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EC: ISOGONIC_LINE
Status:
STD 2005/06/07
Code:
594
Concept definition:
An <
ISOPLETH
> that connects <
LOCATION
>s of equal magnetic variation; isogonic line.
Reference type:
PR
Reference:
[
FACC
, Annex A: ZC050]
Supplemental references:
Group membership:
EM_PHENOMENON
LOCATION
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