Oulu

In a joint study carried out by the University of Helsinki, Natural Resources Institute Finland and the University of Oulu, a sign of an increase in radiocarbon concentrations following the Carrington storm was detected for the first time in tree rings.

The results were interpreted using a numerical model of radiocarbon production and transport developed by researchers at the University of Oulu.

"The dynamic atmospheric carbon transport model was specifically developed for describing geographical differences in the distribution of radiocarbon in the atmosphere," says Postdoctoral Researcher Kseniia Golubenko from the University of Oulu.

Researchers from the University of Oulu, Nagoya University, Yamagata University and ETH Zurich also contributed to the study.

The research was conducted alongside researchers at the University of Oulu in Finland and the University of Latvia.