SPACIALIZATION OF RAINS IN A HYDROGRAPHIC BASIN IN THE SEMIARID OF PARAÍBA

Abstract

The northeastern semiarid region of Brazil has high temperatures associated with low rainfall, which occur intensely and are poorly distributed throughout the geographical space. From this perspective, there is a need to understand the dynamics of rainfall in the dry perimeter in order to substantiate the various forms of water resources management. However, the availability of rainfall data in this region is sometimes scarce, which implies interpolation as a way of understanding the distribution or spatialization of rainfall in various spatial cutouts. Quantitative analysis of rainfall data allows us to understand the dynamics and relationship with the main precipitation systems of a given study area. Thus, the objective of this work is to quantify and spacialize the rainfall data correlating them with the rain producing systems between the wettest and driest year of the Piranhas River Upper Course drainage basin, Semiarid - PB between January 1996 and December 2016. Given the above, it was  identified that the year 2008 was the wettest and 2012 the driest in the series, and that ITCZ’s performance varies year-on-year according to SSM temperature.