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

Famous quotes containing the words standard and/or atmosphere:

    This unlettered man’s speaking and writing are standard English. Some words and phrases deemed vulgarisms and Americanisms before, he has made standard American; such as “It will pay.” It suggests that the one great rule of composition—and if I were a professor of rhetoric I should insist on this—is, to speak the truth. This first, this second, this third; pebbles in your mouth or not. This demands earnestness and manhood chiefly.
    Henry David Thoreau (1817–1862)

    And so I look on those sentiments which make the glory of the human being, love, humility, faith, as being also the intimacy of Divinity in the atoms; and, that, as soon as the man is right, assurances and previsions emanate from the interior of his body and his mind; as, when flowers reach their ripeness, incence exhales from them, and, as a beautiful atmosphere is generated from the planet by the averaged emanations from all its rocks and soils.
    Ralph Waldo Emerson (1803–1882)