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Left panel: The significance level for the time-lagged cross-correlation after 10,000 MC-iterations for the period 1968–2020 in the NH. FDR interval is set between lead and lag −13 to +13. Right panel: Same procedure, only for the SH. No significance is obtained in either hemisphere. The smallest p-value obtained from the MC simulation is highlighted at the point of occurrence. This routine will be done for every figure for comparison.
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