Encyclopedia

sporadic E layer

sporadic E layer

[spə′rad·ik ′ē ‚lā·ər]
(geophysics)
A layer of intense ionization that occurs sporadically within the E layer; it is variable in time of occurrence, height, geographical distribution, penetration frequency, and ionization density.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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