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On periodicities in long term climatic variations near 68° N, 30° E

Kasatkina, E. A.; Shumilov, O. I.; Krapiec, M.

It is generally believed that the low-frequency variability of climatic parameters seems to be connected to solar cycles. The principal periodicities are: 11-year (Schwabe), 22-year (Hale), 33-year (Bruckner) and 80-100-year (Gleissberg) cycles. The main heliophysical factors acting on climate, the biosphere and the atmosphere are solar irradiance…