Interdiurnal surface pressure variations in Brazil: their spatial distributions, origins and effects.

Abstract

Pressure oscillations that occur in S Brazil, associated with midlatitude synoptic systems, are shown to be positively correlated with pressure oscillations near the equator. The correlation maxima show an eastward displacement with increasing lag. Interannual variability in the correlation coefficients is discussed and related to variability in the intensity and frequency of midlatitude systems, which affect the region.-from Authors