Frontiers | Case study on low-frequency time-code signal during the 10–15 November 2025 geomagnetic storm: observations and analysis
www.frontiersin.org
IntroductionGeomagnetic storms are typical solar eruption activities. When high-speed solar wind or coronal mass ejections from solar eruptions strike the Ea...
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The original was posted on /r/space by /u/benweb9 on 2026-05-18 20:55:47+00:00.

Original Title: A Chinese study monitoring low-frequency time-code signals during the November 2025 geomagnetic storm found that signal strength dropped by over 2.3 dBμV/m and timing accuracy degraded by more than 2.4 milliseconds as solar activity disrupted the ionosphere.