Modern Maximum

The Modern Maximum was found by Sami Solanki, Ilya G. Usoskin and colleagues[1] as the period of unusually high solar activity[2] which began with solar cycle 15 in 1914.

[3][failed verification][needs update] Another proposed end date for the maximum is 2007, with the decline phase of Cycle 23.

This maximum period is a natural example of solar variation, and one of many that are known from proxy records of past solar variability.

The Modern Maximum reached a double peak once in the 1950s and again during the 1990s.

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