抄録
In this paper, the author analyzed the 10-day period of air pressure often found in Kanto District and its neighborhood from April to June, and from September to October, and the following results were obtained:
1. Periodic change most develops in the middle decade of July and the last decade of September. (Fig. 1)
2. Spatial distribution of periodic change is given. (Fig. 2)
3. Statistically, the center of periodic change situates in Kanto District.
4. The above change is considered to be a stationary oscillation and accompanies the temperature change as shown in Fig. 5.
