EA: VISUAL_RANGE_DAY
Status:
SUBM 2009/06/04
Concept definition:
The distance, under daylight conditions, at which the apparent contrast between a specified type of target and its background becomes just equal to the threshold contrast of an observer; visual range day.
Attribute value type:
REAL
Unit equivalence class label:
LENGTH
Reference type:
IR
Reference:
[
GMET
, "visual range"]
Supplemental references:
Group membership:
ATMOSPHERE
DIMENSION
LIGHTING_AND_VISIBILITY
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