Abstract: Previous studies suggest that the enhanced meridional extent of some South American low-level jet events (known as Chaco jets) is a consequence of a positive feedback between the low-level wind and strong convection that ...

Abstract: In this work, the quality of several probabilistic quantitative precipitation forecasts (PQPFs) is examined. The analysis is focused over South America during a 2-month period in the warm season. Several ways of generating ...

Abstract: The Weather and Research Forecast model is tested over South America in different configurations to identify the one that gives the best estimates of observed surface variables. Systematic, nonsystematic, and total errors ...

Abstract: A climatology of the South American low-level jet east of the Andes (SALLJ) is developed using the 1950? 2000 circulation and moisture fields from the NCEP?NCAR reanalyses and available upper-air observations made in Bolivia ...

Abstract: The impact of changes in soil moisture in subtropical Argentina in rainfall distribution and low-level circulation is studied with a state-of-the-art regional model in a downscaling mode, with different scenarios of soil ...