On the Interyear Variation of the Annual and the Semiannual Oscillations of the Atmosphere

Abstract

The inter-year variations of the annual and the semi-annual pressure oscillations are discussed, special emphasis being placed upon the relationship between the amplitude and the phase. The interlongitude variations along the latitudinal circles are also touched.In both variations, the phase and the amplitude seem to be under a certain relationship.The effects, on the monthly-mean pressure values, of intense storms seem to be serious in many cases. In order to avoid such effects, it is desired that the monthlymean pressure value be computed from “quiet day” pressures alone.