Variabilidade ou mudança climática? Uma análise histórica da precipitação no Cariri Paraibano.

Abstract

This article aims to present an analysis of the historical series of precipitation in the municipalities of Cabaceiras, Taperoá and Monteiro, in the state of Paraíba in the period from 1911 to 2022, in order to verify climate changes or variability of the rain element. For this, it is use of statistics of mean, median, standard deviation and linear trend with data obtained by the Agência Nacional de Águas (ANA), the extinct Superintendência do Desenvolvimento do Nordeste (SUDENE) and the Agência Executiva de Gestão das Águas no Estado da Paraíba (AESA). The analysis was performed on ten-year, annual, monthly and daily scales. The results show an increase in average precipitation, raising a reflection on the characteristics of variability to better understand the distribution of rainfall in the Paraíba Cariri and how the results can contribute to the management of water resources.