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International standard atmosphere in elevation -2000 to 30000 metre - pressure, temperature, density, viscosity, thermal conductivity and velocity of sound.
- Barometric Pressure
International standard atmosphere in elevation -2000 to...
- Elevation
Speed of sound in air at standard atmospheric pressure with...
- Air Temperature, Pressure and Density Vs. Altitude
Elevation above sea level - in feet and meter - with...
- U.S. Standard Atmosphere
The " U.S. Standard Atmosphere 1976" is an atmospheric model...
- Barometric Pressure
Standard sea-level conditions (SSL), [1] also known as sea-level standard (SLS), defines a set of atmospheric conditions for physical calculations. The term "standard sea level" is used to indicate that values of properties are to be taken to be the same as those standard at sea level, and is done to define values for use in general calculations.
The density of air or atmospheric density, denoted ρ, is the mass per unit volume of Earth's atmosphere. Air density, like air pressure, decreases with increasing altitude. It also changes with variations in atmospheric pressure, temperature and humidity.
The " U.S. Standard Atmosphere 1976" is an atmospheric model of how the pressure, temperature, density, and viscosity of the Earth's atmosphere changes with altitude. It is defined as having a temperature of 288.15 K (15 oC, 59 oF) at the sea level 0 km geometrical height and 101325 Pa (1013.25 hPa, 1013.25 mbar, 760 mm Hg, 29.92 in Hg).
With a temperature lapse rate of −6.5 °C (-11.7 °F) per km (roughly −2 °C (-3.6 °F) per 1,000 ft), the table interpolates to the standard mean sea level values of 15 °C (59 °F) temperature, 101,325 pascals (14.6959 psi) (1 atm) pressure, and a density of 1.2250 kilograms per cubic meter (0.07647 lb/cu ft).
International Standard Atmosphere. Sea Level Conditions. Property: Metric Value: Imperial Value: Pressure: 101.3 kPa: 2116.2 lb f /ft 2: Density: 1.225 Kg/m 3: 0.002378 slug/ft 3: Temperature
Pressure, temperature, density, viscosity and speed of sound variation for the international standard atmosphere (ISA) can be calculated for a range of altitudes from sea level upward. This is done using an exact solution to the hydrostatic equation for a column of air.
