Altitude

Altitude is the elevation of an object from a known level or datum, called zero level. Most often this level is defined as the absolute sea level, but it can vary.

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In aviation, the term altitude is used to describe elevation above mean sea level, the term height refers to elevation above a ground reference point and the term flight level is the elevation according to a standard pressure altimeter setting.

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Atmospheric pressure decreases with altitude.

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In North America and the UK altitude is usually measured in feet. In continental Europe and other parts of the world altitude is measured in metres.

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• High altitude = 1500m – 3500m
• Very High altitude = 3500m – 5500m
• Extreme altitude = 5500m – above
• Troposphere — 8 km (above poles) – 18 km (above equator).
• Tropopause
• Stratosphere — 10km (above poles) 50 km (above equator),contains the Ozone layer
• Mesosphere — 50 km – 80 km
• Thermosphere — 100–200 km (1000?–1500? K)
• Exosphere — 500 km – 10,000km (outer space)
Altitude: Altitude records ►



 

Elevation: :For other senses of this word, see elevation (disambiguation)....

Datum: :This article describes a concept from surveying and geodesy. Datum is also the singular form of data....

Aviation: Aviation or Air transport refers to the activities surrounding mechanical flight and the aircraft industry. Aircraft, include fixed wing (airplane) and rotary wing (helicopter/autogyro) types, as well as lighter-than-air craft such as balloons and airships (also known as dirigibles.)...




Altitude related Images and Photos (experimental)

The Staple Singers - Be Altitude: Respect Yourself	The Staple Singers - Be Altitude: Respect Yourself	Mountain Climbing at High Altitude Using Oxygen Masks with the Cylinders Strapped to Their Backs	The U.II is Attacked at Low Altitude by the French Squadron of Jean Roulier
Col. John P. Stapp Watching a Subject in the Altitude Chamber