Science, Space and Technology News 2024
The Carrington Event of 1859, a massive solar storm, was recently studied through radiocarbon concentrations in tree rings, revealing new insights into solar activity and its effects on Earth. Credit: SciTechDaily.com
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. Previously, radiocarbon traces have only been detected from far more intense solar storms.flows, and Earth’s geomagnetic field result in geomagnetic storms.
“Radiocarbon is like a cosmic marker describing phenomena associated with Earth, the solar system, and outer space,” says Markku Oinonen, Director of the University of Helsinki’s Laboratory of Chronology, who headed the study.A solar storm corresponding to the Carrington event in modern times would disrupt electrical and mobile networks and cause major problems for satellite and navigation systems, leading to problems in, for example, air traffic.
“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. “It’s possible that the excess of radiocarbon caused by the solar flare was primarily transported to the lower atmosphere through northern regions, contrary to the general understanding of its movement,” muses Doctoral Researcher Joonas Uusitalo from the Laboratory of Chronology.
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