Minimum Descent Height
|Term||Minimum Descent Height|
A specified minimum height in a non-precision approach or circling approach below which descent must not be made without the required visual reference.
Minimum Descent Height (MDH) is referenced to the aerodrome elevation or to the threshold elevation if that is more than 2 metres (7 feet) below the aerodrome elevation. A minimum descent height for a circling approach is referenced to the aerodrome elevation.