
Nowcasting the ionosphere: Evaluating GloTEC for real-time GNSS corrections
July 14, 2025
GloTEC is a real-time global Total Electron Content (TEC) map from NOAA’s Space Weather Prediction Center (SWPC). GloTEC assimilates both ground- and space-based observations to provide real-time global ionospheric corrections without relying on error-prone linear combinations.
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