Abstract
The knowledge of the radioactive 14C yield under atmosphere thunderstorm
flash conditions (the additional discovered channel of 14C production
relative to the main - cosmogenic one) is important for radiocarbon
analysis. It is proposed the gross model for evaluation of the
thunderstorm 14C yield simulated for the altitudes up to 15 km. It was
obtained that yield from the thunderstorm mechanisms of 14C creation
cannot compete with cosmogenic production which is six orders of value
larger. The obtained result allows to take off the problematic issue on
thunderstorm radiocarbon generation in the atmosphere as the additional
significant source.