Abstract: The functioning of the Southern Oscillation (SO) over South America and the surrounding tropical Atlantic and eastern Pacific Oceans is studied through analyses of bimonthly patterns of correlation between an SO index and ...

Abstract: The functioning of the Southern Oscillation (SO) in the South American sector is analyzed with particular emphasis on the upper-air circulation anomalies. Throughout the year, but especially during austral summer, the ...

Abstract: The seasonality of the ENSO?rainfall relationship in central Chile (30°?41°S) and associated circulation anomalies are studied using correlation and compositing techniques. During El Niño episodes there is a tendency for ...

Abstract: Regional and large-scale circulation anomalies associated with periods of enhanced and reduced convective cloudiness over Uruguay are studied for austral spring and summer, when rainfall associated with deep convection is ...

Abstract: Summertime (December?February) precipitation is virtually the only water resource over the South American Altiplano, a semiarid, high-level plateau entrenched in the central Andes. On the interannual timescale, Altiplano ...

Abstract: The seasonality of the simultaneous relationship between tropical Pacific SST and rainfall, as well as rainfall predictability one season in advance in subtropical South America (25°?40°S), is studied using different ...