ANÁLISE PLUVIOMÉTRICA DA BACIA TRANSFRONTEIRIÇA DO RIO MADEIRA

-The analysis of the patterns of precipitation in a hydrographic basin is fundamental for the sound management of water resources, based on hydrological studies. The Madeira river basin is considered one of the most important sub-basins of the enormous Amazon basin, yet there are few scientific studies on the area’s rainfall. In this context, this work has the central aim of analyzing the patterns of monthly precipitation in the Madeira River Basin (Bolivia Brazil). This analysis was performed with historical data collected from 41 pluviometric stations in the basin between 1978 and 1998 by means of two data pooling methods: Ward and the k-means. The basin was divided into four homogeneous pluviometric regions, where both methods showed similar results in terms monthly variability of the rains, represented by seasonal graphs, as well as the spatial variability of rains represented by the pluviosity maps. Palavras-Chave: Regionalização pluviométrica, bacia transfronteiriça, rio Madeira. 1 Doutoranda do Programa de Engenharia Civil da COPPE/UFRJ, Sala I-206 do CT, Cidade Universitária Ilha do Fundão. E-mail dazaclau@gmail.com 2 Professor Associado, COPPE/Universidade Federal do Rio de Janeiro, Sala I-206 do CT-UFRJ, Cidade Universitária – Ilha do Fundão, Rio de Janeiro, código postal: 21945-970Rio de Janeiro RJ, Brasil,; (21) 2562-7832; FAX (21) 2562-8464; email: zepaulo@coc.ufrj.br 3 Professor Adjunto do PPE-COPPE-UFRJ, CT, bloco C, sala 211 CEP: 21949-972 Cidade Universitária Ilha do Fundão. E-mail mfreitas@ppe.ufrj.br