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Comparison of 3-yr smoothed GSN (a) and GSN* (b) sunspot number series with 3-yr smoothed solar wind B from Owens et al. (2016; with observed data after 1964), 1845–1995. Solar cycle numbers are indicated at the bottom of the plots. In (a) and (b), the B axis is offset by 3.8 nT to match this parameter with 11-yr maxima of the sunspot number during the 20th century.
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