On the sea level pressure of the southern oscillation

Abstract

In this paper an analysis of the sea level pressure on the time scale of the Southern Oscillation is carried out over the entire globe utilizing 16 years (1961–1976) of monthly mean sea level pressure. A special data collection based on numerous archives was used in this analysis effort. In addition, a Northern Hemisphere data set from the archives of the National Center for Atmospheric Research for 80 years of data (1900 to 1980) is also used in the present study. The major contribution here is an analysis of the antecedents of the major pressure reversals over the Indian Ocean and the eastern Pacific Ocean.