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• W4313452007 abstract "This study aims to analyze in an integrated way the application of morphometric indices elaborated in geographic information systems and aspects of environmental management of water resources for the Micro Watershed of Garças River, located in the state of Rondônia. It used images with Digital Elevation Models (DEM) obtained by TOPODATA and Landsat 8 images obtained by INPE (the Brazilian Institute for Space Research). Subsequently, with the aid of the QGIS 2.18.0 software, the watershed was delimited, the NDVI and the slope were calculated and, based on initial data, morphometric characteristics were calculated. The watershed has an area of 1621.101 km², perimeter of 438.661 km and length of 82.04 km, with altimetry ranging from 77.8 to 177.8 meters, and form factor of 0.24, which characterizes a rectangular shape, indicating that the basin has a low propensity for floods. NDVI ranged from 0.187 to 0.49, and it has a coverage area of native vegetation superior to that of anthropized areas. Thus, the watershed morphometric study, together with data on use and occupation, provide essential elements for the planning of actions to be carried out in the watershed. Integração de tecnlogia e politica: modelando caracterização moformétrica e mudança de uso da terra usando redes neurais artificiais na Amazônia Ocidental RESUMOEste estudo tem como objetivo analisar de forma integrada a aplicação de índices morfométricos elaborados em sistemas de informações geográficas e aspectos de gestão ambiental de recursos hídricos para a Microbacia Hidrográfica do Rio Garças, localizada no estado de Rondônia. Foram utilizadas imagens com Modelos Digitais de Elevação (DEM) obtidas pelo TOPODATA e imagens Landsat 8 obtidas pelo INPE (Instituto Brasileiro de Pesquisas Espaciais). Posteriormente, com o auxílio do software QGIS 2.18.0, delimitou-se a bacia hidrográfica, calculou-se o NDVI e a declividade e, com base nos dados iniciais, foram calculadas as características morfométricas. A bacia possui área de 1621,101 km², perímetro de 438,661 km e extensão de 82,04 km, com altimetria variando de 77,8 a 177,8 metros, e fator de forma de 0,24, o que caracteriza um formato retangular, indicando que a bacia possui baixa propensão a inundações. . O NDVI variou de 0,187 a 0,49, e possui uma área de cobertura de vegetação nativa superior à de áreas antropizadas. Assim, o estudo morfométrico da bacia, juntamente com os dados de uso e ocupação, fornecem elementos essenciais para o planejamento das ações a serem realizadas na bacia.Palavras-chave: Morfometria. Gestão de bacias hidrográficas. GIS, autômatos celulares predição de mudança de markov" @default.
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• W4313452007 date "2022-12-09" @default.
• W4313452007 modified "2023-09-30" @default.
• W4313452007 title "Technology and policy integration: modelling morphometric characterization and land use change using artificial neural networks in the western amazon" @default.
• W4313452007 doi "https://doi.org/10.26848/rbgf.v15.6.p3189-3201" @default.
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