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Concluding remarks

In the present study, it was shown that the resultant interannual variability of the general circulation in the stratosphere was larger than that in the control experiment, which is due mainly to the positive feedback mechanism of the Arctic ozone depletion. Moreover, influences of the stratospheric ozone losses extend to the general circulation in the troposphere. Concomitantly, the stratosphere-troposphere coupled interannual variation, which is extracted by the multiple EOF analysis for the springtime zonal mean zonal wind, shows a more systematic character than that in the control experiment.