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. 2016 Feb 17;3(2):150320. doi: 10.1098/rsos.150320

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© 2016 The Authors. Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited.

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Figure 6. — Superposed epoch (composite) samples for extreme phases of the various forcings shown in figure 5. For NAO and ENSO indices, the values are ranked, and the n=11 most extreme months from Jan 1801 to Dec 2000 (non-overlapping within a period of ±365 days) are selected as samples. The composite samples representing the extreme phases of the 11 year SC are identified from the months of solar maximum and solar minimum (n=11). Uncertainty ranges show ±1 s.e.m.