Temporal analysis of rainfall and vegetation index using satellite images in Pernambuco State

Milena Dantas

Abstract


The development of this work aimed, analyze and interpret the temporal standards   of precipitation and NDVI in the Pernambuco state (Brazil). We used monthly average data of rainfall and NDVI obtained by Terra/MODIS satellite image, with spatial resolution of 1km, for the period from 2003 to 2013. We applied the Principal Components Factorial Analysis method to determine the variability seasonal standard variables. The results showed that the technique applied to the temporal analysis of precipitation explained 84.61% (CPs) of the data variance, and to NDVI the temporal analysis explained 90.21% (3 CPs). Altogether, we observed that the vegetation index is proportional to the amount of rain of the region and that the vegetation takes a while after the rainfall to develop


Keywords


NDVI, MODIS, rainfall

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DOI: https://doi.org/10.29150/jhrs.v6i2.22740

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