Obstacle clearance altitude or obstacle clearance height


             urn:aero:airm:1.0.0:ContextualModel:ATMBusinessTerms:Obstacle_clearance_altitude_or_obstacle_clearance_height

The lowest altitude or the lowest height above the elevation of the relevant runway threshold or the aerodrome elevation as applicable, used in establishing compliance with appropriate obstacle clearance criteria.

Source: ICAO
Synonyms: obstacle clearance altitude/height; OCA/H
Abbreviations: OCA;OCH