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The solar cycle was identified at both stations, as having a period near 10 years and an amplitude of 1% at Natal, and near 8 years and 1.5 % at C. Paulista. Total ozone at Natal has variation in phase, while at C. Paulista it leads sunspot number by two years.
The QBO signal: zonal wind is correlated in a positive way with total ozone at Natal, with a period of 2.4 years and amplitude of 1.2% and lag of +2 months, while at C. Paulista zonal wind and total ozone are anticorrelated, with QBO period in ozone of 2.4 years, 1.4% of amplitude and 14 months of lag, ozone reaching maximum 14 months earlier than the zonal wind.