Vertical rate of change of temperature in atmosphere
Higher Czarny Staw pod Rysami lake (elevation 1,583 metres (5,194 ft)) is still frozen as the lower Morskie Oko lake has already almost melted (elevation 1,395 metres (4,577 ft). Photo from Polish side of the Tatra mountains, May 2019.
The lapse rate is the rate at which an atmospheric variable, normally temperature in Earth's atmosphere, falls with altitude.[1][2]Lapse rate arises from the word lapse, in the sense of a gradual fall. In dry air, the adiabatic lapse rate (i.e., decrease in temperature of a parcel of air that rises in the atmosphere without exchange energy with surrounding air) is 9.8 °C/km (5.4 °F per 1,000 ft). The saturated adiabatic lapse rate (SALR), or moist adiabatic lapse rate (MALR), is the decrease in temperature of a parcel of water-saturated air that rises in the atmosphere. It varies with the temperature and pressure of the parcel and is often in the range 3.6 to 9.2 °C/km (2 to 5 °F/1000 ft), as obtained from the International Civil Aviation Organization (ICAO). The environmental lapse rate is the decrease in temperature of air with altitude for a specific time and place (see below). It can be highly variable between circumstances.
Lapse rate corresponds to the vertical component of the spatial gradient of temperature. Although this concept is most often applied to the Earth's troposphere, it can be extended to any gravitationally supported parcel of gas.
^Jacobson, Mark Zachary (2005). Fundamentals of Atmospheric Modeling (2nd ed.). Cambridge University Press. ISBN 978-0-521-83970-9.
^Ahrens, C. Donald (2006). Meteorology Today (8th ed.). Brooks/Cole Publishing. ISBN 978-0-495-01162-0.
The lapserate is the rate at which an atmospheric variable, normally temperature in Earth's atmosphere, falls with altitude. Lapserate arises from the...
with increased altitude, and the rate of decrease in air temperature is measured with the Environmental LapseRate ( − d T / d z {\displaystyle -dT/dz}...
temperature decreases (or "lapses") with increasing altitude. The rate at which temperature changes with altitude is called the lapserate. On Earth, the air...
swamped by other changes in the biosphere due to global warming. The lapserate is the rate at which an atmospheric variable, normally temperature in Earth's...
wills Lapserate, the rate that atmospheric pressure decreases with altitude Doctrine of lapse, an annexationist policy in British India The Lapse, an defunct...
the temperature remains constant. a lapserate given per kilometer of geopotential altitude (A positive lapserate (λ > 0) means temperature increases...
which the temperature is assumed to vary with altitude at a non null lapserate of L b {\displaystyle L_{b}} : P = P b [ 1 − L M , b T M , b ( h − h b...
and releases heat, which changes the lapserate from the dry adiabatic lapserate to the moist adiabatic lapserate (5.5 °C per kilometer or 3 °F [1.7 °C]...
the lapserate from the dry adiabatic lapserate to the moist adiabatic lapserate (5.5 °C per kilometre or 3 °F per 1000 feet). The actual lapserate, called...
discrimination is due to the problematic assumptions (assuming a standard lapserate) associated with reduction of sea level from high elevations. The Dead...
defined as the lowest level at which the lapserate decreases to 2°C/km or less, provided that the average lapse-rate, between that level and all other higher...
warm more slowly (at the moist adiabatic lapserate) than the sub-cloud, dry air (at the dry adiabatic lapserate). Because of the differential warming,...
profile Geodesy GTOPO30 Height, general Hypsometric tints Lapserate, or the adiabatic lapserate List of European cities by elevation List of highest mountains...
involve temperature changes through the troposphere with height, or lapserate. Effects of atmospheric instability in moist atmospheres include thunderstorm...
adiabatic lapserate of an air mass and the ambient lapserate in the atmosphere. If the adiabatic lapserate is lower than the ambient lapserate, an air...
long term monthly mean, the temperature lapserate is according to ISA and the relative humidity lapserate is zero. QFF is the location value plotted...
off very slowly or not at all with altitude; that is, the environmental lapserate is small or negative. Cumulus humilis clouds often have little variance...
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temperature begins to drop, increasing the adiabatic lapserate. Under certain conditions, the lapserate can increase significantly in a short amount of time...
lift a layer of air off the ground and it depressurizes, following the lapserate. This causes the relative humidity to increase due to the adiabatic cooling...
meteorological balloons. Rate of climb Lapserate This disambiguation page lists articles associated with the title Ascent rate. If an internal link led...
temperature (T) and pressure of the air parcel and follow the dry adiabatic lapserate line upward (provided that the RH in the air parcel is less than 100%...
completely flat surface. If the lapserate were higher than this (temperature increasing with height at a greater rate), all optical observations would...
(temperature difference layer) in the atmosphere.[jargon] Different lapserates within dry and moist air masses lead to instability.[jargon] Mixing of...
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