TENDENCY OF SOLAR ACTIVITY VARIATION OVER THE LAST CENTURIES ACCORDING TO COSMOGENIC ISOTOPE DATA

摘要

New proofs of long-term variations in solar activity are presented: it steadily increased from the mid-twentieth century and apparently reached a maximum at the turn of the second and third millennia. A similar situation in solar activity was reconstructed using cosmogenic isotopes at the end of first-the beginning of the second millennium and was a result of waves of the ~ 200- and ~ 2000-year cycles.