Abstract: The influence of the Andes Cordillera on transient disturbances is investigated in this study using a lag-correlation analysis. This analysis shows that the unfiltered geopotential height data have a wavelike pattern moving ...

Abstract: The frequency of surface cyclogenesis over South America (approximately the area enclosed by 15°?50°S and 30°?90°W) has been calculated using, 10 years (1979?1988) of data. The frequency of cyclogenesis is more in winter ...

Abstract: No abstract