Approach Minimum Visibility
|Term||Approach Minimum Visibility|
The lowest prevailing visibility needed to land at the aerodrome when at the specified minimum altitude or height.
Aeronautical Information Feature Data Dictionary (AIFDD)
The visibility value, observed in accordance with the definition of ""visibility"", which is reached or exceeded within at least half the horizon circle or within at least half of the surface of the aerodrome. These areas could comprise contiguous or non-contiguous sectors. This value may be assessed by human observation and/or instrumented systems. When instruments are installed, they are used to obtain the best estimate of the prevailing visibility.