Fig. 3
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(Panel a) Resolute PCN in the DMI version vs. EM for the solar cycle epoch 1997–2009 in the format and notation of Figure 1. (b) Bin average Resolute PCN vs. Qaanaaq PCN. The dashed red line indicates equality. (c) Resolute PCN vs. EM for winter nights and (d) Resolute PCN vs. EM for summer daytime cases in the format and notation of Fig. 2a–h.
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