Principal component analysis applied to a time series of MODIS images: the spatio-temporal variability of the Pantanal wetland, Brazil - Almeida, Teodoro Isnard Ribeiro de; Penatti, Natasha Costa; Ferreira, Laerte Guimarães; Arantes, Arielle Elias; Amaral, Cibele Hummel do (Wetlands Ecology and Management, 2015)