Observation and modeling of high-7Be concentration events at the surface in northern Europe associated with the instability of the Arctic polar vortex in early 2003

• Published in: Atmospheric Chemistry and Physics
• Main Authors: Brattich, Erika, Liu, Hongyu, Zhang, Bo, Hernández-Ceballos, Miguel Ángel, Paatero, Jussi, Sarvan, Darko, Djurdjevic, Vladimir, Tositti, Laura, Ajtić, Jelena
• Format: Article in Journal/Newspaper
• Language: English
• Published: 2021
• Subjects: Sudden Stratospheric Warming; polar vortex; stratospheric air masse; atmospheric radionuclide; chemistry and transport model; Arctic; Merra; Fennoscandia
• Online Access: http://hdl.handle.net/11585/840873; https://doi.org/10.5194/acp-21-17927-2021; https://acp.copernicus.org/articles/21/17927/2021/

Events of very high concentrations of 7Be cosmogenic radionuclide have been recorded at low-elevation surface stations in the subpolar regions of Europe during the cold season. With an aim to investigate the mechanisms responsible for those peak 7Be events, and in particular to verify if they are as...