Operational impact · Communications

Radio Communications

The X-rays from a solar flare suddenly increase the ionisation of the day-side ionosphere, absorbing high-frequency radio waves and causing radio blackouts across the sunlit Earth — the effect measured by NOAA's R-scale.

NOAA R-Scale (Radio Blackouts)
Solar Flare
The Ionosphere

Across space weather

The Ionosphere

Knowledge connections

Associated withThe Ionosphere
Associated withNOAA R-Scale (Radio Blackouts)
Associated withSolar Flare
Associated withThe Ionosphere

Sources

Facts on this topic will be cited from these primary and reference sources.

NOAA SWPCNOAA Space Weather Prediction Center
Space-weather forecasts and alerts: aurora (OVATION), the Kp index, and the G1–G5 geomagnetic storm scale.

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Radio Communications

Drivers, environments & assets

Across space weather

Knowledge connections

Sources

Radio Communications

Drivers, environments & assets

Across space weather

Knowledge connections

Sources