Mapping the ionosphere with millions of phones - Nature
Briefly

The dynamic nature of the ionosphere, with varying electron density influenced by a multitude of factors, necessitates real-time TEC mapping to enhance navigation accuracy.
Smartphones, despite having lower quality sensors than traditional scientific instruments, provide a unique advantage in coverage and spatial resolution for ionospheric studies.
Current operational TEC products lack comprehensive coverage and rapid refresh rates, impeding their effectiveness for diverse applications like aviation, communications, and precision agriculture.
Ionospheric TEC, crucial for satellite navigation, introduces significant errors in geolocation calculations due to its impact on the propagation speed of radio waves.
Read at Nature
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