REGIONALIZAÇÃO SAZONAL E MENSAL DA PRECIPITAÇÃO PLUVIAL MÁXIMA NO ESTADO DO RIO GRANDE DO SUL

• Autor(a) principal: Pereira Britto, Fabiane da Revista da
• Data de Publicação: 2006
• Outros Autores: Barletta, Rodrigo, Mendonça, Magaly
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Revista Brasileira de Climatologia (Online)
• Texto Completo: https://revistas.ufpr.br/revistaabclima/article/view/25385
• topic: Rainfall; Variability and Atmospheric Systems.; Precipitação Pluvial; Variabilidade e Sistemas Atmosféricos.

This work aims to characterize the rainfall and to identify atmosphericsystems that act in the Rio Grande do Sul State. Monthly data from theperiod between 1967 and 1998 were used, sampled at the 14 meteorologicalstations. The time-spacial rainfall behavior were analised by the seasonal andmonthly variability. Total mean values were calculated for eachmeteorological stations. Further, data analisys and interpretation wererealized on the rainfall (seasonal and monthly). Seasonal, data for the costaland central state, show that winter months are more rainny, due to thefrequency of the frontal systems passage. At the southwest, auttumn is morerainny, due to atmospherical blocking. At the northwest, spring months aremore rainny, due to Mesoscale Convective Complex formation. At thenortheast, summer is more rainny, is a function of convective rain associatedto atmospheric system like the South Atlantic Convergence Zone.