EA: VISIBILITY_OBSTRUCTION_TIME_PERIOD_FRACTION
Status:
SUBM 2009/06/04
Concept definition:
A number between 0 and 1 indicating the linearly-scaled fraction of a <<
TIME_PERIOD
>> that a specific <<
OBSCURANT_TYPE
>> occurs at a <
LOCATION
> or in a <
REGION
>; visibility obstruction fraction. Zero means that a specific <<
OBSCURANT_TYPE
>> never occurs and one means that a specific <<
OBSCURANT_TYPE
>> always occurs.
Attribute value type:
REAL
Unit equivalence class label:
PURE_NUMBER
Reference type:
IR
Reference:
[
JMBL
, "visibility obstruction frequency"]
Supplemental references:
Group membership:
AIRBORNE_PARTICLE
ATMOSPHERE
LIGHTING_AND_VISIBILITY
RATE_OR_RATIO
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