Fig. 4: The probability of occurrence of various levels of additional 14C production (Q) related to a potential spike, based on the seven datasets from 1 to 970 CE. | Communications Earth & Environment

Fig. 4: The probability of occurrence of various levels of additional 14C production (Q) related to a potential spike, based on the seven datasets from 1 to 970 CE.

From: Patterns in solar activity over the first millennium CE

Fig. 4: The probability of occurrence of various levels of additional 14C production (Q) related to a potential spike, based on the seven datasets from 1 to 970 CE.The alternative text for this image may have been generated using AI.

From top to bottom, each panel corresponds to a Q threshold ranging from 1 to 3.5 atom cm−2 s−1 yr−1. Years with a probability greater than 40% are indicated.

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