Alternate Definitions for An index

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Term: An index
Definition:

The daily Ak index determined from only the Northern Hemisphere stations of the am index network.
NOAA SWPC SpWx Glossary Planetary Astrophysics Heliophysics
Created 2023.04.16
Last Modified 2023.04.16
Contributed by Ryan McGranaghan
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https://n2t.net/ark:/99152/h9751