Abstract: A general circulation model (GCM) with idealized boundary conditions is used to study the effects of a mountain's latitudinal position on the stationary wave response. In each of a series of experiments the only asymmetry ...

Abstract: The climatological structure in the upper-tropospheric summertime circulation over South America is diagnosed using a GCM (with and without South American topography), a linear model, and observational data. Emphasis is ...

Abstract: The regional precipitation climatology of South America during austral summer is studied by means of an R30 general circulation model (GCM). Results from perpetual January experiments, which differ only in their distributions ...

Abstract: The observed large-scale circulation mechanisms associated with summertime precipitation variability over South America are investigated. Particular attention is paid to the Altiplano where a close relationship has been ...

Abstract: The African Humid Period (AHP), about 14 800 yr ago [14.8?5.5 ka (ka ≡ 1000 yr ago)], was a time of increased humidity over Africa. Paleoclimate evidence suggests that the West African summer monsoon was stronger and more ...

Abstract: The influence of heating over Africa on the South American precipitation climatology, and the influence of South America on Africa, is examined through the application of GCM simulations with idealized boundary conditions ...

Abstract: No abstract available