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Fig. 2.


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Example 4-year time series for 2012 training period. Not only does the 6–10 nm band better capture day-to-day variations, it also more closely follows the overall solar activity level. Note that for the 75–80 nm band, the farther away from the fitting interval the model results are, the less likely they are to overlay the observed data. Reference data uncertainties are a few percent, on the order of the size of the line used to plot. (a) Strongest correlation for 2012 fitting interval, (b) weakest correlation for 2012 fitting lnterval.

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