environmental lapse rate

More generally, the actual rate at which the temperature drops with altitude is called the environmental lapse rate.

The varying environmental lapse rates throughout the Earth's atmosphere are of critical importance in meteorology, particularly within the troposphere.

Thundersnow is one situation where forcing mechanisms provide support for very steep environmental lapse rates, which as mentioned before is an archetype for favored convection.

Environmental lapse rate (ELR), which is the actual temperature decrease with height on any occasion (not an adiabatic rate)

Meanwhile, a large mesoscale convective system (MCS) that had developed overnight in Arkansas continued to strengthen due to strong environmental lapse rates.

The environmental lapse rate (ELR), is the rate of decrease of temperature with altitude in the stationary atmosphere at a given time and location.

The environmental lapse rate (the actual rate at which temperature drops with height, ) is not usually equal to the adiabatic lapse rate (or correspondingly, ).

More formally, the tropopause is the region of the atmosphere where the environmental lapse rate changes from positive, as it behaves in the troposphere, to the stratospheric negative one.

Meteorologists use radiosondes to measure the environmental lapse rate and compare it to the predicted adiabatic lapse rate to forecast the likelihood that air will rise.

Charts of the environmental lapse rate are known as thermodynamic diagrams, examples of which include Skew-T log-P diagrams and tephigrams.

Environmental lapse rate (ELR) - which refers to the actual change of temperature with altitude for the stationary atmosphere (i.e. the temperature gradient)

VT is a measure of the environmental lapse rate; CT is an indication of the low-level moisture and the moisture lapse rate.

Due to the environmental lapse rate, there is a temperature decrease of about 0.6 °C for each 100 m rise in height, and as a result the temperatures over higher ground are generally colder.

Steeper and/or positive lapse rates (environmental air cools quickly with height) suggests atmospheric convection is more likely, while weaker and/or negative environmental lapse rates suggest it is less likely.

Unconditional instability results when the dry adiabatic lapse rate causes air to cool slower than the environmental lapse rate, so air will continue to rise until it reaches the same temperature as its surroundings.

Where the saturated adiabatic lapse rate is greater than the environmental lapse rate, the air cools faster than its environment and thus returns to its original position, irrespective of its moisture content.

If the environmental lapse rate is less than the moist adiabatic lapse rate, the air is absolutely stable - rising air will cool faster than the surrounding air and lose buoyancy.

Although the atmospheric lapse rate (also known as the environmental lapse rate) is most often used to characterize temperature changes, many properties (e.g. atmospheric pressure) can also be profiled by lapse rates...

The atmosphere is considered conditionally unstable where the environmental lapse rate causes a slower decrease in temperature with altitude than the dry adiabatic lapse rate, as long as no latent heat is released (i.e. the saturated adiabatic lapse rate applies).

If the environmental lapse rate is larger than the dry adiabatic lapse rate, it has a superadiabatic lapse rate, the air is absolutely unstable - a parcel of air will gain buoyancy as it rises both below and above the lifting condensation level or convective condensation level.

If the environmental lapse rate is between the moist and dry adiabatic lapse rates, the air is conditionally unstable - an unsaturated parcel of air does not have sufficient buoyancy to rise to the LCL or CCL, and it is stable to weak vertical displacements in either direction.