Relationships between total amounts of ozone and upper air data in Japan

The correlation coefficients of total ozone with altitudes and with air temperatures referring to the standard isobaric surfaces of upper air data have been investigated at five stations in Japan during the period January 1979 through April 1983. It has been statistically confirmed that total ozone amounts increase with decrease in altitude at all levels, with increase in temperature at about 250 mb level or higher, and with decrease in temperature at about 300 mb or lower at Sapporo, Tateno, and Nemuro in winter (chiefly January, February, and March) in the above five-year period, and also at Kagoshima and Naha in the one-year period of September 1980 to August of 1981. It is shown that the high total ozone amount is frequently observed around a trough, particularly west of the trough. Further, it is inferred from the data at Sapporo for January in the period of 1971 to 1983 that the large positive differences of monthly mean total ozone amounts from the 10-year means are related to the intensified Aleutian anticyclone in the stratosphere.