Monitoring the temporal dynamics of four vegetation cover types from the Pantanal using the wavelet transform applied to a time-series of EVI/MODIS data.

ANTUNES, J. F. G.; ESQUERDO, J. C. D. M.; LAMPARELLI, R. A. C.

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Campo DC	Valor	Idioma
dc.contributor.author	ANTUNES, J. F. G.	pt_BR
dc.contributor.author	ESQUERDO, J. C. D. M.	pt_BR
dc.contributor.author	LAMPARELLI, R. A. C.	pt_BR
dc.date.accessioned	2011-08-05T11:11:11Z	pt_BR
dc.date.accessioned	2011-08-05T11:11:11Z	pt_BR
dc.date.available	2011-08-05T11:11:11Z	pt_BR
dc.date.available	2011-08-05T11:11:11Z	pt_BR
dc.date.created	2011-08-05	pt_BR
dc.date.issued	2011	pt_BR
dc.identifier.citation	Geografia, Rio Claro, v. 36, p. 173-185, jun. 2011.	pt_BR
dc.identifier.uri	http://www.alice.cnptia.embrapa.br/alice/handle/doc/897363	pt_BR
dc.description	Although one of the most preserved ecosystems in Brazil, the Pantanal suffers under problems such as fire, deforestation and changes in the flood and drought cycles. Monitoring all the extension of the Pantanal is essential to detect problems related to land use changes and to infer on the level of floods in the wetlands. The objective of this study was to monitor four areas in the Pantanal with different vegetation cover using the Wavelet Transform applied to a time-series of EVI (Enhanced Vegetation Index) acquired from the MODIS (Moderate Resolution Imaging Spectroradiometer) sensor, between 2005 and 2009, in order to analyze the vegetation phenology dynamics. The results showed that the Coiflet Wavelet Transform of 4th order with 90% power, was able to remove the high frequency noise and highlight the changes of the vegetation phenology with a higher precision, allowing a better analysis of trends in the inter-annual variability of EVI. Changes of the temporal EVI pattern may indicate changes in vegetation phenology, mainly due to rainfall seasonality. The technique is robust and can be extrapolated to other regions of the Pantanal in order to detect deforestation and fire occurrences.	pt_BR
dc.language.iso	eng	eng
dc.rights	openAccess	eng
dc.subject	Séries temporais de dados EVI/MODIS	pt_BR
dc.subject	Processamento de imagens	pt_BR
dc.subject	Índice de vegetação	pt_BR
dc.subject	Perfil temporal	pt_BR
dc.subject	Detecção da fenologia	pt_BR
dc.subject	Image processing	pt_BR
dc.title	Monitoring the temporal dynamics of four vegetation cover types from the Pantanal using the wavelet transform applied to a time-series of EVI/MODIS data.	pt_BR
dc.type	Artigo de periódico	pt_BR
dc.date.updated	2013-04-02T11:11:11Z	pt_BR
dc.subject.thesagro	Sensoriamento Remoto	pt_BR
dc.subject.nalthesaurus	Remote sensing	pt_BR
dc.subject.nalthesaurus	Phenology	pt_BR
dc.subject.nalthesaurus	Time series analysis	pt_BR
dc.description.notes	Número especial.	pt_BR
riaa.ainfo.id	897363	pt_BR
riaa.ainfo.lastupdate	2013-04-02	pt_BR
dc.contributor.institution	JOÃO FRANCISCO GONÇALVES ANTUNES, CNPTIA; JÚLIO CÉSAR DALLA MORA ESQUERDO, CNPTIA; RUBENS AUGUSTO CAMARGO LAMPARELLI, Cepagri/Unicamp.	pt_BR
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