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Fig. 13


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(a) Relations between the merging electric field, EM, and the polar cap, PCC, index. The small blue dots display the individual 15-min samples. The larger black squares with error bars show the bin-average values and sample numbers. The dashed red line indicates equality while the red dots display a functional relation between EM and PCC. The dashed black line indicates a PCC modification (b) Same data set but with the modified PCC values (PCCeff) displayed against EM.

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