w:SOI index, 1876-2005. By William M. Connolley. Light blue: monthly averages Blue: 13 month running mean Purple: 37 month running mean Data from ftp://ftp...
axis) as per Image:Enso jma.png and negated w:SOI (thin line; 13 month smoothing; right axis) as per Image:Soi-1876-2005.png; showing how they frequently...
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