Aviation dictionary. 2014.
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
pseudolapse rate — The rate of cooling of ascending saturated air. It is approximately 1.5°C/1000 ft but may reduce to as little as 1°C/1000 ft in the warm saturated tropical regions. It may exceed 2°C/1000 ft when the temperature of the air falls below the… … Aviation dictionary
Chinook wind — For other uses, see Chinook (disambiguation). Adiabatic warming of downward moving air produces the warm Chinook wind Chinook winds ( / … 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
Atmospheric thermodynamics — In the physical sciences, atmospheric thermodynamics is the study of heat and energy transformations in the earth’s atmospheric system. Following the fundamental laws of classical thermodynamics, atmospheric thermodynamics studies such phenomena… … Wikipedia
Level of free convection — The level of free convection (LFC) is the altitude in the atmosphere where the temperature of the environment decreases faster than the moist adiabatic lapse rate of a saturated air parcel at the same level.The usual way of finding the LFC is to… … Wikipedia
Wet-bulb temperature — The wet bulb temperature is a type of temperature measurement that reflects the physical properties of a system with a mixture of a gas and a vapor, usually air and water vapor. Wet bulb temperature can have several technical meanings:… … Wikipedia
Equivalent potential temperature — Equivalent potential temperature, commonly referred to as Theta e left( heta e ight), is a quantity related to the stability of a column of air in the atmosphere. heta e is the temperature a parcel of air would reach if all the water vapor in the … Wikipedia
Microburst — Illustration of a microburst. Note the downward motion of the air until it hits ground level. It then spreads outward in all directions. The wind regime in a microburst is opposite to that of a tornado … Wikipedia
