Definition[edit | edit source]

Absolute altitude is

[t]he height of an aircraft directly above the surface or terrain over which it is flying.[1]

References[edit | edit source]

  1. NATO Intelligence, Surveillance, and Reconnaissance (ISR) Interoperability Architecture (NIIA), Vol. 4: NIIA Terms and Definitions A-6 (Sept. 2005) (full-text).
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