ANÁLISE DE SÉRIES TEMPORAIS MODIS E TRMM EM PLANTIOS DE EUCALIPTO
Item
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Título
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ANÁLISE DE SÉRIES TEMPORAIS MODIS E TRMM EM PLANTIOS DE EUCALIPTO
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Mercator
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UNIPAMPA
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UFMT
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Description
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UFRGS
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Autor
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Aline Biasoli Trentin
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Carline Biasoli Trentin
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Dejanira Luderitz Saldanha
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Tatiana Mora Kuplich
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Assunto
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MODIS
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povoamentos de eucalipto
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índices espectrais
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Abstract
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The objective of this work was to analyze and compare spectral indexes in eucalyptus plantations andcorrelate them with precipitation data for the period from 2003 to 2012, in order to assess whether climatechange has an influence on vegetation phenology. The methodology entailed obtaining the mean spectralindexes (NDVI, EVI and GPP) of MODIS images and elaborating the temporal profiles of the eucalyptusvegetation, for both cloned seedlings and those grown from seeds. These profiles were correlated withTRMM precipitation data. The results showed NDVI values higher than the EVI, although a clearly definedseasonality was not present, whereas the GPP demonstrated a well-defined seasonal behavior in allof the years. The correlation between the spectral indices and the precipitation had representative resultsfor some years, including El Niño and La Niña periods. It was concluded that MODIS products allow theevaluation of phenological cycles in eucalyptus plantations, principally for the planting and cutting phases.Keywords: Spectral indices; MODIS sensor; Stands of eucalyptus.
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volume
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17
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Date
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2018
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título curto
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INPE
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Língua
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pt
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issn
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1984-2201
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