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Contact: ZHAO Xinhua
xhzhao@spaceweather.ac.cn
Science China Press

Wavelet

Caption: The global wavelet coherence between Sunspot number (a), Total Solar Irradiance (b) and the anomalies of the Earth's averaged surface temperature. The resonant periodicities of 21.3-year (21.5-year), 52.3-year (61.6-year), and 81.6-year are close to the 22-year, 50-year, and 100-year cycles of solar activity.

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