EC: SURFACE_BASED_EM_DUCT
Status:
STD 2005/06/07
Code:
1197
Concept definition:
A layer of the <
ATMOSPHERE
> that is adjacent to the <
PLANETARY_SURFACE
> of the <
EARTH
> and in which electromagnetic waves are trapped due to changes in the index of refraction; surface-based electromagnetic duct.
Reference type:
IR
Reference:
[
BATT
]
Supplemental references:
Group membership:
ATMOSPHERE
EM_PHENOMENON
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