Barometric Altitude

Barometric Altitude

What is Barometric Altitude?

Measuring Height Above Sea Level

The altitude of an aircraft is determined by a barometer, this is normally through the use of an altimeter, which measures the pressure of the surrounding air.

Barometric altitude is the altitude of an aircraft as measured by a barometer, usually an altimeter in the cockpit, which determines altitude by measuring air pressure.

• Usage and Importance: It is a primary method used by pilots to ascertain their altitude, which is crucial for maintaining safe separation from terrain and other aircraft.
• Standard Pressure Settings: Barometric altimeters are calibrated to a standard pressure setting, and pilots adjust them according to current atmospheric pressure readings for accuracy.
• Limitations: Barometric altitude can be affected by changes in weather and must be regularly adjusted for accurate readings.

Barometric altitude, measured by an aircraft's altimeter, is a fundamental aspect of navigation and safety in aviation.