First reported detection of a winter continental gamma-ray glow in Europe
<p>This study presents the first-ever published detection of two parallel winter continental gamma-ray glows in Central Europe, observed during a rare winter thunderstorm on Milešovka hill, Czech Republic. The combination of the hill's altitude of 837 m above sea level (a.s.l.) and the lo...
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| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2025-08-01
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| Series: | Atmospheric Chemistry and Physics |
| Online Access: | https://acp.copernicus.org/articles/25/8443/2025/acp-25-8443-2025.pdf |
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| Summary: | <p>This study presents the first-ever published detection of two parallel winter continental gamma-ray glows in Central Europe, observed during a rare winter thunderstorm on Milešovka hill, Czech Republic. The combination of the hill's altitude of 837 m above sea level (a.s.l.) and the low altitude of the winter thunderstorm cloud resulted in an observation very near the acceleration region inside the thundercloud. The event was captured using a combination of advanced instruments, including a Ka-band cloud profiler (which enabled a detailed analysis of the storm's microphysics), a SEVAN large-area scintillation detector for monitoring ionizing radiation, and a staffed professional meteorological observatory. The radar data indicated the alignment of ice crystals within the cloud, strongly suggesting the presence of a substantial electric field. The findings offer valuable insights into winter thunderstorm dynamics in continental climates, with broader implications for studying high-energy atmospheric physics.</p> |
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| ISSN: | 1680-7316 1680-7324 |