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- W1554299743 abstract "O objetivo deste trabalho foi caracterizar a dinâmica sazonal do cerrado, floresta estacional semidecidual e decidual nonorte do estado de Minas Gerais, Brasil. Series multitemporais dos indices de vegetacao NDVI (indice de vegetacao da diferencanormalizada) e EVI (indice de vegetacao melhorado) derivados do sensor MODIS, foram comparadas analisando o perfil temporal e os resultados de classificacao das imagens. Os resultados mostraram que: (1) Os indices de vegetacao estudados refletiram opadrao sazonal das fisionomias, diferenciando os periodos chuvosos e os periodos de seca; (2) a fisionomia floresta estacionaldecidual apresentou menores valores dos indices e maior variacao; (3) as fisionomias cerrado e floresta estacional semidecidualapresentaram alto valores dos indices e baixa variacao; (4) de acordo com os resultados das classificacoes o melhor indice para o mapeamento das fisionomias na area de estudo foi o NDVI, porem ambos podem ser usados para avaliar a dinâmica sazonal davegetacao; e (5) estudos precisam ser realizados explorando algoritmos de extracao de feicoes para melhorar a acuracidade do mapeamento das fisionomias cerrado, floresta decidua e semidecidua na area de estudo." @default.
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- W1554299743 date "2008-01-01" @default.
- W1554299743 modified "2023-10-15" @default.
- W1554299743 title "The assessment of vegetation seasonal dynamics using multitemporal NDVI and EVI images derived from modis" @default.
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