Regional climate modeling South America 22 regional climate 18 climate modeling 16 precipitation (climatology) 10 Brazil 8 Soil moisture 6 ensemble forecasting 6 seasonal variation 6 twenty first century 6 Argentina 4 Atlantic Ocean 4 Atlantic Ocean (South) 4 Chile 4 Climate change scenarios 4 Climate models 4 Climatology 4 Computer simulation 4 Coupling strengths 4 Geographical regions 4 La Plata Basin 4 MM5 model 4 Model validation 4 Precipitation 4 Pressure effects 4 Sea level 4 South America climate 4 Statistical methods 4 Temperature distribution 4 Uruguay 4