Rainwater Catchment and Droughts

El Niño's Impact on Rainwater Catchment in Brazil's Semiarid Northeast

Vicente de Paulo Rodrigues da Silva, Hiran de Melo, Antônio Heriberto de Castro Teixeira, José Homero Feitosa Cavalcanti
DCA/CCT/UFPB
E-mail: vicente@dca.ufpb.br

 

Abstract

This study uses the annual precipitation data provided by 88 weather stations in Brazil’s Northeast. The yearly rainfall variations of each station were compared to the average climatic data of a 82-year period. For the period 1911 to 1992 the relationship between variations of yearly rainfall and the El Niño phenomenon was analyzed.