Estudo do comportamento mensal da vegetação no estado da paraíba usando dados dos sensores AVHRR / NOAA.

Abstract

The study aims at providing a monthly monitoring of spatial vegetation in the state of Paraíba in from June 2008 to July 2008 by the aid of images from the AVHRR sensor systems of NOAA series weather satellite system in operation today. The processing of satellite images was done by the ENVI software. Given the spatial variability of NDVI presented in the state, it is stated that the second half of 2008 showed variability as scheduled. In the first half of 2009 the NDVI, yet the rainfall has been slightly above average, the values of NDVI depicted similar behavior to the same period the year before, which had the volume much above average rainfall climatology. The results presented demonstrate that vegetation is directly associated with certain level of rainfall, or heavy rains do not cause higher values of NDVI.