Altitude (also referred to as elevation) is "[t]he distance of a location above a reference surface."
|“||[t]he vertical distance of a level, a point or an object considered as a point, measured from mean sea level (MSL).||”|
- ↑ Geodetic Glossary.
- ↑ UVS International, RPAS Glossary 120821, at 2 (full-text).
- ↑ Wiki.GIS.com, GIS Glossary (full-text).