What is the delay rate?

Most people know the weather balloons make some measurements. In these small boxes suspended from balloons, one of the measurements is the speed of atmospheric delay: the speed of temperature reduction with ascending heights. These small monitoring stations, each smaller than a shoe box, carry out temperatures to penetrate twice a day for two types of delay rate: the degree of environmental delay and adiabatic delay. The speed of temperature delay is important in meteorology, which is an atmospheric science responsible for predicting weather changes, studying vertical stability and monitoring of cloud creation and cloud. If the measurements are carried out at a given location and time, international civil aviation organizations (ICAO) may define an international standard delay rate and provide values ​​that differ according to the same heights, as the inverse layers may cause a temperature expulsion with ascending heights. These values ​​of the environmental delay rate compared to dry or humidStability or instability may be indicated by adiabatic speeds that need to be known because dry air packages do not have a lift of humid air packets.

The dry adiabatic delay rate (gift) is located in an air package that is sealed and has a solid mass. Insulated from the surrounding environment, dry pressures of the adiabatic air packet, inside and outside, usually correspond to and the only way to change the temperature of the packet is to cause changes in these pressures. As the air packet rises, it encounters less external pressure from the increase in altitude and its temperature cools down. The rate of expansion of the air packet cooling is known as the dry adiabatic rate of forfeiture. Increasing cooling eventually arrives at Dew Point when condensation can begin to create clouds. When a plot of air descends pressures and heat causes internal energy that forms high winds such as dry wind SantaAna, who sometimes descends into Los Angeles in California for several days at a time.

The saturated measure of adiabatic forfeiture (SAR) changes with the amount of moisture in the air. It increases at the altitude cold and expands the air packets slower in humid air pockets, because the condensation in them is heating them internally. The release of heat when creating condensation is a factor in the development of thunderstorms. The air is stable when the delay rate is lower than the humid adiabatic rate of forfeiture.

The atmosphere of thermodynamics is expressed in dry and humid adiabatic forces in air land and forms the basis for weather forecasts. The stable atmosphere takes place when the delay of the environmental delay is greater than the dry adiabatic measure. In the time of intense sun heating, the Earth's surface may appear in the southwestern United Supediabatic rate of delays in a thin layer over the surface and are an unstable condition. Similarly, the snow winds of the lakes that moveThe lake surface, creating superdiabatic shallow layers that cause storms when there is enough moisture in the air.

IN OTHER LANGUAGES

Was this article helpful? Thanks for the feedback Thanks for the feedback

How can we help? How can we help?