Studies on the Seasonal Weather Forecasting (IV)

Prognosis and weather types of 5-day mean 700 mb chart

Abstract

Prognostic charts of 5-day m ean 700 mb height were made experimentally since the last summer by the periodical extrapolation method and it was found that the accuracy of the forecasted values better than that of surface pressure. Next, the relations between daily weather progress and 5-day mean 700mb chart were researched and it was found that the prognostic 5-day mean anomaly chart of 700 mb level was useful for the forcast of 5-day mean temperature and weather change.