The objective this paper is verify the tendencies of indexes of detection of climate changes, dependent of the daily precipitation, in the states of RN and PB and to analyze your relationships with NDVI and anomalies of SST in the areas of Niño 1+2, Niño 3, North Tropical Atlantic Ocean (TNA) and South Tropical Atlantic Ocean (TSA). It was used data of precipitation of 44 locations, in the period from 1935 to 2000, representing all the regions of two States; of IVDN, obtained of NOAA/AVHRR, in the period from 1980 to 2000 and of anomalies of SST, given in by NOAA, from 1950 to 2000. A tendency of increase of the humidity conditions was observed on the two states. The index dry consecutive days it presented correlation significant statistically with the anomalies of SST of the areas TNA and TSA. While, the indexes very humid days and maximum amount of rain in five days they showed significant correlations with the areas of Niño 1+2 and 3 and with TNA. In general, it was observed that NDVI of the Savanna is more dependent of the precipitation ends than the one of the Atlantic forest. In agreement with the obtained results it was ended that the climatic changes detected by the indexes they are resulting as much of the factors of great scale as of local scale. Another obtained result was influence of ENSO on the extreme indexes of rain and consequently on climate and the dynamics of the vegetation of the Semi-arid.
RClimdex 1.9.1; climate change; precipitation
