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Density and specific volume of air varies with elevation above sea level. The density of air varies with pressure ( the Ideal Gas Law ) and the altitude above sea level. Mean absolute pressure at sea level is approximately 760 mmHg (101.325 kPa, kN/m 2 ) with a variation is about +/- 5% .
- Atmospheric Pressure Vs. Elevation Above Sea Level
Air pressure above sea level can be calculated as. p =...
- Barometer
Elevation above sea level - in feet and meter - with...
- Air Temperature, Pressure and Density Vs. Altitude
Air volume vs. temperature correction factor compared to...
- Volume Vs. Temperature
Air - Density and Specific Volume vs. Altitude Density and...
- Wind Power
Density and specific volume of air varies with elevation...
- The Ideal Gas Law
The Ideal Gas Law and the Individual Gas Constant - R The...
- Atmospheric Pressure Vs. Elevation Above Sea Level
International standard atmosphere in elevation -2000 to 30000 metre - pressure, temperature, density, viscosity, thermal conductivity and velocity of sound.
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.
Online calculator, figures and tables showing density, specific weight and thermal expansion coefficients of air at temperatures ranging -100 to 1600 °C (-140 to 2900 °F) at atmospheric and higher pressure - Imperial and SI Units.
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.
For dry air, its density at sea level at 59 °F (15 °C) and 14.7 psi (1013.25 hPa) (mean sea-level pressure) is approximately 0.0765 lb/(cu ft) (1.225 kg/(m^3)). If you change the air temperature, humidity, or altitude (and hence the pressure), the air density will change, too.
Standard Atmosphere vs Altitude. A detailed table containing valuable data on air density, pressure, and temperature at various altitudes measured from mean sea level. The table is presented in both SI and US customary units, providing you with options to choose the unit system that is most convenient for your needs.
