Standard atmosphere

Standard atmosphere may refer to:

• A standard reference value for air pressure:
  • Atmosphere (unit), an approximation of the value at sea level
  • Atmospheric pressure, other reference values
• A model of how atmospheric pressure varies with altitude:
  • The U.S. Standard Atmosphere, a series of models that give values for pressure, density, and temperature over a range of altitudes
  • The International Standard Atmosphere (ISA), an international standard model, defining typical atmospheric properties with altitude, at mid-latitude

See also

• Atmospheric models
• NRLMSISE-00
• Standard conditions for temperature and pressure

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