Space Weather Disturbance Scales

In an effort to tie the geophysical measurements of the solar-terrestrial environment to the possible disturbance levels that could impact the livelihood of people on Earth, the NOAA Space Environment Center has recently devised three tables of five severity categories. These tables separate geomagnetic field effects, energetic particle damage, and ionospheric radiowave disturbances into three independent groups dividing the minor to extreme activity into five categories. These scales (Tables 5.1,5.2, and 5.3) are used in providing the public forecasting and warning notices of global interest.

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