What does AGL refer to in flight operations?

AGL stands for Above Ground Level. In flight operations, this term is crucial as it indicates the height of an aircraft above the Earth's surface. This measurement is important for various aspects of flight, including navigation, terrain awareness, and safe altitude determination during takeoff and landing phases. Pilots and dispatchers use AGL measurements to ensure that they maintain safe operating altitudes above obstacles and terrain, especially in environments with variable elevation.

Understanding AGL is also vital when assessing approach paths and ensuring compliance with altitude regulations during different phases of flight. This contextual awareness helps in improving flight safety and operational efficiency. Other terms listed, such as Airborne Gear Level or Aircraft Guideline Length, do not have standard relevance in aviation terminology, and Altitude Ground Level conflates two different concepts, potentially leading to confusion where clarity is essential.