Tootfinder

Extreme dominance of Earth-origin heavy ions in the intense #RingCurrent near the Earth during the May 2024 super #GeomagneticStorm: #ionosphere supplied vast majority of ring current ions during May 2024 super geomagnetic storm, study finds: https://en.nagoya-u.ac.jp/news/articles/earths-ionosphere-supplied-vast-majority-of-ring-current-ions-during-may-2024-super-geomagnetic-storm-study-finds/ - despite the dense solar wind, solar wind ion contributions to the ring current during the May 2024 superstorm were minimal; the first simultaneous observation of ring current ions and solar wind during a storm this large.

Periodic oscillations in the high-latitude #ionosphere driven by ultralow frequency waves - simultaneous measurements using a SuperDARN radar and GNSS-TEC technique: https://www.frontiersin.org/journals/astronomy-and-space-sciences/articles/10.3389/fspas.2026.1913757/full -> "To elucidate the relationship between electric field and electron-density variations in the high-latitude ionosphere associated with Pc5 ultralow-frequency (ULF) waves from subauroral to high latitudes, we analyzed the global navigation satellite system (GNSS)-total electron content (TEC), ionospheric plasma flow observed by the Super Dual Auroral Radar Network (SuperDARN), and electron density in the inner magnetosphere measured by the Arase satellite."

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