Abstract
Data on the cosmogenic isotope (14C) concentration in the Earth’s atmosphere are widely used to reconstruct solar activity in past epochs. However, the concentration of this isotope in the atmosphere (Δ14C) and tree rings can also be affected by climatic factors. The possible effect of the variations in the Earth’s surface temperature on atmospheric 14C in the time interval from 1511 to 1954 is considered in the work. It was shown that the agreement between the Δ14C calculated curves and the experimental curve can be improved if the effect of temperature variations on (a) the radiocarbon exchange rate between the atmosphere and ocean and (b) atmospheric CO2 is taken into account. Further research trends are discussed.
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