Alternate Definitions for Km index

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Term: Km index

A 3-hourly planetary index of geomagnetic activity calculated by the Institut de Physique du Globe de Paris, France, from the K indexes observed at a large, symmetrically located network of stations. The Km indexes are used to determine the am indexes.

Created 2023.04.16
Last Modified 2023.04.16
Contributed by Ryan McGranaghan