Evaluation of Extreme Hydroclimatic Trends in River Basins Located in the Northeast and South Regions of Brazil

Brazil has a large availability of natural resources, and its economy was historically built around their exploitation. Changes in climate trends are already causing several environmental impacts, which affect the economic social organization country. Impacts linked to hydrological cycle particularly concerning since water resources used for electricity production, representing approximately 65% Brazilian matrix. This study, therefore, aims evaluate extreme hydroclimatic river basins located Northeast South regions For this purpose, we carried out flow analysis from 2020 2100, considering precipitation data BCC CSM1-1, CCSM4, MIROC5, NorESM1-M models presented Fifth Assessment Report Intergovernmental Panel on Climate Change (IPCC). We SMAP rainfall-runoff model obtain future projections RCP4.5 RCP8.5 scenarios. As result, observed trend toward loss intensification events, with an increase variability both also noted that these have difficulty reproducing southern basins, as parameterization small-scale atmospheric processes prevents them correctly projecting precipitation.