K index

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Term: K index

A 3-hourly quasi-logarithmic local index of geomagnetic activity relative to an assumed quiet-day curve for the recording site. Range is from 0 (quiet) to 9 (severely disturbed). The K index measures the deviation of the most disturbed component (see geomagnetic elements). Also see Kp.

Created 2023.04.16
Last Modified 2023.04.16
Contributed by Ryan McGranaghan