NDLI: Mapeamento do uso da terra nos municípios de Janaúba e Nova Porteirinha (MG) usando dados de sensoriamento remoto

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Mapeamento do uso da terra nos municípios de Janaúba e Nova Porteirinha (MG) usando dados de sensoriamento remoto

Content Provider	Semantic Scholar
Author	Fonseca, Samuel Ferreira Da Hermano, Vívian Mendes Silva, Alexandre Christófaro
Copyright Year	2016
Abstract	Resumo - O avanco constante das geotecnologias possibilita analise espacial cada vez mais precisa. Aplicativos como Google maps e Google earth ™ democratizam o acesso ao conteudo cartografico, possibilita viagens virtuais a campo e subsidia a elaboracao e correcao de mapas tematicos quando necessario. O objetivo deste trabalho e apresentar o mapeamento do uso e cobertura do solo nos municipios de Janauba/MG e Nova Porteirinha/MG, apropriando-se de dados de sensoriamento remoto orbital. Foi realizada pesquisa bibliografica, fotointerpretacao em tela do computador e elaboracao de mapa tematico. Aquisicao de imagem Landsat 8, captada pelo sensor (OLI) a qual foi submetida a classificacao supervisionada por meio do algoritmo MAXVER. Posteriormente foi gerada a Matriz de confusao e calculado Coeficiente Kappa, Exatidao Global alem de outros parâmetros estatisticos inerentes a confiabilidade da classificacao. Em Nova Porteirinha/MG 44,50% do seu territorio (65,39 Km²) encontra-se ocupado com plantios de bananas. Janauba/MG apresenta 32,58% (703,92 Km²) de seu territorio com vegetacao nativa e 4,31 % (93,20 Km²) ocupado com plantios de bananas. Esses valores foram encontrados por meio da classificacao automatica, a qual apresentou Coeficiente Kappa e Exatidao Global de 0,995 e 99,71% respectivamente. Valores elevados como estes indicam alta confiabilidade da classificacao elaborada. Palavras-chave: Sensoriamento remoto. Geoprocessamento. Mapeamento tematico. Janauba. Porteirinha. Minas Gerais. Use and land cover mapping in the municipalities of Janauba and Nova Porteirinha (MG) using remote sensing data Abstract - The steady advance of geo spatial analysis enables increasingly precise. Applications like Google Maps and Google Earth ™ democratize access to cartographic content, enables virtual field trips and subsidizes the preparation and correction of thematic maps when needed. The objective of this paper is to present the use mapping and soil cover in the municipalities of Janauba/MG and Nova Porteirinha/MG, appropriating remote sensing data. Literature search was performed photo interpretation on the computer screen and elaboration of thematic map. Image acquisition Landsat 8, captured by the sensor (OLI) which was subjected to supervised classification through MAXVER algorithm. Later it was generated matrix of confusion and Kappa coefficient calculated, Global Accuracy and other statistical parameters related to the reliability of the classification. Nova Porteirinha/MG 44.50% of its territory (65.39 sq km) is busy with banana plantations. Janauba/MG has 32.58% (703.92 sq km) of territory with native vegetation and 4.31% (93.20 sq km) busy with banana plantations. These values were found through automatic classification, which presented Kappa Coefficient and Global accuracy of 0.995 and 99.71% respectively. High as they indicate high reliability of the elaborate classification. Keywords: Remote Sensing. Geoprocessing. Thematic mapping. Janauba. Porteirinha. Minas Gerais. Brazil
Starting Page	103
Ending Page	119
Page Count	17
File Format	PDF HTM / HTML
Volume Number	5
Alternate Webpage(s)	http://www.revista.ueg.br/index.php/elisee/article/download/4195/3418
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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