Please use this identifier to cite or link to this item: http://repositorio.ufla.br/jspui/handle/1/12019
Title: The assessment of vegetation seasonal dynamics using multitemporal NDVI and EVI images derived from MODIS
Other Titles: Caracterização da dinâmica sazonal da vegetação usando imagens multitemporais NDVI e EVI derivadas do sensor MODIS
Keywords: Remote sensing
Time series
Vegetation indies
Sensoriamento remoto
Série multitemporal
Índices de vegetação
Issue Date: 2008
Publisher: Universidade Federal de Lavras
Citation: SILVEIRA, E. M. de O. et al. The assessment of vegetation seasonal dynamics using multitemporal NDVI and EVI images derived from MODIS. Cerne, Lavras, v. 14, n. 2, p. 177-184, abr./jun. 2008.
Abstract: The objectives of this work were to characterize seasonal dynamics of cerrado, deciduous and semideciduous forests in the north of Minas Gerais, Brazil. Time series of NDVI (Normalized Difference Vegetation Index) and EVI (Enhanced Vegetation Index) derived from MODIS sensor, were compared by analyzing temporal profiles and image classification results. The results showed that: (1) there is an agreement between vegetation indexes and the monthly precipitation pattern; (2) deciduous forest showed the lowest values and the highest variation; (3) cerrado and the semideciduous forest presented higher values and lower variation; (4) based on the classification accuracies the best vegetation index for mapping the vegetation classes in the study area was the NDVI, however both indexes might be used to assess the vegetation seasonal dynamic; and (5) further research need to be carried out exploring the use of feature extractions algorithms to improve classification accuracy of cerrado, semideciduous and deciduos forests in Minas Gerais, Brazil. Key words: Remote sensi
URI: http://repositorio.ufla.br/jspui/handle/1/12019
Appears in Collections:DCF - Artigos publicados em periódicos
LEMAF - Artigos publicados em periódicos



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