Abstract
The relations between the amount of atmospheric ozone observed at Tokyo for the period from 1953 to 1955 and the upper meteorological conditions were studied.
Day-to-day variations of the ozone amount are generally explained with the conception of upper pressure pattern, that is a high ozone amount near a trough and a low amount near a ridge. But, in addition to this the vertical motions of the upper atmospheric air accompanied by a jet stream may be considered as a secondary effect. Moreover, in the southern-most region of the trough at 300mb level, ozone variations were essentially small. The result shows that in this region the intensity of the vertical motions of the air contributing to ozone variation is less than in the other regions of the trough.
