Análise da precipitação pluvial de Pombal-PB relacionada com sistemas atmosféricos atuantes.

A main characteristic of the northeastern semi-arid region is the low availability rain. Given the above, the objective of this study is to analyze the variation of rainfall of Pombal / PB in the years from 1994 to 2010 checking weather systems that are responsible for the precipitation and then compare the rains of this period with the last four years. We used data monthly rainfall of Pombal / PB, corresponding to the period from 1994 to 2010 for an analysis of rainfall between them and after that were compared to the rains that period with 2011 to 2014. Both figures were obtained from the records precipitation of the Agência Executiva de Gestão das Águas do Estado da Paraíba (AESA). Note that the more distant the rainy season, are drier months. This is due to ZCIT move further north from June due to the earth's rotation movements causing drought in the semiarid region. It appears that the rainfall of Pombal / PB is characterized by irregularities and episodes of rains are associated with ZCIT. [ABSTRACT FROM AUTHOR]