The installation of mineral processing companies in Vila do Conde occurrences during the years of 1980 and 1990 resulted in population growth.