THE ANNUAL VARIATION OF TOTAL OZONE IN THE SOUTHERN HEMISPHERE1

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Abstract
A summary of Southern Hemisphere total ozone measurements made during the quiet sun period of 1960–1965 showed no pronounced changes from the annual variation pattern observed during the preceding active-sun years. Nor was any difference found during 1960–1965 between the annual variation of total ozone in the South Pacific area and the annual trend at other longitudes in the Southern Hemisphere. The present analysis does reemphasize that dissimilarities in the development pattern of the springtime ozone maxima in the Southern and Northern Hemispheres require that the ozone general circulation models be different in the two hemispheres.