IInfluência do Fenômeno menos nos Perfis temporais de NDVI das Áreas rivícolas do Rio Grande do Sul
DOI:
https://doi.org/10.5902/2179460X11561Abstract
O objetivo deste trabalho foi investigar as relações entre os perfis temporais de NDVI das áreas cultivadas com arroz irrigado no Rio Grande do Sul e a variabilidade climática associada à ocorrência de eventos ENOS (El Niño Oscilação Sul). Foram utilizadas imagens de NDVI/MODIS e estatísticas oficiais de área cultivada e rendimento de grãos de arroz irrigado. Para tanto foram consideradas duas safras de ocorrência de La Niña, quatro de ocorrência de El Niño e quatro consideradas neutras. Os resultados mostraram que existem diferenças entre os perfis temporais representativos de safras de ocorrência de El Niño e La Niña, provavelmente associadas às condições meteorológicas características de ENOS. Assim, estes perfis podem ser utilizados como indicativo da variabilidade climática interanual.Downloads
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