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The lapse rate is the rate at which an atmospheric variable, ... the lapse rate in the troposphere is reduced to around 6.5 °C/km [8] ...
The actual rate at which the temperature decreases with altitude is the environmental lapse rate. In the troposphere, the average environmental lapse rate is a decrease of about 6.5 °C for every 1.0 km (1,000m) of increased altitude. [2]
Troposphere: 0 0 -6.5 +15.0 (288.15) 101,325 1.225 1 Tropopause: ... Note that the Lapse Rates cited in the table are given as °C per kilometer of geopotential ...
Pressure as a function of the height above the sea level. There are two equations for computing pressure as a function of height. The first equation is applicable to the atmospheric layers in which the temperature is assumed to vary with altitude at a non null lapse rate of : = [,, ()] ′, The second equation is applicable to the atmospheric layers in which the temperature is assumed not to ...
The tropopause is defined as the lowest level at which the lapse rate decreases to 2°C/km or less, provided that the average lapse-rate, between that level and all other higher levels within 2.0 km does not exceed 2°C/km. [1] The tropopause is a first-order discontinuity surface, in which temperature as a function of height varies ...
This lapse rate is known as the dry adiabatic lapse rate. [3] In a completely moist troposphere, a temperature decrease with height less than 6 °C (11 °F) per kilometer ascent indicates stability, while greater changes indicate instability.
The ambient lapse rate differs in different meteorological conditions, but, on average, is 2 °C (3.6 °F) per 1,000 vertical feet (300 m). Lower tropospheric stability [ edit ]
The troposphere is the lowest of the four layers and extends from the surface of the Earth to about 11 km (6.8 mi) into the atmosphere, where the tropopause (the boundary between the troposphere stratosphere) is located. The width of the troposphere can vary depending on latitude: for example, the troposphere is thicker in the tropics (about 16 ...