Oct 27 – 31, 2025
Europe/Stockholm timezone

Decadal-Scale Forecasting of Solar and Geomagnetic Activity

Oct 28, 2025, 11:00 AM
15m
Miklagård

Miklagård

Oral SWR5 - Space Climate SWR5 – Space Climate

Speaker

Robert Leamon (Lynker Space)

Description

The Sun’s variability is controlled by the progression and interaction of the magnetized systems that form the 22-year magnetic activity cycle (the “Hale Cycle”) as they march from their origin at ∼55° latitude to the equator, over ∼19 years. Indeed, the Extended Solar Cycle is the Cycle.

Over the past few years, we have developed a new paradigm built around the overlapping extended cycles into a robust tool for predicting solar activity and its terrestrial consequences: we demonstrate the predictability of solar flares, EUV irradiance, solar wind properties and composition, and geomagnetic activity. Odd and even cycles also behave differently.

We discuss how skillful our forecasts (set in late 2021) have been for Cycle 25, and what may be expected, activity-wise, for the remainder of the cycle.

Do you plan to attend in-person or online? In-person

Primary author

Robert Leamon (Lynker Space)

Co-author

Dr Scott McIntosh (Lynker Space)

Presentation materials

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