Gláucia Dos Santos Nascimento,Alline Gomes Lamenha e Silva,Christopher Freire Souza, Universidade Federal de Alagoas, Centro de Tecnologia, gal.sn@hotmail.com
Mankind deals with floods since the colonization process. Due to the urbanization process, flood damages are increasingly greater. In this study, we aimed to identify where natural floods are greater. We applied 44 years natural flow series from seven rivers that drains different biomes and contributing areas, ranging from 14000 to 800000 km². Such comparison was based on 2-year specific flows, estimated via GEV and EV distribution fitting. From GEV fitting results, we might suggest that rivers that drain the Caatinga are prone to smaller floods. The São Francisco River presents specific flows in Xingó smaller than in Três Marias, which is located upstream. We might also suggest that smaller basins present greater floods. We intend to continue such studies, taking data from rivers from the same biomes with different área magnitudes.
Key-words: biomes, contributing areas, GEV.