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pressure lapse rate

См. также в других словарях:

  • Lapse rate — The lapse rate is defined as the rate of decrease with height for an atmospheric variable. The variable involved is temperature unless specified otherwise.[1][2] The terminology arises from the word lapse in the sense of a decrease or decline;… …   Wikipedia

  • lapse rate — Meteorol. the rate of decrease of atmospheric temperature with increase of elevation vertically above a given location. [1915 20] * * * ▪ meteorology       rate of change in temperature observed while moving upward through the Earth s atmosphere …   Universalium

  • dry adiabatic lapse rate — The rate of decrease of the temperature with the height of a parcel of dry air lifted adiabatically through the earth’s atmosphere in hydrostatic equilibrium. This lapse rate is g/cp, where g is the acceleration of gravity and cp is the specific… …   Aviation dictionary

  • Atmospheric pressure — Air pressure redirects here. For the pressure of air in other systems, see pressure. Atmospheric pressure is the force per unit area exerted against a surface by the weight of air above that surface in the Earth s atmosphere. In most… …   Wikipedia

  • Qff — is a Q code. It is the MSL pressure derived from the barometric pressure at the station location by calculating the weight of an imaginary air column, extending from the location to sea level, assuming the temperature and relative humidity at the …   Wikipedia

  • atmosphere — atmosphereless, adj. /at meuhs fear /, n., v., atmosphered, atmosphering. n. 1. the gaseous envelope surrounding the earth; the air. 2. this medium at a given place. 3. Astron. the gaseous envelope surrounding a heavenly body. 4. Chem. any… …   Universalium

  • Troposphere — The troposphere is the lowest portion of Earth s atmosphere. It contains approximately 75% of the atmosphere s mass and almost all of its water vapor and aerosols. The average depth of the troposphere is about 11 km (7 miles) in the middle… …   Wikipedia

  • Convective instability — For a more general discussion of the same phenomenon, see Convective available potential energy. This article incorporates public domain text created by the US government. In meteorology, convective instability or stability of an airmass refers… …   Wikipedia

  • Barometric formula — The barometric formula, sometimes called the exponential atmosphere or isothermal atmosphere , is a formula used to model how the pressure (or density) of the air changes with altitude.Pressure equationsThere are two different equations for… …   Wikipedia

  • fluid mechanics — an applied science dealing with the basic principles of gaseous and liquid matter. Cf. fluid dynamics. [1940 45] * * * Study of the effects of forces and energy on liquids and gases. One branch of the field, hydrostatics, deals with fluids at… …   Universalium

  • Turbofan — [ CFM56 3 turbofan, lower half, side view.] A turbofan is a type of jet engine, similar to a turbojet. It essentially consists of a ducted fan with a smaller diameter turbojet engine mounted behind it that powers the fan. Part of the airstream… …   Wikipedia

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