lifted_index

under discussion
Created: Sept. 7, 2020
Proposer: Beate Geyer and Burkhardt Rockel
Proposed Date: 2020-08-21
Change Date: Sept. 7, 2020, 3:07 p.m.
Term: lifted_index
Unit: 1
Unit ref: UUUU
AMIP:
GRIB:
The lifted index, usually abbreviated to LI, is the temperature difference between the environment and an air parcel lifted adiabatically Tp(p) at a given pressure height in the troposphere, usually 500 hPa. When the value is positive, the atmosphere (at the respective height) is stable and when the value is negative, the atmosphere is unstable.
Change Date: Oct. 6, 2020, 2:21 p.m.
Term: lifted_index
Unit: K
Unit ref: UPKA
AMIP:
GRIB:
The lifted index, usually abbreviated to LI, is the temperature difference between the environment and an air parcel lifted adiabatically Tp(p) at a given pressure height in the troposphere, usually 500 hPa. When the value is positive, the atmosphere (at the respective height) is stable and when the value is negative, the atmosphere is unstable.