auroral frequency

auroral frequency

[ə′rȯr·əl ′frē·kwən·sē]
(geophysics)
The percentage of nights on which an aurora is seen at a particular place, or on which one would be seen if clouds did not interfere.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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