Terrain
From EUROCONTROL ATM Lexicon
Link | Semantic Value |
---|---|
Term | terrain |
Status |
|
Mandatory for |
|
Contexts | |
Categories | |
Synonyms |
|
Related entries |
|
Broader term |
|
Narrower term |
|
Abbreviation
Definition
The surface of the Earth containing naturally occurring features such as mountains, hills, ridges, valleys, bodies of water, permanent ice and snow, excluding obstacles.
Definition Source
ICAO, Official definition, Annex 15 (Aeronautical Information Services, 2010)