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METNO - Climate and Forecast Standard Names Vocabulary

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Preferred term

temperature_difference_between_ambient_air_and_air_lifted_adiabatically  

Definition

  • This quantity is defined as the temperature difference between a parcel of air lifted adiabatically from a starting air pressure to a finishing air pressure in the troposphere and the ambient air temperature at the finishing air pressure in the troposphere. It is often called the lifted index (LI) and provides a measure of the instability of the atmosphere. The air parcel is "lifted" by moving the air parcel from the starting air pressure to the Lifting Condensation Level (dry adiabatically) and then from the Lifting Condensation Level to the finishing air pressure (wet adiabatically). Air temperature is the bulk temperature of the air. Coordinate variables of original_air_pressure_of_lifted_parcel and final_air_pressure_of_lifted_parcel should be specified to indicate the specific air pressures at which the parcel lifting starts (starting air pressure) and the temperature difference is calculated at (finishing air pressure), respectively.

Note

  • Mapping to be determined

Source

URI

https://vocab.met.no/CFSTDN/temperature_difference_between_ambient_air_and_air_lifted_adiabatically

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