##### Absolute Altitude Absolute altitude is the vertical distance of the aircraft above the terrain over which it is flying. It can be measured using a [[LRRA|radar altimeter]]  (or absolute altimeter). Also referred to as "radar height" or feet/metres above ground level ([[AGL]]). >Covered in: >Mentioned in: >References: [[WP Altitude|🌍]] >Required by: > >Related to: [[Altitude]]