Análise das alterações do uso e cobertura do solo do município de Congonhas através da classificação de imagens de satélite

Abstract

This study seeks to identify and analyze the changes in land cover and use at Congonhas form 1987 to 2010 by Remote Sensing and Geoprocessing. Urban sprawl and mining have brought greatimpact to the region of Congonhas, which are reflected not only in the local economy, bringing also changes in the land cover. The proposed methodology to achieve that goal is, at first, in image classification of Landsat TM 5, obtained from different satellite passes (1987 and 2010) and the preparation of their maps of Use and Land Cover. Subsequently, these two maps were overlaid and compared, identifying the changes occurring during the period. The temporal analysis of land coverand use at Congonhas, despite its limitations, showed satisfactory results, allowing to give an overview of the process of urban expansion and mining activities that occurred during the period. This result has proved a great tool in the process of urban planning and management, allowing not only locate the various activities in the territory, but also to analyze their characteristics and patterns of evolution