Difference between revisions of "Magnetic Solar Daily Variation"
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Magnetic Solar Daily Variation
(symbol S)
</dt>
A periodic variation of the earth's magnetic
field that is in phase with solar (local) time.
The primary source of this variation is the ionizing effect of solar
electromagnetic radiation on the atmosphere coupled with the earth's rotation.
The amplitude of this variation changes with the seasons and the sunspot
cycle. [[/a>|/a>
]]
References
This article is based on NASA's Dictionary of Technical Terms for Aerospace Use
